02787nas a2200421 4500 20260818112715.0 271098s1981 th r 000| eng d .b10260122 AIT Thesis no.EV-81-13 Hettiaratchi, Joseph Patrick Anthony Evaluation of design parameters for deep-bed rapid sand filters Bangkok : Asian Institute of Technology, 1981 61 leaves : ill. Thesis ; no. EV-81-13 A thesis 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, 1981 A process analysis method was developed for particle removal in deepened granular media filters, which would permit optimum filter design with a minimum of well designed pilot plant studies. Mathematical models purporting to describe the dependency of filter coefficient, on specific deposit a were examined, based on controlled filtration experiments. Using an experimental system of unisized medium grains with stabilized and destabilized suspensions, model parameters were evaluated for each sand size and filtration rate . Empirical relationships showing the dependency of model parameters on system variables were developed. Application of the proposed models in predicting the concentration and specific deposit profiles indicate that this method can permit prediction of filter performance, provided parametric dependence of model parameters is known. Sewage Purification Rotating disc process Nguyen, Cong Thanh, Chairperson Lonani, B.N., Co-Chairperson Watanabe, Y, Examination Committee CDG (Germany), Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-81-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B21607 .b10260122 mnait x 250106 2 951012 m a x 0 mnait mnait mnarc 22 40 20 Barcode : 30050120655807 CREATED : 2014-04-02 RECORD # : i12756593 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160084686 CREATED : 2016-04-05 RECORD # : i12968572 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121075252 CREATED : 2023-03-16 RECORD # : i1343858x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 40911 40911 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-81-13 30050120655807 2026-08-18 11:27:15 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.EV-81-13 30050160084686 2026-08-18 11:27:15 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-81-13 30050121075252 2026-08-18 11:27:15 1 2026-08-18 20