2,4-二叔丁基苯酚对活性污泥微生物的毒性研究  

Study on the toxicity of activated sludge microbes affected by 2,4-di-tert-butylphenol

作　　者：马雄飞 王靖飞 田在锋 康全影 徐元强 

机构地区：[1]河北省环境科学研究院,河北石家庄050037 [2]河北正奇环境科技有限公司,河北石家庄050037

出　　处：《工业水处理》2015年第8期18-21,共4页Industrial Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07203-003);平原河流污染控制与水质改善关键技术集成与综合示范(12253601D)

摘　　要：通过厌氧产甲烷毒性实验和活性污泥呼吸抑制实验，分别研究了不同浓度2，4-二叔丁基苯酚对活性污泥微生物的厌氧和好氧毒性。结果表明：当2，4-二叔丁基苯酚质量浓度〈13．14mg，L时，对厌氧微生物无抑制作用；其质量浓度为13．14～40．56mg/L时，为轻度抑制；质量浓度为40．56-152．41mg／L时，为中度抑制；质量浓度〉152．41mg／L时，为重度抑制。2，4-二叔丁基苯酚对好氧微生物的半数有效抑制浓度（EC50）为49．61mg／L。2，4-二叔丁基苯酚为0-250mg／L时，好氧毒性大于厌氧毒性，质量浓度〉250mg／L时，厌氧毒性高于好氧毒性。The anaerobic and aerobic toxicities of activated sludge microbes affected by 2,4-di-tert-butylphenol with different concentrations have been studied respectively, through anaerobic methanogenic toxicity tests and acti- vated sludge respiration inhibition tests. The results show that when the mass concentration of 2,4-di-tert-butylphe- nol〈1 3.14 rag/L, it does not have any inhibition effect on anaerobic microbes. When the concentration of 2,4-ditert- butylphenol is 13.14-40.56 mg/L, slight inhibition takes place. When the mass concentration of 2,4-di-tertbutylph- enol is 40.56-152.41 mg/L, moderate inhibition takes place. And when mass concentration of 2,4-di-tertbutylphenol〉 152.41 mg/L, serious inhibition takes place. Half of the effective inhibition concentrations （EC_50） of 2,4-di-tert- butylphenol on aerobic microbes is 49.61 mg/L. When the mass concentration of 2,4-di-tert-butylphenol is 0-250 mg/L, the aerobic toxicity is higher than anaerobic toxicity, but when its mass concentration 〉250 mg/L, anaerobic toxicity is higher than aerobic toxicity.

关 键 词：2 4-二叔丁基苯酚 活性污泥 厌氧毒性 好氧毒性 

分 类 号：X703.1[环境科学与工程—环境工程]