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<13.14 mg/L时,对厌氧微生物无抑制作用;其质量浓度为13.14~40.56 mg/L时,为轻度抑制;质量浓度为40.56~152.41 mg/L时,为中度抑制;质量浓度>152.41 mg/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49.61 mg/L。2,4-二叔丁基苯酚为0~250 mg/L时,好氧毒性大于厌氧毒性,质量浓度>250 mg/L时,厌氧毒性高于好氧毒性。
关键词:
2,
4-二叔丁基苯酚,
活性污泥,
厌氧毒性,
好氧毒性
Abstract:
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 activated sludge respiration inhibition tests. The results show that when the mass concentration of 2,4-di-tert-butylphenol<13.14 mg/L,it does not have any inhibition effect on anaerobic microbes. When the concentration of 2,4-ditertbutylphenol is 13.14-40.56 mg/L,slight inhibition takes place. When the mass concentration of 2,4-di-tertbutylphenol 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(EC50) of 2,4-di-tertbutylphenol 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.
Key words:
2,4-di-tert-butylphenol,
activated sludge,
anaerobic toxicity,
aerobic toxicity
中图分类号:
马雄飞, 王靖飞, 田在锋, 康全影, 徐元强. 2,4-二叔丁基苯酚对活性污泥微生物的毒性研究[J]. 工业水处理, 2015, 35(8): 18-21.
Ma Xiongfei, Wang Jingfei, Tian Zaifeng, Kang Quanying, Xu Yuanqiang. Study on the toxicity of activated sludge microbes affected by 2,4-di-tert-butylphenol[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(8): 18-21.