Study on protozoan community structures during the inorganic wastewater nitrification process
无机废水硝化过程中原生动物群落结构特征及其变化规律

Protozoan community structure was investigated during the nitrification process. The results showed that abundance of protozoan was low in the lab-scale reactor with feeding synthetic ammonic wastewater system. The dominant species were Arcella,Epistyli and Centropyxis during the whole operation period. The main factors for protozoan community dynamics were nitrite, nitrate concentrations and sludge size. Arcella was dominated during the nitrite accumulation period, while Centropyxis was dominated affecting by sludge size.