03211cas|a2200409 i 4500 20260818133523.0 170399s1991 th uzm rtt 00| a1eng d .b10331098 AIT Thesis no. EV-91-23 Agrawal, Lalit Kumar High rate treatment of low strength (domestic) wastewater by modified upflow anaerobic sludge blanket (UASB) reactor Bangkok : Asian Institute of Technology, 1991 91 p. Thesis ; no. EV-91-23 A thesis submitted in partial fulfillment of t he requirements for the degree of Master o f Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1991 Experiments were carried out using a 126 l and 4 m high modified UASB reactor to study the feasibility of treating low strength (domestic) wastewater using domestic digested seed sludge. The results reveal that an anaerobic treatment such as this process is effective in treating domestic wastewater and is able to maintain a large mass of active microorganisms and effective removal of TSS. The test was covered a period of six months. About 86% COD reduction can be achieved under ambient temperatures condition maintaining a HRT of 8 h and organic loading rate of 1.56 kg COD/m3d. The average methane production during the experimental period amounts to be 128 Nl/kg COD. According to the results obtained, the anaerobic treatment of domestic wastewater appears to be an attractive proposition for tropical areas. A morphology of the sludge was examined by Scanning Electron Microscopy. This showed high enrichment of microorganisms. Presence of a considerable a mount of polymetric substance excreted by cells appeared to mediate attachment of cell to cell and it is useful for granule formation. Outer part of the sludge contained diverse group of microorganisms where as rode-type methanothrix-like cells prevails in the inner part. Sewage Purification Activated sludge process Harada, Hideki, Chairperson Chongrak Polprasert, Examination Committee Verink, Johan, Examintion Committee The Royal Denmark Government (DANIDA SCHOLARSHIP), Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-91-23 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17414 .b10331098 mnait x 240402 2 951012 m a x 0 mnait mnait mnarc 20 40 Barcode : 30050003046264 CREATED : 1992-12-18 RECORD # : i10411501 LPATRON : 1018634 LCHKIN : 2004-08-23 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050003046272 CREATED : 1992-12-18 RECORD # : i10411513 LPATRON : 1026285 LCHKIN : 2016-01-18 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 5 TOT RENEW : 1 Barcode : 30050160056353 CREATED : 2016-11-05 RECORD # : i12974535 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 55016 55016 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-91-23 30050003046264 2026-08-18 13:35:23 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-91-23 30050003046272 2026-08-18 13:35:23 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. EV-91-23 30050160056353 2026-08-18 13:35:23 2026-08-18 40