The development of technologies based on the use of sulfate-reducing bacteria (SRB) to treat sulfate contaminated wastewaters has produced a cost-effective route to precipitate metals. In this work the effects of cadmium and manganese in the SRB growth rates were assessed. It was observed that duplication time is 50h in the presence of cadmium and 6h in the presence of manganese, thus showing t...

Abstract This paper presents the results of wastewater treatment at a mining enterprise developing complex ore deposit in Murmansk region, Russia. The main pollutants are sulfate, manganese, and strontium. For this treatment, two-stage scheme was proposed tested using two sorbents (at pH 6): an aminated peat biosorbent to remove sulfate commercial sorbent based on mineral brucite metals. Optima...

Manganese reduction was catalyzed by enrichment cultures of anaerobic bacteria obtained from coastal marine sediments. In the absence of oxygen, these enrichment cultures reduced manganates when grown on either lactate, succinate, or acetate in both sulfate-free and sulfate-containing artificial seawaters. Sodium azide as well as oxygen completely inhibited microbial manganese reduction by thes...

Remarkable LAB-yeast mixed-species biofilm was formed by lactic acid bacteria (LAB) Lactobacillus plantarum ML11-11 isolated from Fukuyama pot vinegar and Saccharomyces cerevisiae. This mixed-species biofilm formation increased in proportion to the YPD medium concentration but decreased in proportion to the MRS medium concentration. The effect of MRS components on mixed-species biofilm formatio...

Antioxidant nanocomposites of advanced functional and colloidal features were developed by controlled heteroaggregation manganese oxide sulfate latex particles.

inc alloy electrodeposits are finding increased acceptance as improved replacements for conventional electrogalvanized finishes. Zinc-nickel appears to be experiencing the most widespread use, although zinc-cobalt and zinc-iron also have well-defined market shares. The zinc-manganese system has not been widely reported; however, some investigators have examined its corrosion resistance, polariz...

In the title compound, [Mn(C(2)H(8)N(2))(3)]SO(4), the metal atom (site symmetry 3.2) is coordinated by six N atoms from three ethyl-enediamine (en) ligands in a slightly distorted octa-hedral geometry. The en ligands are generated from one half-mol-ecule in the asymmetric unit. The O atoms of the sulfate anion (S site symmetry 3.2) are disordered over four orientations in a 0.220 (12):0.210 (1...