ELOXIRAS Phase 1 and Phase 2 (SME-1 and SME-2) focused entirely on electrochemical oxidation in recirculating aquaculture systems.
APRIA SYSTEMS SL
Spanish SME developing electrochemical oxidation systems for aquaculture water treatment, expanding into solar-driven wastewater technologies.
Their core work
APRIA SYSTEMS is a Spanish SME specializing in electrochemical water treatment technologies, with a core focus on oxidation systems for the aquaculture industry. Their flagship work involves electrochemical oxidation applied to recirculating aquaculture systems (RAS), aiming to improve water quality and operational efficiency in fish farming. More recently, they have expanded into solar-driven chemical conversion and wastewater treatment, suggesting broader ambitions in environmental water technologies.
What they specialise in
Both ELOXIRAS projects target the RAS industry specifically, indicating deep domain knowledge in closed-loop fish farming water management.
Participation in HYSOLCHEM (2021-2025) on hybrid reactors for solar CO2/N2 conversion coupled to wastewater treatment.
How they've shifted over time
APRIA SYSTEMS began with a tight focus on electrochemical oxidation for aquaculture (2014-2018), successfully progressing from feasibility study to full-scale SME Instrument Phase 2 — a sign of commercial maturity in that niche. By 2021, they joined HYSOLCHEM as a participant, pivoting toward solar-driven chemistry and wastewater treatment, which suggests they are broadening their electrochemical expertise beyond aquaculture into wider environmental applications.
APRIA appears to be transitioning from a single-application aquaculture company toward a broader environmental water and chemical treatment technology provider.
How they like to work
APRIA SYSTEMS primarily leads its own projects — two of three H2020 projects were coordinated by them, both under the SME Instrument, which is a solo-company funding scheme. Their participant role in HYSOLCHEM (an RIA with a larger consortium) marks a shift toward collaborative research. With 8 unique partners across 6 countries, their network is modest but geographically diverse for a company of this size.
APRIA has worked with 8 distinct partners across 6 countries, building a small but internationally spread network. Their coordination experience is concentrated in solo SME Instrument projects, while consortium collaboration is more recent through HYSOLCHEM.
What sets them apart
APRIA SYSTEMS occupies a rare niche at the intersection of electrochemistry and aquaculture — few SMEs have progressed through both Phase 1 and Phase 2 of the SME Instrument in this space. Their successful graduation from feasibility to market-readiness funding signals a technology with genuine commercial potential. The pivot into solar-driven wastewater treatment suggests they can transfer their electrochemical core competence to adjacent environmental challenges.
Highlights from their portfolio
- ELOXIRASSuccessfully completed both SME Instrument Phase 1 (€50K) and Phase 2 (€1.04M), demonstrating a validated path from feasibility to market for their electrochemical aquaculture technology.
- HYSOLCHEMMarks a strategic expansion from aquaculture into solar chemistry and wastewater treatment as a participant in a multi-partner RIA consortium.