References and projects from the KF Group

Indoor Wasch- und Pflegecenter mit Doppelwaschstraße bei Nebo

Deutsche Wertarbeit wird auch in anderen Teilen der Welt sehr geschätzt. Eine neue große Waschstraße ist jetzt mit der Technik von deutschen Herstellern ...

LKW Waschanlage bei der Spedition Bork

Es entstand ein leistungsfähiger LKW Waschpark für die eigene große Fuhrparkflotte...

Exhaust air extraction and treatment of a large sewage treatment plant

At the large sewage treatment plant in Cologne Stammheim, the old exhaust air systems were to be recombined and renewed. In this context, a new exhaust air treatment plant was built with photo-oxidation technology to remove odors and hydrogen sulphide.

Purification of exhaust air containing methanol

A cleaning solution containing methanol is used in the production of medical lenses. The resulting methanol vapours are extracted via the exhaust air duct and must be purified in order to comply with the limit value of 20 mg/m³ methanol before they are released into the environment. For this purpose, the exhaust air is led through the exhaust air purification module developed by uviblox, which consists of a UV purification stage with 120 UV-C lamps and a downstream activated carbon filter. Depending on the load of the exhaust air, the system switches the stages on and off.

Exhaust air purification system for odor reduction of exhaust gas containing CHC

In order to purify groundwater contaminated with CHCs, the water is first passed through a two-stage countercurrent desorption system in which the CHCs are converted into the gas phase. By means of UV oxidation, the pollutants are then oxidised and mineralised and the air can be released odourlessly into the environment.

Bau einer GAK-Filtration zur Elimination von Spurenstoffen

Die Stadt Gütersloh betreibt das Hauptklärwerk Putzhagen, welches eine Ausbaugröße von 150.600 EW und eine Anschlussgröße von 145.000 EW besitzt. Von der Stadt Gütersloh wird eine weitergehende Abwasserreinigung auf der Kläranlage Putzhagen angestrebt. Aufgrund der positiven Ergebnisse einer Konzeptstudie und den entsprechenden Vorversuchen hat die Stadt Gütersloh entschieden, die bestehende Abwasserreinigungsanlage Putzhagen um eine 4. Reinigungsstufe zu erweitern

Errichtung einer Pulveraktivkohle (PAK) - Anlage zur Spurenstoffelimination

Die Herforder Abwasser GmbH betreibt am Standort Goebenstraße in Herford eine Kläranlage mit einer Kapazität von 250.000 EW. Die Kläranlage wurde im Jahr 1994 nach dem Prinzip der biologischen Filtration (Biostyr®) errichtet. Im Rahmen der Beurteilung nach WRR wurden neue Auflagen festgesetzt, welche sich auf die Erstellung einer Anlage zur Elimination von Mikroschadstoffen beziehen. Nach Durchführung und Auswertung von Pilotversuchen wurde entschieden eine Pulveraktivkohle-Anlage (PAK-Anlage) als vierte Reinigungsstufe zur Spurenelimination zu errichten.

Groundwater treatment plant for the purification of PFC and BTEX

On the site of the "Old Port", in the central northern part of the former. From 2003 to 2018, groundwater contamination with BTEX was detected during investigations carried out at Tempelhof Airport. This is due to the handling of aviation gasoline (tank systems and tank farms) during the operating period of the "Old Port", from 1923–1945. In addition, MKW, PAH, LCKW, and PFT (perfluorinated surfactants) were detected at lower concentrations. PFT per-fluorinated surfactants (also PFC-perfluorinated compounds/chemicals) are available in concentrations of max. about 60 g/l contained in groundwater. The cause is the location of the renovation area "Old Port", downstream or by-stream of a former port. fire-fighting training grounds. PFCs have been used in extinguishing foams in fires of oil and fuel and are now largely banned.

Indoor Express-Waschcenter bei Glanzarena

Einer der leistungsfähigsten neuen Wasch-Standorte geht in Kempten in Betrieb. Auf dem Förderband der Express-Waschstraße werden Fahrzeuge in einem separaten Vorsprühkreislauf ...

