Urban household solid waste generation and collection in Beijing, China
Highlights
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We estimate that the total quantity of recyclable household solid waste was 1.805 million tons in Beijing 2013, and 72% of that was collected.
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The main generation categories were waste paper (24.4%), waste glass bottles (23.7%) and waste furniture (14.3%).
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The number of permanent recycling sites is far less than the curbside peddlers.
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The recycling rate of solid waste generated by urban households in Beijing was not low but varied significantly among different types of solid waste.
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We suggest accelerating the construction of permanent recycling centers and innovating the recycling modes.
Abstract
The household solid waste generated in Beijing is increasing quickly due to rapid population growth and lifestyle changes. However, there are no rigorous data on the generation and collection of recyclable household solid waste. The Beijing city government needs this information to establish policies and make plans for waste management. To address this need for information, we undertook the first comprehensive study of recyclable household solid waste for Beijing. We surveyed 500 families across sixteen districts in Beijing. We also analyzed the quantities, spatial distribution and categories of collected waste handled by permanent recycling centers and curbside recyclers for 340 of the 9797 city-defined residential areas of Beijing. From our results, we estimate that the total quantity of recyclable household solid waste was 1.805 million tons in 2013, and 72% of that was collected. The main generation categories were waste paper (24.4%), waste glass bottles (23.7%) and waste furniture (14.3%). In addition, we estimate there were 5.7 thousand permanent recycling centers and 22.8 thousand curbside recyclers in Beijing. The recycling rate of solid waste generated by urban households in Beijing was not low but varied significantly among different types of solid waste. The collecting capability of permanent recycling centers was inadequate. Urban residents had low awareness of some categories of solid waste recycling. The statistical system for waste management needed to be improved. Based on the problems mentioned above, the implications for solid waste management were discussed. We suggest accelerating the construction of permanent recycling centers and innovating the recycling modes. Meanwhile, it is also necessary to strengthen education on solid waste recycling and improve the recycling information statistics.
Introduction
With the increase in urbanization, continuous growth in the population and a changing consumption structure, solid waste is growing rapidly in Beijing (Liu et al., 2009). In particular, the increase in solid waste generated by urban households is prominent (Gu et al., 2015). Large amounts of solid waste can be recycled (Cheng, 2006, Wang et al., 2014). With the prominence of resource shortage and environmental pollution, the Chinese government is paying greater attention to the recycling of solid waste (Wang, 2006, Feng and Zhang, 2009). Recycling solid waste helps to both conserve resources and reduce pollution (Li, 2000, Yu and Wang, 2001). To recycle solid waste successfully, one must have knowledge on generation and collection, including the categories, quantities, participants and channels for disposal. The success of waste management planning lies in the related knowledge and data on waste generation and collection profiles (Chen and Chang, 2000, Zaman and Lehmann, 2013, Oribe-Garcia et al., 2015).
Several studies have been carried out to estimate waste generation in different countries and areas around the world. Most previous studies use statistical models such as factor models or regression models to identify the interrelationships between different socio-economic factors and urban waste generation (Afon and Okewole, 2007, Ojeda-Benítez et al., 2008, Lebersorger and Beigl, 2011). However, these models have two main drawbacks, data collection and identifying relevant explanatory variables within a heterogeneous group (Oribe-Garcia et al., 2015). Although many studies have been undertaken, due to the widespread distribution and diverse categories of urban household solid waste it is still difficult to obtain detailed information on waste generation and collection. In particular, information on participants, disposal methods, collection channels, and collecting proportions of different types of waste is still lacking. In China, some scholars have employed models to explore waste generation by different households or organizations in some provinces or cities of China (Li et al., 2011, Fu et al., 2015). However, there are no detailed data on recyclable household solid waste collection in Beijing. The Beijing city government needs this information to make appropriate policies and plans for waste management. To address this need for information, we undertook the first comprehensive study of recyclable household solid waste for Beijing. Due to our research goal, we did not use conventional household audits as our research method. Our method provides a new convenient and feasible way for the city government, which has no historical data or sufficient information on waste generation and collection, to gain data on waste management. The results of our research will be able to support decision-making processes for the Beijing government’s short-term planning for urban recyclable waste management.
Section snippets
Study area
The investigation was carried out in 16 districts and counties, These districts were divided according to the administrative divisions and functional areas of Beijing, China.
Investigation method
A random sampling survey was carried out. We investigated 500 urban households and 989 recycling sites in 340 residential areas through an internet questionnaire and face-to-face surveys. “Urban households” is defined as families with one or more urban residents. They were counted according to the
Variety of recyclable household solid waste
The results showed that 17 types of solid waste were generated by urban households in Beijing in 2013, namely, TVs, refrigerators, air conditioners, washing machines, computers, mobile phones, range hoods, paper, plastics, ring-pull cans, glass bottles, dry batteries, fluorescent lamps, furniture, clothes, blankets and shoes. The proportions were shown in Table 3. The proportion of paper was the highest, mainly because it included various types of paper, such as newspapers, books, magazines,
Conclusions and recommendations
A comprehensive survey on the household solid waste generation and collection of Beijing has been made. The surveyed data on generation and collection, including the categories, quantities, participants and channels for disposal has been analyzed. The results will be able to support decision-making processes for the Beijing government to improve urban recyclable waste management. The key findings of our survey and recommendations for improving the recyclable household waste management are as
Acknowledgements
This study was conducted as part of the “Ecological transformation development strategy of Super-large city in China” (Item No. 1K104001201501) funded by Natural Science Foundation of China, and also supported by the project “Urban ecological development: theory and key technology research” (Item No. 033000546615001), project “X0104001201401” and “X5104001201302” funded by Beijing University of Technology.