Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters
Arsenic (As), a poisonous and carcinogenic heavy metal, affects human health and the environment. Numerous technologies can remove As from drinking water. Adsorption is the most appealing option for decentralized water treatment systems (DWTS) for small communities and household applications because...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Clean Technologies |
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| Online Access: | https://www.mdpi.com/2571-8797/5/1/19 |
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| author | Roya Sadat Neisan Noori M. Cata Saady Carlos Bazan Sohrab Zendehboudi Abbas Al-nayili Bassim Abbassi Pritha Chatterjee |
| author_facet | Roya Sadat Neisan Noori M. Cata Saady Carlos Bazan Sohrab Zendehboudi Abbas Al-nayili Bassim Abbassi Pritha Chatterjee |
| author_sort | Roya Sadat Neisan |
| collection | DOAJ |
| description | Arsenic (As), a poisonous and carcinogenic heavy metal, affects human health and the environment. Numerous technologies can remove As from drinking water. Adsorption is the most appealing option for decentralized water treatment systems (DWTS) for small communities and household applications because it is reliable, affordable, and environmentally acceptable. Sustainable low-cost adsorbents make adsorption more appealing for DWTS to address some of the small communities’ water-related issues. This review contains in-depth information on the classification and toxicity of As species and different treatment options, including ion exchange, membrane technologies, coagulation-flocculation, oxidation, and adsorption, and their effectiveness under various process parameters. Specifically, different kinetic and isotherm models were compared for As adsorption. The characterization techniques that determine various adsorbents’ chemical and physical characteristics were investigated. This review discusses the parameters that impact adsorption, such as solution pH, temperature, initial As concentration, adsorbent dosage, and contact time. Finally, low-cost adsorbents application for the removal of As was discussed. Adsorption was found to be a suitable, cost-effective, and reliable technology for DWTS for small and isolated communities. New locally developed and low-cost adsorbents are promising and could support sustainable adsorption applications. |
| first_indexed | 2024-03-11T06:44:02Z |
| format | Article |
| id | doaj.art-bd241ec0fb5e4b22bff81033caf21ea8 |
| institution | Directory Open Access Journal |
| issn | 2571-8797 |
| language | English |
| last_indexed | 2024-03-11T06:44:02Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Clean Technologies |
| spelling | doaj.art-bd241ec0fb5e4b22bff81033caf21ea82023-11-17T10:23:59ZengMDPI AGClean Technologies2571-87972023-03-015135240210.3390/cleantechnol5010019Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective ParametersRoya Sadat Neisan0Noori M. Cata Saady1Carlos Bazan2Sohrab Zendehboudi3Abbas Al-nayili4Bassim Abbassi5Pritha Chatterjee6Faculty of Engineering and Applied Science, Memorial University, St. John’s, NL A1B 3X5, CanadaFaculty of Engineering and Applied Science, Memorial University, St. John’s, NL A1B 3X5, CanadaFaculty of Business Administration, Memorial University, St. John’s, NL A1B 3X5, CanadaDepartment of Process Engineering, Memorial University, St. John’s, NL A1B 3X5, CanadaChemistry Department, College of Education, University of Al-Qadisiyah, Al Diwaniyah 58001, IraqCollege of Engineering and Physical Sciences, School of Engineering, University of Guelph, Guelph, ON N1G 2W1, CanadaDepartment of Civil Engineering, Indian Institute of Technology Hyderabad, Kandi 502285, IndiaArsenic (As), a poisonous and carcinogenic heavy metal, affects human health and the environment. Numerous technologies can remove As from drinking water. Adsorption is the most appealing option for decentralized water treatment systems (DWTS) for small communities and household applications because it is reliable, affordable, and environmentally acceptable. Sustainable low-cost adsorbents make adsorption more appealing for DWTS to address some of the small communities’ water-related issues. This review contains in-depth information on the classification and toxicity of As species and different treatment options, including ion exchange, membrane technologies, coagulation-flocculation, oxidation, and adsorption, and their effectiveness under various process parameters. Specifically, different kinetic and isotherm models were compared for As adsorption. The characterization techniques that determine various adsorbents’ chemical and physical characteristics were investigated. This review discusses the parameters that impact adsorption, such as solution pH, temperature, initial As concentration, adsorbent dosage, and contact time. Finally, low-cost adsorbents application for the removal of As was discussed. Adsorption was found to be a suitable, cost-effective, and reliable technology for DWTS for small and isolated communities. New locally developed and low-cost adsorbents are promising and could support sustainable adsorption applications.https://www.mdpi.com/2571-8797/5/1/19heavy metal removalwater treatmentlow-cost adsorbentsarsenic adsorptionion-exchangemembrane technologies |
| spellingShingle | Roya Sadat Neisan Noori M. Cata Saady Carlos Bazan Sohrab Zendehboudi Abbas Al-nayili Bassim Abbassi Pritha Chatterjee Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters Clean Technologies heavy metal removal water treatment low-cost adsorbents arsenic adsorption ion-exchange membrane technologies |
| title | Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters |
| title_full | Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters |
| title_fullStr | Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters |
| title_full_unstemmed | Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters |
| title_short | Arsenic Removal by Adsorbents from Water for Small Communities’ Decentralized Systems: Performance, Characterization, and Effective Parameters |
| title_sort | arsenic removal by adsorbents from water for small communities decentralized systems performance characterization and effective parameters |
| topic | heavy metal removal water treatment low-cost adsorbents arsenic adsorption ion-exchange membrane technologies |
| url | https://www.mdpi.com/2571-8797/5/1/19 |
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