Zinc | An-Najah Staff

Adsorption of Lead and Zinc From Used Lubricant Oil Using Agricultural Soil: Equilibrium, Kinetic and Thermodynamic Studies

Tue, 2015-01-27 14:30 — Ahmad A. Abu-Obaid

Journal Title, Volume, Page:

J. Mater. Environ. Sci. 6 (2) (2015) 580-591 01/2015; 6(2):580-591

Year of Publication:

2015

Authors:

Jodeh S.

Odeh R

Sawalhi M.

Abu Obeid A.

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Salghi R.

Hammouti B.

Radi S.

Warad I.

Preferred Abstract (Original):

In this study we examined the adsorption, kinetics and thermodynamics of heavy metals of used engine oil that come during engine operation and forsaw the possibility of polluting soil and ground water. the effect of temperature on
adsorption was investigated in the range (15 – 45o C) and results showed that maximum removal occurred at 45C. Effect of pH indicated that maximum removal of both Zn and Pb was at pH =13. Increasing adsorbent (soil) dosage from 0.5 to 3g showed that maximum adsorption of both Zn and Pb onto soil occurred with 3 g of soil. Equilibrium concentration happened at 90 minutes. Lanqmuir and Freiundlich models were used to study adsorption process at equilibrium and the
results showed that Frenundlich is better for Zn while Lanqmuir fits better with Pb. In order to investigate adsorption behavior of Zn and Pb on soil, three kinetic models applied; Pseudo-first order, Pseudo-second order and intra- particle diffusion models were applied to fit kinetics data. The rate constants and correlation coefficients were determined for the three models. Thermodynamic parameters such as Gibbs free energy, standard enthalpy and standard entropy change were calculated for both zinc and lead.

Effect of Zinc on the Growth and Uptake of Zinc by Green Beans

Wed, 2014-04-02 09:07 — Marwan N. Haddad

Journal Title, Volume, Page:

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology Volume 29, Issue 4, 1994

Year of Publication:

1994

Link:

http://www.tandfonline.com/doi/abs/10.1080/10934529409376061#.UzvGmVd8BSE

Authors:

Marwan Haddad

Department of Civil Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine

Current Affiliation:

Department of Civil Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine

[email protected]

Preferred Abstract (Original):

Pot experiments were conducted to study the effect of different levels of Zn supplied through irrigation water on green beans using brown earth soil. Plants were grown for 15 weeks without nutrients addition. Zinc concentrations increased in all experimental plants. Zinc concentration in various plant organs increased for the first four doses (0.1 to 12.5 mg/1 Zn), then decreased for higher Zn doses. There was a trend in the zinc concentration translocated into various plant tissues(roots > stems > leaves and fruits). There was no clear trend in zinc uptake into these tissues as a response to the levels of Zn added. Visible effects on the growth of the plants were not observed. However, the total dry weight of the plants decreased about 36.7% for the 0.1 to 2.5 mg/1 Zn dose and with no further reductions for higher Zn additions.

Removal of Zinc from Aqueous Solutions by Dry Plant Leaves

Sun, 2014-01-12 14:13 — Mohammed Al-Subu'

Journal Title, Volume, Page:

Process Safety and Environmental Protection Volume 81, Issue 4, July 2003, Pages 236–242

Year of Publication:

2003

Link:

http://www.sciencedirect.com/science/article/pii/S0957582003710921

Authors:

R. Salim

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

M. Al-Subu

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

I. Abu-Shqair

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

H. Braik

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

Removal of zinc from aqueous solutions by 15 species of plant leaves was studied. The maximum efficiency of removal was found to be by walnut and poplar leaves at pH 6 with a maximum removal of 82%. Increasing the concentration of plant leaves increased the removal of zinc up to a limit. Agitation of solution increased the efficiency of the removal process. The presence of competing and complexing agents affected the removal process negatively but also positively in few cases.

Effect of Root‐Treatment of Cauliflower, Parsley and Spinach Plants with Copper and Zinc on the Plant‐Growth

Thu, 2014-01-09 14:34 — Mohammed Al-Subu'

Journal Title, Volume, Page:

Water Air and Soil Pollution, 01/1995; 30(10):2123 - 2132

Year of Publication:

1995

Link:

http://www.tandfonline.com/doi/abs/10.1080/10934529509376328?journalCode=lesa19#...

Authors:

Mohammed Alsubu

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Radi Salima

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

M. Isaa

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

The effect of copper and zinc ions as growth ‐ inhibitors of plants was studied by the root‐treatment of cauliflower, parsley and spinach plants. Both copper and zinc showed an obvious growth‐inhibition effect on the growth of the studied plants as well as on their various parts.The sensitivities of cauliflower, parsley and spinach plants towards treatment with copper and zinc solutions were compared between each other as well as between their various parts.The toxicity effects of zinc and copper on the growth of plants were compared. Copper showed higher toxic effect on the growth of treated cauliflower, spinach and parsley plants as well as on the growth of the various parts of treated plants.

