| 摘要: |
| 采用透射电镜法及光子相关光谱法对自制的氧化性聚硅酸铁(PSF) 与聚合硫酸铁(PFS)进行微观表征,同时以254 nm的吸光度A(UV254)、溶解性有机碳质量浓度c(DOC)、色度及比紫外吸光值A(SUV254)作为溶解性有机物(DOM)的检测指标,对PSF降低以上各指标与浊度去除效果及相关性进行研究。结果表明:PSF由很短的链节样物种及枝状结构组成,形态尺寸及分维数较大,并且较稳定;PSF具有良好的混凝效果,对浊度及色度的去除率超过95％,对A(UV254),A(SUV254),c(DOC)的去除率分别达到85％,80％,60％;用于评价PSF去除DOM性能的各指标间及其与余浊之间均具有良好的相关性。 |
| 关键词: 聚硅酸铁 溶解性有机物 浊度 相关性 |
| DOI： |
| 分类号::X 703.5 |
| 文献标识码:A |
| 基金项目:国家自然科学基金项目(50678095);中国博士后科学基金项目(20080441124); 济南大学博士基金项目(XBSO839) |
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| Removal of dissolved organic matter(DOM) and turbidity by poly silicon ferric sulfate |
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FU Ying1,2, GAO Bao yu1
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(1.School of Civil and Architectural Engineering in University of Jinan, Jinan 250022, China;2.College of Environmental Science and Engineering in Shandong University, Jinan 250100, China)
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| Abstract: |
| The characteristics of self prepared oxidization poly silicon ferric sulfate(PSF) and poly ferric sulfate(PFS) were explored with transmission electron microscope(TEM) and photon correlation spectra(PCS). Taking the absorbance at 254 nm (A(UV254)), mass concentration of dissolved organic carbon(c(DOC)), color, A(SUV254) as testing indexes of dissolved organic matters(DOM), the correlation between removal effect of PSF and turbidity was studied. The results indicate that PSF contains much short chains like matters and multi branched structures with larger size, bigger fractal dimension and stable morphology. PSF has better coagulation performance, more than 95% and 60% removal efficiency for turbidity and color, and 85%, 80% and 60% removal for A(UV254), A(SUV254) and c(DOC), respectively. The good correlation between the evaluation indexes of removal DOM by PSF and turbidity can be obtained. |
| Key words: poly silicon ferric sulfate dissolved organic matter(DOM) turbidity correlation |
