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JSIR Vol.67(04) [April 2008] >


Title: A study on polyethylene microencapsulation of textile sludge
Authors: Raji, R Jeevitha
Kanmani, S
Keywords: Compressive strength
Dyes
Heavy metals
Leachability
Textile sludge
Issue Date: Apr-2008
Publisher: CSIR
Abstract: An attempt has been made to encapsulate heavy metals and dyes present in textile sludge using low density polyethylene (LDPE) and assess usability of encapsulated product for building construction. Sludge samples were encapsulated into LDPE with calcium oxide (additive) at four different proportions (35, 40, 50 and 60 %) of sludge. Encapsulated cubes were formed and then tested for compressive strength. Maximum compressive strength of cubes (size, 7.06 cm) containing sludge (50%) for sample 1 (21.07 N/mm²) and sample 2 (17.55 N/mm²) was more than that of standard M15 mortar cubes. Encapsulated product could be recommended for use in the construction of non-load bearing walls. TCLP study revealed that leaching of dyes and heavy metals (Cu, Ni, Pb and Cr) has been effectively reduced after encapsulation process.
Page(s): 319-323
ISSN: 0022-4456
Source:JSIR Vol.67(04) [April 2008]

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