| Author | Marinas, Olivia Bose |
| Call Number | AIT Thesis no. 188 |
| Subject(s) | Sewage lagoons
Algae
|
| Note | A thesis submitted in partial fulfilment of the requirements
for the degree of Master of Engineering in the SEATO Graduate School of Engineering, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | The effects of selected environmental factors on the growth of algae dominant in waste stabilization ponds have been assessed. The three algal species. Chlamydomonag, ChloreIla, and Oscillatoria, known to be active in waste stabilization ponds in Southeast Asia, were isolated and maintained as unialgal cultures.
Various pHr from 3-10 and sulphide concentrations from 0 mg/1 S= 1000 mg/1 S= were studied. The relative importance of nitrogen and phosphorus to algae was evaluated by carrying out deficiency tests.
The wide range of pH in which growth of algae was favourable,
from pH 5-10, indicated that pH would not limit algal growth in
ponds unless extreme conditions occurred. Neither nitrogen nor
phosphorus deficiency affected growth of the algae significantly.
However, the tests showed that phosphorus deficiency had a greater effect than nitrogen deficiency on algal growth. Sulphide was found to be toxic at concentrations exceeding 400-500 mg/1 S . |
| Year | 1967 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Pescod, M.B. |
| Degree | Thesis (M. Eng.) - SEATO Graduate School of Engineering,1967 |
