Reverse osmosis (RO) membrane-based domestic water desalination/purification units have gained wide acceptance even in India. Unfortunately, the recovery of product water from these units varies between 10 and 20% depending on total dissolved solid (TDS) of the feed water. Problem of tap water salinity is increasing, because of ground water depletion. Also, low recovery of product water during desalination is a serious problem, in view of water scarcity. In this manuscript, we are reporting electrodialysis (ED)-RO hybrid process for high recovery of product water from brackish water without compromising on water quality (Indian Patent Application No. 1418/DEL/2010). In hybrid process, ED unit was operated in high TDS region (low system resistance and thus high efficiency), and RO system operated in low TDS region, to reduce salinity load on membrane. (C) 2011 Elsevier B.V. All rights reserved.
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Penn State Harrisburg, Civil & Environm Engn Dept, Sch Sci Engn & Technol, 777 W Harrisburg Pike, Middletown, PA 17057 USAPenn State Harrisburg, Civil & Environm Engn Dept, Sch Sci Engn & Technol, 777 W Harrisburg Pike, Middletown, PA 17057 USA
Moazeni, Faegheh
Khazaei, Javad
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Penn State Harrisburg, Elect Engn Dept, 777 W Harrisburg Pike, Middletown, PA 17057 USA
Architectural Engn Dept, Penn State Univ Pk, State Coll, PA 16801 USAPenn State Harrisburg, Civil & Environm Engn Dept, Sch Sci Engn & Technol, 777 W Harrisburg Pike, Middletown, PA 17057 USA
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King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi ArabiaKing Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia
Generous, Muhammad M.
Qasem, Naef A. A.
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King Fahd Univ Petr & Minerals, Dept Aerosp Engn, Dhahran 31261, Saudi Arabia
King Fahd Univ Petr & Minerals KFUPM, Interdisciplinary Res Ctr Membranes & Water Secur, Dhahran 31261, Saudi ArabiaKing Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia
Qasem, Naef A. A.
Zubair, Syed M.
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King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia
KA CARE Energy Res & Innovat Ctr, Dhahran, Saudi ArabiaKing Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia