An environmentally friendly solid waste disposal system for Developing countries | |
| Author | Ranaweera, R. M. R. P. |
| Call Number | AIT Thesis no.WM-99-22 |
| Subject(s) | Refuse and refuse disposal--Developing countries Refuse and refuse disposal--Environmental aspects |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Final disposal of solid waste has become a major environmental issue in developing countries. Sanitary landfilling is considered as a suitable solid waste disposal system. Mechanical biological pretreatment (MBP) of Municipal solid waste (MSW) could effectively be used to reduce landfill emissions. In this study the emissions from a landfill are defined as both liquid phase leachate and landfill gases. A general study of MBP was carried out. Gas formation potential, respiration activity and chemical analysis of pretreated waste were carried out to determine the effectiveness of MBP of waste in reducing landfill emissions. Applicability of MBP of MSW as a method to reduce landfill emissions in developing countries was investigated. Integration of MBP to solid waste management systems in developing countries was discussed taking existing situations of solid waste management, climate condition, and cost constraints into account. Finally, an attempt has been made to decide most suitable MBP process technology for waste that are being landfilled in Phitsanulok, Thailand. By carrying out simple composting at the landfill site it is possible to reduce waste content going into landfill by more than 50% mainly due to high putrescible content. It was found out that waste composition and cost constraints are the most influencing parameters in deciding suitable process technology. By MBP of MSW it is possible to reduce landfill emissions and amount of waste going into landfill. However applicability mainly depend on economy of the treatment system. |
| Year | 2000 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Traenkler, Josef |
| Examination Committee(s) | Gupta, Ashim Das;Visvanathan, C. |
| Scholarship Donor(s) | DAAD |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2000 |