Adsorption of zinc (Zn), cadmium (Cd), and nickel (Ni) from aqueous solutions by corncob (CC) granular activated carbon prepared (GACC) were carried out. Synthetic Cd, Ni, Zn at 3.0 ppm each used to perform the adsorption process. A batch pattern was determine kinetics as well isotherm parameters. The obtained results using either both CC GACC separately found be matched with Langmuir model. Fu...

Carbon dioxide is the main undesirable compound present in raw natural gas and biogas. Physisorption based adsorption processes such as pressure swing adsorption (PSA) are one of the solutions to selectively adsorb CO(2) from CH(4). Some hybrid crystalline porous materials that belong to the family of metal-organic frameworks (MOFs) show larger CO(2) adsorption capacity compared to the usual in...

background: the objective of this work was developing a simple and stable time-based on-line setup for assessing the potential of mercury (hg) vapor adsorption of the commercial sorbents used in air sampling and control operation followed by cold vapor atomic absorption spectrometry (cvaas). methods: a special designed separation chamber was used where reduction of the injected hg (ii) solution...

Application of Granular Activated Carbon (GAC) in adsorption process has been studied for the advanced treatment of municipal and industrial wastewater. Because of entering poisonous compounds such as furfural, phenol and sulfides into the oily wastewater of Tehran refinery, biological aeration basins of wastewater treatment unit may not have the desired performance of COD reductio...

objective(s):  in our study, graphene oxide-tio2 nanocomposite (go/tio2) was prepared and used for the enrichment of rutin from real samples for the first time.  materials and methods:   the synthesized go/tio2 was characterized by x-ray diffraction, scanning electron microscopy, and ft-ir spectra.  the enrichment process is fast and highly efficient. the factors including contact time, ph, and...

in this paper, we give some characterizations for legendre spherical, legendre normal and legendre rectifying curves in the 3-dimensional sasakian space. furthermore, we show that legendre spherical curves are also legendre normal curves. in particular, we prove that the inverse of curvature of a legendre rectifying curve is a non-constant linear function of the arclength parameter.

The article discusses the prospects for purification of industrial wastewater from phenols in oil refining, petrochemical and chemical industries with production waste. technological scheme treatment by modified carbonate sludge is given. In technologies, it proposed to use a large-tonnage energy waste - sludge. paper considers technology granulation, its characteristics are studied. To evaluat...

In this study, the adsorption of amoxicillin onto activated carbon was investigated. The effect of particle size and the effluent flow rate was discussed as well as the kinetics and isotherm of adsorption equilibrium. The isotherm equilibrium studies showed that the Langmuir model was appropriate for describing the adsorption equilibrium of amoxicillin onto the activated carbon. Furthermore, th...

Separation of short single- and double-stranded DNA typically requires gel electrophoresis followed by DNA extraction, which is a time consuming process. Graphene oxide adsorbs single-stranded DNA more quickly than double-stranded ones, allowing for selective removal of the former with a simple mixing and centrifugation operation. The effect of DNA length and salt on adsorption selectivity has ...