Waste Water Treatment Coagulation and Flocculation – Importance of Mixing Energy

We were recently involved in an industrial waste water project for the removal of Molybdenum. We conducted jar testing with pH adjustment, addition of coagulant and a flocculent along with a body feed of bentonite clay. We were successful at clarifying the waste water and removing the molybdenum in the jar testing. The jar testing went so easily, that we were surprised when it failed on a pilot scale. The pilot plant was a continuous flow treatment system with three 36 gallon CSTRs (continuously stirred tank reactors) followed by simple filtration. Chemicals were added to the first tank, a rapid ... » Read More