A subsea system is configured to inject seawater into a subterranean formation. The system includes a sub-micron filtration module and a plurality of pumps and a plurality of other filtering devices arranged in series.

Provided herein are processes for carrying out a chemical reaction of a substrate in a diluted reaction mixture. The processes include conducting the reaction mixture having reaction product and solvent to a filtration membrane which is permeable to the solvent but impermeable to the reaction product. Solvent which permeates the filtration membrane for dilution of the substrate feed is recycled.

The present invention relates to a method for separating biomass from a solution comprising biomass and at least one oligosaccharide.comprising providing the solution comprising biomass and oligosaccharides.lowering the pH value of the solution below 7 by adding at least one acid to the solution comprising biomass and the at least one oligosaccharide. adding an adsorbing agent to the solution comprising biomass and oligosaccharides. and carrying out first membrane filtration so as to separate the biomass from the solution comprising the at least one oligosaccharide.

The present invention relates to a method for separating biomass from a solution comprising biomass and at least one oligosaccharide.comprising providing the solution comprising biomass and oligosaccharides.lowering the pH value of the solution below 7 by adding at least one acid to the solution comprising biomass and the at least one oligosaccharide. adding an adsorbing agent to the solution comprising biomass and oligosaccharides. and carrying out first membrane filtration so as to separate the biomass from the solution comprising the at least one oligosaccharide.

The present disclosure relates to recycling automotive phosphate rinse water. An apparatus and method is disclosed for treating process water containing phosphate. The apparatus may include a process water line. The process water line may be in fluid communication with a sample process water line. The sample process water line may be in fluid communication with a dilution line. The sample process water line, the dilution line, and a phosphate analyzer may be in fluid communication with a diluted process water line. The apparatus may also include a chemical additive feed line in fluid communication with the process water line downstream from the sample process water line.

The present disclosure relates to recycling automotive phosphate rinse water. An apparatus and method is disclosed for treating process water containing phosphate. The apparatus may include a process water line. The process water line may be in fluid communication with a sample process water line. The sample process water line may be in fluid communication with a dilution line. The sample process water line, the dilution line, and a phosphate analyzer may be in fluid communication with a diluted process water line. The apparatus may also include a chemical additive feed line in fluid communication with the process water line downstream from the sample process water line.

An electrochemical wastewater treatment system comprises a reactor tank, an electrochemical reactor and a separation device which filters the effluent stream from the reactor tank and generates a treated wastewater stream and a reject stream which is at least partially fed to the electrochemical reactor or to the reactor tank to thereby increase the concentration of selected soluble and insoluble compounds within the reactor. A portion of the reject stream or a portion of the wastewater in the reactor tank can be discharged as a blowdown stream. Flow control means are provided for adjusting the volume of the reject stream and of the blowdown stream for controlling the compounds concentration. The concentration of soluble and insoluble compounds in the reactor is therefore decoupled from the concentration of the compounds in the reactor effluent stream to achieve an improved reactor performance and a higher quality effluent.

An electrochemical wastewater treatment system comprises a reactor tank, an electrochemical reactor and a separation device which filters the effluent stream from the reactor tank and generates a treated wastewater stream and a reject stream which is at least partially fed to the electrochemical reactor or to the reactor tank to thereby increase the concentration of selected soluble and insoluble compounds within the reactor. A portion of the reject stream or a portion of the wastewater in the reactor tank can be discharged as a blowdown stream. Flow control means are provided for adjusting the volume of the reject stream and of the blowdown stream for controlling the compounds concentration. The concentration of soluble and insoluble compounds in the reactor is therefore decoupled from the concentration of the compounds in the reactor effluent stream to achieve an improved reactor performance and a higher quality effluent.

Apparatus, methods, systems, etc., for the tangential flow filtration (TFF) of viscous compositions including viscous fluids, solutions, gels, pastes, creams and suspensions with viscosities greater than 10 cP, 20 cP, 50 cP or 100 cP. The methods, etc., provide enhanced mixing of the viscous compositions in their storage vessels by extracting the input composition from different depths in the storage vessels to reduce or eliminate vertical concentration gradients.

A membrane separation pretreatment apparatus including a membrane separation unit and a first underwater plasma discharge unit disposed in front of the membrane separation unit is provided. The membrane separation pretreatment apparatus includes a membrane separation unit configured to remove particulate matter contained in raw water, and a first underwater plasma discharge unit disposed in front of the membrane separation unit and configured to cause a portion of the raw water to be introduced into the membrane separation unit to perform underwater plasma discharging.