03422cas|a2200445 i 4500 20260818153803.0 170399s1992 th u m rtt 0| a1eng d .b10410144 AIT Thesis no.EV-92-13 Singh, Kripa Shanka Low strength (domestic) wastewater treatment by Upflow Anaerobic Sludge Blanket (UASB) reactor Bangkok : Asian Institute of Technology, 1992 110 p. Thesis ; no. EV-92-13 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1992 The feasibility of anaerobic treatment for low strength domestic wastewater was investigated using a semi-pilot scale UASB reactor of 126 l volume and 4 m height. This experiment was a continuation of the previous experiment conducted by Lalit Agrawal and H. Harada. The domestic digested sludge was used as seeding. The results reveals that an anaerobic treatment such as UASB is effective in treating domestic wastewater and is able to maintain a large amount active microorganism and effective removal of TSS. The duration of the present experiment was about 7 months. About 92% .COD reduction can be achieved under ambient temperature with a HRT of 3 hr and organic loading of 4 kg-COD/m3 - d. The average methane production was 141 Nl/kg-COD removed. This process also gave a high removal efficiency of COD(about 90 %) for lower strength of 300 mg-COD/L According· to the results obtained, the anaerobic treatment of domestic wastewater appears to be an attractive proposition for tropical countries. A morphology of sludge was examined by Scanning Electron Microscopy and Transmission Electron Microscopy. The granular sludge contained diverse groups of microorganisms whereas rod- type Methanothrix-like cells prevailed inside the granules. Sewage Purification Activated sludge process Harada, Hideki, Chairperson Fujii, Shigeo, Examination committee Chongrak Polprasert, Examination Committee Bhattarai, Kiran Kumar, Examination committee Asian Institute of Technology. Thesis ; no. EV-92-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16644 .b10410144 mnait x 240329 2 951012 m a x 0 mnait mnait mnait mnarc 20 14 40 Barcode : 30050003046637 CREATED : 1994-05-17 RECORD # : i10512482 LPATRON : 1017857 LCHKIN : 2005-09-29 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 1 Barcode : 30050003046645 CREATED : 1994-05-17 RECORD # : i10512494 LPATRON : 1021438 LCHKIN : 2008-06-11 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 9 TOT RENEW : 7 Barcode : 30050120806210 CREATED : 2007-11-28 RECORD # : i12547220 LPATRON : 1024100 LCHKIN : 2013-08-28 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 3 TOT RENEW : 4 Barcode : 30050160056163 CREATED : 2016-11-05 RECORD # : i12974742 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 70837 70837 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no.EV-92-13 30050003046637 2026-08-18 15:38:03 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no.EV-92-13 30050003046645 2026-08-18 15:38:03 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no.EV-92-13 30050120806210 2026-08-18 15:38:03 3 2026-08-18 14 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.EV-92-13 30050160056163 2026-08-18 15:38:03 2026-08-18 40