| With the fast development of economy, enhancement of people's standard of living,increasing of urban population and speedup of urbanization,the generation of municipal solid waste (MSW) has heavily risen,the elements of MSW have change.This not only brings a great harm on urban environment,but also hinders urban economic growth. Therefore it is very crucial for the disposal and synthetic utilization to build MSW sorting collection system in order to reduce the quantity of MSW.Firstly this thesis investigates the present situation of Chengdu MSW disposal and collection,points out the defects of mixing collection and disposal.Secondly this thesis investigates and analyzes all aspects,including the principles,the aids,the foundations and methods of sortiong collection of MSW, interprets the importance and necessity of the sorting collection,analyzes and predicts the outputs and elements of chengdu MSW,interprets the feasibility of sorting collection of MSW.On the basis of these,four projects of sorting collection are established eventually,compared and analyzed.Public investigation is taken about the four projects of sorting collection.This thesis has an emphasis on the investigation of the evaluation module about the MSW sorting collection.Through the choice of the evaluating indicator the analytic hierarchy process model is established and the sorting collection projects are optimized.Through analyzing Chengdu's MSW sorting collection the established sorting collection system is reasonable and practical.It can give correalative governors some practical reference and advice from the point of view of academy studies. |
