Title:
CONTROL OF IMMERSED MEMBRANE SYSTEM CONSIDERING ENERGY COST FLUCTUATIONS
Document Type and Number:
WIPO Patent Application WO/2013/025389
Kind Code:
A3
Abstract:
An immersed membrane filtration system is operated in view of an electricity pricing programs in which the price of electricity varies over time. Examples of such programs include time of use pricing, critical peak pricing and critical peak rebate programs. Alternatively, the filtration system may be operated, for example as part of a smart grid, in view of requests or demands by an electrical utility for time limited reductions in energy use. During a high energy cost period of time, one or more membrane units are shut down. Preferably, aeration of the still operating membrane units is not increased. The flux of the still operating trains may be increased towards a pre-determined maximum permitted flux, or towards a maximum flux that is calculated in view of operational parameters such as water temperature or viscosity. Optionally, during a low energy cost period of time, one or more additional membrane units may be turned on. Optionally, the transfer of water from an equalization tank may also be controlled in view of the energy pricing program.
More Like This:
| WO/2021/041514 | METHODS OF FABRICATING POLYMER FILMS AND MEMBRANES |
| JP5537528 | Freshwater purification equipment |
Inventors:
THEODOULOU MICHAEL DAVID (CA)
Application Number:
PCT/US2012/049742
Publication Date:
May 10, 2013
Filing Date:
August 06, 2012
Export Citation:
Assignee:
GEN ELECTRIC (US)
THEODOULOU MICHAEL DAVID (CA)
THEODOULOU MICHAEL DAVID (CA)
International Classes:
B01D61/00; B01D61/22; C02F1/44; C02F3/06
Foreign References:
| US20040140908A1 | 2004-07-22 | |||
| US20090125150A1 | 2009-05-14 | |||
| US20110086250A1 | 2011-04-14 | |||
| KR20090085760A | 2009-08-10 | |||
| KR20090062503A | 2009-06-17 | |||
| JP2001137668A | 2001-05-22 |
Attorney, Agent or Firm:
WINTER, Catherine, J. et al. (Global Patent Operation2 Corporate Drive, Suite 64, Shelton CT, US)
Download PDF: