41results about How to "Achieve photocatalytic effect" patented technology

The invention discloses a three-level deep rapid purification device for heavy metals in underground water. Suspended solids and colloids in underground water are removed through an advanced oxidation screening system, a three-level deep purification system is established by using a surface repair system, and a primary absorption layer is established by utilizing a large plant root system; a secondary enrichment layer is established by utilizing a red mud mesoporous molecular sieve and activated carbon; a third-level net fishing layer is established by utilizing a coal ash molecular sieve, zero-valent nano-iron and a nano aeration mechanism, heavy metals in the underground water are subjected to three-level deep purification, and the concentration content of the heavy metals is close to zero due to three-level purification. Meanwhile, according to the system, secondary pollution is avoided, fixed heavy metals in the treatment process are continuously absorbed by plants, the concentration and content of the heavy metals in the underground water can be rapidly reduced due to treatment, and the system is effective for a long time.

The invention provides an apparatus for removing organic matters in underground water. The apparatus mainly comprises an underground water lifting system and an advanced oxidation treatment system. The invention further discloses a method for removing organic matters in underground water by using the apparatus. According to the invention, aeration in the advanced oxidation treatment system is realized, the problem of rapid dissipation of ozone during aeration is effectively overcome, organic pollutants in underground water are effectively removed in situ, the toxicity of high-concentration organic matters is rapidly abated, and the apparatus and the method are applicable to all the organic pollution areas of underground water.

The invention provides a device for purifying toxic sewage by utilizing a three-stage bio-membrane reactor. The device comprises the following four parts: the three-stage bio-membrane reactor, a nano aerated coagulation-micro-vortex flocculation device, a three-level backflushing and screening device and an immersed hollow fiber membrane. The invention also discloses a method for treating sewage by utilizing the device. The device has high effluent quality and good transparency and can be applied to garden irrigation, site washing and the like; the humus in the treated sewage is reduced by more than 95% and the number of microorganisms in the treated sewage is reduced by 99%; the effluent quality and transparency are high.

The invention discloses a device for rapidly treating kitchen waste wastewater. The device mainly comprises a cavitation air floatation device, a first-stage turbulent flow nano-aeration backwash filter, a bio-membrane reactor, a flocculation tank, a second-stage turbulent flow nano-aeration backwash filter and a girt chamber. The invention also discloses a method for treating kitchen waste wastewater by using the device. The problems of high kitchen waste wastewater output, high treatment difficulty and long reaction period are effectively solved by mainly using a mechanical method and accessorily using a biological method according to the concept that the kitchen waste wastewater is rapidly treated, the wastewater treatment time is shortened, the generated wastewater can be rapidly discharged up to the standard, and the aims of reduction, harmlessness and recycling of the kitchen waste wastewater are realized.

The invention provides a device for purifying biologically treated sewage through nano aerated coagulation-stirred flocculation. The device mainly comprises a nano aerated coagulation-micro-vortex flocculation device, a three-stage backwashing and screening device and an outlet sump. The invention also discloses a method for treating the sewage by utilizing the device. The device has the effects of optimizing the flocculation efficiency, reducing the reagent consumption, shortening the reaction time, effectively removing pathogenic bacteria and trace organic matters in the sewage and improving the effluent quality and has the removal rate of 100%.

The invention relates to a method for the deep treatment of livestock and poultry wastewater by using a three-layer trickling filter. According to the method, the livestock and poultry wastewater enters from a charging opening of a centrifuge, suspensions of different densities are subjected to sedimentation layering, and separated sewage enters the trickling filter; water distribution is carried out in the trickling filter by a rotating water distribution disc, the sewage is firstly subjected to aerobic treatment by a biological annular layer, pollutants in the sewage are then subjected to physical adsorption and ion exchange by a molecular sieve layer, the sewage is subjected to retreatment by a gravel layer and water leading, then, the sewage is subjected to precipitation in a precipitation layer, and precipitated sewage is led into an eddy-flow-sieving purification pool under the action of a hydraulic pump; in the eddy-flow-sieving purification pool, more hydroxyl radical.OHs are generated by a nanoscale O3 bubble and ultraviolet sterilizing lamp and a semiconductor loaded filler, so that the O3 oxygenolysis of organic matters is enhanced, the advanced oxidation effect is improved, the generation rate of.OH is effectively increased, and the treatment process is completed. The invention further discloses a device for implementing the method.

The invention discloses a device for treating domestic sewage in different seasons through a soil infiltration method. The device mainly comprises five parts, namely a nano aeration ablation device, an alternate-flow soil infiltration system, a turbine screen filter and a settling pond. The invention also discloses a method for removing organic matters, inorganic matters, microbes, heavy metals and the like by utilizing the device. By adopting the device and method, contaminants with low biodegradability and high relative molecular mass are completely oxidized and degraded, bacteria and pathogenic bacteria in the sewage are killed, hormones and other complex organic matters are digested, and sterilization and disinfection effects are achieved. Aiming at the conditions that the environmental deviation of temperature and humidity in different seasons is large and the treatment environmental deviation is obvious, the effluent can reach a national primary standard.

