1228results about How to "Reduce turbidity" patented technology

The present application relates to methods of treating IgE-mediated disorders comprising the administration of highly concentrated anti-IgE antibody formulations with reduced viscosity that are stable, relatively isotonic and are of low turbidity. The formulations are particularly suitable for subcutaneous administration.

The present application relates to highly concentrated antibody and protein formulations with reduced viscosity that are stable, relatively isotonic and are of low turbidity. The formulations are particularly suitable for subcutaneous administration. The application further describes articles of manufacture containing such formulations and method for using them to treat disorders treatable by the formulated antibody or protein.

The present invention is directed to a biocidal water treatment composition, water treatment apparatus, and method of treating water to reduce levels of pathogens. The composition contains sources of copper, zinc, and silver metal ions within a crosslinked polymer matrix. Examples of these ion sources include copper sulfate, zinc sulfate, and silver nitrate. An example of the crosslinked polymer matrix is crosslinked chitosan, which also serves to clarify the water and release the metal ions over time. The product is easy to manufacture, and allows the use of decreased halogen sanitizer, as well as decreased copper ion, thereby decreasing the likelihood of staining. The product simultaneously provides good bactericidal and algaecidal properties, despite low levels of copper ion and low chlorine levels.

The invention provides a method for preparing high base number (TBN400) synthetic calcium alkyl-benzene sulfonate. The method comprises the following steps of: adopting a mixed acid of long-chain linear alkyl-benzene sulfonic acid and high-boiling heavy alkyl-benzene sulfonic acid, calcium oxide and/or calcium hydroxide, low-carbon alcohol, alkaline-earth metal halide or nitrate, and a mixture of alkaline-earth metal alkylphenol or alkaline-earth metal alkylphenate and polyisobutylene succinic anhydride for a neutralization reaction in the presence of a solvent and cutback oil at a temperature of between 40 and 80 DEG C; then, passing through carbon dioxide to a product of the neutralization reaction at a temperature of between 40 and 60 DEG C for a carbonation reaction; and producing high base synthetic alkyl-benzene sulfonate with a total base number (TBN) of 400mgKOH/g by adopting a process of a one-step method. The product is divided into high-base number (TBN400) synthetic alkyl-benzene sulfonate containing chlorine and high-base number (TBN400) synthetic alkyl-benzene sulfonate without the chlorine. The product produced by adopting the method with low viscosity, small turbidity, easy filtration, light color and no skin formation has the advantages of excellent high-temperature detergency, excellent anti-foaming property and excellent heat storage stability.

A method of making a silicone hydrogel biomedical device involves forming a monomer mixture comprising a silicone-containing monomer and a hydrophilic monomer, and heating the monomer mixture to reduce cloudiness of the mixture.

The invention provides antimicrobial compositions comprising one or more acid and one or more organic diol. In one embodiment, the invention's compositions have an acidic pH. The compositions may optionally further contain one or more oxidizing agent (including stabilized oxidizing agent and/or unstabilized oxidizing agent), and/or one or more surfactant. In particular embodiments, the acid lacks one or both of —NH group and —NH₂ group. The invention's compositions are useful in all stages of handling agricultural products, in hospitals, and in commercial and household applications.

The invention discloses a seawater desalinating technique through film integrated method, which comprises the following steps: passing the seawater through self-rinsing filter; predisposing the rinsed seaward into hyperfilter device; boosting the seawater through the boost pump; removing possible micro-particle in the inlet water of counter-osmosis system of the seawater through seawater safety filter; elevating the inlet pressure of the counter-osmosis system of the seawater; desalinating through counter-osmosis system of the seawater; removing micro-particle in the inlet water of counter-osmosis system of the fresh water through fresh water safety filter; elevating the inlet pressure of the counter-osmosis system of the fresh water; desalinating through counter-osmosis system of the fresh water. The invention reduces the adding quantity of the chemicals and rinsing times of reverse osmosis membrane effectively, which improves automatic degree with stable property and small equipment occupying area.

The invention relates to a system for preparing potassium sulfate from high-salt-content industrial wastewater and belongs to the field of water treatment. The high-salt-content industrial wastewater is pretreated through a regulating pool, a pipeline mixer, a high-density precipitate pool, a V-type filter pool, ion exchange resin and an ultrafiltration membrane system and then concentrated through a first section reverse osmosis membrane system and a second section reverse osmosis membrane system and then enters a nanofiltration membrane system for salt separation, nanofiltration produced water and thick water enter a plate-pipe type high-pressure flat sheet membrane system II and a plate-pipe type high-pressure flat sheet membrane system I respectively to be concentrated again, the concentrated thick water enters a freezing crystallization system for crystallization, crystals enter a potassium sulfate preparing system to be converted, freezing mother liquor and the concentrated nanofiltration produced water enter an advanced oxidizing system for oxidation and then enter an evaporative crystallization system for crystallization, and produced sodium sulfate crystal salt enters a potassium sulfate preparing system for conversion. The system has the advantages that the scale of the nanofiltration system is reduced, and investment cost is reduced; salt separation is thorough, and operation cost is low; the purity of the crystallization salt is high; mirabilite and sodium sulfateare converted into potassium sulfate, and the economic value is improved.

