AQVION GmbHEngineering for living systems
LocationMünchen · 48.137° N, 11.575° E
Edition2026 · Edition I
ReachDE · EU · Worldwide

Engineering
for living
systems.

Photobioreactors, RAS recirculation systems and industrial aquaponics — designed, built and operated with German precision. From prototype to giga-scale. For sites worldwide.

PHYOX site visit — industrial microalgae production, Novska, Croatia
PHYOX · Photobioreactor hall · Novska, HR 2023.06.12
Plants in production
PHYOX Microalgae · Industry
Obermühle Fisch RAS · Catfish · Tilapia
Garnelenhof Altenstadt Indoor · Shrimp

§ 01 — Position

We don't build plants. We build production. From the first water parameter to the fully automated giga-scale hall.

What we are not

No template plant builders. No aquaponics wishful thinking. No algae idea without engineering.

What we deliver

Robust engineering from biology, process engineering, sensors and automation — project-specific, documented, reproducible.

Who we work with

With ventures that are seriously conceived biologically and economically — from startup pilot to institutional giga roadmap.

§ 02 — Disciplines

Six fields of expertise.
One integrated engineering mindset.

From reactor design to 24/7 operation. Every plant is born from the biological target parameters, the site and the market logic — not from a catalogue.

Process instrumentation — magnetic-inductive flow meter in the plant loop
§ 03 — Scaling

From prototype to giga-scale.
Plant size is not an exclusion criterion.

We build the entire spectrum of biological production. What matters is not square metres — what matters is biology, site and engineering depth.

Stage 01

Prototype & lab

Research reactors, modular setups, highly instrumented — reproducible conditions for later scaling.

Stage 02

Pilotplant

Transition from lab to commercial application. Validate at low risk, consolidate data, test the economics.

Stage 03

Productionplant

Small and medium production plants with full industrial maturity — from tonnes of biomass to premium animal production.

Stage 04

Giga-plant

Large-scale sites, modular replication, fully automated process control across multiple parallel lines.

A startup pilot is just as welcome to us as an institutional giga roadmap — as long as the venture is biologically serious.

Discuss project size

The core medium

Everything we build begins with the moving energy of water.

Water in motion · Flow · Oxygen · Life

§ 04 — Core competence

Three disciplines.
One core medium.

Whether microalgae grow in the photobioreactor, fish are produced in the RAS plant, or aquaponics couples both — at the core it is always about the same thing: precisely controlled water. Chemistry, flow, gas balance, microflora, reproducibility. Whoever masters water at industrial scale masters all three applications.

01

Chemistry and microflora

pH, buffering, trace elements, biological activity. Water is never just H₂O — it is an ecosystem that carries every plant differently.

02

Oxygen and CO₂ balance

Input, stripping, turnover — the gas logic separates a productive plant from a loss-making one.

03

Flow and hydraulics

Residence times, layer thicknesses, dead zones. Flow design determines light penetration, oxygen supply and stability.

04

Reproducibility

One day, one plant, one strain — and again tomorrow. Reproducibility is true industrial maturity. It comes from precise water control.

Parameter layer O₂pHORP ECTemperatureNH₄ NO₂NO₃CO₂ TurbidityODSalinity
FIG.04 — THREE DISCIPLINES · ONE MEDIUM PHOTOBIOREACTOR RAS · LOOP AQUAPONICS Water THE CORE MEDIUM Fig. 04 · Convergence diagram

§ 05 — RAS · Indoor fish farming

Fish farming in a closed loop.

RAS — Recirculating Aquaculture System. 95–99 % of the water stays in the loop, biology is fully controlled, production runs year-round — independent of site, season and weather.

Mechanical filtration

The drum filter removes solids before they burden the water chemistry — the first stage of every stable loop.

Biofilter & nitrification

The MBBR moving bed converts toxic ammonium (NH₄) via nitrite into harmless nitrate — the biological lifeline.

Oxygen & CO₂

Oxygenation keeps the O₂ level high, degassing strips CO₂ from the water — precisely controlled via the sensors.

Energy & redundancy

Heat recovery, backup power and dual O₂ supply. With living stock, failure is not an option.

Species realised African catfish Tilapia Giant gourami Shrimp
FIG.05 — RAS · LOOP FLOW FEEDING FISH TANK Culture · Stock DRUM FILTER Solids BIOFILTER MBBR · NH₄→NO₃ UV CLARIFICATION Germ load O₂ INPUT Oxygenation CO₂ DEGASSING Stripping Loop 95–99 % WATER IN SYSTEM Fig. 05 · RAS process schematic
RAS recirculation plant with round fish tanks and process instrumentation RAS · Recirculation plant · Line 10
FIG.06 — AQUAPONICS · NITROGEN CYCLE FISH TANK NH₄⁺ excretion FILTRATION Solids NITRIFICATION NH₄→NO₂→NO₃ CLEAN WATER Return PLANT BED NO₃⁻ uptake · Harvest N cycle NH₄⁺ → NO₂⁻ → NO₃⁻ FISH FEEDS PLANT · PLANT CLEANS WATER Fig. 06 · Aquaponics nutrient cycle
Vertical aquaponics system with plant racks above glass fish tanks Aquaponics · Vertical system

§ 06 — Aquaponics

Two harvests from one water loop.

