www.futurenviro.es | Noviembre-Diciembre November-December 2021 33 EDAR de Bahr Al-Baqar (Egipto) | Bahr Al-Baqar WWTP (Egipto) Post-cloración La dosificación de cloro gaseoso se realiza mediante 16 cloradores automáticos con caudales comprendidos entre 2,00 - 20,00 kg/h, y 2 bombas de refuerzo de agua de inyección tipo centrífuga de 101,00 m3/h de caudal unitario a 55,00 mca, es decir, un grupo de refuerzo por cada ocho cloradores automáticos. Regulación del pH del agua tratada antes de la cámara de contacto Se han instalado 10 (8+2) bombas dosificadoras, dos en standby, con un rango de dosificación entre 60 - 600 l/h y una altura diferencial de 60 mca, 12 depósitos de almacenamiento de productos químicos de 50 m3 de capacidad unitaria y dos (2+2) bombas de trasiego de 40 m3/h de caudal unitario y 10 mca. LÍNEA DE FANGOS Describimos el sistema de tratamiento de lodos y fangos, explicando los procesos y operaciones unitarias. La recirculación interna de los fangos decantados entre el sedim entador de láminas y el cabezal de cada tanque de floculación meFlocculation of the raw water in the flocculation chambers is carried out by dosing anionic polymer. The system is designed with 48 (32+16) helical screw dosing pumps, sixteen on standby (one per subline), with a unitary dosage range between 70 - 700 l/h; and 16 compact automatic continuous-mode production units, i.e., four units for each of the four water treatment lines, each with a unitary capacity of 1,500 l/h. Pre-chlorination Chlorine gas is dosing using 32 automatic chlorinators, i.e., 8 units for each of the four water treatment lines, with a flow range between 7.00 - 70.00 kg/h, and 8 centrifugal water injection booster pumps, each with a capacity of 273.00 m3/h at 56.93 w.c.m, i.e., 2 booster pumps for every 8 automatic chlorinators. Post-chlorination Chlorine gas is dosed using 16 automatic chlorinators with a flow range between 2.00 - 20.00 kg/h, and 2 centrifugal water injection booster pumps, each with a capacity of 101.00 m3/h at 55.00 w.c.m, i.e., 1 booster pump for every 8 automatic chlorinators. pH regulation of the treated water before the contact chamber The system is designed with 10 (8+2) metering pumps, two on standby, with a dosage range between 60 - 600 l/h and a differential head of 60 w.c.m.; 12 50 m3 chemical storage tanks and two (2+2) transfer pumps with a flow rate of 40 m3/h at 10 w.c.m. SLUDGE LINE The following is a description of the processes and unitary operations that comprise the sludge treatment system.
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