城镇粪便处理方案比选研究

发布时间：2018-05-12 19:15

本文选题：城镇粪便 + 总投资收益率　；参考：《清华大学》2015年硕士论文

【摘要】：随着城市人口的增加,城镇粪便产生量与日俱增,城镇粪便处理方案的选择,既要从技术角度分析可靠性,还要从经济评价角度及社会环境影响角度分析其可行性。如果城镇粪便处置不当将会造成环境污染,影响人类生活的空间和质量,因此城镇粪便处理方案的选择在城市基础设施建设决策时至关重要,解决城镇粪便无害化、资源化的问题迫在眉睫。本研究以城镇粪便处理工艺为研究对象,以建立技术、经济、社会环境综合效益评估方法为目标,在经济效益指标分析的基础上,建立了技术因素、经济因素、社会环境因素综合效益评估指标体系,采用层次分析法对城镇粪便处理技术进行综合评估。经济指标分析结果:总投资收益率指标,堆肥化工艺最高,达到25.76%,二级处理工艺总投资收益率最低。财务净现值指标,二级处理工艺、堆肥化工艺、堆肥化与水处理结合工艺、堆肥与沼气化结合工艺四种工艺中,堆肥化工艺财务净现值最高。所得税后动态投资回收期指标,堆肥化工艺回收期时间最短。在经济指标定量评价的基础上,应用层次分析法建模,从技术因素、经济效益因素、社会环境因素三个角度综合考虑,定量与定性分析相结合,通过专家调查问卷,计算出目标层权重值。通过专家打分法对各处理方案打分,最后得出各方案的最终分值,进而进行方案比选。层次分析法评估结果显示,堆肥化工艺要优于其余三种工艺。论文的经济评价方法及方案比选在粪便处理厂建设可研阶段具有较高的参考价值,具有很好的理论价值和实践意义。本研究将在一定程度上为城镇粪便处理厂的投资建设提供了有力理论依据,从而更好地为投资决策服务。
[Abstract]:With the increase of urban population, the amount of urban excrement is increasing day by day. The choice of urban fecal disposal scheme should not only analyze the reliability from the point of view of technology, but also analyze its feasibility from the angle of economic evaluation and social environmental impact. If the improper disposal of urban feces will cause environmental pollution and affect the space and quality of human life, the choice of urban fecal disposal scheme is crucial in the decision-making of urban infrastructure construction. The question of resources is imminent. In this study, the technology of urban fecal disposal was taken as the research object, and the comprehensive benefit evaluation method of technology, economy and social environment was established. Based on the analysis of economic benefit index, the technical factors and economic factors were established. The comprehensive benefit evaluation index system of social environmental factors was used to evaluate the technology of urban fecal disposal by analytic hierarchy process (AHP). The results of economic index analysis showed that the total investment return rate was the highest in composting process (25.76%) and the lowest in secondary treatment process. Financial NPV index, secondary treatment process, composting and water treatment combined process, composting and biogas combined process four processes, composting process financial NPV is the highest. After income tax dynamic investment payback period index, composting process payback time is the shortest. On the basis of quantitative evaluation of economic indicators, the analytic hierarchy process (AHP) is applied to model the model, considering the technical factors, economic benefits factors and social environmental factors, combining quantitative and qualitative analysis, through expert questionnaire, The weight of the target layer is calculated. Finally, the final value of each scheme is obtained through the expert scoring method, and then the scheme comparison is carried out. The results of analytic hierarchy process (AHP) showed that composting process was superior to the other three processes. The economic evaluation methods and schemes of this paper have higher reference value, better theoretical value and practical significance than those selected in the study stage of construction of faecal treatment plant. To a certain extent, this study will provide a powerful theoretical basis for the investment and construction of urban faecal disposal plants, thus providing better service for investment decision-making.
【学位授予单位】：清华大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X799.3

【参考文献】