Calgon Carbon - Model 8 -Modular Carbon Adsorption System

The Model 8 system is delivered as two adsorbers and a separate compact center piping network and interconnecting piping requiring minimal space and field assembly. The pre-engineered Model 8 design assures that adsorption system functions can be performed with the system as provided. The design has the benefit of Calgon Carbon`s extensive expertise and has been proven in numerous applications. The engineering package can be provided quickly and the system expedited through Calgon Carbon`s production capabilities.

The process piping network for the Model 8 offers operation of the two adsorbers in parallel or two-stage series flow, with either adsorber in the lead position. The piping can also isolate either adsorber for carbon exchange or backwash operations, while maintaining flow through the other adsorber. In addition, the Calgon Carbon underdrain design provides for efficient use of the carbon through uniform collection of water at the bottom of the bed; and even distribution of backwash water to minimize carbon bed disturbance.

The Model 8 system is designed for use with Calgon Carbon`s closed loop carbon exchange service. Using specially designed carbon transport trailers, the spent carbon can be removed from the adsorber via a pressurized carbon-water slurry; and fresh carbon refilled in the same manner. This closed loop transfer is accomplished without exposure of personnel to either spent or fresh carbon. Calgon Carbon can also manage the disposition of the spent carbon; typically returned to Calgon Carbon for reactivation avoiding the need for the site to arrange for disposal.

Carbon Adsorbers

• Carbon steel ASME Code stamped pressure vessels
• Internal vinyl ester lining (25-35 mils) to protect carbon steel surfaces,
• Suitable for potable water and most liquid applications
• Internal underdrain with polypropylene slotted septa for Water collection and backwash distribution

Standard Adsorption System Piping

• Schedule 40 carbon steel piping with cast iron fittings
• Cast iron or steel wafer butterfly valves in process piping
• Polypropylene lined steel pipe for carbon discharge pipe
• Full bore stainless steel ball valves for carbon fill and discharge piping
• Pressure gages to measure pressure drop across system and each adsorber
• Rupture discs open to each vessel for emergency pressure relief

System external coating

• High solids epoxy paint system

Typical system options

• In-bed water sample collection probes
• System skid, shipped separately, upon which system components can be assembled