scholarly journals Potentiality of Waste-to-Energy Sector Coupling in the MENA Region: Jordan as a Case Study

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2786 ◽  
Author(s):  
Qahtan Thabit ◽  
Abdallah Nassour ◽  
Michael Nelles

Population growth, urbanization, and changes in lifestyle have led to an increase in waste generation quantities. The waste management system in the Middle East and North Africa (MENA) region is still considered an adolescent system, while developed countries have made great progress in this field, including regulation, financing, administration, separation at source, recycling, and converting waste to energy. At the same time, in the MENA region, the best performance of the recycling process is around 7–10% of total waste. Nowadays, many developed countries like Germany are shifting from waste management to material flow systems, which represent the core of a circular economy. Also, it should be stated here that all countries that have a robust and integrated waste management system include waste-to-energy (W-to-E) incineration plants in their solutions for dealing with residual waste, which is still generated after passing through the entire treatment cycle (hierarchy). Therefore, this paper illustrates the potentiality of embedding waste incineration plants in the MENA region, especially in large cities, and addressing the economic and financial issues for the municipalities. Cities in these countries would like to build and operate waste treatment plants; however, municipalities do not have the sustainable investment and operating costs. The solution is to maximize the income from the output, such as energy, recycling materials, etc. In addition, the MENA region is facing another dilemma, which is water scarcity due to climate change, increasing evaporation, and reduction of precipitation. This research illustrates a simulated model for a waste incineration plant in the MENA region. The EBSILON 13.2 software package was used to achieve this process. Furthermore, the simulated plant applies the concept of waste-to-energy-to-water, so that not only is waste converted to energy but, by efficient usage of multi-stage flash (MSF) technology, this system is able to generate 23 MWe of electric power and 8500 m3/day of potable water. A cost analysis was also implemented to calculate the cost of thermal treatment of each ton of municipal solid waste (MSW) during the life span of the plant. It was found that the average cost of treatment over 30 years would be around US$39/ton.

2021 ◽  
pp. 36-41
Author(s):  
Lata Ghanshamnani ◽  
Ambily Adithyan ◽  
Shyamala K. Mani ◽  
Manisha Pradhan

Due to enhanced healthcare needs brought upon by the COVID-19 pandemic, the amount of biomedical waste generated has also increased manifold across the globe. With the world in global crisis due to the recent outbreak of the COVID-19 pandemic, it has put great pressure on the biomedical waste management system in India and around the world. To control the spread of the COVID-19 virus, proper disposal of the waste is essential to reduce any risk of secondary transmission. This paper investigates the situation of biomedical waste management in the city of Thane in Maharashtra due to the onset of COVID-19 and suggests some key recommendations to the policymakers to help handle biomedical waste from possible future pandemics. The study found that there was an 81% increase in the total biomedical waste (BMW) generation in 2020, when compared to 2019 and the yellow category waste from COVID-19 centres was the highest contributor to this waste. It was also found that though there was a slight increase in yellow category waste, the total biomedical waste from non- COVID healthcare facilities (HCFs) was comparable to that of the waste generated in HCFs during 2019, revealing that there was conscious reduction in the usage of single use PPEs at non- COVID HCFs. The city, despite owning a Central Biomedical Waste Treatment Facility (CBWTF), was dependent on another incinerator at the Hazardous Waste Management Treatment facility (HWTF) for treatment of the additional waste generated. Unforeseen situation like these, expose the vulnerability of our existing biomedical waste management system and reinforces the need for investing and improving them for strengthening preparedness in the future. The situation also demands periodic education on importance of source segregation and waste reduction through rational use, disinfection and disposal of PPEs.


2021 ◽  
Vol 24 (1) ◽  
pp. 90-119
Author(s):  
Rosie Syme

An effective waste management system is, and has always been, essential infrastructure, particularly given the potential for waste to adversely impact the surrounding environment. In recent decades, however, there has been growing awareness of the scale, breadth and immediacy of those adverse impacts, and of the unsustainability of the enormous (and increasing) amount of waste society generates. Governments around the world have mobilised and there has been a widespread shift towards policies promoting circular economies, waste minimisation and maximised resource efficiency. Singapore is a case in point; despite having a traditionally high waste output and a waste management system dependent on waste incineration as the primary means of disposal, Singapore has committed to a zero waste future. This article presents a review of domestic waste management policy and law in Singapore. Several gaps in the legal framework are identified and considered against the broader context, leading to the conclusion that there is a material environmental vulnerability in the legal framework that should be redressed in order to entrench environmental protections and to align the law with Singapore's policy ambitions. Notwithstanding this deficiency, it is hard not to be optimistic about the future of domestic waste management in Singapore, as the government has made an ambitious policy commitment and appears to be pursuing it with vigour.


