Synthetic Precipitation Leaching Behavior of As, Cd, Cr, Pb and Zn in Contaminated Soil Stabilised and Solidified (S/S) using Cement and Sugarcane Bagasse Ash
MLA Style: Mohamad Azim Mohammad Azmi, Saiful Azhar Ahmad Tajudin, Ahmad Tarmizi Abdul Karim, Shahiron Shahidan, Nor Baizura Hamid, Mardiha Mokhtar, Sharifah Salwa Mohd Zuki "Synthetic Precipitation Leaching Behavior of As, Cd, Cr, Pb and Zn in Contaminated Soil Stabilised and Solidified (S/S) using Cement and Sugarcane Bagasse Ash" International Journal of Engineering Trends and Technology 68.11(2020):122-128.
APA Style:Mohamad Azim Mohammad Azmi, Saiful Azhar Ahmad Tajudin, Ahmad Tarmizi Abdul Karim, Shahiron Shahidan, Nor Baizura Hamid, Mardiha Mokhtar, Sharifah Salwa Mohd Zuki. Synthetic Precipitation Leaching Behavior of As, Cd, Cr, Pb and Zn in Contaminated Soil Stabilised and Solidified (S/S) using Cement and Sugarcane Bagasse Ash International Journal of Engineering Trends and Technology, 68(11),122-128.
Soil remediation uses the Stabilisation and Solidification (S/S) method is widely used because of its higher rate of treatability using cement and other sustainable alternative materials. one of the important parameters when measuring the effectiveness of remediation is through the leaching test. Therefore, this study is conducted to evaluate the Synthetic Precipitation Leaching Procedure behavior (SPLP) of contaminated As, Cd, Cr, Pb, and Zn soil. The SPLP testing is conducted according to US EPA Method 1312 in SW-846. The samples containing solids and liquids are handled by separating the liquids from the solid phase, and the solids are then extracted with a diluted sulfuric acid/nitric acid solution. A liquid-to-solid ratio of 20:1 by weight is used for an extraction period of 18±2 hours. After extraction, the solids are filtered from the liquid extract and analyzed using ICP-MS. Results indicated that when SCBA was added to OPC content in soil samples, less heavy metal was leached from the S/S sample. On average, the satisfying result was shown by samples containing 10% OPC + 10% SCBA where reduction of heavy metals in final leachate is more than 90% for As, Cd, Cr, Pb, and Zn. In conclusion, a significant study shows that the combination of cement and SCBA can improve leachability quality through effective remediation methods.
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Stabilisation and solidification, contaminated soil, cement, SCBA, SPLP