LIUJuan,XIANGXu-wen,SHENJun,et al.Application of Bardenpho, MBBR and Magnetic Flocculation and Precipitation Process in the Upgrading and Reconstruction of a Wastewater Treatment Plant[J].China Water & Wastewater,2023,39(4):70-74.
Bardenpho+MBBR+磁絮凝沉淀用于污水厂升级改造
- Title:
- Application of Bardenpho, MBBR and Magnetic Flocculation and Precipitation Process in the Upgrading and Reconstruction of a Wastewater Treatment Plant
- 摘要:
- 山东某污水处理厂设计规模为10×104 m3/d，处理工艺为“预处理+水解池+A2/O生化池+絮凝斜板沉淀池+纤维转盘滤池+接触消毒池”，出水水质执行《城镇污水处理厂污染物排放标准》（GB 18918—2002）的一级A标准。新的环保要求出水COD≤30 mg/L、NH3-N≤1.5 mg/L、TN≤10 mg/L、TP≤0.3 mg/L，因此采用Bardenpho+MBBR+磁絮凝沉淀组合工艺对污水厂进行升级改造。该工艺最大限度地利用了现有池体，并在不停水的前提下完成了提标改造，不仅节省了投资，而且提高了处理效率，出水水质稳定达标，系统整体更耐冲击且运行更稳定。
- Abstract:
- The design scale of a wastewater treatment plant in Shandong is 10×104 m3/d, and the treatment process consisted of pretreatment, hydrolysis, A2/O, flocculation and inclined plate settler, fiber rotary table filter and contact disinfection. The effluent quality was required to meet the first level A limit specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). However, the new discharge standard requires that the COD, NH3-N, TN and TP in effluent were no more than 30 mg/L, 1.5 mg/L, 10 mg/L and 0.3 mg/L, respectively. Therefore, the combined process of Bardenpho, MBBR and magnetic flocculation and precipitation was adopted to upgrade the wastewater treatment plant. The process maximized the use of the existing tanks, and completed the upgrading project under the premise of uninterrupted wastewater treatment, which saved the investment and improved the treatment efficiency. The effluent quality stably met the discharge standard, and the whole system was more impact-resistant and operated more stably.
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