02830nas a2200433 i 4500 20260819085205.0 301198s1987 th u m rtt 0| a1eng d .b1074325x AIT RSPR no. EV-87-2 Gang, Liaw Jeen Treatment of chromium wastewater with regionally available reagents Bangkok : Asian Institute of Technology, 1987 83 p. Research studies project report ; no. EV-87-2 A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1987 This study aimed to evaluate the flocculation and sedimentation performances in treating chromium wastewater by a few regionally available reagents-Kaolinite Clay (mesh no. 275, 380 and 500), Bentonite, Diatomite, and Alum. The experiment started at finding the dosage requirements and detentio~ time required in a suitable pH range for the reduction of hexavalent chromium to trivalent chromium by Ferrous Sulfate and Sodium Metabisulfite. Varying amounts of flocculants (200, 300 and 400 mq z L) were used in Jar Tests to find the optimum dosage. The results from the Jar Test were applied to Scale Plant to check the flocculation capability during a continuous flow. a Pilot It was found that Clay can be used to' flocculate the precipitates of metal hydroxides in a more concentrated sludge form. Water-supply Nepal Information storage and retrieval systems Water-supply Orth, H.M., Chairperson Hanaki, K., Examination Committee Shin, H.S. Examination Committee DAAD, Scholarship Donor Asian Institute of Technology. Research studies project report ; no. EV-87-2 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19012 .b1074325x mnait y 240403 2 951012 m a y 0 mnait mnait mnarc 22 40 20 Barcode : 30050120613525 CREATED : 2012-10-10 RECORD # : i12703965 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120220636 CREATED : 2016-01-04 RECORD # : i12920095 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121074362 CREATED : 2023-03-04 RECORD # : i13441577 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 122996 122996 0 0 0 0 MAIN MAIN mnait 2026-08-19 0 AIT RSPR no. EV-87-2 30050120613525 2026-08-19 08:52:05 3 2026-08-19 22 0 0 0 0 MAIN MAIN mnarc 2026-08-19 0 AIT RSPR no. EV-87-2 30050120220636 2026-08-19 08:52:05 2026-08-19 40 0 0 0 0 MAIN MAIN mnait 2026-08-19 50.00 0 AIT RSPR no. EV-87-2 30050121074362 2026-08-19 08:52:05 1 2026-08-19 20