摘要
某污水处理厂出水氨氮不达标,经调查发现该厂进水中含有苯胺。围绕苯胺对活性污泥硝化作用的影响,开展了相关研究。结果表明,苯胺可抑制活性污泥的硝化作用,且其浓度越高抑制作用越强;当系统中苯胺浓度超过3 mg/L时,可使污泥丧失硝化能力;适当提高活性污泥浓度可使抑制作用减弱;对于短时间受抑制的活性污泥,若苯胺不再进入,其硝化能力将逐渐恢复。
The effluent ammonia nitrogen concentration of a sewage treatment plant could not meet the discharge standard due to aniline found in the influent. Therefore, the study on the effect of aniline on the nitrification of activated sludge was carried out. The results showed that aniline could inhibit the nitrification of activated sludge, and the higher the concentration of aniline, the stronger the inhibition could be. When the concentration of aniline exceeded 3 mg/L, the sludge nitrification was inhibited to- tally. The inhibition would be decreased when appropriately raising the concentration of activated sludge. For the activated sludge inhibited by aniline in a short time, if the aniline could not continuously flow into the activated sludge tank, the nitrification of activated sludge would be gradually recovered.
作者
晋玉亮
王旭
杨冲
刘俊红
JIN Yu-liang WANG Xu YANG Chong LIU Jun-hong(Thunip Holding Co. Ltd., Beijing 100084, China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第23期85-87,共3页
China Water & Wastewater
关键词
苯胺
活性污泥
氨氮
硝化作用
aniline
activated sludge
ammonia nitrogen
nitrification
