Evoqua operates industrial kilns which can mitigate contaminants and reactivate carbon for reuse. It is a sustainable method for carbon adsorption and mitigates the greenhouse gasses emitted in the production of virgin carbon.
Evoqua operates industrial kilns which can mitigate contaminants and reactivate carbon for reuse. It is a sustainable method for carbon adsorption and mitigates the greenhouse gasses emitted in the production of virgin carbon.
Evoqua’s Reactivation programs process RCRA hazardous and non-hazardous liquid and vapor phase spent carbons. After inspection and acceptance, the spent carbon is heated to 1600°F to ensure proper reactivation. The cooled reactivated carbon is identified by lot numbers, sampled and analyzed in accordance with the Evoqua QA/QC program. This process assures the highest quality reactivated carbon. The entire state-of-the-art process is computer controlled and monitored, ensuring the facility meets or exceeds federal and state regulatory requirements.
Evoqua operates three U.S. based carbon reactivation facilities and is the only activated carbon services supplier with RCRA-permitted reactivation capacity servicing both the East and West Coasts.
A “Certificate of Reactivation” can be issued for each shipment of recycled carbon. This certifies that the spent carbon has been recycled in a manner that meets or exceeds all applicable RCRA and benzene NESHAP regulations.
For customers who choose more sustainable practices or for customers who are trying to achieve sustainability goals and for applications which don’t require virgin carbon we offer carbon reactivation as a service.
Carbon reactivation is the process of using elevated temperatures followed by steam in a rotating kiln or multiple hearth furnace to remove organic compounds adsorbed onto the carbon during normal service use. Furthermore, reactivation destroys 99.99% of the removed organic contaminants through a combination of chemical reactions and oxidation in the reactivation plant’s afterburner. The reactivation process thus ends the liability associated with disposing and handling the adsorbed contaminants, while restoring the surface area and pore volume of the spent carbon to near virgin-grade levels.
The reactivation process recycles spent carbons into new activated carbon materials that continue to provide excellent performance in many treatment applications.
Reactivation can be applied to carbons used in both liquid phase and vapor phase applications. Spent carbons can be:
Evoqua has extensive experience with all types of reactivation services.
Evoqua reactivated carbon programs use our network of service technicians that are trained in performing carbon exchanges from both larger hard piped adsorber vessels by vacuum and slurry exchange and smaller adsorber vessels by direct vessel exchange.
React and Return is a highly controlled program where the customer’s spent activated carbon is removed, reactivated, and returned for reuse to the same customer. The carbon is segregated from other carbons during reactivation and storage. Virgin carbon is used to offset normal losses that occur during handling and reactivation to ensure that 100% of the original carbon volume is returned to the customer. For React and Return services provided for drinking water applications at our Darlington, PA and Red Bluff, CA facilities, the reactivated carbon is certified to ANSI / NSF Standard 61 for potable water treatment.
Pool reactivation is where spent carbons are removed and the resulting reactivated carbons are then pooled according to application type (vapor phase/liquid phase) and mesh size. These pooled carbons can then be sold into many applications as a substitute for virgin carbons to lower operating costs. Our pool reactivated carbons provided under this program are as follows:
