Electrocoagulation (EC) was used for the removal of anthraquinone dye, Alizarin Red S (ARS) from aqueous solution. The process was carried out in a batch electrochemical cell with Al electrodes in a monopolar connection. The effects of some important parameters such as current density, pH, temperature and initial dye concentration, on the process were investigated. Equilibrium was attained afte...

This study was investigation employed the batch adsorption method using Bardakçı Clay/Van as an adsorbent to remove crystal violent, a cationic dye from aqueous solution. The effects of pH, amount, interaction time and concentration were investigated determine optimal conditions. conditions determined be pH=6, 0.6 g reached equilibrium at 25th minute. isotherm Langmuir, Freundlich Dubinin–Radus...

In this paper, certain new results concerning the maximum modulus of polar derivative a polynomial with restricted zeros are obtained. These estimates strengthen some well known inequalities for due to Turán, Dubinin and others.

This article describes the use of a power plant waste-Bottom Ash, as effective adsorbent for the removal of toxic Azo dyes Carmoisine and Chrysoidine Y from their aqueous solution. The paper incorporates comparative study and discussion of the adsorption characteristics of these dyes on the economically effective adsorbent with special emphasis on the effects of time and temperature. The charac...

Recently, iron nanoparticles are increasingly being tested as adsorbents for various types of organic and inorganic pollutants. In this study, nanoparticles of zero-valent iron (NZVI) synthesized under atmospheric conditions were employed for the removal of Ba(2+) ions in a concentration range 10(-3) to 10(-6) M. Throughout the study, (133)Ba was used as a tracer to study the effects of time, c...

In this work, a flow injection analysis (FIA) method for the trace determination of lead, cadmium, nickel and cobalt in natural waters by formation of neutral chelates with ammonium pyrrolidine dithiocarbamate (APDC) was developed. The neutral chelates formed was retained in a mini-column packed with Linde type A zeolite (LTA) and type Y Faujasite zeolite (FAU) and then eluted with methyl isobu...

Rhinozachvatkinia calonectris sp. n., a new species of the feather mite genus Rhinozachvatkinia Mironov, 1989 (Avenzoariidae: Bonnetellinae), is described from two species of shearwaters in the North-East of the Atlantic Ocean, Calonectris edwardsii (Oustalet) (type host) and Calonectris borealis (Cory) (Procellariiformes: Procellariidae). We completed the morphological description of this new ...

Using grand canonical Monte Carlo simulation we show, for the first time, the influence of the carbon porosity and surface oxidation on the parameters of the Dubinin-Astakhov (DA) adsorption isotherm equation. We conclude that upon carbon surface oxidation, the adsorption decreases for all carbons studied. Moreover, the parameters of the DA model depend on the number of surface oxygen groups. T...