通辽市科左后旗甘旗卡镇东区工业园区污水处理厂工程设计

发布时间：2018-06-13 08:08

本文选题：城市污水 + 改良A2/O工艺　；参考：《吉林大学》2016年硕士论文

【摘要】：根据国家关于蒙东地区加快融入东北环渤海经济圈的战略部署,通辽市委、政府为适应率先融入东北经济一体化发展要求,通辽市政府规划建设“通辽市自主创新与承接转移工业园区”,而甘旗卡镇东区作为“通辽市自主创新与承接产业转移工业园区”的一部分,目前,通辽市科左后旗甘旗卡镇东区的排水工程属空白区域,正处在起步阶段,这与园区的经济发展极不匹配。因此当务之急需要花大力气投资建设市政污水处理设施及管网收集工程。为了解决园区污水收集处理问题及配合工业区的近、远期开发建设及附属居住区建设,为区域入驻企业及项目用地单位提供可靠的基础设施保障,政府规划建设通辽市科左后旗甘旗卡镇东区污水处理工程。根据污水处理厂服务范围及服务人口等因素,确定污水处理工程近期(2015年)建设规模为2万m3/d。远期到2020年污水处理厂规模设计达到4万m3/d。通过对进水水质进行分析同时考虑到工业园区内部工厂产生污水情况,根据污水处理厂执行出水要求,选择以“粗格栅+细格栅+曝气沉砂池”作为预处理;以气浮池作为一级处理;以“水解酸化处+改良型A2/O工艺”作为二级处理工艺;同时采用“机械混合+高效絮凝池+普通快滤池”的组合对二级出水进行混凝、沉淀、过滤处理;消毒工艺采用ClO2作为消毒剂。以《城镇污水处理厂污染物排放标准》(GB18918-2002)中一级A标准作为污水处理厂排放标准。根据调研及水质预测,进、出水水质CODcr、BOD5、SS、TN、NH4-N、TP值分别为500、180、300、50、35、5mg/l和50、10、10、15、5、0.5mg/l。通辽市科左后旗甘旗卡镇东区污水处理工程建成后,将大大降低城市污水对环境的影响,可以有效的改善城市整体环境,可以为通辽市科左后旗甘旗卡镇创造良好的生活环境和投资环境,科左后旗甘旗卡镇的可持续发展。
[Abstract]:According to the state's strategic plan to speed up the integration of the eastern region of Mongolia into the economic circle around the northeast Bohai Sea, the Tongliao Municipal Party Committee and the government have to adapt to the requirements of the first integration into the northeast economy. Tongliao city government plans to build "Tongliao City Independent Innovation and undertaking transfer Industrial Park", while the East District of Ganqika Town as part of "Tongliao Autonomous Innovation and undertaking Industry transfer Industrial Park", at present, The drainage project in the eastern part of Ganqika Town, Kezuo Houqi, Tongliao City, is a blank area, which is in its infancy, which is far from matching the economic development of the park. Therefore, the urgent need to invest in municipal sewage treatment facilities and pipe network collection project. In order to solve the problem of sewage collection and treatment in the park and cooperate with the near and long term development of industrial zone and the construction of subsidiary residential area, it can provide reliable infrastructure guarantee for regional enterprises and project land units. The government plans to construct the sewage treatment project in the eastern district of Ganqika Town, Kezuo Hou Banner, Tongliao City. According to the service range and population of sewage treatment plant, it is determined that the construction scale of sewage treatment project in the near future (2015) is 20,000 m3 / d. Long-term to 2020 sewage treatment plant scale design reaches 40, 000 m3 / d. By analyzing the influent water quality and considering the sewage produced by the factory in the industrial park, according to the effluent requirement of the sewage treatment plant, the "coarse grid fine grid aeration sand settling tank" was chosen as the pretreatment. The air floatation tank is used as the primary treatment, the "modified A _ 2 / O process at hydrolytic acidification place" is used as the secondary treatment process, and the combination of "mechanical mixing high efficiency flocculant common fast filter" is used to coagulate and precipitate the secondary effluent. Filtration treatment; disinfection process using ClO2 as a disinfectant. The first class A standard is adopted as the discharge standard of sewage treatment plant. The discharge standard of pollutants in urban sewage treatment plant is GB18918-2002.The first class A standard is adopted as the discharge standard of sewage treatment plant. According to the investigation and water quality prediction, the effluent water quality CODcr-BOD5 / SSN NH _ 4-NN _ (TP) values are 500 ~ 180 ~ 300 ~ 50 ~ 50 ~ 35 ~ 5 mg / l and 50 ~ 10 ~ 10 ~ 10 ~ 1 ~ 15 ~ 5 ~ 5 ~ 0 ~ 0.5 mg / r ~ (-1), respectively. When the sewage treatment project for the eastern part of Ganqika Town, Kezuo Houqi, Tongliao City, is completed, it will greatly reduce the impact of urban sewage on the environment and can effectively improve the overall environment of the city. It can create a good living environment and investment environment for Ganqika Town of Kezuo Houqi, Tongliao City, and the sustainable development of Ganqika Town in Kezuo Houqi County of Tongliao City.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：X703

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