Effect of acidity on attenuation performance of sandy soil amended with granular calcium-magnesium composite

Utilising naturally contaminated soils and rocks is essential for significantly reducing geo-waste. However, there are no well-established concepts regarding the methods or countermeasures utilising these rocks, which would realise cost-effectiveness environmental safety. Therefore, several researches focusing on attenuation layer method have recently been undertaken. This involves installing an between materials ground to prevent contamination due capacity. A critical issue in layer’s design evaluate performance of material against target chemicals. Several important concerns questions need be solved when evaluating performance. One how acidic leachate might diminish material’s paper presents a soil amended with granular calcium-magnesium composite leachate. Batch column tests, employing arsenic solutions pH 2, 4 6, were applied its Using Freundlich parameter K as index, soil’s was determined improved by at least 40% after addition agent, even agent content 5%. The should similar if 6–4, although it reduce up ~30% < 4. Moreover, can buffer acid > 6. If buffers provides will assure that original ground’s capacity utilised. Considering this work’s findings, employed layer.