Zobrazeno 1 - 9
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pro vyhledávání: '"Samir El-Manharawy"'
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 277:407-413
The dehydration model provided a suitable chemical tool for prediction of inorganic fouling flux on the RO-membrane. Several important outputs had obtained from these research series that carried out by the present authors during the last five years.
Publikováno v:
Desalination. 227:274-285
The emphasis on increased reuse of drainage water for irrigation is essential as Egypt expands its agricultural base to meet the food requirements for rapidly population growth rate. The Government of Egypt implemented El-Salaam Canal project to reus
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 165:43-69
The statistical treatment of more than 1500 water analyses indicated that the natural water during its hydrologic cycle can dissolve much higher amounts of minerals than those found in seawater and able to keep it in solution under normal physiochemi
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 156:163-180
Natural low-salinity waters (i.e., 500 mMol/kg Cl). These four water classes are divided into 14 water types (measured in mMol/kg chloride ions): Type 01: very low fresh, 80. The common chemical characteristic of the major ion combination of each wat
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 153:109-120
Inorganic fouling is a major challenge in seawater RO desalination due to its relatively high SOJHCO, molar ratios. In most of the recorded cases, if not all, calcium sulfate scale is dominating (>90% wt/wt) other scale types such as CaCO,, MgSO,? Mg
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 153:335-347
Tackling water shortage issues with desalting of seawater and salty water is common in the desert nations of the Middle East and the Mediterranean. The fast growing development in Egypt has required big movements of investments and people from the Ni
Autor:
Samir El-Manharawy, Azza Hafez
Publikováno v:
Desalination. 139:97-113
Water type is the cornerstone in reverse osmosis system designing. However, the systematic differentiation and identification of different natural waters are almost missing. In the RO industry all natural waters are usually grouped under two types: b
Autor:
Azza Hafez, Samir El-Manharawy
Publikováno v:
Desalination. 136:243-254
Scaling is a major problem facing salt separation from water by reverse osmosis (RO) systems. The sophisticated saturation indices such as LSI (1936), RSI (1944), and S&DSI (1952), are widely used for the prediction of scaling potential in RO systems
Autor:
Samir El-Manharawy, Azza Hafez
Publikováno v:
Desalination. 131:173-188
Reverse osmosis is widely used in Egypt for the production of drinking water from brackish and sea water. The heart of the RO system is the membrane that is capable of isolating dissolved salts from water through its wall under specific pressure. Sim