A washing system for use in cleaning or washing a soiled substrate or substrates, the system comprising: a. a washing zone for contacting and washing the soiled substrate with wash liquor; b. a feed supply for providing hot or cold feed water to the washing zone; c. a wash liquor cleanup and recycle zone in fluid communication with the washing zone d. an effluent storage and/or discharge zone; and optionally one or more of e. a product dispensing zone; f. means for sonically or ultrasonically treating the soiled substrate in the washing zone or in a washing pre-treatment zone; g. an electrolysis zone for electrolysing the feed water or wash liquor; h. a wash liquor disinfection zone; and i. a feed water softening zone;

The wash liquor cleanup and recycle zone preferably comprises an ultrafiltration or microfiltration device having a cut-off in the range from about 1000 Daltons to about 1 μm, preferably from about 0.05 μm to about 0.5 μm, a lumen size of from about 1 to about 10 mm, preferably from about 2 to about 6 mm, more preferably from about 3 to about 5 mm, and a clean water flux of at least about 1000 L/m².h.100 kp (RO water at 25° C.), preferably at least about 10,000 L/m².h.100 kp.

The present invention relates to method for producing and purifying RNA comprising the steps of providing DNA encoding the RNA; transcription of the DNA into RNA; and conditioning and/or purifying of the solution comprising transcribed RNA by one or more steps of tangential flow filtration (TFF).

Ready-to-drink color and turbidity stable beverage compositions are provided. The beverage compositions contain from about 100 to about 2,700 milligrams per liter by total weight of the beverage composition of a tea material selected from the group consisting of tea solids, tea polyphenols, tea flavonoids, tea catechins and combinations thereof. The composition contains water, a total of no more than from about 0 to 100 milligrams per liter divalent cations and a turbidity of less than about 50 NTU and even less than 20 NTU for compositions containing 900 mg/l of tea solids. Preferably, the tea material contains less than about 450 milligrams divalent cations per 100 grams of the tea material. The beverage compositions of the invention are color and turbidity stable when packaged and stored under normal conditions.

The invention discloses an electro-absorptive desalination water purifier, which comprises a high-precision pretreatment filter element, an electro-absorptive filter element, an electrical control circuit board, and a water quality probe capable of detecting the content of salinity in water. After suspended substances and particulate matters in raw water are removed through the high-precision pretreatment filter element, then the salinity in the water is removed through the electro-absorptive filter element, the water quality probe is arranged in a water outlet pipeline of the electro-absorptive filter element; the water outlet pipeline is divided into two paths behind the water quality probe; and one path is a fresh water pipeline communicated with a water purification tank, while the other path is a sewage pipeline which is communicated with a sewage tank or is emptied. The water purifier has the advantages that the water purifier can realize the automatic control to the water quality of water outlet by controlling the electric conductivity of the water outlet; hardness components are contained in the salinity, so the desalination water purifier is also a water softener and is particularly suitable for hard water areas in the north of China; after the electro-absorptive filter element has saturated absorption, the electro-absorptive filter element can obtain the regeneration through the desorption, has small discharge capacity during the regeneration, and saves water resources; and concentrated water drained during the regeneration does not contain acid and alkali liquid, and does not pollute the environment.

The invention discloses modified polyurethane suspended filler which comprises, by weight, 10 parts to 80 parts of polyhydroxyalkanoate, 10 parts to 80 parts of activated carbon, 60 parts to 80 parts of polyurethane, 1 part to 10 parts of water-soluble polyurethane solutions, 0 part to 10 parts of bioactivator, 0 part to 1 part of inorganic metal salt, 0 part to 20 parts of organic high-molecular polymer and 0 part to 10 parts of inorganic flocculate. A preparation method of the modified polyurethane suspended filler includes the steps of taking the 10 parts to 80 parts of polyhydroxyalkanoate, the 10 parts to 80 parts of activated carbon, the 0 part to 10 parts of bioactivator, the 0 part to 1 part of inorganic metal salt, the 0 part to 20 parts of organic high-molecular polymer and the 0 part to 10 parts of inorganic flocculate, dissolving the mixture in the 1 part to 10 parts of water-soluble polyurethane solutions, soaking the 60 parts to 80 parts of polyurethane in the solution to obtain the loaded polyurethane suspended filler, and conducting secondary drying after primary drying is conducted to obtain the modified polyurethane suspended filler. The modified polyurethane suspended filler has the advantages of being high in porosity and large in specific area.