03342nam a2200409 4500 20260819090336.0 080198 th eng .b10768348 AIT Thesis no. 758 Kalaya Taimmanenate Wastewater treatment evaluation of dairy industries Bangkok : Asian Institute of Technology, 1974 82 p. Thesis ; no. 758 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science of the Asian Institute of Technology, Bangkok, Thailand. Thesis (M.Sc.) - Asian Institute of Technology, 1974 The processing lines, the sources of wastewater were investigated. The physical and chemical properties were assessed. The flow variations were measured. The results indicated that the waste contained very high COD, most of it was soluble and biologically degradable, the nitrogen and phosphorous were low compared with COD concentrations . The biological treatability was evaluated, the results showed the feasibility of using biological treatment method for this waste. Activated sludge and aerated lagoon were studied Batch-activated sludge process showed that the oxidation of organic matters was very rapidly in the first 4 hours, endogenous respiration took place after 4 hours aeration. The design parameters were determined according to ECKENFELDER's approach. From continuous-fed activated sludge process study, the optimum loading rate was 1.0 gm COD/gm MLSS-day. The design parameters were also determined according to ECKENFELDER's approach. The COD removal efficiency was about 92%. Aerated lagoon efficiency operated at different detention times was determined, 7 days detention time was considered as optimum time, the efficiency was about 90%. The design parameters, sludge production and oxygen requirement were determined. The budget and land available are two important constraints used in the consideration of the suitable waste treatment method for the industry. The study of existed aerated lagoon was also carried out, the improvements of it were suggested. Sewage disposal Factory and trade waste Nguyen Cong Thanh, Chairpeson Samorn Muttamara, Co-Chairperson Asian Institute of Technology, Scholarship Donor Asian Institute of Technology. Thesis ; no. 758 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B24231 .b10768348 mnait v 260528 2 951012 m a v 0 mnait mnarc mnait 20 40 Barcode : 30050003035275 CREATED : 1995-10-16 RECORD # : i10984902 LPATRON : 1025184 LCHKIN : 2015-08-17 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 5 TOT RENEW : 0 Barcode : 30050160093109 CREATED : 2016-04-22 RECORD # : i12949188 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121037153 CREATED : 2022-11-24 RECORD # : i1341656x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 127409 127409 0 0 0 0 MAIN MAIN mnait 2026-08-19 0 AIT Thesis no. 758 30050003035275 2026-08-19 09:03:36 2 2026-08-19 20 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT Thesis no. 758 30050160093109 2026-08-19 09:03:36 2026-08-19 40 0 0 0 0 MAIN MAIN mnait 2026-08-19 0 AIT Thesis no. 758 30050121037153 2026-08-19 09:03:36 1 2026-08-19 20