Water treatment by split-stream addn. of chemicals to kill germs and remove organic substances

摘要

Water treatment process comprises (a) determining the amt. of organic contaminants in the water by UV spectroscopic determn. of phenylalanine, tyrosine and/or tryptophan at 250-290 nm and/or by measuring the light scattering of the contaminants at 400-650 nm; (b) splitting the water into two streams; (c) adding different chemicals to each stream in amts. depending on the contaminant concn. measured in step (a), where the chemicals are selected to have a desired action when mixed; and (d) introducing the streams into a mixing chamber under flow conditions such that turbulence with a Reynold's number (Re) of at least 4000 is established in at least one region of the mixing chamber.