000 02377cam a2200337 a 4500
003 EG-GiCUC
005 20250223031338.0
008 151119s2015 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.13.05.M.Sc.2015.Ne.A
100 0 _aNermeen Ahmed Abdelbaery Elmeleegae
245 1 3 _aAn assessment of pretreatment performance and process design of reverse osmosis plant :
_b cases study /
_cNermeen Ahmed Abdelbaery Elmeleegae ; Supervised Ehab M. Rashed , Khaled Z. Abdalla
246 1 5 _aتقييم كفاءة نظم المعالجة الأولية و التصميم لمحطات التحلية بتقنية الأسموزية العكسية :
_b دراسة حالة
260 _aCairo :
_bNermeen Ahmed Abdelbaery Elmeleegae ,
_c2015
300 _a177 P. :
_bcharts , facsimiles ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Civil Engineering
520 _aMembrane fouling is the main operating problem of reverse osmosis process, the research investigate the influences of fouling materials on the performance of three plant fed by (fresh municipal water, seawater, and ground water) assess the pretreatment processes, and normalizes and optimizes reverse osmosis unit design, the research conclude that, in first plant, aluminum-based fouling increases the permeate salinity 3 times, decrease flux 25% in 3 months in municipal water plant, replacing conventional pretreatment by ultrafiltration membrane pretreatment restore the plant performance. In second plant, colloidal and organic fouling decreases the fouling factor that elevates the applied pressure 15% in seawater plant. In third plant, iron-organic fouling, increase of well salinity and temperature, and improper pretreatment and membrane type causes 7 times replacement of plant membranes and prolong shutdown intervals, by changing these constrains the plant performance is modified
530 _aIssued also as CD
653 4 _aFouling
653 4 _aPretreatment
653 4 _aReverse Osmosis Membrane
700 0 _aEhab Mohamed Rashed ,
_eSupervisor
700 0 _aKhaled Zaher Abdalla,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c53398
_d53398