02432nas|a2200421 i 4500 20260817171613.0 030124s2003 th uzm rtt 00| a1eng d .b11946520 AIT RSPR no.PP-03-8 Badruzzaman, Kazi Bleaching of old newspapers and magazines (ONP and OMG) with hydrogen per oxide Pathum Thani, Thailand : Asian Institute of Technology, 2003 47 leaves Research studies project report ; no. PP-03-8 A research study submitted in partial fulfillment of the requirements for the degree of Master of Science. This study was undertaken to explore bleaching of ONP/OMG furnish at a ratio of 80:20 using H20 2 as a bleaching agent. The furnish composed of wood containing pulp. Three Process variable were analyzed: temperature, NaOH and H20 2 charges. It was found that the brightness could be improved upto 58% ISO to 62% ISO depending on chemical charge concentration with a single stage H20 2 bleaching. If this gain is acceptable then the ONP/OMG at the ratio 80/20 would not require another bleaching stage after deinking stage. Bleaching Waste paper Recycling Kolehmainen, Heikki, Chairperson Nazhad, Mousa M., Examination Committee Viljakainen, Esa, Examination committee Government of Finland I AIT Fellowship, Scholarship donor Asian Institute of Technology. Research studies project report ; no. PP-03-8 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B08467 .b11946520 mnait u 240423 0 041105 m a u 0 mnait mnait mnarc 20 22 40 Barcode : 30050120932396 CREATED : 2004-05-11 RECORD # : i12424845 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120720650 CREATED : 2012-10-19 RECORD # : i1270667x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160107289 CREATED : 2016-04-20 RECORD # : i12941001 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 12888 12888 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no.PP-03-8 30050120932396 2026-08-17 17:16:13 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 0 AIT RSPR no.PP-03-8 30050120720650 2026-08-17 17:16:13 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT RSPR no.PP-03-8 30050160107289 2026-08-17 17:16:13 2026-08-17 40