1 AIT Asian Institute of Technology

Physio-chemical parameters in sludge loaded fish ponds

AuthorSharma, Hari Prasad
Call NumberAIT RSPR no. EV-85-7
Subject(s)Septic tanks
fish ponds

NoteA research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development
PublisherAsian Institute of Technology
AbstractEight experimental ponds with loadings of 75, 150, 300 and 450kg COD/ha.d were run about 2 months. In each loading one pond was stocked with fish and other without fish. During the experiment total and filtered COD, BOD, ammonia and organic nitrogen, phosphorus, solids, algae, dissolved oxygen, pH, water temperature and alkalinity were measured. In the stocking density of 5 fish/sq m the loading of 150 kg COD/ha.d gave the maximum extrapolated fish yield of 7532 kg/ha.yr. After the experiment the ponds contained high values of COD, nitrogen and phosphorus. Recycling of septic tank sludge into fish found suitable technic for the rural areas of developing countries in tropical climates, where land and labour is available in low cost.
Year1985
TypeResearch Study Project Report (RSPR)
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSEnvironmental Engineering and Management (EV)
Chairperson(s)Chongrak Polprasert ;Lohani, B.N.
Examination Committee(s)Ohgaki, S. ;
Scholarship Donor(s)Australia;
DegreeResearch Studies Project Report (M. Eng.) - Asian Institute of Technology, 1985


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