1
Standard method for BOD determination in the tropics | |
Author | Kasemsri Pranyodhin |
Call Number | AIT Thesis no.EV-80-13 |
Subject(s) | Biochemical oxygen demand |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, school of Environment, Resources and Development |
Publisher | Asian Institute of Technology |
Abstract | Thirty degree centigrade (30°C) is considered as the average temperature of most receiving waters in the tropics. Values of Biochemical Oxygen Demand (BOD) measured at this temperature would, therefore, more useful and appropriate for treatment and management purposes. In this study, a large number of BOD of standard glucose solution, river water, domestic and various industrial wastewaters including those of tapioca, tannery, textile, cannery, distillery, pulp and paper and palm oil industries were measured at two different incubation temperatures of 20°c and 30°c. For glucose solution the results show that the deoxygenation coefficient at 30°C is almost double that at 20°c and that the BOD 3-day and 30°C (BOD3) is comparable to the BOD 5-day and 20°c (BOD3 ). The ultimate BOD was found independent of the incubation temperature. 100 ml - BOD bottles as recommended by Japanese Standards Association were used in parallel with 300 ml - BOD standard bottles to determine BOD of various glucose solutions. The results obtained for both cases are highly correlated. It was estimated that, by using 100 ml - bottles the chemical costs can be reduced by 50%. |
Year | 1980 |
Type | Thesis |
School | School of Environment, Resources, and Development |
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) | Samorn Muttamara ; Nguyen, Cong Thanh |
Examination Committee(s) | Chongrak Polprasert |
Scholarship Donor(s) | The Royal Netherlands Government |
Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1980 |