ABSTRACT

ABSTRACT: Several arsenic removal strategies have been approved by the EPA as Best Available Technologies; and with the promulgation of the Arsenic Rule in 2001, these strategies are well understood and widely implemented. However, strategies for antimony removal are not as widely implemented. Bench scale testing at a remote water treatment site in Nome,Alaska showed that a single treatment process including pH adjustment and coagulation followed by low pressure filtration could be used to remove both contaminants at 90 percent removal efficiency. The treatment process highlighted here is advantageous over other treatment methods such as high pressure reverse osmosis filters because it requires less power consumption, creates less waste, and is lower in capital cost.

1 BACKGROUND