11 results about "Ceramic membrane" patented technology

The invention relates to a method for preparing composite yeast nutritious drinks, and belongs to the technical field of nutritious drinks. According to the technical scheme, the method includes the steps that lyceum barbarum extract is prepared; a yeast extract solution is prepared; syrup feed liquid is prepared; the obtained lyceum barbarum extract and the yeast extract solution are added to the syrup feed liquid, the lyceum barbarum extract, the yeast extract solution and the liquid are evenly mixed, sodium erythorbate is added to the mixed solution, and high pressure homogenization is conducted on the mixed solution; the solution after high pressure homogenization processing is sterilized, filtered and clarified through a ceramic membrane, and filled into vessels, and then the composite yeast nutritious drinks are prepared. The prepared lyceum barbarum and yeast nutritious drinks have quite rich nutrient substances, lyceum barbarum contains a lot of nutrients such as amino acids, lyceum barbarum polysaccharides, inorganic salt, glucose, taurine and betaine, and the nutrients are essential to human body; yeast extract contains 18 kinds of amino acids and polypeptides, multiple B vitamins, nucleic acids and multiple mineral elements. The prepared drinks have the functions of nourishing the kidney and tonifying the liver, benefiting qi and promoting the production of body fluid, improving eyesight and soothing nerves, resisting fatigue and improving human body immunity.

The invention discloses a preparation method of high-purity gynostemma pentaphylla total saponin for veterinary drugs. The preparation method is characterized in that a medicinal gynostemma pentaphylla total saponin medicinal material is used as a raw material, and the high-purity target product, namely the gynostemma pentaphylla total saponin for the veterinary drug, is obtained by high-efficiency extraction and separation on the basis of combination of technologies such as continuous countercurrent supersonic wave extraction, ceramic membrane microfiltration and macroporous resin adsorption separation with a conventional solvent reflux extraction principle. The preparation method has the advantages that the product purity and the product yield are improved, the product quality and the high quality are stabilized, the production cost is reduced, the requirements on the development of the high-purity gynostemma pentaphylla total saponin for the veterinary drugs and highly-processed products of gynostemma pentaphylla total saponin are satisfied, the production process is in line with environmental protection requirements, and the difficulty in the coordination of working procedures such as extraction, solvent recovery, enrichment and purification occurring in the volume production process of the gynostemma pentaphylla total saponin for the veterinary drugs is solved through the continuous improvement of the technology and the adjustment of technological processes and technical parameters.

The invention belongs to the technical field of environmental protection, and particularly relates to a PVC mother liquor recycling treatment device and process. The device comprises a PVC mother liquor pipeline, the PVC mother liquor pipeline is sequentially connected with an advanced oxidation reactor, a buffer sedimentation tank, a ceramic membrane filter, a heat exchanger and a reverse osmosis desalting device, a concentrated water outlet of the reverse osmosis desalting device is connected with the ceramic membrane filter through a backwashing pump, and the ceramic membrane filter and the advanced oxidation reactor are both connected with an ozone generator; the PVC mother liquor directly enters a Fenton + ozone advanced oxidation reactor without cooling, Fenton-ozone advanced oxidation is carried out, then a ceramic membrane filter is adopted for ceramic membrane filtration, after heat exchange, filtered water is directly subjected to reverse osmosis desalting treatment, produced water is recycled, and concentrated water is used for backwashing the ceramic membrane filter. According to the method, high-quality recovery of the PVC mother liquor can be realized, the COD discharge amount and the water taking amount of a factory are reduced to a great extent, and the benefits of PVC production enterprises can be effectively increased.

