Determination the levels hexavalent chromium and total chromium in drinking water samples on the length of the Liban Coast

Dissertant

Abu al-Qasim, Ali Tahir Abd Allah

Thesis advisor

Fadl, Muhammad Himmat Ahmad

University

Omdurman Islamic University

Faculty

Faculty of Sciences and Technology

Department

Department of Chemistry

University Country

Sudan

Degree

Ph.D.

Degree Date

2006

English Abstract

- God has given Libyan arap Jamahiriya a wealth of crude oil, so the petrochemical industries and oil refinery was constructed along of t Libyan coast.

The chromium species is one of the most important added catalysts during the refinery processing and petrochemical Productions .Chromium species may be reach ground water one way or other.

Chromium is present in two valences trivalent Chromium (non toxic) and hexavalent chromium (highly toxic).The biological effects of the two valences are markedly different.

Therefore, the determination of the levels of hexavalent chromium in ground water samples for the area adjacent to those plants (chemical and petrochemical industries) is important.

Two speciation methods were applied for chromium and subsequent determination the hexavalent in the samples.

Were collected from three different points (east, middle, west) for all differentpetrochemicalindustries.A.S.T.M.UV-VIS.

Spectrophotometeric method (D7196A) and atomic absorption (FAAS) method (D7195) were used for determination chromium in each sample.

The analysis were carried out at Ras Lanoff oil and gas petrochemical industries laboratories(Libyan),and national Research Center laboratories (Egypt).

The data obtained in this study are in accordance with the Libyan standards.

In comparison with EPA and WHO our data are high than the allowed limit.

Main Subjects

Chemistry

Topics

• Drinking water
• Lebanon

No. of Pages

127

Table of Contents

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-364405