Removal of arsenic from ground water by iron oxide-coated sand
作者： Arun Joshi , Malay Chaudhuri
DOI: 10.1061/(ASCE)0733-9372(1996)122:8(769)
关键词: Groundwater 、 Small systems 、 Environmental engineering 、 Water treatment 、 Remedial action 、 Iron oxide 、 Water ph 、 Arsenic 、 Environmental chemistry 、 Chemistry
摘要: In a laboratory study, iron oxide-coated sand showed promise as medium for use in small systems or home-treatment units developing areas of the world, removing arsenic(III) and arsenic(V) from ground water. A low-cost, simple, home arsenic removal unit (material fabrication cost: Rs. 200, cost medium: 80, regeneration 5; 1 U.S. dollar = 35), containing 6 kg (4 L) sand, produced 625 610, 780 760 L water two cycles runs when influent concentration was 1.0 mg/L. detailed study addressing effects some important factors (selectivity over one another removal, pH, type competing anions, cations) on process is needed. The should be subjected to field trial assess long-term performance.
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