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Sustainable Study of Chemical Engineering and Waste Management

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 4965

Special Issue Editors


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Guest Editor
Chemical Engineering Program, Faculty of Engineering, Universiti Malaysia Sabah, Jln UMS, Kota Kinabalu 88400, Sabah, Malaysia
Interests: waste processing technology; campus sustainability

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Guest Editor
Chemical Engineering Program, Faculty of Engineering, Universiti Malaysia Sabah, Jln UMS, Kota Kinabalu 88400, Sabah, Malaysia
Interests: particle technology; energy; materials

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Guest Editor
Chemical Engineering Program, Faculty of Engineering, Universiti Malaysia Sabah, Jln UMS, Kota Kinabalu 88400, Sabah, Malaysia
Interests: enzymatic reaction; sustainable materials and process; sustainable products; composting; anaerobic digestion

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Guest Editor
Chemical Engineering Program, Faculty of Engineering, Universiti Malaysia Sabah, Jln UMS, Kota Kinabalu 88400, Sabah, Malaysia
Interests: sustainable materials and process; biopolymer and bioresources; sustainable products; composting; functional polymeric materials; nanocellulose process and applications; polysaccharides; polymer composites

Special Issue Information

Dear Colleagues,

Climate change, rapid urbanization and the increase in population have motivated the global research community to obtain sustainable-oriented results for achieving the Sustainable Development Goals (SDGs). To ensure sustainability for future generations, sustainable chemical engineering design is vital, in which efficient processes are designed with smaller footprints. Besides affordable water and energy production, waste management is also an important pillar for sustainability. In this regard, the fundamentals and applications in a wide range of interdisciplinary fields that cover the topics in sustainability, including sustainable processes and development, process optimization and intensification, waste management and technology, affordable clean energy production and efficiency, product utilization, engineering education, carbon, and functional materials, are highlighted. It should be noted that engineering education is identified as one of the most effective mediums for raising environmental awareness and promoting sustainable development.

This Special Issue aims to crowdsource the contributions and impact of research, development, and innovations with a sustainable approach to science, engineering, and technology aspects in chemical engineering as a way to champion the SDGs by highlighting sustainable studies and waste management. We invite high-quality original research articles and research reviews, as well as case studies, considering the results of conceptual, constructive, empirical, experimental, or theoretical studies that include, but are not limited to, the following:

  • Waste minimization and zero waste management;
  • Wastewater treatment and reuse;
  • Landfill and leachate treatment;
  • Composting, anaerobic digestion, and digestate disposal;
  • Thermal process, ash disposal, and air pollution control;
  • Clean energy and microbial fuel cell;
  • Energy from wind, hydro, biogas, or biodigesters;
  • Process intensification, control, safety, and optimization;
  • Green engineering for city, campus, and tourist sites;
  • Low-cost technology for rural development;
  • Sustainable and renewable energy;
  • Community empowerment and participation with technology;
  • Urban agriculture and food production;
  • Sustainable product/ material recovery;
  • Policy financing of sustainable technology and solutions;
  • Engineering education.

Dr. Abu Zahrim Yaser
Dr. Rachel Fran Mansa
Dr. Mariani Rajin
Dr. Junidah Lamaming
Guest Editors

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

  • process intensification
  • waste management
  • green engineering
  • sustainable approach
  • zero waste
  • chemical engineering
  • sustainable development
  • renewable energy

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Published Papers (2 papers)

