03007nam a2200409 4500 20260818090151.0 021098s1979 th r 0000|0 eng d .b10189701 AIT Thesis no. EV-79-29 Chen, Yih-rong Design criteria for inclined tube settlers Bangkok : Asian Institute of Technology, 1979 68 p. Thesis ; no. EV-79-29 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, 1979 This research was conducted in an attempt to develop useful design criteria of inclined square tube settlers for their application in surface water treatment system. The pilot unit was designed keeping the similarities of a conventional settling tank. The experiments were per formed with various influent turbidities under different flow rates and tube lengths. From the model developed, it was found that 14.9 is the economical critical value for square tube dimension L (i.e. L = t/d, d is the size of tube, tis the length of tube) . Both flow rate and influent turbidity affect this critical value. It is desirable to keep the flow rate at less than 0.3 cm/s (10.8 m3/m2-h). The optimum flow rate is 0.2 cm/s (7.2 m3/m2-h), and the corresponding tube dimensions Lare 12.5, 19, 28 for 20, 40, 60 JTU turbidity of raw water, respectively. Diagrams, tables and mathematical model are developed for E = (1 + C) (g(T) f'(T)) in which C is a constant; overflow rate; E removal efficiency. On the basis of this information, the designer can easily make decisions as to what dimensions of tube to be used and surface area required. Water-supply engineering Apparatus and supplies Nguyen, Cong Thanh, Chairperson Lohani, Bindu N., Co-Chairperson I, Fude, Examination Committee Taiwan Power Company, R.O.C., Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-79-29 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B22248 .b10189701 mnait x 250611 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003103032 CREATED : 1994-05-16 RECORD # : i10227040 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050002932845 CREATED : 1994-05-16 RECORD # : i10227052 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120226575 CREATED : 2016-04-27 RECORD # : i12958311 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 27091 27091 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. EV-79-29 30050003103032 2026-08-18 09:01:51 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. EV-79-29 30050002932845 2026-08-18 09:01:51 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. EV-79-29 30050120226575 2026-08-18 09:01:51 2026-08-18 40