Trazando la biografia de una colección fotográfica sobre América Latina en la...PHotoEspaña
Ponencia presentada por Sagrario Berti para el III Encuentro de Críticos e Investigadores en Valparaíso celebrado los días 10, 11 y 12 de noviembre de 2011.
Trazando la biografia de una colección fotográfica sobre América Latina en la...PHotoEspaña
Ponencia presentada por Sagrario Berti para el III Encuentro de Críticos e Investigadores en Valparaíso celebrado los días 10, 11 y 12 de noviembre de 2011.
Funneling the carbon into a conical-shaped pocket at the bottom of the vessel disrupts the even progress of the mass transfer zone as it descends through the bed. It constricts the zone into a small area, thereby promoting early contaminant breakthrough.
The conical vessel internal design specs place an inverted cone waffled with aeration holes at the bottom of the vessel. This funnels the media bed into an underdrain that allows the spent carbon to flush from the vessel without leaving clumps of spent media in the corners at the bottom of the tank. However, plastic nozzles fitted to each aeration hole often break off and come loose. This causes carbon packed into the cone to spill into a catch basket that resembles an inverted witch’s hat. These nozzle fittings can only be repaired during changeout procedures when the entire vessel is emptied of media.
