Evaluating of arsenic(V) removal from water by weak-base anion exchange adsorbents
Arsenic contamination of groundwater has been called the largest mass poisoning calamity in human history and creates severe health problems. The effective adsorbents are imperative in response to the widespread removal of toxic arsenic exposure through drinking water. Evaluation of arsenic(V) remov...
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| Veröffentlicht in: | Environmental science and pollution research international 2013-01, Vol.20 (1), p.421-430 |
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| creator | Awual, M. Rabiul Hossain, M. Amran Shenashen, M. A. Yaita, Tsuyoshi Suzuki, Shinichi Jyo, Akinori |
| description | Arsenic contamination of groundwater has been called the largest mass poisoning calamity in human history and creates severe health problems. The effective adsorbents are imperative in response to the widespread removal of toxic arsenic exposure through drinking water. Evaluation of arsenic(V) removal from water by weak-base anion exchange adsorbents was studied in this paper, aiming at the determination of the effects of pH, competing anions, and feed flow rates to improvement on remediation. Two types of weak-base adsorbents were used to evaluate arsenic(V) removal efficiency both in batch and column approaches. Anion selectivity was determined by both adsorbents in batch method as equilibrium As(V) adsorption capacities. Column studies were performed in fixed-bed experiments using both adsorbent packed columns, and kinetic performance was dependent on the feed flow rate and competing anions. The weak-base adsorbents clarified that these are selective to arsenic(V) over competition of chloride, nitrate, and sulfate anions. The solution pH played an important role in arsenic(V) removal, and a higher pH can cause lower adsorption capacities. A low concentration level of arsenic(V) was also removed by these adsorbents even at a high flow rate of 250–350 h
−1
. Adsorbed arsenic(V) was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for the next adsorption operation after rinsing with water. The weak-base anion exchange adsorbents are to be an effective means to remove arsenic(V) from drinking water. The fast adsorption rate and the excellent adsorption capacity in the neutral pH range will render this removal technique attractive in practical use in chemical industry. |
| doi_str_mv | 10.1007/s11356-012-0936-7 |
| format | Article |
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−1
. Adsorbed arsenic(V) was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for the next adsorption operation after rinsing with water. The weak-base anion exchange adsorbents are to be an effective means to remove arsenic(V) from drinking water. The fast adsorption rate and the excellent adsorption capacity in the neutral pH range will render this removal technique attractive in practical use in chemical industry.</description><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-012-0936-7</identifier><identifier>PMID: 22562349</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Adsorbents ; Adsorption ; Anion exchange ; Anions ; Aquatic Pollution ; Arsenic ; Arsenic - analysis ; Arsenic - chemistry ; Arsenic removal ; Atmospheric Protection/Air Quality Control/Air Pollution ; Chemical industry ; Chloride ; Drinking behavior ; Drinking water ; Earth and Environmental Science ; Ecotoxicology ; Environment ; Environmental Chemistry ; Environmental Health ; Environmental science ; Equilibrium ; Flow rates ; Groundwater ; Groundwater pollution ; Health problems ; High flow ; Hydrogen-Ion Concentration ; Ion Exchange Resins - chemistry ; Kinetics ; Ligands ; Nitrates ; Performance evaluation ; pH effects ; Poisoning ; Research Article ; Resins ; Studies ; Waste Water Technology ; Water Management ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - chemistry ; Water Pollution Control ; Water Purification - methods ; Water treatment</subject><ispartof>Environmental science and pollution research international, 2013-01, Vol.20 (1), p.421-430</ispartof><rights>Springer-Verlag 2012</rights><rights>Springer-Verlag Berlin Heidelberg 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c475t-14925dadaadb351c67a4174940f5fd856810552454997992be7d1ae9c183ef083</citedby><cites>FETCH-LOGICAL-c475t-14925dadaadb351c67a4174940f5fd856810552454997992be7d1ae9c183ef083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11356-012-0936-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11356-012-0936-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22562349$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Awual, M. Rabiul</creatorcontrib><creatorcontrib>Hossain, M. Amran</creatorcontrib><creatorcontrib>Shenashen, M. A.</creatorcontrib><creatorcontrib>Yaita, Tsuyoshi</creatorcontrib><creatorcontrib>Suzuki, Shinichi</creatorcontrib><creatorcontrib>Jyo, Akinori</creatorcontrib><title>Evaluating of arsenic(V) removal from water by weak-base anion exchange adsorbents</title><title>Environmental science and pollution research international</title><addtitle>Environ Sci Pollut Res</addtitle><addtitle>Environ Sci Pollut Res Int</addtitle><description>Arsenic contamination of groundwater has been called the largest mass poisoning calamity in human history and creates severe health problems. The effective adsorbents are imperative in response to the widespread removal of toxic arsenic exposure through drinking water. Evaluation of arsenic(V) removal from water by weak-base anion exchange adsorbents was studied in this paper, aiming at the determination of the effects of pH, competing anions, and feed flow rates to improvement on remediation. Two types of weak-base adsorbents were used to evaluate arsenic(V) removal efficiency both in batch and column approaches. Anion selectivity was determined by both adsorbents in batch method as equilibrium As(V) adsorption capacities. Column studies were performed in fixed-bed experiments using both adsorbent packed columns, and kinetic performance was dependent on the feed flow rate and competing anions. The weak-base adsorbents clarified that these are selective to arsenic(V) over competition of chloride, nitrate, and sulfate anions. The solution pH played an important role in arsenic(V) removal, and a higher pH can cause lower adsorption capacities. A low concentration level of arsenic(V) was also removed by these adsorbents even at a high flow rate of 250–350 h
