Water comes first
Planning water treatment as one overall system
Liquid Engineering plans independently of manufacturers: from the water analysis through concept and implementation to operation – with a financing model where required.
Plants from the Hydreatio network: one overall system
In use
Rotreat Abwasserreinigung GmbH is certified in accordance with ISO 9001:2015. Initial certification on 27 March 1997, valid until 30 March 2027. Certification body: SystemCERT, registration no. Q12530824. Scope: design, construction, operation and maintenance of membrane filtration and membrane bioreactor plants, as well as the manufacture of disc-tube modules.
One point of contact · Three areas of experience
Hydreatio combines water hygiene, membrane technology and vendor-neutral system planning into a single solution: tailored to the analysis, operational objectives and budget.
Overall system planning
Vendor-neutral end-to-end planning, from analysis and design through to implementation and operation, including a suitable financing model where required.
Membrane processes
RCDT Reverse osmosis separates salts and dissolved contaminants even in the case of highly contaminated, variable feed water. The system is designed on the basis of the analysis.
Water hygiene & Monitoring
Anolyte is produced on site, dosed as required and monitored using measurement data: for drinking water, process water and cooling water hygiene.
Water comes first
The journey of water through Hydreatio technologies
Clean, safe water. Designed to suit the process, monitored during operation and backed up by real-world results.
* Project-specific results, depending on the plant, its operation and the initial conditions.
01 / 03 Liquid Engineering · Overall system planning
First the operational objective, then the technology.
Vendor-neutral end-to-end planning, from analysis and concept through to implementation and operation, with a suitable financing model where required.
02 / 03 Rotreat · Membrane process
Radial flow. Controlled separation.
RCDT Reverse osmosis separates salts and dissolved contaminants, even with highly contaminated, variable feed water. The system is designed on the basis of the analysis.
03 / 03 Voigtländer · Water hygiene & Monitoring
Measure. Dose. Verify.
Anolyte is produced on site, dosed as required and monitored using measurement data: for drinking water, process water and cooling water hygiene.
One point of contact · Three areas of experience
Plan independently of manufacturers; implement effectively.
Hydreatio combines water hygiene, membrane technology and vendor-neutral system planning into a single solution: tailored to the analysis, operational objectives and budgetary framework.
* Project-specific results, depending on the plant, its operation and the initial conditions.
Possible solutions by application
From design to operation
Basis for decision-making for operators: appropriately designed, monitored during operation and substantiated by specific project results.
Landfill · Rotreat RCDT
Highly contaminated, variable landfill leachate treated using RCDT reverse osmosis: designed on the basis of analysis.
Landfill · Rotreat RCDT
RCDT plant with 120 m³/day: after 56,000 operating hours in service, with an average yield of 67% and 75 bar.
Pharmaceuticals · Rotreat RCDT
RCDT Reverse osmosis for highly contaminated effluent from pharmaceutical production, installed as rows of modules in the hall.
Surface water · Rotreat MBR
Membrane bioreactor for highly variable volumes and quality levels. Since it was commissioned in July 2019, all limit values have been met.
Aviation · Voigtländer
A continuously monitored system for production, controlled dispensing, supply and documentation: operated under real-world airport conditions.
Food and drink · Voigtländer
Existing CIP cleaning system converted to use on-site-generated anolyte: shorter, validated cleaning cycles without the need for chlorine gas logistics.
* Project-specific results, depending on the plant, operation and initial conditions. ** Project values as per the Rotreat project data.
International references
From landfill leachate in Galicia to drinking water at Frankfurt Airport: see where similar facilities are already in operation.
The tour runs automatically. Select a country from the list to jump straight to that one.
Your benefit
Experience in operations
Concise overviews of hygiene, operators’ obligations and new requirements, with specific implications for plant operations.
TrinkwV & Legionella · 42. BImSchV · CIP & Anolyte · EU 2025/20
Smart Match
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