Environmental impact of organic fraction of municipal solid waste treatment by composting in Sri Lanka

2021 ◽  
Author(s):  
Rasangika Thathsaranee Weligama Thuppahige ◽  
Shabbir H. Gheewala ◽  
Sandhya Babel
Keyword(s):  
Sri Lanka ◽  
Environmental Impact ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Treatment ◽  
Organic Fraction ◽  
Solid Waste Treatment

Environmental impact assessment of organic fraction of municipal solid waste treatment by anaerobic digestion in Sri Lanka

2021 ◽  
pp. 0734242X2110134
Author(s):  
Rasangika Thathsaranee Weligama Thuppahige ◽  
Sandhya Babel
Keyword(s):  
Anaerobic Digestion ◽  
Sri Lanka ◽  
Environmental Impact ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Resource Scarcity ◽  
Policy Formation ◽  
Ozone Formation ◽  
Organic Fraction ◽  
Management Options

The management of organic fraction of municipal solid waste (OFMSW) has continued to be a significant challenge in Sri Lanka. Anaerobic digestion is one of the management options of OFMSW. However, it generates unavoidable environmental impacts that should be addressed. The present study focuses to assess the environmental impact of a full-scale anaerobic digestion plant in Sri Lanka from a life cycle perspective. The inventory data were obtained from direct interviews and field measurements. Environmental burdens were found to be in terms of global warming potential (230 kg CO2 eq) ozone formation on human health (6.15 × 10−6 kg NO x eq), freshwater eutrophication (2.92 × 10−3 kg P eq), freshwater ecotoxicity (9.27 × 10−5 kg 1,4 DCB eq), human carcinogenic toxicity (3.98 × 10−4 kg 1,4 DCB eq), land use (1.32 × 10−4 m2 a crop eq) and water consumption (2.23 × 10−2 m3). The stratospheric ozone depletion, fine particulate matter formation, ozone formation on terrestrial ecosystems, terrestrial acidification, marine eutrophication, ecotoxicity (terrestrial and marine), human non-carcinogenic toxicity, mineral resource scarcity and fossil resource scarcity, were avoided due to electricity production. Results show that the direct gaseous emissions and digestate generation should be addressed in order to reduce the burdens from the anaerobic digestion plant. Finally, the results of the study could help in policy formation and decision-making in selecting future waste management systems in Sri Lanka.

Exergetic sustainability analysis of municipal solid waste treatment systems: A systematic critical review

2022 ◽  
Vol 156 ◽  
pp. 111975
Author(s):  
Salman Soltanian ◽  
Soteris A. Kalogirou ◽  
Meisam Ranjbari ◽  
Hamid Amiri ◽  
Omid Mahian ◽  
...  
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Critical Review ◽  
Waste Treatment ◽  
Sustainability Analysis ◽  
Solid Waste Treatment

Bioreactor landfill technology in municipal solid waste treatment: An overview

2010 ◽  
Vol 31 (1) ◽  
pp. 77-97 ◽  
Author(s):  
Sunil Kumar ◽  
Chart Chiemchaisri ◽  
Ackmez Mudhoo
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Waste Treatment ◽  
Bioreactor Landfill ◽  
Solid Waste Treatment

scholarly journals QUANTITATIVE EVALUATION OF ALTERNATIVES FOR MUNICIPAL SOLID WASTE TREATMENT IN BULGARIA

2006 ◽  
Vol 39 (19) ◽  
pp. 189-194
Author(s):  
Alexandra Grancharova ◽  
Dimcho Boiadjiev ◽  
Anna Lekova ◽  
Snezhana Kostova
Keyword(s):  
Municipal Solid Waste ◽  
Solid Waste ◽  
Quantitative Evaluation ◽  
Waste Treatment ◽  
Solid Waste Treatment

Process Simulation of Anaerobic Digestion Process for Municipal Solid Waste Treatment

2018 ◽  
pp. 71-83
Author(s):  
Noorlisa Harun ◽  
Wan Hanisah W. Ibrahim ◽  
Muhamad Faez Lukman ◽  
Muhammad Hafizuddin Mat Yusoff ◽  
Nur Fathin Shamirah Daud ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Process Simulation ◽  
Waste Treatment ◽  
Anaerobic Digestion Process ◽  
Digestion Process ◽  
Solid Waste Treatment

Environmental and economic advantages of adopting reverse logistics for recycling construction and demolition waste: A case study of Brazilian construction and recycling companies

2019 ◽  
Vol 37 (2) ◽  
pp. 176-185 ◽  
Author(s):  
Geraldo C Oliveira Neto ◽  
José MF Correia
Keyword(s):  
Environmental Impact ◽  
Solid Waste ◽  
Reverse Logistics ◽  
Waste Treatment ◽  
Economic Assessment ◽  
Construction And Demolition Waste ◽  
Demolition Waste ◽  
Construction Companies ◽  
Solid Waste Treatment

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.

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