Effect of Particulates on Nitrification in Natural Waters of the Yellow River Under laboratory Conditions
黄河水体颗粒物对硝化过程的影响研究

In view of the high content of suspended matters in the Yellow River, the effect of particulates on nitrification has been studied under laboratory conditions. The results indicated that particulates exert significant effect on the nitrification processes, and the nitrification rate increased with the increase of particulate concentration. The mechanisms were elucidated. First, ammonium nitrogen can be absorbed on the particulates. Second, the particulates produce effect on the growth of ammonifying bacteria, nitrosobacteria and nitrobacteria. Third, the bacteria growth in liquid phase was different from that in solid phase.