Title: Journal of Environmental Protection Science

Title: Journal of Environmental Protection Science

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: Impact Factor

? Ho, Y.S. (2007), Bibliometric analysis of adsorption technology in environmental science. Journal of Environmental Protection Science, 1, 1-11.

Full Text: 2007\J Env Pro Sci1, 1.pdf

Abstract: A bibliometric analysis based on Journal Citation Reports (JCR) published by the Institute of Scientific Information (ISI) was carried out on adsorption-related studies published in any ISI subject category of environmental sciences from 1995 through 2004. Our results reveal that yearly production of adsorption-related scientific articles increased steadily over the investigation period. The United States produced 49% of all pertinent articles, followed by Germany with 11%, and UK and France with 9% respectively. English was the dominant language. About 25% each of all articles had either 2, 3, or 4 authors; the average number was 3.4 authors per article, and the maximum was 25 authors on one article. An analysis of international collaborations is provided. Summaries of the most prolific first and corresponding authors, the most frequently used keywords, and the most frequently cited articles are provided. Environmental Science & Technology, which has one of the highest impact factors in the field of environmental science journals and contained the most adsorption-related manuscripts, published 7 of the 10 most frequently cited articles.

Keywords: Bibliometrics, Adsorption, Science Citation Index (SCI), Citation Frequency

? Citraningrum, M., Gunawan, Indraswati, N. and Ismadji, S. (2007), Improved adsorption capacity of commercially available activated carbon NORIT ROW 0.8 supra with thermal treatment for phenol removal. Journal of Environmental Protection Science, 1, 62-74.

Full Text: 2008\J Env Pro Sci1, 62.pdf

Abstract: In this study, NORIT granular activated carbon was modified by thermal treatment in order to increase the adsorption capacity of activated carbon. The treatment was done under nitrogen flow at various temperatures, and caused the amount of surface basic groups of the carbon increased significantly. Boehm titration, FTIR, pH DRIFT, N₂ adsorption isotherm, DFT, SEM, and XRD were used to characterize the activated carbons. The adsorption capacity was studied by phenol adsorption in different pH of solutions. It was found that the higher the treatment temperature is, the more basic the surface of activated carbon becomes, and the more phenol is absorbed. The adsorption is generally better at pH solution above the pHpzc. The Langmuir, Freundlich, and Dubinin-Raduskevich isotherm models were used to describe the equilibria data, and the Dubinin-Raduskevich isotherm model agrees with the experimental data well.

Keywords: Activated Carbon, Surface Chemistry, Thermal Treatment, Phenol

? Nayak, P.S., Singh, B.K. and Nayak, S. (2007), Equilibrium, kinetic, and thermodynamic studies on phenol sorption to clay. Journal of Environmental Protection Science, 1, 83-91.

Full Text: 2008\J Env Pro Sci1, 83.pdf

Abstract: The sorption efficiency of low cost sorbent clay in removing phenol and m-nitrophenol (MNP) from aqueous solutions has been investigated in batch experiments. The effects of particle size of sorbent, pH, phenol concentration and temperature have been studied. The sorption isotherm has been studied in terms of the Langmuir model. The experimental data were well fitted by the Pseudo second-order kinetic model allowing the rate constant to be evaluated. This study showed that clay could be used as an efficient sorbent material for the sorption of phenols from aqueous solutions. This study is important for treatment of phenolic effluents where continuous removal can be achieved on a large scale.

Keywords: Sorption, Pseudo Second Order Equation, M-Nitrophenol, Clay, Efficient Sorbent

? Mittal, A., Mittal, J. and Kurup, L. (2007), Utilization of hen feathers for the adsorption of indigo carmine from simulated effluents. Journal of Environmental Protection Science, 1, 92-100.

Full Text: 2008\J Env Pro Sci1, 92.pdf

Abstract: The aim of this study is to exploit the hen feathers as adsorbent for the removal of a hazardous dye, Indigo Carmine from simulated aqueous solutions of the dye. Effects of various experimental parameters like pH of the solution, initial concentration of the dye, amount of adsorbent, temperature and contact time have been investigated using a batch adsorption technique to obtain information on treating simulated effluent of the dye. The sorption data was then correlated with Langmuir, Freundlich and D-R adsorption isotherm models. The kinetics of Indigo Carmine adsorption on hen feathers has also been studied by fitting the data in Lagergren’s first order and Ho-McKay’s pseudo second order kinetics hypothesis. It has been observed that the removal of Indigo Carmine over hen feathers undergoes via first order process and at all the concentration of the dye film diffusion mechanism operates.

