Acid-Volatile Sulfide Oxidation in Coastal Flood Plain Drains: Iron-Sulfur Cycling and Effects on Water Quality
作者： Edward D. Burton , Richard T. Bush , Leigh A. Sullivan
DOI: 10.1021/ES0520058
关键词:
摘要: The effect of acid-volatile sulfide (AVS) oxidation on Fe−S cycling and water quality in coastal flood plain drains from acid-sulfate soil landscapes was examined using natural sediments synthetic iron monosulfide. Oxidation AVS occurred rapidly (half-time ≤ 1 h) produced elemental sulfur (S80(s)) oxyhydroxide (FeOOH(s)). initial rapid process without significant acidification or changes to the aqueous-phase composition. Severe (pH < 4) only once S80(s) began oxidize SO4 (within 2−3 days oxidation). Our results demonstrate, for first time with sediments, a pH-buffered (near-neutral) step trigger being S80(s). Acidification resulted pH-dependent release large amounts Al, Mn, Ni, Zn even though sediment metal content low.
acs.org
scu.edu.au
core.ac.uk
harvard.edu参考文章(19)
D. G. Schulze, J. B. Dixon, Soil mineralogy with environmental applications. Soil mineralogy with environmental applications.. ,(2002)
Richard T Bush, Leigh A Sullivan, Diane M Fyfe, Acid sulfate soil drain ooze: distribution, behaviour and implications for acidification and deoxygenation of waterways pp. 91- 99 ,(2002)
User's guide to PHREEQC (Version 2)-a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations Water-Resources Investigations Report. ,vol. 312, ,(1999) , 10.3133/WRI994259
Stuart L. Simpson, Simon C. Apte, Graeme E. Batley, Effect of Short-Term Resuspension Events on Trace Metal Speciation in Polluted Anoxic Sediments Environmental Science & Technology. ,vol. 32, pp. 620- 625 ,(1998) , 10.1021/ES970568G
Richard T. Bush, Diane Fyfe, Leigh A. Sullivan, Occurrence and abundance of monosulfidic black ooze in coastal acid sulfate soil landscapes Soil Research. ,vol. 42, pp. 609- 616 ,(2004) , 10.1071/SR03077
L. A. Sullivan, R. T. Bush, D. M. McConchie, A modified chromium-reducible sulfur method for reduced inorganic sulfur: optimum reaction time for acid sulfate soil Soil Research. ,vol. 38, pp. 729- 734 ,(2000) , 10.1071/SR99088
Edward D. Burton, Ian R. Phillips, Darryl W. Hawker, Reactive sulfide relationships with trace metal extractability in sediments from southern Moreton Bay, Australia Marine Pollution Bulletin. ,vol. 50, pp. 589- 595 ,(2005) , 10.1016/J.MARPOLBUL.2005.01.022
Elizabeth J. P. Phillips, Derek R. Lovley, Determination of Fe(III) and Fe(II) in oxalate extracts of sediment Soil Science Society of America Journal. ,vol. 51, pp. 938- 941 ,(1987) , 10.2136/SSSAJ1987.03615995005100040021X
G. G. Pohlman, Soil Science Society of America Soil Science Society of America Journal. ,vol. 4, pp. 446- 447 ,(1940) , 10.2136/SSSAJ1940.036159950004000C0132X
Richard T. Bush, Leigh A. Sullivan, Diane Fyfe, Scott Johnston, Redistribution of monosulfidic black oozes by floodwaters in a coastal acid sulfate soil floodplain Soil Research. ,vol. 42, pp. 603- 607 ,(2004) , 10.1071/SR03073