References and projects
Demineralized and Silica-free Water for Freshwater and Marine Aquariums
At the turn of the year 2022/2023, two (further) branches of a well-known German pet shop were equipped with water treatment systems. These systems are used to supply the aquariums with supplementary water to compensate for evaporation losses and as initial water when setting up new aquariums or for the necessary partial water exchange. The compact systems contain the necessary fine filtration, system separation, double softening and reverse osmosis system as a ready-to-connect unit on a space-saving stainless steel frame, which minimizes installation costs and time.
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Process water
0,5 (m3/h)
Drug residues, Hormones, Pesticides, Silicates
Chromate Decontamination and Neutralization Precipitation with Carbonic Acid
A metal processing company produces alkaline waste water containing chromium. In 1994, WEIL Wasseraufbereitung GmbH (then WEIL Industrieanlagen GmbH) designed and built a wastewater treatment system based on previous laboratory tests. Since then, the highly alkaline wastewater containing chromium(VI) oxide has been treated to such an extent that it can be discharged indirectly.
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Process water
1 (m3/h)
Chromium
Chlorine Gas Extraction of a Battery Recycling Plant
At a facility that recycles lead from old car batteries, the batteries are crushed. This usually produces sulphuric acid vapors, which make it necessary to wear respiratory protective equipment. In some cases, other batteries, so-called incorrect disposals, are crushed, releasing toxic chlorine gas. WEIL Wasseraufbereitung was commissioned to design and install a chlorine gas extraction system with separation of the sulphuric acid aerosols.
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Air
30.000 (m3/h)
Chloric gas, Sulfuric acid
Well Water Treatment and Water Saving Through Water Reuse
A manufacturer of special textiles for industrial use has significant water requirements and wastewater generation during production. On the one hand, groundwater extraction in the region is limited due to a water protection area, which forces the manufacturer to introduce water-saving measures in process water treatment. Secondly, the limit value for chloride in the treated wastewater, which is discharged directly, was lowered by the lower water authority, forcing the company to reduce the chloride load of the process and thus wastewater. WEIL Wasseraufbereitung was commissioned to design and construct a suitable process water treatment system.
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Process water
60 (m3/h)
Mineral salts, Silicates, Total hardness
Decentralized Drinking Water Treatment Plant in Mali
An anonymous client commissioned WEIL Wasseraufbereitung to construct a decentralized drinking water treatment plant at a location in Mali. The aim was to treat brackish groundwater containing manganese, iron and arsenic to drinking water quality.
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Drinking water
3 (m3/h)
Arsenic, Iron, Manganese, Mineral salts
Saving Water and Energy by Optimizing the Existing Plant
Saturated steam and cooling water are used for the production of system elements made from expanded polypropylene. The condensed steam and cooling water are returned to the cooling water basin after the production process. The process requires a lot of municipal drinking water and energy. At the same time, wastewater is produced. WEIL Wasseraufbereitung was commissioned to optimize the water and energy cycle of the plant.
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Process water
22 (m3/h)
Decentralized Seawater Desalination System in the Baltic Sea
WEIL Wasseraufbereitung was commissioned to build a decentralized seawater desalination system for the production of drinking water. The drinking water is used by the pilots at a pilot station in the Baltic Sea. The special feature is the location on a lighthouse on a small artificial island off the mainland.
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Drinking water
0,1 (m3/h)
Mineral salts
Ultrapure Water Treatment for Hydrogen Electrolysis
A well-known manufacturer of hydrogen electrolysers needs ultrapure water treatment for its development department and final inspection. WEIL Wasseraufbereitung was commissioned for this purpose.
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Process water
0,12 (m3/h)
Mineral salts, Total hardness
Treatment of Oil-containing Eastewater from the Bogie Cleaning of Trams
In a municipal transport company, the bogies of the trams are regularly cleaned and then serviced. During cleaning with high-pressure nozzles using drinking water and cleaning agents, oil-containing wastewater is produced, whereby the hydrocarbons are emulsified in the water. Weil Wasseraufbereitung was commissioned to design and install a treatment plant to remove the hydrocarbons from the wastewater.
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Industrial effluent
0,5 (m3/h)
Hydrocarbons, Oil
Facility for Removing Heavy Metals from Precipitation Water
Despite daily cleaning of the yard areas with wet sweeper machines, the rainwater that accumulates on the premises and roof areas of an old battery recycling company is contaminated with lead and other heavy metals. Weil Wasseraufbereitung was commissioned to plan and construct a rainwater treatment plant to minimise the entry of heavy metals into the nearby receiving water. Due to the limited space available on the customer's premises, the available floor space was limited and meant that the entire plant had to extend over three levels with intermediate floors made of a steel structure. The planning and execution of the steel structure to accommodate the entire plant was part of the planning and delivery scope.
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Industrial effluent
25 (m3/h)
Heavy metals