Planning, manufacturing and commissioning of water treatment, wastewater and swimming pool systems from Hambühren
Chriwa Wasseraufbereitungstechnik GmbH
Hambühren · Representations including Colombia, Spain, Brazil, Greece, Guatemala, ArgentinaNew on Amplifa
About Chriwa
Chriwa Wasseraufbereitungstechnik GmbH is part of the Chriwa Group, founded in 1973 and headquartered in Hambühren (Lower Saxony), where it employs around 150 staff together with its sister companies CUSS and AWG. The company develops, plans, manufactures and builds customised water treatment, wastewater treatment and swimming pool water treatment plants as turnkey projects. Vessel and apparatus construction, pre-assembly and testing of plant components take place at the company's own plant in Hambühren; installation, electrical and commissioning work as well as personnel training are carried out worldwide, to date in over 110 countries. The process spectrum covers filtration, membrane technology, ion exchange, degassing, softening, iron and manganese removal, disinfection, through to anaerobic wastewater treatment with biogas recovery, as well as pool water technology in accordance with DIN 19643/19645. Customers come mainly from the beverage, food and dairy industries, from breweries, waterworks and municipalities, as well as from the swimming pool sector. Since 2024, the company has held the BSFZ seal of the Federal Ministry of Education and Research for research and development.
- Site
- Hambühren
- Processes
- Adsorption / desorption, Ammonium removal, Chlorine electrolysis, Disinfection, Iron and manganese removal, Removal of arsenic, fluoride, radon, radium, uranium, Degassing / gas stripping, Softening and decarbonisation
- Materials
- Industrial water treatment processes, Wastewater and biogas technology, Swimming pool technology
- Certificates
- BSFZ seal (research and development), Documented QMS, DIN 19643 (pool water), DIN 19645 (backwash water), BSFZ seal (R&D)
- Founded
- 1973
- Employees
- ca. 150
- Industries
- Waterworks/municipalities, Beverage industry, Breweries, Dairy/dairy industry, Food industry, Meat processing
- 01
Concept development
- 02
Project planning and process design
- 03
3D engineering and design
- 04
Vessel and apparatus construction in own production
- 05
Pre-assembly and testing of plant components in Hambühren
- 06
Worldwide installation and electrical commissioning
- 07
Process visualisation and operational data acquisition
- 08
After-sales service, maintenance and remote monitoring
Process Engineering and Manufacturing
Industrial water treatment processes
Processes such as filtration, membrane technology, ion exchange, degassing, softening and disinfection for treating various raw water qualities.
Wastewater and biogas technology
Aerobic and anaerobic biological processes (SBR, CSTR, UASB, EGSB, MBR) including biogas and energy recovery.
Swimming pool technology
Pool water, brine, well water and backwash water treatment in accordance with DIN 19643 and DIN 19645.
Locations
Hambühren
DEHeadquarters, factory, engineering office, manufacturing and pre-assembly
- Materials
- Stainless steel and materials for vessel and apparatus construction
- Own production halls for vessel and apparatus construction
- Pre-assembly and testing areas for plant components
- 3D engineering software
- Electrical and commissioning teams
Plants and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Adsorption / desorptionEngineering | – | – | – | – | – |
| Ammonium removalEngineering | – | – | – | – | – |
| Chlorine electrolysisEngineering | – | – | – | – | – |
| DisinfectionEngineering | – | – | – | – | – |
| Iron and manganese removalEngineering | – | – | – | – | – |
| Removal of arsenic, fluoride, radon, radium, uraniumEngineering | – | – | – | – | – |
| Degassing / gas strippingEngineering | – | – | – | – | – |
| Softening and decarbonisationEngineering | – | – | – | – | – |
| Neutralisation of acidityEngineering | – | – | – | – | – |
| Decontamination / detoxificationEngineering | – | – | – | – | – |
| FlocculationEngineering | – | – | – | – | – |
| Ion exchangeEngineering | – | – | – | – | – |
