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233 results about "Microbial decontamination" patented technology

Microbial decontamination of food

PCT No. PCT / GB98 / 02840 Sec. 371 Date Jul. 14, 1999 Sec. 102(e) Date Jul. 14, 1999 PCT Filed Sep. 18, 1998 PCT Pub. No. WO99 / 13741 PCT Pub. Date Mar. 25, 1999Food is rendered sterile by UV irradiation, preferably with UV at 265+ / -15 nm. A sterilization unit may include UV sources (90, 100, 110, 120) and a heat source, which may be a broad band UV source, a source of IR or microwave radiation. A combined microwave / UV unit can be used to defrost frozen food and simultaneously sterilize it or maintain sterility. Heating prior to UV irradiation can enhance the sterilization, as can rapid cooling after irradiation. Irradiation can also be enhanced by displacing the food during irradiation e.g. by supporting it on a rotatable support (135) and / or by displacing it relative to the support surface.
Owner:NEWMAN PAUL BERNARD

Plant Air Purification Enclosure Apparatus and Method

A plant air purifying enclosure, or “PAPE,” contained within an unconditioned space, either within or outside a building, containing therein a plant air purifier, which is used to purify air using plants and microbes growing therein. The PAPE enclosure itself receives poor indoor quality air from within structure where the PAPE is located or from a structure close by along with thermal energy which keeps the plant air purifier enclosure at a suitable temperature for the plants and air cleaning microbes within the air purifier. Poor air enters the enclosure, is purified by the plants and microbes, and returns in purified form back to the habitable space from which it was taken. This lowers the amount of outside air needed for ventilation purposes and so lessens a building's overall energy consumption while providing efficiently for naturally purified air. Fundamentally, the object of this invention is to specify devices, systems and methods to house / enclose plant purifiers in such a way that they can readily be deployed on a wide scale.
Owner:MITTELMARK MARC A MR +3

System for handling processed meat and poultry products

Food products, such as precooked meats, sausages, and the like are microbially decontaminated in their cooking packages to remove surface microorganism contamination from the packages. The cooking packages are removed and the food products optionally subjected to further processing, such as slicing, and then packaged in aseptic packaging. The microbial decontamination step, further processing and packaging are carried out in a clean room which is maintained to a high level of sterilization or disinfection to minimize or eliminate contamination of the food products with pathogenic microorganisms such as Listeria Monocytogenes. The food products thus leave the packaging plant with a much higher assurance of food safety than is found in a conventional packaging plant.
Owner:STERIS CORP

River course ecological treatment system

A river course ecological treatment system essentially comprises a plurality of ecological biological water purification systems and a plurality of plastic retaining dams disposed along a river course, and at least one damp land ecological water purification system disposed beside the river course. The plastic retaining dams separate the river course into several retaining regions. The ecological biological water purification systems purify the water in the retaining regions by microorganism purification. Afterward, the water purified by the ecological biological water purification systems is introduced into rainwater channels of the at least one damp land ecological water purification system. After being purified by aquatic plants in the at least one damp land ecological water purification system, the water returns to the retaining regions the downstream portion of the river course. Therefore, a river improvement system capable of performing both step-by-step treatment and joint treatment is effectuated.
Owner:WANG THOMAS

Plant air purification enclosure apparatus and method

A plant air purifying enclosure, or “PAPE,” contained within an unconditioned space, either within or outside a building, containing therein a plant air purifier, which is used to purify air using plants and microbes growing therein. The PAPE enclosure itself receives poor indoor quality air from within structure where the PAPE is located or from a structure close by along with thermal energy which keeps the plant air purifier enclosure at a suitable temperature for the plants and air cleaning microbes within the air purifier. Poor air enters the enclosure, is purified by the plants and microbes, and returns in purified form back to the habitable space from which it was taken. This lowers the amount of outside air needed for ventilation purposes and so lessens a building's overall energy consumption while providing efficiently for naturally purified air. Fundamentally, the object of this invention is to specify devices, systems and methods to house / enclose plant purifiers in such a way that they can readily be deployed on a wide scale.
Owner:MITTELMARK MARC A MR +3

