We make wet waste valuable!
Converting wet biowaste into solid
hydrochar with OxyPower HTC™
“With this technology, we can save both the environment and costs.”
Circular sludge handling
Our OxyPower HTC™ facility can convert up to 30,000 tons of wet biowaste into sterile, dry hydrochar, solving both disposal and environmental challenges in one go.
Visit our OxyPower HTC™ plant
C-Green’s OxyPower HTC™ plant at Stora Enso’s packaging paper mill in Heinola, Finland, is the world’s first hydrothermal carbonization (HTC) facility using the innovative OxyPower process. At an operating capacity of about 16.000 tons of biomass sludge annually, the hydrochar produced will generate energy for the mill and the municipality of Heinola.
See the new film with Stora Enso’s perspective on the cooperation with C-Green and how our technology could become part of their strategy to become climate-positive.
In solving one problem, another is created
Cleaning wastewater means more sludge
As we get better and better at treating sewage and industrial wet waste we create a new problem: massive amounts of sludge.
Nowhere to go
In spite of the $20 billion spent annually on sludge disposal, most of it still ends up in the environment, untreated.
Bad news for the environment
Solid wet waste can contain hazardous substances, and as sludge decomposes, it emits greenhouse gases. And it smells bad. Really bad.
Taking the lead
Hundreds of millions of tons of sludge are produced globally each year. C-Green has a sustainable solution to the problem.
OxyPower HTC™
Turn wet sludge into climate-smart, sterile, and easy-to-handle hydrochar
Hydrochar is useful
Hydrochar is a solid, carbon-rich product with many applications: carbon sink, biofuel, or as soil improvement.
Climate-smart
Greenhouse gas emissions from sludge are effectively and immediately eliminated. Sludge is converted into solid biofuel and biogas, which can replace fossil fuels.
Increases nutrient recovery
Nitrogen can be recovered in the process and, when hydrochar is incinerated, phosphorus can easily be recovered from the ash.
Saves money
Compared to conventional sludge handling, OxyPower HTC™ reduces costs. The process is almost completely self-sufficient—making it the most energy-efficient sludge handling method available.
Kills pathogens
Completely destroys all viruses, bacteria, and parasites, producing a sterile Hydrochar.
Renewable energy
The conversion of sludge into solid biofuel and biogas offers new sources of sustainable fuel.
Try it.
OxyPower HTC™ technology converts wet sludge into a solid, odorless material that can be used as soil improvement or biofuel. Contact us at slamtest@c-green.se to discuss your particular sludge’s potential.
Disclaimer: This offer is only available for municipal wastewater treatment plants operating in the Baltic region.
OxyPower HTC™ is the solution
What is the problem?
Sludge is dripping wet | Sludge can contain up to 90% water, making it voluminous, heavy, and expensive to transport and burn.
Expensive to dewater | Drying sludge with conventional methods is energy-intensive.
High pathogen content | Can create a hazardous work environment and cause environmental contamination.
Foul smell | The ever-present, noxious smell of sludge can be very unpleasant for workers and the surrounding community.
Fighting the good fight
If sludge is not handled responsibly there is risk for:
Health and the environment | Leakage from and exposure to untreated sludge can be hazardous for both people and the environment.
The climate | Storing and composting sludge emits large amounts of methane and nitrous oxide, greenhouse gases that are much more potent than carbon dioxide.
OxyPower HTC™
Recycles sludge into useful energy and agricultural nutrients while stopping greenhouse gas emissions and environmental contamination.
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