This change in the magnetic state causes a drastic modification on the superconductor/normal-state phase boundary of the hybrid sample. PR-171 In the polarized state a re-entrant transition line and a strong broadening of the phase boundary are observed.”
“BACKGROUND: Biological treatment efficiency of coking wastewater is rather poor, especially for chemical oxygen demand (COD)

and ammonia-nitrogen (NH4+-N) removal due to its complex composition and high toxicity.

RESULTS: A pilot-scale anaerobic/anoxic/oxic/oxic (A(2)/O-2) biofilm system has been developed to treat coking wastewater, focusing attention on the COD and NH4+-N removal efficiencies. Operational results over 239 days showed that hydraulic retention time (HRT) of the system had a great impact on simultaneous removals of COD and NH4+-N. At HRT of 116 h, total removal efficiencies of COD and Selleck HSP990 NH4+-N were 92.3% and 97.8%,

respectively, reaching the First Grade discharge standard for coking wastewater in China. Adequate HRT, anoxic removal of refractory organics and two-step aerobic bioreactors were considered to be effective measures to obtain satisfactory coking effluent quality using the A(2)/O-2 biofilm system. The correlation between removal characteristics of pollutants and spatial distributions of biomass along the height of upflow bioreactors was also revealed.

CONCLUSION: The study suggests that it is feasible to apply the A(2)/O-2 biofilm process for coking wastewater treatment, achieving desirable effluent quality and steady process performance. (c) 2012 Society of Chemical Industry”
“The composite films of sodium nitrite (NaNO(2)) and poly(vinyl alcohol) (PVA) have been deposited by spray technique at different substrate temperatures. The x-ray diffraction study revealed structural distortion (b/a ratio) in the composite films. The field-emission scanning electron microscopy images suggest that learn more PVA polymer facilitate the homogeneous distribution of spherical grains of NaNO(2) with less porosity. The grain size is found to increase with the deposition temperature.

The study of hysteresis loop characteristics gave optimum P(r) at deposition temperature of 200 degrees C, which may be due to large structural distortion and less porosity. The back switching calculations and the switching characteristics indicate that 180 degrees domains contribute more in the composite than the pure NaNO(2) film. The 1/epsilon(0)(dP/dE)-E curves exhibit two coercive fields correspond to 180 degrees and 90 degrees domains. The composite film also showed improved fatigue characteristics.”
“BACKGROUND: In the BioDeNOX technology for NOX removal from flue gas, bioreduction of Fe(II)EDTA-NO and Fe(III)EDTA are core processes. In this study, a newly isolated strain, Paracoccus denitrificans, was used to reduce Fe(II)EDTA-NO with glucose and Fe(II)EDTA as donor electrons. To better understand the change law of Fe(II)EDTA, the process of Fe(II)EDTA-NO reduction by P.