03264nas a2200421 4500 20260818143659.0 011298s1986 th r 000| 0eng d .b10367615 AIT Thesis no.EV-86-14 Seo, G. T. Interactions between dispersed growth and attached growth in activated sludge reactor Bangkok : Asian Institute of Technology, 1986 104 p. Thesis ; no. EV-86-14 A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1986 Laboratory scale experiments were conducted to investigate the interactions between the attached and dispersed growth microbial behaviors in activated sludge reactors with sludge recycle. At a 10 d SRT, the performance of the attached growth activated sludge process(AGASP) with various amounts of contact media, such as 5%, 10%, and 20% of reactor volume, was investigated by comparing its effectiveness to the conventional one at various organic loadings of 0.81, 1.44, 2.01, and 3.18 kgCOD/m3. d. AGASP showed more effectiveness than the conventional unit (at 99% of significance level by the t-test). Oxygenation parameters, a & b in AGASP, were also obtained in the range of 0.3-0.5 for a and 0.004-0.054 for b, respectively. The kinetic coefficients k , K., Y, and Kd. for AGASP were found using the LAWRENCE and McCARTY's models and appeared to be in the range of 1-2 d-1, 20-50 mg/l, 0.4-0.8, and 0.14-0.22 d-1, respectively. Computer simulation of the performance of AGASP was also {u2022} conducted using system dynamics simulation model(Attached-Dispersed growth Microbial Interaction Model, ADMIM). Even though this model showed simple results with a little sensitivity, better simulation of the performance of AGASP can be expected by considering other important parameters of the system. Sewage Purification Activated sludge process Chongrak Polprasert, Chairperson Samorn Muttamara, Examination Committee Shin, Hang Sik, Examination Committee Government of Japan, Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-86-14 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19639 .b10367615 mnait x 240402 2 951012 m a x 0 mnait mnait mnarc 22 40 20 Barcode : 30050120749972 CREATED : 2014-03-28 RECORD # : i12782130 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120224042 CREATED : 2016-09-05 RECORD # : i12972952 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121074123 CREATED : 2023-05-04 RECORD # : i13442107 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 61991 61991 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-86-14 30050120749972 2026-08-18 14:36:59 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.EV-86-14 30050120224042 2026-08-18 14:36:59 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-86-14 30050121074123 2026-08-18 14:36:59 1 2026-08-18 20