高锰酸盐与臭氧预氧化对生物工艺的影响

Effects of PPC and O3 preoxidation on microbiological characteristics of BAC process

通过对比高锰酸盐-生物活性炭工艺与臭氧-生物活性炭工艺的出水水质和生物工艺中微生物的特性,考察了高锰酸盐与臭氧预氧化对后续生物工艺的影响.实验结果表明,高锰酸盐预氧化-生物活性炭工艺出水水质优于臭氧预氧化-生物活性炭工艺的出水水质.与臭氧-生物活性炭工艺相比,高锰酸盐预氧化后生物活性炭上异养菌种属类别更加单一化;亚硝酸菌种属类别不一致,前者为亚硝化单细胞属,后者为亚硝化螺属和亚硝化单细胞属;硝化菌属的种类是一致的,均为硝化杆菌属和硝化刺菌属.

By comparing the effluent quantity and microbiological characteristics in each water treatment process and in BAC process, the effects of PPC and O3 preoxidation on BAC process were studied. The results show that the effluent quantity of biofiher with PPC preoxidation is better than that with ozone preoxidation. Compared with Nrtrosominas in O3-BAC, Nrtrosominas and Nitrosospira are the predominant nitrite bacteria in PPC-BAC process. Nitrobacter and Nitrospina are the predominant nitrate bacteria in both of BAC process.