MBBR+氧化沟与改良AAO工艺用于污水处理厂提标扩建  

Application of MBBR + Oxidation Ditch and Modified AAO Process in the Upgrading and Extension of Sewage Treatment Plant

作　　者：陈霖 于涛 CHEN Lin;YU Tao(Beijing Enterprises Water Group Limited, Hangzhou 310000, China)

机构地区：[1]北控水务集团有限公司

出　　处：《中国给水排水》2019年第8期58-62,共5页China Water & Wastewater

摘　　要：台州市黄岩江口污水处理厂原处理规模为8×10^4 m^3/d,采用卡鲁塞尔氧化沟工艺,针对其出水标准由二级标准提高至地表水准IV类标准,提标工程对其中2 ×10^4 m^3/d工业废水增设水解酸化预处理工艺,并将氧化沟工艺改造为MBBR与氧化沟组合工艺。针对处理规模增加,扩建工程新建4×10^4m^3/d改良型AAO生化处理系统。提标工程与扩建工程出水一并进入新增设的12 ×10^4 m^3/d深度处理单元,深度处理采用硝化反硝化/高效沉淀/过滤/臭氧消毒组合工艺。改造完成后出水水质稳定达到地表水准IV类标准。提标扩建工程总投资为26 276万元,处理成本为 0.805 元/m^3.The original treatment capacity of Taizhou Huangvan Jiangkou Sewage Treatment Plant was 8 ×10^4 m^3/d. Carrousel oxidation ditch process was adopted in this plant. In order to improve the effluent quality from the secondaiy standard to the surface water quasi IV class standard, hydrolytic acidification pretreatment process was added to treat the 2 × 10^4 m^3/d industrial wastewater, in the upgrading project, and the oxidation ditch process was transfonned into a combined process of MBBR and oxidation ditch. In view of the increase of treatment capacity, a modified AAO process with treatment capacity of 4 × 10^4 m^3/d was built in the extension project. The effluent both from the upgrading project and the extension project entered the newly added 12 × 10^4m^3/d advanced treatment unit, which adopted the combined process of nitrification and denitrification/high-efficiency precipitation/filtration/ozone disinfection. After the transformation, the effluent water quality had reached the surface water quasi Ⅳ class standard. The total investment of the project was 262. 76 million yuan, and the treatment cost was 0. 805 yuan/m3.

关 键 词：提标扩建 深度处理 卡鲁塞尔氧化沟 MBBR 改良型AAO 

分 类 号：TU992.3[建筑科学—市政工程]