22 results about "Microbial decontamination" patented technology

The invention discloses a water quality purification system based on a heterogeneous catalytic material and an ecological floating bed. The water quality purification system comprises a floating bed device, a purification device, a fixing device and a water moving trolley, the floating bed device comprises a floating bed carrier and aquatic plants planted on the floating bed carrier; root systems of the aquatic plants extend into the water, and microorganisms are attached to the root systems; the purification device is arranged on the floating bed carrier, is in contact with water flow and comprises a plurality of purification assemblies distributed on the floating bed carrier at intervals, and each purification assembly comprises a purification bag suspended on the floating bed carrier and a heterogeneous catalytic material loaded in the purification bag; the fixing device is arranged on the floating bed carrier and fixes the floating bed carrier on the water surface of a target area; the water moving trolley is connected with the floating bed carrier and drives the floating bed carrier to the water surface of the target area; according to the water quality purification system disclosed by the invention, a material-plant-microorganism three-in-one synergistic purification framework is constructed, and the potential of an ecological floating bed in the aspects of sustainable pollution control and phosphorus resource recovery is remarkably enhanced.

The invention relates to the technical field of water pollution treatment, in particular to an artificial composite ecological wetland system for water nutrient pretreatment, which comprises a water inlet forebay, a sedimentation tank, a collection channel, a water distribution channel I, a biological contact oxidation area, a water distribution channel II, a composite ecological wetland area and a water storage area, according to the micro-polluted water treatment system, a three-stage series connection structure of the sedimentation tank, the composite ecological wetland area and the water storage area is arranged, and efficient removal of nutrients such as nitrogen and phosphorus in micro-polluted water is realized by combining an intelligent regulation and control technology; and a multi-layer ecological purification system is formed through the composite ecological wetland area to treat the water body, so that the system has the characteristics of high purification efficiency, low operation cost, simplicity and convenience in maintenance and the like, and is particularly suitable for pre-pretreatment of a drinking water source area and ecological restoration of a micro-polluted water body.

A denitrification filter comprises: a first unit comprising: an inlet located at the lower portion of the first unit; the autotrophic filler layer is positioned at the upper part of the first unit, and the wastewater is purified by autotrophic microorganisms in the autotrophic filler layer; a second unit disposed adjacent to the first unit in a horizontal direction, the second unit including: an outlet at a lower portion of the second unit; the heterotrophic filler layer is positioned at the upper part of the second unit, and the wastewater is purified by heterotrophic microorganisms in the heterotrophic filler layer; wherein in the filtering mode, wastewater sequentially flows through the inlet, the autotrophic filler layer, the heterotrophic filler layer and the outlet.

The present application relates to sewage treatment technical field, specifically to a kind of acrylonitrile sewage treatment device, comprising: microbial purification tank, exhaust mechanism, the exhaust mechanism has two and symmetrically set in the two sides of the inner wall of microbial purification tank width direction, the exhaust mechanism includes the cavity plate fixedly connected in the inner wall of microbial purification tank. By cavity plate, partition block and air separation assembly in exhaust mechanism, air can be injected and extracted into microbial purification tank, so as to provide corresponding purification environment for aerobic microorganism or anaerobic microorganism to purify sewage, and then realize that when injecting air, air exposure area and immersion area can inject air into microbial purification tank simultaneously to provide sufficient oxygen for aerobic microorganism to purify sewage, help its efficient decomposition of pollutants in sewage, while when extracting air, air separation assembly disconnects the communication of air exposure area and immersion area, so that suction airflow is only discharged from air exposure area, avoid sewage from flowing out with cavity plate, while avoiding suction airflow from immersion area to interfere with anaerobic environment in tank.

The utility model relates to the technical field of ecological purification, in particular to a riverway ecological filtering structure which comprises a closed filter tank, a water distribution chamber and a water collection chamber are arranged at the two ends in the filter tank respectively and communicated with a water inlet pipe and a water drainage pipe through water pumps respectively, and a port of the water inlet pipe is communicated with a floating object filtering barrel. An S-shaped channel is arranged between the water distribution chamber and the water collection chamber in the filter tank, and a cobblestone supporting layer, a microorganism purification layer and a sandy soil layer are laid in the channel from bottom to top. During use, negative pressure is formed in the floating object filtering barrel under the action of the water pump, and floating objects on the river surface are guided and intercepted in the barrel. And then river water enters the channel and is discharged into the river channel again after being subjected to interception of fine impurities by the sandy soil layer twice and decomposition of organic matters in the water by metabolism activity of microorganisms in the microorganism purification layer. And the secondary purification and filtering effects are greatly improved. Moreover, the river water is actively sucked, so that the purifying and filtering amount of the river water is greatly increased, and the filtering and purifying efficiency of the river water is further improved.

