Abstract

The treatment, disposal and management of municipal solid waste strongly depend on the composition and characteristics of municipal solid waste. The Physical composition of MSW and its influencing factors were investigated and analyzed in the residential of Beijing area. The result showed that the composition of MSW in four seasons was similar, and the kitchen was the main composition of MSW, accounting for 69-74% of the total amount of MSW. The average age of families, educational backgrounds, family income and building area have a great influence on the physical proportion of MSW. As the average age of the family increases, the proportion of other wastes was gradually reduced, the proportion of the harmful waste was increased. With the increase of educational backgrounds and family income, the content of kitchen waste decreased, while the content of recyclable waste increased obviously. The 50 square meters was used as a dividing point for the residential area of the family, the kitchen waste decreased at first and then increased, while the proportion of disposable packaging and other waste increases at first and then decreases with the increase of building area.

Highlights

  • MSW is a mixture of many kinds of wastes and a misplaced resource [1,2]

  • It was clear to see that the percentage of kitchen waste was obviously higher than other components

  • Except for autumn, the average content of kitchen waste was above 70% in spring, summer and winter

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Summary

Introduction

MSW is a mixture of many kinds of wastes and a misplaced resource [1,2]. The treatment, disposal and management of municipal solid waste strongly depend on the composition and characteristics of municipal solid waste [3,4]. Climate conditions, living habits, fuel structure and other factors affect the composition of municipal solid waste components, so when these factors change or change some external conditions, some physical and chemical characteristics of municipal solid waste will change [5,6,7]. It is very important for the management of MSW to study the physical composition and clarify the main factors affecting its physical composition. This study can provide the technical data for the reduction, harmless and resource recovery of MSW in Beijing

Materials and methods
The effect of seasonal variation on the components of MSW
The effect of average age of the family on the components of MSW
Effect of family building area on the components of MSW
Effect of family income on the components of MSW
Conclusions
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