Geography, asked by Evya6164, 1 year ago

Physical and chemical properties of ground water of tripoli and agricultural properties

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Answered by Rajeshkumare
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International Journal of Science and Research (IJSR)

ISSN

Licensed Under Creative Commons Attribution CC BY

Physico-Chemical Analysis of Ground Water in

Different Sites of Al-khums City, Libya



Department of Chemistry, Faculty of Sciences, Al-mergheb University, Al-Khums, Libya

Abstract: Deep ground water is an important source of water supply throughout the world. The dependency of people on ground water

has increased in the past few decades due to tremendous increase in crop production, population and industrialization. Thus regular

monitoring of deep ground water becomes very essential. The present study was carried out to assess deep tubewell ground water quality

of Al-khums city, situated on Mediterranean Sea coast of Libya. To study various water quality parameters, ground water samples from

four major sites,(0.3-8 kms away from sea shore) of the city were collected in summer season (months of April-May) .All the samples

were analysed for major physico-chemical parameters : temperature, pH, electric conductivity(EC), total dissolved solids (TDS), total

alkalinity(TA), total hardness(TH), Na+, K+, Cl- by using standard analytical methods. Results showed that the water quality status was

found to vary place to place. The results were analysed and compared with “Libyan Standard No. 82 for Drinking Water” and “WHO

Water Quality Guidelines”. The results revealed that the ground water was not suitable for drinking as well as domestic purposes due to

significant variation of most of the physico-chemicals data from the standard permissible limit which was maximum in water samples

collected from nearby coastal areas. It is concluded from this study that the ground water of the area needs a substantial degree of

purification treatment before using for drinking and domestic purposes.

Keywords: Al-khums city (Libya), Ground water, Water quality, Hydrochemistry, Physico-chemical parameters.

1. Introduction

Groundwater is an important water resource in both the

urban and rural areas of Libya for domestic as well as for

agriculture purposes. Protection of groundwater is a major

environmental issue for the sake of maintaining the human

health and health of the ecosystems Water is the dominant

environment of these ecosystems and has attracted a great

deal of interest for maintaining the water quality . There is

an extensive literature which stresses deterioration of water

[1-4]. The intrusion of salty seawater into wells is a ground

water pollution problem in many coastal cities and towns.

Apart from intrusion of sea water into ground water ,the

addition of various kinds of pollutants and nutrients through

the agency sewage, industrial effluents, agricultural run off

etc. in to the water bodies brings about a series of changes in

the physicochemical and characteristics of water, which

have been the subject of several investigations [5-9]. A vast

population in the coastal area [10] utilizes a shallow and

deep ground water for drinking, agriculture and other

purposes. Regular monitoring of the quality of ground water

should be undertaken, temporarily and spatially to identify

the sources of toxic contaminants and other inhibitory

compounds that affect the quality of water [11]. Therefore,

the present investigation was undertaken in view to monitor

the quality of ground water by assessing of physico-

chemical properties of groundwater near coastal areas of Al-

khoms city in different sites.

2. Methodology

2.1 Study Area

Al-khums city and rural-areas nearby Al-khums city situated

on the Mediterranean coast of Libya (see Fig.1 & Table1).

Figure 1 : Map of Libya showing Al-khums city

2.2 Sampling

Groundwater samples were collected from four active wells

sites 0.3 to 8 km away from Mediterranean Sea coast in

summer season in the months of April- May, 2013(Table-1).

Samples were drawn with the aid of locally made plastic

drawer into pre-cleaned bottles. Samples were analyzed

immediately for parameters, which need to be determined

instantly and rest of samples were refrigerated at 40o C for

the remaining analysis.

2.3 Hydrochemistry

The collected samples were analysed for major physical and

chemical water quality parameters like pH , Electrical

Conductivity (EC), Total Dissolved Solids (TDS), Total

Alkalinity (TA), Total Hardness (TH), Chloride (Cl-),

Sodium (Na+) and Potassium (K+) were carried out referring

the ‘standard methods. The pH was determined by using pH

meter with combined electrode (Model – Hanna, sensitivity

0.01), EC was measured by using conductivity mete

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