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Sustainable Waste Disposal Systems
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Sustainable Waste Disposal Systems

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Environmental Sustainability and Applications".

Deadline for manuscript submissions: closed (15 December 2021)

Special Issue Editor

Prof. Dr. Gbekeloluwa B. Oguntimein

E-Mail Website
Guest Editor
Department of Civil Engineering, Morgan State University, Baltimore, MD 21251, USA
Interests: environmental impact and risk assessment; water supply engineering; biological wastewater treatment; civil engineering project management; sustainable energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Scientists and engineers have been working together to find the solution to the production of sustainable energy from waste material. According Environmental Protection Agency (EPA) solid waste can be broken down into two categories namely non-hazardous waste and hazardous waste. Mostly generated from human activities, nonhazardous waste come from relatively innocuous substances such as food and paper waste to toxic substances such as paint, batteries, asbestos, healthcare waste, sewage sludge derived from wastewater treatment and extreme example, high-level (radioactive) waste in the form of spent nuclear fuel rods. Numerous classifications of solid wastes have been proposed depending on their origin and risk to human and environmental health. Three million tons of waste is generate every years by human activity. In the Urban countries where the population is increasing incredible waste is major issues. For example, the United States is facing a huge solid waste disposal problem, especially in urban areas. US citizens produce more than 4 lbs. or 2kg of waste per person per day, more waste than can be disposed of in an environmentally sound but economic an local manner. However, most discarded waste can be reused or recycled, one of the principles of most waste management philosophies. There are many types of techniques that are being practiced to minimize environmental waste impact such as landfills facility, composting waste, recycling waste, converting waste to energy, and using as fertilizer for plants. All of these techniques have minimized the waste impact on environmental but have not provided a sustainable environmental solution. The goal of the papers to provide article focusing on sustainable environmental solution that will improve the environment, ecosystem, and minimize waste.

Prof. Dr. Gbekeloluwa B. Oguntimein
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Sustainability
  • Sustainability Development Goals
  • Life Cycle Assessment
  • Municipal Solid Waste (MSW)
  • E-Waste
  • Construction and Demolition Waste (CDW) management
  • Waste-to-Energy (WTE)
  • Atmospheric emissions and Pollutants Assessment

Published Papers (2 papers)

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Research

12 pages, 1284 KiB  
Article
Sustainability Assessment of Municipal Solid Waste in Baltimore USA
by Samuel O. Alamu, Ayodeji Wemida, Tiyobistiya Tsegaye and Gbekeloluwa Oguntimein
Sustainability 2021, 13(4), 1915; https://doi.org/10.3390/su13041915 - 10 Feb 2021
Cited by 8 | Viewed by 2995
Abstract
Sustainability assessment of municipal solid waste management requires a holistic approach in evaluating the impacts of current technology and processes. In this study, the sustainability analysis of the Municipal Solid Waste (MSW) incineration plant in Baltimore city was performed to determine its environmental, [...] Read more.
Sustainability assessment of municipal solid waste management requires a holistic approach in evaluating the impacts of current technology and processes. In this study, the sustainability analysis of the Municipal Solid Waste (MSW) incineration plant in Baltimore city was performed to determine its environmental, economic, and social impacts. The city’s major waste-to-energy generation plant has benefitted the city of Baltimore since inception till date in terms of waste processing, resulting in electricity and steam production for more than 40,000 homes and over 200 businesses. The life cycle impact of the incineration plant was analyzed using the Simapro life cycle assessment (LCA) software with the Building for Environmental and Economic Sustainability (BEES) database for correlation. The results obtained upon analysis show larger values of Global Warming Potential and eutrophication potential as 6.46 × 108 Gg of CO2 equivalence and 2.27 × 106 Gg N equivalence, respectively. These values resulted from the higher amount of fossil CO2 and NOx emitted from the plant. The acidification potential of 1.66 × 1017 H+ mmole eq resulted from the SO2 emitted by the incineration plant. The incineration plant exceeded the limitations set by the Environmental Protection Agency (EPA) on NOx (150 ppm), which is detrimental to the well-being of people as shown by this study. Installing an improved processing technology such as a Selected Catalytic Reactor (SCR) can drastically reduce the NOx emission to 45 ppm. Life Cycle Assessment was confirmed suitable in evaluating the environmental impacts of the MSW-to-energy treatment approach. Full article
(This article belongs to the Special Issue Sustainable Waste Disposal Systems)
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12 pages, 1040 KiB  
Article
Environmental Sustainability Enhancement of Waste Disposal Sites in Developing Countries through Controlling Greenhouse Gas Emissions
by Ihsanullah Sohoo, Marco Ritzkowski, Kerstin Kuchta and Senem Önen Cinar
Sustainability 2021, 13(1), 151; https://doi.org/10.3390/su13010151 - 25 Dec 2020
Cited by 21 | Viewed by 4579
Abstract
Sustainable management of municipal solid waste is one of the major challenges for authorities in developing countries. Current waste disposal methods in Pakistan and other developing countries are not meeting standards of any proper waste management system opted for in the developed world. [...] Read more.
Sustainable management of municipal solid waste is one of the major challenges for authorities in developing countries. Current waste disposal methods in Pakistan and other developing countries are not meeting standards of any proper waste management system opted for in the developed world. This mismanagement of waste is leading to serious environmental problems at local as well as global levels. This study aims to investigate the methane emissions from waste dumpsites in the city of Karachi, Pakistan, and to propose an effective approach to enhance their environmental sustainability. The methane emissions from waste disposal sites were assessed by simulating four different landfill situations during the landfill simulation reactor experiment. The residual methane reduction potential of each waste disposal approach was assessed by a biochemical methane test of waste after the experiment. It is estimated that in the present situation, about 11,500 tons of CO2-eq methane is released annually from waste disposal sites in Karachi. The convectional anaerobic landfill with methane capturing facilities and post-aeration operation was found to be the most environmentally sustainable approach with controlling 65% of residual methane emissions in comparison with the present scenario. For the development of new landfill sites, we recommend the bioreactor landfill approach with methane recovery and post-care (in-situ aeration). Full article
(This article belongs to the Special Issue Sustainable Waste Disposal Systems)
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