NDLI: Manipulation of the Sediment-Water Interface of Extremely Acidic Mining Lakes with Potatoes: Laboratory Studies with Intact Sediment Cores

Content Provider	Springer Nature Link
Author	Fyson, A. Nixdorf, B. Steinberg, C.E.W.
Copyright Year	1998
Abstract	The water of flooded, abandoned, open-cast pits (Tagebauseen) in the Lusatia region of eastern Germany is characterised by a high acidity (Fe3+/H+), low pH (2.5-3.5) and low concentrations of dissolved phosphorus (SRP) and carbon (DIC). Investigations are investigating the use of amendments to assist in removal of acidity from Tagebauseen through controlled eutrophication. A simple system has been developed to investigate the effects of amendments on water chemistry around the sediment-water interface. Intact, little-disturbed sediment cores (diameter 5.5 cm) with overlying water (total volume 1.5 1) from one Tagebausee (Koschen: pH 3.1, Fe 15-20 mg/l) have been incubated at low temperature (6-10 °C) to investigate the effects of organic amendments (potato) on the concentrations of some major ions in the system. In particular, the dynamics of Fe, P, N and C over time in the presence or absence of organic amendment (potato) have been investigated. Addition of potatoes results in the rising of a sharp pH gradient from near the sediment surface, and an overall increase in dissolved Fe, P and C in the system. The Fe eventually precipitated as black particulates but the SRP remained in solution. Intact sediment cores provide a useful tool for studying changes in water column and sediment pore water chemistry and the potential effects of amendments on the sediments of Tagebauseen.
Starting Page	353
Ending Page	363
Page Count	11
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	108
Issue Number	3-4
e-ISSN	15732932
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1998-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hydrogeology Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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