1
|
Jeong SS, Park BJ, Yoon JH, Kirkham MB, Yang JE, Kim HS. Mechanistic Evidence for Hg Removal from Wastewater by Biologically Produced Sulfur. TOXICS 2024; 12:278. [PMID: 38668501 PMCID: PMC11053473 DOI: 10.3390/toxics12040278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/29/2024]
Abstract
A significant quantity of biologically produced sulfur (BPS) is generated as a by-product of chemical and biological desulfurization processes applied to landfill gas treatment. The beneficial upcycling of BPS has seen limited use in the environmental context. The effectiveness and underlying mechanism of BPS as an adsorbent for removing Hg2+ from both solution and wastewater were elucidated based on experiments encompassing surface characterization, adsorption isotherms, kinetics, and thermodynamics. The BPS exhibited remarkable efficacy in removing Hg2+ from solution, with the Langmuir model accurately describing the adsorption process and showing a maximum adsorption capacity of 244 mg g-1. Surface analysis through X-ray photoelectron spectroscopy and scanning electron microscopy revealed that Hg2+ complexed with sulfide on BPS surfaces, forming stable HgS. The adsorbed Hg was strongly retained in BPS, with less than 0.2% of the adsorbed Hg desorbed by strong acids. Adsorption kinetics followed the double-exponential first-order model, showing an initial rapid adsorption phase wherein 75% of the initial Hg2+ was removed within 5 min, followed by a slower adsorption rate. The thermodynamic parameters suggested that adsorption of Hg2+ by BPS was a spontaneous and endothermic process. Additionally, BPS effectively removed Hg2+ from wastewater, showing preference for Hg over other co-existing metals. These findings underscore the potential of BPS as an effective adsorbent for Hg2+ removal from wastewater.
Collapse
Affiliation(s)
- Seok-Soon Jeong
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Byung-Jun Park
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Jung-Hwan Yoon
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Mary Beth Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA;
| | - Jae-E. Yang
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| | - Hyuck-Soo Kim
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea; (S.-S.J.); (B.-J.P.); (J.-H.Y.); (J.-E.Y.)
| |
Collapse
|
2
|
Wu X, Wang J, Lei Y, He H, Lei Z, Huang X, Xiao H, Wu G, Zeng Z, Wang Y, Huang L, Shen F, Deng S, Gao X, Fang Z, Fang D. Restricted reaction of layered double hydroxide nanoparticles with phosphate in a confined microsphere space. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 913:169720. [PMID: 38171457 DOI: 10.1016/j.scitotenv.2023.169720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024]
Abstract
Over the past decades, considerable efforts have been made to find useful solutions for phosphate pollution control. The state transition of nanomaterials from freely dispersed to encapsulated provides a realizable route for their application in phosphate elimination. The separation convenience offered by encapsulation has been widely recognized, however, the unique binding mode of nanostructures and phosphate in the confined space remains unclear, limiting its further development. Here, carboxymethyl cellulose (CMC) microspheres were used as hosts to deploy layered double hydroxide (LDH) nanoparticles. On this basis, we described an attempt to explore the adsorption behavior of LDH and phosphate in the microsphere space. Compared to their freely dispersed analogues, LDH particles exhibited higher structural stability, wider pH adaptability, and better phosphate selectivity when spatially confined in the CMC microsphere. Nevertheless, the kinetic process was severely inhibited by three orders of magnitude. Besides, the saturated phosphate adsorption capacity was also reduced to 74.6 % of the freely dispersed system. A combinative characterization revealed that the highly electronegative CMC host not only causes electrostatic repulsion to phosphate, but also extracts the electron density of the metal center of LDH, weakening its ability to act as a Lewis acid site for phosphate binding. Meanwhile, the microsphere encapsulation also hinders the ion exchange function of interlayer anions and phosphate. This study offers an objective insight into the reaction of LDH and phosphate in the confined microsphere space, which may contribute to the advanced design of encapsulation strategies for nanoparticles.
Collapse
Affiliation(s)
- Xingyu Wu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Jingyi Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuantong Lei
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoyang He
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhibo Lei
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Xinjuan Huang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Hong Xiao
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Ganxue Wu
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhenxing Zeng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Yingjun Wang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Liping Huang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Fei Shen
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China; Sichuan Provincial Engineering Center of Agricultural Environmental Pollution Control, Sichuan Agricultural University, Chengdu 611130, China
| | - Shihuai Deng
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China; Sichuan Provincial Engineering Center of Agricultural Environmental Pollution Control, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoping Gao
- Fuzhou Planning and Design Research Institute Group Co., LTD, Fuzhou 350100, China.
| | - Zhuoyao Fang
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Dexin Fang
- College of Environmental Sciences, Sichuan Agricultural University, Chengdu 611130, China.
| |
Collapse
|
3
|
Wang X, Li Y, Wen X, Liu L, Zhang L, Long M. Cooperation of ferrous ions and hydrated ferric oxide for advanced phosphate removal over a wide pH range: Mechanism and kinetics. WATER RESEARCH 2024; 249:120969. [PMID: 38086202 DOI: 10.1016/j.watres.2023.120969] [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: 09/24/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024]
Abstract
Excessive phosphate loading leads to eutrophication problems in rivers or lakes and causes serious environmental and economic damages, urging new technologies to reduce effluent phosphate at ultra-low levels. As a promising candidate, adsorption over metal oxides is restricted by the released hydroxide anions (OH-) through ligand exchange, which elevates pH and suppresses further adsorption. In this contribution, we found ferrous ions (Fe2+) significantly enhance phosphate removal over hydrated ferric oxide (HFO) in a wide pH range via a cooperation of adsorption and precipitation, and clarified the synergistic mechanism by a series of characterizations and the modified models of adsorption isotherms and pseudo second-order kinetics. The combination of Fe2+and HFO removed up to 51.7 mg/g of phosphate at pH 4.0, with 43.6 and 8.1 mg/g attributing to adsorption and precipitation, respectively. In comparison to HFO alone, HFO/Fe2+ system achieved 2.2-fold increase in phosphate removal, 1.9-fold increase in phosphate adsorption capacity, and 3.4-fold increase in phosphate removal rate. The enhancement is understood by that hydroxide anions released from ligand exchange over HFO are neutralized by protons produced from the oxidative precipitation of ferrous ions. The HFO/Fe2+ combining system is promising to realize advanced removal of low concentration phosphate containing wastewater, and these findings bring new insights for the development of novel phosphate removal technologies through a rational design of a combination process.
Collapse
Affiliation(s)
- Xiaohui Wang
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yang Li
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xue Wen
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liyan Liu
- Student Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lizhi Zhang
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Mingce Long
- School of Environmental Science and Engineering, Key Laboratory of Thin Film and Microfabrication Technology (Ministry of Education), Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
4
|
Hutchison JM, Hussein FB, Mayer BK. Evaluating Sustainable Development Pathways for Protein- and Peptide-Based Bioadsorbents for Phosphorus Recovery from Wastewater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:16317-16326. [PMID: 37856833 PMCID: PMC10620995 DOI: 10.1021/acs.est.3c04016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 09/20/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023]
Abstract
Recovering phosphate (P) from point sources such as wastewater effluent is a priority in order to alleviate the impacts of eutrophication and implement a circular economy for an increasingly limited resource. Bioadsorbents featuring P-binding proteins and peptides offer exquisite P specificity and sensitivity for achieving ultralow P concentrations, i.e., <100 μg P L-1, a discharge limit that has been implemented in at least one treatment facility in nine U.S. states. To prioritize research objectives for P recovery in wastewater treatment, we compared the financial and environmental sustainability of protein/peptide bioadsorbents to those of LayneRT anion exchange resin. The baseline scenario (reflecting lab-demonstrated performance at a full-scale implementation) had costs that were 3 orders of magnitude higher than those for typical wastewater treatment. However, scenarios exploring bioadsorbent improvements, including increasing the P-binding capacity per unit volume by using smaller P-selective peptides and nanoparticle base materials and implementing reuse, dramatically decreased median impacts to $1.06 m-3 and 0.001 kg CO2 equiv m-3; these values are in line with current wastewater treatment impacts and lower than the median LayneRT impacts of $4.04 m-3 and 0.19 kg CO2 equiv m-3. While the financial viability of capturing low P concentrations is a challenge, incorporating the externalities of environmental impacts may provide a feasible path forward to motivate ultralow P capture.
