top of page
All Posts


š PRELEVāMANS Project Kick-Off
š A new milestone for Alkaline Technologies On Friday 10th, July, we had the pleasure of launching PRELEVāMANS alongside Le Mans City, Metropolitan Authority and CCAS, as well as the project partners: Le Mans Innovation, PĆ“le EMC2 and Veolia. Over the coming months, we will investigate an innovative approach to transforming fine incinerator bottom ash fractions into a strategic mineral resource, addressing key challenges related to sovereignty, decarbonization and sustainabi
quentinwehrung
Jul 251 min read


Why Geochemistry Will Be the Key to Scaling Industrial Waste Carbonation
Frontier has just sent a strong signal to the carbon removal sector. By announcing a new $915 million commitment and identifying surficial mineralization as one of the most promising carbon removal pathways, the coalition backed by Stripe, Google, Shopify, Anthropic, and others has done much more than announce new funding. For a long time, accelerated carbonation of alkaline industrial residues was considered a niche research topic. Today, it is emerging as a technology capab
quentinwehrung
Jul 52 min read


š Commissioning of our Falcon L40: a new step toward advanced resource recovery
Europe must rapidly scale its mineral processing capacity to strengthen its sovereignty and accelerate the transition toward a circular, low-carbon economy. At Alkaline Technologies, this is exactly what we are building with our partners at Dipartimento di Scienze della Terra UniversitĆ di Torino and Politecnico di Torino. We are pioneering the combination of advanced metal recovery and accelerated COā mineralization for alkaline wastes. š Milestone for the team: Weāve just
quentinwehrung
Apr 261 min read


Solving the Antimony Paradox in Waste-to-Energy Bottom Ashes
We work at the intersection of metal recovery, pollutant stabilization, and CO2 mineralization to produce high-quality secondary raw materials (SCMs) from complex ashes, slags, and dusts. While developing our separation process for incinerator bottom ash, we encountered a well-known but poorly understood issue: The antimony paradox. When CO2 mineralization is applied to ashes, it can unintentionally increase antimony release in water. A process intended to improve environment
quentinwehrung
Mar 21 min read


The Alkaline Technologies team
A FrancoāItalian research team with an international ambition, the core Alkaline Technologies team gathered in Turin this week to align on key scientific, technical, and commercial topics. On the picture : Meissem, Florian, Fabien, Quentin and Davide

Fabien Michel
Feb 81 min read


From waste to wealth, from ash to cash
Did you know? Most precious metals and REEs in the world occur as fine particles, sometimes even dust-sized. Wastes are no exception. Gold. Silver. Ruthenium. Neodymium. These SEMāBSEāEDS images (incineration bottom ash) reveal micron-scale concentrations of high-value elements, invisible to the naked eye. š SEM-EDS, BSE imaging, ICP-MS A few backscattered electrons, the right analytical workflow⦠and the metals speak for themselves. The real questions are: are they recovera
quentinwehrung
Jan 181 min read


Bottom ash carbonation
Viewed from the outside, bottom ash just looks like a pile of dirty scraps. š¬ But under the microscope, an entire crystalline world reveals itself. Take a look at their rapid transformation during COā mineralization. See how cool these morphologies are? At the top: ⢠needle-like ettringite (CaāAlā(SOā)ā(OH)āāĀ·26HāO) ⢠hexagonal hydrocalumite (CaāAlā(OH)āāClāĀ·4HāO) As soon as they are mixed with water and COā, these minerals transform into carbonates, forming rhombohedral c
quentinwehrung
Jan 181 min read


Where Carbon Meets Metals: Momentum Is Building
Over the past two months alone, we have received 100+ samples of alkaline wastes, with many more on the way. Ashes. Coal fly ashes. Metallurgical slags. Dusts. Biomass residues. Concrete and demolition materials. All are or have been under active investigation to scale up next-generation recycling and COā mineralization solutions. What is particularly striking is the shift in momentum. The industry has been far more responsive than we could have anticipated just one year ago,
quentinwehrung
Jan 21 min read
bottom of page