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Liu J, Li Q, Mao F, Wang K, Wu H. 2D MOFs-based Materials for the Application of Water Pollutants Removing: Fundamentals and Prospects. Chem Asian J 2021; 16:3585-3598. [PMID: 34569726 DOI: 10.1002/asia.202100881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/18/2021] [Indexed: 12/27/2022]
Abstract
Water quality can have serious impacts on human health. One crucial issue of water pollution seriously affects our safety due to the continually emerging of discovered anthropogenic pollutants. The water treatment technologies are persistent improvement to adapt such new contaminants, which accelerates the evolution of materials science to explore solving the problems. Metal-organic Frameworks (MOFs) as the significant porous and multi-dimensional networks has been concerned for toxic pollutant elimination, especially probed the applications of outstanding layered 2D skeletons MOFs-based materials. The emphases of this review highlight the 2D MOFs-based materials used in water remediation and treatment strategies including adsorption and catalysis methods. Further, the prospects and challenges of 2D MOFs-based materials for water treatments applications would be surveyed meticulously for the future research and development.
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Affiliation(s)
- Jiadi Liu
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Qingqing Li
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Feifei Mao
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Kuaibing Wang
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Hua Wu
- Jiangsu Key Laboratory of Pesticide Sciences, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China.,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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Pastushok O, Ramasamy DL, Sillanpää M, Repo E. Enhanced ammonium removal and recovery from municipal wastewater by asymmetric CDI cell equipped with oxygen functionalized carbon electrode. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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53
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Zhu J, Li T, Liao C, Li N, Wang X. A promising destiny for Feammox: From biogeochemical ammonium oxidation to wastewater treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148038. [PMID: 34090165 DOI: 10.1016/j.scitotenv.2021.148038] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 06/12/2023]
Abstract
Ammonium is one of the most common forms of nitrogen that exists in wastewater, and it can cause severe pollution when it is discharged without treatment. New technologies must be developed to effectively remove ammonium because conventional nitrification-denitrification methods are limited by the lack of organic carbon. Anaerobic ammonium oxidation coupled to Fe(III) reduction is known as Feammox, and is a recently discovered nitrogen cycling process. Feammox can proceed under autotrophic or anaerobic conditions and effectively transforms ammonium to stable, innocuous dinitrogen gas, using the ferric iron as an electron acceptor. This method is cost-effective, environmentally friendly, and conducive to joint application with other nitrogen removal reactions in low-C/N municipal wastewater treatments. This review provides a comprehensive survey of Feammox mechanistic investigations and presents studies regarding the functional microorganism colonies. The potential for Feammox to be applied for the removal of nitrogen from various polluted water sources and the combination of the Feammox process with other frontier environmental technologies are also discussed. In addition, future perspectives for removing ammonium using Feammox are presented.
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Affiliation(s)
- Jiaxuan Zhu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Tian Li
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Chengmei Liao
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Nan Li
- School of Environmental Science and Engineering, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Xin Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China.
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54
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Zhang R, Yang S, Dong C, Qiao Y, Zhang J, Guo Y. Synthesized akhtenskites remove ammonium and manganese from aqueous solution: removal mechanism and the effect of structural cations. RSC Adv 2021; 11:33798-33808. [PMID: 35497537 PMCID: PMC9042269 DOI: 10.1039/d1ra06025b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/27/2021] [Indexed: 11/23/2022] Open
Abstract
Ammonium and manganese removal by tunnel-structured manganese oxide is still enigmatic. Herein, tunnel-structured akhtenskites with different structural cations (Na-MnO x , Mg-MnO x Ca-MnO x , Fe-MnO x ) were synthesized by the KMnO4 and Mn2+ reaction in the presence of different metal cations, and were used to remove ammonium and manganese from aqueous solution. The results of the batch adsorption experiments indicated that akhtenskites effectively removed NH4 + and Mn2+, and the removal process fitted the pseudo-second-order model. By measuring the concentration of nitrate and nitrite, discriminating the adsorbed and oxidized Mn2+, and testing the zeta potential of the oxides, it can be concluded that NH4 + was merely removed by electrostatic adsorption via [triple bond, length as m-dash]Mn-O-; Mn2+ could also be adsorbed by ion exchange with [triple bond, length as m-dash]Mn-OH, and the adsorbed Mn2+ could be partly oxidized. The structural properties of the akhtenskites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) specific area, and X-ray photoelectron spectroscopy (XPS). The experimental results showed that ions with higher valence can result in a higher percentage of Mn(iii) in akhtenskite. Mg2+ can result in a lower proportion of lattice oxygen in the oxide, and Fe3+ can increase the pH of the point of zero charge. Both of them were unfavored for the oxidation of Mn2+. Moreover, it was found that Ca-MnO x had optimal removal performance in the catalytic oxidation of Mn2+ owing to appropriate percentages of Olatt and Mn(iii) and lower zeta potential. This study provides new insights into the synthesis and application of manganese oxides.
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Affiliation(s)
- Ruifeng Zhang
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
| | - Shilian Yang
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
| | - Chuan Dong
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
| | - Yu Qiao
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
| | - Jianmin Zhang
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
| | - Yingming Guo
- School of Urban Planning and Municipal Engineering, Xi'an Polytechnic University Xi'an 710048 PR China +86-029-6277-9357
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Mulders M, Tamis J, Stouten GR, Kleerebezem R. Simultaneous growth and poly(3-hydroxybutyrate) (PHB) accumulation in a Plasticicumulans acidivorans dominated enrichment culture. J Biotechnol 2021; 324S:100027. [PMID: 34154735 DOI: 10.1016/j.btecx.2020.100027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/20/2020] [Accepted: 10/06/2020] [Indexed: 11/29/2022]
Abstract
The wide variety of organic carbon to nitrogen and phosphorous ratios that are encountered in different wastewaters has a major impact on the poly(3-hydroxybutyrate) (PHB) accumulation potential of microbial communities. In this study we investigated the influence of the substrate composition in terms of the carbon to nitrogen (C/N) or phosphorus (C/P) ratio on the PHB accumulation performance. A multi-reactor set-up was used, enabling parallel experiments using identical inoculum of an enrichment culture dominated by Plasticicumulans acidivorans. In all experiments simultaneous PHB production and growth was observed. Generally, when trace amounts of growth nutrients were present the PHB production yield on substrate remained high for at least 12 h. Interestingly, from the carbon to nutrient ratio in the substrate, the PHB wt% could be accurately predicted in the accumulations. This study demonstrates that strict uncoupling of microbial growth and PHA accumulation is not required for achieving high cellular PHA-contents. Herewith the range of wastewaters that enable a cellular PHA content of 80 % or higher for at least 12 h is expanded to C:N and C:P-ratios exceeding COD:N of 26 gCOD:gNH4-N and COD:P of 511 gCOD:gPO4-P respectively.
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Affiliation(s)
- Michel Mulders
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, the Netherlands.
| | - Jelmer Tamis
- Paques BV, Tjalke de Boerstritte 24, 8561 EL, Balk, the Netherlands
| | - Gerben Roelandt Stouten
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, the Netherlands
| | - Robbert Kleerebezem
- Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ, Delft, the Netherlands
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56
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Guida S, Conzelmann L, Remy C, Vale P, Jefferson B, Soares A. Resilience and life cycle assessment of ion exchange process for ammonium removal from municipal wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:146834. [PMID: 33862397 DOI: 10.1016/j.scitotenv.2021.146834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/07/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
This study was completed to understand the resilience of an ion exchange (IEX) process for its ability to remove variable ammonium (NH4+-N) loads) and to prove its environmental benefits through a life cycle assessment (LCA). The tertiary 10 m3/day demonstration scale IEX was fed with variable NH4+-N concentrations (<0.006-26 mg NH4+-N /L) naturally found in municipal wastewater. Zeolite-N was used as ion exchange media and regeneration was completed with 10% potassium chloride (KCl). The influent NH4+-N concentration impacted the ion exchange capacity, which ranged from 0.9-17.7 mg NH4+-N/g media. When the influent concentration was <2.5 mg NH4+-N/L, the Zeolite-N released NH4+-N (up to 12%). However, the exchange increased up to 62% when the influent NH4+-N load peaked, confirming the resilience of the process. A 94% regeneration efficiency was obtained with fresh regenerant, however, with the increase of the mass of NH4+-N on the media, the regeneration efficiency decreased. An optimisation of the volume of brine and regeneration contact time is suggested. To further measure the benefits of the IEX process, an LCA was conducted, for a 10,000 population equivalent reference scenario, and compared with traditional nitrification-denitrification WWTP. The LCA revealed that IEX with regenerant re-use and NH4+-N recovery through a membrane stripping process resulted in reductions of: 25% cumulative energy demand; 66% global warming potential and 62% marine eutrophication potential, when compared to traditional WWTP. This work demonstrated that the IEX process is an efficient and an environmentally benign technology that can be widely applied in WWTPs.
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Affiliation(s)
- Samuela Guida
- Cranfield Water Sciences Institute, College Road, Cranfield, Bedford MK43 0AL, United Kingdom
| | - Lea Conzelmann
- Kompetenzzentrum Wasser Berlin, Cicerostraße 24, 10709 Berlin, Germany
| | - Christian Remy
- Kompetenzzentrum Wasser Berlin, Cicerostraße 24, 10709 Berlin, Germany
| | - Pete Vale
- Severn Trent Water, 2 St Johns St, Coventry CV1 2LZ, United Kingdom
| | - Bruce Jefferson
- Cranfield Water Sciences Institute, College Road, Cranfield, Bedford MK43 0AL, United Kingdom
| | - Ana Soares
- Cranfield Water Sciences Institute, College Road, Cranfield, Bedford MK43 0AL, United Kingdom.