Method and device for treating organic waste gas by combining photocatalysis and microorganisms and application thereof

The invention provides a method for treating organic waste gas by combining photocatalysis and microorganisms. Simultaneously, the invention also discloses a device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms and application thereof. The method for treating the organic waste gas by combining the photocatalysis and the microorganisms comprises the steps of physical dust removal, photocatalyst catalytic oxidation, microorganism purification, and the like, and can effectively eliminate total suspended particulate matters in the organic waste gas and volatile organic compounds in waste gas. The device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms is applied to treating industrial organic waste gas, and is particularly applicable to treating the organic waste gas in various industrial organic waste gas emission workshops.
Owner:深圳市中拓天达环保科技有限公司

Method for treatment of waste emulsion

The invention discloses a method for the treatment of waste emulsion, more particularly a method for the treatment of waste emulsion generated in the machining processes such as cutting, grinding and the like. The method comprises the following steps: separation of stored emulsion breakers, mechanical air flotation, ion-carbon electrolysis, coagulating sedimentation, oil separation with inclined plate, microorganism purification, sedimentation, sand filtering, etc.; the method has the advantages of simple technology and standard-reaching wastewater, and devices for the implementation of the method have small floor area, little investment, low running cost, low energy consumption, maximal recycling of waste oil resource and prominent operability and is widely suitable for machining and the treatment of waste emulsion in other industries. The waste oil recycled according to the method is completely capable of being used for the production of patented product, the protective grease, thus idealized application of resources is achieved.
Owner:成都蜀光石油化学有限公司

Seawater recirculating aquaculture system

The invention discloses a seawater recirculating aquaculture system which comprises a fish pond, an oxygen dissolving tank, an aeration aerator, a first microorganism purifying pond, a second microorganism purifying pond, a rapid filter, a full automatic microstrainer, a protein separator, a temperature adjusting pond, an ultraviolet sterilizer, a water quality monitoring system and a circulation pump. The water quality monitoring system comprises a single chip microcomputer and a sensor. The factory-like seawater fish aquaculture system can greatly reduce investment cost of seawater factory-like recirculating aquaculture and energy consumption in the aquaculture process, improves seawater resource utilization rate, saves energy, protects environment, recycles aquaculture waste and has the advantages of being simple in process and fewer in required water treatment devices and the like.
Owner:SUZHOU YANGCHENG LAKE FISHERIES TECH CENTCO

Aquacultural water body cleaning method using microorganism

The invention relates to a process for purifying culturing water mass by utilizing microorganism, wherein microbiological functional bacteria of four various physiological categories, including nitrifying bacteria and nitrosation bacteria, denitrogenation sulfur bacillus in denitrifying bacteria, sulfur bacteria, and photosynthetic bacteria are thrown into the culturing water mass, the throwing amount is 0.05-0.20% of the culturing water mass, while the ratio by volume of various bacteria thrown is, nitrifying bacteria and nitrosation bacteria : denitrogenation sulfur bacillus in denitrifying bacteria : sulfur bacteria : photosynthetic bacteria = (1-4) : (1.6í½3) : (2í½3.6) : (1í½4). The invention can substantially reduce the contaminant in the culturing water mass. íí
Owner:TIANJIN GUARD T & D

Process for treating landscape water eutrophication

The invention discloses a process for treating landscape water eutrophication, which sequentially comprises the following steps of: 1) firstly, uniformly adding a composite microbial agent into landscape water; 2) secondly, after 10 days, uniformly adding a chemical dephosphorization medicament into the landscape water; and 3) finally, in the next day, placing an artificial floating island in the middle of the water, and planting aquatic plants on the artificial floating island to absorb nitrogen and phosphorus in the water by using the root systems of the aquatic plants. The process has the advantages that: a chemical method and a biological method are comprehensively utilized to remove pollutants from the water, namely a microbiological purification method, a chemical dephosphorization method and an aquatic plant repairing method are integrated, so that organic matters and ammonia nitrogen are removed from the water, the phosphate release of mud at the bottom is controlled, and the total nitrogen removing effect is good. Bad V class water is finally purified to meet the standard of V class water by the process according to the spatial and time effects of three kinds of complementary technology.
Owner:TIANJIN MUNICIPAL ENG DESIGN & RES INST +2

