METHOD OF SEWAGE TREATMENT FROM HEAVY METAL IONS Russian patent published in 2018 - IPC C02F1/28 C02F1/62 C02F101/20 

FIELD: technological processes.

SUBSTANCE: invention relates to a water purification technology and can be used to treat wastewater from heavy metal ions. Purification method from heavy metal ions involves the treatment of wastewater with ground waste of a non-autoclaved foam medium density D200 with grain sizes of 0.114–0.315 mm, obtained with the use of a foaming agent on a protein basis with a concentration in the aqueous solution of the foaming additive of 3–5 mas. %.

EFFECT: invention provides purification of waste water from ions of several heavy metals simultaneously, an increase in the filtration rate, a reduction in cleaning time, a decrease in the sorbent layer and its economy.

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