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Research Article
GIS Based MCDA Selection of Waste Management Site in Kanchanpur District, Nepal
Sushil Subedi*
,
Ashok Thakulla,
Yogesh Joshi,
Uddav Ghimire
Issue:
Volume 9, Issue 1, March 2025
Pages:
1-6
Received:
27 August 2024
Accepted:
18 September 2024
Published:
14 January 2025
DOI:
10.11648/j.ajese.20250901.11
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Abstract: Selecting an appropriate site for municipal solid waste (MSW) disposal is a significant challenge in solid waste management (SWM) for local authorities, engineers, and urban planners. Rapid population growth, industrialization, diverse community characteristics, and limited land availability exacerbate this issue. Landfill site selection requires evaluating numerous factors, including environmental, social, and economic considerations, as well as adhering to various rules and spatial data. This paper presents an integrated approach using Geographic Information Systems (GIS) and the Analytical Hierarchy Process (AHP), based on Multi-Criteria Decision Analysis (MCDA), to select the most sustainable MSW disposal site in Kanchanpur district, Nepal. Criteria for site selection were derived from existing literature, including residential proximity, roads, water bodies, slopes, elevation, and national parks. GIS was used to develop criteria maps, and AHP was employed for pairwise comparison and normalization to assign weights to the criteria. The weighted overlay tool in ArcGIS was then used to evaluate the weighted criteria maps, categorizing the site suitability into five classes: “extremely suitable”, “considerably suitable”, “moderately suitable”, “slightly suitable”, and “restricted”. The suitability map identified the most suitable areas for waste disposal, with "extremely suitable" areas ideal for immediate use, and "considerably suitable" areas offering potential for future development. This method demonstrates the effectiveness of integrating GIS and AHP for sustainable solid waste management site selection in challenging environments like the Kanchanpur district.
Abstract: Selecting an appropriate site for municipal solid waste (MSW) disposal is a significant challenge in solid waste management (SWM) for local authorities, engineers, and urban planners. Rapid population growth, industrialization, diverse community characteristics, and limited land availability exacerbate this issue. Landfill site selection requires e...
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Case Report
Supply Assurance, Affordable Prices, Energy Conservation, and Zero-Carbon Heating: Promising Directions for Social Welfare and Industrial Development
Dian Yi*,
Binghua Wang
Issue:
Volume 9, Issue 1, March 2025
Pages:
7-28
Received:
16 December 2024
Accepted:
2 January 2025
Published:
24 January 2025
Abstract: I had the privilege of conducting the field visits to several notable projects: the Inner Mongolia heating project, the Intelligent Thermal Energy Metering and Monitoring Platform of Menghua Technology, Tsinghua University's Building Energy Saving and Rural Heating solutions, Newenergy's air source heat pump, SPIC’s Shandong nuclear heating project, and the Xiangtan’s solar heat pump demonstration project. Based on my analysis of the current status and future trends of clean heating, and drawing insights from the rapid advancement of clean energy in China's electric power sector, this paper evaluates the challenges and opportunities within the heating industry. Elevated coal prices, in conjunction with limited price tolerance among residents, have led to industry-wide financial deficits and a reduction in both the motivation and available funding for energy-saving and carbon-reduction upgrades of heating systems. Moreover, the path to achieving efficient heating in small towns and rural areas remains challenging, while zero-carbon heating technologies are only beginning to demonstrate potential. In this context, it is crucial to implement policies that foster energy conservation and emission reduction while attracting investments, including long-term special bonds, to execute national strategies and bolster safety capabilities in critical sectors. Effective interactions among stakeholders can be achieved through the utilization of direct financing tools such as equity financing, bond financing, and REITs, thereby attracting more entrepreneurs and social capital into the heating industry. This will facilitate a synergistic relationship among the government, enterprises, and residents. Under government guidance, strategic directions and solutions for building energy conservation, emission reduction, and zero-carbon heating—such as heat pumps, medium and deep geothermal energy, nuclear energy, and distributed renewable energy power generation and heating—can be established. Simultaneously, the government can balance the triad of supply security, affordable prices, and environmental sustainability. By fostering technological, model, and institutional innovations, we can expedite the development of energy-saving, intelligent, clean, and zero-carbon heating technologies and industries. This industry holds promising prospects, offers robust cash flow, and has significant potential for energy conservation and emission reduction.
Abstract: I had the privilege of conducting the field visits to several notable projects: the Inner Mongolia heating project, the Intelligent Thermal Energy Metering and Monitoring Platform of Menghua Technology, Tsinghua University's Building Energy Saving and Rural Heating solutions, Newenergy's air source heat pump, SPIC’s Shandong nuclear heating project...
