astАрхитектура, строительство, транспортArchitecture, Construction, Transport2782-232X2713-0770Industrial University of Tyumen10.31660/2782-232X-2026-2-100-112UCCWQWast-267Research ArticleСТРОИТЕЛЬСТВОCONSTRUCTIONОсаждение ионов аммония из смеси бытовых и минеральных сточных водPrecipitation of ammonium ions from a mixture of domestic and mineral wastewaterhttps://orcid.org/0000-0001-7097-1775ФугаеваА. М.FugaevaA. M.

Фугаева Анастасия Михайловна, ассистент кафедры инженерных систем и сооружений 

 

Anastasiia M. Fugaeva, Assistant in the Department of Engineering Systems and Structures 

 

nastyafugaeva@mail.ruТюменский индустриальный университет, ТюменьРоссияIndustrial University of Tyumen, TyumenRussian Federation20260107202662100113Copyright © Фугаева А.М., 20262026Фугаева А.М.Fugaeva A.M.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ast.tyuiu.ru/jour/article/view/267

Для термальных курортов характерна проблема утилизации не только бытовых сточных вод, но и значительных объемов использованной минеральной воды. Наиболее сложной задачей является удаление из воды ионов аммония NH4, которые впоследствии приводят к эвтрофикации водоемов. Исследование по совместной обработке бытовых и минеральных сточных вод было проведено методом химического осаждения, в результате чего было получено комплексное сельскохозяйственное удобрение – струвит. Определены оптимальные условия и дозы реагентов (гидрофосфата натрия, хлорида магния и гидроксида натрия) для снижения в воде концентрации иона аммония до установленных норм и получения струвита в объеме 5.35 г/дм3. При разбавлении аммонийсодержащих бытовых стоков минеральной водой удалось сократить расход хлорида магния на 80 %. Технико-экономический анализ показал, что в этом случае экономия средств может составлять 3–4 тыс. рублей на 1 м3 обрабатываемой воды, и полученная прибыль за счет продажи полученного удобрения может частично компенсировать затраты на утилизацию сточных вод.

Thermal resorts face the challenge of disposing of not only domestic wastewater but also significant volumes of used mineral water. The most critical aspect is the removal of ammonium ions (NH4) from the water, as they subsequently lead to eutrophication of water bodies. A study on the combined treatment of domestic and mineral wastewater was conducted using chemical precipitation, resulting in the production of a complex agricultural fertilizer – struvite. Optimal conditions and reagent doses (sodium hydrophosphate, magnesium chloride, and sodium hydroxide) were determined to reduce ammonium ion concentration in the water to established regulatory standards and achieve a struvite yield of 5.35 g/dm3. Diluting ammonium-containing domestic wastewater with mineral water reduced magnesium chloride consumption by 80%. A technical and economic analysis indicated that cost savings could amount to 3.000–4.000 rubles per m3 of treated water, and the profit generated from selling the fertilizer could partially offset wastewater disposal coasts.

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