Profiling microbial communities in manganese remediation systems treating coal mine 1 drainage 2 3 4 Dominique L. Chaput, Colleen M. Hansel, William D. Burgos, Cara M. Santelli# 5 6 Department of Mineral Sciences, National Museum of Natural History, Smithsonian 7 Institution, Washington, District of Columbia, USA; Department of Marine Chemistry 8 and Geochemistry, Woods Hole Oceanographic Insti...

Manganese is an important metal for the maintenance of several biological functions, but it can be toxic in high concentrations. One of the main forms of human exposure to metals, such as manganese (Mn), is the consumption of solar salt contaminated. Mn-tolerant bacteria could be used to decrease the concentration of this metal from contaminated sites through safer environmental-friendly altern...

introduction: natural organic matters (noms) existing in water resources led to various problems such as formation of disinfectant by-products (dbps). humic matters like humic acid (ha) are component of noms that should be removed from water. advanced oxidation process (aops) is one of the noms removal methods. the aim of this study was to survey the degradation of humic acid by electron beam i...

In this study, α-Fe2O3 nano-spheres are immobilized on the surface of manganese pyrophosphate(Mn2P2O7) support using forced hydrolysis and reflux condensation (FHRC) method. The synthesizedα-Fe2O3/Mn2P2O7 were characterized by FTIR, SEM, BET EDX, and XRD. The photocatalytic activity fromα-Fe2O3/Mn2P2O7 was investigated for the removal of toluene in aqueous solution by UV/H2O2 ...

Significant concerns have been raised over the presence of antibiotics including tetracyclines in aquatic environments. A series of Fe-Mn binary oxide with different Fe:Mn molar ratios was synthesized by a simultaneous oxidation and coprecipitation process for TC removal. Results showed that Fe-Mn binary oxide had higher removal efficiency than that of hydrous iron oxide and hydrous manganese o...

In this paper the effect of ultrasound and electrocoagulation on removal manganese from synthetic wastewater was investigated. It shown that 20 kHz alone is not very efficient for removal, but it enhances efficiency electrocoagulation. also settling has a great process because stabilizes flocs. A total four laboratory-scale experiments were conducted, optimal experiment included 10 minutes with...