Winkelnkemper
GmbH

Winkelnkemper GmbH is an owner-managed, value-oriented company with over four decades of experience in underground water treatment.

Quality since 1984

Heute

Winkelnkemper GmbH, pioneer and market leader in underground water treatment using the FERMANOX® process, can now look back on 40 years of history.

Over 10,000 FERMANOX® water treatment systems have now been sold and there are a large number of satisfied customers with FERMANOX® systems that have been operating maintenance-free and without repairs for decades.

2017

FERMANOX is participating alongside Karlsruhe University of Applied Sciences, the Fraunhofer Institute and Karl Spiegl GmbH & Co.KG as the German project partner for the WaKap research project in Vietnam.

The project began on September 1st, 2016 and will run for three years.

In Vietnam, there is poisonous arsenic in the groundwater.

On July 9th, 2017, the first pilot plant was put into operation with the help of Winkelnkemper GmbH. After one month of use of the plant, the arsenic content is now stable at drinking water levels. In addition, iron can no longer be detected in the water. The FERMANOX process keeps the arsenic in the soil and extracts groundwater of drinking water quality.

You can find more information at WaKap.

2017

The main topic of the conference organized by FIGAWA in Mannheim was the creation of water/water heat pump systems.

Dr.-Ing. Torsten Winkelnkemper gave a specialist lecture on the subject of underground iron removal for water/water heat pumps.

Friedrich Wenner GmbH & Co.KG from Versmold was also discussed as a practical example. This company has a groundwater heat pump for heating buildings and direct cooling of printing machines. A FERMANOX system type WV 100 professional is used to treat water to remove iron and manganese.

2016

Assembly of a reverse osmosis membrane in Vietnamese company SDVICO.

Project partner of the research project WaKap.

Winkelnkemper GmbH is participating alongside Karlsruhe University of Applied Sciences, the Fraunhofer Institute and Karl Spiegl GmbH & Co.KG as the German project partner for the research project “WaKap” in Vietnam.

The project begins on September 1st, 2016 and will run for 3 years.

WaKap is part of the BMBF funding measures “Sustainable technologies and concepts for increasing water availability through water reuse and desalination”. In Vietnam, the project is supported by the Vietnamese-German University in Ho Chi Minh City and by the company SDVIC.

In Vietnam, there is poisonous arsenic in the groundwater. Winkelnkemper GmbH would like to provide two FERMANOX test plants. These will be used for underground de-arsenic removal. The FERMANOX process keeps the arsenic in the soil and produces groundwater of drinking water quality.

The aim of the project is to develop an innovative modular system for desalination of groundwater, seawater and brackish water. In addition, several pilot plants are to be created.

By combining capacitive deionization and reverse osmosis, energy consumption is to be massively reduced and the availability of drinking water increased compared to existing desalination processes.

    The project is divided into the following steps:

  1. Pilot tests and laboratory tests in Germany, with model water
  2. Computer-based system analysis of the combination processes
  3. Concept for renewable energy supply
  4. Development of an evaluation methodology for sustainability assessment
  5. Overall ecological and economic evaluation
  6. Piloting in Vietnam
2015

On June 9th/10th, 2015, a meeting of the DVGW technical committee “Water extraction” will take place at bnNETZE GmbH (badenova) in Freiburg i. Br.

On the second day, Dr.-Ing. Torsten Winkelnkemper will give a specialist lecture on the topic of underground iron removal and manganese removal (UEE).

2012

FERMANOX® is being used for the first time by the waterworks Wasserversorgung Grenzland Südost (Graz, Austria) to enrich groundwater with iron- and manganese-free water.

2010

Dr.-Ing. Torsten Winkelnkemper takes over the management of the company.

