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The study evaluated the sorption of Zn(II) ions from aqueous solution by two low-cost materials, waste somatic and dead tea fungus. The rate and extent of accumulation were affected by pH, contact time and initial zinc ion concentration. The initial removal was rapid and equilibrium was established in less than 30 min. Good correlation coefficients were obtained when the pseudo-second-order kinetic...
Pickling waste liquor was added into electroplating wastewater as a raw material and NaOH was used as a precipitant. Reacting pH (pH 7-11), volume ratio of electroplating wastewater(V1) to pickling waste liquor (V2) (V1:V2=2:1-20:1), and reaction time (5-30min) were studied by microwave hydrothermal process to synthesize ferrite. Treatment effect was determined by analyzing supernatant with Inductively...
Dustfall samples were synchronously collected at five typical urban functional areas (industrial area, traffic area, residential area, cultural and educational area, residential and commercial mixed area) of Pingdingshan City in Henan Province from May 2008 to April 2009. The principal component elements in dustfall samples were analyzed for concentrations, spatial distribution, sources and contributions...
Abstract- Column experiment simulations were carried out to determine potential metal ion migration in order to establish the environmental impact of a manganese mine wasteland and to understand the transport dynamics of heavy metal migration by way of two different soil types (tailings and tailings mud) within the Xiangtan Manganese Mine wasteland. Simulations were conducted at the Research Section...
The properties of potassium zinc hexacyanoferrate absorbing cesium were studied in this paper including particle size distribution, isotherm, kinetics and the mechanism of the adsorption. The results showed that Freundlich isotherm and pseudo-second order model were better to describe the adsorption behavior of potassium zinc hexacyanoferrate adsorbing cesium. The lab-scale test further indicated...
Drinking waters worldwide have experienced an increase in the occurrence of harmful algal blooms. Nutrients variance is hypothesised to be the main factor that causes algae populations outbreaks. The effects of trace nutrients and their interaction on the proliferation of planktonic algae colony, is one of the most complex factor in the formation process of algae blooms, and in addition the factor...
A series of Zn2+ and Eu3+ co-doped TiO2 catalysts were prepared by a modified sol-gel method. The prepared catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy(TEM) and ultraviolet-visible diffuse reflection spectroscopy(UV-vis DRS). Characteristic results clearly show that all of Zn2+ and Eu3+ co-doped TiO2 samples exclusively consist of primary anatase crystallites,...
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