Abstract:
The retrofit technology utilizes pressurized brine of convention RO to feed a Closed Circuit Desalination (CCD) unit; wherein, further desalination takes place to a desired recovery level. The application exemplified in FIG. 4 is of a retrofit unit comprising a Booster Pump (BP2) for raising pressure of inlet feed; a Circulation Pump (CP) for creating cross flow over membranes (E) in the pressure vessel (M), thereby enable efficient RO desalination; an Actuated Valve (AV) in line with a partially open Manual Valve (MV) to enable periodic replacement of high salinity concentrates with fresh feed without stopping desalination; No Return (NR) valve means to control the direction of flow in the system; and monitoring means such as of electric conductivity (CM) and flow (FM). Periodic replacement of high salinity concentrates by fresh feed initiated at desired high system electric conductivity and terminated at a desired low system electric conductivity, while desalination continued.
Abstract:
A modular unit apparatus for continuous separation of suspended particles from feed solutions or fluids by a consecutive sequential process in closed circuit that comprises, a closed circuit system comprising cross flow membrane filter modules having their respective inlets and outlets connected in parallel with each said module comprising a cross flow membrane filter element within housing, a circulation system enabling recycling of the feed solution or fluid through the membrane, a conducting line system for supply of said fresh feed to the closed circuit, a conducting line system for permeate collection from the membrane modules, a conducting line system for removing concentrated suspended particles solutions or fluids from the closed circuit, two valve systems for enabling connection or disconnection of said fresh feed supply line to the closed circuit, and for enabling periodic discharge suspended solution from the closed circuit without stopping filtration, and a monitoring and control systems.
Abstract:
An apparatus for consecutive sequential closed-circuit desalination of a salt water solution by reverse osmosis having at least one circuit and a single container (CN), wherein the circuit includes at least one RO module (M1) connected in parallel.
Abstract:
An apparatus for continuous closed-circuit consecutive sequential desalination of a salt water solution by reverse osmosis that comprises a closed circuit system comprising one or more desalination modules having their respective inlets and outlets connected in parallel by conducing lines, each of desalination modules comprising of one or more membrane elements, a pressurizing device for creating counter pressure to enable reverse osmosis desalination and replacement of released permeate by fresh, a circulation system for recycling the desalinated solution through the desalination modules, a conducting line systems for permeate collection from the desalination modules, a conducting line system for removing brine effluent a valve system to enable periodic discharge of brine from the closed circuit without stopping desalination, and monitoring and control systems to enable continuous closed circuit desalination of desired recovery proceed in consecutive sequential steps under variable or constant pressure conditions.
Abstract:
Pressurized hydraulic flow created in wind farms with wind driven pumps (wind-pumps) used for rated electric power production by means of hydraulic motors, or turbines, of constant speed and variable torque which actuate alternately and/or simultaneously rated electric generators as function of wind power availability. Use of positive displacement pumps driven by rotors of fixed pitch blades for maximum capture of wind power enables the attainment tip-speed-ratio of rotors in the range of high power coefficient by means of the pressurized hydraulic flow of the wind farms. Another application of wind farms with wind driven pumps is for the creation of variable hydraulic flow of fixed pressure as function wind power availability which may be used for water elevation as well as for the desalination of salt water solutions by reverse osmosis.
Abstract:
A method and apparatus for clean energy generation by means of Pressure Retarded Osmosis (PRO) in closed circuit by a batch process or by a consecutive sequential process comprises two sections; one of a disengaged Side Conduit (SC) undergoing replacement of High Salinity Diluted Concentrates (HSDC) by fresh High Salinity Feed (HSF); and the other of a close circuit system with 3 modules connected in parallel wherein Low salinity feed (LSF) is continuously supplied and whereas part of the HSDC is being recycled through said modules and the other part used for power generation by means of a fixed speed turbine (T) and 3 rated generators (G1, G2 and G3) which are actuated simultaneously or separately as function the power availability during the PRO process. Periodic engagement of said SC with HSF and the closed circuit enable replacement of pressurized HSDC by fresh HSF without stopping the power generation process.
Abstract:
A method for continuous closed-circuit consecutive sequential desalination of a salt water solution by reverse osmosis without using containers. The closed circuit includes one desalination module or more than one desalination modules connected in parallel. The method provides for desalination to proceed in concentrate recycling mode with brief intervals of concentrate discharge mode, in which pressurized concentrate in the closed circuit is replaced by pressurized fresh feed of salt water solution without stopping desalination.
Abstract:
An apparatus for continuous closed-circuit consecutive sequential desalination of a salt water solution by reverse osmosis that comprises a closed circuit system comprising one or more desalination modules having their respective inlets and outlets connected in parallel by conducing lines, each of desalination modules comprising of one or more membrane elements, a pressurizing device for creating counter pressure to enable reverse osmosis desalination and replacement of released permeate by fresh, a circulation system for recycling the desalinated solution through the desalination modules, a conducting line systems for permeate collection from the desalination modules, a conducting line system for removing brine effluent a valve system to enable periodic discharge of brine from the closed circuit without stopping desalination, and monitoring and control systems to enable continuous closed circuit desalination of desired recovery proceed in consecutive sequential steps under variable or constant pressure conditions.
Abstract:
An apparatus for consecutive sequential closed-circuit desalination of a salt water solution by reverse osmosis having at least one circuit and a single container (CN), wherein the circuit includes at least one RO module (M1) connected in parallel.