KEERTHANA P

NANDANA T V

AMEGHA V

SWARAG KOKKEN

Soil contamination caused by oil spills poses a serious environmental challenge, adversely affecting soil health, water quality, and biodiversity. This study investigates the use of wheat straw powder as a stabilizing agent for oil-contaminated soils, aiming to enhance their engineering properties and promote sustainable remediation. Wheat straw, an abundantly available agricultural residue, contains pozzolanic compounds that can react with oil-contaminated soil, thereby improving its performance. Laboratory tests including specific gravity, sieve analysis, Atterberg’s limits, water absorption, compaction, unconfined compression (UCC) test, hydrometer analysis, organic content, pH, and direct shear test were conducted on untreated and treated soil samples. Wheat straw powder was incorporated into the soil in varying proportions of 2%, 4%, 6%, and 8%, and the treated samples were monitored over a curing period of 7 days. The experimental results highlight that wheat straw powder significantly improves the strength and stability of oil-contaminated soils, demonstrating its potential as a sustainable, eco-friendly, and cost-effective solution for soil stabilization and environmental restoration.

Keywords: Wheat Straw Powder, Oil-Contaminated Soil, Soil Stabilization