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57
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Leszczyński J. Removal of Ammonium Ions from Aqueous Solutions Using Weathered Halloysite. MATERIALS 2021; 14:ma14164359. [PMID: 34442880 PMCID: PMC8399768 DOI: 10.3390/ma14164359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 01/16/2023]
Abstract
This study investigated the use of weathered halloysite as an ion exchange material for ammonium removal from water. The study was conducted under static and dynamic conditions. The influence of such parameters as the preliminary concentration of ammonium ions, dose of halloysite, and pH was examined in periodic studies. The ion exchange capacity of weathered halloysite under various regeneration conditions such as concentration, excess of regeneration solution and the pH at which the regeneration was performed was also determined. The effect of flow velocity, initial NH4+-ions concentration was studied in column tests and the weathered halloysite’s ion -exchange capacity was also determined. The best results of ammonium ion removal were obtained at pH 6. The equilibrium isotherms were described using the Langmuir and Freundlich models. The results of periodic studies show a good fit for the data of both models, with Langmuir isotherms reflecting the removal of ammonium ions better. A good match for the data (R2 > 0.99) was provided by a pseudo second-order kinetic model. The obtained results indicate that a properly prepared halloysite can be a useful mineral for the removal of dangerous substances, such as ammonium ions, present in natural waters.
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Affiliation(s)
- Jacek Leszczyński
- Department of Technology in Environmental Engineering, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Białystok, Poland
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58
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Zhang X, Liu Y. Circular economy-driven ammonium recovery from municipal wastewater: State of the art, challenges and solutions forward. BIORESOURCE TECHNOLOGY 2021; 334:125231. [PMID: 33962161 DOI: 10.1016/j.biortech.2021.125231] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/22/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
In current biological nitrogen removal (BNR) processes, most of ammonium in municipal wastewater is biologically transformed to nitrogen gas, making ammonium recovery impossible. Thus, this article aims to provide a holistic review with in-depth discussions on (i) current BNR processes for municipal wastewater treatment, (ii) environmental and economic costs behind ammonium in municipal wastewater, (iii) state of the art of ammonium recovery from municipal wastewater including anaerobic membrane bioreactor turning municipal wastewater to a liquid fertilizer, capturing ammonium in phototrophic biomass, waste activated sludge for land application, bioelectrochemical systems, biological conversion of ammonium to nitrous oxide as a fuel oxidizer, and adsorption, (iv) feasibility and challenge of adsorption for ammonium recovery from municipal wastewater and (v) innovative municipal wastewater reclamation processes coupled with ammonium recovery. Moving forward, municipal wastewater reclamation and resource recovery should be addressed under the framework of circular economy.
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Affiliation(s)
- Xiaoyuan Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore
| | - Yu Liu
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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59
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Ammonia adsorption by L-type zeolite and Prussian blue from aqueous and culture solutions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Effect of Acid Flow Rate, Membrane Surface Area, and Capture Solution on the Effectiveness of Suspended GPM Systems to Recover Ammonia. MEMBRANES 2021; 11:membranes11070538. [PMID: 34357188 PMCID: PMC8304997 DOI: 10.3390/membranes11070538] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/26/2022]
Abstract
Ammonia losses from manure pose serious problems for ecosystems and human and animal health. Gas-permeable membranes (GPMs) constitute a promising approach to address the challenge of reducing farm ammonia emissions and to attain the EU’s Clean Air Package goals. In this study, the effect of NH3-N concentration, membrane surface area, acid flux, and type of capture solution on ammonia recovery was investigated for a suspended GPM system through three experiments, in which ammonia was released from a synthetic solution (NH4Cl + NaHCO3 + allylthiourea). The effect of two surface areas (81.7 and 163.4 cm2) was first evaluated using three different synthetic N emitting concentrations (3000, 6000, and 12,000 mg NH3-N∙L−1) and keeping the flow of acidic solution (1N H2SO4) constant (0.8 L·h−1). A direct relationship was found between the amount of NH3 captured and the NH3-N concentration in the N-emitting solution, and between the amount of NH3 captured and the membrane surface area at the two lowest concentrations. Nonetheless, the use of a larger membrane surface barely improved ammonia capture at the highest concentration, pointing to the existence of other limiting factors. Hence, ammonia capture was then studied using different acid flow rates (0.8, 1.3, 1.6, and 2.1 L∙h−1) at a fixed N emitting concentration of 6000 mg NH3-N∙L−1 and a surface area of 122.5 cm2. A higher acid flow rate (0.8–2.1 L∙h−1) resulted in a substantial increase in ammonia absorption, from 165 to 262 mg of NH3∙d−1 over a 14-day period. Taking the parameters that led to the best results in experiments 1 and 2, different types of ammonia capture solutions (H2SO4, water and carbonated water) were finally compared under refrigeration conditions (at 2 °C). A high NH3 recovery (81% in 7 days), comparable to that obtained with the H2SO4 solution (88%), was attained when chilled water was used as the capture solution. The presented results point to the need to carefully optimize the emitter concentration, flow rate, and type of capture solution to maximize the effectiveness of suspended GPM systems, and suggest that chilled water may be used as an alternative to conventional acidic solutions, with associated savings.
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Değermenci N, Yildiz E. Ammonia stripping using a continuous flow jet loop reactor: mass transfer of ammonia and effect on stripping performance of influent ammonia concentration, hydraulic retention time, temperature, and air flow rate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:31462-31469. [PMID: 33608788 DOI: 10.1007/s11356-021-13005-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 02/12/2021] [Indexed: 06/12/2023]
Abstract
When wastewater containing ammonia is discharged into the receiving environment without any kind of treatment, it causes both environmental problems and negatively affects human health. In this study, the aim was to strip ammonia using air in a continuous flow jet loop reactor (JLR) and investigate the effects of ammonia concentration, hydraulic retention time (HRT), air flow rate, and temperature on ammonia removal within this scope. By changing the ammonia concentration in the influent, no significant change was observed in ammonia removal efficiency. With air flow rate 45 L min-1, temperature 50 °C, pH 11, and HRT 7.5 h, mean 88.1% ammonia removal was achieved. Increasing the HRT, air flow rate, and temperature increased the ammonia removal efficiency. Later the ammonia stripping process in the continuous flow JLR was modeled and the volumetric mass transfer coefficient (KLa) for each parameter was calculated from the model equation. While the experimental parameters of air flow rate and temperature had a significant effect on the mass transfer coefficient, influent ammonia concentration and HRT were determined to have no effect.
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Affiliation(s)
- Nejdet Değermenci
- Faculty of Architecture and Engineering, Department of Environmental Engineering, Kastamonu University, Kastamonu, Turkey.
| | - Ergun Yildiz
- Faculty of Engineering, Department of Environmental Engineering, Atatürk University, Erzurum, Turkey
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62
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Lv P, Meng R, Mao Z, Deng M. Hydrothermal Synthesis of Sodalite-Type N-A-S-H from Fly Ash to Remove Ammonium and Phosphorus from Water. MATERIALS 2021; 14:ma14112741. [PMID: 34067370 PMCID: PMC8196996 DOI: 10.3390/ma14112741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/16/2021] [Accepted: 05/18/2021] [Indexed: 11/16/2022]
Abstract
In this study, the hydrated sodium aluminosilicate material was synthesized by one-step hydrothermal alkaline desilication using fly ash (FA) as raw material. The synthesized materials were characterized by XRD, XRF, FT-IR and SEM. The characterization results showed that the alkali-soluble desilication successfully had synthesized the sodium aluminosilicate crystalline (N-A-S-H) phase of sodalite-type (SOD), and the modified material had good ionic affinity and adsorption capacity. In order to figure out the suitability of SOD as an adsorbent for the removal of ammonium and phosphorus from wastewater, the effects of material dosing, contact time, ambient pH and initial solute concentration on the simultaneous removal of ammonium and phosphorus are investigated by intermittent adsorption tests. Under the optimal adsorption conditions, the removal rate of ammonium was 73.3%, the removal rate of phosphate was 85.8% and the unit adsorption capacity reached 9.15 mg/L and 2.14 mg/L, respectively. Adsorption kinetic studies showed that the adsorption of ammonium and phosphorus by SOD was consistent with a quasi-secondary kinetic model. The adsorption isotherm analysis showed that the equilibrium data were in good agreement with the Langmuir and Freundlich model. According to thermodynamic calculations, the adsorption of ammonium and phosphorus was found to be a heat-absorbing and spontaneous process. Therefore, the preparation of SOD by modified FA has good adsorption properties as adsorbent and has excellent potential for application in the removal of contaminants from wastewater.
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Affiliation(s)
- Pengcheng Lv
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China; (P.L.); (Z.M.)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Ruihong Meng
- Guodian New Energy Technology Research Institute Co., Ltd., Beijing 102209, China;
| | - Zhongyang Mao
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China; (P.L.); (Z.M.)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Min Deng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211800, China; (P.L.); (Z.M.)
