REMOVAL OF SOLUBLE IRON IN THE POTOMAC RIVER ESTUARY

被引：25

作者：

EATON, A

机构：

[1] Chesapeake Bay Institute, Johns Hopkins University, Baltimore

来源：

ESTUARINE AND COASTAL MARINE SCIENCE | 1979年 / 9卷 / 01期

关键词：

bacteria; Chesapeake Bay; coagulation; estuaries; geochemical cycle; iron;

D O I：

10.1016/0302-3524(79)90005-7

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

' Soluble' iron levels in the Potomac River estuary are extremely low, usually less than 0·5 μm at mile 90 (freshwater) and decrease downstream to less than 0·05 μm prior to the intrusion of salt water. Removal of 'soluble' and fine filterable iron in the freshwater obeys first order kinetics with a rate constant of about o.1 day-1. Addition of bacteriocides to samples stabilizes iron concentrations, suggesting that in this estuary freshwater colloids are destabilized by bacterial polymers. The extensive removal of iron in freshwaters is a different phenomenon from the salinity-dependent removal observed by several other workers in different estuaries. © 1979.

引用

页码：41 / 49

页数：9

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