Method for preparing selective microbial packing

The invention relates to a method for preparing selective microbial packing. A plant organic fiber or a mixture of the plant organic fiber and activated carbon is used as basic packing, and the method comprises the following steps of: screening, separating and purifying activated sludge to obtain specific desulfurization bacteria; massively propagating and culturing the bacteria in nutrient solution to prepare desulfurization bacterium mother solution; and performing nutrient solution soaking, spraying and mother solution biofilm formation on the basic packing to prepare the selective microbial packing. The biological packing is used for microbial purification in waste gas treatment, and is particularly used for removing stinky pollutants produced in petrochemical plants, sewage treatment plants, urban sewage treatment plants, animal husbandry farms and the like. By the method, class I pollutants in exhaust gases of a refinery are treated specially, the treatment load and efficiency of the pollutants are improved, and impact resistance during change of working conditions is improved.
Owner:CHINA PETROLEUM & CHEM CORP +1

Microbial filler and production thereof

Fixed microbial filler and its production are disclosed. The process is carried out by taking animals, plant, carbon, textile and particle or fiber of engineering plastic as skeleton of filler, immersing bacterial liquid from cultured active sludge, washing, curing, sizing and obtaining fixed microbial filler with purified microbial membrane. The filler is particle or fibrous mixture and consists of peat, active carbon, mixture of various plants stems or leaves, hollow plastics and mixture of above various substances.
Owner:CHINA PETROLEUM & CHEM CORP +1

Microbial purifying ecological treatment system of landscape water body

The invention discloses a microbial purifying ecological treatment system of a landscape water body, which comprises a first-stage filter tank (1), a second-stage biochemical pool (2), a third-stage biochemical pool (3), a fourth-stage reduction pool (4), a fifth-stage clean water pool (5), and a pollution discharge pool (6). The invention adopts micro-power circulation, filtration and sedimentation, utilizes a microbial contact oxidation method, via a multi-stage artificial beneficial microbial culture bed, by a technical proposal that an aerobic beneficial microorganism takes in and degrades the organic pollutant, nitrogen and phosphorus plant nutrient, and then a ultraviolet ray implements sterilization and disinfection for purifying and restoring the clear water, and thus solving the problems and shortcomings of high cost, water source restriction, drug contamination, and lower removal rate which exist in the prior art. The microbial purifying ecological treatment system of the landscape water body can lead the purifying treatment of the landscape water body to achieve the purposes of easy control, high removal, low cost, non-needing water change, and non-drug pollution by the way of artificially cultivating aerobic beneficial microbial ecological circular automatic purification.
Owner:NINGHAI TIANHE ECOLOGICAL WATERSCAPE CONSTRCO

VOCs treatment method and device

InactiveCN105056743AOptimizing the constraints of secondary pollutionEasy to useDispersed particle separationAir quality improvementLiquid wasteMicro nano
The invention discloses a VOCs treatment method and device. The device comprises a micro-nano bubble purifying tower (1), a microorganism purifying tower (8), an induced draft fan (15), a chimney (16) and a circulating fluid purifying and recycling device (17), wherein a gas outlet of the micro-nano bubble purifying tower (1) is connected with a gas inlet of the microorganism purifying tower (8) through an air duct; a gas outlet of the microorganism purifying tower (8), the induced draft fan (15) and the chimney (16) are connected through an air duct in sequence. According to the device, the circulating fluid purifying and recycling device is used for treating and purifying circulating fluid containing more VOCs generated by the micro-nano bubble purifying tower and the microorganism purifying tower, the circulating fluid is self supplied and can be repeatedly utilized, and the limit condition that the monomer micro-nano bubble purifying tower and the microorganism purifying tower are used for processing secondary pollution of liquid waste generated by the system can be greatly purified, so that the mode that the micro-nano bubble purifying tower and the microorganism are combined for processing VOCs can be widely used.
Owner:广东紫方环保技术有限公司

Microbial purification facility and method for water quality of intensive culture system of pond

