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AWWA REUSE52103
- Chlorine Disinfection of Advanced Primary Effluent for Reuse in Irrigation in Mexico
- Conference Proceeding by American Water Works Association, 01/01/2000
- Publisher: AWWA
$12.00$24.00
Untreated municipal wastewater contains microorganisms of fecal origin, such asbacteria, viruses, protozoans, and helminths, which are the principal agents ofinfectious diseases. In the Valley of Mexico, untreated wastewater is utilizedfor the agricultural irrigation of 90,000 hectares located to the north of MexicoCity in the Mezquital Valley. In order to meet regulations, the effluent must betreated. Although the removal of pathogenic microorganisms in conventionaltreatment systems has been well documented, little research has been done todetermine the efficiency of Advanced Primary Treatment (APT) coupled withfiltration and chlorine disinfection. This study analyzed the reduction ofmicroorganisms in a system composed of Advanced Primary Treatment (APT), sandfiltration and disinfection. The regrowth of bacteria was monitored after aprolonged period (48 hours). The measurements were undertaken in situ, in theprincipal sewer outlets of Mexico City in an APT pilot plant followed by a sandfilter and a chlorination tank. Includes 12 references, tables, figures.
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