FIELD: chemistry.
SUBSTANCE: sorbent for cleaning wastewater from copper is proposed. The sorbent is spent during filtration of kieselguhr beer subjected to drying at 50-200°C and subsequent thermochemical activation at 60-100°C. Activation is carried out in a 2.0-2.5 M solution of sodium hydroxide, taken from the calculation of 100 ml of solution on 10-30 grams of kieselguhr.
EFFECT: invention makes it possible to increase the adsorption activity of the sorbent in copper ions.
2 tbl
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