03523nam a2200433 4500 20260819085216.0 120399s1989 th r 0000|00eng d .b10743601 AIT Thesis no.EV-89-22 Udomphon Puetpaiboon Treatment of tapioca starch wastewater by anaerobic digestion combined with membrane separation process Bangkok : Asian Institute of Technology, 1989 59 p. Thesis ; no. EV-89-22 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, 1989 Feasibility study of using UF membrane alone to treat t apioca starch wastewater and effluent from anaerobic filter as post-treatment were conducted. The results obtained show that in t erms of COD removal efficiency and filtrate rate, treatment of tapioca starch wastewater using UF membrane alone is impractical and post-treatment of effluent of this wastewater from anaerobic filt er is possible. Furthermore, the study of treatment of synthetic starch wastewater using anaerobic digester coupled with hollow fiber ultraf iltration membrane for solid/liquid separation was investigated . The study was conducted with different pore sizes of membrane of . 03, . 05, .10 and .15 æm. From the study using organic loading rate of 1.76 kg COD/m3 ·d, gives t he similar results in terms of COD removal and biogas production. Thus the study were conducted with different organic loading rates of 2. 51, 3.53, 5.88, 8.83 and 11.77 kg COD/m3 ·d respectively. Th~ system. was capable of achieving 81.1 percent COD removal at an organic loading rate of 11 . 77 kg COD/m3 ·d and up to 92.2 percent COD removal at an organic l oading rate of 1.76 kg COD/m3 ·d. Maximum gas yield of 0.74 m3 /kg COD utilized was obtained at 92 .2 percent COD removal . The stable operation was kept over an operational period of 3 months at an average net flux of 1.85 * 10- 7 m3 /(m2 ·s). The key factors for the stable operation are low transmembrane pressure and intermittent filtration. Sewage Purification Factory and trade waste Vigneswaran, Saravanamuthu, Chairperson Yamamoto, Kazuo, Examination Committee Keiengsak Udomsinrot, Examination Committee Danish International Development Agency, (DANIDA), Denmark., Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-89-22 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18021 .b10743601 mnait x 240403 2 951012 m a x 0 mnait mnarc mnait 22 40 20 Barcode : 30050120807101 CREATED : 2014-03-28 RECORD # : i12782361 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120223135 CREATED : 2016-11-05 RECORD # : i12973907 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121075179 CREATED : 2023-03-17 RECORD # : i13438669 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 123049 123049 0 0 0 0 MAIN MAIN mnait 2026-08-19 50.00 0 AIT Thesis no.EV-89-22 30050120807101 2026-08-19 08:52:16 3 2026-08-19 22 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT Thesis no.EV-89-22 30050120223135 2026-08-19 08:52:16 2026-08-19 40 0 0 0 0 MAIN MAIN mnait 2026-08-19 50.00 0 AIT Thesis no.EV-89-22 30050121075179 2026-08-19 08:52:16 1 2026-08-19 20