Performance evaluation of compact RBC-settling tank system | |
| Author | Chang, Jae-soo |
| Call Number | AIT Thesis no.EV-89-30 |
| Subject(s) | Sewage--Purification--Rotating disc process Sewage--Environmental aspects |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | A laboratory study was conducted to investigate the performance of RBC-Settling thank system on wastewater treatment in comparison with conventional RBC. Same synthetic wastewater was fed parallel into for stage laboratory scale cascade-connected RBC-Settling tank and conventional RBC reactors at a fixed rotational speed and hydraulic loading. At three different organic loading rates of 6.14, 13.44 and 23.31 g SCOD/m2/day, the results of the systems are presented in terms of ammonia nitrogen (NH3-N), total kjeldahl nitrogen (TKN), organic and suspended solids (SS) loading and removal. Disk Biomass Index (DBI), Sludge Biomass Index (SBI) and Fractional Biomass Volatile Solids Destruction (FBVSD) were used to compare the disk active biomass and sludge stability of the RBC-Settling tank system with those of the conventional RBC. Removal efficiency of Suspended solids, ammonia nitrogen and total kjeldahl nitrogen was found much higher in the RBC-Settling tank system than the conventional RBC but organic removal in terms of SCOD removed g/m2/day of both reactors was not much different. Much better sludge stabilization was observed in the RBC-Settling tank system. The RBC-Settling tank system showed good performance on the suspended solid, NH3-N and TKN removal, and sludge stabilization as well as organic removal, which indicates that this in an effective and economical system for treating domestic wastewater in small and isolated communities. |
| Year | 1989 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Ahn, Kyu-Hong |
| Examination Committee(s) | Tran, Francis T. ;Yamamoto, Kazuo |
| Scholarship Donor(s) | Royal Thai Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1989 |