%0 Journal Article
%T Analysis of Solid-Liquid Oxidizing Poly Silicic Ferric Sulfate (PSF-I)<br>固液共存氧化型聚硅酸铁(PSF-I)混凝剂的分析
%A FU Ying
%A YU Shui-li
%A FU Sheng-tao
%A YANG Yuan-jing
%A <br>付英
%A 于水利
%A 付胜涛
%A 杨园晶
%J 环境科学
%D 2006
%I 
%X A new type of inorganic coagulant, solid-liquid oxidative poly silicic ferric sulfate(PSF-I) ,was prepared by adding KMnO4 and stabilizer M to poly silicic ferric sulfate(PSF).The species characteristics of PSF-I, the filtrate of PSF-I and PSF with Spectrophotometer, and coagulation performance of PSF-I and the filtrate of PSF-I with jar tests were explored, respectively. Coagulation efficiency of PSF-I was studied compared to that of PSF and poly ferric sulfate (PFS), and the effect of storage time on coagulation performance of PSF-I was investigated. The results show that KMnO4 added to PSF modifies the microstructure of PSF, increasing species size of PSF and making UVA characteristic peaks of Fe3+ ion in PSF-I more higher than that in PSF. There exists KMnO4 unattached in PSF-I. The solid phase in PSF-I is a kind of primary nucleus for building up flocs. The optimal dosage with PSF-I is 9 mg?L-1, in comparison with 12 mg?L-1 with PSF-I filtrate. The removal of natural organic matters (NOM) is not only caused by adsorption/charge-neutralization and co-precipitation but also by oxidization using PSF-I as coagulant, while to PSF and PFS, adsorption/charge-neutralization and co-precipitation is the only coagulation mechanism.
%K PSF
%K oxidative modification
%K solid-liquid
%K UVA spectrum
%K coagulation efficiency<br>聚硅酸铁
%K 氧化改性
%K 固液共存
%K 紫外扫描
%K 混凝性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=922A405926C5C3BD&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=F3090AE9B60B7ED1&sid=A6257A21BF5DE900&eid=ADC771006BF99B57&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=15