摘要
研究了对苯二酚、邻苯二酚、间苯二酚对硝化污泥抑制的机理,比较了氯化三苯基四氮唑(TTC)和碘硝基四氮唑(INT)污泥电子传递体系活性。结果表明:对苯二酚、间苯二酚主要抑制羟胺(NH_2OH)氧化为亚硝酸盐氮;邻苯二酚主要抑制亚硝酸盐氮氧化为硝酸盐氮;3种苯二酚对硝化污泥的电子传递体系活性抑制程度为对苯二酚>间苯二酚>邻苯二酚,对应的TTC和INT的半数效应质量浓度(EC_(50))分别为4.85、5.28、38.37mg/L和5.75、6.31、40.33mg/L。
The inhibitory mechanism of hydroquinone,catechol and resorcinol on nitrifying sludge was investigated,and triphenyltetrazolium chloride（TTC）-electron transport system（ETS） activity and iodonitrotetrazolium（INT）-ETS activity were compared.Results showed that hydroquinone and resorcinol predominantly inhibited the oxidation of hydroxylamine（NH2 OH）to nitrite nitrogen,and catechol predominantly inhibited the oxidation of nitrite to nitrate.TTC-ETS activity and INT-ETS activity came to a same conclusion that hydroquinoneresorcinolcatechol,with the corresponding EC（50） 4.85,5.28 and 38.37 mg/L of TTC-ETS and 5.75,6.31 and 40.33 mg/L of INT-ETS.
作者
姚远
刘志英
陆曦
张文治
魏朋
徐炎华
YAO Yuan;LIU Zhiying;LU Xi;ZHANG Wenzhi;WEI Peng;XU Yanhua(College of Environmental Science and Engineering,Nanjing Tech University, Nanjing Jiangsu 211816;NJTECH Environment Technology Co.,Ltd., Nanjing Jiangsu 211500)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2018年第5期558-561,共4页
Environmental Pollution & Control
基金
国家重点研发计划项目(No.2017YFB0602500)
山西省科技重大专项(No.MH2015-08)
江苏省高校自然科学研究计划项目(No.16KJA610002)
关键词
苯二酚
硝化污泥
好氧氨氧化
亚硝酸盐氧化
电子传递体系
dihydroxybenzene
nitrifying sludge
aerobic ammonia oxidation
nitrite oxidation
electron transport system
