TY  - BOOK
AU  - Chan,Tik-yuen
AU  - Yamamoto,K.
AU  - Ahn,Kyu-Hong
AU  - Tran,Francis T.
ED  - The Government of Japan, 
TI  - Application of membrane separation to chlorinated phenols treatment
T2  - Thesis
PY  - 1989///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Sewage
KW  - Purification
KW  - Phenol removal
N1  - 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
N2  - 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
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B17981
ER  -