Study On Suitability Evaluation Of Unsewered Public Toilet Sanitation System

The "Toilet Revolution" is a major livelihood project aimed at improving people’s well-being and promoting high-quality development.In China,there is still no perfect drainage facilities in the areas outside the cities and towns,so it is necessary to popularize and apply the public toilet sanitation system without sewer to realize the control of toilet excrement.There are many technology types of public toilet sanitation system without sewer,which is greatly affected by environmental constraints,and the applicability of the system in different regions is obviously different.At the present stage,in the process of carrying out the "toilet revolution" in various places,there is a lack of scientific judgment on the adaptability of various public toilet sanitation systems without sewers,leading to the widespread occurrence of "acclimatization" in the application of sanitation systems.Science to distinguish various applicable conditions without drain public toilet sanitation systems,is to ensure that the various of the sewer public toilet sanitation system with effective foundation,this paper constructed a no sewer public toilet sanitation system suitability evaluation method,so as to not drain the selection of public toilet sanitation systems to provide technical guidance.The main research contents and results of this paper are as follows:In this paper,the definition of public toilet sanitation system without sewer is defined,the technical types and characteristics of various public toilet sanitation systems without sewer are analyzed,and the selection principles are expounded.The applicability evaluation method based on combined weight +TOPSOS was established,and the evaluation index system of public toilet sanitation system without sewer was constructed.First of all,in qinghai province tourism toilet,for example,the use of "combination weight + TOPSOS" the applicability of the evaluation method,for all kinds of sewage public toilet sanitation system suitability evaluation analyzed,its comprehensive performance to include: the manure diversity source separation,biological fermentation type toilet,toilet water packaging latrines,circulation flushing toilets with urine blunt dung,latrines,true air bubble sealing type toilet,water circulation in advanced treatment-flush toilets.