| Author | Romchat Rattanaoudom |
| Call Number | AIT Thesis no.EV-05-22 |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | The dumpsite method is MSW management that is widely used in Asian countries. Due to many unsanitary features cause contamination in surrounding environment via surface water, groundwater and infiltration of leachate, then cause severe effect to resident. In addition, land cost for dumping waste is increased rapidly comparing with the past. Some solutions should be undertaken to solve these problems. This study aimed to determine level of hazardousness of heavy metals contained in MSW from this old dumpsite by using TCLP method to compare with TCLP regulatory level. The lab-scale lysimeter set up was conducted to determine the level of heavy metals contained in leachate at simulated dry season, rainy season and saturated condition with different pH loading such as pH=7, pH=5.5 and pH=3. The contamination in surrounding environment was investigated also. Moreover, this study investigated a potential to reuse some kinds of mined waste as compost materials, soil daily cover and fuel. It was found that the solid wastes from this old dumpsite was not hazardous wastes based on level of heavy metals contained, even the Cr and Ni concentrations in few samples were near to standards. The results of various condition affecting leachability of heavy metals in lab-scale lysimeter revealed that almost heavy metals had highest concentration at dry period excepting Hg had highest concentration at saturated condition and Cd at rainy season. And effect of pH in leachability of solid waste was not noticed obviously. The concentrations of heavy metal in leachate from dumpsite and nearby surface water were higher than Thai effluent standard and surface water standard, respectively. The heavy metal concentrations in soil samples were lower than Thai soil standard, however, their values are higher than reference point. Moreover, trends of contamination in surface water and soil are high in areas nearer to dumpsite. For investigation feasibility to reuse wastes, mined wastes were not good compost materials or agriculture soil because low amounts of some nutrients and high concentration of heavy metal 1 were exist. However, the other applications not related with agriculture were available. The reusing as soil daily cover was available but need some modified design to reduce excess infiltration. In addition, the calorific value of almost waste kinds were high excepting organic wastes. |
| Year | 2005 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Preeda Parkpian;Visvanathan, C.; |
| Examination Committee(s) | Jutamad Satayavivad ; |
| Scholarship Donor(s) | Royal Thai Government;Chulabhorn Research
Institute;Mahidol University;Asian Institute
of Technology; |
| Degree | Thesis (M. Eng.) -- Asian Insitute of Technology, 2005 |