The invention relates to a microbial purification facility and a method for the water quality of an intensive culture system of a pond. The facility comprises an aeration filter tank, a non-aeration filter tank, a water quantity regulating valve and all connecting water pipes. Corallite, filtering cotton and bamboo joints are filled in the aeration filter tank, and the bottom in the tank is provided with radial water outlet pipes; and the non-aeration biological filter tank is an earth ditch the surface of which is covered with a plastic membrane, and a filtering material is filtering cotton which is hung transversely. In the invention, the quantity of water entering the aeration filter tank is regulated according to the mature condition of a biomembrane of the aeration filter tank and the pollution degree of the wastewater of a culture pond; nutritive salt concentrate is added into a filling opening of nutritive salt, and the optimal proportion of C:N:P of influent water is kept; beneficial bacteria attached to the filtering material of the aeration filter tank can decompose and transform injurants generated in the culture process; and then, EM bacteria and native bacteria lost in the aeration filter tank are fully utilized by the non-aeration filter tank, and the injurants are continuously decomposed and transformed. The invention has high purification efficiency, low cost and convenient material taking and processing and can be widely applied to the purification of the water quality of the intensive culture of ponds for briny and fresh water fishes, shrimps and crabs.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI

Flexible walk-in environmental enclosure

An enclosure assembly (10, 10, 10) includes a framework (12) formed from structural members and a flexible transparent enclosure (14) which provides an enclosed space for isolation and or treatment of patients, equipment, and the like. A treatment material, such as hydrogen peroxide or other gaseous or vapor sterilant, may be fed to the enclosure to microbially decontaminate or otherwise treat the equipment. The enclosure is quickly assembled and disassembled after use, making it suitable for treatment of large pieces of equipment which are not readily moved or which are too large to be accommodated conventional sterilization equipment.
Owner:AMERICAN STERILIZER CO

River treatment system based on micro-nano oxygenation-aeration and biological purification effect

The invention relates to a river treatment system based on micro-nano oxygenation-aeration and biological purification effect. The river treatment system comprises a preliminary filtering device, a water storage tank, a host of a rapid micro-nano bubble generating device, an oxygenation device, a micro-nano bubble aerator and a solid-state microbial carrier, wherein the preliminary filtering device, the water storage tank, the host of the rapid micro-nano bubble generating device and the micro-nano bubble aerator are successively communicated with each other via pipelines; the oxygenation device is communicated with the host of the rapid micro-nano bubble generating device; and the solid-state microbial carrier is fixedly connected with an aeration pipeline of the micro-nano bubble aerator. The river treatment system provided by the invention cooperatively uses the rapid micro-nano bubble generating device and the oxygenation device for oxygenation of a river; and microbial purification in the aeration pipeline is cooperatively carried out so as to reduce the biochemical oxygen demand (BOD) and the contents of total nitrogen (TN) and total phosphorus (TP) and to allow ecological equilibrium of the river to be recovered.
Owner:BEIJING ZHONGNONG TIANLU MICRO NANO BUBBLE WATER S&T

Waste water treatment apparatus

A waste water treatment apparatus includes a physical filter unit. The physical filter unit includes a filter screen layer therein to filter impurities which are large particles and a distal end connected with a changeable fluid dirt activation unit to discharge the bubbles and particles of the waste water. A side wall of the storage cylinder is provided with a storage pipe to communicate with the top of at least one microorganism filter unit. The microorganism filter unit includes a microorganism filter cylinder to purify the waste water through microorganisms. The waste water treatment apparatus further includes a water storage unit. The water storage unit includes a water storage cylinder to collect the treated water for use.
Owner:MATALA WATER TECH

Method and system for deep purification of drinking water by adopting oxidation-resistant film