−1
. Adsorbed arsenic(V) was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for the next adsorption operation after rinsing with water. The weak-base anion exchange adsorbents are to be an effective means to remove arsenic(V) from drinking water. The fast adsorption rate and the excellent adsorption capacity in the neutral pH range will render this removal technique attractive in practical use in chemical industry.</description><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Anion exchange</subject><subject>Anions</subject><subject>Aquatic Pollution</subject><subject>Arsenic</subject><subject>Arsenic - analysis</subject><subject>Arsenic - chemistry</subject><subject>Arsenic removal</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Chemical industry</subject><subject>Chloride</subject><subject>Drinking behavior</subject><subject>Drinking water</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Environmental science</subject><subject>Equilibrium</subject><subject>Flow rates</subject><subject>Groundwater</subject><subject>Groundwater pollution</subject><subject>Health problems</subject><subject>High flow</subject><subject>Hydrogen-Ion Concentration</subject><subject>Ion Exchange Resins - chemistry</subject><subject>Kinetics</subject><subject>Ligands</subject><subject>Nitrates</subject><subject>Performance evaluation</subject><subject>pH effects</subject><subject>Poisoning</subject><subject>Research Article</subject><subject>Resins</subject><subject>Studies</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Pollution Control</subject><subject>Water Purification - methods</subject><subject>Water treatment</subject><issn>0944-1344</issn><issn>1614-7499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kMtOwzAQRS0EoqXwAWyQJTawMHj8iOslqspDqoSEgK3lJE5JaZJiJ5T-Pa5SEBtWV6O5c2fmIHQK9AooVdcBgMuEUGCEap4QtYeGkIAgSmi9j4ZUC0GACzFARyEsKGVUM3WIBozJhHGhh-hp-mmXnW3Leo6bAlsfXF1mF6-X2LuqiT1c-KbCa9s6j9MNXjv7TlIbHLZ12dTYfWVvtp7HMg-NT13dhmN0UNhlcCc7HaGX2-nz5J7MHu8eJjczkgklWwJCM5nb3No85RKyRFkB8XBBC1nkY5mMgUrJhIy_KK1Z6lQO1ukMxtwVdMxH6LzPXfnmo3OhNYum83VcaYAnklIZJbqgd2W-CcG7wqx8WVm_MUDNlqLpKZpI0WwpGhVnznbJXVq5_HfiB1s0sN4QYit-7_-s_jf1GxMde4Y</recordid><startdate>20130101</startdate><enddate>20130101</enddate><creator>Awual, M. 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Rabiul</au><au>Hossain, M. Amran</au><au>Shenashen, M. A.</au><au>Yaita, Tsuyoshi</au><au>Suzuki, Shinichi</au><au>Jyo, Akinori</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluating of arsenic(V) removal from water by weak-base anion exchange adsorbents</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><addtitle>Environ Sci Pollut Res Int</addtitle><date>2013-01-01</date><risdate>2013</risdate><volume>20</volume><issue>1</issue><spage>421</spage><epage>430</epage><pages>421-430</pages><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>Arsenic contamination of groundwater has been called the largest mass poisoning calamity in human history and creates severe health problems. The effective adsorbents are imperative in response to the widespread removal of toxic arsenic exposure through drinking water. Evaluation of arsenic(V) removal from water by weak-base anion exchange adsorbents was studied in this paper, aiming at the determination of the effects of pH, competing anions, and feed flow rates to improvement on remediation. Two types of weak-base adsorbents were used to evaluate arsenic(V) removal efficiency both in batch and column approaches. Anion selectivity was determined by both adsorbents in batch method as equilibrium As(V) adsorption capacities. Column studies were performed in fixed-bed experiments using both adsorbent packed columns, and kinetic performance was dependent on the feed flow rate and competing anions. The weak-base adsorbents clarified that these are selective to arsenic(V) over competition of chloride, nitrate, and sulfate anions. The solution pH played an important role in arsenic(V) removal, and a higher pH can cause lower adsorption capacities. A low concentration level of arsenic(V) was also removed by these adsorbents even at a high flow rate of 250–350 h
−1
. Adsorbed arsenic(V) was quantitatively eluted with 1 M HCl acid and regenerated into hydrochloride form simultaneously for the next adsorption operation after rinsing with water. The weak-base anion exchange adsorbents are to be an effective means to remove arsenic(V) from drinking water. The fast adsorption rate and the excellent adsorption capacity in the neutral pH range will render this removal technique attractive in practical use in chemical industry.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>22562349</pmid><doi>10.1007/s11356-012-0936-7</doi><tpages>10</tpages></addata></record> |
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| subjects | Adsorbents Adsorption Anion exchange Anions Aquatic Pollution Arsenic Arsenic - analysis Arsenic - chemistry Arsenic removal Atmospheric Protection/Air Quality Control/Air Pollution Chemical industry Chloride Drinking behavior Drinking water Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Environmental science Equilibrium Flow rates Groundwater Groundwater pollution Health problems High flow Hydrogen-Ion Concentration Ion Exchange Resins - chemistry Kinetics Ligands Nitrates Performance evaluation pH effects Poisoning Research Article Resins Studies Waste Water Technology Water Management Water Pollutants, Chemical - analysis Water Pollutants, Chemical - chemistry Water Pollution Control Water Purification - methods Water treatment |
| title | Evaluating of arsenic(V) removal from water by weak-base anion exchange adsorbents |
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