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211800, China
- Correspondence: ; Tel.: +86-136-0518-4865
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63
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Tang J, Cao X, Qiu G, deMello A, Wang J. Optical-Switch-Enabled Microfluidics for Sensitive Multichannel Colorimetric Analysis. Anal Chem 2021; 93:6784-6791. [PMID: 33877822 DOI: 10.1021/acs.analchem.1c00674] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The implementation of colorimetric analysis within microfluidic environments engenders significant benefits with respect to reduced sample and reagent consumption, system miniaturization, and real-time measurement of flowing samples. That said, conventional approaches to colorimetric analysis within microfluidic channels are hampered by short optical pathlengths and single-channel configurations, which lead to poor detection sensitivities and low analytical throughputs. Although the use of multiplexed light source/photodetector modules allows for multichannel analysis, such configurations significantly increase both instrument complexity and cost. To address these issues, we present a four-channel colorimetric measurement scheme within an optical-switch-enabled microfluidic chip (OSEMC) fabricated by two-photon stereolithography. The integration of optical switches enables sequential signal readout from each detection channel, and thus, only a single light source and a photodetector are required for operation. Optical switches can be controlled in a bespoke manner by changing the medium in the switch channel between a "light-transmitting" fluid and a "light-blocking" fluid using pneumatic microvalves. Such optical switches are characterized by fast response times (approximately 200 ms), tunable switching frequencies (between 0.1 and 1.0 Hz studied), and excellent stability. Operational performance demonstrates both good sensitivity and reproducibility through the colorimetric analysis of nitrite and ammonium samples using four detection channels. Furthermore, the use of OSEMC for parallel and real-time analysis of flowing samples is investigated via characterization of the adsorption kinetics of tartrazine on activated charcoal and the catalytic reaction kinetics of horseradish peroxidase (HRP).
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Affiliation(s)
- Jiukai Tang
- Institute of Environmental Engineering, ETH Zürich, Zürich 8093, Switzerland.,Laboratory for Advanced Analytical Technologies, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Xiaobao Cao
- Institute of Chemical and Bioengineering, ETH Zürich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland
| | - Guangyu Qiu
- Institute of Environmental Engineering, ETH Zürich, Zürich 8093, Switzerland.,Laboratory for Advanced Analytical Technologies, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
| | - Andrew deMello
- Institute of Chemical and Bioengineering, ETH Zürich, Vladimir Prelog Weg 1, Zürich 8093, Switzerland
| | - Jing Wang
- Institute of Environmental Engineering, ETH Zürich, Zürich 8093, Switzerland.,Laboratory for Advanced Analytical Technologies, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf 8600, Switzerland
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Adithya S, Jayaraman RS, Krishnan A, Malolan R, Gopinath KP, Arun J, Kim W, Govarthanan M. A critical review on the formation, fate and degradation of the persistent organic pollutant hexachlorocyclohexane in water systems and waste streams. CHEMOSPHERE 2021; 271:129866. [PMID: 33736213 DOI: 10.1016/j.chemosphere.2021.129866] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/23/2021] [Accepted: 02/03/2021] [Indexed: 05/05/2023]
Abstract
The environmental impacts of persistent organic pollutants (POPs) is an increasingly prominent topic in the scientific community. POPs are stable chemicals that are accumulated in living beings and can act as endocrine disruptors or carcinogens on prolonged exposure. Although efforts have been taken to minimize or ban the use of certain POPs, their use is still widespread due to their importance in several industries. As a result, it is imperative that POPs in the ecosystem are degraded efficiently and safely in order to avoid long-lasting environmental damage. This review focuses on the degradation techniques of hexachlorocyclohexane (HCH), a pollutant that has strong adverse effects on a variety of organisms. Different technologies such as adsorption, bioremediation and advanced oxidation process have been critically analyzed in this study. All 3 techniques have exhibited near complete removal of HCH under ideal conditions, and the median removal efficiency values for adsorption, bioremediation and advanced oxidation process were found to be 80%, 93% and 82% respectively. However, it must be noted that there is no ideal HCH removal technique and the selection of removal method depends on several factors. Furthermore, the fates of HCH in the environment and challenges faced by HCH degradation have also been explained in this study. The future scope for research in this field has also received attention.
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Affiliation(s)
- Srikanth Adithya
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Ramesh Sai Jayaraman
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Abhishek Krishnan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Rajagopal Malolan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Kannappan Panchamoorthy Gopinath
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Jayaseelan Arun
- Centre for Waste Management, International Research Centre, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai, 600119, Tamil Nadu, India
| | - Woong Kim
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, Daegu, South Korea.
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65
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Benekos AK, Tsigara M, Zacharakis S, Triantaphyllidou IE, Tekerlekopoulou AG, Katsaounis A, Vayenas DV. Combined electrocoagulation and electrochemical oxidation treatment for groundwater denitrification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 285:112068. [PMID: 33581453 DOI: 10.1016/j.jenvman.2021.112068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Electrocoagulation (EC) with an aluminum electrode arrangement as anode-cathode was applied to denitrify groundwater and electrooxidation (EO) was examined as a post-treatment step to remove the produced by-products. Initially, EC experiments were performed under batch operating mode using artificially-polluted tap water to investigate the effects of initial pH (5.5, 7.5, 8.5), initial NO3--N concentration (25, 35, 45, 55 mg L-1) and applied current density (10, 20 mA cm-2) on process efficiency. The effect of initial solution pH on ammonium cation concentration was also investigated as their generation (as a by-product) is the main drawback preventing wide-scale application of these treatment processes. Experimental results revealed high nitrate removal percentages (up to 96.3%) for initial pH 7.5 and all initial concentrations and current densities, while the final ammonium concentrations ranged between 5.3 and 9.2 mg NH4+-N L-1 (for initial NO3--N of 25 mg L-1). Therefore, EO was examined to oxidize the ammonium cations to nitrogen gas on iridium oxide coated titanium electrodes (IrO2/Ti) anode surface. The effects of cathode material (aluminum, stainless steel), total current density and anode surface area (3.3-30 mA cm-2 and 12-36 cm2, respectively) were investigated, and lead to NH4+-N percentage removals of between 25% (10 mA cm-2, 12 cm2) and 100% (30 mA cm-2, 24 cm2) for an initial NH4+-N concentration of 10 mg L-1. The optimum EC (20 mA cm-2, natural initial pH 7.5-7.8) and EO parameters (30 mA cm-2, 24 cm2 surface area anode, Al cathode) were combined into a hybrid system to treat two real nitrate-polluted groundwaters with initial NO3--N concentrations of 25 and 75 mg L-1. Results revealed that the proposed hybrid treatment system can be used to efficiently remove nitrate from groundwaters.
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Affiliation(s)
- Andreas K Benekos
- Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece
| | - Maria Tsigara
- Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece
| | - Stergios Zacharakis
- Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece
| | | | | | - Alexandros Katsaounis
- Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece
| | - Dimitris V Vayenas
- Department of Chemical Engineering, University of Patras, Rio, GR-26504, Patras, Greece; Institute of Chemical Engineering Sciences (ICE-HT), Stadiou Str., Platani, GR-26504, Patras, Greece.
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66
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Cruz H, Yap Gabon M, Salehin S, Seviour T, Laycock B, Pikaar I. Magnetic poly(acrylic acid)-based hydrogels for rapid ammonium sorption and efficient sorbent separation from sewage. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2021; 6:100097. [PMID: 36159177 PMCID: PMC9488083 DOI: 10.1016/j.ese.2021.100097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 06/16/2023]
Abstract
Ammonium sorption and recovery processes typically take place in conventional packed columns, with a configuration that enables maximum sorption by the sorbents. However, batch or semi-continuous operations in packed columns have associated issues such as scaling and frequent backwashing requirements, which are economically prohibitive. As an alternative, ammonium sorption could occur in well-mixed continuously stirred tanks, which would allow for the ammonium sorption process to be retrofitted in existing wastewater treatment plants, provided that efficient sorbent separation can be achieved. This study demonstrates, for the first time, the preparation of magnetic poly(acrylic acid)-based (PAA) ammonium sorbents through the incorporation of magnetic (Fe3O4) nanoparticles (MNP) produced via scalable and cost-effective electrochemical synthesis. The MNP and PAA hydrogels were synthesized independently and the MNPs subsequently integrated into the PAA hydrogel network by particle diffusion and physical entrapment. No adverse effects on swelling and ammonium sorption following immersion in either synthetic or real sewage were observed after MNPs were incorporated into the hydrogels. Importantly, PAA-MNP hydrogels demonstrated high ammonium sorption efficiencies (80-93%) in real sewage and achieved rapid ammonium recovery of 73 ± 1.1% within 15 min of mild acid washing (pH 4) 15 min at a maximum recovery.
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Affiliation(s)
- Heidy Cruz
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
- Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, Singapore, 117576, Singapore
| | - Miriam Yap Gabon
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Sirajus Salehin
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
- Advanced Water Management Center, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Thomas Seviour
- WATEC Aarhus University Centre for Water Technology, Nørrebrogade 44, Bldg 1783, 8000, Aarhus, Denmark
| | - Bronwyn Laycock
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Ilje Pikaar
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
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67
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Masood MI, Hauke NT, Nasim MJ, Sarfraz M, Naseem M, Schäfer KH. Neural stem cell-based in vitro bioassay for the assessment of neurotoxic potential of water samples. J Environ Sci (China) 2021; 101:72-86. [PMID: 33334539 DOI: 10.1016/j.jes.2020.07.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 07/26/2020] [Accepted: 07/31/2020] [Indexed: 06/12/2023]
Abstract
Intensive agriculture activities, industrialization and growing numbers of wastewater treatment plants along river banks collectively contribute to the elevated levels of neurotoxic pollutants in natural water reservoirs across Europe. We established an in vitro bioassay based upon neural stem cells isolated from the subventricular zone of the postnatal mouse to evaluate the neurotoxic potential of raw wastewater, treated sewage effluent, groundwater and drinking water. The toxic potential of water samples was evaluated employing viability, proliferation, differentiation and migration assays. We found that raw wastewater could reduce the viability and proliferation of neural stem cells, and decreased the neuronal and astrocyte differentiation, neuronal neurite growth, astrocyte growth and cell migration. Treated sewage water also showed inhibitory effects on cell proliferation and migration. Our results indicated that relatively high concentrations of nitrogenous substances, pesticides, mercuric compounds, bisphenol-A, and phthalates, along with some other pollutants in raw wastewater and treated sewage water, might be the reason for the neuroinhibitory effects of these water samples. Our model successfully predicted the neurotoxicity of water samples collected from different sources and also revealed that the incomplete removal of contaminants from wastewater can be problematic for the developing nervous system. The presented data also provides strong evidence that more effective treatments should be used to minimize the contamination of water before release into major water bodies which may be considered as water reservoirs for human usage in the future.