Author(s):  
Mohammed Omar Sahed Chowdhury ◽  
◽  
Ashef Ainan Baksh

Bangladesh is a low-lying riverine country. Unplanned growth of urban population causes audacious generation of solid wastes and strives immense pressure on existing services and environment. At present days, urban solid waste management is considered as most immediate and demanding environmental problems vexing Municipal authorities or urban governments in developing Asian countries like Bangladesh. Cities are now clashing with the serious problems of high amount of waste. The traditional concepts and inferior technologies of collecting waste are becoming incomplete as well as incompetent resulting more than half of the engendered solid wastes remain uncollected, disposed of regionally, forging the environmental view of cities quite murky and disheartening for the future. In waste management system, Germany is a role model for the world and the New German Closed-Cycle management is aiming to curve the waste management into resource management. The main intent of this research study is to categories in the solid wastes, discussing the issues of waste generation, a popular method for solid waste management, gasification schematic and waste-management model for Bangladesh. This study also explains Germany Closed-Cycle Management Act as well as waste treatment facilities, recovery, and disposal rate in Germany. Germany keeps very high-quality to preserve soil, air and water from the emissions integrated with waste storage and treatment.


Author(s):  
Nadia Paramita ◽  
Sari Sekar Ningrum

The Ciliwung River is one of the main rivers flowing in the DKI Jakarta area. Ciliwung has an area of 370.8 km2, with a length of 124.1 km. The Ciliwung River contributes greatly to the communities in three big cities, namely Bogor, Depok and Jakarta as a source of drinking water, a source of raw water and a source of water for irrigation. The condition of household wastewater is currently discharged directly or indirectly into river water bodies. gray water is immediately discharged into the water body without being treated. Blackwater is treated to inadequate septic tanks or discharged directly into water bodies. This condition certainly requires a fast and precise solution and handling. In terms of domestic wastewater management, both gray water and black water, at this time Cililitan village is not included in the area that is accessible to centralized wastewater piping or off-site systems and does not have land that can be used to make a communal system waste treatment so that most of the households still throw away directly into the river or using a septic tank without regular desludging. The purpose of this study is to identify the current waste management conditions in Cililitan Village and provide recommendations for the selection of a sustainable domestic waste management system that is acceptable to the community and safe for the environment.


2019 ◽  
Vol 8 (7) ◽  
Author(s):  
Jan Vincent S Saracanlao ◽  
Lorejo Juliet E ◽  
Evangelista Linden L ◽  
Lim Love C ◽  
Naelga Sofia C

