| Author | Somsuda Buakham |
| Call Number | AIT Thesis no. AE-92-23 |
| Subject(s) | Sewage--Purification--Biological treatment
|
| Note | A thesis submitted for partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | The thesis consisted of two experiments: first, an investigation of the
feasibility of introducing green mussel (Perna viridis) culture to the drainage canal
receiving shrimp pond effluent and the appropriate culture method to be
conducted, and second , study on the assimilation capacity of green mussel in the
utilization of foodstuffs available in shrimp pond water under the flow-through
system of 1600, 750, 350, and 190 mL/min or 4, 2, 1 and 0.5 time/hr of water
replacement rate (WRR.). I
The effect of various culture methods on mussel growth and condition factor
was not significant under the studied conditions. Water salinity was a critical factor
affecting the mussel's capacity to filterfood particles and growth. Small mussels
had lower capacity in removal of total suspended solids (TSS) from wastewater
than large ones based on unit biomass. The optimal flow rate for mussel to remove
TSS , chlorophyll a, total volatile suspended solids , chemical oxygen demand
(COD) and total phosphorus removal was at the lowest level of 0.5 time/hr ofWRR.
The percentage food particle removal was inversely related to flow rate.
Regeneration of inorganic nutrients (total ammonia, nitrate, ortho phosphate) by
both sizes of mussels was non-conclusive due to inadequate observations.
The mussel's filtering rate was affected by flow rate and food quantity
presented to mussels, and biodeposition rate was influenced by the species
composition of the plankton. Assimilation efficiency was probably affected by food
quality and quantity presented to mussels, and might be affected by water flow rate
also. The maximum feeding rate and assimilation efficiency, and also the minimum
biodeposition rate were observed at the minimum flow rate. |
| Year | 1992 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Lin, Chang Kwein ;Phillips, Michael J.
|
| Examination Committee(s) | Edwards, Peter |
| Scholarship Donor(s) | Canadian International Development Agency; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1992 |