Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 62,
  • Issue 3,
  • pp. 306-311
  • (2008)

Molecular Spectroscopic Study of River Nile Sediment in the Greater Cairo Region

Not Accessible

Your library or personal account may give you access

Abstract

The greater Cairo region is the most populated area in Egypt. The aquatic environment of the Nile River in this area is being affected by industrial activities. The study of the molecular structure of sediment may provide a good trace for such changes. Both Fourier transform infrared spectroscopy (FT-IR) and density functional theory (DFT) were used to study the effect of industrial waste disposal south of Cairo on the molecular structure of Nile River sediment. Four seasonal samples were collected from six sites covering 75 km along the Nile River. Grain sizes of 200 μm, 125 μm, 65 μm, and 32 μm, respectively, were examined. The results indicate that hydrated aluminum hydroxide controls the distribution of organic matter in the different grain sizes. Furthermore, the hydration of phenol may take place in grain sizes lower than 200 μm, which is indicated by the OH stretching at 3550 cm<sup>−1</sup> and verified by the obtained model. The formation of metal carboxylate bonds at 1638 cm<sup>−1</sup> (asymmetric) and 1382 cm<sup>−1</sup> (symmetric) indicate the possible interaction between heavy metals and other organic structures, mainly humic substances.

PDF Article
More Like This
A semi-analytical total suspended sediment retrieval model in turbid coastal waters: A case study in Changjiang River Estuary

Jun Chen, Eurico D'Sa, Tingwei Cui, and Xunhua Zhang
Opt. Express 21(11) 13018-13031 (2013)

Particle size distribution of river-suspended sediments determined by in situ measured remote-sensing reflectance

Yuanzhi Zhang, Zhaojun Huang, Chuqun Chen, Yijun He, and Tingchen Jiang
Appl. Opt. 54(20) 6367-6376 (2015)

Variability of apparent and inherent optical properties of sediment-laden waters in large river basins – lessons from in situ measurements and bio-optical modeling

Sylvain Pinet, Jean-Michel Martinez, Sylvain Ouillon, Bruno Lartiges, and Raul Espinoza Villar
Opt. Express 25(8) A283-A310 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved