Preoxidation of As III in water

Majumder and Chaudhuri (2005) developed a tartrate citrate photocatalyst for oxidizing As(III) with sunlight. The fruit of the tree, Tamarindus indica, provided tartrate citrate that photooxidized and removed 250-260 pgL-1 of As(III) in water to less than 50pgL 1. The material is inexpensive and might have wide applications in treating domestic waters in India and other developing countries. 

Bacteria (modified) bioaccumulation Carbon powder sorbents modified with L-cysteine methyl ester FIBAN-As (Ion-exchange polymeric fibers impregnated with iron (oxy)(hydr)oxides) 

Hydrated stannic (Sn(IV)) oxide sorbent lron(lll)-impregnated granular activated carbon sorbent 

Iron (oxy)(hydr)oxide-coated sand filtration 

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