What affect will a decrease in temperature have on the denitrification process? A) Only affects biochemical nitrification B) Increases the denitrification process C) Decreases the denitrification process D) Only affects nitrifying bacteria in anaerobic selectors Show the answer... C) Decreases the denitrification process The...
Which of the following disinfectants will lower the water’s pH? A) Sodium hydroxide B) Calcium hypochlorite C) Chlorine gas D) Sodium hypochlorite Show the answer... C) Chlorine Gas When mixed with water, chlorine gas causes a chemical reaction which produces hypochlorous acid, resulting in a lower...
A detailed evaluation and/or inspection of a source of water supply and all conveyances, storage treatment and distribution facilities to ensure protection of the water supply from all pollution sources is called a A) Source Wwater Survey B) Raw water survey C) Pollution...
Water Treatment and Distribution operators deal with pH on a daily basis, so surely we know what it is, right? In reality, very few operators understand pH. Let’s face it, for most of us our understanding of pH is limited...