摘要
赣州市白塔污水处理厂一期工程处理规模为6万m^3/d,采用UNITANK工艺,出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级B标准。扩容提标后要求处理规模达到9万m^3/d,出水水质达到上述标准的一级A标准。由于污水厂周边不具备新征建设用地的条件,工程通过挖潜改造,采用内置固液分离器AO+磁混凝+反硝化滤池处理工艺,出水水质可满足一级A排放标准。污水处理厂扩容提标后用地指标仅为0.51 m^2/(m^3·d),对我国污水厂提标改造工程具有较好的借鉴意义。
The treatment scale of Ganzhou Baita Wastewater Tre atment Plant Phase I Project is60000 m^3/d.The UNTTANK technology is adopted.The effluent quality complies with the B standard of Class A in Discharge Standard of Pollutants from Municipal Wastewater Treatment Plant(GB 18918—2002).After the capacity expansion and standard raising,the treatment scape is required to 90000 m^3/d,and the effluent quality will be up to the A standard of Class A in the above standard.Due to no conditions for the acquisition of new land for construction around the wastewater treatment plant(WWTP),through the digging potential reconstruction,the treatment technology of built-in solid-liquid separator AO+magnetic-coagulation+denitrification filter is used in the project.The effluent quality can satisfy the Class A discharge standard.The land using index of WWTP is only 0.51 m^2/(m^3·d)after the capacity expansion and standard raising,which has the good reference for the capacity expansion and standard raising projects of WWTP in China.
出处
《城市道桥与防洪》
2020年第8期180-183,207,M0018,共6页
Urban Roads Bridges & Flood Control
关键词
内置固液分离器
磁混凝
反硝化滤池
提标改造
空间集约型污水处理厂
built-in solid-liquid separator
magnetic coagulation
denitrification filter
standard raising reconstruction
spatial intensive WWTP
