奥贝尔氧化沟工艺提标改造设计技术要点
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摘要
某城区污水处理厂对奥贝尔氧化沟进行升级改造,将表曝改为底曝,并增加后置反硝化深床滤池。提标改造后实际运行表明,该工程除磷脱氮效果较好,出水水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。着重介绍了表曝改为底曝的设计思路及改造注意事项,并对提标改造设计要点进行了总结。
As the discharge standards improved recently,the Orbal oxidation ditch in a municipal wastewater treatment plant was upgraded and reconstructed by changing the aeration mode from surface aeration to bottom aeration and adding a post-denitrification deep bed filter. The actual operation showed that the process had good phosphorus and nitrogen removal effect,and the effluent quality was superior to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant( GB 18918-2002). The design ideas and tips of changing aeration mode from surface to bottom were introduced emphatically,and the key technologies for design of the upgrade and reconstruction were summarized.
As the discharge standards improved recently,the Orbal oxidation ditch in a municipal wastewater treatment plant was upgraded and reconstructed by changing the aeration mode from surface aeration to bottom aeration and adding a post-denitrification deep bed filter. The actual operation showed that the process had good phosphorus and nitrogen removal effect,and the effluent quality was superior to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant( GB 18918-2002). The design ideas and tips of changing aeration mode from surface to bottom were introduced emphatically,and the key technologies for design of the upgrade and reconstruction were summarized.
引文
[1]颜秀琴,郑兴灿,张悦,等.奥贝尔氧化沟的工程应用性能研究[J].中国给水排水,1999,15(7):1-8.Yan Xiuqin,Zheng Xingcan,Zhang Yue,et al.Research on the engineering application performance of Orbal oxidation ditch[J].China Water&Wastewater,1999,15(7):1-8(in Chinese).
[2]麦松冰,邓荣森,王涛.奥贝尔氧化沟工艺改良的试验研究[J].给水排水,2008,34(Z1):186-188.Mai Songbing,Deng Rongsen,Wang Tao.Research on Orbal oxidation ditch updating and reconstruction[J].Water&Wastewater Engineering,2008,34(Z1):186-188(in Chinese).
[3]冯美丹.氧化沟处理工艺改造[J].科技与创新,2014,(1):145-146.Feng Meidan.Orbal oxidation ditch updating and reconstruction[J].Science and Technology&Innovation,2014,(1):145-146(in Chinese).
[2]麦松冰,邓荣森,王涛.奥贝尔氧化沟工艺改良的试验研究[J].给水排水,2008,34(Z1):186-188.Mai Songbing,Deng Rongsen,Wang Tao.Research on Orbal oxidation ditch updating and reconstruction[J].Water&Wastewater Engineering,2008,34(Z1):186-188(in Chinese).
[3]冯美丹.氧化沟处理工艺改造[J].科技与创新,2014,(1):145-146.Feng Meidan.Orbal oxidation ditch updating and reconstruction[J].Science and Technology&Innovation,2014,(1):145-146(in Chinese).