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[Study on removal of arsenic in drinking water by metal loaded materials].

Wei sheng yan jiu = Journal of hygiene research (2004-12-23)
Yuechao Zhao, Yayan Chen, Shaobin Lin, Chonglin Yao, Lan Zhang
ABSTRACT

To study the effect of metal loaded multiporous materials on the removal of arsenic in drinking water. Metal loaded materials were manufactured using active carbon, active alumina, silica gel and macroporous resin etc. as carriers and iron salts and zirconium salts etc. as activating reagents. Preparation condition as well as static and dynamic capacities of arsenic removal were examined. Active carbon and ferric nitrate were selected to prepare composite material for removal of arsenic in drinking water. Based on the state applicable limit of 0.05 mg/L for arsenic in drinking water, iron loaded active carbon tested in this study reduced arsenic at capacities of 2.94 mg/g for As(+3) and 2.56 mg/g for As(+5) in drinking waters spiked with 0.284 mg/L of As(+3) and 0.254 mg/L of As(+5) respectively. Iron loaded active carbon made from active carbon and ferric nitrate may remove arsenic in drinking water.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.95% trace metals basis
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ≥99.999% trace metals basis
Sigma-Aldrich
Iron(III) nitrate nonahydrate, BioReagent, suitable for cell culture
Supelco
Iron standard for AAS, analytical standard, 10.00 g/L Fe in nitric acid, traceable to BAM
Sigma-Aldrich
Iron(III) nitrate nonahydrate, ACS reagent, ≥98%