(C) 2010 American Institute of Physics. [doi:10.1063/1.3465637]“
“The mechanism of increasing efficiency of amine-type antioxidant (AO)-N-plenyl-2-naphthylamine (Neozon D)-used to inhibit oxidation of polyethylene (PE) under conditions of contact between the polymer GW2580 and metallic copper has been investigated. It has been learned experimentally, that the hypothesis of formation

of complex compounds by reaction of AO and copper-containing products-resulted from contact oxidation of PE melt on copper-is invalid. A different mechanism of raising the inhibiting efficiency of amine AO is suggested, according to which copper catalyzes transformation of Neozon D to nitroxyl radicals. The latter are excellent inhibitors for oxidative transformations and appreciably enhance polymer resistance to oxidation. An amine-type AO can be converted to nitroxyl radicals in two ways: (i) before AO is added to the polymer; (ii) during direct contact between the AO and metallic copper (i.e., copper as metal) which is a component of the metalopolymeric material (e.g., polymer-coated substrate; filler particles introduced into a polymer) that is subjected

to oxidation. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 1430-1435, 2010″
“The removal of phosphorus this website from reject water, which is the liquid fraction produced after dewatering of anaerobically digested activated sludge on the municipal wastewater treatment plants (MWWTPs), can significantly reduce the phosphorus load to the main stream of the MWWTPs. Ferric or ferrous reagents can be used for this removal but the significantly cheaper option Could be the production see more of ferrous reagent using bioreduction of iron ore. The removal of phosphorus from reject water using anoxic bioreduction of iron ore was studied in the rotating reactor, which was selected to avoid the clogging of the pores between iron ore particles. The highest phosphorus removal rate from reject water in the rotating

reactor, i.e. the parameter which can be used in the design of the continuous process, was 25 ring P/L day. Significant role in the iron ore bioreduction is playing the formation of the fine particles from initially loaded coarse particles of iron ore during rotation of the reactor. (C) 2009 Elsevier B.V. All rights reserved.”
“Flexographic photopolymer plates have a wide range of commercial applications despite the fact that recycling of such materials is difficult. In consequence, there is a large bulk of leftover material around the world. In this research, the photopolymer plate waste products, identified as styrene-butadiene rubber (SBR)/polyester are blended into common polypropylene (PP) and ethylenevinylacetate (EVA) resins at different loading percentages.