Keywords: Indigo Carmine, Hen Feathers, Adsorption, Dye, Kinetics, Adsorption Isotherm

? Prahas, D., Kartika, Y., Indraswati, N. and Ismadji, S. (2008), The use of activated carbon prepared from jackfruit (artocarpus heterophyllus) peel waste for methylene blue removal. Journal of Environmental Protection Science, 2, 1-10.

Full Text: 2008\J Env Pro Sci2, 1.pdf

Abstract: Jackfruit peel waste which has no economic value has been utilized for activated carbon preparation. The preparation of the activated carbon was carried out using chemical activation with phosphoric acid as activating agent. The impregnation ratio was 4:1 (g H₃PO₄/g raw material) and semi carbonization process was conducted at 200C and followed with carbonization at 550C. The applicability of this adsorbent for organic pollutant removal purpose was then evaluated using Methylene Blue adsorption in aqueous solution. Langmuir and Freundlich equations were used to model the adsorption equilibria data, and pseudo-first order and pseudo-second order models were used to correlate the kinetic data. The Langmuir equation gave better correlation for methylene blue adsorption onto activated carbon produced from jackfruit peel. The kinetic adsorption data follows pseudo-second order model.

Keywords: Activated Carbon, Adsorption, Jackfruit Peel, Phosphoric Acid, Surface Chemistry, Methylene Blue

? Malarvizhi, R. and Sulochana, N. (2008), Sorption isotherm and kinetic studies of Methylene blue uptake onto activated carbon prepared from wood apple shell. Journal of Environmental Protection Science, 2, 40-46.

Full Text: 2008\J Env Pro Sci2, 40.pdf

In this study we used wood apple shell (waste biomass) as a raw material to produce activated carbon. Crushed wood apple shells were activated by using concentrated sulphuric acid at 160ºC. Batch mode experiments were conducted to assess the potential for the removal of Methylene blue dye from aqueous solution using the above carbon. Sorption isotherm and kinetic studies have been done by varying the parameters like initial concentration of Methylene blue dye solution, pH of the dye solution, sorbent dose and varying the contact time. The equilibrium data obtained were tested using Langmuir, Freundlich, and Redlich-Peterson isotherms models and the kinetic data obtained were fitted to pseudo-first order and pseudo-second order models. Nonlinear forms of equations were used to explain the isotherm models as well as the kinetic models. The experimental data were well fitted with Langmuir isotherm model and pseudo second order kinetic model. The ‘g’ value of the Redlich-Peterson isotherm is found to be one and it is a special case of Langmuir isotherm.

Keywords: Sorption, Methylene Blue, Wood Apple Shell, Isotherms, Pseudo-Second Order

? Chiu, H.S. and Wang, J.J. (2009), Adsorption thermodynamics of cobalt ions onto Attapulgite. Journal of Environmental Protection Science, 3, 102-106.

Full Text: 2009\J Env Pro Sci3, 102.pdf

Abstract: The effect of temperature on the equilibrium adsorption of cobalt ions from aqueous solution using Attapulgite was investigated. A trial-and-error non-linear method was used to obtain Langmuir parameters. Thermodynamic parameters, such as ΔG°, ΔH°, and ΔS° were calculated using adsorption equilibrium constant obtained from the Langmuir isotherm. Results suggested that the cobalt ions adsorption on Attapulgite was a spontaneous and endothermic process.

Keywords: Amoxicillin, Kinetic, Isotherm, Adsorption, Activated Carbon, Bentonite

? Ho, Y.S., Malarvizhi, R. and Sulochana, N. (2009), Equilibrium isotherm studies of Methylene blue adsorption onto activated carbon prepared from Delonix regia pods. Journal of Environmental Protection Science, 3, 111-116.

Full Text: 2009\J Env Pro Sci3, 111.pdf

Abstract: The adsorption capacity of Methylene blue from aqueous solution onto activated carbon prepared from Delonix regia pods (Flame tree pods) was investigated under various experimental conditions. Batch mode experiments were conducted to assess the potential of the above activated carbon for the removal of Methylene blue from aqueous solution. Equilibrium isotherm studies have been done by varying the following three parameters: initial concentration of Methylene blue dye solution, volume of the dye solution, and adsorbent dose on the uptake of dye from the solution. Non-linear analysis was used to compare the best-fitting isotherms. The equilibrium data obtained were fitted to Langmuir, Freundlich, and Redlich-Peterson isotherm models.

Keywords: Sorption, Isotherms, Methylene Blue, Redlich-Peterson Model, Non-Linear Analysis, Chi-Square