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Italiya G, Subramanian S. Role of emerging chitosan and zeolite-modified adsorbents in the removal of nitrate and phosphate from an aqueous medium: A comprehensive perspective. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2022; 86:2658-2684. [PMID: 36450679 DOI: 10.2166/wst.2022.366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Due to industrialization and population growth, freshwater supplies are diminishing and becoming impure with high organic pollutant concentrations such as nitrate and phosphate, which shows a high adverse impact on aquatic and human lives. In drinking water sources, particularly groundwater, nitrate is considered as one of the major pollutants which causes methemoglobinemia (in newborn infants), carcinogenic activities and diabetes. Excess concentration of phosphate leads to eutrophication and death of aquatic species due to reduced dissolved oxygen content. Therefore, all countries must implement highly effective technologies for treating wastewater. Chitosan and zeolite are naturally occurring and cost-effective adsorbent materials with a higher surface area that exhibit greater nitrate and phosphate adsorption. Surface modification of chitosan and zeolite increases the adsorption capacity of adsorbents for the removal of both anions selectively. This paper reviews the current development of modified chitosan and zeolite adsorbents for anion adsorption, with an emphasis on modification by zero and multivalent metals and metal oxides, different surfactants, biomass-derived carbon, and natural and synthetic polymers. Multiple adsorption parameters, optimum adsorption condition, adsorption mechanism, regeneration study, research gap and future aspects have been explained for further research work.
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Affiliation(s)
- Gopal Italiya
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India, 632014 E-mail:
| | - Sangeetha Subramanian
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India, 632014 E-mail:
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You K, Yang W, Song P, Fan L, Xu S, Li B, Feng L. Lanthanum-modified magnetic oyster shell and its use for enhancing phosphate removal from water. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Li J, Fang X, Yang M, Tan W, Zhang H, Zhang Y, Li G, Wang H. The adsorption properties of functionalization vetiver grass-based activated carbon: the simultaneous adsorption of phosphate and nitrate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:40544-40554. [PMID: 32500493 DOI: 10.1007/s11356-020-09271-5] [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: 03/14/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
In this work, zirconium chloride octahydrate/CTAB/vetiver grass-activated carbon (ZR/CTAB/VGAC) was prepared from vetiver grass-activated carbon (VGAC), using zirconium chloride octahydrate (ZR) and cetyltrimethylammonium bromide (CTAB) as modifiers. The optimized conditions of the simultaneous phosphate and nitrate removal by ZR/CTAB/VGAC were discussed, including amount of adsorbent, initial concentration, pH, contact time, and temperature. The simultaneous removal efficiency of phosphate and nitrate was 96.50% and 51.17% under optimized conditions. The structural and morphology of ZR/CTAB/VGAC was investigated by using automatic volumetric adsorption analyzer (BET), scanning electron microscopy (SEM), energy dispersive x-ray analysis (EDAX), and Fourier transform infrared spectroscopy (FTIR). It was found that the removal efficiencies of phosphate and nitrate were enhanced dramatically because ZR and CTAB were introduced on the surface of VGAC after modification. Moreover, the adsorption data fitted significantly well with Freundlich isotherm model. It was described well by pseudo-second-order kinetic model. Phosphate and nitrate adsorbed via chemisorption (ion exchange) by ZR, CTAB, and functional groups of the surface of ZR/CTAB/VGAC. Electrostatic adsorption of AC in ZR/CTAB/VGAC also played an important role in the adsorption process. ZR/CTAB/VGAC is an excellent adsorbent, which could be applied to remove nitrate and phosphate from wastewater.
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Affiliation(s)
- Jianmin Li
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China
| | - Xiuying Fang
- Xiangyun Comprehensive Inspection and Testing Institute, Dali, 672100, Yunnan, China
| | - Min Yang
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China
| | - Wei Tan
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China
| | - Haocheng Zhang
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China
| | - Yanyan Zhang
- Kunming Dianchi Water Treatment Co. Ltd., Kunming, 650228, Yunnan, China
| | - Guizhen Li
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China.
| | - Hongbin Wang
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, Yunnan, China.
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Zhang W, Yang X, Lin C, Feng J, Wang H, Yan W. Insight into the effect of surfactant modification on the versatile adsorption of titanate-based materials for cationic and anionic contaminants. CHEMOSPHERE 2021; 269:129383. [PMID: 33383246 DOI: 10.1016/j.chemosphere.2020.129383] [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: 10/09/2020] [Revised: 12/13/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
The new challenges to adsorption are imposed for the diversity of contaminants in wastewater in recent years. Herein, titanate-based materials (peroxide sodium titanate, PST) were modified by three different kinds of surface charged surfactant: dodecyl dimethyl betaine (BS-PST), sodium dodecyl sulphate (SDS-PST) and dodecyltrimethyl ammonium chloride (DTAC-PST) to enhance the versatile adsorption performance for four typical contaminants including ammonia nitrogen (NH4+, inorganic and cationic), phosphate (H2PO4-, inorganic and anionic), methylene blue (MB, organic and cationic) and Acid Red G (ARG, organic and anionic). The batch adsorption experiments showed that the DTAC-PST exhibited better in the removal of MB, ARG and H2PO4- than that of other adsorbents. The theoretical maximum adsorption capacity of DTAC-PST is 49.28 mg g-1 for NH4+, 34.74 mg g-1 for TP, 81.87 mg g-1 for MB and 545.81 mg g-1 for ARG. The simultaneous adsorption results showed that the concentration (10 mg L-1 of NH4+, 3 mg L-1 of TP, 50 mg L-1 of MB and 50 mg L-1 of ARG) of all the four chemicals in simulated wastewater could be controlled to be below the discharge levels in China (GB, 18918-2002) by DTAC-PST at the pH of 3.0. The FT-IR spectra demonstrated that ion exchange was the main way for NH4+ removal, however, electrostatic attraction and ligand exchange were the reason for MB adsorption. In addition, C-N+ from DTAC modification made main contribution to the excellent adsorption performance for ARG and H2PO4-. The saturated DTAC-PST could be conveniently regenerated by 0.5 mol L-1 NaOH solution and maintained about 80% of adsorption capacity after five cycles.
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Affiliation(s)
- Wenlong Zhang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xiaoyan Yang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Changzheng Lin
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jiangtao Feng
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Hongjie Wang
- Xiong'an Institute of Eco-Environment, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Wei Yan
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
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Guan Q, Deng L, Zhang D, Ning P, Kong Z, He L. Preparation of Tetraethylenepentamine‐Functionalized 4A Zeolite for effective removal of phosphate in water. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qingqing Guan
- Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming China
| | - Lihua Deng
- Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming China
| | - Dehua Zhang
- Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming China
| | - Ping Ning
- Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming China
| | - Zhaoni Kong
- Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming China
| | - Liang He
- BiomassChem Group, Faculty of Chemical Engineering Kunming University of Science and Technology Kunming Yunnan 650500 China
- The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province Kunming University of Science and Technology Kunming Yunnan 650500 China
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