高浓度有机氰废水的厌氧生化特性  

作　　者：肖敏[1] 闫光绪[1] 马学良[1] 陈春茂[1] 王东波[1] 戴文军[1] 

机构地区：[1]辽宁石油化工大学环境工程系,抚顺113001

出　　处：《辽宁城乡环境科技》2002年第6期22-25,共4页Liaoning Urban and Rural Environmental Science & Technology

摘　　要：在 30℃条件下 ,模拟厌氧消化反应设备条件 ,测定了丙烯腈、腈纶生产过程废水等各种高浓度有机氰废水的厌氧生物可降解性 (BD % )及废水中丙烯腈、乙腈、聚合物和氰化物这些主要污染物质的产甲烷毒性。结果表明 ,丙烯腈生产一段、二段急冷废水和腈纶生产工艺废水的厌氧生物可降解性能比一般石油化工工业废水的性能差得多。废水中主要污染物对产甲烷活性抑制较强 ,它们对厌氧菌产甲烷活性的 5 0 %抑制浓度 ( 5 0 %IC)及其毒素类型分别为 :丙烯腈 85mg/L ,代谢、生理性毒素 ;乙腈 32 0mg/L ,代谢毒素 ;聚合物 130 0mg/L ,代谢毒素 ;氰化物 5 0mg/L ,生理。At 30℃,a batch anaerobictest was conducted to examine the biodegradability(BD%) of all kinds of high concentration organic effluent (wastewater in acrylonitrile and acrylic fibers production and so on) and toxicity of their main pollutants(acrylonitrile,acetonitrile,polymers and cyanide) on methane formation. The results showed that the BD% of the first and second stages chilled wastewater?in acrylonitrile production and wastewater?in acrylic fibers production were much lower than that of general petroleum chemical industrial wastewater.Wastewater's main pollutants had inhibition effect on the activity of methanogenic formation bacteria and the 50% inhibitory concentration of activity(50%IC) and the types of toxin are respectively, acrylonitrile 85mg/L, metabolic and physiological toxin; acetonitrile 320mg/L, metabolic toxin; polymers 1300mg/L, metabolic toxin; cyanide 50mg/L, physiological and bactericidal toxin.

关 键 词：有机氰废水 厌氧生物可降解性 50%抑制浓度 毒素类型 废水处理 水质特征 

分 类 号：X703[环境科学与工程—环境工程] X172