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Affiliation(s)
- Muhammad Irfan Masood
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany; ENS Group, University of Applied Sciences Kaiserslautern, 66482 Zweibrücken, Germany; Institute of Pharmaceutical Sciences, University of Veterinary and Animal Sciences, 54000 Lahore, Pakistan.
| | - Natalie Tamara Hauke
- Applied Life Sciences, University of Applied Sciences Kaiserslautern, 66482 Zweibrücken, Germany; Abwasserverband Bergstrasse, Altau 10, 69469 Weinheim, Germany
| | - Muhammad Jawad Nasim
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | - Muhammad Sarfraz
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | - Mahrukh Naseem
- Department of Zoology, University of Balochistan, Quetta 87550, Pakistan
| | - Karl Herbert Schäfer
- ENS Group, University of Applied Sciences Kaiserslautern, 66482 Zweibrücken, Germany.
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68
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Photocatalytic Selective Oxidation of Ammonia in a Semi-Batch Reactor: Unravelling the Effect of Reaction Conditions and Metal Co-Catalysts. Catalysts 2021. [DOI: 10.3390/catal11020209] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Photocatalysis has been used for the oxidation of ammonia/ammonium in water. A semibatch photoreactor was developed for this purpose, and nanostructured TiO2-based materials, either commercial P25 or prepared by flame spray pyrolysis (FSP), were used as catalysts. In the present work, we investigated the effect of (i) metal co-catalysts, (ii) pH, and (iii) ammonia concentration on the efficiency of oxidation and on the selectivity to the undesired overoxidation byproduct, i.e., nitrites and nitrates. Several metals were added to both titania samples, and the physicochemical properties of every sample were studied by XRD, BET, and UV-Vis spectroscopy. The pH, which was investigated in the range of 2.5–11.5, was the most important parameter. The optimum pH values, resulted as 11.5 and 4.8 for P25 and FSP respectively, matching the best compromise between an acceptable conversion and a limited selectivity toward nitrite and nitrate formation. For both titania samples (P25 and FSP), ammonia conversion vs. nitrite and nitrate formation were highly dependent on the pH. At pH ≥ 9, the initial rate of photooxidation was high, with selective formation of overoxidized byproducts, whereas, at a more acidic pH, the conversion was lower, but the selectivity toward nitrogen formation was higher. P25 samples added with noble metal co-catalysts (0.1 mol% Ag, Au, Pd, Pt) at pH = 11.5 remarkably increased the selectivity to nitrite and nitrate, while, in the case of FSP samples (pH = 4.8), the co-catalysts increased the selectivity toward N2 with respect to the unpromoted catalyst and also the conversion in the case of Au and Pt. Reactivity was discussed, leading to the proposing of a mechanism that correlates the activity with either surface adsorption (depending of the surface charge of the catalyst and on pH) or the homogeneous reactivity of oxidizing species.
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69
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Ammonium Utilization in Microalgae: A Sustainable Method for Wastewater Treatment. SUSTAINABILITY 2021. [DOI: 10.3390/su13020956] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In plant cells, ammonium is considered the most convenient nitrogen source for cell metabolism. However, despite ammonium being the preferred N form for microalgae, at higher concentrations, it can be toxic, and can cause growth inhibition. Microalgae’s tolerance to ammonium depends on the species, with various taxa showing different thresholds of tolerability and symptoms of toxicity. In the environment, ammonium at high concentrations represents a dangerous pollutant. It can affect water quality, causing numerous environmental problems, including eutrophication of downstream waters. For this reason, it is important to treat wastewater and remove nutrients before discharging it into rivers, lakes, or seas. A valid and sustainable alternative to conventional treatments could be provided by microalgae, coupling the nutrient removal from wastewater with the production of valuable biomass. This review is focused on ammonium and its importance in algal nutrition, but also on its problematic presence in aquatic systems such as wastewaters. The aim of this work is to provide recent information on the exploitation of microalgae in ammonium removal and the role of ammonium in microalgae metabolism.
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70
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Treatment of Wastewaters by Microalgae and the Potential Applications of the Produced Biomass—A Review. WATER 2020. [DOI: 10.3390/w13010027] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The treatment of different types of wastewater by physicochemical or biological (non-microalgal) methods could often be either inefficient or energy-intensive. Microalgae are ubiquitous microscopic organisms, which thrive in water bodies that contain the necessary nutrients. Wastewaters are typically contaminated with nitrogen, phosphorus, and other trace elements, which microalgae require for their cell growth. In addition, most of the microalgae are photosynthetic in nature, and these organisms do not require an organic source for their proliferation, although some strains could utilize organics both in the presence and absence of light. Therefore, microalgal bioremediation could be integrated with existing treatment methods or adopted as the single biological method for efficiently treating wastewater. This review paper summarized the mechanisms of pollutants removal by microalgae, microalgal bioremediation potential of different types of wastewaters, the potential application of wastewater-grown microalgal biomass, existing challenges, and the future direction of microalgal application in wastewater treatment.
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71
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An Q, Zhou Y, Zhao B, Huang XL. Efficient ammonium removal through heterotrophic nitrification-aerobic denitrification by Acinetobacter baumannii strain AL-6 in the presence of Cr(VI). J Biosci Bioeng 2020; 130:622-629. [DOI: 10.1016/j.jbiosc.2020.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/25/2020] [Accepted: 07/13/2020] [Indexed: 11/25/2022]
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72
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Al-Sheikh F, Moralejo C, Pritzker M, Anderson WA, Elkamel A. Ammonia removal from real wastewater using a LEWATIT S 108 H resin: A batch process and fixed-bed column. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2019.1655457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Farooq Al-Sheikh
- Department of Chemical Engineering, University of Technology, Baghdad, Iraq
| | - Carol Moralejo
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Mark Pritzker
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - William A. Anderson
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Ali Elkamel
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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Clark B, Tarpeh WA. Selective Recovery of Ammonia Nitrogen from Wastewaters with Transition Metal-Loaded Polymeric Cation Exchange Adsorbents. Chemistry 2020; 26:10099-10112. [PMID: 32500617 DOI: 10.1002/chem.202002170] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/02/2020] [Indexed: 11/08/2022]
Abstract
Extracting valuable products from wastewaters with nitrogen-selective adsorbents can offset energy-intensive ammonia production, rebalance the nitrogen cycle, and incentivize environmental remediation. Separating nitrogen (N) as ammonium from other wastewater cations (e.g., K+ , Ca2+ ) presents a major challenge to N removal from wastewater and N recovery as high-purity products. High selectivity and capacity were achieved through ligand exchange of ammonia with ammine-complexing transition metals loaded onto polymeric cation exchange resins. Compared to commercial resins, metal-ligand exchange adsorbents exhibited higher ammonia removal capacity (8 mequiv g-1 ) and selectivity (N/K+ equilibrium selectivity of 10.1) in binary equimolar solutions. Considering optimal ammonia concentrations (200-300 mequiv L-1 ) and pH (9-10) for metal-ligand exchange, hydrolyzed urine was identified as a promising candidate for selective TAN recovery. However, divalent cation exchange increased transition metal elution and reduced ammonia adsorption. Ultimately, metal-ligand exchange adsorbents can advance nitrogen-selective separations from wastewaters.
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Affiliation(s)
- Brandon Clark
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - William A Tarpeh
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.,Engineering Research Center for, Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt), Stanford, CA, 94305, USA
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74
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Cruz H, Laycock B, Strounina E, Seviour T, Oehmen A, Pikaar I. Modified Poly(acrylic acid)-Based Hydrogels for Enhanced Mainstream Removal of Ammonium from Domestic Wastewater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:9573-9583. [PMID: 32551594 DOI: 10.1021/acs.est.9b07032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Rapid and continuous ammonium adsorption from mainstream coupled with side-stream ammonium recovery and adsorbent regeneration could enable ammonium recovery from domestic wastewater. This study describes the use of tailored poly(acrylic acid)-based (NaPAA) hydrogels as effective sorbents for ammonium removal from domestic wastewater. Modified NaPAA hydrogels having 60% ionization and 4.8 mol % N',N'-methylenebisacrylamide as the cross-linker reduced the overall swelling by 92% from 407 to 31 g/g because of higher cross-linking density. At hydrogel loadings of 2.5-7.5 g/L, the NaPAA hydrogels achieved ammonium concentrations of 8.3 ± 0.6 to 10.1 ± 0.1 mg/L NH4-N, which corresponds to removal efficiencies of 53-77% after 10 min of contact time in real domestic wastewater. At the same hydrogel loadings, the ammonium removal efficiency of NaPAA hydrogels in synthetic wastewater was found to be comparable to that in real sewage (71% vs 69%, respectively), suggesting that the sorption performance is only marginally affected by organic constituents found in domestic wastewater. In addition, the NaPAA hydrogels removed 25-51% ammonium in 10 min from synthetic streams having 200-400% higher ionic strengths than those commonly observed in sewage. Furthermore, simulation studies showed that a discharge concentration of ∼1.9 mg/L NH4-N, well below the commonly applied discharge limits in most regions, can be achieved using mainstream ammonium removal by NaPAA hydrogels followed by biological assimilation from the growth of ordinary heterotrophic organisms.
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Affiliation(s)
- Heidy Cruz
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Bronwyn Laycock
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Ekaterina Strounina
- Center for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Thomas Seviour
- Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, 637551, Singapore
| | - Adrian Oehmen
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Ilje Pikaar
- School of Civil Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
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75
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Vikrant K, Kim KH, Dong F, Giannakoudakis DA. Photocatalytic Platforms for Removal of Ammonia from Gaseous and Aqueous Matrixes: Status and Challenges. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02163] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
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76
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Fu H, Li Y, Yu Z, Shen J, Li J, Zhang M, Ding T, Xu L, Lee SS. Ammonium removal using a calcined natural zeolite modified with sodium nitrate. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122481. [PMID: 32197199 DOI: 10.1016/j.jhazmat.2020.122481] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Ammonium is one of the key factors responsible for the eutrophication of water bodies. The purpose of this study was to remove ammonium from water using a natural zeolite (NZ) modified with sodium nitrate (NaNO3) by impregnation and calcination. The ability of the NZ to remove ammonium from water was determined by single calcination; however, its efficiency was significantly enhanced by impregnation with a NaNO3 solution. Zeolite modified with 3.00 M NaNO3 and calcination at 673 K yielded the best ammonium removal efficiency, which was 39.88 % higher than the NZ alone. The zeolites that were regenerated over six times maintained a removal rate of 79.35-84.79 % by mixing 25.0 mg of the NZ into 50 mL of a 5.0 mg/L ammonium solution. The improved performance of the modified zeolite (qm, 16.96 mg/g) was mainly attributed to its relatively elevated mesopore volumes and higher ion-exchange capacity that results from nitrate decomposition, oxygen release, and sodium-ion exchange. The adsorption kinetics and isotherms are best described by the pseudo-first-order (PFO) and Freundlich model, respectively, and the process was endothermic. The effects of other factors, including coexisting ions, pH, and dosage, on ammonium adsorption were also determined.
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Affiliation(s)
- Hailu Fu
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China.
| | - Yi Li
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Ziyao Yu
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Jialing Shen
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Jinye Li
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Ming Zhang
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Tao Ding
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Liheng Xu
- Department of Environmental Engineering, China Jiliang University, Hangzhou, 310018, China
| | - Sang Soo Lee
- Department of Environmental Engineering, Yonsei University, Wonju, 26493, Republic of Korea.
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77
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Yu B, Liu C, Wang S, Wang W, Zhao S, Zhu G. Applying constructed wetland-microbial electrochemical system to enhance NH 4+ removal at low temperature. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138017. [PMID: 32408426 DOI: 10.1016/j.scitotenv.2020.138017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 06/11/2023]
Abstract
NH4+ removal at low temperature (<10 °C) has baffled researchers and engineers for decades. Bioelectrochemical process has been increasingly valued as a promising approach to enhance NH4+ removal by both electrochemical and stimulated microbial processes. The feasibility and the mechanism of enhanced NH4+ removal were investigated in Constructed Wetland-Microbial Electrochemical System (CW-MES) with different electrode spacings including Constructed Wetland-Microbial Fuel Cell (CW-MFC) and Constructed Wetland-Microbial Electrolysis Cell (CW-MEC) at low temperature. Solar cell panel was firstly implemented in CW-MEC to enhance NH4+ removal. The low-temperature operation lasted for about four months, CW-MEC successfully enhanced NH4+ removal while CW-MFC did not exhibit positive effect. The NH4+-N removal efficiency of CW-MEC achieved 88.2 ± 7.0%, which was 11.7 ± 6.5% higher than conventional constructed wetland (CCW). The maximum NH4+-N removal efficiency of CW-MEC achieved 100%. The average NH4+-N mass removal rate was 436.02 mg m-2 d-1. It was found that NH4+ was mainly removed by the nitrification-autotrophic denitrification process in CW-MES while it was mainly converted to NO3- in CCW. Ammoxidation and denitrification were both enhanced by electricity while NH4+ was used as the main substrate for electricity generation. AOA (Candidatus Nitrosocosmicus) and NOB (Nitrospira) were the main contributors to nitrification. This study provided a cost-effective and sustainable method for electrochemically enhanced microbial NH4+ removal at low-temperature and revealed the relevant mechanism.
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Affiliation(s)
- Bin Yu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chunlei Liu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Shanyun Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Weidong Wang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Siyan Zhao
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibing Zhu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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78
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Li I, Huang G, Tsai C, Chen Y, Hong M, Tsai T. Ammonium nitrogen adsorption from aqueous solution by poly(sodium acrylate)s: Effect on the amount of crosslinker and initiator. J Appl Polym Sci 2020. [DOI: 10.1002/app.49581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- I‐Chi Li
- Department of Chemical and Materials Engineering, Jiangong Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
| | - Guan‐Wei Huang
- Department of Chemical and Materials Engineering, Jiangong Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
| | - Cheng‐Hsien Tsai
- Department of Chemical and Materials Engineering, Jiangong Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
| | - Yung‐Chung Chen
- Department of Chemical and Materials Engineering, Jiangong Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
- Photo‐SMART (Photo‐sensitive Material Advanced Research and Technology Center) National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
| | - Ming‐Chang Hong
- Department of Graduate Institute of Aquaculture, Nanzih Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
| | - Tsung‐Yueh Tsai
- Department of Safety, Health and Environmental Engineering, First Campus National Kaohsiung University of Science and Technology Kaohsiung City Taiwan
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79
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Xian L, Zhang Y, Cao Y, Wan T, Gong Y, Dai C, Ochieng WA, Nasimiyu AT, Li W, Liu F. Glutamate dehydrogenase plays an important role in ammonium detoxification by submerged macrophytes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 722:137859. [PMID: 32182513 DOI: 10.1016/j.scitotenv.2020.137859] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/09/2020] [Accepted: 03/10/2020] [Indexed: 06/10/2023]
Abstract
Ammonium is a paradoxical chemical because it is a nutrient but also damages ecosystems at high concentration. As the most eco-friendly method of water restoration, phytoremediation technology still faces great challenges. To provide more theoretical support, we exploited six common submerged macrophytes and selected the most ammonium-tolerant and -sensitive species; then further explored and compared the mechanisms underlying ammonium detoxification. Our results showed the activity of glutamate dehydrogenase (GDH) in the ammonium-tolerant species Myriophyllum spicatum leaves performed a dose-response curve (increased 169% for NADH-dependent GDH and 103% for NADPH-dependent GDH) with the [NH4+-N] increasing from 0 to 100 mg/L while glutamine synthetase (GS) activity slightly changed. But for the ammonium-sensitive species, Potamogeton lucens, the activity of GDH recorded no major changes, while the GS increased slightly (17%). Based on this, we conclude that the alternative pathway of GDH is more important than the pathway catalyzed by GS in determining the tolerance of submerged macrophytes to high ammonium concentration (up to 100 mg N/L). Our present study identifies submerged macrophytes that are tolerant of high concentrations of ammonium and provides mechanistic support for practical water restoration by aquatic plants.
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Affiliation(s)
- Ling Xian
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, PR China; University of the Chinese Academy of Sciences, Beijing, 100049, Beijing, PR China
| | - Yizhi Zhang
- NHC Key Laboratory of Drug Addiction Medicine, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, 650032, PR China.
| | - Yu Cao
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, PR China
| | - Tao Wan
- Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China; Key Laboratory of Southern Subtropical Plant Diversity, Fairy Lake Botanical Garden, Shenzhen & Chinese Academy of Science, Shenzhen 518004, PR China
| | - Yanbing Gong
- State Key Laboratory of Hybrid Rice, Department of Ecology, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Can Dai
- School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China
| | - Wyckliffe Ayoma Ochieng
- Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China; University of the Chinese Academy of Sciences, Beijing, 100049, Beijing, PR China
| | - Annah Timinah Nasimiyu
- Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China; University of the Chinese Academy of Sciences, Beijing, 100049, Beijing, PR China
| | - Wei Li
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, PR China
| | - Fan Liu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, PR China; Sino-Africa Joint Research Centre, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China.
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80
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The Adsorption of Ammonium Nitrogen from Milking Parlor Wastewater Using Pomegranate Peel Powder for Sustainable Water, Resources, and Waste Management. SUSTAINABILITY 2020. [DOI: 10.3390/su12124880] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Agricultural wastewater poses serious risks to the environment due to how it is injudiciously used and managed. We investigated the use of pomegranate peel powder (PPP) to adsorb ammonium ions from milking parlor wastewater, which is applied as a nitrogen source for cropland fertilization despite its environmental ramifications. As a valueless by-product of juice and jam industries, PPP shows promising features and characteristics as a potential bio-adsorbent for ammonium nitrogen removal and recovery. The surface characterization of PPP was performed by zeta potential measurement and attenuated total reflectance Fourier transform infrared Spectroscopy (ATR-FTIR) analysis. The adsorption studies were carried out by batch experiments where the initial ammonium nitrogen (NH4–N) concentration of studied wastewater was 80 mg/L. The effects of different operational parameters, such as pH, adsorbent dose, contact time, stirring speed, and temperature, were investigated. From kinetic studies, the equilibrium time was found to be 120 min, achieving an 81.8% removal synonym of ~2.5 mg/g NH4–N uptake. The adsorption isotherm data fitted well with Langmuir model with correlation (R2) > 0.99. Meanwhile, the kinetics followed pseudo-second order model with correlation (R2) > 0.99.
