Keywords
Citation
(1998), "Adsorption of dioxin", Industrial Lubrication and Tribology, Vol. 50 No. 5. https://doi.org/10.1108/ilt.1998.01850ead.006
Publisher
:Emerald Group Publishing Limited
Copyright © 1998, MCB UP Limited
Adsorption of dioxin
Adsorption of dioxin
Keywords: Dioxins, Lubricants
One of the potential problem areas in the use of chlorinated additives in lubricants is the difficulty of disposing of chlorinated wastes. Incineration of chlorinated wastes under certain conditions can lead to the production of dioxins. In Japan, the Sumitomo Chemical Company, jointly with Nichimen Corp and Nihon Green Packs Co. Ltd, have developed a plastic film Suial Power that suppresses the discharge of toxic substances such as dioxin from incineration furnaces during fuel combustion. Suial Power is a translucent polyethylene film consisting of 30-40 per cent aluminium hydroxide given a special treatment. Combusting the film converts the aluminium hydroxide into activated alumina of large surface area, which adsorbs and immobilises the harmful substances generated in the combustion furnace. Experiments confirmed that as much as 60 per cent of dioxin at a density of 5ng/ml is removed. The heavy metals contained in the residual ash, when effused by rain water, are adsorbed and immobilised by activated alumina, so there is no danger of these seeping into underground water.
An article ("Film for ... in incineration furnaces") in New Technology from Japan (ISSN 0916-7978, Vol. 25 No. 11, February 1998, pp. 18-19) is available from Global Information on Science and Technology by quoting 23101P.