Elimination of viruses and indicator bacteria at each step of treatment during preparation of drinking water at seven water treatment plants.... Samples were obtained at each level of treatment: raw water, postchlorination, postsedimentation, postfiltration, postozonation, and finished (tap) water....
Impactof uv/h2o2 pre-oxidationon the formation of haloacetamides and other nitrogenous disinfectionbyproducts during chlorination... The objectiveof this study was to examine the potential of pretreatment with UVirradiation, H2O2 oxidation, and a UV/H2O2 AOP for minimizing the formation of HAcAms,as well as other emerging N-DBPs, during postchlorination....
Original: spanish failures and problems of urban disinfection... The problems and failures of disinfection begin at the catchment with the quality of the source, which often needs prechlorination to reduce faecal contamination; postchlorination eliminates the bacteria remaining after treatment....
Modeling of chlorination process for bega river waterAbstract: In this paper we have studied the influence of prechlorination and postchlorination on consumption and chlorine demand, the influence of prechlorination on some parameters of coagulation process....
