ZHAOXu-yong,DENGLi-zhi,XUXin,et al.Research and Demonstration of BBR Process for Upgrading and Renovation of Quasi?Ⅳ Standard in Sewage Treatment Plant[J].China Water & Wastewater,2023,39(10):115-120.
BBR工艺用于污水处理厂准Ⅳ类水提标改造
- Title:
- Research and Demonstration of BBR Process for Upgrading and Renovation of Quasi?Ⅳ Standard in Sewage Treatment Plant
- Keywords:
- sewage treatment plant; upgrading and renovation; botany bio-reactor(BBR); improving quality and efficiency
- 摘要:
- 南昌某污水处理厂升级改造后，污染物排放标准由原《城镇污水处理厂污染物排放标准》（GB 18918—2002）的一级B标准提高至《地表水环境质量标准》（GB 3838—2002）的准Ⅳ类标准，且TN和SS达到一级A标准。该污水厂将A/A/O微曝氧化沟二级生化处理工艺升级改造为以“植物-泥-膜”为核心的植物生态生物膜（BBR）工艺，持续约7个月（含冬季）的正常运行数据显示，改造后出水水质满足设计标准，运行稳定，且抗冲击负荷（水质、水量、温度）能力强，NH3-N、COD、BOD5、TP的日平均浓度分别可达0.38、11.46、4.49、0.09 mg/L，优于地表Ⅳ类水标准；出水TN和SS分别为6.16 mg/L和2.38 mg/L，稳定处于10 mg/L以下；处理费用为0.6 元/m3，较改造前节省约20%。
- Abstract:
- After the transformation and upgrading of the sewage treatment facilities of a sewage treatment plant in Nanchang, the pollutant discharge was raised from the first level B standard in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) to the quasi-Ⅳ standard of the Environmental Quality Standards for Surface Water (GB 3838-2002), and the TN and SS reached the first level A standard of GB 18918-2002. In this project, the secondary biochemical treatment process of A/A/O micro-aeration oxidation ditch of sewage treatment plant is upgraded and transformed into BBR process with “plant-sludge-membrane” as the core, after about 7 months(including winter) normal operation data showed that, its effluent quality meet the design standards, stable operation, and strong impact load capacity(water quality, water quantity, temperature). The daily average concentrations of NH3-N, COD, BOD5, and TP reached 0.38 mg/L, 11.46 mg/L, 4.49 mg/L, and 0.09 mg/L, respectively, better than the surface water class Ⅳ standard. And the effluent concentrations of TN and SS were 6.16 mg/L and 2.38 mg/L, respectively, which were stable below 10 mg/L. At the same time, the treatment cost was 0.6 yuan/m3, which saves about 20% of the cost compared with the previous.
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