Odor reduction of exhaust air from thick sludge loading

The exhaust air extracted from the screen building at the Ruhleben sewage treatment plant in Berlin is contaminated with hydrogen sulphide concentrations. During a preliminary planning phase, UV photo-oxidation was selected as the preferred process for implementation. UV photo-oxidation by uviblox GmbH treats odour-contaminated exhaust air containing hydrogen sulphide from the intake and lift of the screen building. Within the scope of the contract, this UV photo-oxidation replaces a 3-stage old biofilter system with a downstream activated carbon air filter.

Catalytic oxidation of chlorinated hydrocarbons (CHCs)

Within the scope of a groundwater remediation plant of Harbauer GmbH for the removal of hydrocarbons in the groundwater, uviblox supplied a system for the catalytic oxidation of chlorinated hydrocarbons from the exhaust air of a compact stripper as well as a reaction tank.

Neubau einer Umkehrosmoseanlage für das VW-Werk in Emden

Die vorhandene VE-Wasseranlage im VW-Werk Emden soll an den steigenden Wasserbedarf angepasst werden. Die Anlage wird in großen Teilen erneuert und erweitert, wobei die grundsätzliche Verfahrenstechnik beibehalten wird.
Die beauftragte Leistung umfasst alle erforderlichen Tätigkeiten wie:
• Demontagen von Bestandsanlagen, auch unter erschwerten Bedingungen
• Zerlegen, sortieren, transportieren und Bereitstellung zur Entsorgung von demontierten Bauteilen, Aggregaten, Rohrleitungen etc.
• Schaffung von Interimslösungen zur Aufrechterhaltung der Werksversorgung

Indoor Express-Waschcenter von Max Autowasch

Ein gelungener Umbau einer Waschstraße zur Express-Waschstraße mit Indoor Saugerhalle ...

Waschstraße im australischen Brendale

Deutsche Wertarbeit wird auch in anderen Teilen der Welt sehr geschätzt. Eine neue  Waschstraße ist jetzt mit der Technik von deutschen Herstellern ausgestattet worden. Umgesetzt wurde das Vorhaben an der Ostküste Australien Bredale (Queensland)...

Indoor Express-Waschcenter bei Auto-SPA in Arbon

Der vierte der erfolgreichen Auto-SPA Standorte in der Schweiz (Arbon). Ein leistungsfähiger Express-Waschstraßen-Standort mit großer Indoor Saugerhalle...

Prozesswasserbehandlung im Klärwerk Münchehofe

Die beiden neuen Reinigungsstufen Flockungsfiltration und Prozesswasserbehandlung auf dem Klärwerk Münchehofe zielen auf die Reste der in der biologischen Reinigung noch nicht komplett eliminierten Nährstoffe Stickstoff und Phosphor ab. Diese Nährstoffe werden in der Landwirtschaft als Dünger gebraucht, sind in den Gewässern aber genau deshalb unerwünscht. Für den Rest-Stickstoff ist die biologisch arbeitende Prozesswasserbehandlungsanlage errichtet worden. In ihr verstoffwechseln so genannte Planctomyceten isoliert von anderen Bakterien der biologischen Reinigungsstufe den vor allem als Ammonium aus der Entwässerung des Klärschlamms vorliegenden Stickstoff.

Disinfection of exhaust air from a wastewater treatment plant

Deutsche Extrakt Kaffee GmbH Berlin (hereafter DEK) has installed a biological wastewater treatment plant for the pre-treatment of its wastewater. Aerosols containing germs escape from the open aeration basins into the environment with a germ load of approx. 3,200 cfu/m³. This prompted DEK to supplement the biological wastewater treatment plant with a treatment of the exhaust air stream by means of an aerosol separator and UV disinfection system from uviblox.

