Task
Walki Ekopak S.A. is a renowned company specializing in the production of industrial and consumer packaging. With a wide range of sustainable packaging solutions made from fibers and biopolymers, Walki Ekopak S.A. serves customers worldwide.
As part of our commitment to environmental protection and strict compliance with all applicable regulations, Walki Ekopak S.A. has made significant investments in innovative wastewater treatment technologies. These advanced technologies enable proper discharge into the public sewer system, ensuring not only the protection of our environment but also full compliance with all legal requirements.
Design data
Preparation quantity:
- 4m3/d
Target parameters:
- Neutralization
- Reduction of heavy metals > 90
- Compliance with the limit values for indirect discharge into the sewer
Solution & implementation
Our comprehensive process for cleaning and treating cleaning wastewater in color pigment production consists of several key steps:
1. homogenization tank: To begin with, the cleaning wastewater is fed into a tank where it is thoroughly homogenized to ensure a uniform consistency.
2. precipitation reactor with wastewater chemicals: In the next step, the wastewater is treated in the precipitation reactor using precipitants. This step aims to precipitate dissolved wastewater constituents. In addition, the pH value is adjusted to a neutral range by adding neutralizing agents. The neutralizing agent is milk of lime, which is provided by our specially developed milk of lime preparation station.
3. addition of flocculants and sedimentation: In the next process step, flocculants are added. The previously precipitated particulate substances combine to form larger sludge flocs. These are separated from the treated wastewater in the sedimentation reactor(ALMA CHEM MCW).
4. chamber filter press for dewatering: The resulting sludge and the separated impurities are dewatered in a chamber filter press, which significantly reduces disposal costs.
5. gravel filter for final purification: Finally, the treated wastewater is pumped through a gravel filter(ALMA FIL) to remove the last insoluble pollutants from the wastewater.
Similar projects
Walki Ekopak S.A., ALMA CHEM MCW, ALMA FIL
Treatment of 4m3 of wastewater per day from the printing of packaging using the flexographic printing process. Wastewater treatment using a precipitation/flocculation plant and final filtration for Walki Ekopak S.A.
Harold Scholz & Co. GmbH, ALMA CHEM MCW, ALMA FIL
Treatment of 18m3 of cleaning wastewater per day from color pigment production with a precipitation/flocculation system and final filtration for Harold Scholz & Co. GmbH.