Abstract
The focus of waste management is to control pollution produced directly from the sources, rather than removing it from soil, water and other such polluted bodies. This study defined solid waste source (SWS) as a space where solid waste is directly produced and proposed a method for measuring the solid waste generated by SWSs. Then, taking Shengzhou, China, as an example, empirical research was conducted on the spatial classification and treatment protocol of SWSs. The results show that (1) A hierarchical spatial system of SWSs can be constructed, which consists of 3 classes, 3 subclasses and 14 types. (2) The main forms of solid waste in Shengzhou are domestic waste, industrial solid waste and agricultural solid waste. According to the total amount of solid waste produced, all SWSs can be divided into five levels: maximum, large, medium, low and none produced. (3) In view of the main SWSs with a large amount of solid waste produced, three methods—combining energy-saving, emission reduction and resource utilization; multiple steps of classification, transportation, storage and treatment; and the use of piggeries with waste-absorbing land—are proposed to realize the control of solid waste pollution at-source.
Highlights
In January 2019, the General Office of the State Council of China announced a pilot construction program entitled “No-Waste City”, which proposed a green development approach for cities to continuously promote the at-source reduction and resource utilization of solid waste and minimize its negative environmental impact [1]
The investigation results show that the moisture content of municipal solid waste is between 55% and 65%, while that of neighboring cities such as Hangzhou, Shanghai and Suzhou are 56.5%, 59.28% and 60.7%, respectively [34,35]; so this study considers the average content value of Shengzhou as 60%
This study focuses on industrial solid waste, domestic waste and agricultural solid waste
Summary
In January 2019, the General Office of the State Council of China announced a pilot construction program entitled “No-Waste City”, which proposed a green development approach for cities to continuously promote the at-source reduction and resource utilization of solid waste and minimize its negative environmental impact [1]. The annual growth rate of solid waste produced in the world is more than 8% [3,4]. From 2005 to 2010, China’s average annual production of industrial solid waste was 1.815 billion t. The amount of domestic waste gradually increased from 156 million t to 229 million t, with an average annual growth rate of 3.92% [5]. These reports indicate that with the rapid development of its economy and living standards, China’s solid waste production has grown far quicker than that of some other industrially developed countries and regions. Domestic waste has become another serious and unavoidable problem in China due to the increase in urban population brought about by rapid urbanization [7]
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