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The work investigated that δ-MnO2 / Polymeric ferric sulfate (PFS) treated on electroplating wastewater containing heavy metal ions Cu2+, Pb2+, Cr3+. Effect adsorption on the pH, the amount of adsorbent, the input order and ratio of δ-MnO2 / PFS, the research determined the laboratory simulated electroplating wastewater treatment process and other basic parameters. The results showed that the best...
This study investigated the effect of leachate DOM on the adsorption of Cu, Cd, Pb and Zn in the typical cinnamon soil in Northern China. The adsorption experiments were conducted under the conditions of isotherm at 15, 25 35°C and at various acidities (pH=5-9). The results revealed that the process of soil adsorb these metals is accord with the adsorption isotherm formula of S=KCN and S=SmC/(C+1/K)...
Different expansion volume of expanded graphite was used for oil absorption experiments. The structure of expanded graphite was studied by scanning electron microscope (SEM) and optical microscope before oil-absorption and after oil-absorption. It was found that viscosity, expansion volume and particle size are the three key factors for the higher absorption capacity. But under the lower expansion...
This paper presents several models which can be applied to simulate the gas absorption in countercurrent packed bed columns with first-order chemical reaction. The hydrodynamic models predict the velocity profile in liquid film for both laminar and turbulent conditions by using the interfacial drag which is the result of gas side interaction on liquid flow rate. As the gas or liquid flow rates increase,...
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