02319nam a2200265   450000500170000000800410001703500150005810000190007324501000009226000520019230000110024449000220025550001660027750200580044352011600050165000350166165000280169670000320172470000460175670000390180270000430184171000500188481000540193485600650198820260818094719.0110398         th                  eng    a.b102241660 aEkapop Sae Lee10aEconomics of algal protein production, harvesting and processing from high-rate oxidation ponds  aBangkok :bAsian Institute of Technology,c1976  a126 p.1 aThesis ;vno. 974  aA thesis submitted in partial fulfillment of the requirements for  the degree of Master of Engineering of the Asian Institute of  Technology, Bangkok, Thailand.   aThesis (M.Eng.) - Asian Institute of Technology, 1976  aEconomic of algal protein production, harvesting and processing from high-rate oxidation ponds was carried out in this research. The objective  was to determine the most economical process for algal production. AIT sewage was used to feed the pond operated both at non-chemical aid (Phase  I) and at chemical aid of 2 mg/l of Purifloc-C31 (Phase II) or at 0.4 me/l of Ferric chloride (Phase III) o Processes being used for initial concentration of algae in algae- laden water samples taken from the pond were  centrifugation, flotation and autoflocculation. Drying techniques used for algae drying open-air sun drying and sand bed drying. Palletization of  algae both as sole constituent and in combination with tapioca was studied for improving marketability of algae. An economic analysis was also studied for evaluating the most economic cost of algae. It was found that autoflocculation with 7 hours detention time was the  most economic process . An autoflocculation plant having capacity of 15, 750 m3/day, with 200 mg/l of algal yields , will give a yearly profit of about US$111, 200, if algae are sold in the same price as conventional fish meal. 0aWaterxPurificationxOxidation 0aAlgaexEconomic aspects1 aPescod, M.B., eChairperson1 aSamorn Muttamara, eExamination Committee1 aHtun, Nay, eExamination Committee1 aYang, Yi Ping, eExamination Committee2 a the Canadian Government, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. 974  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B23825