Environmental impact of carbon cross-media metabolism in waste management: A case study of municipal solid waste treatment systems in China

2019 ◽  
Vol 674 ◽  
pp. 512-523 ◽  
Author(s):  
Zongguo Wen ◽  
Chen Chen ◽  
Ning Ai ◽  
Weinan Bai ◽  
Wenting Zhang ◽  
...  
2019 ◽  
Vol 37 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Geraldo C Oliveira Neto ◽  
José MF Correia

The aim of this study was to assess the economic and environmental advantages of implementing reverse logistics to recycle solid waste from construction companies. The adopted research method was based on a systematic literature review and two case studies. For the economic assessment, the return on investment, the internal rate of return, and the discounted payback factors were considered, while the material intensity factor was used for the environmental impact assessment. This study shows that there are economic and environmental advantages associated with the use of reverse logistics for solid waste treatment and recycling. In 2016, the purchase of recycled blocks resulted in a profit of over US$45,000 for one company, and another company earned almost US$250,000 in the same year by recycling solid waste from manufacturing blocks and selling iron, wood, paper, and plastics. Furthermore, the environmental impact was reduced. This paper contributes to the dissemination of knowledge regarding the advantages of adopting reverse logistics for recycling construction and demolition waste, and creates new opportunities for companies.


2020 ◽  
pp. 0734242X2094715
Author(s):  
Xu Chu ◽  
Zhiyong He ◽  
Xiuhua Fan ◽  
Ling Zhang ◽  
Hong Wen ◽  
...  

China is experiencing an enormous increase in municipal household solid waste (MHSW) generation and is facing multiple problems associated with the treatment of MHSW. This paper analyses factors affecting residents’ satisfaction with MHSW treatment performance. Six factors were identified by the Delphi method: (a) pick-up frequency by waste collection vehicles, (b) fund supply situation, (c) charging standard for waste treatment, (d) waste bin arrangement, (e) laws and regulations, (f) publicity and education. We examine the significance of these six influencing factors, estimating binary logistic regression models. Data for this study are derived from the survey responses of 469 households in Harbin, one of the largest cities in northeast China. The results indicate that ‘pick-up frequency by waste collection vehicles’ is ranked the first and most important determinant of Harbin residents’ satisfaction with MHSW treatment; this is closely followed by ‘publicity and education’. The third and fourth significant influencing factors, respectively, are ‘fund supply situation’ and ‘charging standard for waste treatment’. The last two factors are ‘laws and regulations’ and ‘waste bin arrangement’. By understanding the influence of various factors on residents’ satisfaction, this study aims to help in designing an effective waste management system to reduce the cost of MHSW management, and to raise the residents’ satisfaction with municipal solid waste treatment. Based on the research findings, we advocate that establishing a reasonable waste transport (pick-up) system as well as strengthening publicity and education of waste management are key to improving residents’ satisfaction with the MHSW treatment performance.


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