Environmental Science and Pollution Research - The heavy metals, which derived from accumulated coal gangue, are important source of environmental pollution. In this study, coal gangue dumps,... 相似文献
Environmental Economics and Policy Studies - The objectives of this study are to investigate Chinese hog farmers’ minimum willingness-to-accept (WTA) subsidies for complying pro-environmental... 相似文献
Environmental Science and Pollution Research - Unintentional formation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) is observed and investigated during the thermal desorption in... 相似文献
Mechanochemistry (MC) exerts extraordinary degradation and decomposition effects on many chlorinated, brominated, and even fluorinated persistent organic pollutants (POPs). However, its application is still limited by inadequate study of its reaction kinetic aspects. In the present work, the ball motion and energy transfer in planetary ball mill are investigated in some detail. Almost all milling parameters are summarised in a single factor—total effective impact energy. Furthermore, the MC kinetic between calcium oxide/Al and hexachlorobenzene is well established and modelled. The results indicate that total effective impact energy and reagent ratio are the two factors sufficient for describing the MC degradation degree of POPs. The reaction rate constant only depends on the chemical properties of reactants, so it could be used as an important index to appraise the quality of MC additives. This model successfully predicts the reaction rate for different operating conditions, indicating that it could be suitably applied for conducting MC reactions in other reactors.
Environmental Science and Pollution Research - Because of the increasing frequency and intensity of unexpected natural disasters, providing safe drinking water for the affected population following... 相似文献