Aquaponics couples fish and plant production. What the fish excrete becomes, via nitrification, fertiliser for the plants — which in turn clean the water. Coupled or decoupled, at industrial scale.

Nitrogen cycle

NH₄ → NO₂ → NO₃: fish excretions become a high-quality plant nutrient via bacteria.

Coupled vs. decoupled

One loop for maximum efficiency — or separate loops to optimise fish and plant independently.

Crop cultivation

Leafy greens, herbs and fruiting vegetables — in hydroponic beds or space-saving vertical systems.

Water balance

Only evaporation and uptake into the harvest are replaced — fresh-water demand drops drastically.

Plants & fish Lettuce Basil Herbs Fruiting veg Tilapia
§ 07 — Method

Engineering.
No templates.

Six qualities that set us apart from classic plant builders, generic aquaponics providers and standard bioreactor suppliers.

01

Depth, not templates.

Every plant is individually designed — for biology, site, energy and market. No catalogue, no “one size fits all”.

02

Data, not guesswork.

High-precision sensors, continuous analysis, documented performance — verifiable and reproducible.

03

Automation with clarity.

Semi- and fully automatic control that relieves operators — without taking them out of control.

04

Any size — no exclusions.

Prototype, pilot, production, giga-scale. One engineering team, one consistent methodology, all scaling stages.

05

Global site approach.

Climate, water, energy and logistics are factored into the engineering — from the first sketch. Realised worldwide.

06

Operation as standard.

24/7 monitoring, performance reporting and optimisation are part of the package. We don't disappear after commissioning.

§ 08 — Facilities

This is what AQVION engineering looks like.

Documentary shots from ongoing projects — photobioreactors, process engineering, sensors, plant architecture.

MSR · LINIE 10 · VERFAHRENSTECHNIK ROHR · FLANSCH · DURCHFLUSS · TEMPERATUR
Process engineering — piping and instrumentation & control beneath an operating reactor, Line 10 Process engineering · I&C · Line 10
Microalgae sample — pipetting in the lab Lab · Sampling
Microalgae biomass as dried powder Value compound · Biomass
Photobioreactor modules with active microalgae culture — Lines 20 and 21 Microalgae active · Lines 20 · 21
§ 09 — Process

From the first water parameter
to the fully automated plant.

Five stages — scientific, documented, reproducible. Independent of plant size and site.

01 · Analysis

Site & biology

Site audit, biological target parameters, market, energy, water, climate — the solid basis of every design.

02 · Concept

Conception

Reactor or loop design, load logic, sensor stack, business case, permitting strategy.

03 · Engineering

Detailed design

Hydraulics, control logic, measurement and control plan, control cabinet design, ISA diagrams, bill of materials.

04 · Build

Commissioning

Assembly, calibration, microbiological start-up, training, documented handover and performance validation.

05 · Operation

Optimisation

24/7 monitoring, performance reporting, continuous optimisation and service levels — open-ended.

§ 10 — Scale

– Giga
Plant size

From pilot to giga-scale — no exclusion criteria.

24/7
monitoring

Sensor layer with anomaly detection and response.

3
Reference plants

PHYOX · Obermühle Fisch · Garnelenhof Altenstadt.

DEWorld
Reach

Engineering from Munich, delivered to every continent.

§ 12 — Reach

From Munich.
For sites worldwide.

Climate, water quality, energy profile and logistics flow into every plant. We deliver engineering to Germany, the EU and every continent — with German engineering methodology, documented in German or English.

Every plant is designed for its target site — from the first sketch to on-site commissioning. We coordinate planning, manufacturing and assembly across borders and factor in local energy, water and permitting conditions from the very start.

MÜNCHEN · DE 48.137°N · 11.575°E PHYOX · HR

§ 14 — Frequent questions

Answers before the conversation begins.

The questions most often asked in first conversations — answered briefly and clearly.

§ 15 — Contact

Let's talk
about your project.

30-minute first consultation — confidential, technically sound, no sales pressure. We clarify feasibility, scale and timeframe.

Direct

Email: servus@aqvion.de

WhatsApp Business: +49 1522 4873558

Location

AQVION GmbH

Burgstraße 12

80331 Munich, Germany

Languages

German · English

Reply within 24 h · Urgent requests via WhatsApp

§ 16 — Company

AQVION — Engineering from Munich.

We are a German engineering house for biological production systems. Our competence lies at the intersection of biology, process engineering, sensors and automation. We develop and operate plants that produce reliably at every scale — from prototype to giga-scale, conceived in Munich and realised worldwide.

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