Umstellung des Belüftungssystems der Kläranlage Stade auf Druckbelüftung

Die Abwasserentsorgung Stade führt die Umstellung des Belüftungssystems der Belebungsbecken 4 und 5 der Kläranlage Stade auf Druckbelüftung durch. Bei dieser Maßnahme ist der Austausch der alten Walzenbelüfter gegen feinblasige Druckbelüfter mit effizienten Druckluftaggregaten vorgesehen. Ziel ist eine größtmögliche Energieeinsparung mit entsprechend deutlicher Minderung der CO2-Emmissionen.

Remediation of highly ferrous groundwater with volatile halogenated hydrocarbons (VHHs) contamination

As part of a contaminated site survey in 1993/94, groundwater damage caused by volatile halogenated hydrocarbons (VHHs) was detected on the site, which has been used industrially for over 100 years. The polluted groundwater continues to contain very high iron and salt concentrations. At the end of 2019, Harbauer GmbH was awarded the contract for the remediation of contaminated sites and for the construction of groundwater remediation plant. You can find out more about the removal of vinyl chloride and other (VHHs) by means of desorption columns and catalytic oxidation in the following reference.

Neubau einer Anlage zur Fällung von Magnesium-Ammonium-Phosphat (MAP)

Das Klärwerk Steinhof war 2019 in einem Überlastungszustand und die Ablaufgrenzwerte für die Parameter Stickstoff und Phosphor konnten nicht sicher eingehalten werden. Um die Schlammbehandlung zu optimieren, erfolgte eine grundlegende Verfahrensumstellung, die Integration einer Thermodruckhydrolyse und eine Nährstoffrückgewinnung aus den Prozesswässern der Schlammentwässerung. Die Nährstoffe Stickstoff und Phosphor werden dabei in landwirtschaftlich nutzbare Düngerstoffe überführt. In diesem Zusammenhang erstellte die Bremer pro aqua für den Bereich der Phosphorelimination eine Anlage zur MAP-Fällung.

Groundwater remediation of volatile halogenated hydrocarbons

The Schkopau site of DOW Olefinverbund GmbH has been a very intensively used area of the large-scale chemical industry for decades. Due to disruptions in production processes, leaks, accidents and transport losses, there were contamination of the environment up to the contamination of groundwater.

Indoor Express-Waschcenter von Niagara in Aachen

Einer der leistungsfähigsten neuen Wasch-Standorte geht in Aachen in Betrieb. Auf dem Förderband der Express-Waschstraße werden Fahrzeuge in einem separaten Vorsprühkreislauf ...

Chlorine gas and hall air extraction system due to aggressive hall air

Clarios Recycling GmbH is a manufacturer of accumulators and has its own recycling plant for the recovery of raw materials from batteries and accumulators. When lead-acid batteries are accepted and stored in the storage boxes, it happens that chlorine gas is produced. In addition, in the recycling process of batteries and accumulators, sulfuric acid comes out, as a result of which acidic vapors are formed. Installed sensors register the concentration of chlorine gas and if the limit value is exceeded, the staff has to leave the hall so far.

Thanks to the newly installed extraction system, the chlorine gas is now extracted quickly and effectively, so that it is no longer necessary to leave production Hall D. In addition, a significant improvement in the quality of the hall air is achieved with the extraction.

Construction and groundwater treatment during soil remediation

In order to prevent a polluted outflow, the operation of a hydraulic safety device is required during soil remediation by means of large-bore bores. In order to comply with the discharge values for the direct discharge into the groundwater (re-infiltration), a groundwater purification plant from Harbauer was built for this purpose. For this purpose, two 20 m - deep safety wells are operated north and south of the rehabilitation area.

Exhaust air purification plant for the reduction of hydrogen sulfide (H2S)

In the context of the new construction project for the Emscher sewer (AKE), there was a requirement to reduce the hydrogen sulphide concentration in the air space of the sewer pipe by exhaust air extraction. The odor potentials typical of wastewater are present in the resulting exhaust air. To avoid odor nuisance to the surrounding area, the entire first construction section of the Emscher sewer was equipped with 33 UV systems from uviblox GmbH for exhaust air purification over a length of 26 km at 28 locations.

