03426cas|a2200409 i 4500 20260817162838.0 170399s1992 th u m rtt 0| a1eng d .b10087424 AIT Thesis no.EV-92-19 Agarwalla, Binod Kumar Application of biofilm model in facultative pond design Bangkok : Asian Institute of Technology, 1992 131 p. Thesis ; no. EV-92-19 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1992 An integrated approach of de scribing the s ubstrate removal in a facultative pond by s u s p ende d b i omass in the pond liquid and biomass attached to the inner walls and pond bottom (biof ilm) was attempte d. Mathematical models were developed to combine the effect s of s uspe nded biomass and biof ilm on t h e s ubstr ate remova l kinetics. Monod kinetics a nd first order kine tics were u sed in four different combi nations in developing t he mode l s. Batch experime n ts were conducted to determine the kinetic coefficients for suspended biomass and biofilm separately. It was found from t h e study t h at t h e maximum substrate utilization rates , under the conditions of facultative pond, were approximately 8 times l ower than the typical valu e report ed i n t h e literature for activated s ludge process. The de ve lope d mode l s were tested with the data obtained from a n AIT facultative pond, a nd a facultative pond l ocated i n New Mex i co , USA, moni tored for one year . It was found from the study that, the efflu e n t BOD5 predicted from the mode l u sing f irst order kinetics for both s u spended biomass and biofilm, fits reasonably we ll with the experimental data from a facultative pond of AIT campus and a pond of Ne w Mexico, U.S . A. A design c hart was prepared based on the model using first order kinetics for both s u spended biomass and biofilm. An examp l e was included t o design a f acultative pond based on BOD5 remova l efficiency and incorporating t h e e ffect of biof ilm in the design procedure. Sewage lagoons Mathematical models Chongrak Polprasert, Chairperson Schroder, Hans, Examination committee Visvanathan, C., Examination Committee CIDA, Scholarship donor Asian Institute of Technology. Thesis ; no. EV-92-19 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16653 .b10087424 mnait x 240410 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003046744 CREATED : 1994-05-16 RECORD # : i10092778 LPATRON : 1024699 LCHKIN : 2015-03-05 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 10 Barcode : 30050004365655 CREATED : 1994-05-16 RECORD # : i1009278x LPATRON : 1017687 LCHKIN : 2005-01-14 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 6 TOT RENEW : 2 Barcode : 30050160056106 CREATED : 2016-11-05 RECORD # : i12974808 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 6493 6493 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.EV-92-19 30050003046744 2026-08-17 16:28:38 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 10.00 0 AIT Thesis no.EV-92-19 30050004365655 2026-08-17 16:28:38 2 2026-08-17 20 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT Thesis no.EV-92-19 30050160056106 2026-08-17 16:28:38 2026-08-17 40