The invention relates to a method for deep purification of drinking water by adopting an oxidation-resistant film, which comprises the following steps: conveying raw water and leading the raw water to enter into a contact tank, inputting gas containing ozone via a microporous aerator for carrying out ozone aeration, and carrying out oxidation and degradation on organic matters in water flow; further leading the water flow to enter into an oxidation-resistant film filtering component above the microporous aerator for filtration; and leading the water flow after the filtration by the oxidation-resistant film to enter into a granular activated carbon filtering bed layer for adsorption and microbial purification, effectively removing the residual organic matters and ammonia nitrogen and obtaining the drinking water after deep purification. The method can realize the deep purification of a water source with micro-pollution through an ozone, oxidation-resistant film and granular activated carbon combined system, break through the limitations of the commonly used organic film treatment, not only remove the turbidity in the raw water, but also effectively remove the high-concentration organic matters and the ammonia nitrogen in the raw water; furthermore, the method can carry out transformation on the basis of the conventional process of the existing water plant, does not need to carry out major adjustment on main structures of the water plant, and is convenient for popularization.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Method and apparatus for microbial decontamination

A process and apparatus is provided for generating chlorine dioxide gas for the fumigation of enclosed spaces that includes adding reactants for generation of chlorine dioxide by dropwise addition to an aqueous reaction medium in a sealed reaction chamber while bubbling a motive gas through the aqueous reaction medium, whereby the motive gas releases the generated chlorine dioxide gas from the aqueous reaction medium and drives the release of chlorine dioxide gas from reaction chamber.
Owner:SHULER ROBERT K

Air micro organism purifying effect evaluation system and application thereof

The invention relates to an air micro organism purifying effect evaluation system, mainly comprising three parts: a machine room, a personnel operation zone and an exposed zone. The system of the invention not only can research air micro organism aerosol and evaluate the effect of air micro organism purifying device, but also can be taken as a microbiological lab capable of effectively protectingthe environment and operational personnel in the lab, thus realizing function division and providing an airtight work environment in relatively negative pressure.
Owner:中国疾病预防控制中心环境与健康相关产品安全所

Device for purifying flue gas by utilizing microalgae source photosynthetic microorganisms and method thereof

The invention discloses a device for purifying flue gas by utilizing microalgae source photosynthetic microorganisms and a method thereof, which relate to environmental biological resource engineering. An LED microalgae source photosynthetic microorganism friendly illuminant of the system conducts light wave produced by an LED to the surfaces of the microalgae source photosynthetic microorganisms through light propagation media-optical fiber, and the microalgae source photosynthetic microorganisms utilize the photosynthesis to purify pollution gas such as CO2 in the flue gas dispersed in a microalgae source photosynthetic microorganism culture fluid containing growth factors so as to produce a large quantity of the microalgae source photosynthetic microorganisms as well as purify atmospheric pollutants simultaneously, wherein the microorganisms contains chlorophyll, protein and other useful organic substances. The device and the method recycle the pollutants, namely improve the efficiency of energy utilization, also eliminate the pollution, and have a green process with stronger practicability. The method has the advantages of less equipment investment, easy operation and high culture density of the microalgae source photosynthetic microorganisms in a reactor, and performs the resource utilization on the pollutants as well as purifies the pollutants simultaneously.
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY

Method and apparatus for treating rinse water in decontamination devices

A processor for decontaminating devices is comprised of a chamber for holding devices and a circulation system to circulate a microbial decontamination fluid through the chamber. A water filtration system filters water used in the processor. The water filtration system has a water line connectable to a source of pressurized water. A water decontamination system fluidly communicates with the source of water and the processor. The water decontamination system has a water circulation path and a tank located within the water circulation path. Means are provided to circulate water along the water circulation path through the tank. A gas circulation path fluidly communicates with the tank. Conveying means is provided to convey gas along the gas circulation path through the tank. An ozone producing device is located along the gas circulation path to introduce ozone into gas flowing along the gas circulation path and through the tank.
Owner:AMERICAN STERILIZER CO

Comprehensive treatment method of landscape water eutrophication and algae overgrowth

The invention discloses a comprehensive treatment method of landscape water eutrophication and algae overgrowth. The comprehensive treatment method includes: 1) chemical dephosphorization, namely dephosphorization medicament is added into landscape water body; 2) microorganism purification, namely complex microorganism fungicide composed of primary degradation bacteria and auxiliary degradation bacteria is added into the landscape water body; and 3) aquatic plant auxiliary purification, namely aquatic plants are planted in the landscape water body. The invention has the beneficial effects that three methods of chemical dephosphorization, microorganism purification and aquatic plant restoration are organically integrated, the combination mode of the three methods is adjusted according to the characteristics of high contents of organic matters, nitrogen and phosphorus in eutrophication water body, so as to develop strong points and avoid weakness, and finally poor V type water body is purified to the standard of V type water body; and the landscape water body is effectively purified, and algae growth is controlled, thus solving the problem of water body eutrophication.
Owner:TIANJIN WATER IND ENG EQUIP +2

