Combinatorial membrane-based systems and methods for dewatering and concentrating applications
OwnerJigar JANIinventor
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Abstract
This invention relates to various membrane-based processes and their combinations, such as Forward Osmosis (FO), Reverse 5 Osmosis (RO), Nanofiltration (NF), Ultrafiltration (UF), Membrane Bioreactor (MBR), Osmotic Distillation (OD) and Membrane Distillation (MD), for various application of dilution, concentration, dewatering, separation, purification, fractionation or extraction applications of different solvents including 10 various sources of water, wastewater, active pharmaceutical ingredients (APIs), food and beverage sources, dairy products etc. It is also applicable to all the industrial and domestic applications that involves recovering or water reclamation from inlet sources.
Claims8
A Hybrid Membrane-based processes for dewatering, concentration, solvent separation, extraction, purification or filtration applications of different liquid feed sources consists with single or multistage forward osmosis with any combination of single or multistage reverse osmosis (RO), nanofiltration (NF), membrane distillation (MD) in series or parallel configuration for draw solution regeneration and product water recovery;
- Wherein product of FO is fed to single or multistage high pressure direct pass NF unit;
- Wherein product of FO is fed to single or multistage high pressure direct pass brine water RO (BWRO) unit;
- Wherein product of FO is fed to single or multistage high pressure direct pass sea water RO (SWRO) unit;
- Wherein product of FO is fed to single or multistage NF followed by multistage high pressure BWRO or SWRO combinatorial units;
- Wherein product of FO is fed to single or multistage high pressure BWRO and SWRO combinatorial unit;
- Wherein reject or concentrate of single stage FO unit is fed to subsequent single or multistage FO unit with subsequent single or multistage high pressure direct pass NF or BWRO or SWRO units in a combinatorial units;
- Wherein feed to FO is subjected to prior pre-treatment stages of Membrane Bioreactor (MBR), pressure sand filters (PSF), activated carbon (AC) adsorption, micron cartridge filters, ultrafiltration (UF) units
Dependencies are inferred from the claim text.