2009
Water treatment for the Federal Institute for Materials Research and Testing, Berlin; treatment capacity: 500 m³/day Company certified according to ISO 9001 by the DVGW.
The implementation of the quality management system corresponds to our lived quality and customer orientation as well as our permanent striving for performance improvement.
2008
  • Water treatment for the Müritzeum (Waren), Germany’s largest freshwater aquarium: Treatment capacity: 190 m³/day
  • Successful treatment of extremely high manganese levels: Schloss Holte-Stukenbrock, NRW: Raw water manganese content: 11.54 mg/l; Pure water manganese content: 0.017 mg/l (after 3.5 months)
2006

First use of FERMANOX® systems for heating and cooling: A process combination of FERMANOX® systems with groundwater heat pumps, which is a particularly highly efficient heating method compared to conventional heating and cooling methods.

2005

Successful treatment of an extremely high ammonium concentration, Gramsbergen, Netherlands, (electroplating):

  • Raw water ammonium content: 4.9 mg/l;
  • Pure water ammonium content: 0.09 mg/l
2002
  • First-time fitting of a waterworks with a FERMANOX® system.
  • Successful use of a FERMANOX® system to reduce arsenic: FERMANOX® succeeds in reducing arsenic solely through natural underground water treatment; Schwarzenbrock, Bavaria: raw water arsenic concentration: 0.27 mg/l
2001 – 2003
German Federal Environmental Foundation (DBU) research project:
Optimization of the underground water treatment process (in-situ process) for decentralized drinking water production in collaboration with FERMANOX® and the University of Duisburg and the University of Stuttgart.
2001

Successful treatment at very low pH; Epe, Netherlands;

Raw water pH: 5.94

2000

Gold Medal of Expo 2000

The underground water treatment (UEE) process was awarded the Expo 2000 Gold Medal – an innovation award for global projects:

Award for particular environmental friendliness through intelligent use of resources, for minimal use of the natural environment, for complete waste avoidance and for minimal land use.

1999

First-time equipment for a food processing company: Poultry slaughterhouse, Barnsdorf

1998

FERMANOX®-type WV professional

Sale of equipment for industrial use in high-quality stainless steel.

1996

FERMANOX®-Company building in Wadersloh

Construction of the new company building at the current location in Wadersloh.
Successful treatment with extremely high iron and manganese concentrations:
Letschin (Brandenburg):
  • Raw water iron content: 36.88 mg/l
  • pure water iron content: 0.032 mg/l
  • raw water manganese content: 8.54 mg/l
  • pure water manganese content: 0.006 mg/l
1994

First construction of systems with up to 14 injectors for large treatment capacities (up to 500 m³/day – depending on water quality).

1993

Start of sales in the Netherlands.

1992

Sale of the first systems for alternating operation with two boreholes, initially to the agricultural target group.

1991

Patent granted to Heinrich Winkelnkemper for the underground iron and manganese removal (UEE) process for operation with a borehole.

1989

Establishment of our own laboratory to evaluate water samples.

1987

Start of cooperation on scientific issues with Prof. Dr. U. Rott, University of Stuttgart.[1]

This laid an important foundation for our current know-how on underground iron and manganese removal from groundwater.

 

[1] Prof. Dr. U. Rott, seinerzeit Prof. an der Technische Hochschule Darmstadt, später Universität Stuttgart, Institut für Siedlungswasserbau, Wassergüte und Abfallwirtschaft.

1984

First deliveries of FERMANOX® systems

Company foundation and sale of the first FERMANOX® system for underground iron and manganese removal (UEE).
Inspired by the first applications of underground water treatment processes at Scandinavian waterworks, the engineer Heinrich Winkelnkemper developed a compact system for underground iron removal. The good functionality of this simple and maintenance-free system convinced him and the users of the first test systems.

And so Heinrich and Gerda Winkelnkemper founded the company Winkelnkemper GmbH in 1984. They sold the first systems for underground iron and manganese removal under the newly created FERMANOX® brand. In the first few years, only systems for smaller outputs were created for operation with just one borehole. The customers were primarily private households and farmers. The maximum output of the systems was around 10 m³/day.

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