The invention is about a stabilized electromagnetic base liquid, as well as its preparation method and its application in the high-salt wastewater treatment. The raw material components of the electromagnetic base fluid include: 20-30 parts of alkali metal hydroxides(e.g., as sodium hydroxide); 20-30 parts of non-alkali metal (e.g., as silicon or phosphorus); 2-6 parts of ammonia; 31-140 parts of water; after treatment with a direct electrical current the parameters of the stabilized electromagnetic base liquid are: pH value: 12 to 14; oxidation reduction potential value: −1.0 to −1.8 v; with no corrosivity, confirming the presence of stabilized hydrated electrons (e.sub.aq−−). With the stabilized electromagnetic base liquid, the storage problem of the electromagnetic base liquid is solved, and the large-scale application in the industrial field can be realized, thereby achieving a large-scale high-salt wastewater treatment process with low cost, high recovery rate.

A disposable cell enrichment kit includes a crossflow filtration device configured to be disposed along a main loop pathway and to receive a process volume containing a biological sample and utilize crossflow filtration, via a micro-porous membrane, to retain a specific cell population in a retentate from the process volume and to remove a permeate including certain biological components from the process volume. The crossflow filtration device includes a laminated filtration unit that includes the micro-porous membrane, a first mating portion, a second mating portion, and a membrane support. The membrane support includes a first plurality of structural features that define a first plurality of openings, wherein the first plurality of structural features are coupled to the micro-porous membrane and provide support to the micro-porous membrane, and the first plurality of openings allow the permeate to flow through them after crossing the micro-porous membrane.

A chemical liquid purification apparatus includes a tank body, a return tube, a liquid sending pump, a filtration device and a piping. The tank body has a liquid passage port and a circulation port communicated to a storage space inside the tank body. The return tube has one end connected to the circulation port and another end extending to the storage space. The liquid sending pump and the filtration device are located outside the tank body in between the liquid passage port and the circulation port. The piping is connecting the liquid sending pump and the filtration device to the liquid passage port and the circulation port.

The invention relates to a mechanically stable ultrafiltration membrane and to a method for producing such an ultrafiltration membrane.

This disclosure relates to a method which involves the steps of: (a) providing an aqueous solution comprising a protein and a polyalkoxy fatty acyl surfactant of general formula I

##STR00001##

wherein R.sup.1—C(═O) is a fatty acyl group, R.sup.2 is H or a substituted or unsubstituted hydrocarbyl group, X.sup.1 is S, O or NH, X.sup.2 is S, O or NH, n is 0 or an integer of 1-5, R.sup.3 is a polymeric group comprising polymerized units of general formula II and III

##STR00002##

(b) contacting the aqueous solution with a separation membrane, and (c) subjecting the aqueous solution to a diafiltration step and/or to an ultrafiltration step to produce a retentate product which is an aqueous solution comprising the protein, whereby the compound of formula I reduces aggregation of the protein in method steps (a)-(c) and whereby the compound of formula I passes through the separation membrane in step (c).

The present disclosure provides a method of making a chemical mechanical planarization slurry. The method includes contacting a chemical mechanical planarization slurry precursor including a carrier and a plurality of abrasive particles with a semi-permeable fiber membrane. Upon contact, the method further includes separating the chemical mechanical planarization slurry precursor into a concentrate and an effluent. The concentrate includes the chemical mechanical planarization slurry and the effluent includes the carrier and a plurality of particles. The particles of the effluent have a median size that is less than a median size of the abrasive particles of the concentrate. In the method a pressure difference measured between an inlet to which the chemical mechanical planarization slurry precursor is supplied and a first outlet to which the effluent is supplied is in a range of from about 1 psi to about 15 psi.

A process for recovery of lithium ions from a lithium-bearing brine includes contacting the lithium-bearing brine with a lithium ion sieve (where that LIS includes an oxide of titanium or niobium) in a first stirred reactor to form a lithium ion complex with the lithium ion sieve, and decomplexing the lithium ion from the lithium ion sieve in a second stirred reactor to form the lithium ion sieve and an acidic lithium salt eluate.

Methods of producing multiple protein products from blood-based materials including alpha-1-proteinase inhibitor, gamma globulin, albumin, and other proteins are described herein. The inventive methods include steps of fractionation that utilize a combination of salt and organic solvent. Advantageously, the inventive methods are simple and produce alpha-1-proteinase inhibitor, gamma globulin, albumin, and other proteins in high yields. The sequence of process steps can be selected to obtain multiple products from various in-process materials, such as supernatants, pastes, chromatography flow-though, and chromatography washes.

Systems and methods for filtering materials from biologic fluids are discussed. Embodiments may be used to filter cerebrospinal fluid (CSF) from a human or animal subject. In an example, CSF is separated into a permeate and retentate using a tangential flow filter. The retentate is filtered again and then returned to the subject with the permeate. During operation of the system, various parameters may be modified, such as flow rate and waste rate.

Provided herein are materials and methods for the preparation of blood products. In one aspect, provided herein is a composition including platelets or platelet derivatives and an aqueous medium, wherein the aqueous medium has a protein concentration less than 50% of the protein concentration of donor apheresis plasma.