1 AIT Asian Institute of Technology

Septage recycling in waste stabilisation ponds

AuthorBhattarai, Kiran Kumar
Call NumberAIT Diss. no. EV-85-1
Subject(s)Sewage lagoons
NoteA dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering, School of Environment, Resources and Development
PublisherAsian Institute of Technology
AbstractThe research programme on aquacultural treatment of nightsoil has been conducted at the Asian Institute of Technology (AIT) for about 10 years. This dissertation emphasizes only on the research in which nightsoil and biogas slurry are fed directly into single-stage, non-flow-through ponds for the production of algae and fish Tilapia (Oreochromis niloticus). The culture of herbivorous fish such as Tilapia in the same pond to graze on the algae is practical, in order to produce the fish protein biomass which is easily harvestable for animal (or human) food. Empirical and dynamic models describing the performance of septage and biogas slurry fed fish ponds were developed to simulate the temporal changes of various physico-chemical and biological parameters including dissolved oxygen, carbon dioxide, bacteria, algae, and fish growth. These models were based on the basic mechanisms and phenomena occurring in the ponds, and the simulated results calculated from the Continuous System Modelling Programme (CSMP) computer package available at the AIT Regional Computer Center.
Year1985
TypeDissertation
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSEnvironmental Engineering and Management (EV)
Chairperson(s)Chongrak Polprasert
Examination Committee(s)Lohani, B. N. ;Fude, I. ;Huynh, Ngoc Phien ;Orth, H. ;Hanaki, K.
Scholarship Donor(s)The Government of Japan
DegreeThesis (Ph.D.) - Asian Institute of Technology, 1985


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