Soft drink bottling plant waste handling survey

AuthorSang, Tsui Tak
Call NumberAIT Thesis no. 640
Subject(s)Plant engineering
Factory and trade waste
Brewery waste
NoteA thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractA pilot plant was set up to determine the optimum operational parameters for treating Pepsi-Cola Waste which contains an average COD concentration of 1150 mg/l. The conventional activated sludge process, the contact-stabilization process and extended aeration were operated at the laboratory scale, with special emphasis on the latter. The actual plant for wastewater treatment at Sermsuk Co. Ltd. is an extended aeration plant, with a view to minimizing sludge handling problems. Operational cost analyses, together with comparisons were made between the actual plant performance and the pilot plant series. The results obtained showed that the biodegradability of the waste could be as high as 99%. The rate of production of sludge was very high and the sludge volume index of the sludge obtained was always above 150 mg/l. Complete mixing with 24 hr aeration was run with various F/M ratios and MLSS levels. These runs revealed that conventional process gave high sludge production, contact-stabilization yielded unsatisfactory effluents, and extended aeration yielded sparkling effluents, together with a low production of sludge. Investigation into the actual plant performance showed that nutrient supplementation was a little less than that required by the same run in the pilot plant study. Cost analyses gave a cheaper operational cost for a series operated at lower F/M ratio, but the reduction of cost was not large.
Year1974
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Yang, Yi Ping
Examination Committee(s)Pescod, M.B. ; Nguyen, Cong Thanh
Scholarship Donor(s)Asian Institute of Technology
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1974


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