Feasibility study of solid and hazardous wastes destruction through co-processing in cement kilns | |
| Author | Narasak Chotchamlong |
| Call Number | AIT Thesis no.EV-08-21 |
| Subject(s) | Cement kilns Hazardous wastes |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Abstract | Thailand has currently about 150 tons of PCBs oils containing in transformers and capacitors. This study aimed to find out the feasibility study of using co-processing in cement kilns as destruction technology for solid and hazardous wastes such as the stockpile PCBs oil. From limited inventory surveys conducted during September 2007 - January 2008 there were about 22 tons of stockpile PCBs oils contained in decommissioned transformers with an average PCBs concentration of 53,400 ppm. Destruction technologies which have potential for destroying these stockpile PCBs oils in Thailand are high temperature incineration (HTI) and co-processing in cement kilns. The comparative analysis of both destruction technologies, conducted by using Multi-Criteria Decision Analysis model, the results showed co-processing is a better option than HTI in terms of environmental and economical criteria such as energy recovery, dioxin emission and investment criteria. The environmental impact analysis of HTI and co-processing for destruction of Bangkok solid wastes case study at various scenarios showed that co-processing of all Bangkok solid wastes (100%) in cement kilns and HTI would emit CO₂ approximately 60 and 740 kg CO₂/t waste, respectively. For the scenarios where co-processing and HTI are combined, the amounts of CO₂ emission were found to be increase with increasing amounts of wastes destroyed by HTI. With respect to Thailand's situation, co-processing of the stockpile PCBs oils in cement kilns appears to be promising alternative, but social consideration needs to be concerned and the informing with participation of the concerned regulatory agencies and stakeholders need to be conducted, including options for properly disposing, cleaning, and reusing of PCBs contaminated transformer containers. |
| Year | 2008 |
| 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) | Chongrak Polprasert; |
| Examination Committee(s) | Nguyen, Thi Kim Oanh ;Karstens, Kare Helge; |
| Scholarship Donor(s) | Thailand (HM King); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2008 |