Active Carbon Filter CONTIFLOW® GAK

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Huber Technology Inc.

Riyadh, Saudi Arabia

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A simple method for removing traces of chemicals (fourth stage of treatment)
Cleaning doesn't require any shutdowns.
Utilizing the activated carbon again

One of the most important points of entry for micropollutants into surface waterways is municipal sewage plant effluents. Many of these so-called trace materials can build up in the environment, pose a risk to human health and the environment, and are not easily biodegradable.
In order to effectively remove trace substances (fourth treatment stage), HUBER has developed the HUBER Active Carbon Filter CONTIFLOW® GAK. When combined with the HUBER Pile Cloth Media Filter Rotafilt® or the HUBER Sandfilter CONTIFLOW®, this filter set provides an optimally matched process solution. Nonetheless, the HUBER activated carbon filter CONTIFLOW® GAK finds a rapidly expanding field of application in industrial wastewater treatment as well. Adsorptive treatment stages with the HUBER Active Carbon Filter CONTIFLOW® GAK are the preferred technique, particularly when it comes to eliminating dissolved organic COD chemicals and pollutants to fulfill tougher discharge regulations.
Style and Purpose
Granulated activated carbon (GAC) is used as the filler in the HUBER Active Carbon Filter CONTIFLOW® GAK, an upflow active carbon adsorber. It is modular in design and can be ordered as a stainless steel tank or, if preferred, as concrete.
The CONTIFLOW® GAK HUBER Active Carbon Filter is made to run continuously. This indicates that the activated carbon may be cleaned without requiring feed interruptions. Adsorbed on the broad inner surface of the activated carbon are dissolved organic particles, such as trace compounds, as the inflow slowly flows through the bed of activated carbon from bottom to top. A weir in the upper portion of the filter allows the cleaned water to exit.
The activated carbon is gradually moved from the hopper's bottom into the top scrubber as the pressure decreases, where it is cleansed of any remaining particle matter. A tiny partial flow—referred to as "wash water"—is used to separate the particles.
After being cleared of solids but still partially loaded with micropollutants, the activated carbon settles back onto the filter bed, forming an internal circuit of activated carbon. The loading on the carbon's interior surface gradually increases as operation goes on.

Applications of Active Carbon Filters

Adsorption of trace materials in the fourth stage of advanced wastewater treatment
After ozonization, biological secondary filtering (BAC filtration) is used to remove trace contaminants.
Dissolved COD compounds are removed during the treatment of industrial wastewater (process wastewater, recirculation water).

Advantages of an Active Carbon Filter