6 Principles of Water Purification Crossword Puzzle

QUESTIONS LIST: sedimentation: filtration and _ are methods of clarification, millbank: type of bag used for filtration, deviation: chlorine _ is when the chlorine attacks the larger pieces of sediment before the smaller pieces, normal: the contact period would be 15 mins under what circumstances?, detaste: the process of removing chlorine from water to make it palatable, clarification: second principle, hypochlorite: calcium _ 65% is the chemical used for disinfection, thiosulphate: sodium _ is the chemical used to remove chlorine from water, eight: what is the initial dose of chlorine in ppm?, quantity: when selecting an appropriate water source, we are looking for quality and?, five: how much residual chlorine do we want when testing (ppm)?