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Manufacture and Characterization of Interlocking Block Using Incineration Ash of Dyeing Wastewater Treatment Sludge  

권기홍 (영남이공대학 보건환경계열)
임우성 (㈜성일산업)
Publication Information
Journal of Environmental Health Sciences / v.30, no.2, 2004 , pp. 167-172 More about this Journal
Abstract
In this study, we carried out the research for the recycling potential of the dyeing wastewater treatment sludges as construction materials. The incineration ash of sludges were solidified as interlocking block in condition of sludge/cement ratio 2.5%, 5.0% and 10%, respectively. Those interlocking blocks were cured for 3days, 7days and 28days in ambient air condition, respectively. The results of this research were summarized as follows: The dyeing wastewater treatment sludges was below the Korea Leaching Limit. After incineration, the ash was manufactured as interlocking block. Bendable strength over 50kg$_{f}$/$\textrm{cm}^2$ suitable for interlocking block was obtained only when the sample was cured for 7days at sludge/cement ratio 2.5% and 5.0%. Hygroscopic ratio of interlocking block was above the Korea Industry Standard. We think that recycling of the incineration ash from dyeing wastewater treatment sludges to interlocking block will have high potential possibility.y.
Keywords
dyeing wastewater treatment sludges; incineration ash; interlocking block; bendable strength;
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