Оценка:
Опубликованно: 01.12.1996.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'Bioremdiation of Toxic Wastes', 1.
  • Эссе 'Bioremdiation of Toxic Wastes', 2.
Фрагмент работы

Bioremediation, or biodegradation, is a method that uses microscopic organisms to reduce, eliminate, or contain hazardous wastes into less harmful substances [NABIR 9]. It has only been a popular and an important waste treatment method since the late 1980's [Hunt]. Hazardous substances such as polycyclic aromatic hydrocarbons (PAHS), petroleum, and polychlorinated biphenyls (PCBs) can pollute the environment after not being properly disposed of, mishandled, or accidentally spilled. Among the most prevalent metallic substances in Department of Energy toxic waste are chromium, lead, mercu…

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