Collapse
Affiliation(s)
- Justin M. Hutchison
- Department
of Civil, Environmental and Architectural Engineering, University of Kansas, 1530 W 15th St, Lawrence, Kansas 66045, United States
| | - Faten B. Hussein
- Department
of Civil, Construction and Environmental Engineering, Marquette University, 1637 W Wisconsin Ave, Milwaukee, Wisconsin 53233, United States
| | - Brooke K. Mayer
- Department
of Civil, Construction and Environmental Engineering, Marquette University, 1637 W Wisconsin Ave, Milwaukee, Wisconsin 53233, United States
| |
Collapse
|
5
|
El-Maghrabi N, Fawzy M, Mahmoud AED. Efficient Removal of Phosphate from Wastewater by a Novel Phyto-Graphene Composite Derived from Palm Byproducts. ACS OMEGA 2022; 7:45386-45402. [PMID: 36530337 PMCID: PMC9753538 DOI: 10.1021/acsomega.2c05985] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/22/2022] [Indexed: 05/17/2023]
Abstract
The increased demand for clean water especially in overpopulated countries is of great concern; thus, the development of eco-friendly and cost-effective techniques and materials that can remediate polluted water for possible reuse in agricultural purposes can offer a life-saving solution to improve human welfare, especially in view of climate change impacts. In the current study, the agricultural byproducts of palm trees have been used for the first time as a carbon source to produce graphene functionalized with ferrocene in a composite form to enhance its water treatment potential. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy, X-ray diffraction (XRD), ultraviolet-visible, Fourier transform infrared spectroscopy, zeta potential, thermogravimetric analysis, and Raman techniques have been used to characterize the produced materials. SEM investigations confirmed the formation of multiple sheets of the graphene composite. Data collected from the zeta potential revealed that graphene was supported with a negative surface charge that maintains its stability while XRD elucidated that graphene characteristic peaks were evident at 2θ = 22.4 and 22.08° using palm leaves and fibers, respectively. Batch adsorption experiments were conducted to find out the most suitable conditions to remove PO4 3- from wastewater by applying different parameters, including pH, adsorbent dose, initial concentration, and time. Their effect on the adsorption process was also investigated. Results demonstrated that the best adsorption capacity was 58.93 mg/g (removal percentage: 78.57%) using graphene derived from palm fibers at 15 mg L-1 initial concentration, pH = 3, dose = 10 mg, and 60 min contact time. Both linear and non-linear forms of kinetic and isotherm models were investigated. The adsorption process obeyed the pseudo-second-order kinetic model and was well fitted to the Langmuir isotherm.
