Acid Rock Drainage or Not—Oxidative vs. Reductive Biofilms—A Microbial Question
نویسندگان
چکیده
منابع مشابه
Review 1 Acid Rock Drainage or Not — Oxidative vs . Reductive 2 Biofilms — A Microbial Question 3
Measures to counteract AMD generation need to start at the mineral surface, inhibiting 9 mineral-oxidizing, acidophilic microbes. Laboratory and long term field tests with pyrite-containing 10 mining wastes, where Carbonaceous Phosphate Mining Waste (CPMW) was added, resulted in low 11 acidity, and near neutral drainage. The effect was reproducible, and confirmed by several 12 independent resea...
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The dissolution of sulfide minerals such as pyrite (FeS2), arsenopyrite (FeAsS), chalcopyrite (CuFeS2), sphalerite (ZnS), and marcasite (FeS2) yields hot, sulfuric acid-rich solutions that contain high concentrations of toxic metals. In locations where access of oxidants to sulfide mineral surfaces is increased by mining, the resulting acid mine drainage (AMD) may contaminate surrounding ecosys...
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Research was carried out to improve acid rock drainage (ARD) prediction methodologies, focussing on resolving uncertainties in acid base accounting (ABA) methods. Advancements, their application, and interpretation are reported. Consideration of both net acid production potential (NAPP) and net acid generation (NAG) test results provide a more reliable routine screening technique than either te...
متن کاملEvaluation of Rock Characteristics for Acid Water Drainage from Rock Muck
Surface/ground water pollution caused by the inflow of acid water enriched with heavy metals has become a serious environmental problem in the areas around mines [1,2]. This results from the sulfate discharge generated by the decomposition of pyrite contained in the altered rock in mining areas [3]. The same problem has arisen at engineering work excavation sites in recent years [4]. Therefore,...
متن کاملInter-species interconnections in acid mine drainage microbial communities
Metagenomic studies are revolutionizing our understanding of microbes in the biosphere. They have uncovered numerous proteins of unknown function in tens of essentially unstudied lineages that lack cultivated representatives. Notably, few of these microorganisms have been visualized, and even fewer have been described ultra-structurally in their essentially intact, physiologically relevant stat...
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ژورنال
عنوان ژورنال: Minerals
سال: 2018
ISSN: 2075-163X
DOI: 10.3390/min8050199