METHOD FOR WASHING OF PRESSURE FILTER WITH COARSE-GRAINED ANTHRACITE-QUARTZ BED Russian patent published in 2010 - IPC B01D24/46 

FIELD: technological processes.

SUBSTANCE: invention relates to technology of pressure filter filtering bed regeneration and may be used in systems of industrial and drinking water supply. Method includes at the first stage bubbling of bed by supply of compressed air into bed with specific flow rate from 0.6 to 1.2 m³/(min·m²) under normal conditions for 6÷10 min, and at the second stage bed is washed by means of water supply into bed with specific flow rate from 0.6 to 1.2 m³/(min·m²) for 6÷10 min. At the second stage washing is carried out periodically with bed expansion by 10÷15% by means of water supply into bed with specific flow rate from 1.8 to 2.1 m³/(min·m²) for 3÷4 min.

EFFECT: improved performance and efficiency of pressure filter washing.

3 cl