The application discloses a method and system for purifying ammonia-nitrogen wastewater by using oyster shell reinforced photosynthetic microorganisms. Seed liquid is obtained by culturing and enriching Rhodopseudomonas palustris, Rhodospirillum profundum, Sulfurspirochaeta shaposhnikovii and Rhodopseudomonas coprophila, and the above photosynthetic microorganisms are used as the core for purifying ammonia-nitrogen wastewater. The photosynthesis of the photosynthetic microorganisms absorbs light energy, converts the light energy into chemical energy, reduces the ammonia-nitrogen in the wastewater into inorganic nitrogen gas by using the chemical energy, and fixes CO2 in the air into biological organic matter, so that the removal of ammonia-nitrogen in the wastewater and the growth and reproduction of the photosynthetic microorganisms are realized. In the application, the photosynthetic microorganisms are used for denitrification, the carbon source input cost in the ammonia-nitrogen wastewater treatment process is greatly reduced, the discarded oyster shell is used as a biological carrier, the pH value of the wastewater can be corrected and CO2 in the water body can be supplemented, and the photosynthetic microorganisms are provided with a favorable growth and reproduction environment and a denitrification environment, and meanwhile, the discarded oyster shell can be treated in a reduced amount.

This invention discloses a high-concentration wastewater pretreatment device, relating to the field of wastewater treatment technology. It includes: a treatment tank with a sedimentation chamber; wherein the sedimentation chamber contains a filter element, which is inclined; a transfer tank connected to one side of the treatment tank; wherein the transfer tank has multiple reaction elements and multiple linear adjustment elements for driving the reaction elements to move vertically; and a purification cylinder horizontally positioned on the side of the transfer tank away from the treatment tank, and connected to the transfer tank. This invention treats wastewater through multiple steps, completing preliminary filtration, oxidation purification, membrane interception, and microbial purification, thereby treating different types of pollutants in the wastewater separately and improving the wastewater treatment effect. Simultaneously, it can also centrally treat solid sediments and gaseous waste generated during the treatment process. The operation is simple, convenient, and highly practical.

The utility model discloses a kind of microbial purification capacity test test cabin, comprising: cabin, cabin has cabin door and is used for injecting microorganism microbial sample inlet, to be detected purification sample can pass through cabin door in and out cabin and can carry out microbial purification to air in cabin;Sensor is set in cabin, sensor can detect temperature and humidity in cabin;Temperature regulating assembly, temperature regulating assembly can adjust temperature in cabin;Humidity regulating assembly, humidity regulating assembly can adjust humidity in cabin;Microorganism injection assembly, the output end of microorganism injection assembly is communicated with microbial sample inlet and is used for injecting microorganism in cabin;Microorganism collection detection assembly, microorganism collection detection assembly can detect the content of microorganism in cabin.The above-mentioned microbial purification capacity test test cabin, the detection of the purification effect of to-be-detected purification sample is convenient.

The instant disclosure relates to microbial decontamination of solid surfaces. The disclosure provides method for reducing or eliminating microbes from a solid surface by employing a combination of quaternary ammonium compound coating onto the solid surface and electric field application. Particularly, the method comprises subjecting a solid surface to an electric field comprising a voltage of 2 kV / cm to 6 kV / cm and a capacitance of 0.002 μF to 0.06 μF, to reduce or eliminate the microbes from the solid surface, wherein said solid surface comprises a coating of quaternary ammonium compound. Corresponding products including kit and solid material / device are also provided. The present method has several advantages including but not limiting to high efficiency (>4 log10 or >99.99%) in reducing / eliminating microbial load on solid surfaces; requirement of very low concentrations of quaternary ammonium compound [about 0.01% (w / v) to 1% (w / v)] to achieve said high efficiency; and shorter time-periods.

Portable Microbial Decontamination Laboratory Device

The utility model provides a waste gas treatment device. The waste gas treatment device comprises an air inlet channel; the air outlet end of the air inlet channel is communicated with an air inlet of the microorganism purification tower; the microorganism purification part is arranged in the microorganism purification tower and is used for purifying the waste gas; the waste gas concentration detection piece is arranged on the air inlet channel and is used for detecting the concentration of waste gas in one end, communicated with the microorganism purification tower, of the air inlet channel; the concentration adjusting structure is used for adjusting the concentration of the waste gas in the microbial purification tower. The problems that in the prior art, due to the fact that the concentration fluctuation of pollutants such as VOCS and hydrogen sulfide in waste gas is large, the microbial purification unit is impacted, even poisoning death of microorganisms is possibly caused, and the treatment capacity of the microbial purification unit is reduced are solved.

