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Projects & References / Proven in Practice
Proven in Practice. Real water. Real operations. Measurable results.
See where the technology is already working, what it was designed to solve, and what was measured in real operation. For selected projects, we can also arrange a site visit or direct contact with the operator.
Installation status
All in operation
To this day, with regular service intervals.
Site visit
Possible at all sites
By arrangement directly with the operator.
Independent coverage
Television report
Karviná and Olešná aquapark.
International reference
Austria
Verified to Austrian regulatory requirements, in cooperation with BWT.
Verify it yourself
You don't have to take our word for it. You can go and see for yourself.
The best answer to "did it actually work somewhere?" does not come from us. It comes from the operator who lives with the technology every day — and who will also tell you what needed adjusting along the way.
Visit a running installation
A site visit is possible at all listed installations. Karviná and Olešná aquapark are the most frequently visited.
Pilot on your own water
Before committing, the technology can be verified on your actual water. A reference from someone else's site is not the same as a result on your source.
I. What the results mean
A reference is not a catalogue.It is a proof of principle.
Every water source, building, and operating regime is different. A reference therefore does not automatically promise the same result elsewhere.
What it does show is that the technological principle has been deployed or verified on real water — from drinking water and wells through pool circuits to advanced wastewater polishing.
For each installation we therefore state what type of evidence it represents. A long-running operational reference and a laboratory result do not carry the same weight, and there is no point pretending otherwise.
I.
Public operational reference
The strongest evidence of long-term deployment in a specific installation.
II.
Operational measurement
Before-and-after results with stated conditions and parameters.
III.
Pilot verification
A test on real water that informs the design of the next technical step.
IV.
Laboratory result
Evidence of effect in a defined test — not an automatic guarantee of operational performance.
II. Pools & aquaparks
Backwash water that returns to the circuit.
Sand-filter backwashing discharges water that is chemically sound — and already heated. A recovery line captures it, polishes it, and returns it to operation along with the heat it carries.
Municipal pool / public client
Karviná
Two units with remote monitoring process backwash water from five pool circuits. The operator pays neither for the water discharged nor for reheating it.
2 × 20 m³/day · recovered heat 112 MJ/m³.
In operation since 11/2025 · to date · service intervals
International reference
Tamsweg, Austria
Deployed in cooperation with BWT and verified to the requirements of Austrian regulatory authorities — a different legislative environment from the one in which the technology was developed.
Daily capacity 13 m³ · recovery approximately 84 %.
In operation · to date · service intervals
Indoor aquapark / public client
Olešná, Frýdek-Místek
The highest daily processing volume of the pool installations listed. Continuous operation with remote monitoring.
46 m³/day · recovery approximately 80 %.
In operation since 12/2025 · to date · service intervals
Hotel operation
Hotel Olšanka, Prague
Modular configuration fitted into the limited space of the existing plant room. Recovers both backwash water and whirlpool water, without structural modification to the building.
Daily capacity 15 m³ · recovery approximately 79 %.
In operation · to date · service intervals
School pool / public client
Primary School 11, Frýdek-Místek
Smaller installation with continuous operation. The waste stream from the recovery line can additionally be reused for sand-filter backwashing.
Continuous operation · 1 m³/h.
In operation since 01/2026 · to date · service intervals
Healthcare facility
Rehabilitation pool
Operation subject to stricter hygiene requirements than a public swimming pool, in fully automatic mode with remote monitoring.
In operation since 03/2026 · to date · service intervals
Independent coverage
The Karviná and Olešná aquapark installations were featured in a television report. Both are among the most frequently visited sites — if you want to see the technology running, this is typically where we start.
III. Pool water quality
Less chlorine in the air, cleaner water under the surface.
Combined chlorine, chlorates, and chlorine-resistant microorganisms are three problems that pool operations typically answer with higher disinfectant dosing. More chlorine, however, produces more by-products — it does not produce cleaner water.
Combined chlorine
Aquadrom Most
Automatically controlled bypass system integrated into the circulation circuit. Combined chlorine is what is noticeable above the water surface and what irritates eyes and airways.
Average daily values below 0.15 mg/l · power draw 0.55 kW.
In operation · to date · service intervals
Whirlpool microbiology
Hotel Sklář, Harrachov
Installed as a bypass on a system burdened with chlorine-resistant bacteria and legionella — in a situation where standard disinfection had persistently proved insufficient.
Operating data shows target organisms reduced to 0 CFU/ml.
