scholarly journals Ubiquitous Presence of Fe(II) in Aquatic Colloids and Its Association with Organic Carbon

2014 ◽  
Vol 1 (10) ◽  
pp. 387-392 ◽  
Author(s):  
Bjorn P. von der Heyden ◽  
Emily J. Hauser ◽  
Bhoopesh Mishra ◽  
Gustavo A. Martinez ◽  
Andrew R. Bowie ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Aquatic Colloids ◽  
Ubiquitous Presence

Deployable Decentralized Biofilm System to Degrade Organic Carbon, Nutrients and Benzene from Wastewater

2009 ◽  
Author(s):  
Dong Chen ◽  
Che-Jen Lin ◽  
R. Gavin Jones ◽  
Sehul Patel ◽  
Rachelle Smith ◽  
...  
Keyword(s):  
Organic Carbon

Photocatalytic degradation of methylene blue from aqueous solutions using nanopillars-TiO2 thin films: Batch reactor studies

2018 ◽  
Vol 18 (3) ◽  
pp. 81-91 ◽  
Author(s):  
C. Lalhriatpuia
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Organic Carbon ◽  
Photocatalytic Degradation ◽  
Batch Reactor ◽  
Tio2 Thin Films ◽  
Initial Concentration ◽  
Bet Specific Surface Area ◽  
Interfering Ions

Nanopillars-TiO2 thin films was obtained on a borosilicate glass substrate with (S1) and without (S2) polyethylene glycol as template. The photocatalytic behaviour of S1 and S2 thin films was assessed inthe degradation of methylene blue (MB) dye from aqueous solution under batch reactor operations. The thin films were characterized by the SEM, XRD, FTIR and AFM analytical methods. BET specific surface area and pore sizes were also obtained. The XRD data confirmed that the TiO2 particles are in its anatase mineral phase. The SEM and AFM images indicated the catalyst is composed with nanosized pillars of TiO2, evenly distributed on the surface of the substrate. The BET specific surface area and pore sizes of S1 and S2 catalyst were found to be 5.217 and 1.420 m2/g and 7.77 and 4.16 nm respectively. The photocatalytic degradation of MB was well studied at wide range of physico-chemical parameters. The effect of solution pH (pH 4.0 to 10.0) and MB initial concentration (1.0 to 10.0 mg/L) was extensively studied and the effect of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of MB was demonstrated. The maximum percent removal of MB was observed at pH 8.0 beyond which it started decreasing and a low initial concentration of the pollutant highly favoured the photocatalytic degradation using thin films and the presence of several interfering ions diminished the photocatalytic activity of thin films to some extent. The overall photocatalytic activity was in the order: S2 > S1 > UV. The photocatalytic degradation of MB was followed the pseudo-first-order rate kinetics. The mineralization of MB was studied with total organic carbon measurement using the TOC (total organic carbon) analysis.

The Qur'an in the Novels of Naguib Mahfouz (in Arabic)

2014 ◽  
Vol 16 (3) ◽  
pp. 126-104
Author(s):  
M.A.S. Abdel Haleem
Keyword(s):  
Creative Writing ◽  
Nobel Prize ◽  
Literary Works ◽  
Modern Education ◽  
Ubiquitous Presence ◽  
Structural Aspects ◽  
Artistic Talent ◽  
Naguib Mahfouz

With a rich, productive career spanning over 60 years, culminating in the award of the Nobel Prize for Literature in 1988, Naguib Mahfouz's literary works have naturally attracted numerous studies and critiques. These studies have covered a great many aspects of Mahfouz's creative writing, but, perhaps because of the secular, modern education Mahfouz received (both at school and in the Department of Philosophy in Cairo University), and his personal lifestyle, they have concentrated on the socialist, materialist, and structural aspects of his work. Perhaps because of this, one important aspect of his writing has largely escaped attention: his artistic use of the language of the Qur'an. Mahfouz does not signal that a given phrase or reference is Qur'anic, leaving it to blend with the text, and making it easy to miss the fact that the Qur'an played any part in Mahfouz's use of language. However, to a reader who knows the Qur'an by heart the presence of Qur'anic language in his works is obvious, and equally obvious is Mahfouz's artistic talent in using it. Eventually, he himself announced at the end of his life that he had always had an intimate interest in the Qur'an, read it daily, and benefited from it. This article seeks to demonstrate the ubiquitous presence of Qur'anic language in Mahfouz's works, and the skill and subtlety with which he used it.

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