The utility model discloses a riverway reoxygenation purification system which comprises circulating reoxygenation purification subsystems, each circulating reoxygenation purification subsystem comprises a counterweight unit, a microorganism purification unit and a transverse circulation unit, and when the number of the circulating reoxygenation purification subsystems is multiple, the circulating reoxygenation purification subsystems are arranged in the flow direction of a riverway. The microorganism purification unit comprises a purification filler suitable for attachment growth of microorganisms so as to purify a river water body; the transverse circulation unit is matched with a nozzle through a circulation flow making pump, so that water flowing is enhanced, and formation of a dead water area is avoided to the greatest extent; meanwhile, when a plurality of groups of circulating reoxygenation purification subsystems are arranged, the circulating reoxygenation purification subsystems are arranged along the flow direction of the river channel, the natural river channel form is simulated, the flow state is improved, and the fluid change is increased. The device has double functions of physical filtration and biological purification on incoming water of a river, meets the multi-layer reoxygenation requirement of a river channel, increases the reoxygenation control area, is good in purification effect, simulates a natural river channel and increases fluid change.

The application discloses a river sewage outlet purification device with a microbial purification function and relates to the technical field of sewage treatment. The device comprises a microbial treatment tank, a first filter screen and a second filter screen fixedly connected to the inner side of the microbial treatment tank, and the two ends of the first filter screen and the second filter screen are fixedly connected through half-arc partition plates, a back-shaped channel is formed through the first filter screen, the second filter screen and the two half-arc partition plates, and the back-shaped channel is filled with microbial fillers. Through the gradient filler structure of the loose water inlet side and the compact water outlet side, the device realizes anti-clogging and fine filtration by grading and intercepting coarse and fine impurities, simultaneously constructs an aerobic-anoxic composite microbial population environment, synchronously completes the removal of easily degradable organic matter, the nitrification of ammonia nitrogen, the deep degradation of refractory organic matter and denitrification, avoids dead angles through micro-turbulent flow reinforced mass transfer, and significantly improves the water quality of the outlet water and the system operation stability.

The application provides a kind of artificial wetland demonstration project for purifying fluoride and nutrient elements in agricultural irrigation and drainage of the south bank of Yellow River and a building and operating method, and belongs to the technical field of agricultural drainage pollution control.The demonstration project mainly includes a pool body, an anaerobic zone, an aerobic zone, an adsorption zone, a water inlet system, a drainage system, a plant purification system, a microbial purification system, a filler purification system, a reflux system and an oxygen exposure system.The plant purification system includes floating plates, matching flowerpots, nutrient soil and reeds.The microbial purification system includes denitrifying bacteria, nitrifying bacteria and phosphorus accumulating bacteria inoculated in the anaerobic zone and the aerobic zone, and corn cob carbon source.The filler purification system includes modified zeolite fillers filled in the adsorption zone.The project can effectively remove fluoride and nutrient elements in agricultural irrigation and drainage of the south bank of Yellow River, is economical and environmentally friendly, and has good popularization and application value.

The utility model discloses a water pollution environmental protection equipment purification device, which comprises a large particle filter element, a filter chamber, a settling chamber and three microorganism purification chambers, the large particle filter element comprises a turnover filter cartridge, a sleeve and a filter screen, and two liquid discharge pipes are sleeved with fixing plates for fixation. A turnover motor is installed on a fixing plate on a liquid discharging pipe connected with the input end of the turnover filter cylinder, a rotating shaft of the turnover motor is sleeved with a driving gear disc, the filtering chamber is communicated with the settling chamber, the bottom of the settling chamber is lower than that of the filtering chamber, a filtering plate is inserted into a plate inserting groove, and a chamber bottom sludge cleaning assembly is arranged at the bottom in the settling chamber. Three wastewater discharge pipes arranged in a row are arranged in the middle of the outer side wall of the settling chamber, and the three wastewater discharge pipes are respectively connected into the tops of the three microorganism purification chambers. According to the utility model, large-particle substances can be dumped through regular overturning of the overturning filter cylinder, sludge accumulated at the bottom is regularly cleaned by the chamber bottom sludge cleaning assembly, and continuous discharge of sewage is not influenced by microbial degradation.

The present application relates to the field of sewage treatment, and more particularly to a compound microbial purification treatment device for aquaculture tail water. The compound microbial purification treatment device for aquaculture tail water comprises a support, a solid-liquid separator and the like; a solid-liquid separator, a dosing machine and a reaction tank are sequentially installed on the upper portion of the support from left to right; the solid-liquid separator, the dosing machine and the reaction tank are sequentially communicated; the solid-liquid separator is internally provided with a staged filtration structure and a backwashing structure. The present application performs staged filtration on the tail water through the solid-liquid separator, which can reduce the burden of filter frame filtration and prevent the filter frame from being blocked due to excessive impurities. Through the backwashing structure, the impurities are flushed into the blowdown pipe by the V-shaped plate and then discharged out of the equipment through the blowdown pipe, so as to achieve the effect of timely cleaning the filter frame and prevent the filter frame from being blocked, thereby ensuring the continuous filtration of the tail water. The dosing machine continuously divides, rotates and then divides again in the reverse direction to mix the liquid.

The invention relates to the technical field of farmland drainage and purification, and particularly discloses an ecological ditch and farmland small ecological purification pond collaborative purification system and method.The system comprises a water inlet unit, an ecological ditch unit, a farmland small ecological purification pond unit and a water outlet unit which are communicated in sequence; the water inlet unit comprises a water inlet and a water inlet adjusting tank, the water inlet is communicated with a farmland drainage source, the water inlet adjusting tank is used for temporarily storing farmland drainage and adjusting drainage flow and water quality, and a water outlet of the water inlet adjusting tank is communicated with the water inlet end of the ecological ditch unit; the ecological ditch unit comprises a ditch body, and a front interception area, a microorganism purification area and a plant purification area are sequentially arranged in the ditch body in the water flow direction. According to the synergistic purification system and method for the ecological ditch and the small ecological purification pond for the farmland, the settling speed of large-particle solid impurities is greatly increased, and meanwhile the removal rate of suspended solids in water is high.

The invention discloses an air microorganism purification material as well as a preparation method and application thereof, and belongs to the technical field of functional materials. The invention provides an air microorganism purification material. The material is a silver-loaded bimetallic oxide; the silver-loaded bimetallic oxide is a silver-loaded magnesium aluminum bimetallic oxide, and the molar ratio of Mg to Al is (1.6-2.6): 1; and the silver-loaded magnesium-aluminum bimetallic oxide is Ag / CLDHs. The invention further provides a preparation method of the air microorganism purification material, an air filter based on the air microorganism purification material and application of the air microorganism purification material in air microorganism purification. The prepared air microorganism purification material based on the nano-silver is environmentally friendly, green and safe; 99.95% of indoor air pathogenic microorganisms can be efficiently removed; the bacteria can be filtered out, and the bacteria can be killed in situ.

This disclosure provides a three-dimensional crop-aquaculture system for saline-alkali land, along with a method, medium, and electronic equipment for determining its benefits, relating to the field of ecological agriculture technology. The three-dimensional crop-aquaculture system for saline-alkali land includes: an aquaculture subsystem comprising aquaculture ponds; a photovoltaic power generation system comprising a photovoltaic panel array mounted on the banks of the aquaculture ponds, the vertical projection of which covers the aquaculture ponds; a crop planting subsystem comprising crop planting strips located on the banks; and a water circulation subsystem comprising a booster pump, a microbial purification pond, a mixing pond, and an irrigation device. The booster pump transports a first body of water from the aquaculture ponds to the microbial purification pond; the mixing pond receives a second body of water after ammonia nitrogen removal and dilutes the second body of water based on a preset irrigation salinity of the crop planting subsystem to obtain a third body of water; and the irrigation device transports the third body of water to the crop planting subsystem. This disclosure can improve the development yield of saline-alkali land.

The utility model belongs to the technical field of waste gas treatment, particularly relates to a waste gas treatment device based on microbial purification, and aims to solve the problems that if particle dust in existing waste gas is not cleaned in advance, the living environment of microorganisms is easy to change, and microbial carriers are blocked. In order to solve the problem that the purification effect can be reduced if microbial metabolites are not cleaned in time, the utility model provides the following scheme that the device comprises a purification box, and a filter bin and a purification bin are arranged in the purification box. The burden of subsequent microorganism purification is relieved, regular cleaning of the microorganism carrier and supply of nutrient solution are achieved through the cleaning assembly controlled by the two electromagnetic valves, blockage and pollution of the microorganism carrier are avoided, nutrition can be supplemented for microorganisms, the humidity in the microorganism carrier is effectively controlled through the exhaust fan, and the environment is protected. And a good environment is provided for growth and metabolism of microorganisms.

A bioretention pond integrating collection-filtration-purification functions and an application thereof are provided. The environment-adaptive bioretention pond integrating collection-filtration-purification functions sequentially includes, from top to bottom, an embedded composite microbial purification layer, a clay adsorption layer, a packing layer, and a gravel drainage layer. According to the unique design of the layers in the bioretention pond, the optimization of structure and function not only solves the problems of conventional systems in treatment efficiency, maintenance cost, environmental adaptability and sustainability, but also improves the overall performance and environmental friendliness of the system, and adapts to the environmental requirements of modern cities and industrial development on efficient water treatment technology.