Whole-flow multi-barrier control system and method for aldehyde halide disinfection byproducts in drinking water

The invention belongs to the technical field of disinfection of drinking water and relates to a whole-flow multi-barrier control system and method for aldehyde halide disinfection byproducts. The method comprises main contents as follows: (1) the risk grades of the disinfection byproducts are judged according to a raw-water water quality risk early warning method; (2) a single technology or a combination of a plurality of technologies in methods including source reduction, generation inhibition, removal after generation and the like is adopted against to different risk grades; (3) when above treatment measures are adopted, the risks of the aldehyde halide disinfection byproducts are still uncontrollable and the generation of the aldehyde halide disinfection byproducts can be inhibited by adopting an ultraviolet or chlorine dioxide disinfection manner; and (4) a sand filter tank can be modified into a carbon sand filter tank or an ozone-biological activated carbon (O3-BAC) deep treatment technology is built wi