优良菌对焦化废水的降解性能研究

BIO-DEGRADATION EFFECTS OF EIGHT FINE STRAINS ON COKING WASTEWATER

以CODCr为控制指标 ,利用分离筛选出的八株优良菌及其与活性污泥的混合体对焦化废水的降解特性进行了研究。结果表明 ,单一优良菌对焦化废水CODCr的去除效果不如活性污泥好 ;混合优良菌株的降解效果比单一菌株好 ,不同优良菌株混合时 ,CODCr的去除率各不相同。相同条件下 ,活性污泥对照组CODCr去除率仅为 5 2 2 % ;优良菌与活性污泥混合使用时 。

With COD Cr as control quota,the bio degradation effects of eight fine strains isolated in advance and the mixutres of the strains and acclimated activated sludge on coking wastewater was studied.The results showed that,as for the removing rate of COD Cr of coking waster water,the acclimated activated sludge was more effective than any one of the single fine strain,but less effective than the mixtures of the fine strains.Under the same condition,only 52.2% by the acclimated activated sludge,whereas under existence of the mixtures of fine strains and acclimated activated sludge,COD Cr removing rates could be accelerated and raised.