supported by Guizhou Science and Technology Fund Project 2008-2236;the Scientific and Technological Project under Science and Technology Department of Guizhou Province [SZ(2008)3073];Guizhou University’s Scientific Research Personnel Introduction Pro-gram 2008-029
Low and high-concentration nitric wastewater can induce stable nitrite accumulation and realize the nitrification system, with the nitrite accumulation rate between 50% and 90%. In the low-concentration nitrite nitrif...