scholarly journals Malaysia Moving Towards a Sustainability Municipal Waste Management

2021 ◽  
Vol 1 (1) ◽  
pp. 26-40
Author(s):  
Yien Yu Tang ◽  
Kuok Ho Daniel Tang ◽  
Amit Kumar Maharjan ◽  
Azrina Abdul Aziz ◽  
Seng Bunrith

The elevation of waste generation subsequent to population growth has become a severe environmental topic in Malaysia. Since most of the waste is being dumped into a landfill, the open dumpsite, or unsanitary landfills which are not constructed with proper engineering plan, severe impacts on the environment result. The energy demand in Malaysia increased with the growing population, but reliance on fossil fuels to generate electricity has created another greenhouse gas contributor. Alternatively, waste-to-energy technology solves the problem of increasing waste by converting the waste to a renewable energy source. Malaysia has moved towards landfill gas recovery system and incineration for waste energy recovery. The recovery system and refuse-derived fuel plant achieved expectation; however, the incineration plants have failed due to the opposition of the public, lack of funding and technician expertise, and other technical issues. The solid waste management practices lacking separation and recycling sources, become an obstacle for development. The government puts effort into solving the current issue by promoting recycling in the public, enforcing the legislation, and approaching new technologies for better solid waste management practice in the future. This paper aims to discuss the application of energy recovery from municipal solid waste in Malaysia.

2020 ◽  
Vol 7 (2) ◽  
pp. 70-77
Author(s):  
R. Geetha ◽  
S. Rajalakshmi

The solid waste management is not only necessary for maintaining the hygienic environment but in reducing the probable health hazards. The current study deals with the problems faced by the public due to improper waste management and the behaviour in waste disposal. The data used in our study is both primary and the secondary data. Waste cannot be simply thrown away anymore, now it must be managed. Many materials thrown away could be saved by simple things like reusing glass, the municipal landfill could be reduced by almost 10 percent and there are still many advantages to waste management. Today, more people are in favour of companies who invest in “green products”. As a result, companies have removed phosphates, bleaches, and have made their paper products out of recycled papers. The objective of writing this paper is to study the current practices related to the various waste management initiatives taken in India for human wellbeing. The other purpose is to provide some suggestions and recommendations to improve the waste management practices in Indian towns. Int. J. Soc. Sc. Manage. Vol. 7, Issue-2: 70-77  


Author(s):  
Alexander E. Helou ◽  
Kim Tran ◽  
Cecile Buncio

Thermal technologies, such as gasification, pyrolysis, waste-to-energy (WTE), and advanced thermal recycling (second generation WTE with the most advanced air emission control system), can be employed to recover energy from municipal solid waste (MSW), reduce the volume of material to be landfilled, and lessen the potential emission of methane. Methane is a potent greenhouse gas and a major component of landfill gas. All operating WTE facilities in the United States have been subjected to strict environmental regulations since the passage of the Clean Air Act Amendments in 1990. As a result, U.S. WTE facilities now meet or exceed stringent local air quality standards, including those imposed by the South Coast Air Quality Management District (SCAQMD) in Southern California. The United States Environmental Protection Agency (EPA) recognizes the important role of WTE in the integrated solid waste management and ranks combustion higher than landfilling in its solid waste management hierarchy. In addition to upstream source reduction and recycling, downstream thermal treatment of the residual MSW (conducted in controlled environment) can effectively recover energy and further reduce waste volume. Despite all the advantages and environmental benefits of thermal technologies, its utilization for treating MSW in California still faces many challenges. These include negative public perceptions, economical disadvantages, local marketability of by-products, and disposal options for residuals. This paper discusses the need to include energy recovery in the integrated MSW management in California and the challenges encountered by many local jurisdictions.


Technologies ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 48
Author(s):  
Eshetu Gelan

Solid waste is one of the social and environmental challenges that urban areas are facing. The study assesses the state of solid waste in Addis Ababa during 2016–2020 to provide implications for achieving green architecture concepts through better management of solid waste and its economic contribution. The study uses secondary and primary data. Quantitative and qualitative data are analyzed through descriptive statistics and context analysis, respectively. The result reveals that most solid waste is generated from households, followed by commercial centers, street sweeping, industries/factories, hotels, and hospitals, respectively. From 2016 to 2020, an average of 80.28% of solid waste is collected, whereas 19.72% of the waste is not collected. There are little or no efforts made to segregate solid waste at the source. The generated waste is disposed of in the Reppi open landfill. Together with Ethiopian electric power (EEP) and the City Government of Addis Ababa, waste has been converted to energy since 2019. The study suggests minimizing waste from its source by reducing generation, composting, reusing, recycling, waste-to-energy strategy, and well-designed buildings to achieve the concept of green architecture in Addis Ababa through better solid waste management.