Groundwater treatment plant for the remediation of chlorobenzene damage

At the site of the former Niederau regional camp, an intolerable groundwater damage has occurred as a result of an industrial pre-use lasting about 140 years.
As a result of the preliminary investigations, the group of chlorobenzenes could be detected as a conductive pollutant in terms of the amount of substance and the hazard potential.

Indoor Express-Waschcenter bei EFA-LEY Carwash

Einer der leistungsfähigsten neuen Wasch-Standorte der EFA-LEY Carwash geht in Karlsruhe, Lorbeerweg  in Betrieb...

Indoor Wasch- und Pflegecenter mit Doppelwaschstraße bei AutoSPA

Deutsche Wertarbeit wird auch in anderen Teilen der Welt sehr geschätzt. Eine neue große Waschstraße ist jetzt mit der Technik ...

Indoor Express-Waschcenter bei LIGA Autowaschcenter

Als eines der bislang größten Indoor Waschcenter im anspruchsvollen Design und betont hochwertigem Auftritt präsentiert sich das LIGA Waschcenter in Wil. Die ca. 40 Meter messende Express-Waschstraße ...

Neubau einer Gasreinigungsanlage im Klärwerk Bülk

Die Landeshauptstadt Kiel betreibt am Standort Strande, Bülker Huk, ein Klärwerk mit einer Ausbaugröße von 375.000 EW. Strategisches Ziel des Betreibers ist es, die vorhandene, seit 1994 bestehende Anlage zur Gasverwertung zu erneuern. Zur energetischen Verwertung des Faulgases steht derzeit ein aus vier Modulen bestehendes Blockheizkraftwerk zur Verfügung, dessen Erneuerung aufgrund der Laufzeit und aufgrund der notwendigen Anpassung an die geänderten Faulgasmengen jetzt ansteht. Dabei soll die Gasreinigungsanlage als vorgezogene Maßnahme in Betrieb gehen, um den Auflagen der Genehmigungsbehörde, hinsichtlich der TA-Luft und des Formaldehydwertes im Abgas, nachzukommen.

Biological in-situ groundwater remediation

In order to control the implementation of a biological in-situ groundwater remediation on the site of the former glass factory in Achern, a modular remediation plant was manufactured in two insulated ISO sea containers. There are 5 production wells and 14 infiltration wells at the rehabilitation site.

The principle of biological in-situ remediation is based on the stimulation of pollutant-degrading microorganisms in the groundwater. For this purpose, groundwater is removed in the polluted area, nutrients are added and the area re-infiltrated. With the help of frequency-controlled well pumps and magnetic-inductive flow meters, the individual delivery rates between 0.5 and 3 m3/h are automatically regulated. The maximum total conveying rate of the remediation plant is up to 15 m3/h.

Treatment of benzene and hydrogen sulfide contaminated exhaust air

Very strong-smelling exhaust air contaminated with benzene and hydrogen sulfide is sucked out of a sewage shaft on the site of the power plant Schwarze Pumpe in Sachsen, Germany and is then purified via an activated carbon filter stage.

The concept of exhaust air purification provides that the air is purified in a two-stage filter system, consisting of working and police filters to concentrations below the permissible limits below the german regulatory “Technische Anleitung zu Luftreinhaltung (TA-Luft).

Groundwater treatment plant for the purification of pesticides in a drinking water protection area

Since 2000, the pesticides mecoprop and dichlorprop have been detected in groundwater in the area of the Brunnengalerie Ost at the site of the Wuhlheide waterworks. A groundwater treatment plant was built and put into operation in 2002 to avert danger. Due to the construction of new defensive wells (Mec 1-3) and the resulting changed hydraulic conditions as well as the increased pollutant concentrations, Harbauer GmbH received the order for the construction of a new groundwater treatment plant at the end of 2017.

In order to protect the incoming flood, contaminated groundwater must be pumped out of three wells and treated on site in the groundwater treatment plant.

