期刊
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
卷 76, 期 10, 页码 1437-1452出版社
SERBIAN CHEMICAL SOC
DOI: 10.2298/JSC101029122J
关键词
adsorption; arsenic removal; arsenic remediation; low cost sorbents
资金
- Ministry of Science and Technological Development of the Republic of Serbia
Inorganic arsenic removal from water using low-cost adsorbents is presented in this paper. Selective removal of As(III) and As(V) from water was performed with natural materials (zeolite, bentonite, sepiolite, pyrolusite and limonite) and industrial by-products (waste filter sand as a water treatment residual and blast furnace slag from steel production); all inexpensive and locally available. Kinetic and equilibrium studies were realized using batch system techniques under conditions that are likely to occur in real water treatment systems. The natural zeolite and the industrial by-products were found to be good and inexpensive sorbents for arsenic while bentonite and sepiolite clays showed little affinity towards arsenic. The highest maximum sorption capacities were obtained for natural zeolite, 4.07 mg As(V) g(-1), and waste iron slag, 4.04 mg As(V) g(-1).
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