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垃圾渗滤液中的氨氮对微生物活性的抑制作用
引用本文:赵庆良,李湘中.垃圾渗滤液中的氨氮对微生物活性的抑制作用[J].环境污染与防治,1998,20(6):1-4.
作者姓名:赵庆良  李湘中
作者单位:[1]哈尔滨建筑大学市政环境工程学院 [2]香港理工大学土木与结构工程系
摘    要:研究了合成废水和垃圾滤渗滤中氨氮对活性污泥微生物活性的抑制作用。当合成废水的氨氮浓度从50mg/L依次成倍递增至800mg/L时,脱氢酶活性由11.04μgTF/mgMLSS下降至4.22,此时COD的去除率相应由95.1%降低到79.1%。

关 键 词:垃圾渗滤液  垃圾处理  微生物活性  废水处理

Inhibition of microbial activity by ammonia-nitrogen in landfill leachate
Zhao Qingliang.Inhibition of microbial activity by ammonia-nitrogen in landfill leachate[J].Environmental Pollution & Control,1998,20(6):1-4.
Authors:Zhao Qingliang
Abstract:A lab-scale study has been undertaken to investigate the inhibition of microbial activity by ammonianitrogen both in synthetic wastewater and landfill leachate. Experimental results showed that dehydrogenase activity of activated sludge decreased from 11. 04 to 4.22 ug TF/mg MLSS and COD removal declined from 95. 1 % to 79. 1 % respectively, when ammonia-nitrogen concentration in synthetic wastewater increased from 50 to 800 mg/L from diluted leachate in different bioreactors in parallel, the dehydrogenase activity were 9. 29, 8. 80, 8. 71,7- 12 and 4. 93 pg TF/mg MLSS respectively. All these results showed that high strength ammonia-nitrogen present in landfill leachate had severe inhibition effect to the microbe and ammonia-nitrogen should be removed andlimited down to 5O mg/L prior to any biological treatment.
Keywords:Activated sludge Landfill leachate Ammonia-nitrogen Dehydrogenase activity Inhibition  
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