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INTRODUCTION FACTS ABOUT WATER Question 1 What impurities may be carried by water?
How are the various substances carried in the water?
How can the actions and reactions of the elements be followed?
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action added alkalinity aluminum anion antifoam batch blowdown boiler water boiler-feedwater boiler-water calcium and magnesium calcium carbonate calcium sulfate called carbon dioxide carbonic acid carryover cations caustic soda Chemical unit weight chemist coagulation color compounds concentration contain cracking cyclohexylamine deaerator demineralized deposits disodium phosphate dissolved oxygen dosage electrical elements end point equation exchanger feedwater ferric hydroxide film filter floc hardness heater heating plants hot water hot-water system hydrogen ion idle boiler impurities internal treatment ionized iron oxide less lime magnesium hydroxide makeup water metal mineral morpholine needed nitrate particles percent pipe pitting Potassium pounds precipitate prevent scale quebracho tannin question regenerated remove resin return lines salt sample scheme seam silicate soda ash sodium bicarbonate sodium chloride sodium hydroxide sodium sulfite soluble steam substances sulfuric acid tank tannin temperature test solution tion tube usually water carries water to form waterwall boilers zeolite zeolite softener