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Article: A SIMPLE FIELD TEST FOR ACID VOLATILE SULFIDE IN SEDIMENTS.(Statistical Data Included)
- Article from:
- Journal of the Tennessee Academy of Science
- Article date:
- July 1, 2000
- Author:
CopyrightCOPYRIGHT 2000 Tennessee Academy of Science. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT--The presence of acid volatile sulfide (AVS) is of importance in reducing or eliminating toxicities of heavy metals in sediments in lakes and reservoirs. Acid volatile sulfide consists of the more soluble sulfides, principally FeS, when present as a solid phase in the sediment. The determination of AVS in sediments is of considerable practical interest because AVS can immobilize toxic heavy metals as highly insoluble sulfides. Present methods of analysis for AVS, although accurate, are costly and slow. A new, rapid, low-cost field test for AVS is described in which sediment samples are acidified in a closed jar, agitated, and the released hydrogen sulfide detected ...