Abstract:Bench-scale tests were conducted to study the removal efficiency of dissolved organic nitrogen (DON) in high algae-containing raw waters by the MIEX? resins. Molecular weight distribution and two-dimensional electrophoresis were determined to explore the mechanisms. The results showed that MIEX? pretreatment could remove DON effectively and enhance the effect of coagulation. When the dose of resin was 15mL/L, the removal efficiency was increased by 20% as compared with coagulation alone. More than 230 proteins were found in the raw waters with Microcystis aeruginosa as dominant species. Those proteins were mainly in the acidic end and their molecular weight were between 15~40Ku and 65~75Ku, which were prone to be removed by MIEX?. In conclusion, MIEX? pretreatment is one of the applicable methods for removing DON in high algae-containing raw waters.
刘成, 王杰, 陈彬, 陈卫. MIEX?预处理对水源水中藻源DON的去除效能及机理[J]. 中国环境科学, 2015, 35(4): 1123-1128.
LIU Cheng, WANG Jie, CHEN Bin, CHEN Wei. Performance and mechanism for DON in algae cells removed by MIEX? pretreatment from source water. CHINA ENVIRONMENTAL SCIENCECE, 2015, 35(4): 1123-1128.