Results 31 to 40 of about 756,954 (308)

Recovery of Rubidium and Cesium Resources from Brine of Desalination through t-BAMBP Extraction

open access: yesMetals, 2020
50 billion cubic meters of brine every year creates ecological hazards to the environment. In order to reuse brine efficiently, rubidium and cesium were recovered in this experiment.
Wei-Sheng Chen   +5 more
doaj   +1 more source

Methods for removing heavy metals from water and wastewater: A review study [PDF]

open access: yesPizhūhish dar Bihdāsht-i Muḥīṭ., 2020
Background and purpose: Heavy metals are one of the stable pollutants that do not decompose in nature and can import into the environment by sewage or wastewater of various industries. Usually, small quantities of these metals are required for the normal
کیوان شایسته, Gity Behboody
doaj   +1 more source

Synthesis of Cu0.5Mg0.5Fe2O4 nanoparticle by chemical precipitation method and its effect on reduction of charge transfer resistant in electron transfer systems [PDF]

open access: yesشیمی کاربردی روز, 2015
In this work, the Cu0.5Mg0.5Fe2O4 nanoparticles were prepared by chemical precipitation method. The prepared powders were calcinated at 400-800 C. Properties of nanoparticles investigate using electrochemical impedance spectroscopy, X-ray diffraction ...
Farshad Taleshi   +2 more
doaj   +1 more source

Application of homogeneously precipitated nanosized Fe-doped alumina powders to carbon nanotube growth. [PDF]

open access: yes, 2010
Homogeneous precipitation of hydroxides was investigated as an alternative method to synthesize Fe-doped aluminum oxide (α-Al2−2xFe2xO3) particles over which carbon nanotubes (CNTs) were grown via a catalytic chemical vapor deposition (CCVD) method ...
Alvarez   +23 more
core   +2 more sources

Processes, microstructure and properties of vanadium microalloyed steels [PDF]

open access: yes, 2009
Vanadium as an important alloying element in steels was initially associated with the properties achieved following tempering. Interest in the microstructure was stimulated by the advent of transmission electron microscopes with a resolution of ~1nm ...
Baker, T.N.
core   +1 more source

Predicting Water Cycle Characteristics from Percolation Theory and Observational Data. [PDF]

open access: yes, 2020
The fate of water and water-soluble toxic wastes in the subsurface is of high importance for many scientific and practical applications. Although solute transport is proportional to water flow rates, theoretical and experimental studies show that heavy ...
Egli, Markus   +4 more
core   +2 more sources

Theory of Chemical ProcessingUsing Pulsed Precipitators [PDF]

open access: yesAustralian Journal of Physics, 1995
A theoretical analysis is given, using methods of gaseous electronics and plasma chemistry, of the removal of S02 and nitrogen oxides from flue gases by use of pulsed electrical corona. Calculations indicate that the rate coefficients in a typical flue gas for the electron dissociation of nitrogen, oxygen and water vapour only become appreciable for ...
JJ Lowke, R Morrow
openaire   +1 more source

Location and chemical composition of microbially induced phosphorus precipitates in anaerobic and aerobic granular sludge [PDF]

open access: yes, 2012
This work focuses on combined scanning electron microscopy and energy dispersive X-ray analysis (SEM-EDX) applied to granular sludge used for biological treatment of high-strength wastewater effluents. Mineral precipitation is shown to occur in the core
Biscans, Béatrice   +3 more
core   +4 more sources

Some characteristics of chemical precipitation [PDF]

open access: yesTellus B, 1983
Two very dissimilar cold frontal occlusions deposited 6 mm and 60 mm of rain respectively at anobservatory in the rural northeastern U.S.A. Water precipitation was carefully observed. in conjunction with other meteorological parameters, through both storm systems.The concentration of several ionic substances were measured in specimens of rain ...
openaire   +2 more sources

Distribution modeling, soil properties, and variation in essential oils chemical composition of Rhanterium adpressum Coss. & Dur. [PDF]

open access: yes, 2019
Modeling the distribution of Rhanterium adpressum, an endemic species from southwestern Algeria, and the interactions of soil’s chemical properties with the variability of chemical composition of its essential oils makes the objective of this study ...
Elhouiti, Fatiha   +3 more
core   +2 more sources

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