| Author | Niramon Thanuddhanusilp |
| Call Number | AIT Thesis no. EV-95-26 |
| Subject(s) | Sanitary landfills--Leaching
|
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science. |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. EV-95-26 |
| Abstract | Treatability ofleachate from the Lad-Krabang disposal site by using sequencing batch reactor (SBR) and effective microorganisms (EM) was investigated in this study. Raw leachate was treated with alum in order to reduce COD and heavy metals before the SBR and effective microorganism treatment. Leachate was pretreated with an alum dose of 4 g/L at pH 5.5, the optimum condition, which yielded 53 .37 % COD removal. This was less effective for heavy metal removal. The SBR system have five steps in common that are canied out in sequence, as follows : (1) fill, (2) react, (3) settle, (4) draw and (5) idle. Treatment of the pretreated leachate yielded COD and BOD5 removal of only 34.1 % and 80.3% respectively. This may be due to refractory nature of the organic present in the leachate. Dilution of the pretreated leachate with AIT wastewater, named as combined wastewater, was done to reduce the concentration of toxic substances and refractory matter. The COD and BOD5 removal efficiencies were found to be 78.0 % and 84.0 % respectively. EM was used as seed for treating the pretreated leachate and combined wastewater. Under anaerobic conditions, COD and BOD5 were stabilized after one day, while under facultative conditions, these were stabilized after two days. At 0.1 % EM resulted in the highest removal of both COD and BOD5 as compared to 1.0 and 5.0%EM. |
| Year | 1995 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-95-26 |
| 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 (EV) |
| Chairperson(s) | Samorn Muttamara |
| Examination Committee(s) | Chongrak Polprasert;Umita, Teruyuki |
| Scholarship Donor(s) | Queen Sirikit Scholarship Program Procter;Gamble Manufacturing (Thailand) Ltd. |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1995 |