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Document Type |
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Article In Journal |
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Document Title |
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Study on Physical characteristics and micro and toxic elements of the treated effluents of some sewage treatment plants in Jeddah دراسة عن الخصائص الفيزيائية والعناصر الصغرى والسامة للتدفقات المعالجة لبعض محطات معالجة الصرف الصحي بجدة |
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Document Language |
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Arabic |
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Abstract |
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Study on Physical characteristics and micro and toxic elements of the treated effluents of some sewage treatment plants in Jeddah
Majid H. Hashim* Mohamed H. Ramadan* Fahd A. EL-Bishi**
* Environmental Sciences Dept., Faculty of Meteorology, Environ., and Arid Land Agriculture, King Abdul Aziz University
** Presidency of Meteorology and Environmental Protection, Jeddah
Publisher: Journal of African Studies, 2007, Vol. (29)
Abstract: The city of Jeddah suffers a significantly population growth over the past few decades. The development of the sewerage network was not in a manner as with the other basic facilities, and as a result ground water level has increased and became contaminated as a result of infiltration of wastewater coming from the septic tanks. There are 9 sewage treatment plants in Jeddah using activated sludge system. A part of the treated effluent is used in irrigating public parks and squares, and the other part is disposed in the sea. The disposal of improperly treated effluent affects both public health and the quality of the water body receiving this effluent. The present research aims to study some physical characteristics and micro and toxic elements of the treated effluent of three sewage treatment plants in Jeddah. The results showed that pH values of the treated effluents of the three plants ranged between 6 and 9, and this range provides protection for freshwater fish and invertebrates at the bottom if this effluent will be dumped in the water bodies. The results of conductivity and total dissolved solids of the current study can be attributed to the pumping of groundwater with high concentration of chlorides into the sewerage network. The results of suspended solids showing that there is deficient in the secondary treatment in the plants. It has been found low concentrations of micro and toxic elements. The study suggested some recommendations including: improving of the efficiency of treatment plants for the production of effluents can be used for irrigation, continuous control and monitoring of the effluent quality and ensure their conformity with the standards, supporting the treatment plants laboratories with developed instruments and trained persons, not delivering to the plants hydraulic and organic overload more than their capacity, and enforcing industrial facilities to pre-treat their industrial wastewater to be in compliance with the standards before discharging into the public sewerage system. |
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ISSN |
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1548-6591 |
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Journal Name |
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Journal of African Studies |
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Volume |
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1 |
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Issue Number |
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29 |
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Publishing Year |
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1428 AH
2007 AD |
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Article Type |
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Article |
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Added Date |
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Monday, August 22, 2011 |
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Researchers
| محمد حسن رمضان | Ramadan, Mohamed Hassan | Researcher | Doctorate | mhmram@hotmail.com |
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