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Municipal waste management systems for domestic use
2017
Jouhara, H. | Czajczyńska, D. | Ghazal, H. | Krzyżyńska, R. | Anguilano, L. | Reynolds, A.J. | Spencer, N.
Every year, the average citizen of a developed country produces about half a tonne of waste, thus waste management is an essential industry. Old waste management systems based on the collection of mixed/sorted waste and transporting it a long way to disposal sites has a significant negative impact on the environment and humans. This paper will review the available waste management systems for households. Biological methods (such as composting or anaerobic digestion) and physicochemical methods (such as burning or pyrolysis) of waste utilization will be considered from the householder’s point of view. The most important features of each system will be discussed and compared. Municipal waste management systems for domestic use could eliminate or significantly reduce the stage of waste collection and transportation. Additionally, they should not require special infrastructure and at the same time should allow garbage to be changed into safe products or energy sources with no harmful emissions. The aim of the work is to identify the best available waste disposal systems for domestic use.
Afficher plus [+] Moins [-]E-waste Management and Refurbishment Prediction (EMARP) Model for Refurbishment Industries
2017
Resmi, N.G. | Fasila, K.A.
This paper proposes a novel algorithm for establishing a standard methodology to manage and refurbish e-waste called E-waste Management And Refurbishment Prediction (EMARP), which can be adapted by refurbishing industries in order to improve their performance. Waste management, particularly, e-waste management is a serious issue nowadays. Computerization has been into waste management in different ways. Much of the computerization has happened in planning the waste collection, recycling and disposal process and also managing documents and reports related to waste management. This paper proposes a computerized model to make predictions for e-waste refurbishment. All possibilities for reusing the common components among the collected e-waste samples are predicted, thus minimizing the wastage. Simulation of the model has been done to analyse the accuracy in the predictions made by the system. The model can be scaled to accommodate the real-world scenario.
Afficher plus [+] Moins [-]Waste Management Pinch Analysis (WAMPA): Application of Pinch Analysis for greenhouse gas (GHG) emission reduction in municipal solid waste management
2017
Ho, Wai Shin | Hashim, Haslenda | Lim, Jeng Shiun | Lee, Chew Tin | Sam, Kah Chiin | Tan, Sie Ting
Improper waste management happened in most of the developing country where inadequate disposal of waste in landfill is commonly practiced. Apart from disposal, MSW can turn into valuable product through recycling, energy recovery, and biological recovery action as suggested in the hierarchy of waste management. This study presents a method known as Waste Management Pinch Analysis (WAMPA) to examine the implication of a dual-objective – landfill and GHG emission reduction target in sustainable waste management. WAMPA is capable to identify the capacity of each waste processing strategy through graphical representation. A general methodology of WAMPA is presented through a demonstration of a SWM case followed by a detailed representation of WAMPA for five waste types. Application of the WAMPA is then applied on a case study for sustainable waste management planning from year 2015 to 2035. Three waste management strategies are incorporated into the case study – landfill, Waste-to-Energy (WtE), and reduce, reuse, and recycle (3R). The results show a 13.5% of total GHG emission reduction and 54.6% of total reduction of landfill are achieved. The major contributor of GHG emission which are from food waste (landfill emission) and plastic (WtE emission) is reduced.
