ZHANGJun,LEIHong,CHENXiang,et al.Exploration and Practice of New Concepts in Wastewater Purification Plant Reconstruction and Expansion Project[J].China Water & Wastewater,2024,40(22):53-57.
水质净化厂改扩建工程新理念探索与实践
- Title:
- Exploration and Practice of New Concepts in Wastewater Purification Plant Reconstruction and Expansion Project
- Keywords:
- sulfur autotrophic denitrification; emerging contaminants; dry season; rainy season; potential excavation
- 摘要:
- 六安市凤凰桥水质净化厂一期工程建设规模4×104 m3/d，二期工程将建设规模提升至9×104 m3/d，出水水质执行《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准和《巢湖流域城镇污水处理厂和工业行业主要水污染物排放限值》（DB 34/2710—2016）的共同要求。通过对一期工程的挖潜和局部改造，在保证出水达到新考核指标的前提下，将处理能力提升至5×104 m3/d。二期工程采用改进型Bardenpho生物池+平流式沉淀池，并采用深床滤池/硫自养滤池深度脱氮，采用高级氧化技术去除新污染物。通过运行工况的调整，凤凰桥水质净化厂雨季处理能力可提升至13×104 m3/d。运行结果显示，出水水质可稳定达标。
- Abstract:
- The construction scale of the first phase of Fenghuangqiao wastewater purification plant in Lu’an is 4×104 m3/d, and the second phase of the project will increase the construction scale to 9×104 m3/d. The effluent quality should comply with the combined requirements of the class A standard of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) and the Discharge Limits of Major Water Pollutants for Municipal Wastewater Treatment Plants & Industries in the Chaohu Basin (DB 34/2710-2016). By exploring the potential of the first phase project and making partial transformations, the treatment capacity was enhanced to 5×104 m3/d while ensuring that the effluent met the new standard. Improved Bardenpho biological tanks and horizontal flow sedimentation tanks were adopted in the second phase project, and deep-bed filters/sulfur autotrophic denitrification filters were adopted to remove nitrogen, while advanced oxidation was adopted to remove emerging contaminants. The treatment capacity could be increased to 13×104 m3/d during the rainy season through the adjustment of operation. The operation results indicated that the effluent quality could meet the standards steadily.
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