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Silanization enabled superhydrophobic PTFE membrane with antiwetting and antifouling properties for robust membrane distillation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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2
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Yang D, Chen Q, Liu R, Song L, Zhang Y, Dai X. Ammonia recovery from anaerobic digestate: State of the art, challenges and prospects. BIORESOURCE TECHNOLOGY 2022; 363:127957. [PMID: 36113813 DOI: 10.1016/j.biortech.2022.127957] [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: 07/27/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Nitrogen-containing wastewater and organic wastes are inevitably produced during human activities. To reduce nitrogen pollution, much energy has been used to convert ammonia nitrogen into nitrogen gas through biological nitrogen removal method. However, it needs to consume high energy again during industrial nitrogen fixation, which give rise to massive greenhouse gas (GHG) emissions. Therefore, ammonia recovery from organic wastes has attracted much attention in recent years. In this review, the advantages and disadvantages of ammonia stripping, membrane separation and struvite precipitation are discussed firstly. The ammonia stripping mechanisms, influencing factors, mass transfer process, and the latest innovative ammonia stripping techniques from the anaerobic digestate of organic wastes are critically reviewed. Additionally, a comprehensive economic analysis of different ammonia removal or recovery processes is carried out. The challenges and prospects of ammonia recovery are suggested. Ammonia recovery is of great significance for promoting nitrogen cycle, energy saving and GHG emission reduction.
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Affiliation(s)
- Donghai Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Qiuhong Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Rui Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Liang Song
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yue Zhang
- China Civil Engineering Society Water Industry Association, Beijing 100082, China
| | - Xiaohu Dai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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3
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Xiong Z, Huang Y, Huang Z, Shi Y, Qu F, Zhang G, Yang J, Zhao S. Confining Nano-Fe 3O 4 in the Superhydrophilic Membrane Skin Layer to Minimize Internal Fouling. ACS APPLIED MATERIALS & INTERFACES 2022; 14:26044-26056. [PMID: 35609300 DOI: 10.1021/acsami.2c04685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Membrane surface fouling is often reversible as it can be mitigated by enhancing the crossflow shear force. However, membrane internal fouling is often irreversible and thus more challenging. In this study, we developed a new superhydrophilic poly(vinylidene fluoride) (P-PVDF) membrane confined with nano-Fe3O4 in the top skin layer via reverse filtration to reduce internal fouling. The surface of the P-PVDF membrane confined with nano-Fe3O4 had superwetting properties (water contact angle reaching 0° within 1 s), increased roughness (from 182 to 239 nm), and enhanced water affinity. The Fe3O4@P-PVDF membrane surface showed a thicker and enhanced hydration layer, which prevented foulants from approaching membrane surfaces and pores, thereby improving the rejection. For example, when 50 ppm humic acid (HA) solution was used as the feed, the removal efficiency of the Fe3O4@P-PVDF membrane was ∼67%, while the HA removal of the P-PVDF membrane was only ∼20%. The results from the resistance-in-series model showed that nanoconfinement of Fe3O4 in the top skin layer of the membrane allowed foulants to accumulate on the membrane surface (i.e., surface fouling) rather than within the internal pores (i.e., internal fouling). The filtration results under crossflow fouling and cleaning confirmed that the Fe3O4@P-PVDF membrane had higher surface fouling but it was much more reversible and much lower internal fouling compared with the control membrane. Our fouling analysis offers new insights into mass transfer mechanisms of the membrane with a nanoconfinement-enhanced hydration layer. This study provides an effective strategy to develop membranes with low internal fouling propensities.
