Research On The Status Quo, Physical And Chemical Properties And Disposal Methods Of Urban Domestic Garbage In Qingdao

This paper tests and analyzes the physical components,bulk density,moisture content and calorific value of municipal solid waste(MSW)in Qingdao from 2004 to2016,and analyzes the data of management system,policy planning,collection and transportation of MSW methods,physical and chemical properties,terminal disposal,garbage classification etc,the paper analyzes the existing problems of garbage disposal in Qingdao and puts forward some suggestions.After research and analysis,the following conclusions are drawn:(1)From 2004 to 2016,the average content of organic matter of MSW in Qingdao is68.00%,the average content of waste products is 25.60%,the average content of inorganic substances is 6.26%,the average content of toxic and hazardous wastes is0.14%.It is predicted that the change of organic matter content in Qingdao MSW will not be especially obvious in the next few years,the proportion of recyclables in domestic waste will gradually increase,the content of inorganic substances will be further reduced,and toxic and harmful species will also remain stable;(2)From 2004 to 2016,the average moisture content of MSW in Qingdao is 55.89%,the average bulk density reached 253.8kg / m3 and the average calorific value reached5241 KJ / kg.It is predicted that the moisture content of MSW in Qingdao will remain above 50% in the next few years,the bulk density of garbage will maintain stable,the heat value of garbage will continue to increase steadily,and the waste is suitable for incineration treatment;(3)From 2004 to 2016,the average annual growth rate of MSW in Qingdao is 11.7%.In 2016,the daily average amount of the MSW in Qingdao reached 8,475 tons / day.It is estimated that by 2018,it will exceed 10,000 tons / day,garbage disposal pressure is greater.In the end disposal of garbage,the MSW in Qingdao should be given priority to incineration treatment as the primary treatment.We should take necessary measures to reduce the moisture content of refuse,improve the calorific value of refuse,and further improve the suitability of MSW incineration.If the conditions are suitable,the construction of park waste disposal facilities should be carried out in the whole city,in order to achieve garbage "reduction,recycling,harmless" disposal goals.