Iron oxidation kinetics in an acidic alpine lake

R. C. Barry
Jerald L. Schnoor, University of Iowa
B. Sulzberger
L. Sigg


Four experiments were performed to assess the role of homogenous, heterogenous, biological and photochemical processes in the oxygenation of ferrous iron in aquatic ecosystems. Experiments were carried out at Lake Cristallina, Ticino, Switzerland, and in the laboratory. Rate constants are presented for homogenous oxygenation in lakewater, for oxygenation by lake sediment under sterile and non-sterile conditions and for heterogenous oxygenation.