Collapse
Affiliation(s)
- Nourhan El-Maghrabi
- Environmental
Sciences Department, Faculty of Science, Alexandria University, Alexandria21511, Egypt
- Green
Technology Group, Faculty of Science, Alexandria
University, Alexandria21511, Egypt
- ,
| | - Manal Fawzy
- Environmental
Sciences Department, Faculty of Science, Alexandria University, Alexandria21511, Egypt
- Green
Technology Group, Faculty of Science, Alexandria
University, Alexandria21511, Egypt
- National
Biotechnology Network of Expertise (NBNE), Academy of Scientific Research and Technology (ASRT), Cairo11694, Egypt
| | - Alaa El Din Mahmoud
- Environmental
Sciences Department, Faculty of Science, Alexandria University, Alexandria21511, Egypt
- Green
Technology Group, Faculty of Science, Alexandria
University, Alexandria21511, Egypt
| |
Collapse
|
6
|
A MOF-based trap with strong affinity toward low-concentration heavy metal ions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Mallick SP, Hussein FB, Husted S, Mayer BK. Adsorption of recalcitrant phosphorus compounds using the phosphate-selective binding-protein PstS. CHEMOSPHERE 2022; 304:135311. [PMID: 35709849 DOI: 10.1016/j.chemosphere.2022.135311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Currently available wastewater phosphorus (P) treatment technologies target removal of reactive forms of P. Selective adsorption of more recalcitrant soluble non-reactive phosphorus (sNRP) can improve P removal and recovery. A phosphate-selective phosphate-binding protein (PBP), PstS, was immobilized onto NHS-activated beads to assess the ability of this novel bioadsorbent to remove (adsorb) and subsequently recover (desorb) a range of sNRP compounds. Four sNRP compounds representative of wastewater sNRP were selected for use in this study: phytic acid (PA), sodium triphosphate (TrP), beta-glycerol phosphate (BGP), and sodium hexametaphosphate (HMP). Using PBP, adsorption of all sNRP compounds was thermodynamically favorable. The PBP had nearly equivalent binding affinity for PA compared to PBP's typical target, orthophosphate, although it had less affinity for the other sNRP compounds. Adsorption followed pseudo-second order reaction kinetics, with 95% of maximum adsorption occurring within 4 min. This was substantially faster sNRP adsorption compared to other adsorbents in the literature. Adsorption was modeled using the Langmuir isotherm, reflecting that one phosphate molecule attached to one PBP binding site. Notably, this selective 1:1 attachment resulted in higher total P removal for sNRP molecules with high P content. The binding site lost activity with increasing pH, and as such, highest desorption was achieved at pH 12, making the system amenable to sNRP removal as well as controlled recovery.
Collapse
Affiliation(s)
- Synthia P Mallick
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 West Wisconsin Avenue, Milwaukee, WI, 53233, USA.
| | - Faten B Hussein
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 West Wisconsin Avenue, Milwaukee, WI, 53233, USA.
| | - Shayla Husted
- Department of Biological Sciences, Marquette University, 1428 W. Clybourn St., Milwaukee, WI, 53233, USA.
| | - Brooke K Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 West Wisconsin Avenue, Milwaukee, WI, 53233, USA.
| |
Collapse
|
8
|
Bio-Inspired phosphate adsorption by Copper-Decorated weak base anion exchanger. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
9
|
Nie M, Li Y, Jia A, Zhang J, Ran W, Yang CZS, Wang W. Cadmium removal from wastewater by foamed magnetic solid waste-based sulfoaluminate composite biochar: preparation, performance, and mechanism. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.08.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
10
|
“Twin Lotus Flower” Adsorbents Derived from LaFe Cyanometallate for High-Performance Phosphorus Removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120924] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
11
|
Hussein FB, Mayer BK. Fixed-bed column study of phosphate adsorption using immobilized phosphate-binding protein. CHEMOSPHERE 2022; 295:133908. [PMID: 35143858 DOI: 10.1016/j.chemosphere.2022.133908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Bio-adsorption using high-affinity phosphate-binding proteins (PBP) has demonstrated effective phosphorus removal and recovery in batch-scale tests. Subsequent optimization of design and performance of fixed-bed column systems is essential for scaling up and implementation. Here, continuous-flow fixed-bed column tests were used to investigate the adsorption of inorganic phosphate (orthophosphate, Pi) using phosphate-binding proteins immobilized on resin (PBP-NHS) targeting Pi removal to ultra-low levels followed by recovery. Time to breakthrough decreased with higher influent Pi concentration, smaller bed volume, and higher influent flow rates. The Thomas and Yoon-Nelson breakthrough models adequately described PBP-NHS resin performance with a correlation coefficient of R2 > 0.95. The sharp S-shape of the breakthrough curves for both Pi-only solution and multi-ion solution indicated highly favorable and selective separation of Pi using PBP-NHS resin, beyond that achieved using LayneRT™, a commercial ion exchange resin. The Pi adsorption capacity of the PBP-NHS column was unaffected by competing anions, whereas capacity of the LayneRT™ column dropped by 20%. Tertiary wastewater effluent was also successfully treated in PBP-NHS column tests with a typical S-shaped breakthrough curve. Operating the fixed-bed column in multi-cycle mode evidenced the reusability of PBP-NHS resin with no significant decline in column performance. The results of this study contribute to efforts to scale up designs of PBP-NHS adsorption systems.
