Construction & demolition waste recyclers

Name: neustark
Price range: $

Transform your construction demolition materials into a carbon sink: By storing CO₂in CDM, you can create additional revenue and make a tangible climate impact. Let’s get concrete on how, today.

neustark site for durable carbon removal at our partner Kästli in Rubigen, a construction and demolition waste recycler.

Neustark removes CO₂ from the atmosphere by storing CO₂ captured at biogas plants in mineral waste materials such as demolished concrete.

It’s a process that we’ve proven to be both commercially and ecologically viable – as the first player to do so worldwide. We have already launched 40 storage sites across Europe.

That’s where we need you.

Demolition concrete is our carbon ‘sink’. As a recycler, you have the construction demolition materials (CDM) – we have the technology to add on. Team up with us and turn the decarbonization of construction into an opportunity for your business.

We install our technology alongside your existing production process. Nothing is disrupted – it’s an add-on. And what’s more, it's a big value add-on for you: for your baseline, for your sustainability efforts, and for your future-proofing business model.

Forge a new income stream whilst decarbonizing the built environment!

Get in touch

This is how we store CO₂

Storage sites at recycling plants

Construction material recyclers collect concrete and other waste materials and at their plants, they crush & sieve the material to prepare for further use.

And that’s where neustark comes into play: we inject CO₂ into the demolished concrete whilst these granules are being recycled.

Our technology accelerates the mineralization process, turning CO₂ into limestone – and thus permanently binding it to the demolished concrete.

Alongside the existing process

This all happens alongside the recycler’s existing processes, not disrupting the plant's operations.

We build our technology on site at the recycling plant, connecting our tech with your existing operations.

The granules injected with CO₂ can be used as per usual process, for example, to build streets or other infrastructure, or to produce fresh recycled concrete.

Result: added value for all!

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

Neustark can remove 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 carbon removal partners

Press release

Feess GmbH & Co. KG

Together with German recycling specialist Feess (winner of the German Environmental Award 2016) have launched the first commercial CO₂ storage site in the Stuttgart area. The plant in Kirchheim unter Teck can permanently store 1,000 tonnes of biogenic CO₂ per year.

Read the press release

Case study

HEIM Group

What started with a pilot project to mineralize CO₂ into recycled concrete to build a real estate development in Berlin, has led to operating the first commercial CO₂ storage facility in Germany. Since autumn 2023 neustark and the HEIM Group are removing CO₂ together.

Read full case study

Why work with neustark?

Be a pioneer

Carbon removal is becoming an industry. Neustark built the technology that makes it real. Be part of it.

Additional revenue stream

Partnering with neustark helps you to create a new business field and, in the mid-term, generate an additional income stream.

Make your business (even more) sustainable

Whether your employees, your investors, your clients, or regulators – all your stakeholder groups want to see companies implement tangible, sustainable action, now.

Impact today – and tomorrow

Unlike other carbon utilization or removal methods, neustark’s solution is ready, today. By joining forces, you can have a direct impact on your business right away.

Explore our map of all of neustark's sites currently in operation

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

Our solution: The CarbonBox

The CarbonBox is neustark's proven mineral carbonation plant, designed to integrate seamlessly into your existing slag, IBA, or demolition concrete processing operation.

The sealed reaction chamber is fed with biogenic CO₂, triggering an accelerated mineralization process that permanently binds CO₂ into the mineral structure of your material. The treated granules exit the process unchanged in use – ready for road construction, landfill, or any other standard application.

The CarbonBox is available for both brownfield and greenfield installations. Whether you're adding it onto an existing production line or planning a new facility, we design the integration around your infrastructure.

For processors with high throughput, the CarbonBox Duo runs two chambers in parallel.

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 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.
We store about 20-40 kg of CO₂ per ton of slag and IBA, as well as around 10 kg of CO₂ per ton of demolished concrete. We are, of course, continuously working on further optimizing this figure.

Want to know more?

Let's chat today about how we can partner up!

Luis Schaub

Book an appointment online