Water Supply Vol 2 No 4 pp 145–150 © IWA Publishing 2002
Evaluation of a package plant for small communities in Mexico
T. Pavón Silva*, S.G. Hoyos** and C. Chávez Guerra***
*Facultad de Química UAEMex. Paseo Colón y Paseo Tollocan s/n Toluca Estado de México (E-mail: tbps17@coatepec.uaemex.mx). Centro Interamericano de Recursos del Agua (CIRA-UAEMex). Km 14.5 carretera Toluca Ixtlahuaca. Estado de Mexico (E-mail: segh@coatepec.uaemex.mx)
**Centro Interamericano de Recursos del Agua (CIRA-UAEMex). Km 14.5 carretera Toluca Ixtlahuaca. Estado de Mexico (E-mail: segh@coatepec.uaemex.mx)
***Facultad de Química UAEMex. Paseo Colón y Paseo Tollocan s/n Toluca Estado de México (E-mail: tbps17@coatepec.uaemex.mx)
ABSTRACT
The design and operation of floc blanket clarification plant, embodying coagulation, flocculation and floc blanket sedimentation is still very much an art, mainly because there has been no adequate scientific explanation of the mechanisms of the floc blanket sedimentation process. This study aims to provide an explanation based on the floc blanket formation with CPL (hydroxyl chlorine of aluminium) coagulant. The theoretical parameters results were: Gcoagulation: 1,500 s-1; Gflocculation: 397 s-1, and for sedimentation G θc 2476.8. The solid removal in the floc blanket was 65.28% expressed by residual turbidity. The water quality obtained at the end of the treatment satisfied the values of official Mexican standards.
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