Abstract

• Operational conditions and water quality control Fe(II)/KPS acceleration • H3NOH+ converts Fe(III) to Fe(II), preserving hydroxyl and sulfate radicals • Fe(II)/KPS/H3NOH+ superior degradation in NMW, SEWTP, and river water samples • Study showcases DNN's potential to optimize and understand intricate processes • Optimal DNN for pararosaniline removal using 2 layers with tanh activation