Санкт-Петербургский горный университет императрицы Екатерины II, Санкт-Петербург, Россия

Н. В. Джевага, доцент кафедры геоэкологии, канд. хим. наук, эл. почта: dzhevaga331@mail.ru
О. Л. Лобачева, доцент кафедры общей и физической химии, канд. хим. наук

Рассмотрена проблема техногенной нагрузки на окружающую среду, связанная с образованием и утилизацией мартеновских шлаков на металлургическом предприятии Санкт-Петербурга. Выполнена оценка загрязнения окружающей среды шлаками и подтверждена актуальность обеспечения переработки отходов на рассматриваемом предприятии. На примере образцов мартеновских шлаков определен их химический состав и проведен расчет класса опасности отхода. Предложено гранулирование мартеновских шлаков в качестве альтернативного направления переработки шлаков рассматриваемого предприятия и, как следствие, снижения нагрузки на окружающую среду. Отмечена необходимость корректного подбора параметров гранулированного шлака для его дальнейшей реализации. Предложена гранулирующая установка, габариты которой позволяют ее установить непосредственно вблизи печей. Выполнена оценка экономического эффекта предлагаемого альтернативного направления переработки отходов рассматриваемого металлургического производства. Результаты исследования показали, что гранулирование мартеновских шлаков является эффективным экологически безопасным способом утилизации промышленных отходов и может привести к экономической выгоде для предприятия. Гранулированные мартеновские шлаки могут быть использованы в качестве строительных материалов, дорожных покрытий, для производства цемента.

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