Author(s):  
H. A. Salami ◽  
J. O. Adegite ◽  
T. T. Bademosi ◽  
S. O. Lawal ◽  
O. O. Olutayo ◽  
...  

The management of MSW is a major concern in several cities of developing countries due to its public health and environmental sustainability implications. This paper thus presents an overview of the current solid waste management practices and problems in some selected states in Nigeria. In addition to the comprehensive review of MSW generation, its characterization, collection, and treatment options in the considered states, an attempt was made to evaluate the major waste–to–energy indicators such as calorific values and energy (electricity) recovery potential. The legislations in place at the federal level to maintain healthy environment is also lucidly presented. An estimated electricity recovery potential in the range of 48.31 to 933.69 MW with a total of about 2600MW from six states was established. Evidences from literature suggested that the existing solid waste management system is inefficient due to uncoordinated and properly planned waste management system. This paper concludes that the thermochemical conversion of waste-to-energy into electricity is a feasible option in Nigeria, although this might require the input of additional quantity of fuel to initiate combustion since the lower heating values of the considered MSW fall below the optimum stipulated by World bank.


Author(s):  
Maria Manzoor ◽  
Iram Gul ◽  
Irum Iqrar ◽  
Muhammad Arshad

This chapter covers different aspects of solid waste management (SWM) in Pakistan. Being a developing country, Pakistan is facing serious environmental issue as a result of improper and limited SWM practices. The current status of waste generation is far high than waste management operation working in the country. Detailed information has been provided on account of waste generation per capita, waste composition and types, current status of waste management practices, policy and legislations on solid waste management. Furthermore, particular challenges in local setups for achieving waste management goals have been highlighted. There is urgent need to look into the various options to deal with proper management of solid waste in the country. In this regard, various projects by governmental and private sector have been initiated. Particularly, projects related to waste to energy (WTE) have been planned and operational in certain parts of the country.


2020 ◽  
Vol 12 (19) ◽  
pp. 8221
Author(s):  
Georgios Banias ◽  
Maria Batsioula ◽  
Charisios Achillas ◽  
Sotiris I. Patsios ◽  
Konstantinos N. Kontogiannopoulos ◽  
...  

Municipal Solid Waste (MSW) management has been a major problem of modern cities for many years. Thus, the development of optimal waste management strategies has been a priority for the European Commission, especially in the transition toward a circular economy. In this paper, an analysis of different MSW treatment methods that can be effectively implemented in the Region of Central Macedonia (RCM) is provided, and their comparison from an environmental point of view is performed. The assessment is based on real data indicated in the recently updated Greek National Waste Management Plan, whereas the different scenarios developed include landfilling without energy recovery, landfilling with energy recovery, recycling and secondary materials recovery, mechanical-biological treatment, bio-waste composting and anaerobic digestion with energy recovery, and incineration with energy recovery. The obtained results illustrate that efficient waste streams sorting is of vital importance for the effective implementation of an integrated waste management system toward the sustainable management of MSW.


2021 ◽  
Vol 12 (1) ◽  
pp. 19
Author(s):  
Aftab Ahmed ◽  
Arshad Hussain ◽  
Shehdev Thahrani ◽  
Sultan Ahmed ◽  
Abdul Qadeer Khoso ◽  
...  

The environmental protection agency shows that the solid waste management of Karachi city lies in the underdeveloped category. Organics, paper, plastics, bread, metals, bones, textile and many other components are key in this area. The current methods for disposing of solid waste in cities, land-filling and other schemes are compared. Energy crises and solid waste at this large scale has forced cities to the edges of collapsing. Still, it is feasible to convert this huge problem into a profitable business. With the exception of dumping or burning, waste can be used to produce energy. Through bio-chemical and thermo-chemical processes, almost 0.01% of the total energy demand can be reproduced from the waste mentioned above. There is a need to promote the production of energy from solid waste and the utilization of different wastes in a useful manner. Instead of using ineffective waste management schemes, proper waste management schemes can solve both problems at the same time. A huge amount of revenue can be generated from Karachi solid waste, but all this depends upon awareness and suitable technology. The focus of this paper is to emphasize the importance of recycling and energy. The choice of proper methods for treatment, fermentation, anaerobic digestion and the reasons for properly operating all solid waste management bodies are discussed in detail in this study. The Decision support System tool and its importance is also discussed in terms of the field of solid waste choice makers.


2021 ◽  
Vol 13 (1) ◽  
pp. 54-60
Author(s):  
Saumya Singh ◽  
Jeeoot Singh

In India, rate of waste generation varies from 0.12-0.60 kg/capita/day. This paper lists established solid waste management practices in India by providing the latest factual data from various reports and surveys being conducted in India in the period 2016 and beyond. This paper also gives an insight into some of the recent studies that have been in India related to solid waste and waste to energy technologies by describing their study area along with mentioning their critical observations.


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