Collapse
Affiliation(s)
- Faten B Hussein
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 W Wisconsin Ave, Milwaukee, WI, 53233, USA
| | - Brooke K Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 W Wisconsin Ave, Milwaukee, WI, 53233, USA.
| |
Collapse
|
12
|
Wang P, Li L, Tian Y, Sun L, Zhan W, Chen S, Zhang J, Zuo W. Three-dimensional graphene/La(OH) 3-nanorod aerogel adsorbent by self-assembly process for enhanced removal and recovery of phosphate in wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:152124. [PMID: 34871676 DOI: 10.1016/j.scitotenv.2021.152124] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
Removal and recovery of phosphorus (P) from wastewater is beneficial to both environmental protection and resource sustainability. Enriching the low concentration of P in wastewater will greatly facilitate the effective recovery of P. To enhance the adsorption performance and recyclability of adsorbents for low concentration P-containing wastewater, a novel three-dimensional (3D) graphene/La(OH)3-nanorod aerogel (GLA) was prepared by a unique self-assembly process in this study. Benefiting from the large specific surface area of graphene aerogel, which provides sufficient loading sites for the favorable dispersion of La(OH)3 nanorods, the GLA achieves an excellent P adsorption capacity of 76.85 mg/g. It is also highly selective for P, with adsorption capacity reduced by only 14% and 11% under the interference of high concentration of dissolved organic matter or multiple competing anions respectively. Further mechanistic investigation revealed that the whole adsorption process consists of three stages: (1) ion-exchange process; (2) LaP inter-sphere coordination process; and (3) crystal evolution process. In the continuous flow adsorption-desorption cycles, the P concentration was concentrated ~25 times that of the feeding water (2 mg P/L). To our knowledge, this is the first time that La-modified graphene aerogel has been studied for P recovery. This provides a new method for the P removal and recovery of low concentration P-containing wastewater.
Collapse
Affiliation(s)
- Pu Wang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Lipin Li
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Yu Tian
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Li Sun
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; Tianjin Key Laboratory of Clean Energy and Pollution Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, PR China
| | - Wei Zhan
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Shixuan Chen
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Jun Zhang
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Wei Zuo
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin 150090, PR China
| |
Collapse
|
13
|
Ahmed S, Zhang Y, Wu B, Zheng Z, Leung CF, Choy TY, Kwok YT, Lo IMC. Scaled-up development of magnetically recyclable Fe 3O 4/La(OH) 3 composite for river water phosphate removal: From bench-scale to pilot-scale study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 791:148281. [PMID: 34119786 DOI: 10.1016/j.scitotenv.2021.148281] [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: 02/09/2021] [Revised: 04/19/2021] [Accepted: 06/02/2021] [Indexed: 06/12/2023]
Abstract
The use of magnetic lanthanum-based materials for phosphate removal from river water has gained increasing attention. However, challenges to produce and use lanthanum-based materials in large-scale or pilot-scale studies remain. In this work, a kilogram-scale Fe3O4/La(OH)3 magnetically recyclable composite for removing phosphate from river water was developed through a low-temperature precipitation route. The composite was used to remove phosphate from river water at both bench- and pilot-scales. Based on the bench-scale tests, the developed Fe3O4/La(OH)3 composite was found to have excellent magnetic particle separation efficiency (>98%) and a sorption capacity of 11.77 mg/g for phosphate. A 1.0 g/L dosage of the composite in the river water sample was able to selectively reduce the phosphate level from 0.089 to 0.005 mg/L in 60 min over five consecutive adsorption cycles. At the pilot-scale, the Fe3O4/La(OH)3 composite only achieved 36.0% phosphate removal efficiency, which is considerably different from the bench-scale results over an operational time of five months and a total treatment volume of 300 m3. This significantly reduced removal efficiency is mainly attributable to turbidity, suspended solids, and organic matter in the river water and the deteriorated magnetic separation efficiency. This study revealed potential challenges and shed new insights on moving magnetic nanocomposite-based technology from the bench-scale to the pilot-scale, which can inspire new designs for the application of similar technology.
Collapse
Affiliation(s)
- Saeed Ahmed
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yanyang Zhang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Baile Wu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Zexiao Zheng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Chui-Fan Leung
- Water Supplies Department, Hong Kong Special Administrative Region, China
| | - Tak-Yip Choy
- Water Supplies Department, Hong Kong Special Administrative Region, China
| | - Yau-Ting Kwok
- Water Supplies Department, Hong Kong Special Administrative Region, China
| | - Irene M C Lo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong, China.
| |
Collapse
|
14
|
Kim HS, Jeong SS, Lee JG, Yoon JH, Lee SP, Kim KR, Kim SC, Kirkham MB, Yang JE. Biologically produced sulfur as a novel adsorbent to remove Cd 2+ from aqueous solutions. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126470. [PMID: 34216960 DOI: 10.1016/j.jhazmat.2021.126470] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/20/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
Biological desulfurization processes of landfill gas yield an enormous amount of biologically produced S (BPS) as a byproduct. Capability of BPS to remove Cd2+ from aqueous solutions was tested and its removal efficiency was compared to that of granular activated carbon (GAC). Kinetics of Cd2+ removal by BPS was a two-stage process with an initial rapid adsorption showing 45% of initial Cd2+ was removed within 5 min, followed by a slower adsorption. Cadmium adsorption onto the BPS fitted the Langmuir isotherm model and maximum adsorption capacity of the BPS (63.3 mg g-1) was 1.8 times higher than that of GAC (36.1 mg g-1). Thermodynamic parameters showed that Cd2+ adsorption by BPS was favorable and endothermic. Data from XPS proved the main adsorption mechanism to be complexation of Cd2+ with sulfides in the BPS. Results demonstrated that BPS can be recycled as a novel adsorbent for Cd2+ removal from wastewater.
Collapse
Affiliation(s)
- Hyuck Soo Kim
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Seok Soon Jeong
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Jong Geon Lee
- Gangwon Institute of Health and Environment, Chuncheon 24203, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sang-Phil Lee
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kwon-Rae Kim
- Department of Smart Agro-Industry, Gyeongsang National University, Jinju 52725, Republic of Korea
| | - Sung Chul Kim
- Department of Biological Environment and Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - M B Kirkham
- Department of Agronomy, Kansas State University, Manhattan, KS 66506-0110, USA
| | - Jae E Yang
- Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea.
| |
Collapse
|
15
|
Hutchison JM, Mayer BK, Vega M, Chacha WE, Zilles JL. Making Waves: Biocatalysis and Biosorption: Opportunities and Challenges Associated with a New Protein-Based Toolbox for Water and Wastewater Treatment. WATER RESEARCH X 2021; 12:100112. [PMID: 34409281 PMCID: PMC8361250 DOI: 10.1016/j.wroa.2021.100112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/11/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
New water and wastewater treatment technologies are required to meet the demands created by emerging contaminants and resource recovery needs, yet technology development is a slow and uncertain process. Through evolution, nature has developed highly selective and fast-acting proteins that could help address these issues, but research and application have been limited, often due to assumptions about stability and economic feasibility. Here we highlight the potential advantages of cell-free, protein-based water and wastewater treatment processes (biocatalysis and biosorption), evaluate existing information about their economic feasibility, consider when a protein-based treatment process might be advantageous, and highlight key research needs.
