Abstract:Biological treatment processes are generally combined with physicochemical process due to toxic or refractory organic pollutants contained in industrial wastewater. In this paper, effect of the potassium ferrate on the growth and metabolism of microorganisms was studied. Particularly, the effects of potassium ferrate concentration in terms of COD removal efficiency and the characteristic of the sludge were investigated, expecting to provide useful information of potassium ferrate oxidation on the following biological treatment. The results showed that potassium ferrate decomposed completely in the early stages of adaptation as its concentration was below 60mg/L, so the microorganisms were not affected by low concentration of potassium ferrate. When concentration of potassium ferrate was 41.5mg/L, COD removal efficiency was the highest and the settling of sludge was better, SV decreased and MLSS and MLVSS increased significantly compared to that without potassium ferrate.
蓝惠霞, 刘晓凤, 王乐乐, 陈元彩. 高铁酸钾对微生物生长及污泥理化特性的影响[J]. 中国环境科学, 2011, 31(8): 1285-1288.
蓝Hui-Xia , LIU Xiao-Feng, WANG Le-Le, CHEN Yuan-Cai. Effect of potassium ferrate on growth of microorganisms and physicochemical characters of sludge. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(8): 1285-1288.