Afficher plus [+] Moins [-]Hospital waste management rules 2005 and current practices in selected hospitals of Peshawar Khyber Pakhtunkhwa, Pakistan
2017
Dawar, Abdul Basit Khan
M-IES | Within the scope of the study, the current situation and management practices regarding healthcare waste such as waste generation, segregation, on-site and off side collection and transportation, storage, and disposal were examined. Moreover, this study analysed the implementation status of hospital waste management (HWM) rules 2005 in both public and private hospitals also discussed the overall causes of malpractices of waste management as well as factors contributing to better healthcare waste management particularly in the private hospitals of Peshawar, Khyber Pakhtunkhwa. Qualitative research method was used for this study. In total, forty-four interviews were conducted in selected public and private hospitals equally, of which thirty-seven were semi-structured interviews and remaining seven were informal interviews. The study found the improper applications, inconsistencies, and deficiencies in the whole system of the waste management. The limited knowledge of hospital waste management rules 2005 particularly among nurses, paramedics, waste handling staff and administration in public hospitals was a serious concern. Lack of proper and simple monitoring and supervision system has further exacerbated the situation. Similarly, the limited scope and complicated nature of the regulations in hospital waste management rules 2005 makes the compliance challenging. Based on the evaluation of hospital waste management (HWM) rules 2005 and comparison of the current practices in both public and private sectors, changes and amendments in the healthcare waste management legislation and the reasons for the gaps between the public and private sectors were identified. These include the revision of legislation section No.4 to section No.14 and similarly section No.23 and section No.24 to make the rules practically implementable in both public and private sectors. The findings should be a good basis for making improvements in the management of healthcare waste in Peshawar as well as in Khyber Pakhtunkhwa.
Afficher plus [+] Moins [-]Towards the effective plastic waste management in Bangladesh: a review
2017
Mourshed, Monjur | Masud, Mahadi Hasan | Rashid, Fazlur | Joardder, Mohammad Uzzal Hossain
The plastic-derived product, nowadays, becomes an indispensable commodity for different purposes. A huge amount of used plastic causes environmental hazards that turn in danger for marine life, reduces the fertility of soil, and contamination of ground water. Management of this enormous plastic waste is challenging in particular for developing countries like Bangladesh. Lack of facilities, infrastructure development, and insufficient budget for waste management are some of the prime causes of improper plastic management in Bangladesh. In this study, the route of plastic waste production and current plastic waste management system in Bangladesh have been reviewed extensively. It emerges that no technical and improved methods are adapted in the plastic management system. A set of the sustainable plastic management system has been proposed along with the challenges that would emerge during the implementation these strategies. Successful execution of the proposed systems would enhance the quality of plastic waste management in Bangladesh and offers enormous energy from waste.
Afficher plus [+] Moins [-]Municipal solid waste management planning for Xiamen City, China: a stochastic fractional inventory-theory-based approach
2017
Chen, Xiujuan | Huang, Guohe | Zhao, Shan | Cheng, Guanhui | Wu, Yinghui | Zhu, Hua
In this study, a stochastic fractional inventory-theory-based waste management planning (SFIWP) model was developed and applied for supporting long-term planning of the municipal solid waste (MSW) management in Xiamen City, the special economic zone of Fujian Province, China. In the SFIWP model, the techniques of inventory model, stochastic linear fractional programming, and mixed-integer linear programming were integrated in a framework. Issues of waste inventory in MSW management system were solved, and the system efficiency was maximized through considering maximum net-diverted wastes under various constraint-violation risks. Decision alternatives for waste allocation and capacity expansion were also provided for MSW management planning in Xiamen. The obtained results showed that about 4.24 × 10⁶ t of waste would be diverted from landfills when p ᵢ is 0.01, which accounted for 93% of waste in Xiamen City, and the waste diversion per unit of cost would be 26.327 × 10³ t per $10⁶. The capacities of MSW management facilities including incinerators, composting facility, and landfills would be expanded due to increasing waste generation rate.
Afficher plus [+] Moins [-]The Relationship between Waste Management Expenditure and Waste Reduction Targets on Selected JSE Companies
2017
Maleka, Thabo Gerald | Nyirenda, Gibson | Fakoya, Michael Bamidele
Waste generation and waste management are critical environmental issues faced by countries all over the world. Furthermore, there are greater environmental, economic, and social demands on firms to reduce the environmental impacts due to environmental problems brought about by their operating activities. There is a current debate as to the financial implications of waste management expenditure on waste reduction targets. This study examines the relationship between waste management expenditure on waste reduction targets, and the impact of waste reduction targets on firms’ profitability. This study used the quantitative method that utilizes the multiple regressions method to analyses data from selected South African Johannesburg Stock Exchange’s (JSE) Socially Responsible Index (SRI) listed manufacturing and mining firms for ten years (2007–2016). The study tests if there is a relationship between waste management expenditure and waste reduction targets, as well as the impact of waste reduction targets on firms’ profitability. Results show that waste reduction targets have a positive, but insignificant, correlation on the profitability of firms, and also indicate that there is a relationship between waste management expenditure and waste reduction targets. The study recommends that firms should focus more on minimizing waste generation to reduce costs.
