Environmental Impact Assessment of Compost Production from Municipal Solid Waste Using Life Cycle Assessment (Case Study: Rasht City)

Document Type : Research Paper

Authors

1 Associate Professor in Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

2 M.Sc. Student in Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

3 Ph.D. Student in Department of Food, Agricultural and Biological Engineering, The Ohio State University, Wooster, OH, United States

Abstract

Municipal solid waste, known as reject material, is increasingly being added to the world, causing more problems, such as air pollution and greenhouse gas emissions in the environment. As a result, the need for proper and sustainable waste management is felt more by managers. Accordingly, compost production is one of the methods used in agriculture in addition to reducing pollution. In Rasht, this method is used to manage 400 tonns of waste per day. In the process of composting, pollutants are created that affect the environment. In this study, the CML-IA baseline V3.04 / World 2000 method using SimaPro software was applied to evaluate the life cycle and 11 impact categories have been investigated and finally the results were normalized and weighed. The functional unit in this study was 400 tonnes of compost produced per day. The results showed that the global warming potential was calculated with 4.28×103 kgCO2 and the largest share in this section was due to direct emissions and transportation. Also, normalization results showed that compost production from waste had the most effect on marine aquatic ecotoxicity and human toxicity potential, respectively.

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References

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Iranian Journal of Biosystems Engineering
Volume 51, Issue 1
April 2020
Pages 77-87

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History

  • Receive Date: 29 May 2019
  • Revise Date: 14 September 2019
  • Accept Date: 25 September 2019

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