Remediation of white phosphorus contamination in an Alaskan wetland

2006 ◽  
Vol 5 (Supplement 1) ◽  
pp. S87-S93 ◽  
Author(s):  
Michael R Walsh ◽  
Jon E Zufelt ◽  
Charles M Collins
Keyword(s):  
White Phosphorus ◽  
Phosphorus Contamination

Method for Attenuation of White Phosphorus Contamination in Wetlands

2000 ◽  
Vol 126 (11) ◽  
pp. 1013-1018 ◽  
Author(s):  
Michael R. Walsh, P.E. ◽  
Marianne E. Walsh ◽  
Charles M. Collins
Keyword(s):  
White Phosphorus ◽  
Phosphorus Contamination

Remediation methods for white phosphorus contamination in a coastal salt marsh

1999 ◽  
Vol 26 (2) ◽  
pp. 112-124 ◽  
Author(s):  
MICHAEL R. WALSH ◽  
MARIANNE E. WALSH ◽  
CHARLES M. COLLINS
Keyword(s):  
Effective Means ◽  
White Phosphorus ◽  
Military Bases ◽  
Coastal Salt Marsh ◽  
Phosphorus Contamination ◽  
Feeding Habitat ◽  
Impact Area ◽  
Attenuation Mechanism ◽  
The Military

With the closure of many military bases worldwide and a closer scrutiny of practices on remaining bases, the environmental impact of the military is now an important consideration in the operation of bases. Many previously-unknown environmental problems related to chemicals are surfacing. White phosphorus, a chemical commonly used as an obscurant, is a chemical previously thought to be innocuous after use. In 1990, however, it was linked to the deaths of thousands of waterfowl at the Eagle River Flats impact area on Ft Richardson near Anchorage, Alaska, USA, and shortly after, a series of remedial investigations was initiated. This paper describes three of the remedial methods currently under investigation, namely enhanced in-situ remediation, pond draining through ditching or pumping, and dredging. These three approaches are best applied in different environments, but they can be used together or in conjunction with other strategies. Their impacts on the environment will vary as well.Experience with these remediation strategies has proven very useful in determining the direction that the clean-up effort at Eagle River Flats (ERF) should take. Dredging, an effective means of removing contaminated sediments for off-site remediation, has been shown to be too slow and expensive at the ERF because unexploded ordnance is present. Enhanced natural remediation is effective under favourable climatological conditions in areas that experience intermittent flooding, but desaturation of the sediments is critical to its effectiveness. Pond draining by blasting a ditch effectively removes waterfowl feeding habitat, but attenuation of the contaminant is inhibited because the ditch increases flooding frequency, and the habitat alteration is permanent. Pond pumping, where feasible, has shown great potential for the desaturating of wide areas of ERF, enabling the natural attenuation mechanism to progress. Further investigation will be necessary to confirm these initial conclusions and determine the overall effectiveness of all three methodologies. Methods developed over the course of this work may be applied to other remediation projects where in-situ volatilization can occur and limited disturbance of wetlands is critical.

Remediating and Monitoring White Phosphorus Contamination at Eagle River Flats (Operable Unit C), Fort Richardson, Alaska

2001 ◽  
Author(s):  
M. E. Walsh ◽  
C. H. Racine ◽  
C. M. Collins ◽  
M. R. Walsh ◽  
R. N. Bailey
Keyword(s):  
White Phosphorus ◽  
Phosphorus Contamination

Remedial Investigation Report: White Phosphorus Contamination of Salt Marsh Sediments at Eagle River Flats, Alaska

1992 ◽  
Author(s):  
Charles H. Racine ◽  
Marianne E. Walsh ◽  
Charles M. Collins ◽  
Susan Taylor ◽  
Bill D. Roebuck ◽  
...  
Keyword(s):  
Salt Marsh ◽  
White Phosphorus ◽  
Phosphorus Contamination ◽  
Marsh Sediments ◽  
Salt Marsh Sediments ◽  
Investigation Report

White Phosphorus Contamination of an Active Army Training Range

2014 ◽  
Vol 225 (6) ◽  
Author(s):  
Marianne E. Walsh ◽  
Michael R. Walsh ◽  
Charles M. Collins ◽  
Charles H. Racine
Keyword(s):  
White Phosphorus ◽  
Army Training ◽  
Phosphorus Contamination

Fragmentation, Catenation, and Direct Functionalisation of White Phosphorus by a Uranium(IV)-Silyl-Phosphino-Carbene Complex

2021 ◽  
Author(s):  
Josef Boronski ◽  
John Seed ◽  
Ashley Wooles ◽  
Stephen Liddle
Keyword(s):  
Room Temperature ◽  
White Phosphorus ◽  
Temperature Reaction ◽  
Carbene Complex

Room temperature reaction of the uranium(IV)-carbene [U{C(SiMe3)(PPh2)}(BIPMTMS)(μ-Cl)Li(TMEDA)(μ-TMEDA)0.5]2 (1, BIPMTMS = C(PPh2NSiMe3)2) with white phosphorus (P4) produces the organo-P5 compound [P5{C(SiMe3)(PPh2)}2][Li(TMEDA)2] (2) and the uranium(IV)-methanediide [U{BIPMTMS}{Cl}{μ-Cl}2{Li(TMEDA)}] (3). This is an unprecedented...

Formation of palladium phosphides in the reaction of bis(dibenzylideneacetone)palladium(0) with white phosphorus

2012 ◽  
Vol 82 (2) ◽  
pp. 206-211 ◽  
Author(s):  
N. I. Skripov ◽  
L. B. Belykh ◽  
L. N. Belonogova ◽  
A. V. Rokhin ◽  
T. P. Stepanova ◽  
...  
Keyword(s):  
White Phosphorus
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