Task
The ADLER-Werk Lackfabrik Johann Berghofer GmbH & Co KG is one of Europe’s leading manufacturers of paints, varnishes, and wood preservatives. For decades, this family-owned company has stood for the highest quality, sustainability, and innovation. ALMAWATECH was commissioned to implement a challenging wastewater treatment project for the production facility in Schwaz, Austria.
The goal was to treat wastewater from paint production. This wastewater is contaminated with heavy metals, hydrocarbons, and AOX and requires high-performance, reliable treatment using our ALMA CHEM MCW CP system.
Photo: Shown are the dosing stations for ALMA AQUA process additives, the chamber filter press, and the batch reactors (right)
Design data
- Compliance with local discharge requirements
Solution & implementation
Our CP plant is based on the process of precipitation, neutralization, and flocculation, supplemented by a special sulfide treatment to ensure the removal of heavy metals.
The wastewater treatment system was implemented as a batch plant based on the chemical-physical wastewater treatment process. The core processes are precipitation and flocculation, followed by sedimentation in the reactors and post-treatment using ALMA FIL double-layer filters (Ø 1.2 m) with an integrated CEB backwash station.
Photo: Easy-to-operate and easily accessible batch reactors equipped with variable-frequency drive-controlled agitators, manholes, radar level measurement, and flush valves.
The sludge line uses a sludge thickener, followed by a chamber filter press (1,000 × 1,000 mm). This features a patented system that prevents dewatered sludge from adhering to the filter cloths, as well as a fully automatic discharge system for the filter cake. This ensures reliable and efficient sludge treatment.
Photo: Automatic chamber filter press for dewatering sludge generated during wastewater treatment
Process additives used
The ALMA AQUA wastewater product series is used, which has been specifically developed for the respective applications and industries. These products can also be custom-formulated as needed to ensure maximum efficiency and operational reliability of the system.
ALMA Additive OS – a specialized sulfide precipitant for heavy metals
ALMA FHM A10 – polymeric flocculant for particle agglomeration
ALMA LIME – Lime-based neutralizer
ALMA FLOC FE40 – Iron-based primary flocculant
Photo: Even in confined spaces, our engineers ensure that the system components are arranged in a way that is easy to maintain and access. On the right side of the photo is the piston diaphragm pump used to feed the chamber filter press.
Temporary solution with a rental system
To ensure a smooth transition during the renovation of the existing wastewater treatment system, a rental system (CP system) was initially installed as a temporary solution. Following a successful trial run, the old system was dismantled, and the new CP system was then installed.
Similar projects
Similar projects
ADLER Paints, Austria, ALMA CHEM MCW
Construction of a wastewater treatment plant for ADLER-Werk Lackfabrik Johann Berghofer GmbH & Co KG in Schwaz (Austria) to treat 60 m³/day of wastewater from paint production. The project utilizes ALMA AQUA wastewater treatment products, which are custom-designed to ensure maximum efficiency and operational reliability.
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