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Winning the confidence of customers with Downflow Anaerobic Carrier System DACS®

Aqana’s technology makes the purification of wastewater a sustainable process. With the DACS® treatment, a relatively large amount of biomass is held inside of the carriers within the anaerobic system – resulting in the effective conversion of the organic material in the wastewater into biogas.

DACS® eliminates the expensive necessity of granular sludge and by that manages to provide a reliable anaerobic system that guarantees continuous operation regardless of changes in flow and organic load. Thanks to this innovation the retention of the biomass is no longer limited by the flow velocity inside the reactor!

Aqana DACS® works efficiently with other wastewater treatment configurations.


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The main benefits of the Aqana DACS® system

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The high-rate process

Employ the most energy-efficient anaerobic technology for treating industrial wastewater and converting organic matter into energy-rich biogas.

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Reliable performance

Highly resistant to hydraulic shock loads with a short recovery time for smooth and uninterrupted operation.

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Low maintenance

Save time and money without having to sacrifice the quality of the treatment and biogas generation.

How does DACS® anaerobic wastewater treatment technology work?

The DACS® is configured for downward effluent flows. The treated wastewater passes through a moving bed of floating plastic carriers, from the top to the bottom of the anaerobic reactor.

The anaerobic biomass is mainly attached to the inside of the carrier. The organic pollutants present in the wastewater are converted by the anaerobic biomass into biogas and a relatively small amount of anaerobic sludges.

In contrast to the wastewater, the biogas rises upwards to the top of the reactor, providing a gentle mixing of the carriers and good distribution of water throughout the carrier bed.

The application of the carriers in the DACS® allows for a simpler and more robust internal design of the anaerobic reactors.

Biomass required for treatment is maintained in the reactor by the carriers and excess sludge is removed. Retention of biomass is not limited by the flow velocity inside the reactor.

Building greener future with the customers

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Toby Heasman

Hall & Woodhouse Brewery

Aqana’s patented Downflow Anaerobic Carrier System DACS® with its unique simple but very efficient and robust technology set a new standard in the anaerobic wastewater treatment sector. Helping us reduce the discharge costs and operational expenditure.

Jan 7th, 2022

Get a free audit and see how much you can profit with Aqana as a partner!

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