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Research

24 pages, 12154 KiB  
Article
Integration of Multicriteria Decision Analysis and GIS for Evaluating the Site Suitability for the Landfill in Hargeisa City and Its Environs, Somaliland
by Nimcan Abdi Mohamed, Yemane G. Asfaha and Akiber Chufo Wachemo
Sustainability 2023, 15(10), 8192; https://doi.org/10.3390/su15108192 - 18 May 2023
Cited by 3 | Viewed by 2535
Abstract
Poor waste management and illegal waste shipments adversely affect the environment and public health, resulting in environmental degradation. Indeed, environmental degradation is one of the most visible problems in Hargeisa. Currently, solid waste is disposed of at two dumping sites within the city [...] Read more.
Poor waste management and illegal waste shipments adversely affect the environment and public health, resulting in environmental degradation. Indeed, environmental degradation is one of the most visible problems in Hargeisa. Currently, solid waste is disposed of at two dumping sites within the city limits, causing problematic and unsanitary conditions. Moreover, the existing dumpsites are on the verge of closure, highlighting an important need that must be addressed. This research aimed to integrate multicriteria decision analysis and GIS to evaluate the site suitability for landfill in Hargeisa, Somaliland. For this purpose, eleven significant parameters were selected: proximity to built-up areas, surface water, groundwater well points, sensitive sites (airports), land use/land cover, geology, soil type, elevation, slopes, roads, and separation from existing dumpsites. Next, these were combined via an analytical hierarchy technique. Subsequently, restriction buffer analysis was performed on the seven parameters to obtain better and more accurate results, and restricted zones were omitted. Furthermore, the pair-wise comparison used to obtain priorities between the selected criteria showed that the LULC is the most significant criterion in the model, with a relative weight of 0.1829, followed by habitations, with 0.1506. The overall result reveals that approximately 68.96% (21,060.9 ha) of the study area is unsuitable, while 24.36% (7441.53 ha) and 6.68% were considered less and highly appropriate zones, respectively. As a result, this study reveals that despite the vast extent of the study area, the areas ideal for landfill remain severely limited. Therefore, in light of the findings of this study, the municipal council of Hargeisa must reevaluate dumpsite locations and waste management practices to address the issues in the region in a timely manner. Furthermore, this systematic research approach will assist regional and global researchers, policymakers, and municipal governments. Full article
(This article belongs to the Special Issue Sustainable Study of Chemical Engineering and Waste Management)
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17 pages, 1398 KiB  
Article
A Joint Computer-Aided Simulation and Water-Energy-Product (WEP) Approach for Technical Evaluation of PVC Production
by Eduardo Aguilar-Vásquez, Miguel Ramos-Olmos and Ángel Darío González-Delgado
Sustainability 2023, 15(10), 8096; https://doi.org/10.3390/su15108096 - 16 May 2023
Viewed by 1671
Abstract
Recently, polyvinyl chloride (PVC) has emerged as one of the most widely used polymers on the planet due to its versatile mechanical properties and chemical resistance. Suspension polymerization is the most employed method for its production, owing to its ability to control polymer [...] Read more.
Recently, polyvinyl chloride (PVC) has emerged as one of the most widely used polymers on the planet due to its versatile mechanical properties and chemical resistance. Suspension polymerization is the most employed method for its production, owing to its ability to control polymer characteristics and cost-effectiveness. However, issues such as water and energy consumption and management in the process have sparked interest in researching the performance and sustainability of the process. In this study, an approach for the technical evaluation of the PVC production process by suspension is proposed, using 11 indicators related to Water, Energy and Product (WEP), based on technical parameters and process simulation for the diagnosis of the process, framed under sustainability criteria. The simulation included the purification and drying stages of the polymer, along with a monomer recirculation stage. The properties of PVC obtained through the process simulation were over 90% accurate when compared to the literature. The technical analysis found that the process has high performance in the handling of vinyl chloride monomer (VCM) and PVC, with a production yield of 99% and an index of reused unconverted material of 99%. On the other hand, there are opportunities for improvement in the process, related to water usage management, since the indicator of wastewater production was 80% and the fractional water consumption was 1.8 m3/t. Regarding energy use, the process exhibits high consumption and an energy-specific intensity of 4682 MJ/t of PVC, but it has a low overall cost due to the use of natural gas in some stages of the process. Full article
(This article belongs to the Special Issue Sustainable Study of Chemical Engineering and Waste Management)
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