| Author | Suthimol Kessomboon |
| Call Number | AIT Thesis no. EV-90-17 |
| Subject(s) | Sewage--Purification--Biological treatment
|
| 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 | This study was conducted to determine the efficiencies of the
water spinach, water hyacinth and cattail plants in the treatment
of pig wastewater. It was found that the organic loading rates of
50-300 kg COD/(ha-d) resulted in about 75- 90% COD removal in the
water hyacinth units, while the water spinach units operating at
the same loadings and COD removal about 20- 70%. The effects of
installing gravel media at the bottom of the water hyacinth units
were not significant.
The effluent of the aquatic treatment units operating at the
organic loading rate of 200 kg COD/(ha - d) could satisfy the
effluent standards set by the Ministry of Industry, Thailand,
based on BOD5 and SS. Also, the best COD removal efficiency of the
aquatic treatment unit was found at HRT of 20 days. Finally, water
hyacinth plants were found to contain N content more than water
spinach and cattail plants. |
| Year | 1990 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Chongrak Polprasert |
| Examination Committee(s) | Samorn Muttamara ; Suselo, Tri Binarko
|
| Scholarship Donor(s) | DAAD, The Government of the Federal Republic of Germany |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1990 |