A very wide range of activated carbon vessels GAC pressure vessels ranging from 900 litres to 28,000 litres for water treatment.
- Intregral pressure relief and anti-syphon piping (Cornelsen vessels);
- Rapid mobilisation;
- Highly efficient treatment solution;
- Suitable for a very wide range of hydrocarbons and chlorinated hydrocarbons;
Connected via either rigid or flexible piping, aqueous phase GACs are used for the adsorption of dissolved phase organic contaminants. Subject to the type of contaminants, adsorption efficiencies can often be very high indeed. Cornelsen can help specify the most appropriate carbon product and indeed undertake a cost benefit analysis to consider whether in fact and Air Stripper system may be more cost effective. Removal of suspended solids and any NAPL prior to the GAC vessels is essential for the most cost effective and efficient use of activated carbon
For construction site de-watering, it is the suspended solids which typically generates the most operational and maintenance requirements and for which particulate filtration is highly recommended. Check out our Vortex Advanced Media filters.
Use a second vessel in series with the first. This has to advantages: 1) as breakthrough occurs from the first vessels (at levels above the discharge consent) the second vessel prevents inadvertent discharge exceedance; and 2) Even though discharges may exceed the consent level, there is likely to still be significant capacity in the first vessel to adsorb more contaminants. The second vessel allows the operator to make full use of the carbon in the first vessel.
sizing of carbon vessels depends on flow rate (the hydraulic capacity of the vessel), contaminant type (the residence time through the vessel depends on the nature of the contaminant) and the expected mass recovery from the ground. High mass recovery expectations can sometimes justify larger vessels than the flow rate might require, in order to reduce the frequency of carbon changing (and thus reduce costs)