亚硝酸型硝化启动与优化

Studies on Start-up of the Nitritation Process

采用CSTR来实现匹配厌氧氨氧化的亚硝化工艺的启动,并研究了在高浓度的氨氮进水的条件下,水力停留时间、溶解氧水平、PH、无机碳源等诸因素对亚硝化工艺的影响。试验结果表明:匹配厌氧氨氧化的亚硝化工艺的启动较快,启动完成后抗负荷冲击能力强,DO保持在0.5～1.0mgL-1,PH为7.0～7.9,能较好的实现匹配厌氧氨氧化的亚硝化。

This paper discussed the start-up of the nitritation matched with ANAMMOX which was accomplished in a continuously stirred tank reactor （CSTR）. Several parameters which included HRT, DO, pH and inorganic carbon source was studied to evaluate their effects in the intluent with high strength ammonium. The results of experiences indicated that start-up of the nitritation process was relativeiy fast, the ability of resistance to ioad impact was strong after start-up. The resuitlwhich DO in the range of 0.5 and 1.0 mg L^-1, pH from 7.0 to 7.9 is advantage to achieving the nitritation matched with ANAMMOX effectively.