Study on the degradability of sludges from domestic and industrial wastewater treatment plants in Thailand | |
| Author | Begum, Shamim Ara |
| Call Number | AIT Thesis no.WM-01-01 |
| Subject(s) | Sewage disposal plants--Thailand Factory and trade waste--Thailand Refuse and refuse disposal--Thailand |
| Note | A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This study was carried out to evaluate and assess the performance of domestic and industrial wastewater treatment plants in Thailand with regard to sludge composition and sludge generation. To prevent the damage of the disposal of unstabilized sludge to the environment, assessment of the degradability of the Sludges has been done to define the degree of stabilization of Sludges. An intensive survey study was conducted within Bangkok city to collect different kinds of domestic and industrial wastewater treatment plant Sludges and other additional informations like the composition of the plant's wastewater and the operating conditions of the plants. Considering the composition wastewater and the operational conditions of the plants the performance of the treatment plants has been evaluated. Degradability of the sludges has defined by measuring the degree of stability of different kinds of sludges. It was found that, most of the plants use aerobic process to treat the wastewater. Some industries have a combination of UASB with activated sludge process. Sludge generation with respect to sludge age is quite satisfactory for all the plants. In general the plants are not working well with loading conditions. Boonrawd brewery uses UASB as preliminary process with the combination of activated sludge system, which results in a very good BOD5 removal of 95.63% and an excess sludge production of 1.01 g DS/g BOD5 removal. The composition of sludges collected from domestic and industrial plants has shown the characteristics of quite stable sludge. Incase of domestic sludges the sludge from regent hotel has the highest degree of stability and the sludge from MBK center has the lowest degree of stability. In case of industrial sludges the sludge from Pepsi has the highest degree of stability and the sludge from slaughterhouse has the lowest degree of stability. |
| Year | 2002 |
| 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) | Trankler, Josef ; |
| Examination Committee(s) | Gupta, Ashim Das ;Lee, Seung-Hwan; |
| Scholarship Donor(s) | DAAD; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2002 |