Pressure filtration unit GAC

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Granular Activated Carbon Pressure Filters Overview: WesTech granular activated carbon (GAC) contactors are an effective means for removal of various-molecular-weight contaminants from aqueous solutions. They are especially suited for the removal of dissolved organic compounds responsible for poor taste and odor in drinking water, as well as removal of chlorine from industrial waters. WesTech GAC contactors can be supplied in an open-top gravity system or, more commonly, in pressure vessels. They are typically designed with a conical underdrain for convenient GAC replacement. These filters are sized according to the contact time required for contaminant removal and desired media replacement frequency. Filter piping and valving for multiple units can be arranged to easily change flow paths between parallel flow, series (lead/lag or daisy chain) flow, or single-unit flow patterns. Filters are typically backwashed only once upon new media installation, and the media usage front is then monitored via sample taps to allow for anticipation of media replacement. Vertical / Horizontal Pressure Filters Overview: WesTech pressure filtration systems are designed for both municipal and industrial water treatment where the removal of suspended solids such as particulates, iron, manganese, free oils, mill scale, and other precipitates in ground or surface water is required. Pressure filters are commonly placed after WesTech clarification equipment. When used as pretreatment equipment, these filters will prolong the life and efficiency of WesTech granular activated carbon, ion exchange, and membrane systems.