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Title:Usefulness of sediment oxygen demand as a tool for ompoundment management
Author(s):Barcelona, Michael J.; Wang, Woodrow
Contributor(s):Illinois State Water Survey
Subject(s):Water resource development--Illinois
Water resource development
Water quality
Oxygen demand
Chemical oxygen demand
Oxygen requirements
Sediment-water interfaces
Mud
Lake sediments
Oxygen sag
Aeration
Anaerobic conditions
Water pollution effects
Sulfides
Hydrogen sulfide
Mineralogy
Geographic Coverage:Illinois (state)
Abstract:Sediment erosion and transport have a significant effect on water quality in agricultural watersheds. In the Midwest there are many man-made impoundments which experience severe sediment-related problems. Sediment Oxygen Demand (SOD) measurements have great practical utility for the management of sediment-impacted lakes for which sediment dredging or aeration/destratification schemes represent viable rehabilitation schemes. The report summarizes a fifteen-month study of the phenomenon of SOD in two shallow Illinois impoundments. Both lakes have served as public water supplies and experienced significant water quality problems associated with sediment accumulation or seasonal anoxia. The aims of the investigation were to identify the principal components of the SOD and to develop an optimized SOD procedure. Briefly, batch respirometric measurements of SOD were found to be most diagnostic of oxygen depletion due to sediment resuspension or disturbance. As such, the bulk of the demand could be identified as chemical; and associated with sediment solids rather than due to reduced soluble species in sediment pore waters. Sulfide minerals contributed to the SOD in nearly all cases. An improved method for the determination of acid-soluble sulfide was developed to permit correlation of sulfide levels with sulfidic SOD.
Issue Date:1982-08
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Type:Text
Language:English
URI:http://hdl.handle.net/2142/90364
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1982 held by Michael J. Barcelona, Woodrow Wang
Date Available in IDEALS:2016-06-29


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