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http://dx.doi.org/10.4191/kcers.2014.51.4.317

Development of Grogged Clay Used Water-purified-sludge  

Jeong, Jae-Jin (Department of Materials Science & Engineering, Myongji University)
Lee, Yong-Seok (Department of Materials Science & Engineering, Myongji University)
Lee, Byung-Ha (Department of Materials Science & Engineering, Myongji University)
Publication Information
Journal of the Korean Ceramic Society / v.51, no.4, 2014 , pp. 317-323 More about this Journal
Abstract
People could not imagine living without tab water. However, the water filtering process at a purification plant used to produce tab water creates tons of sludge, which is generally wasted. This sludge waste consists of (1) mineral elements, such as sand, (2) organic materials, and (3) a coagulant, which agglomerates the two. As an enormous amount of sludge waste is generated every year, numerous studies have been carried out to identify how to deal with this problem. Currently, however, most of the sludge waste is directly discarded in landfills. In the present study, water-purified sludge waste received a heat treatment at $1300^{\circ}C$ and was then ground into particles to be used as a ceramic material. Next, the resultant particles were compounded with chamotte substitutes to produce grogged clay that is suitable for wheel-throwing ceramics. Consequently, the plasticity of the sludge waste decreased as the content of calcination increased. Thus, it is considered that wheel throwing is available only up to PBF-3. Thus, it is available for wheel throwing and has a high strength of 864 $kgf/cm^2$ with less than 0.2 percent of porosity and absorption ratio were displayed in PBF-2 at $1280^{\circ}C$ with 20 percent of calcination from the purified sludge. Therefore, the PBF-2 body produced in this study was considered to be capable of replacing grogged clay in the market.
Keywords
Recycling; Water-purified-sludge; Mullite; Grogged clay; Ceramic body;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
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