Syntheses, Physico-Chemical Studies and Antioxidant Activities of Transition Metal Complexes with a Perimidine Ligand

Thu, 2013-03-14 17:41 — Ismail Warad

Journal Title, Volume, Page:

Zeitschrift für anorganische und allgemeine Chemie, Volume 638, Issue 5, pages 881–886, April 2012

Year of Publication:

2012

Link:

http://onlinelibrary.wiley.com/doi/10.1002/zaac.201100561/abstract?systemMessage...

Authors:

Dr. Mohammad Azam

Department of Chemistry, King Saud University, P. O. Box 2455, Riyadh 11451, KSA

[email protected]

Ismail Warad

Department of Chemistry, King Saud University, P. O. Box 2455, Riyadh 11451, KSA

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Saud Al-Resayes

Department of Chemistry, King Saud University, P. O. Box 2455, Riyadh 11451, KSA

Maryam Zahin

Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202 002, India

Iqbal Ahmad

Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh 202 002, India

Mohammad Shakir

Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India

Preferred Abstract (Original):

A series of mononuclear complexes of the type, [MLCl2] [M = CoII, NiII, CuII, and ZnII] with a pyrimidene-type ligand, which was synthesized by the reaction of 2-furaldehyde and 1, 8-diaminonaphthalene, was obtained. The ligand and its complexes were characterized by elemental analysis, IR, NMR, EPR, and UV/Vis spectroscopy, ESI-mass spectrometry, magnetic susceptibility, molar conductivity, and thermogravimetric analyses. On the basis of UV/Vis spectroscopic and magnetic susceptibility data, an octahedral arrangement was assigned around all metal ions. The low molar conductivity data for all the complexes show their non-electrolytic nature. The thermal behavior of the complexes was studied by TGA analyses. The electrochemical study carried out on the CuII complex exhibits a quasi reversible redox process. The ligand and its complexes showed potential antioxidant and antimicrobial activities.

Removal of Zinc From Aqueous Solutions by Dry Plant Leaves

Mon, 2011-02-28 12:01 — Ibrahim Diab Abu-Shqair

Journal Title, Volume, Page:

Process Safety and Environmental Protection, Volume 81, Issue 4, Pages 236-242

Year of Publication:

2003

Link:

http://www.sciencedirect.com/science/article/pii/S0957582003710921

Authors:

Ibrahim Diab Abu-Shqair

Chemistry Department, An-Najah University, Nablus, Palestine

Current Affiliation:

Chemistry Department, An-Najah University, Nablus, Palestine

[email protected]

R. Salim

Chemistry Department, An-Najah University, Nablus, Palestine

Mohammed M. Al-Subu

Chemistry Department, An-Najah University, Nablus, Palestine

H. Braik

Chemistry Department, An-Najah University, Nablus, Palestine

Preferred Abstract (Original):

Removal of zinc from aqueous solutions by 15 species of plant leaves was studied. The maximum efficiency of removal was found to be by walnut and poplar leaves at pH 6 with a maximum removal of 82%. Increasing the concentration of plant leaves increased the removal of zinc up to a limit. Agitation of solution increased the efficiency of the removal process. The presence of competing and complexing agents affected the removal process negatively but also positively in few cases.

Conditions for Minimum Adsorption of Zinc on Container Surfaces

Wed, 2010-04-21 14:32 — Hikmat S. Hilal, D.Sc.

Journal Title, Volume, Page:

Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering Volume 21, Issue 7, 1986, Pages 681 - 690

Year of Publication:

1986

Link:

http://www.informaworld.com/smpp/content~db=all~content=a906770903

Authors:

Hikmat S. Hilal

Department of Chemistry, An-Najah N. University, Nablus, PO Box 7, West Bank, Palestine

Current Affiliation:

Department of Chemistry, An-Najah N. University, Nablus, PO Box 7, West Bank, Palestine

[email protected]

Radi Salim

Department of Chemistry, An-Najah N. University, Nablus, PO Box 7, West Bank, Palestine

Preferred Abstract (Original):

Adsorption of zinc on container surfaces has been studied. Various factors affecting the amount of this adsorption have been investigated. These include the pH, the concentration of zinc ions in solution, treatment of the surface, the type of container, the shape of container, pre-saturation of the container surface with metal ions, and the presence of foreign ions in solution. The best conditions for storing zinc solutions have been concluded. Zinc solutions are best acidfied and stored in polythene containers or stored without acidification in steel containers when acidification is required to be avoided.