FIELD: chemistry.
SUBSTANCE: electric processing of sewage waters from ions of heavy metals is carried out by direct current with current density 6-9 A/m2 and voltage 12 V for 10-15 min; formed sludge, containing ions of heavy metals is lifted to water surface by means of hydrogen bubbles, released on aluminium cathodes, and is removed from water surface.
EFFECT: reduction of costs for aluminium and electric energy consumption, increased efficiency and rate of sewage water purification from ions of heavy metals.
5 tbl, 4 ex
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RU2074123C1 |
