การศึกษาความเหมาะสมในการกำจัดน้ำทิ้งของโรงงานยีสต์ = Study on feasibility of waste water treatment from yeast production plant / Sermpol Ratasuk, Preecha Ploypatarapinyo (CONFIDENTIAL)
โดย: Ratasuk, Sermpol
ผู้แต่งร่วม: Ploypatarapinyo, Preecha | Thailand Institute of Scientific and Technological Research
Language: Thai ชื่อชุด: Class. Invest. no. 19-03ข้อมูลการพิมพ์: Bangkok : Thailand Institute of Scientific and Technological Research, 1976 รายละเอียดตัวเล่ม: 24 p.ชื่อเรื่องอื่นๆ: การศึกษาความเหมาะสมในการกำจัดน้ำทิ้งของโรงงานยีสต์หัวเรื่อง: Waste treatment | Waste waterสาระสังเขป: The process of yeast production from molasses will produce several kinds of waste water but there are only two which must be treated before discharging into the river. These art the separated molasses and the yeast-washed water. The treatment plant for a 10 ton/day plant must be designed to have a capacity of 600 m3/day of waste water which BOD is 7,000 mg/1 or 4,000 kg/day. The treatment alternative should be anaerobic treatment for the first step and aerobic treatment for the second step. From the design criterias such as land requirement, nuisance problems, investment and operating cost, the optimized processes should either be anaerobic lagoon + aerated lagoon or anaerobic digestion + activated sludge. The anaerobic lagoon + aerated lagoon requires 12.5 Rai of land, the investment cost is 1,910,000 Baht and operating cost is 427.60 Baht/day. The anaerobic digestion + activated sludge requires o.5 Rai of land but the investment cost is about 4,723,200 Baht and the operating cost is 1,295 Baht/day. If there is no restriction of land requirement and odor, the anaerobic lagoon + aerated lagoon is the most suitable treatment alternative. - Authors.
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