INTERACTION OF ACID-MINE DRAINAGE WITH WATERS AND SEDIMENTS OF WEST SQUAW CREEK IN THE WEST SHASTA MINING DISTRICT, CALIFORNIA

被引:114
作者
FILIPEK, LH
NORDSTROM, DK
FICKLIN, WH
机构
[1] US GEOL SURVEY,MENLO PK,CA 94025
[2] US GEOL SURVEY,DENVER FED CTR,DENVER,CO 80225
关键词
ACIDS - Environmental Testing - CHEMICAL REACTIONS - Analysis - RIVERS - Sedimentation - WATER POLLUTION - Analysis;
D O I
10.1021/es00158a009
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
During mixing of the acid sulfate stream waters in the South Fork of West Squaw Creek with an almost equal volume of dilute uncontaminated water, Cu, Zn, Mn, and Al remained in solution rather than precipitating or adsorbing on solid phases. Changes in the concentration of these generally conservative metals could be used to determine relative flow volumes of acid tributaries and the main stream. An amorphous orange precipitate (probably ferric hydroxides or a mixture of ferric hydroxides and jarosite) was ubiquitous in the acid stream beds and was intimately associated with algae at the most acid sites. Relative sorption of cations decreased with decreasing water pH. However, arsenic was almost completely scavenged from solution within a short distance from the sulfide sources.
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页码:388 / 396
页数:9
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