Influence of pre-ozonation on coagulation of micropolluted surface water from Yellow River
Although ozone was widely used before coagulation in water treatment, the influence of pre-ozonation on the coagulation for removal of particle and natural organic matter (NOM) from micro-polluted surface water is still unclear. A pilot investigation of the influence of pre-ozonation on coagulation of the micro-polluted surface water from Queshan reservoir which derived from Yellow River was carried out in this paper. The results showed that the coagulation for particle and NOM removal of the micro-polluted Yellow River water was enhanced greatly after ozone oxidation and the optimized coagulation efficiency was observed at ozone dosage 3.0mg/L. Moreover, the enhanced coagulation under the influence of pre-ozonation was compared with the traditional one in terms of coagulation efficiency, whereas the removal efficiency of turbidity, color index, UV254 and CODMn were increased in 24％, 27％, 35％, and 15％ respectively.
Pre-ozonation micro-polluted surface water Yellow River Reservoir Enhanced Coagulation
Honglan Li Kefeng Zhang Yonglei Wang
School of Civil and Architectural Engineering University of Jinan Jinan,China School of Public Works and Environmental Engineering Shandong Jianzhu University Jinan,China
国际会议
上海
英文
2929-2932
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）