61results about How to "Reduce biofouling" patented technology

The invention discloses a method for preparing a polyaniline modified neutral conductive filter membrane and belongs to the technical field of conductive filter membrane modification and preparation in the field of conductive composite materials. The method is characterized in that phytic acid with high conductivity is doped with polyaniline under neutral conditions, the low-cost filter material is subjected to conductive modification, and good conductive performance is kept under the neutral conditions. The doped polyaniline is firmly loaded, and the good filtering separation performance of the filter cloth is kept; the conductive performance is improved due to graphene modification; the non-conductive filter material is modified into a filter membrane with high conductivity, the application range of the filter membrane is widened, and the filter membrane is particularly suitable for applying a micro electric field to relieve the membrane pollution and other membrane charging processes. The method has the beneficial effects that the graphene polyaniline is combined with the filter material, and the conductivity of the filter membrane is greatly improved, particularly the conductivity under the neutral conditions; and therefore, the modified low-price filter material is a conductive filter membrane and has wide application prospects in the fields of membrane charging process and water treatment thereof.

The present invention provides a method of treating a reverse osmosis membrane for boron rejection enhancement, comprising contacting the reverse osmosis membrane with a chemical coating such as PHMB, wherein the reverse osmosis membrane is part of a single-pass reverse osmosis system is configured to reduce the boron concentration of normal seawater or brackish water to less than a predetermined amount.

Anti-fouling coating compositions and methods of making and using those compositions are provided. In an embodiment, a coating composition comprises ceramic nanoparticles, wherein the coating composition is capable of inhibiting contaminants from adhering to a solid surface.

A biodelivery system has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks.

According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or disintegration of the liposome proceeds. Thereafter the biocidal core is released to react directly with the biofilm encased microorganisms. Upon the death of the organisms, the matrix decomposes and thereby results in reduced fouling of the water bearing system, resulting in increased heat transfer, increased flux, less deposit of colloidal and particulate solids and dissolved organics on the surface of the microfiltration membrane, thereby reducing the frequency and duration of the membrane cleaning and ultimate replacement.

A process has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks.

According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or programmed disintegration of the liposome proceeds. Thereafter the biocidal aqueous core is released to react directly with the biofilm encased microorganisms. Upon the death of the organisms, the polysaccharide/protein matrix decomposes and thereby results in reduced fouling of the water bearing system, resulting in increased heat transfer, increased flux, less deposit of colloidal and particulate solids and dissolved organics on the surface of the microfiltration membrane, thereby reducing the frequency and duration of the membrane cleaning and ultimate replacement.

An improved stabilized biocidal delivery system has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex bio-film matrices through the use of liposome vesicular carriers, thereby removing the bio-fouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks. The improved stabilized biocide is comprised of a vesicle encapsulated biocide that is stabilized against chemical and heat degradation over longer periods of time than previously possible through the incorporation of a stabilizer compound.

Hydrophobic polymer particles (e.g., granules or fragments) employed as filter media, e.g., for filtering runoff water, include an antimicrobial compound on exterior surfaces and can reduce proliferation of microbial organisms as well as sorb chemical contaminants from the water. By employing this dual decontamination action, filter systems employing such particles can improve the quality of runoff water (or other contaminated water streams) and reduce the risk presented by potentially harmful organisms.

The invention discloses an automatic lifting type water quality monitoring device for an aquaculture pond. The device comprises a floater capable of floating on water, a cable winch is mounted on the floater, a floater body below the cable winch is provided with a through hole, and a sensor cable of a water quality sensor is wound on the cable winch to rotate along the cable winch. The water quality sensor is downwardly submerged in water through the through hole of the floater and capable of changing depth in water along with rotation of the cable winch. A junction box is arranged on the floater body, and the cable of the water quality sensor and a cable of a step motor which drives the cable winch are connected to the junction box on the floater. A controller and a wireless communication module are arranged in the junction box, and the junction box is connected to a power supply box on the bank of the pond.

The invention provides a colloidal gold immunoassay analyzer, which comprises a device bottom plate for providing installation space; a reagent strip rotating loading unit for automatically loading reagent strips; a sample unit installed on the equipment bottom plate for providing detection sample; a sample loading unit, installed on the bottom plate of the device, for loading the sample to be tested in the sample unit; a reaction disk unit, installed on the bottom plate of the device, for receiving the loading of the reagent strip rotating loading unit The reagent strip and the sample to be detected loaded by the sample loading unit, the sample to be detected reacts with the reagent strip; the detection unit is used to receive and detect the reagent strip reacted by the reaction disk unit. The colloidal gold immune analyzer provided by the invention can realize simultaneous detection of various samples, has various functions, convenient installation of reagent strips, and simple structure.

