The General Concept of Kizel Coal Basin Remediation

Maksimovich, N.; Khmurchik, V.; Demenev, A.; Sedinin, A.; Berezina, O.

Авторы: Maksimovich N., Khmurchik V., Demenev A., Sedinin A., Berezina O.
Сборник: Mine Water: Technological and Environmental Challenges: proceedings of International Mine Water Association Conference 2019
Год издания: 2019
Первая страница: 736
Последняя страница: 740
Аннотация: Acid rock drainage (ARD) is worldwide environmental problem. Development of ARD is especially characteristic of coal fields. We studied the effect of ARD on the environment in Kizel coal basin, Russia. Kizel coal basin (KCB) is located on the east part of Perm region, Russia, within the West Urals folding zone adjacent to the pre-Ural boundary deflection. Exploitation of basin started in 1796. Folded geological structure of the basin and intensive karst processes within carbonate rocks determine a big amount of water inflow in mines. There is an elevated content of sulphur in basin’s coal also. These factors determine the generation of large volume of acid mine water and drainage from waste piles. Cessation of mines in 1990s led to the raising of watertable level, mine flooding and starting of acid mine water (pH 2-3) discharge on surface. Over 35 million cubic meters of waste rocks were accumulated in more than 100 waste piles after the cessation, which provide generation of enormous amount of acid rock drainage water. As a result these processes have led to the deforestation of large area, river water contamination with metals and metalloids, and accumulation of yellowboy precipitate covering river beds. Thus, over than 500 kilometres of river streams was degraded. The yellowboy precipitate contains high content of such components as Fe, Al, Mn, Cu and other chemical elements. So, this precipitate is considered as the secondary source of pollution. Investigations of the environmental problems of the basin began in 1980s. Some treatment methods were proposed: the passive treatment based on geochemical barriers installed at the floor of waste pile, and the active mine water treatment constructions. At present we study the possibility of using various methods of the environment remediation in KCB. It is planned to use both active and passive treatments: injection of alkaline reagents into mine voids, sealing and recultivation of waste piles and some other techniques to neutralize acid discharges. We also plan to use GIS-modeling to choose the proper displacement of treatment systems.
Добавил в систему: Максимович Николай Георгиевич

	ИСТИНА	Войти в систему Регистрация
	Интеллектуальная Система Тематического Исследования НАукометрических данных
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

Интеллектуальная Система Тематического Исследования НАукометрических данных

The General Concept of Kizel Coal Basin Remediationстатья Исследовательская статья

Прикрепленные файлы