Ferrite Formation Using Precipitates Neutralized by Magnesium Oxide in the Treatment of Acid Mine Drainage
نویسندگان
چکیده
منابع مشابه
Advances in seeded ambient temperature ferrite formation for treatment of acid mine drainage.
Advances in the seeded ambient temperature ferrite process for treatment of acid mine drainage (AMD) are described. Magnetite formation requires that the oxidation rate of ferrous to ferric does not exceed the rate at which ferrous iron is incorporated into the crystal structure (dehydroxylation-crystallization). If the oxidation rate is too high, then ferric-only oxides form, an effect exacerb...
متن کاملCharacterization of manganese oxide precipitates from Appalachian coal mine drainage treatment systems
The removal of Mn(II) from coal mine drainage (CMD) by chemical addition/active treatment can significantly increase treatment costs. Passive treatment for Mn removal involves promotion of biological oxidative precipitation of manganese oxides (MnOx). Manganese(II) removal was studied in three passive treatment systems in western Pennsylvania that differed based on their influent Mn(II) concent...
متن کاملPassive Treatment of Acid-Mine Drainage
Introduction Acidic mine drainage (AMD; also called “acid rock drainage” or “acid drainage”) is an environmental pollutant that impairs water resources in mining regions throughout the world. Where such treatment is required legally, treatment must be efficient and continual. Treatment methods are commonly divided into either “active,” meaning reliance on the addition of alkaline chemicals to n...
متن کاملsuppression of coke formation in thermal cracking by coke inhibitors
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
15 صفحه اولPassive Treatment Systems for Acid Mine Drainage
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ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 2004
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.120.577