Treatment method of ecological breeding circulating water for turtles

The invention relates to a treatment method of ecological breeding circulating water for turtles, and belongs to the technical field of aquaculture water treatment technology. The method comprises the following steps: (1) building a 'fish and vegetable' purifying pond; (2) building an biological filter tank; (3) building a purified water impounding reservoir; (4) recycling. According to the method, the aquaculture waste water is drained to the 'fish and vegetable' purifying pond to carry out primary purification through absorption and degradation of plants, and then is drained to the biological filter tank for the secondary purification through the clean-up effect of microbes. The water treated is promoted to a reservoir for recycling, so as to realize 'zero' drainage of the aquaculture water.
Owner:惠州市财兴实业有限公司

Method for purifying eutrophic water body by using aquatic animals, plants and microorganisms

InactiveCN103739174AIncrease biological diversityStable clear stateMultistage water/sewage treatmentMicroorganismAquatic animal
The invention discloses a method for purifying an eutrophic water body by using aquatic animals, plants and microorganisms; aquatic plankton is cultivated beforehand, and the following steps are carried out: a predetermined number of the cultivated aquatic plankton is put in a target water domain; the water body is kept in a transparent state as the aquatic plankton eat blue-green algae in the target water domain and restrain the regrowth of the blue-green algae; submerged plants in the target water domain are recovered to keep the water body in a stable clear state; engonus aquatic animals are poured in the target water domain to reinforce the water body biology diversity; and the ecologic stability of the water body at present is maintained. In the method for purifying the eutrophic water body by using the aquatic animals, plants and microorganisms, the ecologic method is used for forming an excellent water ecosystem to recover the service functions of the original ecosystem.
Owner:韩晋京 +2

River sediment ecological treatment method

The invention belongs to the technical field of river treatment, and particularly related to a river sediment ecological treatment method. After solid waste deposited in a river is fished, an intercepting net is arranged at the downstream of the river, citric acid solution serving as an activator and adsorption balls are added into the river, the adsorption balls are filled with adsorbents, sediment and river water are mixed and sufficiently adsorbed, microbial agents are added, a river bottom is subjected to aeration treatment and water disinfection, and submerged plants are cultivated in a tiled manner. By combining various modes of solid waste fishing purification, adsorption of organic pollutants by the adsorption balls, microbial water purification, river bottom ecological plant system building and the like, the river sediment is progressively and omnidirectionally purified and repaired to restore ecological balance, and the river sediment ecological treatment method is low in cost, remarkable and lasting in treatment effect and suitable for popularization and use.
Owner:河南省科学院地理研究所

Multi-stage ecological water tank and ecological pond combined system

The invention discloses a multi-stage ecological water tank and ecological pond combined system. The system comprises a ladder-type ecological water tank and an ecological pond, wherein the ecological pond is arranged in a river channel and comprises an enclosure which separates out an enclosure region from the river channel, a plurality of bionic aquatic plants are arranged in the enclosure region, and aeration holes corresponding to the bionic aquatic plants are formed in the lower parts of the bionic aquatic plants and are communicated with aeration devices; a water intake is formed in the ecological pond; the ladder-type ecological water tank comprises a first ecological water tank to an Nth ecological water tank which are sequentially arrayed from outside to inside and from high to low; the first ecological water tank is communicated with the water intake through a water intake pipeline; adsorbing fillers are arranged in the first ecological water tank, and filler-water plant-microorganism purification systems are arranged in a second ecological water tank to the Nth ecological water tank; a water outlet is formed in the bottommost ecological water tank in the ladder-type ecological water tank and is communicated with the ecological pond. By combining in situ regulation with abnormal-site regulation of the river channel, the black and odorous water quality is efficiently purified.
Owner:HUATIAN ENG & TECH CORP MCC +1
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