Remediation of groundwater contaminated with chlorinated hydrocarbons

A site of a chemical plant in the "Old Country" a region in the east of Germany has been a very intensively used area of the chemical industry for decades. Due to disruptions in production processes, leaks, accidents and transport losses, contamination of the environment up to the contamination of groundwater occurred. Chlorinated hydrocarbons play an essential role here. The high iron concentrations in the groundwater make it difficult to treat the water at the site.

Process water and rainwater treatment plant in modular container design for removal of heavy metal

Contaminated rainwater and process water is produced on the site of a soil cleaning plant. This is primarily contaminated by dissolved heavy metals, as well as various hydrocarbons (HCs), adsorbable organically bound halogens (AOXs), aromatic hydrocarbons (BTEX -benzene, toluene, ethylbenzene, xylenes) and volatile chlorinated hydrocarbons (CHC/VOC ).

To clean the groundwater, Harbauer has designed and built a cleaning system in modular container design, in which different cleaning stages for the treatment of the pollutant mixture were combined.

Neubau einer Betriebsabwasserbehandlung in der Metallindustrie

Die Deutsche Nickel GmbH produziert heute am Standort Schwerte Halbzeuge aus Nickel und Nickellegierungen. Die dort anfallenden Produktionsabwässer werden gemeinsam mit Abwässern einer anderen Firma in einer zentralen betriebseigenen Abwasserbehandlungsanlage behandelt und anschließend in die kommunale Kanalisation geleitet. Um auch zukünftig sowohl eine technisch sichere als auch wirtschaftlich attraktive Abwasserreinigung zu gewährleisten, realisierte die Deutsche Nickel GmbH den Neubau einer Anlage, die ausschließlich die Abwässer der Deutschen Nickel behandeln soll.

Exhaust air purification plant for the degradation of solvents (VOC)

In the production plant at the Weingarten site of KLEBCHEMIE M. G. Becker GmbH &Co. KG, process-typical VOC emissions with concentrations of up to 12 g/m³ are generated during the processing of adhesives. These are collected and degraded by means of catalytic oxidation with an upstream UV stage in order to comply with the limit values according to TA Luft (Technical Instructions on Air Quality Control).

Exhaust air purification system for odor elimination

The exhaust air extracted from the screen building at the Ruhleben sewage treatment plant in Berlin is contaminated with hydrogen sulphide concentrations. During a preliminary planning phase, UV photo-oxidation was selected as the preferred process for implementation. UV photo-oxidation by uviblox GmbH treats odour-contaminated exhaust air containing hydrogen sulphide from the intake and lift of the screen building. Within the scope of the contract, this UV photo-oxidation replaces a 3-stage old biofilter system with a downstream activated carbon air filter.

Exhaust air purification system against high hydrogen sulfide values

Three sand traps are operated at the Schönerlinde sewage treatment plant. In the area of these sand traps, exceedances of the permissible hydrogen sulfide concentrations were detected. The emissions are to be captured by an on-site cover and the hydrogen sulfide is to be removed from the exhaust air stream with the exhaust air purification system. The task of the exhaust air purification system is to extract the gas space from the sand trap and clean the contaminated exhaust air. The purified exhaust air is then released to the environment.

Hydraulic rehabilitation of an outflow vane

In the area of the premises of BASF Coatings Oldenburg GmbH, contamination of groundwater with VHH (volatile halogenated hydrocarbons), in particular tri-and tetrachloroethene, has been detected, which is being rehabilitated by a hydraulic measure on the premises. During further investigations, it was found that the groundwater contamination had spread to such an extent that it was not covered by this measure. According to the risk assessment carried out, measures are required to secure the outflow vane with a total of 2 delivery wells.

Groundwater purification of VOCs

Groundwater contamination by LCKWs exists at the "Alte Königsheide Süd" site in Berlin-Treptow. A GWR was built in the 1990s to prevent the spread of the pollutant plume to the wells of the Johannisthal drinking water plant located in the downstream area. Since then, a well-defence gallery has been operated.

Two desorption columns are used to eliminate pollutants.

