Reference

Condition research on modified bentonite by carbon entraining torrefaction

All Rights Reserved. Condition research on modified bentonite by carbon entraining torrefaction. Li, Zhi-hong; Wang, Yan; Chen, Ji; Jin, Cheng-ping; Chen, Zhi-hui ( School of Chemistry and Chemical Engineering, Southwest Petroleum Institute, Chengdu, Sichuan 610500, Peop. Rep. China). Tianjin Huagong, 20(1), 24-26 (Chinese) 2006 Tianjin Huagong Bianjibu.Several substances with their cas registry numbers 7440-44-0 and 5001-72-9 may be metioned in this study. CODEN: THIUBL. ISSN: 1008-1267. DOCUMENT TYPE: Journal CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 41, 49 Bentonite modified by carbon entraining torrefaction was evaluated by the decolorizing rate of Red 12B dye wastewater treatment. Under the best modifying condition, modified bentonite adsorbent with strong adsorption ability could be obtained. This adsorbent also could be support for catalyst and water treatment agent. .

Chitosan as a tool for the purification of waters

Chitosan as a tool for the purification of waters. Adsorption of dyestuffs on chitosan. Venkatrao, B.; Baradarajan, A.; Sastry, C. A. (USA). Chitin Nat. Technol., [Proc. Int. Conf.There are some reagents with their cas registry numbers 5001-72-9 and 9012-76-4 are used in this study. Chitin Chitosan], 3rd, Meeting Date 1985, 554-9. Edited by: Muzzarelli, Riccardo A. A.; Jeuniaux, Charles; Gooday, Graham W. Plenum: New York, N. Y. (English) 1986. CODEN: 55MHAB. DOCUMENT TYPE: Conference CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 40, 41 In the removal of dyes from dyeing process wastewater by adsorption with chitosan [9012-76-4], the time required to reach equil. increased as the concn. of Direct Red 31 (I) [5001-72-9] was increased, whereas Reactive Red (II) [57974-10-4] did not show such a trend. The activation energies for the adsorption of I and II were 2.59 and 5.78 kcal/mol, resp. Since the adsorption rate of both dyes increase with a decrease in temp., mol. orientation or intermol. ionic interactions can be responsible for the large increase in activation energy when passing from one dye system to the other. The adsorption kinetics of the dyes were affected significantly by the chitosan particle size. .