In tropical areas, palm oil production generates significant amounts of waste, including kernel shells. The use this waste in the civil engineering sector, presents a very challenging task. present study, lateritic soil (A-2 GTR classification and A-7-6 (9) HRB classification) reinforced with shells is considered. order to improve their performances, these materials are mixed using Fuller’s par...

In this study, waste ash was utilized as a pozzolanic material in blended Portland cement in order to reduce negative environmental effects and landfill volume required to dispose of waste ash. The influence of waste ash, namely palm oil fuel ash, rice husk ash and fly ash on compressive strength and sulfate resistance in mortar were studied and evaluated by some accelerated short-term techniqu...

The objective of this study was to improve the method for determining chlorpyrifos, an organophosphorus insecticide, in various palm oil matrices. Chlorpyrifos was separated from the oil matrices using acetonitrile extraction and then subjected to the solid phase extraction (SPE) clean-up process. A silica-based SPE was used for the clean-up process. Quantification of the extracted chlorpyrifos...

Oil palm biomass, which includes fronds of oil leaves, fiber and kernel shells, empty fruit bunches, liquid waste from palm, other mill wastes, can pose significant environmental hazards. Solid have the highest potential for composting. As a result, goal this study is to determine composting features aerobic-anaerobic systems in bunkers. The research was conducted at PT Eastern Sumatra Indonesi...