Mineral carbonation for concrete producers

Name: neustark
Price range: $

As a concrete producer, transform margin pressure into climate action: by storing CO₂ in your residual water. Let's get concrete on how, today.

neustark durably stores CO2 in slurry water, i.e. residual water and creates negative emissions

Neustark turns mineral waste streams into carbon sinks: from demolition concrete to slags and ashes to concrete sludge.

To do so we work with biogas plants to source our CO₂ and storage partners located in close proximity to each other to store the CO₂ via mineralization in different mineral waste streams.

Mineralizing CO₂ is a process that we’ve proven to be both commercially and ecologically viable – as the first player to do so worldwide. We already have numerous storage sites in operation across Europe and are scaling up quickly.

Team up with us and turn the decarbonization of construction into an opportunity for your business. As a concrete producer, you have the concrete residual water – we have the technology to add on.

We install our technology alongside your existing production process and create an additional income stream for you. Nothing is disrupted – it’s an add on. For your business, for your sustainability efforts, and for the climate.

Forge a new income stream whilst decarbonizing the built environment!

Get in touch

This is how we store CO₂

Storage sites at concrete producers

At production sites, mobile and stationary concrete mixers are regularly cleaned of residues. The result is a waste product that is collected in the slurry water pit: water with a very high proportion of cement phases, also known as residual water or slurry.

In most cases, the slurry is used as a fresh water substitute for the production of (recycled) concrete.

neustark has developed a technology that enriches the slurry with CO₂ and triggers an accelerated mineralization process. Thus the CO₂ is durably stored as limestone in the cement parts of the residual water.

It's a dual advantage

First, this all happens alongside the concrete producer's existing processes, not disrupting the plant's operations. Our storage tech is easily integrated into the residual water treatment process and can be used as a stand-alone unit or in combination with other solution types from our portfolio (see below).

Second, in addition to the storage of CO₂, the mineralization process simultaneously neutralizes the slurry. The pH value decreases from approximately 12 to 8.5 through carbonation. This allows excess residual water to be fed into the wastewater without high disposal costs.

It’s a win-win-win: processors and recyclers profit from an additional revenue stream that also helps their sustainability action.

Result: added value for all!

It’s a win-win-win: concrete producers profit from an additional revenue stream that also helps their sustainability efforts.

Neustark removes CO₂ from the atmosphere. Both businesses and the climate benefit.

Let's go on this pioneering journey, together.

So what are you waiting for? Let's start this journey together

Our solution type

Neustarks new product is called carbonator and is used to turn mineral waste streams into carbon sinks by permanently storing CO2 in residual water.

CO₂ carbonator

The CO₂ carbonator is designed as a stand-alone tech that can easily be integrated into the residual water treatment process to carbonate the slurry. It continuously circulates the slurry water from the pit and injects CO₂ until it reaches the level of where it cannot absorb anymore CO₂ and thus neutralizes its PH value.

So how does the process of working together look like?

Step 1

We determine the ecological and commercial potential based on the specific framework for your business.

Step 2

We validate the key assumption behind the calculated potential through a lab-scale test series. If needed, we validate those tests at a larger scale.

Step 3

Together, we design and implement a stationary solution that ideally fits into your existing infrastructure and processes.

Step 4

We construct the plant, and once ready, you take on ownership.

Step 5

You operate the plant, and neustark works with you to store many tonnes of CO₂ over the years!

Reach out to us today to explore how we can partner up

FAQs

Neustark’s solution is based on the well-researched chemical process known as natural mineralization or carbonation. Our technology accelerates this process from over 1000 years to just a few hours while multiplying the average CO₂ uptake.

For more information, see How our solution works.
We have adaptable business models as well as product types, according to your needs.

In general, neustark constructs the storage technology at your plant. Once finished, the storage site belongs to you, the recycler. An initial, lump-sum investment to purchase the technology is needed. This investment is then counterbalanced by neustark paying you to utilize your storage site. Over the course of a few years, the initial investment is turned into profit for you.
In addition to the storage of CO₂, the mineralization process simultaneously neutralizes the slurry. This means that excess residual water can be fed into the wastewater without high disposal costs.
We partner with biogas plant to filter out the CO₂ that is created during the plant’s production process. We then liquefy the captured CO₂ to then transport it to the nearby storage sites.
Depending on the density of cement parts in the residual water and the amount of residual water produced, our plants can store up to an additional 200 tons of CO₂ every year.

Are you interested?

Reach out today to explore how we can partner up!

Sean Donaldson

Business Development Representative

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