Phytoremediation Of Kerosene-Contaminated Soil Using Vetivera Zizanoides And Ipomea Reptans Poir With Bioaugmentation And Eggshell Biostimulant Addition

The use of large amounts of kerosin has the potential for environmental pollution. The greatest attention has been paid to the environmental impacts of tanker accidents, pipeline leaks, and the use of kerosene as an asphalt extraction solvent. Spills of kerosene into the soil can harm the environment, threaten the life of microorganisms, affect the smell and taste of water in the soil. The purpose of this study is to examine the ability of Vetiveria zizanioides and Ipomea reptans Poir plants to reduce kerosene contaminated soils, and to analyze the effect of adding bioaugmentation and biostimulation on the reduction of kerosene contaminated soils. The research was conducted on a laboratory scale using spike soil. Phytoremediation was carried out using the addition of Bacillus subtilis bacteria as much as 10% v/v, and eggshell stimulants as much as 10% w/w. The analysis carried out was testing Total Petroleum Hydrocarbon (TPH), Total Plate Count (TPC), and measuring plant height and growth rate. The best TPH elimination percentage result was CS1 with a variation of Vetivera Zizainoides and Bacillus subtilis bacteria on H-15 of 70% with a TPH degradation rate of 632 mg/kg/day.