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TJNJ港区含油污水处理改造工程技术经济分析
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摘要
天津市为贯彻落实《国务院关于落实科学发展观和加强环境保护的决定》和《国务院关于推进滨海新区开发开放有关问题的意见》的关于“城镇污水处理厂排水要达到国家《城镇污水处理厂污染物排放标准》(GB18918-2002)一级排放标准。”的规定,对企业污水排放标准限值进行了调整。根据天津市政府的要求,TJNJ港区的原有污水处理系统需要进行技术改造,以达到污水排放新标准。
     本文首先对TJNJ港区含油污水处理原有系统进行深入调研分析,得出了TJNJ港区含油污水处理原有系统达到新的污水排放标准存在的主要问题;其次,在分析含油污水处理工艺和技术进展和发展趋势基础上,提出了两种原有含油污水处理系统改造工程的方案,分别为物化处理系统-Fenton氧化处理方案(方案一)、生化处理系统-膜生物反应器(MBR)方案(方案二);最后,以技术经济指标评价和比选两个改造工程方案,并对优化改造工程方案进行了财务评价和国民经济评价。
     改造工程实践结果证明,TJNJ港区含油污水处理系统改造工程取得了很好的经济效益和环境效益,污水排放指标达到和超过了新的排放标准。
To implement the "State Council on the implementation of scientific development and strengthening environmental protection decision" and "the State Council on promoting the development and opening of Binhai New Area, the views of the relevant issues" on the "urban sewage treatment plant effluent to meet the national" pollution of urban sewage treatment plant emission standard "(GB18918-2002) an emission standard.",Tianjin has adjusted the corporate limits of the effluent standards.According to the requirements of the Tianjin municipal government , the original sewage treatment system of TJNJ port need to carry out a technological transformation to meet the new standard for sewage discharge.
     At first,this paper has made a depth investigation and analysis of the original oil wastewater treatment system of the TJNJ port,and get the the main problems that exsit on the rode of the original oil wastewater treatment system of the TJNJ port to reach a new effluent discharge standards;second, based on the analysis of the progress and development trends of the oily wastewater treatment processes and technologies, we propose two programs to transform the original oil wastewater,one is called Physico-chemical treatment systems-Fenton oxidation treatment program(program 1),the other is called Biological treatment system– membrane bioreactor(MBR)program(program 2); third,make a comparison of two transformation projects with the sum of evaluation of the Technical and economic indicators,and aslo make a financial evaluation and National economy evaluation for optimizing the transformation project.
     The practice results of the transformation project turns out that the Oily Wastewater Treatment System Improvement Project of TJNJ Port has achieved good economic and environmental benefits,wastewater emission indicators have meet and even exceed the new emission standards.
引文
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