04803nam a2200421 4500 20260818112827.0 th eng .b11686790 AIT Thesis no. EV-97-09 Bhargava, Amit Evaluation of Swirl-FloTM clarifier and UV/H2O2 process for domestic wastewater treatment Bangkok : Asian Institute of Technology, 1997 83 leaves Thesis ; no. EV-97-09 Reuse of municipal sewage (building effluent) as make-up water for cooling towers used for central air-conditioning plants in offices and other high rise buildings is a potentially excellent method of preserving large quantities of pristine waters for domestic and recreational use. This investigation was aimed at developing and evaluating a blend of conventional and modern technology for treatment of wastewater: a combination of Swirl-Flo TM Clarifier (SFC) and Ultraviolet light/Hydrogen Peroxide (UV /H20 2) process coupled with pressure sand filter and activated carbon adsorption column. The study was conducted to delineate relevant operational parameters for SFC and UV reactor. Overall Total Suspended Solids (TSS) and Chemical Oxygen Demand (COD) removal of about 82 % and 90 %, respectively was achieved in the plant. TSS removal in SFC was influenced by feed flow rate. Optimum feed flow rate in SFC was found to be 5.5-6.0 m3 /hr at PAC and Polymer dosing of 200 ppm and 2 ppm, respectively for which SS removal efficiency of 45-50 % was obtained. COD removal in SFC was 37-42 % (at the optimum flow rate), while that in UV Reactor was 18-23 % at H20 2 (50 % strength) dosing of 600-700 ppm. The quality of effluent obtained from this process was satisfactory and could be used as make-up water in cooling towers. The effluent quality was consistent and variation was much less as compared to the variation in influent wastewater. Thesis (M.Eng.) - Asian Institute of Technology, 1997 Reuse of municipal sewage (building effluent) as make-up water for cooling towers used for central air-conditioning plants in offices and other high rise buildings is a potentially excellent method of preserving large quantities of pristine waters for domestic and recreational use. This investigation was aimed at developing and evaluating a blend of conventional and modern technology for treatment of wastewater: a combination of Swirl-Flo TM Clarifier (SFC) and Ultraviolet light/Hydrogen Peroxide (UV /H20 2) process coupled with pressure sand filter and activated carbon adsorption column. The study was conducted to delineate relevant operational parameters for SFC and UV reactor. Overall Total Suspended Solids (TSS) and Chemical Oxygen Demand (COD) removal of about 82 % and 90 %, respectively was achieved in the plant. TSS removal in SFC was influenced by feed flow rate. Optimum feed flow rate in SFC was found to be 5.5-6.0 m3 /hr at PAC and Polymer dosing of 200 ppm and 2 ppm, respectively for which SS removal efficiency of 45-50 % was obtained. COD removal in SFC was 37-42 % (at the optimum flow rate), while that in UV Reactor was 18-23 % at H20 2 (50 % strength) dosing of 600-700 ppm. The quality of effluent obtained from this process was satisfactory and could be used as make-up water in cooling towers. The effluent quality was consistent and variation was much less as compared to the variation in influent wastewater. Water treatment plants Thailand Bangkok Water reuse Thailand Bangkok Annachhatre, Ajit P., Chairperson Eckhardt, Hienz, Examination Committee Ha, Sung-Ryong, Examination Committee Asian Institute of Technology Partial Scholarship, Scholarship Donor Asian Institute of Technology. Thesis ; no. EV-97-09 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B14320 .b11686790 mnait y 240403 0 971208 m a y 0 mnait mnait mnarc 20 40 Barcode : 30050120600654 CREATED : 1996-11-07 RECORD # : i12036146 LPATRON : 1024744 LCHKIN : 2015-05-15 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 Barcode : 30050120600647 CREATED : 1996-11-07 RECORD # : i12036158 LPATRON : 1025463 LCHKIN : 2016-04-05 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 4 TOT RENEW : 6 Barcode : 30050160078514 CREATED : 2016-05-23 RECORD # : i12986367 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 41263 41263 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-97-09 30050120600654 2026-08-18 11:28:27 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. EV-97-09 30050120600647 2026-08-18 11:28:27 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. EV-97-09 30050160078514 2026-08-18 11:28:27 2026-08-18 40