Document Details
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Document Type |
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Article In Conference |
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Document Title |
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Environmental Assessment of Sewage Water Effluent Discharged into Wadi Uranah, Makkah, Saudi Arabia تقييم المخاطر البيئية لتفريغ مياه الصرف الصحي بوادي عرنة بمكة المكرمة |
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Subject |
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earth sciences, hydrogeology and environmental sciences |
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Document Language |
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Arabic |
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Abstract |
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The environmental impact sewagewater effluent discharged into the
lower part of Wadi Uranah, Makkah AI-Mukkaramah area on soil and
underground water was evaluated. Water samples from the stream and the
adjacent wells in addition to samples from the wadi and the stream were
collected. Chemical analysis and bacterial examinations for stream wastewater,
contaminated wells water, stream polluted soil and wadi unpolluted soil were
performed. Physical properties for soil samples were also determined. Plant
samples along the stream were also collected. Classified and analyzed. The
distribution and infiltration of the wadi soil and underground water were
assessed using the geophysical techniques such as electric resistivity and
magnetic methods.
Elctric resistivity scanning by intensive measurements along vertical
sections revealed that the soil around and beneath the channel is fully saturated
with wasterwater. The magnetic survey along profiles at the same sites
indicates the presence of different sets of faults, fracture zones and dikes. These
features affect the compactness of the soil that increased the pollution due to
spreading wastewater in depth. The underground water is invaded by the
wastewater through faults and fractures. The micro-magnetic survey show that
heavy magnetic metals precipitated from the wastewater enrich the soil around
the channel.
The results of chemical analyses revealed that, the values of most of the
tested elements are higher in wastewater than in well water. It was also found
that, the BOD, COD, NO} and the heavy metals such as Zn, Mn, Cu, Ni, Pb, Cr
and Cd, in the tested wastewater; are higher than the permissible staI1;dard
limits, in addition to the presence of huge quantities of infectious bacteria.
Sewagewater was found more contaminated than the well water.
The study indicates that, The sewagewater and the well water, in their
present condition, are not suitable and unhealthy for human consumption or
domestic and irrigation purpses . This situation is due to the presence of high
concentration of organic mateuials, salts, heavy metals and bacteria. The study
results also indiate that the treated wastewater in the stream is unfit for direct
discharge and reuse. The farmers should be prevented from using wastewater
either directly or from the contaminated wells. |
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Conference Name |
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the second annual meeting for scientific research |
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Duration |
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From : 27 محرم AH - To : 28 محرم AH
From : 30 مارس AD - To : 31 مارس AD |
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Publishing Year |
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1424 AH
2003 AD |
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Number Of Pages |
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7 |
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Article Type |
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Article |
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Added Date |
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Wednesday, January 14, 2009 |
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Researchers
| عباس عيفان الحارثي | AI-Harthi, N/A N/A | Investigator | | |
| عبد الرحمن سعيد آل حجر | AI-Hajar, N/A N/A | Investigator | | |
| أحمد جودة حسين | Hussain, N/A N/A | Researcher | | |
| محمد قربان قشاري | Goshary, N/A N/A | Researcher | | |
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