Upgrade of process for tertiary treatment in purification plants
The treatment plant must comply with strict standards for the discharge of suspended pollution. This is particularly true during rainy periods. The plant has simple infrastructure such as a screen and a primary clarifier. It also treats the effluent. Flows increase sharply during bad weather. This causes additional difficulties for the plant. The old pipe networks mix wastewater and rainwater. Lastly, it aggravates the situation.
How is TSS treated in a wastewater treatment plant?
The company uses a lamellar decanter and a drum filter to comply with standards. What’s more, this solution is well suited to small communities, as it effectively manages variations in flow. The lamellar clarifier eliminates heavy particles from the wastewater. The drum filter completes the filtration process, even during heavy rainfall. These two technologies ensure optimum treatment while complying with environmental standards.
How can we manage peak flows without oversizing infrastructures?
The lamella clarifier: an effective solution for organic loads
The plant uses a lamella settling tank to manage organic loads. Compact and reliable, it relies on gravity to settle suspended particles. This autonomous process is ideal for this small-scale plant. It requires neither a large space nor expensive infrastructure. It guarantees compliance with discharge standards under normal conditions. When it rains, the combination with a drum filter maintains optimum performance. In this way, the plant remains efficient without being oversized.
The drum filter: the answer to peak flows
However, during heavy rainfall, the flow of effluent increases rapidly. This means more water needs to be treated. In this situation, the drum filter becomes indispensable. The lamella settling tank, which works well under normal conditions, can no longer retain all the particles. That’s why the drum filter steps in to take over. It effectively captures the remaining particles, preventing them from being discharged. What’s more, the drum filter manages peak flows without compromising overall performance. As a result, the plant maintains treatment quality even under difficult conditions. As a result, the combination of the two technologies ensures that discharge standards are met in all circumstances.
Significant reduction in suspended solids with the combined settling/filter unit
The wastewater treatment plant uses a lamella settling tank and a drum filter to effectively treat TSS. This combination ensures compliance with environmental standards while optimising costs. Even in heavy rain, the system maintains its performance. Analyses have shown concentrations of 5 to 10 mg/L for a flow rate of 11 m³/h. This demonstrates the efficiency of the caisson drum filter. The plant guarantees compliant discharges and reliable treatment in all conditions.
To carry out this project, 1h2o3 produced :
For this project, our team managed :
- The precise design, adapted to the station’s needs.
- The concept of the box filter package
- Manufacture and integration of electromechanical equipment
- Delivery and installation on site
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Aquaculture channel drum filter
Filtering
Year of production
2022