Groundwater purification of VHHs

The Schkopau site of DOW Olefinverbund GmbH has been a very intensively used area of the large-scale chemical industry for decades. As a result of the use of the production facilities, leaks, accidents and transport losses, contamination of the environment and, last but not least, contamination of groundwater with components of the production process occurred. Chlorinated and aromatic hydrocarbons play an important role in this process. As a result of a tender, the company Harbauer GmbH was commissioned with the construction and operation of a groundwater purification plant.

Cleaning of exhaust air containing solvents (VOC)

During the production of propellant charges in the civil and military sector, exhaust air containing solvents (VOCs) is released. The resulting vapours are extracted via the exhaust air duct and were previously eliminated by means of a thermal afterburning system. This was replaced by a new plant with uviblox technology. Both direct and regenerative photo-oxidation are used.

Indoor Express-Waschcenter bei AutoSPA in Chur

Der erste der erfolgreichen Auto-SPA Standorte in der Schweiz (Chur). Ein leistungsfähiger Express-Waschstraßen-Standort mit Indoor Saugerhalle.

Neubau des Wasserwerks Bexhövede

Die swb Netze Bremerhaven GmbH & Co. KG betreibt das Wasserwerk Bexhövede zur Versorgung des südlichen Versorgungsbereiches der Stadt Bremerhaven mit Trink- und Brauchwasser. Das Wasserwerk wurde bereits im Jahr 1893 in Betrieb genommen und zuletzt im Jahre 1967/68 erweitert. Das Wasserwerk weist nun einen erheblichen Sanierungsbedarf hinsichtlich der Anlagentechnik auf. Auf der Grundlage von erstellten Risikoanalysen und Optimierungsuntersuchungen wird das Wasserwerk, auf dem neben dem bestehenden Wasserwerk gelegenen Grundstück, vollständig neu errichtet.

Indoor Express-Waschcenter von Dico in Troisdorf

Ein besonders leistungsfähiges Indoor Waschcenter in wertiger Beton-Optik entstand bei Dico in Troisdorf. Die Express-Waschstraße wird von der Nais Doppelanlage ...

Neutralization plant for the neutralization of the Scheibesee

In this project, Lake Scheibesee, a renatured open-cast mine, which is acidified by accompanying materials from open-cast lignite mining (pH value of about 2.7), was rehabilitated.

The project was carried out in a project group, GMB mbH was the coordinating part, IWSÖ, an institute of BTU, took over the sea monitoring and the evaluation of the data, Harbauer GmbH designed, built, and operated the plant.

Groundwater treatment plant for CFC contaminated groundwater

At the Ostendstraße site in Berlin Köpenick, CFC (chlorofluorocarbons) damage was detected in groundwater in 2005, which has been hydraulically rehabilitated by the Harbauer GmbH groundwater purification plant since 2013. The measure serves to protect the transfer path to the Wuhlheide water treatment plants.

The raised water's CFC contaminations are removed using a three-stage desorption unit, and the resulting process exhaust air is burned in a catalytic oxidation plant to produce water, carbon dioxide, and hydrogen halides. The process air for stripping is circulated so that no exhaust air is produced.

Construction of 5 exhaust air purification plants

In the course of years of industrial use, a complex contamination of the soil and groundwater has occurred at the Schwarze Pumpe site. This damage is being repaired on site via a groundwater treatment plant (GWRA). During the operation of this GWRA, benzene-and hydrogen sulfide-containing exhaust air is produced.

In order to ensure compliance with legal environmental and occupational health and safety requirements, Harbauer GmbH was commissioned with the cleaning of the exhaust air containing pollutants.

Anaerobe Industrieabwasserbehandlung in der Brauindustrie

Die Fa. Oettinger produziert am Standort Mönchengladbach Bier und Erfrischungsgetränke. Hierbei fällt im Sudhaus sowie in der Abfüllung Abwasser an. Dieses Abwasser wird teilweise gesiebt und dann der städtischen Kläranlage zugeführt. Der Energiegehalt des Abwasserstroms ist so hoch, dass eine energetische Nutzung unter heutigen Bedingungen sinnvoll ist. Hierfür wurde auf dem Betriebsgelände eine Anaerobe Abwasservorbehandlungsanlage errichtet, die durch das im Reaktor entstehende Biogas mit anschließender Nutzung im Kesselhaus für eine effiziente Energierückgewinnung sorgt.

