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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 |
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