The invention provides a heat-sensitive photocatalysis spray gel that is prepared from the following components in parts by weight: 2-4 parts of a photocatalytic material, 0.025-0.05 part of sodium alginate, 5-10 parts of heat-sensitive cellulose and 500-1000 parts of deionized water, wherein the photocatalytic material is chitosan-loaded platinum and iodine co-doped modified titanium dioxide nanopowder; the invention also provides a preparation method, which comprises the following steps: respectively adding sodium alginate and heat-sensitive cellulose into deionized water with the temperature of 80-100 DEG C, uniformly stirring, naturally cooling to room temperature, mixing, adding the photocatalytic material into the mixed solution, mixing, and carrying out ultrasonic dispersion to obtain the heat-sensitive photocatalytic spray gel. According to the invention, the thin film formed after spraying is good in stability and not prone to crystallization, fragmentation and falling off; when recycling is needed, hot water can be used for making contact with the thin film to make the thin film become a hydrogel state, the thin film can be easily and completely recycled from the surfaceof an object, the surface of the object cannot be damaged, and the indoor PM2.5 purification effect is remarkable.

The invention provides a reclaimed water reusing device for purifying sewage by utilizing a vertical subsurface flow constructed wetland. The device comprises a grillage machine, the vertical subsurface flow constructed wetland, a nano aerated coagulation-micro-vortex flocculation device, a three-stage backwashing and screening device and an ultrafiltration device. The invention also discloses a method for treating sewage by utilizing the device. By adopting the device, advanced oxidation treatment can be carried out on the clarified sewage, so that the treatment efficiency and treatment capacity are improved, the processing properties are optimized and the effluent quality is improved while the operating cost is reduced; the removal rates of bacteria and pathogens in the sewage are high, the aromatic fulvic acid substances in the treated sewage are reduced by more than 95% and the turbidity of the sewage is reduced by 99%, so that the effluent has high quality and transparency, thus avoiding the threats to body health after the effluent is discharged into water bodies.

The invention provides a device for purifying organic wastewater by nano-aeration iron-carbon micro-electrolysis. The device mainly comprises a nano-micro-electrolytic tank, an aerobiotic biomembrane reactor, a nano-aeration agglomeration-micro-vortex flocculation device and a three-level backflush screening device. The invention further discloses a method for treating sewage by utilizing the device. The device has the advantages of wide application range, high reacting speed, simple process flow, long service life, little investment cost, low operation cost, stable treatment effect and high effluent quality transparency, and is convenient to operate and maintain.

The invention relates to a sewage three-level effluent advanced treatment device. The device mainly comprises a coagulating basin, wherein the upper end of the coagulating basin is connected with a chemical dosing device, the water outlet of the coagulating basin is connected with a surface turbulence filtering device, the water outlet of the surface turbulence filtering device is connected with a photocatalytic degradation reaction device, the water outlet of the photocatalytic degradation reaction device is connected with a secondary nanometer aeration advanced oxidation device, and the water outlet of the secondary nanometer aeration advanced oxidation device is connected with an ultrafiltration device. The invention also discloses a sewage three-level effluent advanced treatment method.

The invention discloses a treatment device for sewage treatment and reclamation, which mainly comprises a grid tank, wherein the grid tank is connected with a flow-deflection composite vertical artificial wetland through a water inlet pipe; the flow-deflection composite vertical artificial wetland is connected to a surface layer turbulence screening filter through two necking-down water inlet pipes; and a water outlet of the surface layer turbulence screening filter is connected with a nano aeration advanced treatment device. The invention also discloses a treatment method for sewage treatment and reclamation.

The invention discloses a device for rapidly treating kitchen waste wastewater. The device mainly comprises a cavitation air floatation device, a first-stage turbulent flow nano-aeration backwash filter, a bio-membrane reactor, a flocculation tank, a second-stage turbulent flow nano-aeration backwash filter and a girt chamber. The invention also discloses a method for treating kitchen waste wastewater by using the device. The problems of high kitchen waste wastewater output, high treatment difficulty and long reaction period are effectively solved by mainly using a mechanical method and accessorily using a biological method according to the concept that the kitchen waste wastewater is rapidly treated, the wastewater treatment time is shortened, the generated wastewater can be rapidly discharged up to the standard, and the aims of reduction, harmlessness and recycling of the kitchen waste wastewater are realized.