In operation · to date · service intervals
Chlorates
Aquaforum Františkovy Lázně
Running on bypass to the circulation circuit in automatic 24/7 mode with remote monitoring, requiring no manual intervention.
Chlorates below the regulatory limit of 30 mg/l.
In operation since 04/2026 · to date · service intervals
Healthcare facility
Domažlice Hospital
Water treatment for a rehabilitation pool in automatic 24/7 mode with remote monitoring.
Chlorates reduced below the 30 mg/l limit.
In operation · to date · service intervals
IV. What it returns
Savings calculated per cubic metre. Payback in years.
Numbers make sense only once it is clear the technology actually runs somewhere. With pool water recovery, three things are saved simultaneously: water that is not discharged, sewerage charges that are not paid for it, and heat that stays in the water. The third is frequently underestimated and typically carries the most weight in the saving.
Karviná municipal pool
- Operating cost saving
- ≈ CZK 199/m³
- Return on investment
- ≈ 2.5 years
- Volume processed
- 2 × 20 m³/day
- Recovered heat
- 112 MJ/m³
The installation was co-financed by a state subsidy.
Olešná indoor aquapark, Frýdek-Místek
- Operating cost saving
- ≈ CZK 127/m³
- Volume processed
- 46 m³/day
- Recovery rate
- ≈ 80 %
- Operation
- continuous
The installation was co-financed from an operational programme focused on sustainable water management.
Figures are based on operational data from specific installations. Transferability to another building depends primarily on local water and sewerage tariffs, the thermal regime, visitor numbers, and the backwash method used. We will prepare an indicative calculation from your figures — and if the result shows the investment will not pay back within a reasonable horizon, we will say so.
V. Drinking water & industry
From waterworks to private wells. The target quality decides.
Waterworks Bezdědice
Deployed for pesticide removal from drinking water and verification of stable output in a municipal waterworks environment.
Selected pesticides removed from drinking water.
In operation · to date · service intervals
Borehole water for bottling
Polishing of water with a pesticide load in a production environment with strict quality requirements, where water is both raw material and product.
Concentrations reduced below the detection limit of the methods used.
In operation · to date · service intervals
Mlýnské Struhadlo
Well water requiring assessment not only of taste but also of organic content, microbiology, and system stability.
Configuration designed from a specific analysis and operating context.
In operation · to date · service intervals
- VHS SlanýWaterworks operation
- Světlá nad SázavouWaterworks operation
- Kerská limonádovnaFood & beverage production
Further installations and pilot projects cannot always be published with the customer name or detailed operating figures. We therefore list only references and parameters that can be communicated responsibly.
VI. WWTP & micropollutants
Quaternary polishing. Results that must be read in the context of the test.
The wastewater solution combines pre-treatment, ultrafiltration, adsorptive action of carbon nanotubes, their subsequent separation, and regeneration.
Pilot verification used wastewater from Prague WWTP – Císařský ostrov. The results demonstrate the potential of the technology for targeted capture of selected pharmaceuticals, micropollutants, and part of the biological load.
- 37 pharmaceutical substances and residues monitored.
- 35 substances completely removed after filtration in the test.
- 8 million rotavirus A particles per millilitre at inlet.
- No rotavirus A particle found in the outlet sample.
- Media regeneration is an integral part of the process design.
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monitored pharmaceuticals and residues completely removed in the pilot verification described.
This result is not a universal guarantee for every wastewater. The design must always be based on the specific composition, treatment goal, hydraulics, and verification on the actual stream.
The pilot unit exists and is in operation. Its configuration, operational data, and the conditions for verification on your water are discussed on request — directly between the investor's engineers and our specialists.
VII. What we do not promise
A reference is not a guarantee. And the technology does not do everything.
The results shown apply to a specific water source, specific hydraulics, and a specific operating regime. On a different site they may be better or worse — which is why, for larger projects, we insist on verification on your water rather than adopting someone else's numbers.
Equally, the technology does not handle everything. Where adsorption on a carbon-based medium is fundamentally limited, we say so directly and propose a combination with a different treatment stage.
VIII. Next step
Find the project closest to yours. Then verify it.
Tell us what water, facility, or operating problem you are dealing with. We will identify the most relevant reference, arrange a site visit or operator contact where appropriate, and define the next verification step for your water.
Management+420 777 321 846
Technology+420 777 919 877
Sales+420 773 992 321
Export / International+420 730 330 353
DANIEL-LM s.r.o. · AquaTech North Bohemia Division
info@aquananotech.eu