城镇污水处理厂经济运行多属性群决策模型的研究

发布时间：2018-03-02 18:34

本文选题：污水处理厂　切入点：经济运行　出处：《西华大学》2016年硕士论文　论文类型：学位论文

【摘要】：经济的迅猛腾飞,城镇的快速扩张,使我国城镇水环境污染问题也日趋严峻。城镇污水处理厂作为水污染处理的主要市政设施,其处理技术和建设规模近年来得到了大量的提高和发展。其工艺方案的决策对工艺的投资、工程的建设和后期的管理运营都具有重要的影响。为使污水处理厂的方案选择尽可能的减少生态环境的污染、降低工程投资及后期运行管理成本,给居民生活水平的提高和社会可持续发展提供可靠保障,由此,对备选工艺方案进行合理的评价决策是非常有必要且极具实际意义的。本文通过对国内外关于城镇污水处理厂综合评价体系的研究,结合污水处理厂方案决策的工程实践情况,以不同方案下带来的风险为主线,构建了技术、环境、经济、社会四个层次作为污水处理厂经济运行评价的目标决策体系,其中给出了14个影响项目投建和运营的评价指标,在评价指标的构建及其评判标准中结合了层次分析法、模糊数学法进行定性和定量的研究分析。最后,运用了多属性群决策模型对备选方案进行合理的决策,从中甄选出技术更优化、处理效果更优良、投资更经济、社会效益更凸显的工艺方案。以某市城镇污水处理厂为例,对其运用建立的多属性群决策模型进行工艺备选方案的决策,从决策结果的比选中选择了A~2/O+MBR作为该污水处理厂的最优工艺,更切合该污水处理厂实际建设和运行情况,使模型取得了良好的应用效果。对城镇污水处理厂经济运行群决策模型的研究不仅使城镇污水处理厂项目综合评价体系得到了补充和完善,也为污水处理厂方案决策和提标改造提供了一定的理论依据。
[Abstract]:With the rapid development of economy and the rapid expansion of cities and towns, the pollution of urban water environment is becoming more and more serious. As the main municipal facilities for water pollution treatment, urban sewage treatment plants are the main municipal facilities for water pollution treatment. Its processing technology and construction scale have been greatly improved and developed in recent years. The construction of the project and the management and operation of the later stage have important influence. In order to make the scheme of the sewage treatment plant choose to reduce the pollution of the ecological environment as far as possible, and reduce the project investment and the management cost of the later operation, To provide a reliable guarantee for the improvement of the living standards of the residents and the sustainable development of society, It is very necessary and practical to make reasonable evaluation and decision on the alternative process scheme. Through the research on the comprehensive evaluation system of urban sewage treatment plant at home and abroad, this paper combines the engineering practice of the scheme decision of sewage treatment plant. Taking the risks brought by different schemes as the main line, four levels of technology, environment, economy and society are constructed as the target decision-making system for the economic operation evaluation of sewage treatment plants. Among them, 14 evaluation indexes affecting the investment and operation of the projects are given. In the construction of the evaluation index and the evaluation standard, the paper combines the analytic hierarchy process (AHP), the fuzzy mathematics method to carry on the qualitative and quantitative research and analysis. Finally, the multi-attribute group decision-making model is used to make the reasonable decision on the alternative scheme. The technology is optimized, the treatment effect is better, the investment is more economical, and the social benefit is more prominent. Take a municipal sewage treatment plant as an example, According to the multi-attribute group decision model established, the decision of process alternative scheme is made. From the result of the decision, we select A ~ (2 / O) MBR as the optimal process of the wastewater treatment plant, which is more suitable for the actual construction and operation of the wastewater treatment plant. The research on economic operation group decision model of urban sewage treatment plant not only complements and perfects the comprehensive evaluation system of urban sewage treatment plant project, It also provides a certain theoretical basis for the scheme decision and improvement of the sewage treatment plant.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：X703

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