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Affiliation(s)
- Zhu Xiong
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, Guangdong, P. R. China
| | - Yongshi Huang
- Institute of Environmental Research at Greater Bay Area, Guangzhou University, Guangzhou 510006, P. R. China
| | - Zehui Huang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, Guangdong, P. R. China
| | - Yiwen Shi
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, Guangdong, P. R. China
| | - Fangshu Qu
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Gaosheng Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, Guangdong, P. R. China
| | - Jingxin Yang
- Institute of Environmental Research at Greater Bay Area, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shuaifei Zhao
- Geelong, Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
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4
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CO2 absorption into aqueous ammonia using membrane contactors: Role of solvent chemistry and pore size on solids formation for low energy solvent regeneration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Ni T, Lin J, Kong L, Zhao S. Omniphobic membranes for distillation: Opportunities and challenges. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Deng Z, van Linden N, Guillen E, Spanjers H, van Lier JB. Recovery and applications of ammoniacal nitrogen from nitrogen-loaded residual streams: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 295:113096. [PMID: 34167058 DOI: 10.1016/j.jenvman.2021.113096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/28/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Total ammoniacal nitrogen (TAN) is considered to be a pollutant, but is also a versatile resource. This review presents an overview of the TAN recovery potentials from nitrogen (N)-loaded residual streams by discussing the sources, recovery technologies and potential applications. The first section of the review addresses the fate of TAN after its production. The second section describes the identification and categorisation of N-loaded (≥0.5 g L-1 of reduced N) residual streams based on total suspended solids (TSS), chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN), TAN, and TAN/TKN ratio. Category 1 represents streams with a low TAN/TKN ratio (<0.5) that need conversion of organic-N to TAN prior to TAN recovery, for example by anaerobic digestion (AD). Category 2 represents streams with a high TAN/TKN ratio (≥0.5) and high TSS (>1 g L-1) that require a decrease of the TSS prior to TAN recovery, whereas category 3 represents streams with a high TAN/TKN ratio (≥0.5) and low TSS (≤1 g L-1) that are suitable for direct TAN recovery. The third section focuses on the key processes and limitations of AD, which is identified as a suitable technology to increase the TAN/TKN ratio by converting organic-N to TAN. In the fourth section, TAN recovery technologies are evaluated in terms of the feed composition tolerance, the required inputs (energy, chemicals, etc.) and obtained outputs of TAN (chemical form, concentration, etc.). Finally, in the fifth section, the use of recovered TAN for three major potential applications (fertilizer, fuel, and resource for chemical and biochemical processes) is discussed. This review presents an overview of possible TAN recovery strategies based on the available technologies, but the choice of the recovery strategy shall ultimately depend on the product characteristics required by the application. The major challenges identified in this review are the lack of information on enhancing the conversion of organic-N into TAN by AD, the difficulties in comparing the performance and required input of the recovery technologies, and the deficiency of information on the required concentration and quality of the final TAN products for reuse.
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Affiliation(s)
- Zhe Deng
- Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628, CN, Delft, the Netherlands.
| | - Niels van Linden
- Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628, CN, Delft, the Netherlands
| | - Elena Guillen
- Institute for Sustainable Technologies (AEE INTEC), Feldgasse 19, 8200, Gleisdorf, Austria
| | - Henri Spanjers
- Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628, CN, Delft, the Netherlands
| | - Jules B van Lier
- Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628, CN, Delft, the Netherlands
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7
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Feng L, Liang F, Xu L, Ji L, He Q, Yan S. Simultaneous biogas upgrading, CO 2 sequestration, and biogas slurry decrement using biomass ash. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 133:1-9. [PMID: 34333376 DOI: 10.1016/j.wasman.2021.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
A novel system for simultaneous biogas upgrading, CO2 sequestration, and biogas slurry decrement was established by adding biomass ash into biogas slurry to form a renewable CO2 mixture absorbent. After CO2 saturation, the CO2-rich mixture absorbent could be applied for plant growth. When the mass ratio of liquid to solid was 4:1, CO2 absorption capacity of this mixture absorbent reached up to 97.33 g-CO2/kg-biomass-ash, which was about 135% higher than that of the biomass ash-water mixture. The highest value of 129.94 g-CO2/kg-biomass-ash was obtained at a liquid-solid ratio of 99:1. When the TS concentration of anaerobic digestion feedstock was higher than 16 wt% and the water content of CO2-rich absorbent was about 50 wt%, more than 80% of biogas slurry can be adsorbed by the biomass ash. If the biomass ash with a CO2 absorption capacity of 100 g-CO2/kg was adopted and its transportation distance was less than 45 km, the biogas upgrading cost could be lower than the global average level (about RMB¥ 0.7/Nm3-biogas) when using the novel system proposed in this study.
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Affiliation(s)
- Liang Feng
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China
| | - Feihong Liang
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China
| | - Lang Xu
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China
| | - Long Ji
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China
| | - Qingyao He
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China.
| | - Shuiping Yan
- College of Engineering, Huazhong Agricultural University, No.1, Shizishan Street, Hongshan District, Wuhan 430070, PR China; Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430070, PR China.
