Which type of filtration is commonly used in secondary treatment?

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Membrane filtration is a widely used method in secondary treatment for wastewater management due to its ability to effectively remove suspended solids, pathogens, and various contaminants at a microscopic level. This process utilizes semi-permeable membranes that allow only certain particles to pass through, providing a high degree of separation efficiency. The membranes can vary in pore size, enabling the targeting of specific contaminants, which enhances the overall quality of the treated water.

In secondary treatment, the focus is on reducing organic material and nutrients in the wastewater, and membrane filtration is particularly effective for these tasks. It can also significantly reduce the amount of residual sludge compared to other filtration methods, making it a more sustainable option in the long run. Overall, the ability of membrane filtration to achieve higher levels of clarity and purity in treated water makes it a key technology in modern wastewater treatment processes.

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