WANGYu-min,SHAOXian-tao,ZHOU Jia-zhong,et al.Application of BFM Process in the Upgrading and Reconstruction of a WWTP in Shandong Province[J].China Water & Wastewater,2025,41(12):97-102.
BFM工艺用于山东某污水厂提标改造
- Title:
- Application of BFM Process in the Upgrading and Reconstruction of a WWTP in Shandong Province
- Keywords:
- upgrading and reconstruction; biofilm; MBBR; advanced treatment
- 摘要:
- 山东某污水厂处理规模为6×104 m3/d,采用新增污水处理工艺单元的方式进行地表水准Ⅳ类提标改造。采用基于生物膜法的BFM并集成活性炭吸附的技术路线。提标改造处理单元占地面积为0.03 m2/(m3·d-1),BFM生物池好氧区和缺氧区悬浮载体填充率分别达到55%和50%。稳定运行期间,BFM实际进水水质波动较大,在进水COD、NH3-N、TN、TP、SS分别为16.72~37.34、0.22~4.19、9.70~14.15、0.03~0.42、6.79~9.54 mg/L的条件下,出水相应指标可稳定降至16.59~21.89、0.03~0.13、7.15~9.04、0.02~0.10、3.24~6.51 mg/L。高通量测序结果显示,生物膜在低基质条件下实现了功能菌的高效富集,好氧区硝化菌和缺氧区反硝化菌的相对丰度分别达到7.77%和16.5%。BFM工艺具有集约、高效、稳定的优势,对类似污水厂的提标改造具有借鉴作用。
- Abstract:
- A wastewater treatment plant (WWTP) in Shandong Province has a treatment capacity of 6×104 m3/d, adopting the method of adding new wastewater treatment process units for the upgrading of class Ⅳ standard. The process adopts the technical route of BFM based on biofilm method and integrated activated carbon adsorption unit. The area occupied by the upgrading and reconstruction processing unit is 0.03 m2/(m3·d-1), and the filling rates of the aerobic and anaerobic zones in the BFM biological tank reached to 55% and 50%, respectively. During stable operation, the actual influent of BFM fluctuates greatly. Under the conditions of influent COD, NH3-N, TN, TP, and SS being 16.72-37.34 mg/L, 0.22-4.19 mg/L, 9.70-14.15 mg/L, 0.03-0.42, and 6.79-9.54 mg/L, respectively, after BFM treatment, it can be stably reduced to 16.59-21.89 mg/L, 0.03-0.13 mg/L, 7.15-9.04 mg/L, 0.02-0.10 mg/L, and 3.24-6.51 mg/L. High-throughput sequencing results showed that the biofilm achieved efficient enrichment of functional bacteria under low substrate conditions, with relative abundances of aerobic nitrifying bacteria and anaerobic denitrifying bacteria reaching 7.77% and 16.5%, respectively. The BFM process has the advantages of intensification, efficiency, and stability, which can serve as a reference for upgrading and reconstruction similar sewage treatment plants.
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