Study on the migration patterns of antibiotics in charcoal application soils under different temperatures

Prediction and management of soil antibiotic contamination issues have gained popularity in recent years. In order to understand the effect of activated carbon on the migration of antibiotics in soil at different temperatures, the vertical migration mechanism of oxytetracycline hydrochloride in charcoal soil was studied. Based on soil column test and numerical simulation, the results indicated that adding low content of activated carbon into soil can obviously enhance the adsorption of antibiotics in soil and inhibit the migration of antibiotics in soil. Hydrus-1D software was used to run numerical simulations, with the adsorption partition coefficient having the most impact on the outcomes. The adsorption distribution coefficient is corrected by theoretical value and inversion value, the value of \({\phi }\) is 0.88.