<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Xu, X.</style></author><author><style face="normal" font="default" size="100%">N.R. Thomson</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Hydrogen peroxide persistence in the presence of aquifer materials.</style></title><secondary-title><style face="normal" font="default" size="100%">Soil Sed. Contam. 19(5). xx-xx.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2010</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&amp;nbsp;&lt;/p&gt;&lt;h2&gt;Xu, X., N.R. Thomson, 2010. Hydrogen peroxide persistence in the presence of aquifer materials. Soil Sed. Contam. 19(5). xx-xx.&lt;/h2&gt;&lt;p&gt;&lt;em&gt;In situ&lt;/em&gt;&amp;nbsp;chemical oxidation using hydrogen peroxide for groundwater remediation has received a great deal of attention over the past decade. &amp;nbsp;A comprehensive investigation that focused on the interaction between hydrogen peroxide and eight aquifer materials was performed using both batch and column experiments. &amp;nbsp;The results from the batch experiments indicated that the decomposition of hydrogen peroxide in the presence of various aquifer materials followed a first-order rate law, and was strongly affected by the content of amorphous transition metals. &amp;nbsp;The exposure of the aquifer solids to hydrogen peroxide for 14 days indicated that not all forms of NOM contributed the observed decomposition. &amp;nbsp;Multiple linear regression analysis was used to generate two potentially useful predictive decomposition rate coefficient relationships based on the various aquifers material characteristics.&amp;nbsp; Column experiments were conducted with five representative aquifer materials to complement and expand the findings from the batch experiments.&amp;nbsp; As expected the decomposition rate coefficients were higher in the column experiments relative to the batch experiments due to the larger solids mass to solution volume ratio.&amp;nbsp; Attempts to simulate the column observations indicated that dissolution and transport of metals from aquifer solids may play an important role in hydrogen peroxide persistence in some subsurface environments.&lt;/p&gt;&lt;p&gt;&amp;nbsp;&lt;/p&gt;</style></abstract></record></records></xml>