Afficher plus [+] Moins [-]Waste Management in Industrial Construction: Investigating Contributions from Industrial Ecology
2017
Larissa Freitas | Alessandra Magrini
The need for effective construction waste management is growing in importance, due to the increasing generation of construction waste and to its adverse impacts on the environment. However, despite the numerous studies on construction waste management, recovery of construction waste through Industrial Symbiosis and the adoption of other inter-firm practices, comprised within Industrial Ecology field of study, have not been fully explored. The present research aims to investigate Industrial Ecology contributions to waste management in industrial construction. The waste management strategies adopted in two industrial construction projects in Brazil are analyzed. The main waste streams generated are identified, recycling and landfilling diversion rates are presented and waste recovery through Industrial Symbiosis is discussed. A SWOT analysis was carried out. Results demonstrate that 9% of the waste produced in one of the projects was recovered through Industrial Symbiosis, while in the other project, waste recovery through Industrial Symbiosis achieved the rate of 30%. These data reveal Industrial Symbiosis’ potential to reduce landfilling of industrial construction wastes, contributing to waste recovery in construction. In addition, results show that industrial construction projects can benefit from the following synergies common in Industrial Ecology place-based approaches: centralized waste management service, shared waste management infrastructure and administrative simplification.
Afficher plus [+] Moins [-]Waste Management in Industrial Construction: Investigating Contributions from Industrial Ecology
2017
Freitas, Larissa A. R. U. | Magrini, Alessandra
The need for effective construction waste management is growing in importance, due to the increasing generation of construction waste and to its adverse impacts on the environment. However, despite the numerous studies on construction waste management, recovery of construction waste through Industrial Symbiosis and the adoption of other inter-firm practices, comprised within Industrial Ecology field of study, have not been fully explored. The present research aims to investigate Industrial Ecology contributions to waste management in industrial construction. The waste management strategies adopted in two industrial construction projects in Brazil are analyzed. The main waste streams generated are identified, recycling and landfilling diversion rates are presented and waste recovery through Industrial Symbiosis is discussed. A SWOT analysis was carried out. Results demonstrate that 9% of the waste produced in one of the projects was recovered through Industrial Symbiosis, while in the other project, waste recovery through Industrial Symbiosis achieved the rate of 30%. These data reveal Industrial Symbiosis’ potential to reduce landfilling of industrial construction wastes, contributing to waste recovery in construction. In addition, results show that industrial construction projects can benefit from the following synergies common in Industrial Ecology place-based approaches: centralized waste management service, shared waste management infrastructure and administrative simplification.
Afficher plus [+] Moins [-]The Relationship between Waste Management Expenditure and Waste Reduction Targets on Selected JSE Companies
2017
Thabo Maleka | Gibson Nyirenda | Michael Fakoya
Waste generation and waste management are critical environmental issues faced by countries all over the world. Furthermore, there are greater environmental, economic, and social demands on firms to reduce the environmental impacts due to environmental problems brought about by their operating activities. There is a current debate as to the financial implications of waste management expenditure on waste reduction targets. This study examines the relationship between waste management expenditure on waste reduction targets, and the impact of waste reduction targets on firms’ profitability. This study used the quantitative method that utilizes the multiple regressions method to analyses data from selected South African Johannesburg Stock Exchange’s (JSE) Socially Responsible Index (SRI) listed manufacturing and mining firms for ten years (2007–2016). The study tests if there is a relationship between waste management expenditure and waste reduction targets, as well as the impact of waste reduction targets on firms’ profitability. Results show that waste reduction targets have a positive, but insignificant, correlation on the profitability of firms, and also indicate that there is a relationship between waste management expenditure and waste reduction targets. The study recommends that firms should focus more on minimizing waste generation to reduce costs.
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