Groundwater treatment plant for the purification of BTEX and PAH

At the water treatment plant at the gas plant in Luxembourg, an oil-containing drilling emulsion was extracted, which was then cleaned.

Chemical washing for the purification of ammoniac-containing exhaust air

For the emptying of a large ammonia storage tank (about 5,000 m3), a chemical wash with 20% sulfuric acid was designed and implemented for the purification of ammonia-containing exhaust air.

During the chemical washing, the ammonia-containing exhaust air was brought into contact with the washing liquid (sulfuric acid) in countercurrent in a PE column, and the ammonia was subsequently dissolved from the exhaust air to form an ammonium salt in the washing liquid.

Groundwater treatment plant for the purification of MKW and PAH

Due to the decades of use of the former military airfield Großenhain, extensive soil and groundwater contamination occurred in the area of the KS 6 tank farm on a total area of 20,500 m2 and an affected volume of about 74,000 m3 by MKW, BTEX, and other nuclear power plants as well as by PAK.

The rehabilitation area is crossed by parallel ditches, which are alternately used as extraction and infiltration ditches.

Groundwater purification of MKW, BTEX, PAH, and phenols

Among the plots Kanalstr. 43-51 in Berlin-Neukölln, there is soil and groundwater contamination with BTEX, LHKW, PAK, MKW, and PCB. A groundwater protection measure is being carried out at the site to protect the adjacent Teltow Canal. The pollutants are in the wells at concentrations of up to 350 mg/l MKW, 60 mg/l BTEX, 180 mg/l LHKW, and 100 mg/l PAK.

Groundwater is lifted from four wells and cleaned via a groundwater treatment plant.

Exhaust air purification system for the reduction of odor emissions

The production of spice mixtures by Unilever Deutschland GmbH in Heilbronn generates various odour emissions with a concentration of about 1.1 million GE/m³, which are a strong nuisance for employees and residents. uviblox GmbH was commissioned to plan and build a UV oxidation plant that removes the emissions with a purification efficiency of over 90 %.

Construction water treatment plant for the removal of suspended solids and oil

At the Stockholm location, Harbauer GmbH has built and operated a plant for the treatment of construction water from a tunnel construction project.

The aim of the plant was to remove suspended solids and the oil phase from the wastewater. For this purpose, the water was passed over a 75 m3 sedimentation tank in the first process step according to a distributor template. This served to separate the floating oil phase as well as remove suspended solids.This was followed in the second process step by a further sedimentation tank for sedimentation of the remaining suspended solids.

Groundwater treatment plant for the removal of VOC, VC and BTEX

Decades of laundry operation on Kiefholzstr./Krüllstr. in Berlin-Treptow/Köpenick resulted primarily in LCCW contamination in the soil and groundwater.
For cleaning the groundwater, Harbauer has built a groundwater purification plant at this location for a short time.

The contaminated water was conveyed to the plant via a regulated well pump and the flow was recorded with an inductive flow meter.

The first process stage consisted of two desorption columns connected in series, which converted LHC pollutants into the gas phase by the countercurrent principle. The column sumps served as a template for the pressure increase stages.

Exhaust air purification of solvent-containing exhaust air in the chemical industry

The chemical industry for sealants and adhesives produces solvent-containing exhaust air of approx. 12,000 m³/h with pollutant concentrations of 300 to 700 mg/m³ from production areas and cleaning work. uviblox GmbH was commissioned to plan and construct a system for VOC removal by means of UV photooxidation in order to achieve pollutant concentrations below a value of 50 mgC/m³.

Groundwater treatment plant for the purification of chromium, PFT, PFOA

The groundwater remediation plant at Hennekamp in Düsseldorf was built in 2009 to protect against chromium contamination. The main stress component is chromium (VI) from electroplating contamination. The chromium contamination was accompanied by a PFT load (per fluorinated surfactants) including PFOA.