Framed by Total Quality Management Principles derived from the ISO 9001:2000 standard, The Total Quality Zero Waste Management System is macro research managing (4) four micro researches using Principle of Total Quality Management. The entire researches sought to address the solid waste in Misamis Oriental General Comprehensive High School. The system begins with (Lorejo et al) entitled Micro-Segregation System: Redesigning Traditional Garbage Bins for Specificity, Purpose and Functionality. It aimed to restructure the traditional paradigm of waste segregation bins and its design. The next phase was on micro waste processing system. Each bins and type of waste were distributed to different solid waste processing facilities. The paper type (paper and paper cups) is framed by the research of (Permites et al) entitled Paper Type Waste Treatment Facility: Processing Paper Type Waste in MOGCHS to other Potential Outcomes. Similar to this is the study of (Lim et al) Leaves and Perishable Waste Treatment Facility: Processing leaves and Perishable Waste in MOGCHS for Composting Organic Fertilizer. Another researches from (Ranalan et al) entitled Endothermic Construction material made from recycled plastic bottles fused with ethylene Glycol. These sub researches are managed by this main research Total Quality Zero Waste Management System. The study sought to answer the following questions 1.What is the evaluation of degree of application of each Total Quality Management Principles derived from the ISO 9001:2000 standard in the project management of the Total Quality Zero Waste Management System 2. What is the evaluation of the sub researchers toward the head researchers application and use of Total Quality Management Principles derived from the ISO 9001:2000 standard. The study found out that the principles in Total Quality Management was an effective management model as used in project management and delivery.  Specifically, the researches met and tried to go beyond the standard set by Local Ordinance No. 13130-2016 is in line with Section 166 of Republic Act 9003, the Ecological Solid Waste Management Act of 2000.  Leadership demands were carried out through weekly meeting. During these times purpose, direction and other content that needs to be communicated were delivered. Students and teachers were involved in the project. They were also oriented on the project and how they can participate and make contribution for the success of the project.  PDCA (PLAN, DO, CHECK and ACT) tool kit was used in the study. Total Quality Zero Waste Management System follows a system approach. Each different research is a part of the whole which is this research. Each research is i ndependent from other research, however there is a consequential connection between each research to the other. The results of the research of each researcher influence the other research. Total Quality Zero Waste Management System has a bottom up feedback/evaluation mechanism. This research and each researches made use of statistical procedure to evaluate the implementation of the program, the innovation and the facility. Descriptive statistics, percentage, frequency and frequency distribution, mean and standard deviation were used in the study. All of these statistical results were used to evaluate and present the project, and the processes within the project. The statistical results were also used as basis for future improvements. In some cases, immediate but minor augmentation and corrective procedure of the facility, program and processes within the project to ensure quality implementation and delivery of the system. Communicating a shared value of quality to the suppliers of the facilities, the users of the facilities and the contributors of the project was one of the most challenging endeavor that this research encountered. It was already a challenge imparting and owning that shared value of quality amongst researchers, much more sharing, communicating, imparting and owning that value to others.  It is recommended to use Total Quality Management Principles as framework for the development and delivery of a project. It is recommended that each institution, private or government, local or national to adopt and implement the Total Quality Zero Waste Management System with its corresponding facility.


Author(s):  
Maria-Chrysovalantou Emmanouil ◽  
Emmanouil Stiakakis ◽  
Maria Vlachopoulou ◽  
Vasiliki Manthou

The generation and accumulation of waste of electrical and electronic equipment (WEEE) is growing fast, becoming one of the most complex waste streams the modern world faces. The effective and efficient management of this waste stream raises the interest of the global scientific and business community. The purpose of this paper is to analyze the flow in an e-waste management system, present the main processes included and detect the information procedures that affect the operation of the system. For its research, first a detailed literature review is presented and second the critical information flows are analyzed. The findings indicate five critical informational procedures of managerial concern: (a) defining the infrastructure, technological systems, and investments that are needed to optimize an e-waste management network, (b) minimizing the total cost of the e-waste management system, (c) estimating ICT waste quantities as precisely as possible, (d) selecting the appropriate strategy for ICT waste treatment, and (e) redesigning the IT and telecommunication products in order to improve their recycling characteristics. The study concludes with the formulation and presentation of a material and information flow diagram of ICT waste management system.


2017 ◽  
Vol 13 (1) ◽  
Author(s):  
Dragana Nešković Markić ◽  
Hristina Stevanović Čarapina ◽  
Ljiljana Tojanović Bjelić

The waste is a product of everyday human activities, and we are faced with large amounts of waste daily. Inadequate method of waste treatment effects are numerous: pollution of the environment and hazards to human health, the loss of useful components from waste, or the exploitation and consumption of natural resources. In the XXI century the sustainable management of municipal waste will become essential in all stages, from planning to construction, handling, recycling and final decomposition. Range of new and existing technologies for waste treatment and waste management strategies require the maintenance of environmental quality at the moment, but also the fulfillment of sustainability in the future.Integrated waste management should meet certain priorities in line with the waste hierarchy, such as requirements for recycling waste, to increase the use of renewable energy in order to looking for more socially acceptable options, and to preserve biodiversity and natural ecosystems simultaneously. Achieving these goals is possible only if all technical and non-technical aspects of solid waste management system are analyzed as a whole, because they are interrelated, and development in one area often influences the practice or activity in another area.Various analytical tools and methods are used to help in decision making in waste management systems. Analytical methods used in the waste management system can be classified into two groups: engineering models and models of assessment system.


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