Refractory petrochemical wastewater treatment by KSO assisted photocatalysis.

The KSO assisted photocatalytic system was applied for treating refractory petrochemical wastewater. Co-TiO/zeolite catalyst synthesized by sol-gel method was demonstrated to possess a good activity towards mineralization of the refractory petrochemical wastewater in the KSO assisted photocatalytic system. Orthogonal design was employed to optimize the reaction parameters, according to the results, KSO dosage was the most prominent impact factor.

Removal of vanadium from vanadium-containing wastewater by amino modified municipal sludge derived ceramic.

In this work, an amino modified porous ceramic derived from municipal sludge was synthesized for the adsorption of vanadium (V) from wastewater. In this approach, a maximum vanadium (V) removal of 99.8% can be achieved by using 800 g adsorbent with a height of 800 mm when the initial concentration of vanadium (V) was 50 mg/L, pH was 4, flow rate was 5 L/h.