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The adsorption of lead by soils is strongly influenced by temperature and various soil characteristics. Soil pH is one of the most important parameters influencing lead-solution and soil-surface chemistry since it affects lead speciation and the charge of soil surface groups. In general, lead adsorption is small at low pH values, and it increases with the increase in soil pH. Some investigations supported...
The copper heavy metal wastewater does lots of harm to people and it is difficult to deal. Using flocculant to treat copper wastewater has a lot of advantages. Under certain conditions proceeded modification of a kind of clay which has the unique characteristic of absorbability. Then the modification clay and the polymerization iron carbonyl ion can play polyreaction, to innovate a new type of macromolecule...
Cu2+ and Zn2+ adsorption onto the synthetic iron oxides prepared in laboratory including ferrihydrite (amorphous), goethite and hematite, and natural iron ore powder were investigated. The results showed that Cu2+ and Zn2+ adsorption onto the iron oxides: ferrihydrite, goethite, hematite and iron ore powder could be described by non-linear Langmuir, linear Freundlich, and Temkin models with significant...
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