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8
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Gao J, Shi N, Guo X, Li Y, Bi X, Qi Y, Guan J, Jiang B. Electrochemically Selective Ammonia Extraction from Nitrate by Coupling Electron- and Phase-Transfer Reactions at a Three-Phase Interface. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10684-10694. [PMID: 34259503 DOI: 10.1021/acs.est.0c08552] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As an attractive alternative to the Haber-Bosch process, an electrochemical process for nitrate (NO3-) reduction to ammonia (NH3) has made great strides in the development of advanced electrocatalysts to suppress the unavoidable H2 evolution reaction (HER) and side production of N2. However, isochronous NH3 separation and recovery from the mother liquor, especially wastewaters, are awfully neglected in state-of-the-art electrochemical systems. Here, we designed electrochemical three-phase interfaces constructed by a CoP cathode and a flat-sheet gas membrane to achieve NO3- reduction to ammonia and simultaneous NH3 recovery in the form of (NH4)2SO4 from wastewaters. The partial current density for ammonia yield and its recovery rate were 37.3 mA cm-2 and 306 g NH3-N m-2 day-1, respectively, accompanying 100% NO3- removal and 99.7% NH3 extraction. By favoring the originally unfavored side reaction HER, it served as the driving force for NH3 separation from the wastewater through gas stripping and membrane separation at the three-phase interfaces. Unexpectedly, the timely NH3 separation could also promote the reduction of NO3- to ammonia due to the release of much more active sites. From these, we envision that the present electrochemical process can be routinely employed as an effective strategy to address energy and environmental issues with NH3 recovery from NO3- wastewater.
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Affiliation(s)
- Jianan Gao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
- Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Ning Shi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Xiaobin Guo
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Yifan Li
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Xuejun Bi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Yuanfeng Qi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Jing Guan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
| | - Bo Jiang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, P. R. China
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9
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Zhang L, Xing L, Liu J, Qi T, Li M, Wang L. Synchronous catalysis of sulfite oxidation and abatement of Hg2+ in wet desulfurization using one-pot synthesized Co-TUD-1/S. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Choi K. Nitrogen‐Neutral Amino Acids Refinery: Deamination of Amino Acids for Bio‐Alcohol and Ammonia Production. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202000031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kwon‐Young Choi
- Ajou University Department of Environmental and Safety Engineering College of Engineering Suwon, Gyeonggi-do South Korea
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11
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Bavarella S, Hermassi M, Brookes A, Moore A, Vale P, Moon I, Pidou M, McAdam E. Recovery and concentration of ammonia from return liquor to promote enhanced CO2 absorption and simultaneous ammonium bicarbonate crystallisation during biogas upgrading in a hollow fibre membrane contactor. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Qiu B, Fan S, Tang X, Qi B, Deng L, Wang W, Liu J, Wang Y, Xiao Z. Simultaneous recovery of phosphorus and nitrogen from liquid digestate by vacuum membrane distillation with permeate fractional condensation. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.01.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Qi T, Wang L, Wang Y, Xing L, Zhang L, Liu J, Xiao H, Zhang S. Suppressing Ammonia Re-Emission with the Aid of the Co 3O 4-NPs@KIT-6 Catalyst in Ammonia-Based Desulfurization. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:13477-13485. [PMID: 31647228 DOI: 10.1021/acs.est.9b03060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The re-emission of NH3 and SO2 caused by the decomposition of (NH4)2SO3 is a crucial concern in ammonia-based desulfurization. In this study, a novel Co3O4-NPs@KIT-6 catalyst with a three-dimensional two-helix structure is proposed for converting (NH4)2SO3 into (NH4)2SO4. The oxidation rate of (NH4)2SO3 with the catalyst was 7.5 times that without any catalyst, and this improvement was attributed to appropriately dispersed Co3O4 nanoparticles with a size of 4-10 nm that interacted with the KIT-6 support. Therefore, the number of active sites with substitution and hole defects was substantially increased, which is advantageous for high catalytic activities. Consequently, the amount of NH3 and SO2 re-emission during (NH4)2SO3 oxidation was reduced by 43.9%, which considerably reduced potential environmental risks. The results of this study serve to advance ammonia desulfurization by improving the desulfurization efficiency, downsizing the oxidation tank, and generating considerable profit from efficient reclaiming of (NH4)2SO4 as a fertilizer.
