WASTEWATER
By Rick LallishAnhydrous or quicklime is great for pH-adjusting and coagulating solids. What must be done before it can be used?A. It has to be properly mixed with a polymeric flocculant.B. It must be slaked (mixed with water).C. It has to be stored under a heating source if the temperature falls below 30 degrees F.D. It has to be agglomerated with a mixing compound.Answer: B. Quicklime is an excellent chemical for solids coagulation and pH adjustment. It is relatively inexpensive and easy to use. The main disadvantage is that it is difficult to store since it absorbs moisture and cakes solid. It also must