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Research Article
Planning of Park Areas on Territories of Destroyed Cities
Serhii Simonov,
Vitaliia Harkusha*
Issue:
Volume 9, Issue 1, March 2025
Pages:
29-35
Received:
8 February 2025
Accepted:
4 March 2025
Published:
11 March 2025
DOI:
10.11648/j.ajese.20250901.13
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Abstract: A study has been conducted on the state of cities affected by hostilities. The degree of damage to large cities and small towns in the war zone on the territory of Ukraine has been determined. An assessment of the cost of reconstruction of Ukrainian cities and the availability of state programs and mechanisms that will regulate such processes has been submitted, a review of draft laws for the restoration of damaged or completely destroyed settlements has been made. Proposals for the reconstruction of completely destroyed cities are given, taking into account the feasibility of restoring some of them. Measures for restoration work in the completely destroyed territories are proposed based on the study of world experience after military reconstruction. The world experience of countries on the territory of which large-scale tragedies with significant destruction and a large number of human casualties took place is considered in detail, as well as the processes of their impressive transformations are considered in detail. It is described how, as a result of the transition from a warring country and a completely destroyed territory, a center of peace was created and an example of honoring the memory of the victims of a tragedy that shook the world and still lives in people's memory as a reminder of painful and unnecessary experiences. In view of the events in Ukraine, it was proposed to create a recreational zone on the territory of cities that no longer exist, as a tribute to the memory of participants in hostilities on the territory of Ukraine.
Abstract: A study has been conducted on the state of cities affected by hostilities. The degree of damage to large cities and small towns in the war zone on the territory of Ukraine has been determined. An assessment of the cost of reconstruction of Ukrainian cities and the availability of state programs and mechanisms that will regulate such processes has b...
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Research Article
Evaluation of a Four-Layer Textile-Based Filtration System for Wastewater Treatment
Md Rafiur Rahman*,
Md Rofiul Islam Rofi,
Md Mohiuddin Mamun,
Gonojit Paul,
Al-Rafi Islam,
Iqbal Hossain Imon,
Nadim Hasan,
Hussain Muhammad Abdullah,
Shariful Haque Sammo,
Kazi Naeem Hossain,
Sadman Sakib,
Syed Md. Sanjid Alahi Alif,
Shekh Nazia Islam Tamme,
Fatema Marzia Pramanik,
Tahia Rabbee
Issue:
Volume 9, Issue 1, March 2025
Pages:
36-42
Received:
9 February 2025
Accepted:
17 March 2025
Published:
31 March 2025
DOI:
10.11648/j.ajese.20250901.14
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Abstract: The investigation of alternate filtering materials has been prompted by the growing need for affordable and efficient wastewater treatment technologies. The effectiveness of a four-layer textile filtering system for wastewater treatment without the incorporation of a sequencing batch reactor (SBR) is examined in this work. The capacity of several textile materials to eliminate chemical oxygen demand (COD) and biochemical oxygen demand (BOD) was evaluated. This study aimed to determine the efficiency of textile filtration in reducing organic pollutants and assess its potential as a sustainable wastewater treatment solution. The findings show that although the filter unit significantly reduced the levels of pollutants, the removal efficiencies were somewhat lower than those of filtration systems with SBR integration. However, the system demonstrated consistent performance over time, suggesting that textile filtration can be a viable option for long-term wastewater treatment. The use of activated carbon-coated textiles further improved pollutant removal, particularly for COD reduction, indicating the potential for material optimization. According to the results, textile-based filtration could be a good substitute for decentralized wastewater treatment, especially in places without sophisticated treatment facilities. This approach is particularly beneficial in rural and peri-urban areas where conventional wastewater treatment plants are not feasible due to high installation and operational costs. Additionally, the modular nature of the textile filtration system allows for scalability, making it adaptable for varying wastewater loads. Future research should focus on optimizing textile material composition, increasing retention time, and integrating additional treatment stages such as adsorption and biological processes to enhance efficiency. Overall, this study highlights the potential of textile-based filtration as an affordable and effective wastewater treatment alternative. With further improvements and proper implementation, this method could contribute significantly to sustainable water management and environmental protection.
Abstract: The investigation of alternate filtering materials has been prompted by the growing need for affordable and efficient wastewater treatment technologies. The effectiveness of a four-layer textile filtering system for wastewater treatment without the incorporation of a sequencing batch reactor (SBR) is examined in this work. The capacity of several t...
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