By James A. Jacobs
Provides the instruments had to learn and remedy acid drainage problems
Featuring contributions from top specialists in technology and engineering, this booklet explores the advanced biogeochemistry of acid mine drainage, rock drainage, and acid sulfate soils. It describes the right way to are expecting, hinder, and remediate the environmental influence of acid drainage and the oxidation of sulfides, providing the most recent sampling and analytical equipment. additionally, readers will become aware of new ways for recuperating important assets from acid mine drainage, together with bioleaching.
Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils experiences the most up-tp-date findings within the box, providing new insights into the underlying factors in addition to new instruments to reduce the damage of acid drainage:
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Extra resources for Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils. Causes, Assessment, Prediction, Prevention, and Remediation
3 Petrographic thin section of asphaltic end product, showing aggregate and asphaltic binder. 4 Permeability effects with exposure of an asphaltic liner. 5 Analytical results for Pb–Zn prior to and after AMS. 6 Important polar and nonpolar functional groups are present in asphalt. 7 Schematic showing the asphalt–aggregate interface at the molecular level using space-filling and structural representations to illustrate important functional relationships. 8 Ternary diagram showing chemical compositional fields for portland cement (types I and II cements), high alumna cement, clinker, fly ash, lime, natural pozzolons, and slag.
1 Estimated survival of various organisms related to pH. S. 1 Influence of pH on the mobility of metal ions and some anions. 2 Relationships between pH and Eh: (a) environmental changes; (b) resulting metal mobility and form. 3 Distribution of metals in solid phases in soils. 4 Relationship between organism growth or health and dietary concentration for an essential element (a) and a nonessential element (b). 5 Copper speciation with (a) varied acidity (pH) and copper concentration, and (b) varied pH and oxidation–reduction (Eh).
Although associated as a waste product with acid drainage, sulfuric acid is still greatly valued and produced synthetically in chemical plants. Sulfuric acid is currently one of the world's largest-volume industrial chemicals and is used in numerous manufacturing processes. Today, bioleaching or biomining methods use changes in redox conditions to mobilize metal cations from insoluble ores by biological oxidation and complexation processes. An important bacterium of acid mine drainage which is also used in the bioleaching mining process is Acidithiobacillus ferrooxidans, which oxidizes ferrous iron (Fe2+) and generates ferric iron (Fe3+), an oxidant.
Acid Mine Drainage, Rock Drainage, and Acid Sulfate Soils. Causes, Assessment, Prediction, Prevention, and Remediation by James A. Jacobs