Physical filtration is a process that uses physical barriers to remove impurities and particles from water. This method is essential in greywater systems for treating wastewater before it is reused or discharged, ensuring that larger solids and contaminants are separated from the water, leading to cleaner effluent. By employing various materials and methods such as screens, gravel, or sand, physical filtration helps to protect downstream systems and promotes effective water purification.
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