Biological wastewater treatment plants (BWWTP) are widely used to treat effluents from chemical process industry. However, there exist refractory substances, such as phenolic compounds, which require previous treatments. Advanced oxidation processes (AOP) are thoroughly being studied as pre-treatment to deal with such phenolic compounds before a BWWTP. Metal salts are widely used as homogeneous...

Government health authorities approved, in December 2002, the ANVISA (National Sanitary Vigilance Agency) resolution number 344, making the addition of iron and folic acid to all wheat and maize flours industrialized in Brazil obligatory. After a brief review of iron deficiency, iron overload and folic acid deficiency several questions and remarks need to be made about this universal food forti...

One-step purification and desalination The of water for drinking purposes can require multiple filtration steps technologies to remove contaminants such as salts heavy metals. Some could have value if recovered, but these are often discharged in the waste streams. Uliana et al. describe a general approach fabrication robust, tunable, adsorptive membranes through incorporation porous aromatic fr...

The open-shell iron pentacarbonyl cation [Fe(CO)5].+ was isolated by deelectronation, i.e., the single-electron oxidation of parent neutral Fe(CO)5 using [phenazineF].+ as [Al(ORF)4]− and [F-{Al(ORF)3}2]− salt (RF=C(CF3)3; phenazineF=perfluoro-5,10-bis(perfluorophenyl)-5,10-dihydrophenazine). [Fe(CO)5].+[Al(ORF)4]− fully characterized (scXRD analysis, IR, NMR, EPR, 57Fe spectroscopy, CV SQUID m...