Lateritic soil was treated with 0, 4, 8, 12 and 16% rice husk ash (RHA) by dry weight of to determine its consolidation properties. Test carried out include; particle size distribution, specific gravity, compaction test varying compactive efforts (British Standard Light (BSL), West African (WAS) as well British Heavy (BSH)) test. Samples for were compacted then cured 7, 28 56 days; subjected on...

Rice husk (RH) is one of the most abundant agricultural wastes, but can be identified as a useful bio resource. Gonabaru, Kahawanu, Patchaperumal, Dahanala and Suwandel are five immerging traditional rice varieties, competing with genetically improved in Sri Lankan market. Ash content RHs varieties (>20.0%) was comparatively higher than rice. It that additional acid washing step essential to...

Coconut husk fibre and rice straw were found to be able to remove significant amount of Cr (III) ions from aqueous solutions. Its removal is a function of pH and concentration. The optimum pH range for maximum uptake is between 4 and 6 for both substrates. The adsorption capacity was found to be 0.55 and 0.30 millimole Cr (III) / g substrate for coconut husk and rice straw respectively. The ads...

Adding catalysts such as boric acid into biomass is a flexible method to achieve high biochar yield with low carbon emission levels. This work is directed towards investigating the effects of boric acid content on biochar yield, composition, and property through a two-step pyrolysis of rice husk. The results showed that biochar yields, compositions, and properties were associated with the amoun...