摘要
利用煤气废水水质，从影响因素及游离氨毒性作用两方面对亚硝酸型硝化的可行性及稳定性进行了试验研究。研究结果表明，亚硝酸型硝化具有一定可行性，可以从影响因素及游离氨（ＦＡ）的毒性作用两方面进行控制。亚硝酸型硝化要求ｐＨ＞７．４，碱度＞３５０ｍｇ／Ｌ，出水氨氮浓度＞２０ｍｇ／Ｌ，游离氨浓度＞０．４ｍｇ／Ｌ，此时亚硝酸盐氮占硝态氮比例大于９０％。
Abstract The feasibility and stability of Nitrous Nitrification (NN) are studied experimentally from both the influence factors (IF) and the toxic effects of free ammonia (FA) using the gas generation wastewater and the result shows that certain feasibility of NN could be controlled by IF and FA. The NN process can work at pH>7.4 and alkalinity>350mg/l, And under this condition an effluent with concentration of ammonia nitrogen >20mg/l and FA>0.4mg/l was obtained. The nitrite percentage will be >90% in the total nitric nitrogen.
出处
《给水排水》
CSCD
北大核心
1999年第7期37-39,共3页
Water & Wastewater Engineering
