摘要
利用瓦氏呼吸仪测定微生物耗氧量的方法 ,研究了焦化废水及其中的难降解有机污染物吡啶、苯、间苯二酚和氯苯的降解特性。结果表明 ,p H值为 7.2时 ,焦化废水降解率最高 ;当浓度小于40 mg/L时 ,吡啶和苯可以部分被降解 ,浓度大于 6 0 mg/L时微生物呼吸作用明显地被抑制 ;污泥驯化有利于有机污染物降解速率的提高。
In this work,the biodegradation characteristics of coke plant wastewater and the refractory organic were studied,with Warburg respirometer measuring the oxygen consuming.The result shows that when pH is 7 2,the rate of coke plant wastewater biodegrading is encouraging.Under the lower concentration of 40 mg/L,Pyridine and Benzene can be degraded partly.And when concentration is higher than 60 mg/L,they inhibit microorganism respiration obviously.Acclimation of activated sludge is helpful for improving the degrading speed of refractory organic.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第1期77-79,共3页
Journal of Chang’an University(Natural Science Edition)
基金
陕西省教育厅科技专项资助 ( 0 0 JK2 5 2 )
陕西省科技厅攻关项目资助 ( 2 0 0 0 K13-G10 )
关键词
焦化废水
有机污染物
降解特性
浓度
污泥驯化
瓦氏呼吸仪
coke plant wastewater
refractory organic
concentration
activated sludge acclimation
warburg respirometer
