Title:
SYSTEM AND METHOD FOR OPERATION OF REVERSE OSMOSIS UNITS
Document Type and Number:
WIPO Patent Application WO/2012/069892
Kind Code:
A3
Abstract:
In one aspect, the invention provides a RO system (20) comprising an energy recovery device (ERD) (34). The system comprises a water intake pump (22) to provide a feed water; a pre- treatment section (24) to pre- treat the feed water to provide a pre- treated water; a membrane section (26); an optimizer module (42) to estimate a value for at least one operating variable associated with at least one decision variable, wherein the decision variable is associated with at least one objective constraint; and a control module (48) for operating the RO unit at the estimated value of the at least one operating variable. The RO unit is characterized by a total energy consumed, wherein the energy recovered by ERD impacts the total energy consumed, and the at least one decision variable is selected from a group consisting of flow rate at high pressure pump (28); pressure at high pressure pump outlet; flow rate at re - circulation pump (40); pressure of low pressure brine reject stream; or combinations thereof.
Inventors:
SUBBIAH SENTHILMURUGAN (IN)
MEKAPATI SRINIVAS (IN)
MEKAPATI SRINIVAS (IN)
Application Number:
PCT/IB2011/001309
Publication Date:
September 07, 2012
Filing Date:
June 10, 2011
Export Citation:
Assignee:
ABB RESEARCH LTD (CH)
SUBBIAH SENTHILMURUGAN (IN)
MEKAPATI SRINIVAS (IN)
SUBBIAH SENTHILMURUGAN (IN)
MEKAPATI SRINIVAS (IN)
International Classes:
B01D61/06; B01D61/12; C02F1/44
Domestic Patent References:
| WO2010010243A1 | 2010-01-28 | |||
| WO2010109265A1 | 2010-09-30 |
Foreign References:
| EP2368624A1 | 2011-09-28 | |||
| US6556930B1 | 2003-04-29 |
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