PMID- 23892160 OWN - NLM STAT- MEDLINE DCOM- 20140401 LR - 20221207 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 260 DP - 2013 Sep 15 TI - Kinetic modeling on CO(2) capture using basic oxygen furnace slag coupled with cold-rolling wastewater in a rotating packed bed. PG - 937-46 LID - S0304-3894(13)00452-4 [pii] LID - 10.1016/j.jhazmat.2013.06.052 [doi] AB - In this study, direct and indirect carbonation of basic oxygen furnace slag (BOFS) coupled with cold-rolling wastewater (CRW) was carried out via a rotating packed bed (RPB). The solid products were qualitatively characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) and quantitatively analyzed with thermogravimetric analysis (TGA). The leachate was analyzed with inductively coupled plasma-optical emission spectroscopy (ICP-OES). The results indicate that the maximum achievable carbonation conversion (MACC) of BOFS was 90.7%, corresponding to a capture capacity of 0.277 g CO(2)/g of BOFS, by direct carbonation with CRW under a rotation speed of 750 rpm at 30 degrees C for 20 min. In addition, CO(2) mass balance among the gas, liquid, and solid phases within an RPB was well-developed, with an error less than 10%, to confirm the actual CO(2) capture capacity of BOFS with precision and accuracy. Furthermore, a reaction kinetic model based on mass balance was established to determine the reaction rate constant for various liquid agents (CRW and pure water). It was concluded that co-utilization of alkaline wastes including BOFS and CRW via the RPB is a novel approach for both enhancing CO(2) capture capacity and reducing the environmental impacts of alkaline wastes. CI - Copyright (c) 2013 Elsevier B.V. All rights reserved. FAU - Chang, E-E AU - Chang EE AD - Department of Biochemistry, Taipei Medical University, Taipei, Taiwan. FAU - Chen, Tse-Lun AU - Chen TL FAU - Pan, Shu-Yuan AU - Pan SY FAU - Chen, Yi-Hung AU - Chen YH FAU - Chiang, Pen-Chi AU - Chiang PC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130628 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 RN - 0 (Air Pollutants) RN - 0 (Industrial Waste) RN - 0 (Ions) RN - 0 (Waste Water) RN - 0 (Water Pollutants, Chemical) RN - 12597-69-2 (Steel) RN - 142M471B3J (Carbon Dioxide) RN - 7440-44-0 (Carbon) RN - H0G9379FGK (Calcium Carbonate) RN - S88TT14065 (Oxygen) SB - IM MH - Air Pollutants MH - Calcium Carbonate/chemistry MH - Carbon/chemistry MH - Carbon Dioxide/*chemistry MH - Construction Materials MH - Equipment Design MH - Hydrogen-Ion Concentration MH - Industrial Waste MH - Ions MH - Kinetics MH - Microscopy, Electron, Scanning MH - Models, Chemical MH - Oxygen/*chemistry MH - Steel MH - Temperature MH - Thermogravimetry MH - Time Factors MH - Wastewater MH - Water Pollutants, Chemical/*analysis/chemistry MH - Water Purification/*methods MH - X-Ray Diffraction OTO - NOTNLM OT - Accelerated carbonation OT - Mass balance OT - Mass transfer coefficient OT - Material balance OT - Reaction rate constant EDAT- 2013/07/31 06:00 MHDA- 2014/04/02 06:00 CRDT- 2013/07/30 06:00 PHST- 2013/01/25 00:00 [received] PHST- 2013/06/14 00:00 [revised] PHST- 2013/06/20 00:00 [accepted] PHST- 2013/07/30 06:00 [entrez] PHST- 2013/07/31 06:00 [pubmed] PHST- 2014/04/02 06:00 [medline] AID - S0304-3894(13)00452-4 [pii] AID - 10.1016/j.jhazmat.2013.06.052 [doi] PST - ppublish SO - J Hazard Mater. 2013 Sep 15;260:937-46. doi: 10.1016/j.jhazmat.2013.06.052. Epub 2013 Jun 28.