含邻羟基苯甲腈废水可生化性的研究  

Study on Biodegradability of Wastewater Containing 2-hydroxy-benzonitril

作　　者：南从德 李登涛 Nan Congde;Li Dengtao(Lianhetech Technology(Dezhou)Ltd.,Dezhou 253115,China)

机构地区：[1]联化科技(德州)有限公司,山东德州253115

出　　处：《山东化工》2021年第7期246-247,共2页Shandong Chemical Industry

摘　　要：介绍了在邻羟基苯甲腈含量不同的情况下,含邻羟基苯甲腈废水可生化性研究的实验。实验结果表明,当邻羟基苯甲腈含量≤100 mg/L,废水生化系统污泥活性良好,COD去除稳定;当邻羟基苯甲腈含量介于150~200 mg/L,邻羟基苯甲腈物质对废水生化污泥表现出抑制作用,废水处理效果下降;当邻羟基苯腈含量≥250 mg/L,邻羟基苯甲腈呈现生物毒性和污泥抑制性,严重影响废水的生化处理效果。In this paper the experiments of biodegradability of wastewater with different content of 2-hydroxy-benzonitril was introduced.The experimental results showed that when the content of 2-hydroxy-benzonitril was≤100 mg/L,the sludge activity of the wastewater biochemical system was good and COD removal was stable.When the content of 2-hydroxy-benzonitril was between 150 and 200 mg/L,which showed inhibitory and toxic effects on wastewater biochemical sludge,and toxic effect disappeared with the adaptation of microorganisms.When the content of 2-hydroxy-benzonitril was more than 250 mg/L,which showed biological toxicity and sludge inhibition and seriously affected the biochemical treatment effect of wastewater.

关 键 词：污泥中毒 废水生化 邻羟基苯甲腈 

分 类 号：X783[环境科学与工程—环境工程]