anaerobic zone
anaerobic zone
anaerobic zone
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Concentration of P inmg/LRESULTS FROM EBPR OPERATION ATKALISPELL, MTKalispell MT Influent and Effluent PhosphorusInfl. PEffl.P65432101 2 3 4 5 6 7 8Years since 1993Effluent TPannual average0.11 mg/L in2003 withfiltration andno chemicalsBiological treatment plus sand filtration08/06/08