Integrated Scheduled Waste Management System in Kuala Lumpur Using Expert System

Over the past decade, Malaysia has enjoyed tremendous growth in its economy. This has brought about a population growth along with a great influx of foreign workforce to cities. This resulted in an increase in the amount of waste scheduled generated. Furthermore, scheduled waste management has long been a problem area for local authorities in Kuala Lumpur. Continued illegal dumping by waste generators is being practiced at large scale due to lack of proper guidance and awareness. This report reviewed and discussed about service provided for scheduled waste management by an authority and international scenario of scheduled waste management. An expert system was developed to integrate scheduled waste management in Kuala Lumpur. The knowledge base was acquired through journals, books, magazines, annual report, and web sites. An object oriented expert system shell, Microsoft Visual Basic 2005 Express Edition was used as the building tools for the prototype development. The overall development of this project has been carried out in several phases which are problem identification, problem statement and literature review, identification of domain experts, prototype development, knowledge acquisition, knowledge representation and prototype development. Scheduled waste expert system is developed based on five types of scheduled waste management which are label requirements, packaging requirements, impact of scheduled wastes, recycling of scheduled wastes, and recommendations. Besides, it contains several sub modules by which the user can obtain a comprehensive background of the domain. The output is to support effective integrated scheduled waste management

Analyzing the Contribution of Green Buildings Towards Circular Economy in Sri Lanka

The circular economy concept is crucial in moving forward with sustainable development in any country. It has been identified that implementing CE (Circular Economy) in the built environment has various benefits towards the environment, society as well as the economy. Although this approach has various benefits, its implementation in Sri Lanka is still at a premature stage. Green rating systems are used to qualitatively assess the building’s performance regarding sustainability aspects of the built environment. It remains unclear whether green rating systems in Sri Lanka provide an appropriate guide towards implementing the CE concept. Hence, this paper aims to analyze the contribution provided by green ratings in Sri Lanka towards the implementation of CE. Two pilot case studies and semi-structured interviews were carried out among industry experts who have hands-on experience in green rating systems and work experience in green building projects. Findings indicate that Green building projects have implemented various kinds of sustainable features to obtain a rating. Nevertheless, the practice of these features are not adequately reflecting the implementation CE concept due to numerous barriers to implement CE in Sri Lankan context. The study concludes that in Sri Lanka, the green rating system does not adequately contribute towards the implementation of CE

Municipal Soild Waste Management in Sri Lanka. A study of municipal solid waste management in Dehiwala-Mt. Lavinia Municipal Council & Boralesgamuwa Urban Council of Sri Lanka

This book by Fernando and De Silva presents the scenario of solid waste in Sri Lanka by going beyond purely technical and managerial discussions. It examines waste management in Sri Lanka also from a historical perspective, particularly through the analysis of waste discourses. It acknowledges that waste is perceived differently by different actors and between historical periods. Fernando and De Silva examine the institutional, socioeconomic and political factors that enable and constrain effective, environmentally friendly and gender-sensitive waste management. Given its broad scope and detailed analysis, we trust that the present book will be useful for government authorities, civil society and grassroots actors, and private parties to improve solid waste management in Sri Lanka and make it more sustainable

Municipal solid waste governance in Sri Lanka: a literature review

This literature review focuses on exploring solid waste management in Sri Lanka in relation to three key thematic areas namely; (1) the institutional architecture of waste governance (2) the waste chain and related socially differentiated labor practices, and (3) accompanying discourses on waste and waste-work in Sri Lanka

Comparison And Optimization Of Ozone – Based Advanced Oxidation Processes In The Treatment Of Stabilized Landfill Leachate

Leachate pollution is one of the main problems in landfilling. Among the most problematic parameters in stabilized leachate are COD, ammonia, and color. The treatment technology that can be used may differ based on the type of leachate produced. Even after treatment, the effluent characteristics are always hard to comply with the discharge standard. Ozonation is one of the chemical processes that can be used in the treatment of landfill leachate. However, its performance when use alone is low; its effectiveness can be improved using advanced oxidants. To date, application of Fenton and persulfate reagents separately to improve ozonation process in one ozone reactor was not well established. The study aimed to evaluate and compare the performance of the three treatment processes, namely ozone, ozone/Fenton and ozone/persulfate in treating stabilized leachate separately at different experimental conditions. A central composite design (CCD) with response surface methodology (RSM) was applied to evaluate the relationships between operating variables. Based on statistical analysis, quadratic models for the four responses (COD, NH3–N, Color, and ozone consumption (OC)) proved to be significant with very low probability values (<0.0001). For the three optimization designs; the predicted results fitted well with the results of the laboratory experiment. This study also investigated the effects of the three treatment processes on the biodegradable and soluble characteristics of stabilized leachate. The biodegradability (BOD5/COD ratio) in stabilized leachate was 0.034, and it’s improved to 0.05, 0.14 and 0.29 by applying O3, O3/fenton and O3/persulfate, respectively

Considerations for choosing appropriate healthcare waste management treatment technologies: a case study from an East Midlands NHS Trust, in England

Through their decision-making processes, organisations can play a key role in addressing global environmental challenges. However, to be effective, these processes need to be based on evidence. This paper aims to evaluate the ‘optimum’ healthcare waste treatment technology, using a National Health Service organisation in the East Midlands region of England, as the case study organisation. Using analytic hierarchy process as the research tool, this research determined that the ‘optimum’ approach was a mix of technologies. However, this result was largely driven by costs considerations. Thus the findings suggest the need for a holistic approach to the decision-making process for the procurement of their healthcare waste management services. The use of analytic hierarchy process generally worked well in informing the decision-making process