Musta, Baba and Kassim, Khairul Anuar and Salim, Mohd. Razman and Ismail, Z'aba (2004) An investigation of heavy metals retention in lime stabilised soil. Borneo Science (15). pp. 1-13. ISSN 2231-9085
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Tile retention ofheavy metals namely Cr and Zn ill unstahilised and lime stabilised soil, is investigated by means ofleaching test. The soil samples were collected from tile weathered sedimentary rock of Crocker Formation from Telipok. Sabah. The Cr and 2n analysis conducted in unstabilised and lime stabilised soiis samples ajler leaching test shows that both ofthe heavy metals are retained at the top part ofthe soil columns t.e. ulthe depth of 1.0 em. The concentration of Cr and Zn decreased with increasing soil column depth. The lnu:hate analysis shows that Cr ami Zn in unstabilised sample achieved the breakthrough curve after4 pore volume (PV) ofleaching. On the other hand. very low concentrations ofCrand Zn were detectetl ill the leachate ufthe lime-stabilised soil sample. Thi~' indicates that Cr: and Zn are significantly being retained ill lime stabilised sample compared to 'he unstnhilised sample. The top layer of the stabilised sample shows the dissolution of ccmcntitious minerals andformation of channels. However; at the bot/om layer; microstructure (Jllal)'.~i.~ .I'how,~ the ccmcntitious minerals were ftoccutated. linked, and clogged with the fine particles inpore spaces
|Uncontrolled Keywords:||heavy metals, retention, lime stabilisation|
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering|
|Deposited By:||Nurul Asilah Mahmood|
|Deposited On:||18 Sep 2012 02:14|
|Last Modified:||13 Feb 2017 01:44|
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