New filtration technology removes pollutants from water, improving environmental quality.
A pilot microfiltration plant was tested to clean water from suspended solids after biological treatment. Using disk filters with fabric filter cloth, the plant removed suspended solids to 4 mg/l with 10 µm cloth and 2 mg/l with 5 µm cloth. The filtration rate was 8.5 m/h, with wash water consumption of 0.7–1.4% for 10 µm cloth and 5.8–6.8% for 5 µm cloth. Besides solids, COD, BOD5, total nitrogen, and total phosphorus were also removed. Volumetric microfiltration plants are effective for high-quality treatment of water after biological cleaning.
