TY  - BOOK
AU  - Kalaya Taimmanenate
AU  - Nguyen Cong Thanh
AU  - Samorn Muttamara, 
AU  -  Asian Institute  of Technology
TI  - Wastewater treatment evaluation of dairy industries
T2  - Thesis
PY  - 1974///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Sewage disposal
KW  - Factory and trade waste
N1  - 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
N2  - 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
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B24231
ER  -