ZHU Shi jie.Influence of High Reductive Wastewater into Domestic Sewage Treatment Plant and Its Countermeasures[J].China Water & Wastewater,2018,34(20):119-122.
Influence of High Reductive Wastewater into Domestic Sewage Treatment Plant and Its Countermeasures
- Article number:
- 1000-4602(2018)20-0119-04
- CLC:
- TU992
- Document code:
- C
- Abstract:
- The effluent TP of Kunshan Xinyuan domestic sewage plant was abnormal in 2017, due to the impact of unknown influent. Through process inspection and data analysis, it was determined that the influent of the sewage plant contained high reductive wastewater, resulting in effluent TP exceeding the standard. Through process adjustment and chemical dosing experiment, it was found that the entering of reductive wastewater caused complete loss of biological phosphorus removal effect, and at the same time, the phosphorus in the activated sludge was also released into the water body. Besides, the Fe3+of chemical phosphorus removal agent (polymeric iron) was quickly reduced, so that it was difficult to combine with phosphate to form precipitate and lost the phosphorus removal effect. The effect of chemical phosphorus removal agent (polymeric iron) can be recovered by dosing the oxidant, thus the phosphate concentration in the sewage is reduced, and the normal operation of the domestic sewage plant is maintained.
References:
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Memo
作者简介：朱师杰（1987-），男，湖北孝感人，大学本科，工程师，研究方向为污水处理工艺及设备运行调控、河道生态修复。
E-mail:zhushijie1012@163.com
收稿日期：2018-03-18