Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests

Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests

Arsenic (As) contamination of surface water has long been a threat to human health. Extensive studies were made at the bench-scale for the removal of As from water. Commonly-used materials for the removal of As include Al and Fe hydroxides that will form complexes with As. Recently, modification of...

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Main Authors: Libing Liao, Zhaohui Li, Guocheng Lv, Lefu Mei, Haijuan Wang, Shuliu Shi, Yaozu Wei, Xiaoyu Wang, Ping Ning, Yanke Wei
Format: Article
Language:English
Published: MDPI AG 2018-04-01
Series:Water
Subjects:
arsenic
ionic liquid
modification
permeable reactive wall
retardation
zeolite
Online Access:http://www.mdpi.com/2073-4441/10/4/448
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spelling doaj-bf9582873fc5418bbd7ff4928d6908702020-11-24T21:41:18ZengMDPI AGWater2073-44412018-04-0110444810.3390/w10040448w10040448Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot TestsLibing Liao0Zhaohui Li1Guocheng Lv2Lefu Mei3Haijuan Wang4Shuliu Shi5Yaozu Wei6Xiaoyu Wang7Ping Ning8Yanke Wei9Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaBeijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaArsenic (As) contamination of surface water has long been a threat to human health. Extensive studies were made at the bench-scale for the removal of As from water. Commonly-used materials for the removal of As include Al and Fe hydroxides that will form complexes with As. Recently, modification of Earth materials to reverse their surface charge to positive to reduce the mobility of arsenite and arsenate also attracted great attention. In 2008, a severe As contamination was reported in the lake of Yangzonghai, Yunnan, China. Although the As concentration was maintained below 0.05 mg/L for the lake, after 28 months of restoration, the discharge of mine tailings from a nearby fertilizer plants was still one of the contributors to the As in the lake. In this study, zeolite was modified by ionic liquids and the modified materials were installed as a permeable reactive wall (PRW) to contain the As movement. Preliminary results showed more than an 80% reduction in As after surface water moved through the PWR over the six-month sampling period confirming the effectiveness of ionic liquid-modified Earth materials for environmental application.http://www.mdpi.com/2073-4441/10/4/448arsenicionic liquidmodificationpermeable reactive wallretardationzeolite
collection DOAJ
language English
format Article
sources DOAJ
author Libing Liao
Zhaohui Li
Guocheng Lv
Lefu Mei
Haijuan Wang
Shuliu Shi
Yaozu Wei
Xiaoyu Wang
Ping Ning
Yanke Wei
spellingShingle Libing Liao
Zhaohui Li
Guocheng Lv
Lefu Mei
Haijuan Wang
Shuliu Shi
Yaozu Wei
Xiaoyu Wang
Ping Ning
Yanke Wei
Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
Water
arsenic
ionic liquid
modification
permeable reactive wall
retardation
zeolite
author_facet Libing Liao
Zhaohui Li
Guocheng Lv
Lefu Mei
Haijuan Wang
Shuliu Shi
Yaozu Wei
Xiaoyu Wang
Ping Ning
Yanke Wei
author_sort Libing Liao
title Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
title_short Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
title_full Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
title_fullStr Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
title_full_unstemmed Using Ionic Liquid Modified Zeolite as a Permeable Reactive Wall to Limit Arsenic Contamination of a Freshwater Lake—Pilot Tests
title_sort using ionic liquid modified zeolite as a permeable reactive wall to limit arsenic contamination of a freshwater lake—pilot tests
publisher MDPI AG
series Water
issn 2073-4441
publishDate 2018-04-01
description Arsenic (As) contamination of surface water has long been a threat to human health. Extensive studies were made at the bench-scale for the removal of As from water. Commonly-used materials for the removal of As include Al and Fe hydroxides that will form complexes with As. Recently, modification of Earth materials to reverse their surface charge to positive to reduce the mobility of arsenite and arsenate also attracted great attention. In 2008, a severe As contamination was reported in the lake of Yangzonghai, Yunnan, China. Although the As concentration was maintained below 0.05 mg/L for the lake, after 28 months of restoration, the discharge of mine tailings from a nearby fertilizer plants was still one of the contributors to the As in the lake. In this study, zeolite was modified by ionic liquids and the modified materials were installed as a permeable reactive wall (PRW) to contain the As movement. Preliminary results showed more than an 80% reduction in As after surface water moved through the PWR over the six-month sampling period confirming the effectiveness of ionic liquid-modified Earth materials for environmental application.
topic arsenic
ionic liquid
modification
permeable reactive wall
retardation
zeolite
url http://www.mdpi.com/2073-4441/10/4/448
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