以有机酸为共基质硝基酚厌氧生物降解性研究  

Study on anaerobic biodegradation of nitrophenols with organic acid as co-substrate

作　　者：佘宗莲[1] 金春姬[1] 高孟春[1] 于建伟[1] 

机构地区：[1]中国海洋大学环境科学与工程学院海洋生态环境山东省重点实验室,青岛266003

出　　处：《环境污染治理技术与设备》2004年第10期23-25,共3页Techniques and Equipment for Environmental Pollution Control

基　　金：国家自然科学基金资助项目 ( 4 0 2 72 10 8)

摘　　要：在中温厌氧消化条件下 ,以有机酸 (乙酸与丙酸的混合酸 )为共基质 ,通过测定甲烷累积产量 ,研究了 2 硝基酚、2 ,4 二硝基酚的厌氧生物降解性。试验条件为 :温度 35℃ ,COD 110 0～ 12 0 0mg/L ,pH 7 0～ 7 5 ,COD/VSS为 0 1,接种污泥未驯化 ,其产甲烷活性CH4/VSS为 195mL/g。研究结果表明 ,在所选的浓度范围内 (≤ 4 4mg/L) ,2 硝基酚对产甲烷过程没有产生抑制作用 ;2 ,4 二硝基酚是抑制性较强的物质 ,浓度为 12～ 2 0mg/L时产生中度抑制 ,大于 2A batch anaerobic test was conducted to examine the anaerobic biodegradation of 2-nitrophenol and 2, 4-dinitrophenol through measuring accumulative methane production. The test conditions were as the follows: acetic acid and propionic acid as co-substrate and the temperature was 35 ℃,COD 1100～1200 mg/L, pH 7.0～7.5, COD/VSS ratio 0.1. The original methanogenic activity of the seeded sludge CH 4/VSS was 195 mL/g. The results showed that 2-nitrophenol had slight inhibition effect on the activity of methanogenic bacteria. And 2, 4-dinitrophenol had stronger inhibition effect on the activity of methanogenic bacteria. It caused middle inhibition when 2, 4-dinitrophenol concentration was from 12 to 20 mg/L and strong inhibition when its concentration increased above 28 mg/L.

关 键 词：厌氧生物降解性 COD 硝基酚 产甲烷过程 产甲烷活性 厌氧消化 污泥 中度 抑制 重度 

分 类 号：X703[环境科学与工程—环境工程] X783