03219nam a2200409 4500 20260817162918.0 120399s1989 th r 0000|00eng d .b10088283 AIT Thesis no. EV-89-6 Chan, Tik-yuen Application of membrane separation to chlorinated phenols treatment Bangkok : Asian Institute of Technology, 1989 85 p. Thesis ; no. EV-89-6 A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1989 Ethylene hollow fiber membranes of 0.2 æm pore size were used as direct solid/liquid separation device in laboratory-scale aeration tanks for the treatment of phenol, 2-chlorophenol, 2,4,6-trichlorophenol and pentachlorophenol. Phenol-adapted sludge was used. The biodegradability of the chlorinated phenols was dependent on the acclimation period and the chemical properties of the compounds. 2-chlorophenol and 2,4,6-trichlorophenol were readily degraded after 13 days acclimation, while pentachlorophenol required an acclimation period of 20 days. The removal efficiency of the chlorophenols increased with a longer adaptation period and higher volumetric organic loading. Removal rate of phenol and 2-chlorophenol was much faster than 2,4,6- trichlorophenol and pentachlorophenol. Utilization rates of phenol and 2-chlorophenol (kg phenols/(kg MLSS.d)) were over 0.04 and 0.004 d -t respectively, while that of 2,4,6-trichlorophenol and pentachlorophenol wer e around the range of 2.2 x 10 -J d - 1 {u2022} The direct membrane separation activated sludge system was shown to be very stable against shock loadings due to a high MLSS concentration achieved by membrane separation. Good effluent quality was attained as well, owing to the membranes' ability to retain macromolecules from cell lysis. Sewage Purification Phenol removal Yamamoto, K., Chairperson Ahn, Kyu-Hong, Examination Committee Tran, Francis T., Examination Committee The Government of Japan, Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-89-6 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17981 .b10088283 mnait x 240410 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050002932662 CREATED : 1994-05-16 RECORD # : i10094088 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003044848 CREATED : 1994-05-16 RECORD # : i1009409x LPATRON : 1014314 LCHKIN : 2002-02-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 7 TOT RENEW : 1 Barcode : 30050120223291 CREATED : 2016-10-05 RECORD # : i12973725 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 6699 6699 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no. EV-89-6 30050002932662 2026-08-17 16:29:18 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no. EV-89-6 30050003044848 2026-08-17 16:29:18 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no. EV-89-6 30050120223291 2026-08-17 16:29:18 2026-08-17 40