| Membrane filtrationEngineering | – | – | – | – | – |
| NeutralisationEngineering | – | – | – | – | – |
| OxidationEngineering | – | – | – | – | – |
| SedimentationEngineering | – | – | – | – | – |
| Vessel and apparatus construction (own production)Assembly | – | – | – | – | – |
| Pre-assembly and testing of plant components at the Hambühren headquartersAssembly | – | – | – | – | – |
| Worldwide installation and commissioning of water treatment plants (turnkey)Assembly | – | – | – | – | – |
| Electrical commissioning (electrical technicians, commissioning engineers)Assembly | – | – | – | – | – |
| 3D engineering and design of plantsEngineering | – | – | – | – | – |
| Process visualisation and operational data acquisition (PLC control, touch panel,Engineering | – | – | – | – | – |
| Aerobic biological wastewater treatment (activated sludge, SBR, bio-P, (de-)nitrification)Engineering | – | – | – | – | – |
| Anaerobic biological wastewater treatment (CSTR, UASB, EGSB) with biogas recoveryEngineering | – | – | – | – | – |
| Membrane bioreactors (MBR) in wastewater treatment plantsEngineering | – | – | – | – | – |
| Mechanical wastewater pre-treatment (screens, sand separation)Engineering | – | – | – | – | – |
| Sludge dewateringEngineering | – | – | – | – | – |
| Solid-liquid separationEngineering | – | – | – | – | – |
| Water reuse / wastewater recyclingEngineering | – | – | – | – | – |
| Pool water treatment plants (swimming pool technology in accordance with DIN 19643)Engineering | – | – | – | – | – |
| Brine treatment plantsEngineering | – | – | – | – | – |
| Well water treatment plantsEngineering | – | – | – | – | – |
| Backwash water treatment plants in accordance with DIN 19645 (full recycling)Engineering | – | – | – | – | – |
| Disinfection technology for swimming pools (electrolysis, chlorination, ozonation, UV)Engineering | – | – | – | – | – |
| Aeration systems (membrane pressure aerators, submersible motor aerators, surface aerators)Engineering | – | – | – | – | – |
| Well constructionEngineering | – | – | – | – | – |
| Retrofitting and optimisation of existing plantsEngineering | – | – | – | – | – |
Additional services
Reference customers
Quality Management
A documented quality management system (QMS) is in place in all departments; DIN and ISO standards serve as the governing rules. Plants are pre-assembled and tested before delivery at the headquarters plant, including function, hair catch and dye tests.
| Evidence | Hambühren |
|---|---|
| Documented QMS | |
| DIN 19643 (pool water) | |
| DIN 19645 (backwash water) | |
| BSFZ seal (R&D) |
Company History
- 1973
Foundation of the partnership 'Peter Christiansen Wasseraufbereitungstechnik' in a garage in Celle
- 1975
Move into the first own operating and production building in Westercelle
- 1980
Change of legal form to Chriwa Wasseraufbereitungstechnik GmbH
- 1983
Acquisition of a large company site in Hambühren
- 1988
Foundation of CUSS Chriwa Umwelt-Systemtechnik und Service GmbH
- 2011
Capacity expansion of a beverage production plant in Ukraine; drinking water treatment plant for herbicide retention for a North German municipality
- 2012
Water treatment plant for river and well water in Colombia
- 2016
Turnkey large-scale plant for an international beverage manufacturer in Phnom Penh, Cambodia; wastewater treatment plant for a brewery in Sansimion, Romania
- 2019
Start of implementation of a water treatment plant for a beverage manufacturer on Sakhalin
- 2020
Pressure boosting plant for the Münster municipal utilities; upgrading of an industrial wastewater treatment plant for a flavouring manufacturer in Italy; start of the pool water treatment for the Schwentinental outdoor pool
- 2021
Water treatment plant for a soft drink producer in Zambia; water treatment for a modern dairy in Germany; ISTISU mineral water production in Azerbaijan; completion of the Schwentinental outdoor pool
- 2022
Completion of the plant on Sakhalin; start of the renovation of an outdoor pool in Borssum/Emden
- 2024
BSFZ seal of the BMBF for research and development; completion of the outdoor pool renovation in East Frisia