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Heavy Metal Leaching in Different Environments: Experimental Study Of Metals Distribution Attenuation And Mobility In Two Oklahoma Soils Amended With Sewage Sludge
This study was conducted to provide information on leaching and attenuation of heavy metals on two different soil types applied with sewage sludge (Biosolids). The research was based on soil column leaching procedure to evaluate the leaching capacity of clay and sandy soils. The objectives of the study were: to study the pollution potential of leachate...
This study was conducted to provide information on leaching and attenuation of heavy metals on two different soil types applied with sewage sludge (Biosolids). The research was based on soil column leaching procedure to evaluate the leaching capacity of clay and sandy soils. The objectives of the study were: to study the pollution potential of leachate from land application of sewage sludge in relation to the attenuation mechanisms in soils of different characteristics and, to recommend future research aimed at providing a base for development of pollution control procedures and guidelines regarding land disposal of sewage sludge. Two soil types (Norge clay and Dougherty sandy soils), three soil horizons, three treatments and three replications were used for the design of this experiment. The study showed the soil properties most useful in predicting mobility of trace metals in soils are texture, content of iron oxides, content of lime, soil pH, and organic matter. The most mobile heavy metals were zinc and nickel and the least mobile was chromium. There is no general agreement concerning the maximum allowable concentrations of various metals in sewage sludge.
WHAT'S BONUS TIME?
Normally, new semester rental orders are exactly 125 days.
With “Bonus Time” you can order early and get a FREE extension until 5/19/15*.
It’s our little way of rewarding you early renters for planning ahead.
But do hurry. The “Bonus Time” offer runs out on 1/8/15 (11PM PST).
* It can take up to 24 hours for the extension to appear in your account after you receive your textbooks.
Since launching the first textbook rental site in 2006, BookRenter has never wavered from our mission to make education more affordable for all students. Every day, we focus on delivering students the best prices, the most flexible options, and the best service on earth. On March 13, 2012 BookRenter.com, Inc. formally changed its name to Rafter, Inc. We are still the same company and the same people, only our corporate name has changed.