CAJ | 학술논문

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。
통과염양산갑완독성실험화활성오니호흡억제실험，분별연구료불동농도2，4-이숙정기분분대활성오니미생물적염양화호양독성。결과표명：당2，4-이숙정기분분질량농도＜13.14 mg/L시，대염양미생물무억제작용；기질량농도위13.14~40.56 mg/L시，위경도억제；질량농도위40.56~152.41 mg/L시，위중도억제；질량농도＞152.41 mg/L시，위중도억제。2，4-이숙정기분분대호양미생물적반수유효억제농도（EC50）위49.61 mg/L。2，4-이숙정기분분위0~250 mg/L시，호양독성대우염양독성，질량농도＞250 mg/L시，염양독성고우호양독성。
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<13.14 mg/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 (EC50) 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.