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Universität Lüneburg (2007)

Räumliche und zeitliche Konsolidierung in der Abwasser-Qualitätsüberwachung : eine Fallstudie aus dem El-Salam Kanal-Projekt in Ägypten

Abu-Salama, Mohamed Shaban Mohamed

Titre : Räumliche und zeitliche Konsolidierung in der Abwasser-Qualitätsüberwachung : eine Fallstudie aus dem El-Salam Kanal-Projekt in Ägypten

Spatial and temporal consolidation of drainage water quality monitoring networks : a case study from the El-Salam canal project un Egypt

Auteur : Abu-Salama, Mohamed Shaban Mohamed

Université de soutenance : Universität Lüneburg

Grade Doctorate in Natural Sciences (Dr.rer. nat. ) 2007

Résumé
The El-Salam Canal Project aims at increasing the Egyptian agricultural productivity through agricultural and stock development by irrigating about 263,500 ha gross of new lands In order to stretch the limited water supply to cover these new reclaimed areas, fresh River Nile water is augmented with agriculture drainage water from Hadus and Lower Serw drains, which receive almost all kinds of wastes. The overall objective of this research is to introduce a rationalization technique for the drainage water quality-monitoring network for Hadus drain as a main feeder of El-Salam Canal Project. Later on, this technique may be applied for other parts in the National Water Quality Monitoring Program in Egypt. The rationalization process started firstly with assessing and reformulating the current objectives of the network. Then, the monitoring locations were identified using integrated logical and statistical approaches. Finally, a sampling frequency regime was recommended to facilitate proper and integrated information management. As a result, the monitoring network was divided into three priority levels (Layers I, II and III) as following : • Layer I : highest priority level and includes eight monitoring locations • Layer II : second priority level and includes three locations • Layer III : lowest priority level and includes five locations These results were validated using three integrated statistical methods. The validation results ensure that excluding the monitoring locations in layer III does not significantly affect the information produced by the monitoring network. Based on the evaluation of sampling frequencies, it is recommended to have 6 (instead of 12) samples per year for 18 (out of 36 examined) parameters (COD, TSS, TVS, N-NO3, Pb, Ca, Na, Cl, Visib, BOD, Cu, Fe, Mn, pH, TDS, K, SO4_m and DO). The measured parameter SO4_m will automatically replace the SO4 (calculated). SAR and Adj. SAR also can be calculated from the other parameters. For the other fifteen parameters (Mg, EC, Br, Ni, Sal, Cd, TN, TP, Temp, Fecal, Coli and N-NH4, Zn, P and Turb), it is recommended to continue with 12 samples/year. These recommendations may ensure significant reduction in the total cost of the monitoring network. This facilitates a fiscal resource, which is a key prerequisite in developing a successful program. The rescued budget can be redirected to achieve better performance in terms of improving the current resources. In addition, a frame of stakeholders-participation mechanism was proposed to ensure better water quality management in the project area.

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