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81
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82
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Qin Y, Zhu X, Su Q, Anumah A, Gao B, Lyu W, Zhou X, Xing Y, Wang B. Enhanced removal of ammonium from water by ball-milled biochar. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:1579-1587. [PMID: 31782042 DOI: 10.1007/s10653-019-00474-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 11/14/2019] [Indexed: 05/12/2023]
Abstract
Novel biochar was prepared by ball milling using bamboo as raw material. The aim of this study was to find a good alternative way to improve the potentials of biochar for ammonium adsorption from aqueous solution. The sorption performance of ball-milled bamboo biochar (BMBB) was compared with that of bamboo biochar (BB) using batch adsorption experiments. Different adsorption kinetics models proved that the pseudo-second order was the best kinetic model for explanation of the adsorption kinetics characteristics, indicative of the energetically heterogeneous solid surface of the biochar. The Langmuir model could fit the isothermal adsorption data of BMBB well. The maximum adsorption capacity of BMBB (22.9 mg g-1) was much higher than that of BB (7.0 mg g-1). This study offers a relatively cost-effective and efficient methodology for the improvement in the adsorption capacity of biochar for ammonium nitrogen.
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Affiliation(s)
- Yongjun Qin
- Appraisal Center for Ecology and Environment Engineering of Chongqing, Chongqing, 401121, China
- Management and Service Center for Solid Waste of Chongqing, Chongqing, 401121, China
| | - Xiaolong Zhu
- Appraisal Center for Ecology and Environment Engineering of Chongqing, Chongqing, 401121, China.
- Management and Service Center for Solid Waste of Chongqing, Chongqing, 401121, China.
| | - Qing Su
- Appraisal Center for Ecology and Environment Engineering of Chongqing, Chongqing, 401121, China
| | - Abdulraheem Anumah
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Wenqiang Lyu
- Institute of Guizhou Mountain Resources, Guizhou Academy of Sciences, Guiyang, 550001, China
| | - Xue Zhou
- School of Chemistry and Materials Science, Guizhou Normal University, Guiyang, 550001, China
| | - Ying Xing
- School of Chemistry and Materials Science, Guizhou Normal University, Guiyang, 550001, China
| | - Bing Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
- Puding Karst Ecosystem Research Station, State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Puding, 562100, China.
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83
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Mohtar SS, Sharuddin SSN, Saman N, Lye JWP, Othman NS, Mat H. A simultaneous removal of ammonium and turbidity via an adsorptive coagulation for drinking water treatment process. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:20173-20186. [PMID: 32236809 DOI: 10.1007/s11356-019-06507-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/10/2019] [Indexed: 06/11/2023]
Abstract
The utilization of natural zeolite (NZ) as an adsorbent for NH4+ removal was investigated. Three types of NZ (i.e., NZ01, NZ02, and NZ03) were characterized, and their NH4+ adsorption process in aqueous solution was evaluated. The effect of pH towards NH4+ adsorption showed that the NZ01 has the highest NH4+ adsorption capacity compared with other natural zeolites used. The application of NZ01 for a simultaneous removal of NH4+ and turbidity in synthetic NH4+-kaolin suspension by adsorptive coagulation process for treating drinking water was studied. The addition of NZ01 into the system increased the NH4+ removal efficiency (ηNH4+) from 11.64% without NZ01 to 41.86% with the addition of 0.2 g L-1 of NZ01. The turbidity removal (ηT), however, was insignificantly affected since the ηT was already higher than 98.0% over all studied parameter's ranges. The thermodynamic and kinetic data analyses suggested that the removal of NH4+ obeyed the Temkin isotherm model and pseudo-second-order kinetic model, respectively. Generally, the turbidity removal was due to the flocculation of destabilized solid particles by alum in the suspension system. The ηNH4+ in surface water was 29.31%, which is lower compared with the removal in the synthetic NH4+-kaolin suspension, but a high ηT (98.65%) was observed. It was found that the addition of the NZ01 could enhance the removal of NH4+ as well as other pollutants in the surface water.
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Affiliation(s)
- Safia Syazana Mohtar
- Advanced Materials and Process Engineering Laboratory, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Siti Shilatul Najwa Sharuddin
- Advanced Materials and Process Engineering Laboratory, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Norasikin Saman
- Advanced Materials and Process Engineering Laboratory, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Jimmy Wei Ping Lye
- Advanced Materials and Process Engineering Laboratory, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Nurul Sakinah Othman
- Department of Chemical Engineering, School of Science and Engineering, Manipal International University (MIU), 71800, Nilai, Negeri Sembilan, Malaysia
| | - Hanapi Mat
- Advanced Materials and Process Engineering Laboratory, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
- Advanced Materials and Separation Technologies (AMSET) Research Group, Health and Wellness Research Alliance, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia.
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84
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Characterization of Acid-Aged Biochar and its Ammonium Adsorption in an Aqueous Solution. MATERIALS 2020; 13:ma13102270. [PMID: 32423092 PMCID: PMC7287775 DOI: 10.3390/ma13102270] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 11/17/2022]
Abstract
According to its characteristics, biochar originating originating from biomass is accepted as a multifunctional carbon material that supports a wide range of applications. With the successfully used in reducing nitrate and adsorbing ammonium, the mechanism of biochar for nitrogen fixation in long-term brought increasing attention. However, there is a lack of analysis of the NH4+-N adsorption capacity of biochar after aging treatments. In this study, four kinds of acid and oxidation treatments were used to simulate biochar aging conditions to determine the adsorption of NH4+-N by biochar under acidic aging conditions. According to the results, acid-aged biochar demonstrated an enhanced maximum NH4+-N adsorption capacity of peanut shell biochar (PBC) from 24.58 to 123.28 mg·g−1 after a H2O2 modification. After the characteristic analysis, the acid aging treatments, unlike normal chemical modification methods, did not significantly change the chemical properties of the biochar, and the functional groups and chemical bonds on the biochar surface were quite similar before and after the acid aging process. The increased NH4+-N sorption ability was mainly related to physical property changes, such as increasing surface area and porosity. During the NH4+ sorption process, the N-containing functional groups on the biochar surface changed from pyrrolic nitrogen to pyridinic nitrogen, which showed that the adsorption on the surface of the aged biochar was mainly chemical adsorption due to the combination of π-π bonds in the sp2 hybrid orbital and a hydrogen bonding effect. Therefore, this research establishes a theoretical basis for the agricultural use of aged biochar.
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85
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Fabrication of zeolite NaX-doped electrospun porous fiber membrane for simultaneous ammonium recovery and organic carbon enrichment. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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86
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Mahdy AM, Salem MZM, Ali AM, Ali HM. Optimum Operating Conditions for the Removal of Phosphate from Water Using of Wood-Branch Nanoparticles from Eucalyptus camaldulensis. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1851. [PMID: 32326476 PMCID: PMC7216075 DOI: 10.3390/ma13081851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 11/28/2022]
Abstract
A batch bio-sorption experiment was conducted on Eucalyptus camaldulensis Dehnh. wood-branch in the form of woody sawdust nanoparticles (nSD-KF) to evaluate their potential efficiency as phosphate bio-sorption capacity. The operating parameters of phosphate bio-sorption including contact time, initial concentration, pH, temperature, dosage, size, competing ion, and the possible mechanisms responsible for phosphate removal from water were investigated. The nSD-KF were green-synthesized by ball mill grinder and phosphate solutions with various concentrations were performed. The results revealed that the maximum adsorption capacity (qmax) value of nSD-KF was 50,000 µg/g. In addition, the removal efficiency of nSD-KF significantly increased with the increase of initial phosphate concentration, contact time, temperature, and dosage. However, it decreased with the increase of pH and in double-system solution with the presence of ammonium ions. At the application study, the nSD-KF successfully removed 87.82% and 92.09% of phosphate from real agricultural wastewater in a batch experiment and in a column experiment, respectively. Adsorption efficiency of nSD-KF for phosphate increased after the first and second regeneration cycles, but it decreased after the third and fourth cycles. The poor to moderate phosphate desorption from nSD-KF sorbent indicates the stability of phosphate bound to nSD-KF materials. Regardless, biodegradability of nSD-KF-loaded phosphate is possible, and it will be a good source of phosphate to a plant when added to the agricultural soil as a supplemental application of fertilizer. In conclusion, nSD-KF could be considered as a promising lignocellulosic biomaterial used for the removal of phosphate from waters as bio-sorption process.
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Affiliation(s)
- Ahmed M. Mahdy
- Department of Soil and Water Sciences, Faculty of Agriculture (EL-Shatby), Alexandria University, Alexandria 21545, Egypt; (A.M.M.); (A.M.A.)
| | - Mohamed Z. M. Salem
- Forestry and Wood Technology Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt
| | - Asmaa M. Ali
- Department of Soil and Water Sciences, Faculty of Agriculture (EL-Shatby), Alexandria University, Alexandria 21545, Egypt; (A.M.M.); (A.M.A.)
| | - Hayssam M. Ali
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
- Timber Trees Research Department, Sabahia Horticulture Research Station, Horticulture Research Institute, Agriculture Research Center, Alexandria 21526, Egypt
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87
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Preparation of modified Chinese medical stone and its performance on the removal of low-concentration ammonium from water. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-019-04058-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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88
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Shinzato MC, Wu LF, Mariano TO, Freitas JG, Martins TS. Mineral sorbents for ammonium recycling from industry to agriculture. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:13599-13616. [PMID: 32030588 DOI: 10.1007/s11356-020-07873-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
In tropical environments, nutrient-poor soils are commonly found, leading to high fertilizers application rates to support agricultural activities. In contrast, anthropogenic activities generate large amounts of effluents containing nitrogen. In this study, two minerals (natural zeolite and vermiculite) were tested to remove NH4+ from an industrial effluent with high pH and contents in Na+ and K+. Afterwards, they were tested as an alternative slow-release fertilizer in the soil. To verify the best conditions to adsorb NH4+, batch tests were conducted using synthetic solutions and an industrial effluent. In general, the efficiency of both minerals in removing NH4+ was high (85% for zeolite and almost 70% for vermiculite) as well as the ability to decrease the industrial effluent pH. In this process, more NH4+ and K+ ions were removed in comparison with Na+, which remained in solution. These minerals were tested as slow-release fertilizers by leaching with distilled water (both minerals releasing 2 mg L-1 NH4+) and with an acid solution (releasing 10 mg L-1 NH4+ from zeolite and 50 mg L-1 NH4+ from vermiculite-corresponding only to 12% of total NH4+ retained by zeolite and 29% by vermiculite). During the test of soil incubation with zeolite-NH4+, the NH4+ ions of the exchangeable sites were retained for a longer period, minimizing their loss by leaching and biological nitrification. Consequently, soil acidification was prevented. Therefore, both minerals showed high efficiency in removing NH4+ from solution which can then be slowly released as a nutrient in the soil.
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Affiliation(s)
- Mirian Chieko Shinzato
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas da Universidade Federal de São Paulo (UNIFESP - Campus Diadema), Rua São Nicolau, 210, Diadema, SP, CEP: 09913-030, Brazil.
| | - Luis Fernando Wu
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas da Universidade Federal de São Paulo (UNIFESP - Campus Diadema), Rua São Nicolau, 210, Diadema, SP, CEP: 09913-030, Brazil
| | - Thais Oliveira Mariano
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas da Universidade Federal de São Paulo (UNIFESP - Campus Diadema), Rua São Nicolau, 210, Diadema, SP, CEP: 09913-030, Brazil
| | - Juliana Gardenalli Freitas
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas da Universidade Federal de São Paulo (UNIFESP - Campus Diadema), Rua São Nicolau, 210, Diadema, SP, CEP: 09913-030, Brazil
| | - Tereza Silva Martins
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas da Universidade Federal de São Paulo (UNIFESP - Campus Diadema), Rua São Nicolau, 210, Diadema, SP, CEP: 09913-030, Brazil
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89
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Safie NN, Zahrim Yaser A, Hilal N. Ammonium ion removal using activated zeolite and chitosan. ASIA-PAC J CHEM ENG 2020. [DOI: 10.1002/apj.2448] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Abu Zahrim Yaser
- Faculty of EngineeringUniversiti Malaysia Sabah Kota Kinabalu Malaysia
| | - Nidal Hilal
- Water Advanced Technologies and Environmental Research (CWATER), College of EngineeringSwansea University Swansea UK
- NYUAD Water Research CenterNew York University Abu Dhabi Abu Dhabi United Arab Emirates
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90
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Wei L, Liu DJ, Rosales BA, Evans JW, Vela J. Mild and Selective Hydrogenation of Nitrate to Ammonia in the Absence of Noble Metals. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05338] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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91
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Li R, Zhang Y, Deng H, Zhang Z, Wang JJ, Shaheen SM, Xiao R, Rinklebe J, Xi B, He X, Du J. Removing tetracycline and Hg(II) with ball-milled magnetic nanobiochar and its potential on polluted irrigation water reclamation. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121095. [PMID: 31732339 DOI: 10.1016/j.jhazmat.2019.121095] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/17/2019] [Accepted: 08/23/2019] [Indexed: 06/10/2023]
Abstract
The feasibility of ball-milled magnetic nanobiochars (BMBCs) derived from wheat straw for adsorptive removal of tetracycline (TC) and Hg(II) from aqueous solution was assessed against that of pristine magnetic biochars (PMBCs). Ball milling conversion of PMBCs into BMBCs greatly improved TC and Hg(II) removal, and ≥ 99% TC and Hg(II) were adsorbed by BMBC prepared at 700 °C (BMBC700) within 12 h. The maximum adsorptive removal capacities of BMBC700 for TC and Hg(II) were 268.3 and 127.4 mg/g, respectively. The amounts of TC and Hg(II) removed by BMBC700 decreased gradually as the ionic strength of the solution increased, but increased as the solution temperature increased from 25 to 45 °C. The further FTIR and XPS analysis confirmed removal of TC was predominately regulated by the combination of electrostatic interactions, hydrogen bonds, and Cπ-Cπ interaction, while, the adsorption of Hg(II) was mainly governed by several mechanisms, including electrostatic attractions, Hg-Cπ bond formation, and surface complexation. Overall, BMBC700 presented great potential for TC and Hg(II) removal from polluted irrigation water and exhibited acceptable recyclability performance as well as magnetic separation advantage in use.
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Affiliation(s)
- Ronghua Li
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yichen Zhang
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hongxia Deng
- College of Chemistry and Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zengqiang Zhang
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Jim J Wang
- School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803, USA
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516, Kafr El-Sheikh, Egypt.
| | - Ran Xiao
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; School of Plant, Environmental and Soil Sciences, Louisiana State University Agricultural Center, 104 Sturgis Hall, Baton Rouge, LA 70803, USA
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea.
| | - Beidou Xi
- Chinese Research Academy of Environmental Sciences, State Key Lab Environmental Criteria & Risk Assessment, Beijing 100012, China
| | - Xiaosong He
- Chinese Research Academy of Environmental Sciences, State Key Lab Environmental Criteria & Risk Assessment, Beijing 100012, China
| | - Juan Du
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
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92
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Al-Sheikh F, Moralejo C, Pritzker M, Anderson WA, Elkamel A. Batch adsorption study of ammonia removal from synthetic/real wastewater using ion exchange resins and zeolites. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1718706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Farooq Al-Sheikh
- Department of Chemical Engineering, University of Technology, Baghdad, Iraq
| | - Carol Moralejo
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Mark Pritzker
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - William A. Anderson
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
| | - Ali Elkamel
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada
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93
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Yuan M, Yan F, Chen Y, Luo J, Li Z. A three-dimensional electrochemical oxidation system with α-Fe2O3/PAC as the particle electrode for ammonium nitrogen wastewater treatment. RSC Adv 2020; 10:8773-8779. [PMID: 35496551 PMCID: PMC9049977 DOI: 10.1039/d0ra00032a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 01/25/2020] [Indexed: 01/09/2023] Open
Abstract
A three-dimensional particle electrode loaded with α-Fe2O3 on powdered activated carbon (PAC) (α-Fe2O3/PAC) was synthesized by the microwave method for removing ammonium nitrogen from wastewater in a three-dimensional electrode system. The α-Fe2O3/PAC electrode was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The effect of the added α-Fe2O3/PAC on the removal of ammonium nitrogen from simulated wastewater was studied by changing the cell voltage, particle dosage, and particle electrode synthesis conditions. Simulated experiments were also carried out on different pollutants under the best experimental conditions and the actual domestic sewage was tested. The results show that the optimal synthesis conditions of the particle electrode are as follows: the ratio of PAC to anhydrous FeCl3 is 1 : 2, and the microwave power is 1000 W for 60 s. After 20 min of electrolysis at 20 V, the ammonium nitrogen removal rate can reach 95.30%. A microwave method was used to synthesis α-Fe2O3/PAC 3D particle electrode rapidly which can remove NH4+–N from wastewater.![]()
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Affiliation(s)
- Meng Yuan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
- Northwest A&F University
- Yangling 712100
- PR China
- College of Materials Science and Engineering
| | - Fangrong Yan
- College of Materials Science and Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- PR China
| | - Yige Chen
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
- Northwest A&F University
- Yangling 712100
- PR China
- College of Resources and Environment
| | - Jujie Luo
- College of Materials Science and Engineering
- Taiyuan University of Technology
- Taiyuan 030024
- PR China
| | - Ziyan Li
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
- Northwest A&F University
- Yangling 712100
- PR China
- College of Resources and Environment
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94
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Sethy TR, Pradhan AK, Sahoo PK. Simultaneous studies on kinetics, bio-adsorption behaviour of chitosan grafted thin film nanohydrogel for removal of hazardous metal ion from water. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.enmm.2019.100262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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95
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He W, Gong H, Fang K, Peng F, Wang K. Revealing the effect of preparation parameters on zeolite adsorption performance for low and medium concentrations of ammonium. J Environ Sci (China) 2019; 85:177-188. [PMID: 31471025 DOI: 10.1016/j.jes.2019.05.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 06/10/2023]
Abstract
The effect of preparation parameters on the performance of zeolite for ammonium (20-300 mg N/L) adsorption from simulated wastewater is reported. It was found that the ratios of Na2O/SiO2 and Si/Al had a more important influence than crystallization time on zeolite adsorption properties. Relatively low Na2O/SiO2 ratios were beneficial for fabrication of zeolites with high proportions of micropore area and volume, which led to the surface adsorption mechanism being dominated by surface free energy and pore effects. However, with decreasing Si/Al ratios, the effect of ion-exchange was more prominent due to the high negative surface potential of zeolite. In addition, the concentration of weak acid sites on the zeolites was increased with lower ratios of Na2O/SiO2 and Si/Al, which may promote ammonium removal. Therefore, the most effective zeolite for ammonium removal, which was fabricated at Na2O/SiO2 = 1.375, Si/Al = 4 and crystallization time of 48 hr, exhibited the cooperative effects of adsorption, ion-exchange and a large amount of weak acid sites. The maximum ammonium adsorption capacity (35.06 ± 0.98 mg/g) and the removal efficiency (94.44% ± 4.00%) were obtained at the dosage of 4.0 g/L zeolite NaX at ammonium concentrations of 300 mg N/L and 20 mg N/L, respectively. The Freundlich isotherm and pseudo-first-order kinetics models provided excellent fitting for the ammonium adsorption process. In addition, zeolite NaX showed about 1.23-3.2 times the ammonium adsorption capacity of clinoptilolite. The stable and efficient reusability of zeolite NaX after five regeneration cycles demonstrated that this adsorbent has considerable potential for practical industrial applications.
