Zinc oxide nanoparticles were successfully synthesized under precipitation processes, using ZnSO4⋅7H2O as a Zn2þ precursor and K2CO3 used as a basic source, and hydrozincite was obtained as an intermediary, which was ...

Mn-Ce solids were used for the adsorption of phenol from aqueous solution at 25 and 50 C. The samples were prepared with a Mn-Ce molar ratio Between 0 and 100 % by the alkaline co-precipitation method (KOH). Structural ...

Smectite formation in alkaline-saline environments has been attributed to direct precipitation from solution and/or transformation from precursor minerals, but these mechanisms are not universally agreed upon in the ...

An extracellular alkaline serine protease has been purified from a strain of Aspergillus clavatus, to apparent homogeneity, by ammonium sulfate precipitation and chromatography on Sephadex G-75. Its molar mass, estimated ...

An extracellular alkaline serine protease has been purified from a strain of Aspergillus clavatus, to apparent homogeneity, by ammonium sulfate precipitation and chromatography on Sephadex G-75. Its molar mass, estimated ...

Very alkaline environments exceeding calcite buffering are globally rare but conspicuous in many sedimentary plains of the World. While the deleterious effects of high alkalinity on soils are well understood, less agreement ...

The objectives of this work were: (a) to analyze the effect of alkalinity, pH and initial Fe:P molar ratio (Fe0:P0) on the precipitation of orthophosphate using ferric chloride in the presence of activated sludge in order ...