James F. Kwiatkowski's Activated carbon: classifications, properties and PDF

By James F. Kwiatkowski

ISBN-10: 1620816660

ISBN-13: 9781620816660

Provides topical study within the research of activated carbon, consisting of issues equivalent to the skin chemistry of activated carbons and as catalyst helps; thermal processing of activated carbons from agro-industrial wastes; activated carbon as a steel oxide aid; and, extra.

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Extra resources for Activated carbon: classifications, properties and applications

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The constants are calculated using the intercept and the slope of the linear plot of ln qe versus ln Ce . According to Behnamfard and Salarirad [72], n>1 or 0< 1 <1, shows that adsorptive forces on the surface of adsorbent are weak. But, n according to Omar et al. [74] this implies that it is a result of strong adsorptive forces. Temkin or Tempkin isotherm can be expressed as Eq. 15) where KT (L mg-1) and qm (mg g-1) are isotherm constants. qm is a constant related to heat of adsorption. In this model heat of adsorption decreases linearly by increasing the coverage because of adsorbate-adsorbate interactions, and binding energies distribute uniformly up to a maximum amount.

89] have studied PAC capability in the removal of these compounds. The results show that all these endocrine disrupting compounds are removed by PAC in the range of 31-99% depending on type and dosage of PAC and presence or absence of NOM in water sample. The removal order is as follows: 17b-estradiol, 17a-ethynyl estradiol and bisphenol A. Freundlich isotherm model fits well to the experimental data. This study shows that PAC can remove more than 99% of the three estrogenic compounds. So, it can be resulted that PAC can be used in removal of endocrine disrupting compounds from contaminated water.

Aber, M. Zarei and M. Sheydaei compounds [88]. So, it is very interesting to find a proper method for the removal of mercury from polluted wastewater. Ranganathan [88] has reported the preparation of PAC from Casurina equisetifolia leaves with particle size ranging from 45 to 75 µm. 5. It has been found that the equilibrium adsorption of Hg (II) fits well the Langmuir equation. The results show that the higher concentration of NaCl in the solution decreases Hg (II) removal. 9%, resulting in a conclusion that the adsorption is a promising method for the removal of very toxic mercury ions in aqueous environments.

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Activated carbon: classifications, properties and applications by James F. Kwiatkowski

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