入海排污口选址比选方法研究及案例分析

发布时间：2018-03-01 22:22

本文关键词： 生态适宜性分析法灰色决策法 P-Median模型 2-UPLP模型排污口选址　出处：《北京化工大学》2015年硕士论文　论文类型：学位论文

【摘要】：近年来调查发现,我国近岸海域环境污染严重,50%左右的海域受到污染,导致这一结果的直接原因便是陆源污染物的排放。据统计,我国排污口的数量由2006年的609个减少到现在的427个,虽然较为可观,但是污染情况不容乐观,大部分排污口附近海域水质为劣四类水质。排污口的位置是影响周围水质和水生野生动物的最重要因素之一。正是由于排污口设置论证缺乏统一的科学方法,导致一些排污口设置不尽合理。本文针对入海排污口选址比选方法进行研究,确立了生态适宜性分析法、灰色决策法、p-中值(P-Median)方法和二级无产量约束选址模型(2-UPLP模型)在排污口选址和污水处理厂选址问题上的应用。其中,针对物流选址中的P-Median模型和2-UPLP模型基础上进行改进,提出了适合排污口选址和污水处理厂选址问题的模型。本文在对各方法理论研究的基础上,进一步进行案例分析来验证方法的可行性,选取罗源湾和湄洲湾两个案例进行分析。罗源湾采用本文提出的方法对7个湾内备选海域进行评选,为现有的污水处理厂选择合适的排污区域。以湄洲湾泉港石化园为案例进行研究,为园区内内九个石化企业设置一个污水处理厂,并为其找到合适的排污海域。两个案例充分验证了各理论方法在实际排污口选址问题中的实用性,这一方法体系将为入海排污口的选址问题提供技术支持。
[Abstract]:In recent years, it has been found that about 50% of the coastal waters are polluted. The direct cause of this result is the discharge of land-based pollutants. The number of sewage outlets in China has decreased from 609 in 2006 to 427 now. Although the number of sewage outlets is considerable, the pollution situation is not optimistic. Most of the water quality near the sewage outlet is inferior to four kinds of water quality. The location of the sewage outlet is one of the most important factors affecting the surrounding water quality and aquatic wildlife. It is precisely because of the lack of a unified scientific method for setting up the sewage outlet. As a result, the setting of some sewage outlets is not reasonable. In this paper, the ecological suitability analysis method is established for the study of the selection method of the site selection of the sewage outlet into the sea. The application of p-median P-Median-based method and 2-UPLP model in sewage outlet location and sewage treatment plant location is discussed. The improvement is based on P-Median model and 2-UPLP model in logistics location, and the results are as follows: 2 UPLP model, 2 UPLP model, 2 UPLP model, 2 UPLP model, 2 UPLP model, 2 UPLP model, 2 UPLP model and 2 UPLP model. The model of sewage outlet location and sewage treatment plant location is put forward. On the basis of the theoretical study of each method, a case study is carried out to verify the feasibility of the method. Luoyuan Bay and Meizhou Bay are selected for analysis. Select suitable sewage treatment area for the existing sewage treatment plant. Take the Chuangang Petrochemical Park in Meizhou Bay as a case study, set up a sewage treatment plant for nine petrochemical enterprises in the park. Two cases fully verify the practicability of each theory method in the actual sewage outlet location problem, and this method system will provide technical support for the site selection problem of the sewerage outlet.
【学位授予单位】：北京化工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X55;X703

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