Sludge properties

This study investigates the effect of cationic polyelectrolytes on the final properties of synthetic and activated sludge. Synthetic sludge was prepared according to established procedures. Activated sludge was produced in a labscale, continuous-flow reactor which was fed with live activated sludge

Tanning of hides and skins to convert them into leather can have a considerable environmental impact. Wastewater treatment technology can successfully purify leather wastewater. The first part of this research investigated the influence of Al2(SO4)3 concentration on the velocity of tannery wastewate