The plant works with the following stages of treatment:

• GW-pumping over 3 wells
• Reduction stage (reduction of chromium (VI) to chromium (III) with sodium dithionite)
• Gravel filter stage
• Absorption stage for chromium removal
• Water activated carbon stage for PFT and PFOA removal

Groundwater treatment plant for the removal of benzene

At the Terneutzen site, the exhaust air from its own wastewater treatment is treated for the chemical company DOW. Concentrations of up to 400 mg/L of benzene are transferred from the wastewater to the exhaust air. The exhaust air purification system, a catalytic oxidation system, consists of:

• The reactor for receiving the catalyst
• Air-to-air Heat Exchanger
• Blower for raw air
• Desulfurization unit
• LEL Monitoring

Remediation of chloraniline damage by means of Pump & Treat

Between 1870 and 1990, the site at Hauptstraße 9-10 in 10317 Berlin was used, among other things, for paint and varnish production. The soil today is contaminated with a mixture of chloranilines, chlorobenzenes, and chloronitrobenzenes, typical for such farms.

A pump-and-treat measure was implemented for the renovation.
By pumping out contaminated water in the outflow, an additional groundwater sink is created, which ensures that further contaminated water flows in.

Biological groundwater purification of alkylphenols

As a result of many years of commercial use of large areas of a former industrial estate. paint resin factory as well as partial surfaces of the former. Before 1990, considerable deposits of aromatics (BTEX and alkylbenzenes), polycyclic aromatic hydrocarbons (PAHs) and, above all, phenols (alkylphenols) entered the subsoil at the site of the diesel engine plant in Schönebeck (Elbe). The concentrations of both phenols are up to 120 mg/l and for BTEX, up to 10 mg/l.

The contaminated water is removed from three drains, then fed to the plant where it is cleaned and infiltrated into the subsoil via another horizontal drainage. This creates an underground flushing field in order to remove further pollutants from the soil matrix and clean them in the system.

Groundwater treatment plant for the removal of phenazone, BTEX, H₂S

The renovation is carried out on the basis of the underground de-icing and pollutant elimination process (UES process). In addition to on-site cleaning, essential pollutant elimination takes place in-situ.

Groundwater treatment plant for the purification of VHH and benzene

Due to years of continuous use as a chemical industry site, a complex contamination of pollutants in groundwater developed at the Berlin Chemie site.

Harbauer has designed and built a plant for the remediation of pollutant contamination and has been operating it since 2004.

Upstream deironing, a multistage desorption plant with downstream biological treatment, arsenic removal, and a safety activated carbon stage for HCH adsorption are the plant's process stages.

Groundwater treatment plant for the removal of arsenic and cyanide

Harbauer GmbH has been operating a groundwater remediation plant at the Lacufa site since 2000, with a plant availability of 99%.

The main problems of contaminated groundwater are the very high arsenic and cyanide loads, accompanied by a strong suspended matter load.

For cleaning, 18 speed-controlled pumps first convey the contaminated groundwater into the groundwater treatment plant at a constant flow rate.
In the first process step, the water is sent via a corrugated plate separator in order to free the water from solids and suspended solids.

Desorption and exhaust gas catalysis of CHC and BTEX

As part of the groundwater remediation in the Spreeknie Technology and Start-up Center, CKW, CFC, and BTEX loads were cleaned.

Biological groundwater treatment of BTEX and PAH

On the site of today's Ernst-Thälmann-Park in the Prenzlauer Berg district lies one of the largest groundwater damage in Berlin. Because of the long-term use of the site as a gas plant and improper dismantling, the groundwater is very heavily contaminated with typical gas plant-specific pollutants such as polycyclic aromatic hydrocarbons (PAH), BTEX, and mineral oil hydrocarbons (MKW). In addition, there are loads containing ammonium and cyanides. On behalf of the Berlin Senate, Harbauer GmbH has been operating a groundwater purification plant at the site since 2004, which was supplemented in 2022 by an overgrown soil filter to remove ammonium.