New Seaweeds Coagulant Aids on Coagulation Performance and Floc Characteristics of Ferric Chloride Coagulant in Kaolin-humic Acid Solution Treatment
Using coagulant aid to increase the organics removal is one of the main methods to improve the coagulation effect.The development of new coagulant aids has vital significance to water supply and sewage treatment.This paper develops two kinds of new seaweeds coagulant aids- Enteromorpha extract (EE) and sodium alginate (SA),and then the two coagulant aids were used together with ferric chloride (FC) in humic acid - kaolin water sample.The coagulation aid effect of EE and SA were studied through the comparation of coagulation effects before and after the application of them.Meanwhile,the growth,breakage and regrowth of flocs were investigated by use of a laser diffraction particle sizing device.The experimental results showed that Ee had significant coagulant aid effect while the aid role of SA was not obvious,but when used together with FC,flocs showed larger particle sizes and growth rates no matter which coagulant aid was selected.Meanwhile the strength and recovery ability of flocs showed a corresponding increase.
New coagulant aids Enteromorpha extract Sodium alginate Coagulation performance Floc characteristics
Shuang Zhao Baoyu Gao Yan Wang
School of Environmental Science and Engineering, Shandong University, No.27 Shanda South Road, Jinan 250100, Shandong, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
669-676
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）