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Affiliation(s)
- Wenyan He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Hui Gong
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Kuo Fang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Fei Peng
- School of Water Resources & Environment, China University of Geosciences, Beijing 100083, China
| | - Kaijun Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
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96
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Zhang W, Zhang R, Yang Y, Huang T, Wen G. Removal of High Concentrations of Ammonium from Groundwater in a Pilot-Scale System through Aeration at the Bottom Layer of a Chemical Catalytic Oxidation Filter. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16203989. [PMID: 31635386 PMCID: PMC6843939 DOI: 10.3390/ijerph16203989] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/26/2019] [Accepted: 10/02/2019] [Indexed: 11/30/2022]
Abstract
To remove high concentrations of ammonium from groundwater, pure oxygen and compressed air were fed into a chemical catalytic filter and the ammonium removal efficiency was investigated. The experimental results showed that the oxygen content is the critical limiting factor for ammonium removal. Aeration with 40 mL/min pure oxygen or 100 mL/min compressed air from the bottom of the filter supplied adequate oxygen and approximately 4.2 mg/L of ammonium was removed in this process. Moreover, when the aeration device was moved to 1/3 of the height of the filter bed, the required flow rates of pure oxygen and compressed air decreased further and the turbidity removal was improved. Pouring ozone gas into the filter system, which can inactivate bacteria effectively, can also obtain the remarkable ammonium removal, indicating that ammonium removal was mainly due to the chemical catalytic oxidation in this process rather than the biodegradation. This study provides a novel method for removing high concentrations of ammonium from groundwater.
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Affiliation(s)
- Wushou Zhang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Ruifeng Zhang
- School of Urban Planning and municipal engineering, Xi'an Polytechnic University, Xi'an 710048, China.
| | - Yanfeng Yang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Tinglin Huang
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Gang Wen
- Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
- Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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97
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Dai H, Wang M, Luo W, Pan C, Hu F, Peng X. In situ fabrication of hierarchical biomass carbon-supported Cu@CuO-Al 2O 3 composite materials: synthesis, properties and adsorption applications. RSC Adv 2019; 9:33007-33016. [PMID: 35529143 PMCID: PMC9073131 DOI: 10.1039/c9ra04385c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/06/2019] [Indexed: 11/21/2022] Open
Abstract
Hierarchical Cu-Al2O3/biomass-activated carbon composites were successfully prepared by entrapping a biomass-activated carbon powder derived from green algae in the Cu-Al2O3 frame (H-Cu-Al/BC) for the removal of ammonium nitrogen (NH4 +-N) from aqueous solutions. The as-synthesized samples were characterized via XRD, SEM, BET and FTIR spectroscopy. The BET specific surface area of the synthesized H-Cu-Al/BC increased from 175.4 m2 g-1 to 302.3 m2 g-1 upon the incorporation of the Cu-Al oxide nanoparticles in the BC surface channels. The experimental data indicated that the adsorption isotherms were well described by the Langmuir equilibrium isotherm equation and the adsorption kinetics of NH4 +-N obeyed the pseudo-second-order kinetic model. The static maximum adsorption capacity of NH4 +-N on H-Cu-Al/BC was 81.54 mg g-1, which was significantly higher than those of raw BC and H-Al/BC. In addition, the presence of K+, Na+, Ca2+, and Mg2+ ions had no significant impact on the NH4 +-N adsorption, but the presence of Al3+ and humic acid (NOM) obviously affected and inhibited the NH4 +-N adsorption. The thermodynamic analyses indicated that the adsorption process was endothermic and spontaneous in nature. H-Cu-Al/BC exhibited removal efficiency of more than 80% even after five consecutive cycles according to the recycle studies. These findings suggest that H-Cu-Al/BC can serve as a promising adsorbent for the removal of NH4 +-N from aqueous solutions.
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Affiliation(s)
- Hongling Dai
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
| | - Min Wang
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
| | - Wendong Luo
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
| | - Cheng Pan
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
| | - Fengping Hu
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
| | - Xiaoming Peng
- School of Civil Engineering and Architecture, East China Jiaotong University Nanchang 330013 Jiangxi Province China
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98
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Cruz H, Law YY, Guest JS, Rabaey K, Batstone D, Laycock B, Verstraete W, Pikaar I. Mainstream Ammonium Recovery to Advance Sustainable Urban Wastewater Management. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:11066-11079. [PMID: 31483625 DOI: 10.1021/acs.est.9b00603] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Throughout the 20th century, the prevailing approach toward nitrogen management in municipal wastewater treatment was to remove ammonium by transforming it into dinitrogen (N2) using biological processes such as conventional activated sludge. While this has been a very successful strategy for safeguarding human health and protecting aquatic ecosystems, the conversion of ammonium into its elemental form is incompatible with the developing circular economy of the 21st century. Equally important, the activated sludge process and other emerging ammonium removal pathways have several environmental and technological limitations. Here, we assess that the theoretical energy embedded in ammonium in domestic wastewater represents roughly 38-48% of the embedded chemical energy available in the whole of the discharged bodily waste. The current routes for ammonium removal not only neglect the energy embedded in ammonium, but they can also produce N2O, a very strong greenhouse gas, with such emissions comprising the equivalent of 14-26% of the overall carbon footprint of wastewater treatment plants. N2O emissions often exceed the carbon emissions related to the electricity consumption for the process requirements of WWTPs. Considering these limitations, there is a need to develop alternative ammonium management approaches that center around recovery of ammonium from domestic wastewater rather than deal with its "destruction" into elemental dinitrogen. Current ammonium recovery techniques are applicable only at orders of magnitude above domestic wastewater strength, and so new techniques based on physicochemical adsorption are of particular interest. A new pathway is proposed that allows for mainstream ammonium recovery from wastewater based on physicochemical adsorption through development of polymer-based adsorbents. Provided adequate adsorbents corresponding to characteristics outlined in this paper are designed and brought to industrial production, this adsorption-based approach opens perspectives for mainstream continuous adsorption coupled with side-stream recovery of ammonium with minimal chemical requirements. This proposed pathway can bring forward an effective resource-oriented approach to upgrade the fate of ammonium in urban water management without generating hidden externalized environmental costs.
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Affiliation(s)
- Heidy Cruz
- School of Civil Engineering , The University of Queensland , Brisbane , Queensland 4072 , Australia
| | - Ying Yu Law
- Singapore Centre for Environmental Life Sciences Engineering , Nanyang Technological University , 637551 , Singapore
| | - Jeremy S Guest
- Department of Civil and Environmental Engineering , University of Illinois at Urbana-Champaign , Illinois 61801 , United States
| | - Korneel Rabaey
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Damien Batstone
- Advanced Water Management Centre , The University of Queensland , Brisbane , Queensland 4072 , Australia
| | - Bronwyn Laycock
- School of Chemical Engineering , The University of Queensland , Brisbane , Queensland 4072 , Australia
| | - Willy Verstraete
- Center for Microbial Ecology and Technology (CMET) , Ghent University , Coupure Links 653 , 9000 Gent , Belgium
| | - Ilje Pikaar
- School of Civil Engineering , The University of Queensland , Brisbane , Queensland 4072 , Australia
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99
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Enhanced removal of ammonium from the aqueous solution using a high-gravity rotating packed bed loaded with clinoptilolite. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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100
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Shih YJ, Dong CD, Huang YH, Huang CP. Electro-sorption of ammonium ion onto nickel foam supported highly microporous activated carbon prepared from agricultural residues (dried Luffa cylindrica). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 673:296-305. [PMID: 30991319 DOI: 10.1016/j.scitotenv.2019.04.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/02/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
An electrode made of loofah sponge derived activated carbon supported on nickel foam (AC/Ni) was successfully fabricated and used to remove ammonium ion (NH4+) from aqueous solution. A multilayer adsorption isotherm was used to describe ammonium electro-sorption on AC/Ni electrodes at different temperature, initial NH4+ concentration, and electrical field. The cyclic voltammetry (CV) results suggested that the electrical capacitance of AC/Ni electrodes, with the AC being prepared without preheating (OAC) or with low temperature heating (i.e., 300 AC), were higher than those prepared at high preheating temperature (i.e., 400 AC and 500 AC). Increasing the electro-sorption temperature from 10 to 50 °C decreased the monolayer NH4+ adsorption capacity from 5 to ca. 2-3 mg-N g-1, respectively. Background electrolyte, namely, sodium sulfate, exhibited significant competitive effect on the adsorption of ammonium ion at sodium ion concentration > 10-2 M. The activation energy and heat of adsorption were 9-23.2 kJ mol-1 and -3.7--10.7 kJ mol-1, respectively, indicating a physisorption and exothermic adsorption characteristics. Based on the kinetics and thermodynamics analysis, there was slight increase in the activation energy with elevating preheating temperature, which increased the quantity of micro-pores and surface heterogeneity of the AC materials. Overall, results clearly demonstrated that carbon pyrolysis played a role on the capacitive charging behaviors of electrodes and the efficiency of NH4+ electro-sorption on the AC/Ni electrodes.
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Affiliation(s)
- Yu-Jen Shih
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 811, Taiwan
| | - Yao-Hui Huang
- Department of Chemical Engineering, National Cheng-Kung University, Tainan 701, Taiwan
| | - C P Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA.
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