Effect of sulfate radical oxidation on disintegration of waste activated sludge》.pdf

International Biodeterioration Biodegradation 104 (2015) 384e390 Contents lists available at ScienceDirect International Biodeterioration Biodegradation journal homepage: /locate/ibiod Effect of sulfate radical oxidation on disintegration of waste activated sludge Weichao Ren a, Zhen Zhou a, *, Yeye Zhu a, Lu-Man Jiang a, **, Haijuan Wei b, Tianhao Niu a, Penghao Fu a, Zhan Qiu b a College of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai, 200090, China b Shanghai Chentou Wastewater Treatment Co., Ltd, Shanghai, 201203, China a r t i c l e i n f o a b s t r a c t Article history: The effects of sulfate radical oxidation pretreatment on the disintegration of waste activated sludge were Received 7 April 2015 investigated at different dosages of peroxymonosulfate (PMS). Indicators for estimating sludge disinte- Received in revised form gration were selected by analyzing concentrations of released substances and statistical analysis. Results 2 July 2015 indicated that COD and total phosphorus (TP) were unsuitable for estimating sludge disintegration by Accepted 18 July 2015 Available online xxx oxidants. Pearson correlation analysis indicated that total nitrogen (TN), total organic carbon (TOC), UV254 and polysaccharides had strong correlation with each other, thus suitable for sludge disintegration estimation. Chemical analysis and 3D-EEM fluorescence spectra sh