Wastewater from the regeneration of cation-exchange filters for water treatment | Zendy

N A Bykovsky | Zendy; Е. А. Кантор | Zendy; P A Rahman | Zendy; L N Puchkova | Zendy; N N Fanakova | Zendy

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Wastewater from the regeneration of cation-exchange filters for water treatment

Author(s) -

N A Bykovsky,

Е. А. Кантор,

P A Rahman,

L N Puchkova,

N N Fanakova

Publication year - 2020

Publication title -

iop conference series materials science and engineering

Language(s) - English

Resource type - Journals

eISSN - 1757-899X

pISSN - 1757-8981

DOI - 10.1088/1757-899x/775/1/012084

Subject(s) - wastewater , ion exchange , chemistry , alkali metal , sodium , sewage treatment , magnesium , pulp and paper industry , inorganic chemistry , waste management , environmental science , ion , environmental engineering , organic chemistry , engineering

This scientific paper refers to the study of wastewater from the demineralized water production. The wastewater composition generated during the regeneration and washing of cation-exchange filters of the first and second stages in the water treatment shop of the Sterlitamak heat station was studied. Analysis of metal content in the wastewater of cation exchange filters was carried out by atomic absorption method on a «Saturn 3P1» apparatus. It is shown that these drains are of acidic type. More than 20 cations of various metals were found in the wastewater. The highest content is observed for sodium, calcium and magnesium ions in the drain. It is noted that the wastewater generated by the regeneration of cation-exchange filters without preliminary preparation is not suitable for electrochemical processing to produce acid and alkali.

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