The invention belongs to the technical field of air purifiers, specifically a photocatalytic air purifier; it includes a body, the top of the body is provided with an air inlet, the air inlet is arranged obliquely and the diameter of the lower end is smaller than the diameter of the upper end, and the inside of the body is A base plate is provided, the bottom of the base plate is provided with an air suction pump, the top of the base plate is provided with a rotating shaft, the surface of the rotating shaft is hinged with blades, the bottom of the blades is provided with a support plate, and the top of the support plate is provided with a return spring. The top of the support plate is provided with an elastic filter membrane; by setting the blades and connecting springs in the present invention, the operation of the air pump can drive the blades and the rotating shaft to rotate, and the blades will open horizontally under the action of centrifugal force, pushing the elastic filter membrane to deform slightly. The unique elastic filter membrane can push the connecting spring to vibrate, so that the activity of the catalyst on its surface is better, and under the action of the light source, the effect of air purification is improved.

The invention discloses a three-level deep rapid purification device for heavy metals in underground water. Suspended solids and colloids in underground water are removed through an advanced oxidation screening system, a three-level deep purification system is established by using a surface repair system, and a primary absorption layer is established by utilizing a large plant root system; a secondary enrichment layer is established by utilizing a red mud mesoporous molecular sieve and activated carbon; a third-level net fishing layer is established by utilizing a coal ash molecular sieve, zero-valent nano-iron and a nano aeration mechanism, heavy metals in the underground water are subjected to three-level deep purification, and the concentration content of the heavy metals is close to zero due to three-level purification. Meanwhile, according to the system, secondary pollution is avoided, fixed heavy metals in the treatment process are continuously absorbed by plants, the concentration and content of the heavy metals in the underground water can be rapidly reduced due to treatment, and the system is effective for a long time.

The invention relates to a method for the deep treatment of livestock and poultry wastewater by using a three-layer trickling filter. According to the method, the livestock and poultry wastewater enters from a charging opening of a centrifuge, suspensions of different densities are subjected to sedimentation layering, and separated sewage enters the trickling filter; water distribution is carried out in the trickling filter by a rotating water distribution disc, the sewage is firstly subjected to aerobic treatment by a biological annular layer, pollutants in the sewage are then subjected to physical adsorption and ion exchange by a molecular sieve layer, the sewage is subjected to retreatment by a gravel layer and water leading, then, the sewage is subjected to precipitation in a precipitation layer, and precipitated sewage is led into an eddy-flow-sieving purification pool under the action of a hydraulic pump; in the eddy-flow-sieving purification pool, more hydroxyl radical.OHs are generated by a nanoscale O3 bubble and ultraviolet sterilizing lamp and a semiconductor loaded filler, so that the O3 oxygenolysis of organic matters is enhanced, the advanced oxidation effect is improved, the generation rate of.OH is effectively increased, and the treatment process is completed. The invention further discloses a device for implementing the method.

A treatment device for high-concentration refractory organic wastewater mainly includes: anaerobic biofilm reactor, aerobic biofilm reactor, artificial wetland system, turbo screen filter tank and grit chamber. The invention also discloses a method for removing high-concentration organic pollutants in sewage by using the device. The present invention uses nano-aeration technology, combined with two methods of photoexcitation and photocatalysis to generate hydroxyl radicals with high efficiency, utilizes its strong oxidizing ability to carry out deep treatment of biological treatment effluent, and removes effluents with poor biodegradability and high relative molecular mass Pollutants are completely oxidized and degraded, and bacteria and pathogenic bacteria in the sewage are killed at the same time, playing the role of sterilization and disinfection.

The invention provides a device for carrying out deep purification treatment on effluent by utilizing rotating biological contactors. The device mainly comprises a nano aerated ablation device, a rotating biological contactor pool, a nano aerated coagulation-micro-vortex flocculation device, a three-stage backwashing and screening device and a photocatalytic degradation reaction device. The invention also discloses a method for treating sewage by utilizing the device. The device is easy to operate and convenient to maintain, is especially suitable for treating wastewater which is in large quantity, is difficult to degrade and has high turbidity.

The invention provides a device for purifying sewage by utilizing a horizontal subsurface flow constructed wetland. The device comprises a horizontal spiral discharge sedimentation centrifuge, the horizontal subsurface flow constructed wetland, a nano aerated coagulation-micro-vortex flocculation device and a three-stage backwashing and screening device. The invention also discloses a method for treating the sewage by utilizing the device. The device has high treatment intensity, can adapt to sewage with different hydraulic loads, has better treatment effects on the sewage with higher volatility, deeply removes organic suspended substances and impurities in water, adsorbs inorganic harmful substances, simultaneously oxidizes residual toxic pollutants into low-toxicity or nontoxic small molecular substances, reduces the operating cost and improves the effluent effects.

The invention provides a device for purifying biologically treated sewage through nano aerated coagulation-stirred flocculation. The device mainly comprises a nano aerated coagulation-micro-vortex flocculation device, a three-stage backwashing and screening device and an outlet sump. The invention also discloses a method for treating the sewage by utilizing the device. The device has the effects of optimizing the flocculation efficiency, reducing the reagent consumption, shortening the reaction time, effectively removing pathogenic bacteria and trace organic matters in the sewage and improving the effluent quality and has the removal rate of 100%.