A mixture for treating water in a biological water treatment process is provided comprising an organic-based flocculant, a micronutrient; and a polymer. The flocculant, the micronutrient and the polymer are mixed in a predetermined ratio to enhance said biological water treatment. The mixture is particularly suited to enhancing flocculation of particles, reducing fouling on a surface of a membrane in a membrane bioreactor, improving uptake of phosphorous and/or nitrogen by a biomass in a biological water treatment system, improving bioactivity of a biomass and/or floc in a biological water treatment system and improving flux in a membrane bioreactor.

Use of bacterial cells of the genus Tenacibaculum, from the crude cellular extract or from its cultivation supernatants, capable of degrading N-acyl homoserine lactones, for quorum quenching, for treatment of infectious bacterial illnesses or to inhibit formation of biofilms.

The invention discloses a rheid liquid-filled underwater glider with nearly neutral buoyancy. The glider comprises a rheid liquid-filled cabin, a pressure-resistant cabin, a front fairing, a rear fairing, a wing unit, a buoyancy adjusting unit, a posture adjusting unit, a main control unit and an antenna unit; the rheid liquid-filled cabin is made of a flexible skin and assembled outside the pressure-resistant cabin and can be filled with compressible liquid; an outer skin of the buoyancy regulating unit is in direct contact with seawater, and a high-pressure pump and an inner fuel tank of thebuoyancy adjusting unit, the posture adjusting unit and the main control unit are arranged in the pressure-resistant cabin; the front fairing and the rear fairing are arranged at the front end and the rear end of the pressure-resistant cabin respectively; the wing unit is arranged on the rear fairing, and the antenna unit is arranged at the tail of the rear fairing. The glider can realize passivebuoyancy compensation based on marine environment pressure and temperature changes, the glider has nearly neutral buoyancy in the running process, and energy consumption caused by buoyancy adjustmentin the moving process of the glider is reduced.

The invention discloses a multifunctional blood collection device suitable for collection of a trace blood sample. The device includes a blood collection tube and a sealing member, wherein the sealingmember is installed on the blood collection tube, venous puncture and vacuum blood collection are realized through the sealing member, and the blood collection tube is divided into a blood collectionsection and a collection section; and a blood guide tube mouth is formed in the blood collection section, the blood guide tube mouth is provided with an outer edge and a flow guide slope which are used for guiding a liquid into the collection section for collection, and the bottom of the collection section is closed. Venous blood is collected when the sealing member is connected with the blood collection tube, peripheral blood collection is achieved when the blood collection section is isolated from the sealing member, so that needs of venous blood collection and peripheral blood collection are met at the same time, the multifunctional blood collection device is matched with an existing automatic labeling on-line machine, and multifunctional blood collection and standardized processing are achieved.

A streamer usable underwater for a marine seismic survey has a portion adjacent to a protuberance covered by an adhesive antifouling tape or substrate. The tape, which may be made of copper or copper alloy is configured to be fast fastened, may be applied when the streamer is deployed and may be covered by a protective jacket during recovery.

Platforms for irrigating, debriding, treating, and operating on wounds and infections in extremities are provided.

A biodelivery system has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks.

According to one embodiment of the invention, antimicrobial containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained within the biofilm matrix, the decomposition or disintegration of the liposome proceeds. Thereafter the biocidal core is released to react directly with the biofilm encased microorganisms. Upon the death of the organisms, the matrix decomposes and thereby results in reduced fouling of the water bearing system, resulting in increased heat transfer, increased flux, less deposit of colloidal and particulate solids and dissolved organics on the surface of the microfiltration membrane, thereby reducing the frequency and duration of the membrane cleaning and ultimate replacement.

A biodelivery system has been found which increases the efficiency and effectiveness of introducing antimicrobial compounds into complex biofilm matrices through the use of liposome carriers, thereby removing the biofouling in industrial water bearing systems, including piping, heat exchanges, condensers, filtration systems and fluid storage tanks.

According to one embodiment of the invention, antimicrobial compound containing liposomes are added to water systems prone to biofouling and biofilm formation. The liposomes, being similar in composition to microbial membranes or cells, are readily incorporated into the existing biofilm. Once the antimicrobial compound containing liposomes become entrained with the biofilm matrix, the decomposition or disintegration of the liposome proceeds. Thereafter the biocidal core is released to react directly with the biofilm encased microorganisms. Upon the death of the organisms, the matrix decomposes and thereby results in reduced fouling of the water bearing system, resulting in increased heat transfer, increased flux, less deposit of colloidal and particulate solids and dissolved organics on the surface of the microfiltration membrane, thereby reducing the frequency and duration of the membrane cleaning and ultimate replacement.