TY - JOUR TI - A method for the removal of chromium from tanned leather wastes AU - Poulopoulou, V.G. AU - Katakis, D. AU - Vrachnou, E. JO - JOURNAL OF THE AIR AND WASTE MANAGEMENT ASSOCIATION PY - 1998 VL - 48 TODO - 9 SP - 846-852 PB - SN - 1047-3289 TODO - 10.1080/10473289.1998.10463735 TODO - Chromium; Collagen; Crosslinking; Leather; Removal; Tanning, Chromium-tanned leathers; Supramolecular bridging, Industrial waste treatment, chromium, article; cross linking; hazardous waste; hydrolysis; leather industry; priority journal; protein binding; recycling; solid waste; waste disposal; waste management; water content TODO - The separation of Cr(III) from collagen in chromium-tanned leather (wet-blue) is achieved by a combination of the protein (collagen) stabilization (protective cross-linking) and a subsequent labilization of the Cr(III) species bound to the protein. During the separation collagen retains the tertiary triple helical and higher (fibril) structures. The model proposed for the protective cross-linking involves inter- rather than intramolecular bridging, that is, a supramolecular bridging. The process of chromium removal takes place in a restricted aqueous environment, and it can be characterized as semihomogeneous or semiheterogeneous. © 1998 Air and Waste Management Association. ER -