The invention discloses a dye wastewater discharge purification device which comprises a ceramic membrane filter and a treatment box, the top of the ceramic membrane filter is communicated with a liquid inlet pipe, the bottom of one side, close to the treatment box, of the ceramic membrane filter is communicated with a first permeate liquid outlet pipe, and the bottom of the first permeate liquid outlet pipe is communicated with a second permeate liquid outlet pipe; an adsorption layer is arranged in the first treatment cavity, a reverse osmosis membrane is arranged in the second treatment cavity, a central water collecting pipe is arranged in the reverse osmosis membrane, the bottom of the second treatment cavity is communicated with a pure water outlet, and one end of the bottom of the second treatment cavity is communicated with a concentrated water outlet. Through the arrangement of the ceramic membrane filter, the treatment box, the adsorption layer, the draw-off pump and the reverse osmosis membrane, permeate obtained after monochromatic dye wastewater membrane concentration treatment is subjected to oil and color removal treatment, then the permeate is introduced into the reverse osmosis membrane to obtain pure water and concentrated water, the produced pure water can be directly used for a dye purification system, and the production cost is reduced. And after the concentrated water enters a sewage system, the treatment difficulty is very low.

The invention discloses a biogas slurry purifying method through a membrane method. A centrifugal separation system, a ceramic membrane filtration system, a nanofiltration membrane desalting system and a reverse osmosis concentration system are involved. The method comprises the following steps of centrifugal separation, wherein original biogas slurry is conveyed to a centrifugal separator from afirst-level original biogas slurry storage tank through a first material conveying pump for solid and liquid separation, separated filter residues can be used as a raw material of feed, and a separated filtrate flows into a second-level original biogas slurry storage tank of the ceramic membrane filtration system; ceramic membrane filtration, wherein the filtrate in the second-level original biogas slurry storage tank is pumped into a tubular ceramic membrane unit through a circulating pump for separation, and remaining suspended solids, colloids, microorganisms, macromolecular organic matterand the like in the biogas slurry are removed. By arranging the centrifugal separation system, the ceramic membrane filtration system, the nanofiltration membrane desalting system and the reverse osmosis concentration system, the problems are solved that a traditional biogas slurry purifying method is single in separation filtration measure and not ideal in purifying effect, and valuable components in the biogas slurry cannot be easily separated out completely.

The invention provides ceramic membrane sewage treatment equipment and method based on domestication of active microorganisms. The equipment comprises a reaction tank which comprises a water inlet anda water outlet; a first membrane assembly, of which a ceramic membrane is communicated with a gas storage tank through a gas pipeline and is filled with microorganism culture gas in the gas storage tank, wherein a biological membrane layer is formed in an activated sludge environment, and the surface of the ceramic membrane of the first membrane assembly is covered with the biological membrane layer; and a second membrane assembly which is located at the downstream of the first membrane assembly, and the second membrane assembly is communicated with the water outlet through a water outlet pipeline. According to the invention, the problem of uncontrollable microbial population in the existing MBR technology is solved, and the problems of low water production rate and frequent replacement of the membrane assembly caused by easy pollution of suspended activated sludge to the membrane assembly in the existing MBR can be solved as the immobilized microorganisms are adopted to treat wastewater and have low sludge yield and good settling performance.

The invention discloses a metal-ceramic composite fibrous membrane tube and a preparation method thereof. The preparation method is characterized by comprising the following steps: mixing 0.2 to 1 mass percent of polyvinylpyrrolidone, 0.7 to 10 mass percent of polyether sulfone, 7 to 50 mass percent of N-methyl-1-pyrrolidone, 50 to 90 mass percent of metal with a ceramic material in a mass ratio of 3-10:1, and performing ball milling to prepare slurry; pressurizing to make the slurry extruded from a interlayer clearance of a spinning nozzle and water and/or ethanol extruded from an inner pipesimultaneously, and making the slurry enter the water and/or the ethanol to obtain a hollow tubular blank of the metal-ceramic composite fibrous membrane tube; and sintering the blank at a temperature of between 800 and 1,500 DEG C at a reducing atmosphere or in a vacuum degree of between 1*10<-4> and 1*10<1>Pa to obtain the metal-ceramic composite fibrous membrane tube. The metal-ceramic composite fibrous membrane tube solves the problem that the traditional ceramic membrane tube is difficult to assemble, cannot adapt to high temperature and harsh conditions and is difficult to form and sinter, and heat exchange performance and gas/liquid transmission rate can be improved.