复合反应器中高浓度有机废水对硝化作用的影响

Influence of high concentration organic wastewater on nitrification in the hybrid biological reactor

选用悬浮球形填料作为复合生物反应器的填料,研究有机物去除和硝化作用。研究显示,将进水COD质量浓度从400 mg/L逐渐增加到2 000 mg/L,进水NH3-N质量浓度维持在30 mg/L^45 mg/L运行20天,随着COD质量浓度的逐渐增高,NH3-N的去除率从82%左右降低到-25.9%,硝化反应能力呈逐渐减小的总体趋势。

The suspended spherical filler was selected as microbe carrier for the hybrid biological reactor to study the organic matter removal and nitrification.The study of the influences of high concentration organic wastewater on nitrification shows that： When the influent COD concentration increased from 400 mg/L to 2 000 mg/L in 20 days,the NH3-N concentration is stable on 31 mg/L^45 mg/L.But the removal rate of NH3-N is gradually decreased from 82% to-25.9% with the increasing of COD concentration.The overall nitrification capacity is gradually weekened.