Municipal Solid Waste Management Practices and Challenges in the Southeastern Coastal Cities of Sri Lanka

Saja, A. M. Aslam; Zimar, A.M.Z.; Junaideen, S. M.

doi:10.3390/su13084556

Cited by 30 publications

(18 citation statements)

References 27 publications

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“…Mean waste collection efficiency in municipal councils in Sri Lanka is approximately 50% and over 85% of waste ends up in open dumping sites or converted landfills into open dumps [ 57 ]. Moreover, an open waste dump collapsed due to exceeded loading capacity in 2016 [ 2 ].…”

Section: Resultsmentioning

confidence: 99%

Application of Life Cycle Framework for Municipal Solid Waste Management: a Circular Economy Perspective from Developing Countries

Peiris

Dayarathne

2022

Circ.Econ.Sust.

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Municipal Solid Waste (MSW) management has been a long-standing problem for many cities in developing countries. Urbanization, population growth, and excessive demand for resources caused significant waste related environmental and socio-economic problems in cities. Integration of policy decisions with actionable targets and management of economic and environmental extremes were common challenges to achieving sustainable waste management strategy. Circular economy is a concept that has been evolved with sustainable resource management perspective adopted in this study to support scientific decision-making process for urban planners and policymakers. Life Cycle Assessment (LCA) is a framework to assess the environmental impacts of waste life cycle ranging from waste generation, transportation, treatment, and end disposal. This study used the LCA framework to evaluate the impact of MSW management of a selected local authority in Colombo, Sri Lanka, to identify the environmental impact of four (04) proposed scenarios in comparison with the Business-As-Usual (BAU) scenario. Environmental impacts were calculated using global warming potential in terms of greenhouse gas emissions and short-lived climate pollutants. The results revealed that management of MSW within the local authority boundary by integrating recycling, incineration, and sanitary landfill (3:8:1 ratio) offered the highest positive impacts (− 121.84 kg of CO 2 eq./ton) while BAU scenario caused the highest negative impacts (250.97 kg of CO 2 eq./ton) in comparison with selected scenarios. Moreover, incineration, sanitary landfill, recycling, and anaerobic digestion contributed to emission savings and energy generation. LCA framework was used to identify the composition of MSW for suitable technologies as well as to evaluate the efficiency of existing management mechanisms within a local authority. Evaluation was used to understand the holistic picture of multiple management options to support policymakers in the decision-making process. This framework can be used as a benchmarking tool and bridging concept between the waste management policy and local action plans, which is an important step towards achieving a circular economy for developing countries. Supplementary Information The online version contains supplementary material available at 10.1007/s43615-022-00200-x.

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Section: Resultsmentioning

confidence: 99%

Application of Life Cycle Framework for Municipal Solid Waste Management: a Circular Economy Perspective from Developing Countries

Peiris

Dayarathne

2022

Circ.Econ.Sust.

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“…Likewise, composting and the conversion of waste to energy were also observed to be a high priority in the government's effort on waste management. Included in the list of priorities as perceived by the respondents is the need to execute a performance and evaluation system that will assess the impacts of the said system, (Saja, Zimar, & Junaideen, 2021).…”

Section: Resultsmentioning

confidence: 99%

Strategic Zero Waste Management Program of Bacoor Cavite, Philippines: Basis for Healthy Environment Campaign

Martinez

Llonora

Mallillin

2022

EJES

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The concept of zero waste advocates the “no waste” practice across societies, from individuals and households to enterprises and industries. There are prevailing issues and challenges in the current system of waste management in local government. Critics of the “plastic ban policy” assert that no significant change and impact was made from the time the local ordinance was implemented. However, interest groups have claimed that to confront the never-ending problem of waste is to strengthen the current policy through the adoption of zero waste management (ZWM). This system offers an alternative solution and remedy to the non-negotiable impacts of waste materials on the environment and public security. This study is designed to develop a proposal on waste management that will be utilized by the local government of Bacoor City, Cavite. It aims to evaluate the effectiveness of the waste management system as well as its problems and constraints in implementation. With the existing implementation of solid waste management, a strategic zero waste management system is offered to strengthen the government’s effort in dealing with problems concerning waste. This strategic program covers key phases from the assessment of the current system to the implementation and post-evaluation of the project. Furthermore, a community relations approach was also introduced as an action plan in ZW management focusing on the promotion of sustainable development. Included in this study is the employment of 111 resident-homeowners of Bacoor City who were involved in the conduct of survey and interview through the use of structured questionnaire instruments. Findings of this qualitative-quantitative descriptive research show that issues of waste management centers on public awareness and information campaigns on the dynamics of the program and concerns on measures used in the restriction of plastic waste where institutionalized and standardized policies are needed. Furthermore, priority issues reveal that the local government needs to confront and address the different issues on waste management. Respondents have clearly observed that resources are key requirements if a ZW management is to be implemented. The availability of technology, equipment, and material flow is necessary to handle and manage if ever a ZW management is to be introduced in the city. On the other hand, the current system of waste management in Bacoor was observed as very effective. Its effectiveness is seen in the active community involvement and participation in waste management. Article visualizations:<img src="/-counters-/edu_01/0202/a.php" alt="Hit counter" />

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“…In comparison, each Sri Lankan individual generates around 1 to 0.4 kg of waste per day within the country, where an estimated 3500 Mg (MT) of waste is collected per day in Sri Lanka [2]. It is expected to reach an average of more than 1.0 kg/person/day by 2025 [3].…”

Section: Introductionmentioning

confidence: 99%

Morphology of household waste on the example of Sri Lanka and Poland — case study

Perera

Chyc

2023

Sci, Tech. Innov.

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Household waste is a global problem that many countries cannot cope with and deal with difficulty. In many regions of the world, a dynamic increase in the amount of waste generated is observed, which causes significant environmental pollution and excessive use of non-renewable resources. In the case of household waste, important indicators are not only its quantity per person but also its morphology. This study compares the amount of waste generated and its morphology by a household in Sri Lanka (Colombo) and Poland (Tarnów). The presented data comes from 2022, during a time of economic crisis caused initially by the COVID-19 pandemic and then due to the war between Russia and Ukraine. Currently, Sri Lanka is going through one of the greatest economic crises in its history. Poland is currently experiencing high inflation and reduced demand for many consumer goods due to continuous price increases. These events significantly affect the demand for various types of consumer goods and, paradoxically, this may reduce the amount of waste generated. It is important to identify and implement new strategies to recycle or optimize the usage of waste and develop value added products that would, in turn, have a positive impact on the domestic waste awareness. The results of the conducted research indicate a significant share of biodegradable waste in the stream of generated waste, especially in Sri Lanka. The vast majority of generated waste can be recycled, but sorting is required. Comparing the data obtained from this case study, 71% of food waste is generated in Sri Lanka, whereas 22.1% is generated in Poland. This indicates that Poland produces a significant amount of processed food. Moreover, the recorded plastic waste produced by Polish families is twice that of Sri Lanka. Furthermore, both countries indicate a positive trend to generate more waste in the future despite economic challenges faced locally as well as globally. Therefore, it is vital to understand the amount and morphology of waste as well as to implement more efficient and economical strategies to eliminate negative impacts.

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Municipal Solid Waste Management Practices and Challenges in the Southeastern Coastal Cities of Sri Lanka

Cited by 30 publications

References 27 publications

Application of Life Cycle Framework for Municipal Solid Waste Management: a Circular Economy Perspective from Developing Countries

Application of Life Cycle Framework for Municipal Solid Waste Management: a Circular Economy Perspective from Developing Countries

Strategic Zero Waste Management Program of Bacoor Cavite, Philippines: Basis for Healthy Environment Campaign

Morphology of household waste on the example of Sri Lanka and Poland — case study

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