Nova Publishers
My Account Nova Publishers Shopping Cart
HomeBooksSeriesJournalsReference CollectionseBooksInformationSalesImprintsFor Authors
            
  Top » Catalog » Books » Environment » River Sediments Chapters » My Account  |  Cart Contents  |  Checkout   
Quick Find
  
Use keywords to find the product you are looking for.
Advanced Search
What's New? more
Theory of Literature
$243.00
Shopping Cart more
0 items
Information
Shipping & Returns
Privacy Notice
Conditions of Use
Contact Us
Notifications more
NotificationsNotify me of updates to Oxidation of Anoxic Soils and Sediments: How Can We Evaluate the Risk of Heavy Metal Release?;pp. 77-101
Tell A Friend
 
Tell someone you know about this product.
Oxidation of Anoxic Soils and Sediments: How Can We Evaluate the Risk of Heavy Metal Release?;pp. 77-101 $100.00
Authors:  (Cappuyns Valérie, Swennen Rudy, European University College Brussels (HUB), Centre for Corporate Sustainability, Brussels, Belgium, and others)
Abstract:
The understanding of the behaviour and fate of contaminants in soils, sediments and dredged materials is essential to deal with their management. In the present study, heavy-metal contaminated anoxic soils and sediments originating from different locations in Belgium were exposed to oxidizing conditions during 8 to 20 weeks. The possibility of predicting and quantifying the evolution of porewater composition during sediment ripening, based on relevant physico-chemical properties and based on the results of leaching tests and/or rapid oxidation tests („resuspension experiment‟), was assessed.
In general, for all the samples studied, pH was the most important factor explaining heavy metal release during oxidation. Clay-rich samples mostly displayed a higher acid-neutralizing capacity than sandy samples, which resulted in a less important pH-decrease during oxidation and a more limited release of heavy metals. The release of heavy metals was not related to their total content as higher metal concentrations were sometimes released into the porewater from sediments with a lower total metal load.
Additionally, other factors, such as the precipitation of Fe-(hydr)oxides or the formation of secondary minerals influenced heavy metal concentrations measured in the porewater. In the resuspension test, the oxidation rate increased with a factor of 4 to 10 compared to the „normal‟ oxidation. Nevertheless, the patterns of metal release and the evolution of sediment properties (e.g. pH) were similar in both types of oxidation experiments, so that the resuspension test can be used to predict heavy metal release from contaminated sediments. 


Available Options:
Version:
This Item Is Currently Unavailable.
Special Focus Titles
01.Violent Communication and Bullying in Early Childhood Education
02.Cultural Considerations in Intervention with Women and Children Exposed to Intimate Partner Violence
03.Chronic Disease and Disability: The Pediatric Lung
04.Fruit and Vegetable Consumption and Health: New Research
05.Fire and the Sword: Understanding the Impact and Challenge of Organized Islamism. Volume 2

Nova Science Publishers
© Copyright 2004 - 2021

Oxidation of Anoxic Soils and Sediments: How Can We Evaluate the Risk of Heavy Metal Release?;pp. 77-101