03221nam a2200397 4500 20260818090346.0 011298s1985 th r 0000|00eng d .b10027920 AIT Thesis no.EV-85-16 Suazo, Ronillo B. A detailed investigation of physical and biological clogging during artificial recharge Bangkok : Asian Institute of Technology, 1985 83 p. Thesis ; no. EV-85-16 A thesis submitted in partial fulfillment of requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1985 An attempt was made to study the physical and biologicals clogging during artificial recharge with an experimental model which simulates artificial recharging practice by taking into consideration practical recharging practice by taking into consideration practical factors like effective infiltration rate of the media, size, porosity and media depth. Recharging was investigated experimentally in terms of suspended solids removal, BOD3 removal, TOC removal and COD removal at different sand sizes and infiltration rates. To understand the physical phenomena involved, the effect of suspended solids concentrations, infiltration rate and media size on headless, suspended solids removal efficiency and specific deposits was studied and verified with the use of simple mathematical models. Three stages of biological clogging were observed. It is possible to predict the cumulative discharge during artificial recharge with the knowledge of the initial infiltration rate and application time. This was compared with the experimental results. The use of the physical constants involved, which is a function of the infiltration rate and sand size, needs to be investigated further in order to understand its variation with sand size. Factors affecting BOD3 removal were investigated. At the steady-state condition, the effect of infiltration rate, sand size and suspended solids concertation on the reaction rate constant was also studied. Water, Underground Artificial recharge Vigneswaran, Saravanamuthu, Chairpeson Ohgaki, Shinnichiro, Examination Committee Orth, H.M., Examination Committee Chongrak Polprasert, Examination Committee Royal Danish Government, Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-85-16 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B20015 .b10027920 mnait x 240409 2 951012 m a x 2 mnait mnarc 22 40 Barcode : 30050120804462 CREATED : 2014-05-28 RECORD # : i12804368 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120224315 CREATED : 2016-09-05 RECORD # : i1297268x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 27825 27825 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.EV-85-16 30050120804462 2026-08-18 09:03:46 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.EV-85-16 30050120224315 2026-08-18 09:03:46 2026-08-18 40