vestniktgasuВестник Томского государственного архитектурно-строительного университетаVestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture1607-18592310-0044Tomsk State University of Architecture and Building10.31675/1607-1859-2021-23-3-143-154vestniktgasu-1010Research ArticleВОДОСНАБЖЕНИЕ, КАНАЛИЗАЦИЯ, СТРОИТЕЛЬНЫЕ СИСТЕМЫ ОХРАНЫ ВОДНЫХ РЕСУРСОВWATER SUPPLY, SEWERAGE, BUILDING SYSTEMS OF WATER RESOURCE PROTECTIONТехнология очистки производственных сточных вод гальванического цехаElectroplating plant sewage technologyБеловаЛ. В.BelovaL. V.

Белова Лариса Владимировна, канд. техн. наук, доцент

625000, г. Тюмень, ул. Володарского, 38

Larisa V. Belova, PhD, A/Professor

38, Volodarskii Str., 625000, Tyumen, Russia

belovalv@tyuiu.ruВялковаЕ. И.VyalkovaE. I.

Вялкова Елена Игоревна, канд. техн. наук, доцент

625000, г. Тюмень, ул. Володарского, 38

Elena I. Vialkova, PhD, A/Professor

38, Volodarskii Str., 625000, Tyumen, Russia

vyalkova-e@yandex.ruГлущенкоЕ. С.GlushchenkoE. S.

Глущенко Екатерина Сергеевна, ассистент

625000, г. Тюмень, ул. Володарского, 38

Ekaterina S. Glushchenko, Assistant Lecturer

38, Volodarskii Str., 625000, Tyumen, Russia

ekaterina.gluschenko.1997@mail.ruОсиповаЕ. Ю.OsipovaE. Yu.

Осипова Елена Юрьевна, канд. геол.-минерал. наук, доцент

634003, г. Томск, пл. Соляная, 2

Elena Y. Osipova, PhD, A/Professor

2, Solyanaya Sq., 634003, Tomsk, Russia

kyky60@bk.ruТюменский индустриальный университетРоссияIndustrial University of TyumenRussian FederationТомский государственный архитектурно-строительный университетРоссияTomsk State University of Architecture and BuildingRussian Federation202127062021233143154Copyright © Белова Л.В., Вялкова Е.И., Глущенко Е.С., Осипова Е.Ю., 20212021Белова Л.В., Вялкова Е.И., Глущенко Е.С., Осипова Е.Ю.Belova L.V., Vyalkova E.I., Glushchenko E.S., Osipova E.Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.tsuab.ru/jour/article/view/1010

Сточные воды гальванических предприятий характеризуются повышенными концентрациями металлов, взвешенных веществ, кислот, щелочей и других загрязнений. Неравномерность поступления, низкие значения рН и специфический состав усложняют обработку таких стоков.

К основным методам очистки относят химическое осаждение, ионный обмен, химическое и электрохимическое окисление, флотацию, фильтрацию и мембранные установки. В статье рассмотрен возможный вариант очистки сточных вод небольшого гальванического цеха, на основании проведенного исследования предложена технологическая схема, включающая осаждение загрязняющих веществ гидроксидом натрия и окисление анолитом на втором этапе.

Эффекты снижения загрязнений составили по ХПК 88,9 %, взвешенных веществ – 99,5 %, железа – 99,8 %, АПАВ – 95,7 %, ионов меди – 99,9 %. Показатель рН очищен- ной воды составлял 7,8 и соответствовал значению слабощелочной среды.

Electroplating plant sewage is characterized by high concentration of metals, suspended solids, acids, alkalis and other contaminants. The irregular inflows, low pH values and specific sewage composition complicate its treatment. The main treatment methods include chemical precipitation, ion exchange, chemical and electrochemical oxidation, flotation, filtration and membrane separation. The paper proposes a possible variant of wastewater treatment in a small electroplating plant. The proposed flow diagram includes sedimentation of polluting substances with sodium hydroxide and oxidation with anolyte. The method results in a 88.9 % reduction in chemical oxygen demand, 99.5 % reduction in suspended solids, 99.8 % reduction in iron, 95.7 % reduction in surfactants, and 99.9 % reduction in copper ions. The pH value of the treated water is 7.8 and matches the value of a slightly alkaline environment.

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The authors declare that there are no conflicts of interest present.