To a suspension of fine particles and aggregation, collection and purification of waste water algae phytoplankton and zooplankton smile

摘要

A method comprises (i) the clogging step; that passes the 1st soln. contg. microscopic particles (MP) through a fixed granule layer (FGL) for partial or whole clogging; (ii) the unclogging step; that passes the 2nd soln. through a FGL for partial unclogging; and (iii) the flowing step; that flows the 2nd soln. to the same direction as in the 1st soln. by velosity 0.1-5 m/h (enough to exhaust liq. not contg. MP and to recover aggregates from treated soln.). Passing suspended water (concn. 150-200 ppm) through a FGL (sands, particle size 300 micron) without any aggregators: 50% of SM remains in the FGL when passing time is 1hr, 70% when 3hrs. SM are clogged on FGL which can be sepd. intermittently or continuously.