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Affiliation(s)
- Tieyue Qi
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Lidong Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Yuguo Wang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Lei Xing
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Lin Zhang
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Jie Liu
- Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , Hebei , China
| | - Huining Xiao
- Department of Chemical Engineering , University of New Brunswick , Fredericton E3C 2G6 , New Brunswick , Canada
| | - Shihan Zhang
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , Zhejiang , China
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Huang SM, Chen YH, Yuan WZ, Zhao S, Hong Y, Ye WB, Yang M. Heat and mass transfer in a hollow fiber membrane contactor for sweeping gas membrane distillation. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.03.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ye W, Liu H, Jiang M, Lin J, Ye K, Fang S, Xu Y, Zhao S, Van der Bruggen B, He Z. Sustainable management of landfill leachate concentrate through recovering humic substance as liquid fertilizer by loose nanofiltration. WATER RESEARCH 2019; 157:555-563. [PMID: 30991179 DOI: 10.1016/j.watres.2019.02.060] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/24/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
The hybrid membrane bioreactor - nanofiltration treatment process can be an effective approach for treating the landfill leachate, but the residual leachate concentrate highly loaded with the humic substance and salts remains an environmental concern. Herein, a loose nanofiltration membrane (molecular weight cut-off of 860 Da) was used to recover the humic substance, which can act as a key component of organic fertilizer, from the leachate concentrate. The loose nanofiltration membrane showed the high permeation fluxes and high transmissions (>94.7%) for most inorganic ions (i.e., Na+, K+, Cl-, and NO3-), while retaining 95.7 ± 0.3% of the humic substance, demonstrating its great potential in effective fractionation of humic substance from inorganic salts in the leachate concentrate. The operation conditions, i.e., cross-flow rates and temperatures, had more pronounced impacts on the filtration performance of the loose nanofiltration membrane. Increasing cross-flow rates from 60 to 260 L h-1 resulted in an improvement of ca. 7.3% in the humic substance rejection, mainly due to the reduced concentration polarization effect. In contrast, the solute rejection of the nanofiltration membrane was negatively dependent on the temperature. The rejection of humic substance decreased from 96.3 ± 0.3% to 92.0 ± 0.4% with increasing the temperature from 23 to 35 °C, likely due to the enlargement of the membrane pore size and enhancement in solute diffusivity. The humic substance was enriched from 1735 to 15,287 mg L-1, yielding a 91.2% recovery ratio with 85.7% desalination efficiency at a concentration factor of 9.6. The recovered HS had significantly stimulated the seed germination and growth of the green mungbean plants with no obvious phytotoxicity. These results demonstrate that loose nanofiltration can be an effective promising technology to recover the humic substance as a valuable fertilizer component towards sustainable management of the landfill leachate concentrate.
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Affiliation(s)
- Wenyuan Ye
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Hongwei Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Mei Jiang
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, School of Environment and Resources, Fuzhou University, Fuzhou, 350116, China
| | - Jiuyang Lin
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, School of Environment and Resources, Fuzhou University, Fuzhou, 350116, China.
| | - Kunfeng Ye
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, School of Environment and Resources, Fuzhou University, Fuzhou, 350116, China
| | - Shengqiong Fang
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, School of Environment and Resources, Fuzhou University, Fuzhou, 350116, China
| | - Yudong Xu
- Fujian Provincial Engineering Research Center of Rural Waste Recycling Technology, School of Environment and Resources, Fuzhou University, Fuzhou, 350116, China
| | - Shuaifei Zhao
- Department of Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, NSW, 2109, Australia; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Bart Van der Bruggen
- Department of Chemical Engineering, Process Engineering for Sustainable Systems (ProcESS), KU Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium
| | - Zhen He
- Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
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16
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Biogas slurry as draw solution of forward osmosis process to extract clean water from micro-polluted water for hydroponic cultivation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.01.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Li X, Zhang Y, Cao J, Wang X, Cui Z, Zhou S, Li M, Drioli E, Wang Z, Zhao S. Enhanced fouling and wetting resistance of composite Hyflon AD/poly(vinylidene fluoride) membrane in vacuum membrane distillation. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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He Q, Tu T, Yan S, Yang X, Duke M, Zhang Y, Zhao S. Relating water vapor transfer to ammonia recovery from biogas slurry by vacuum membrane distillation. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.09.030] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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