几种氯酚的生物降解性及其对厌氧产甲烷毒性的试验研究  

Biodegradability and Anaerobic Methane Formation Toxicity of Chlorophenols

作　　者：李建华[1] 戴友芝[1] 杨大森[1] 

机构地区：[1]湘潭大学环境工程系,湖南湘潭411105

出　　处：《湖南工程学院学报（自然科学版）》2006年第3期83-87,共5页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：在35±1℃中温厌氧条件下,以葡萄糖为共基质,采用间歇试验法,研究了2,4-二氯酚、2,4,6-三氯酚、2,3,4,6-四氯酚及五氯酚的产甲烷毒性及生物降解性.试验结果表明:四种氯酚对产甲烷菌活性的抑制程度大小为:五氯酚>2,4,6-三氯酚>2,3,4,6-四氯酚>2,4-二氯酚.氯酚的去除率大小为:五氯酚>2,3,4,6-四氯酚>2,4,6-三氯酚>2,4-二氯酚.氯酚去除率与自身毒性关系不明显,但COD去除率与氯酚的毒性大小呈负相关.A batch anaerobic test is conducted to examine the biodegradability and methane formation toxicity of 2,4-DCP, 2,4,6-TCP, 2,3,4,6-TeCP and PCP. The test conditions are as follows： glucose is used as co-substr -ate and the temperature is 35±1℃. The inhibition level is PCP〉2,4,6 - TCP〉 2,3,4,6 - TeCP 〉 2,4 - DCP. Chlo-rophenol removing rate is PCP 〉 2,3,4,6 - TeCP 〉 2,4,6 - TCP 〉 2,4 - DCP in low concentration （≤40mg/L）. The relations between the chlorophenol removing rate and its toxicity isn＇t obvious, but COD （ chemical oxygen de-mand） removing rate is negatively correlated to the toxicity of chlorophenol.

关 键 词：生物降解性 产甲烷毒性 氯酚 共基质 葡萄糖 

分 类 号：X703.1[环境科学与工程—环境工程]