Biological Phosphorus Removal Combined with Ferrous Chemical Phosphorus Removal

Jie Fan; Han Hu; Ying Zhang; Lei Zhu

doi:10.4028/www.scientific.net/AMR.955-959.3339

Paper Titles

Research on Stormwater Catchments Delineation in Urban Area Based on DEM
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Study on Fly Ash for Conditioning of Specific Resistance of Sludge Water
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The Modular Design Concept of Decentralized Sewage Reuse Equipment and its Application
p.3323

Application Research of WebGIS Technology in City Reclaimed Water Use Management
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Biological Phosphorus Removal Combined with Ferrous Chemical Phosphorus Removal
p.3339

Coordination Degree Assessment Model for Regional Industrial Water Utilization Structure
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Design on the Optimal Diversion System of Sewage Interception System around Dianchi Lake
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Discussion on Security Problem of Water Quality of Urban Water Supply in China
p.3352

Models of Water Strategy Based on Linear Regression
p.3355

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 955-959Biological Phosphorus Removal Combined with...

Biological Phosphorus Removal Combined with Ferrous Chemical Phosphorus Removal

Abstract:

Chemical phosphorus removal is widely applied to enhance the biological phosphorus removal in order to meet the discharge requirement. Performance change caused by ferrous sulfate was investigated in this study. Compared to the control system which was not chemically dosed, pH and SVI slightly decreased while conductivity increased. The correlation between phosphorus and conductivity was weakened. The release and uptake of potassium declined, illustrating a negative impact of chemical precipitant on phosphorus accumulating organisms (PAO). The phosphorus uptake decreased while phosphorus release fluctuated. The phosphorus was not suitable for revealing the metabolic activity of PAO due to formation of ferric phosphate and ferric hydroxide.