Collapse
Affiliation(s)
- Justin M. Hutchison
- Department of Civil, Environmental, and Architectural Engineering, University of Kansas, 1530 W 15th St, Lawrence, KS 66045, United States
| | - Brooke K. Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, 1637 W Wisconsin Ave., Milwaukee, WI 53233, United States
| | - Marcela Vega
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, 1102 S Goodwin Ave, Urbana, IL 61801, United States
| | - Wambura E. Chacha
- Department of Civil, Environmental, and Architectural Engineering, University of Kansas, 1530 W 15th St, Lawrence, KS 66045, United States
| | - Julie L. Zilles
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, 1102 S Goodwin Ave, Urbana, IL 61801, United States
| |
Collapse
|
16
|
Venkiteshwaran K, Wells E, Mayer BK. Immobilized phosphate-binding protein can effectively discriminate against arsenate during phosphate adsorption and recovery. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:1173-1178. [PMID: 33316118 DOI: 10.1002/wer.1498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/23/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
There is a strong impetus to establish a circular phosphorus economy by securing internally renewable phosphate (Pi ) resources for use as agricultural fertilizers. Reversible Pi adsorption technologies such as ion exchange can remove and recover Pi from water/wastewater for reuse. However, existing reversible adsorbents cannot effectively discriminate against arsenate (As(V)) due to the similarity between As(V) and Pi chemical structure. If As(V) is co-recovered with Pi , the value of the recovered products for agricultural reuse is low. The objective of this study was to construct an immobilized phosphate-binding protein (PBP)-based Pi removal and recovery system and analyze its selectivity for Pi adsorption in the presence of As(V). A range of conditions was tested, including independent, sequential, and simultaneous exposure of the two oxyanions to immobilized PBP (PBP resin). The purity of the recovered Pi product was assessed after inducing controlled desorption of the adsorbed oxyanions at high pH (pH 12.5). Pi constituted more than 97% of the adsorbed oxyanions in the recovered product, even when As(V) was initially present at twofold higher concentrations than Pi . Therefore, PBP resin has potential to selectively remove Pi , as well as release high-purity Pi free of As(V) contamination suitable for subsequent agricultural reuse. PRACTITIONER POINTS: Existing reversible phosphate (Pi ) adsorbents cannot effectively discriminate against arsenate (As(V)) due to the similarity in their chemical structure. Co-recovery of As(V) with Pi can reduce the recovered product's reuse as a fertilizer. An immobilized phosphate-binding protein (PBP)-based system can be highly selective for Pi even in the presence of As(V). Pi constituted more than 97% of the recovered product, even when As(V) was present at 2-fold higher concentrations than Pi . Immobilized PBP offers advantages over existing Pi adsorbents by providing high-purity Pi products free of As(V) contamination for reuse.
Collapse
Affiliation(s)
- Kaushik Venkiteshwaran
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, USA
| | - Erin Wells
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, USA
| | - Brooke K Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, USA
| |
Collapse
|
17
|
Mayer BK. Editorial: Let's talk about P(ee). WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:656-657. [PMID: 33848020 DOI: 10.1002/wer.1563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
Phosphorus recycling and reuse are imperative, and the water industry has an important role to play in this effort. Technologies capable of removing phosphorus to ultra-low levels and subsequent recovery for phosphorus reuse are needed. Inorganic ion exchange resins and organic bioadsorbents are promising for phosphorus removal and recovery as part of the waste-to-resource paradigm.
Collapse
Affiliation(s)
- Brooke K Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, USA
| |
Collapse
|