References and Projects
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.
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Municipal wastewater, Air
2 x 10.500 (m3/h)
Odors, H₂S
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.
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Air
5.000 (m3/h)
Methanol
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.
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Groundwater, Air
1000 (m3/h)
Benzene, CHC, Vinyl chloride
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.
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Municipal wastewater, Air
3.000 (m3/h)
Odors, VOC
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.
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Groundwater, Air
400 (m3/h)
CHC
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.
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Air
1800 (m3/h)
Bacteria
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.
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Municipal wastewater, Air
5.000-50.000 (m3/h)
Odors, H₂S
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).
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Air
400 (m3/h)
VOC
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.
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Municipal wastewater, Air
6.000 (m3/h)
Odors, VOC
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.
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Air
5.500 (m3/h)
VOC
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 %.
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Air
2.000 (m3/h)
Odors
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.
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Air
12.000 (m3/h)
Odors, VOC