Econvert-IR®

Your challenges

Strict discharge regulations and high discharge fees

Discharge regulations of wastewater in the sewer system are becoming stricter, and the discharge fees for discharging wastewater are continuously increasing. Econvert-IR® reduces pollutants in the wastewater, enabling compliance with regulations while lowering your carbon footprint.

High wastewater treatment costs

Aerobic treatment systems often have high energy demands and sludge handling costs. Due to low aeration needs, minimal sludge production, and reduced chemical consumption, Econvert-IR® offers lower operational costs.

Rising energy costs

Energy costs continue to rise. Econvert-IR® converts wastewater into biogas, which can be used on-site to generate electricity, heat or fuel – increasing energy self-sufficiency.

Sustainability and carbon footprint goals

There is pressure for companies to become more sustainable and to achieve certain sustainability goals. Econvert-IR® helps reduce emissions and allows companies to recover energy, helping you toward reaching net-zero targets or green certifications.

Space limitations

Industrial sites often struggle with space limitations for production and logistics. Our reactors can be built over 30 meters tall, making anaerobic treatment possible in very compact footprints. Flexible sizing options allow integration even in constrained environments.

Do you want to know how our innovative wastewater treatment and biogas desulfurization solutions can benefit your business?

Our Solutions brochure

How does it work?

The process

Wastewater (influent) is diluted with recirculated effluent and enters the reactor via the standpipe. In the mixing chamber, it blends with the internal recirculation flow, creating ideal conditions for COD degradation. The influent distribution system ensures even distribution to avoid disturbances in the granular sludge bed, consisting of anaerobic biomass.

The Econvert-IR® reactor has two compartments with settling stages. In the lower compartment, a fluidized bed converts COD/BOD into biogas, and granules form. Due to high up-flow velocity (~16 m/h), smaller granules rise and are partly captured in the first settler. Others move to the second compartment with lower up-flow, where they grow and eventually settle back to the lower compartment, making it both a granule incubator and polishing step. Biogas and wastewater rise through the reactor via the airlift effect and are separated at the top. Biogas is collected for treatment and use; wastewater is recirculated to the bottom, supporting dilution and high up-flow velocity.

Our positive impact

The high performer – even under challenging conditions.

High performance under all circumstances

The Econvert-IR® reactor treats up to 35 kg COD/m³ per day, thanks to its intensive mixing. Additionally, the mixing energy is provided by the internal recirculation which is driven by a gas-lift principle. This “free” energy ensures mixing as well as dilution of the wastewater through its unique mixing cone principle.

Low footprint

Due to its design the Econvert-IR® can be built up to a height of 31 meters. The height of the reactor in combination with the high volumetric loading rates, makes it the reactor with the lowest footprint on the market.

Easy operation

Due to the internal recirculation of wastewater within the Econvert-IR®, the mixing and dilution of the reactor is increased when the load of the reactor is increased. This automatic system driven by biogas production provides the right amount of mixing and dilution at all times.

Built for challenging wastewater types

Econvert-IR® is designed to continue operation under extreme scaling conditions with high calcium or struvite precipitation. The reactor includes robust sludge roofs and a heavy-duty sludge removal system, ensuring uptime even in difficult operating environments.

"With the Econvert-IR® we've not just got a reactor, we have got a solution to our wastewater problem. It's reliable and performs beyond expectations "

Stora Enso Narew Sp. Z.o.o

Ostrołęka, Poland

Econvert-IR Anaerobic Wastewater treatment

Other solutions

We offer a variety of different anaerobic wastewater treatment solutions.

Econvert-EGSB Anaerobic Wastewater treatment

Food & Beverage
Pulp & Paper
Pharma & personal care
Industrial

Anaerobic – Econvert-EGSB

Wastewater

Econvert-EGSB® (Expanded Granular Sludge Bed) is the optimal solution after decades of experience, development and optimization. Combining a small footprint with robust internals (...)

Food & Beverage
Industrial
Pulp & Paper

Anaerobic – Econvert-UASB

Wastewater
Industrial water

The Econvert-UASB®(Upflow Anaerobic Sludge Blanket) has a proven track record for decades. Its robust and reliable configuration enables the handling of large varieties of wastewater (...)

Industrial
Food & Beverage
Pulp & Paper

Anaerobic – Econvert Anaerobic Rental

Wastewater
Industrial water
Resource Recovery

We understand that CAPEX is not always readily available to invest in anaerobic wastewater treatment, or that you may want to avoid long-term financial commitments. At Econvert, (...)

Industrial
Food & Beverage

Anaerobic – Econvert-DGF

Resource Recovery
Industrial water
Wastewater

The Econvert-DGF® (Dissolved Gas Flotation) is an anaerobic solution developed to treat raw wastewater with high concentrations of total suspended solids (TSS) and fats, oils, (...)

Municipal
Municipal wastewater
Industrial
Food & Beverage
Pulp & Paper
Energy

Anaerobic – Econvert-Dsulph

Resource Recovery
Industrial water
Sludge
Wastewater

The Econvert-Dsulph® is a proven, high-efficiency biogas desulfurization solution that combines the chemical absorption of hydrogen sulfide (H2S) in the scrubber with the biological (...)

Industrial
Food & Beverage
Pulp & Paper
Energy

Anaerobic – Econvert-RTF

Wastewater
Industrial water

The Econvert-RTF® is a regenerative trickling filter which achieves high H2S removal efficiency, consumes no caustic soda and enables aerobic effluent reuse. The technology prevents (...)