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INHIBITION OF ACTIVATED SLUDGE BY NITRITE IN THE PRESENCE OF PROTEINS OR AMINO ACIDS

机译:蛋白质或氨基酸存在下亚硝酸盐对活性污泥的抑制作用

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摘要

Under certain circumstances nitrite can accumulate in activated sludge treatment systems. The influence of a sudden increase of nitrite concentration on the overall removal processes in semi-continuous activated sludge reactors was investigated. It was found that the moment of occurrence of the nitrite peak is important in relation to the time of feeding. Addition of nitrite together with protein rich feed resulted in a higher inhibition of both COD and nitrogen removal, although nitrite itself had totally disappeared within a period of two days.
机译:在某些情况下,亚硝酸盐会积聚在活性污泥处理系统中。研究了亚硝酸盐浓度突然增加对半连续活性污泥反应器中整个去除过程的影响。已经发现,亚硝酸盐峰的出现时刻相对于进料时间是重要的。尽管亚硝酸盐本身在两天内完全消失,但亚硝酸盐与富含蛋白质的饲料一起添加对COD和氮的去除均具有较高的抑制作用。

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