Modular system technology for recovering raw materials from liquids and gases
Four-E Holding GmbH
Hann. MündenNew on Amplifa
About Four-E
Four-E Holding GmbH, based in Hann. Münden (Kasseler Str. 47), develops and markets modular system technologies for the separation and treatment of substances from fluids and gases (resource recovery). The product family includes GasFrak, a process for recovering methane from the wash water of biogas upgrading plants, which according to the company has been proven in industrial application since 2015. BioFrak is used for treating municipal and industrial wastewater and removes phosphates, nitrates and trace substances without chemical precipitants; the systems are available as mobile and industrial variants. The process is preceded by an analysis of the customer's process liquids in order to tailor the application to them. The systems can be integrated modularly into existing plants and are intended to make even low-concentration raw materials commercially usable. In addition to development, planning and construction, the company holds patents and protective rights in the aforementioned field. The company is in liquidation; insolvency proceedings have been opened over its assets.
- Site
- Hann. Münden
- Processes
- GasFrak – recovery of methane from biogas upgrading wash water, BioFrak (wastewater) – mobile plant for elimination/extraction of phosphates, nitrates and, BioFrak (industrial) – wastewater treatment without chemicals, Analysis of process liquids for treatment and adaptation of the application, Modular system technology for extraction of raw materials from fluids (water) and gases, Analysis of process liquids, Resource recovery from liquids and gases (GasFrak: methane recovery from biogas wash water), BioFrak: wastewater treatment without chemicals/precipitants (phosphates, nitrates, trace
- Materials
- GasFrak – Methane Recovery, BioFrak – Mobile Wastewater Plant, BioFrak – Industrial Wastewater Plant, Analysis of Process Liquids
- Founded
- 2020
- Employees
- 2-10
- Industries
- Renewable Energy, Municipal Wastewater Treatment, Industrial Wastewater Treatment, Biogas Upgrading
- 01
Analysis of the customer's process liquids
- 02
Design of the application
- 03
Planning and construction of the modular plant
- 04
Commissioning in existing plants
- 05
Sales and related services
Processes and Technologies
GasFrak – Methane Recovery
Recovery of methane from the wash water of biogas upgrading without chemical additives.
BioFrak – Mobile Wastewater Plant
Mobile plant for the elimination/extraction of phosphates, nitrates and trace substances without precipitants.
BioFrak – Industrial Wastewater Plant
Industrial plant for chemical-free wastewater treatment for municipal and industrial applications.
Analysis of Process Liquids
Analysis of the customer's liquids for further treatment and adaptation of the application.
Locations
Hann. Münden
DEHeadquarters
- Materials
- Liquids, gases
- BioFrak (mobile plant)
- BioFrak (industrial plant)
- GasFrak (industrial plant)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| GasFrak – recovery of methane from biogas upgrading wash waterEngineering | – | – | – | – | Methane, Wash water |
| BioFrak (wastewater) – mobile plant for elimination/extraction of phosphates, nitrates andEngineering | – | – | – | – | Phosphates, Nitrates, Trace substances, Wastewater |
| BioFrak (industrial) – wastewater treatment without chemicalsEngineering | – | – | – | – | Wastewater |
| Analysis of process liquids for treatment and adaptation of the applicationTesting | – | – | – | – | Process liquids |
| Modular system technology for extraction of raw materials from fluids (water) and gasesEngineering | – | – | – | – | Water, Gases |
3 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mobile plant BioFrak | Four-E Systems BioFrak | – | – | – | Hann. Münden |
| Industrial plant GasFrak | Four-E Systems GasFrak | – | – | – | Hann. Münden |
| Industrial plant BioFrak | Four-E Systems BioFrak | – | – | – | Hann. Münden |
Additional services
History
- 2020
Registration of Four-E Holding GmbH on 24.07.2020, originally based in Munich (AG München HRB 258105).
- 2021
Register change to the District Court of Göttingen (HRB 206450); relocation of registered office to Hann. Münden.
- 2022
Harald Klein becomes managing director; Gürsel Günes leaves the management.
- 2023
Harald Klein leaves the management (20.06.2023); opening of liquidation (29.09.2023).
- 2026
Opening of insolvency proceedings by order of the District Court of Göttingen (case no. 74 IN 73/23 HMUE, order dated 11.02.2026).