Tenders Are Invited For Machinery And Apparatus For Filtering Or Purifying Water – 2006/2024 Supply, Install ... in Spain

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Machinery And Apparatus For Filtering Or Purifying Water – 2006/2024 Supply, Installation And Commissioning Of Chlorine Dioxide Generation Equipment In Giahsa Dwtps. According To What Is Stated In The Technical Report Prepared By The Person Responsible For The Contract: [Sic] It Is Necessary To Modify The Disinfection Processes Of The Treated Water In The Dwtps Towards Processes That Substantially Reduce The Formation Of Trihalomethanes And Other Disinfection Byproducts. It Is Known That Disinfectant Chlorine, When Reacting With Humic And Fulvic Substances Contained In Organic Matter And Bromides Present In Water, Generates A Series Of Unwanted Toxic Compounds Such As Trihalomethanes, Haloacetic Acids, Haloacetonitriles, Halonitromethanes, Chloral Hydrate, Chloropicrin, Halofuranones, Haloacetamides, Among Others. Chlorine From Sodium Hypochlorite Also Generates Chlorates. Therefore, When Faced With Raw Water With A High Concentration Of Precursors, It Is Advisable To Avoid The Chlorine Disinfection System. The Disinfection System With Chlorine Dioxide Is Proposed That Prevents The Generation Of Thms And Other Disinfection Byproducts, Although It Is Not Free Of Them, Forming Chlorites And Chlorates That Must Be Controlled In The Treatment Process.

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