Optimization of the treatment of zinc waste with a decanter
A company needing to process zinc was experiencing difficulties in complying with the environmental standards in force. To meet this challenge, a treatment solution based on coagulation-flocculation has been implemented. This approach optimized the precipitation of the zinc while ensuring efficient sedimentation.
Two lamellar decanters were then installed to complete the treatment, providing optimal performance and seamless integration on site. With this solution, the treated water is now clear and complies with regulatory requirements.
How to optimize the treatment of zinc in industrial effluents?
To meet environmental compliance needs, an industrial company needed to treat its zinc-rich effluent efficiently. The aim was to ensure the optimal precipitation and removal of zinc while meeting discharge standards. The solution also had to adapt to the specific constraints of the site, particularly in terms of space, transport and integration.
This processing requires the following:
- A coagulation-flocculation step, allowing the zinc particles to be effectively precipitated.
- The realization of a test jar, to adjust the dosages of coagulants and flocculants according to the characteristics of the effluent.
- The installation of two lamellar decanters, designed to maximize sedimentation while reducing their footprint.
- Optimized design for easy on-site transport and installation , with modular, plug-and-play equipment.
- Dimensioning that takes into account the specific constraints of flow and contact time required for efficient processing.
- Management of the sludge generated, ensuring its rapid evacuation and in accordance with regulations.
Increased efficiency thanks to coagulation-flocculation and lamellar decanters
The combination of coagulation-flocculation and lamellar decanters made it possible to obtain a rapid and efficient sedimentation of the zinc particles. Thanks to the optimization of the dosages during the jar tests, the treatment performance has been significantly improved, ensuring perfectly clear and environmentally compliant outlet water. This process has demonstrated exceptional reliability, even with variations in effluent characteristics.
Lamellar decanters adapted to industrial constraints
The choice to install two compact lamellar decanters made it possible to meet the specific requirements of the site. Their modular design and reduced height made it easy to transport and install, while maximizing the space available on site. These decanters have proven to be particularly suitable for industrial environments where logistical constraints and surface limitations are critical.
Reduce costs and improve operational performance
The solution implemented has led to a significant reduction in the costs associated with effluent treatment. By optimizing the sedimentation steps and minimizing the need for chemical reagents, the process has proven to be cost-effective in both the short and long term. In addition, the reduction in the size of the infrastructure has also helped to decrease transport and installation costs, while increasing overall performance.
Optimization through preliminary testing and system flexibility
Jar tests played a key role in adjusting the processing parameters, allowing the solution to be customized to the specific needs of the site. This process also ensured compatibility with possible future expansions, thanks to the modularity of the equipment. The tailor-made approach ensured maximum performance optimization, even under changing conditions.
Concrete results: waste reduction and resource recovery
By effectively treating the zinc particles, the solution not only reduced the waste discharged, but also maximized the use of available resources. The sludge generated is easily recovered and can be managed according to the regulations in force, contributing to better management of resources and a more environmentally friendly approach. This illustrates the relevance of a sustainable and innovative approach to industrial effluents.
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High lamella clarifier DLH-XXXL
Lamella clarifiers -
High lamella clarifier DLH-XXL
Lamella clarifiers
To carry out the optimization of zinc processing, 1h2o3 has achieved:
- The installation of two lamellar decanters after the coagulation-flocculation stage to optimize the sedimentation of zinc particles.
- A tailor-made solution, adapted to the specific characteristics of the effluents and the constraints of the site.
- Integration of high-performance equipment to improve aeration and treatment of metal particles.
- Commissioning of the system quickly and efficiently to ensure optimal operation from the moment it is installed.
- An integrated approach that respects the treatment objectives and environmental standards in force.
Year of completion
2024
