Synthesis and Performance of PAFS Coagulant Derived from Aluminium Dross

Polymerised aluminium ferric sulphate (PAFS) was prepared from dross as a coagulant in wastewater treatment. The effects of leaching time, temperature, and sulfuric acid concentrations on the turbidity removal were investigated, optimum conditions determined using response surface methodology. results showed that PAFS preparation at time 60 minutes, temperature 65°C, concentration 1 mol/L. Furthermore, experiments performed to investigate effect dosages under conditions, settling initial pH efficiency. As result, it found coagulation for coagulants 15 dosage 0.5g, raw water 8. Under these efficiency 91.45%. purpose this study possibility utilisation agent Therefore, can be concluded by metal oxides is an effective coagulant.