A New Hazardous Solid Waste Detoxication Method: Semi-solid Fenton Process (SSFP)

摘要

Semi-solid Fenton process (SSFP) was firstly conducted on hazardous solid waste detoxication. Batch tests, Box–Behnken designs, and response surface methodology were applied to optimize the key factors including the pH, the initial Fe(II) content, and the liquid-to-solid ratio (L/S). It shows that the optimal pH, the initial Fe(II) content, and the L/S in SSFP are 3.5, 0.062 mol kg−1 dry weight and 1.77, respectively. Correspondingly, the removal efficiencies of ONA and ArNH₂ are 98.5 ± 0.5% and 100% which agree well with the results of an established polynomial model. It suggests that SSFP is an efficient and environment-friendly method for hazardous solid waste detoxication without wastewater generation.