120 results about "Carbon filtering" patented technology

The invention relates to a zero-release recovery method for electroplated sewage, which comprises: leading the treated tree kind sewages of the copper-contained, the chrome-contained and the cyanogen-contained from sewage reaction pond into solid-liquid separation device for primary separation; after filtering with filter column, using ion exchange device to treat the nickel-contained sewage; and filtering the pretreated sewage through sand filter and carbon filter by turns. This invention is stable and reliable and convenient to control, and needs low cost.

The invention discloses a centralized combustion type in-situ thermal desorption repair device for polluted sites, which comprises combustion heat transfer and waste heat recovery unit, extraction condensation and gas-liquid separation unit, underground water flow control unit, soil gas control unit, waste gas Treatment unit, waste water treatment unit. Combustion heat transfer and waste heat recovery unit includes hot blast stove, air-to-air heat exchanger, blower, induced draft fan, exhaust pipe, and heating well group. The extraction condensing and gas-liquid separation unit includes extraction wells, heat exchange condensing equipment, gas-liquid separation equipment, demister tower, and vacuum pump. The groundwater flow control unit stops the water curtain. The soil gas control unit is a concrete layer. The exhaust gas treatment unit contains adsorption equipment and fans. The wastewater treatment unit includes a regulating tank, a combination tank, sand filter equipment, carbon filter equipment, and a water outlet tank. The centralized combustion type in-situ thermal desorption repairing device for polluted sites provided by the invention can overcome the shortcomings of the prior art and achieve better repairing effects.

The invention provides a deep treatment method for landfill leachate. The method is characterized by specifically comprising the following steps of: sequentially carrying out electrolytic treatment in ferric carbon, fenton oxidation treatment, coagulation precipitation treatment, biological activated carbon filtering treatment and ozone catalytic oxidation treatment on the landfill leachate, and discharging water. According to the deep treatment method, partial pollutant can be directly removed from the ultra-filtrated discharged water when the landfill leachate is treated due to the oxidizing and reducing functions of the electrolysis in the ferric carbon and the fenton reagent respectively, the molecular structure of the pollutant which is hard to degrade can be destroyed, and the biodegradability of wastewater can be improved; and the pollutant which can be biochemically treated can be further removed by a biological carbon filtering pool, the pollutant which is hard to degrade can be finally removed due to the ozone catalytic oxidation, and the discharged water can be guaranteed to reach the standard stably. The deep treatment method has the advantages of being low in investment and operation cost, stable and good in treatment effect, free from secondary pollution and the like.

The invention discloses a technology for producing deuterium-depleted water and a method for producing deuterium-depleted water thereby. According to the method, hydrogen which is a byproduct of chlor-alkali industry is washed with water and cooled at a low temperature, then enters a hydrogen burner through a pipeline, is mixed with oxygen and then is burned in a hydrogen burning boiler, the heat released during the combustion of hydrogen is used for producing steam, the water generated during the combustion of hydrogen enters a cooling condensing system for cooling and condensing, and the obtained deuterium-depleted water is stored in a crude deuterium-depleted water storage tank (5); and the deuterium-depleted water in the crude deuterium-depleted water storage tank is processed by the steps of sand filtering, carbon filtering, microfiltration, ultrafilteration, reverse osmosis, refined filtration and sterilization in a water purification system and then is canned by a canning machine and finally the canned deuterium-depleted water is transported outwards to the markets. The hydrogen (a byproduct of chlor-alkali industry) is burned with oxygen to produce deuterium-depleted water with very high value. The method is low in energy consumption, has low cost, can be put into large-scale industrial production of the deuterium-depleted water, improves the quality of drinking water for people, meets the heavy demand of the mass on the deuterium-depleted water, and has good social and economic benefits.

A leakage detection device of oil -gas piping is composed of a leakage detection tube made of acetate film having selective permeation feature, drying unit with silica gel dryer and carbon filter at one end of tube and monitoring station at another end of tube. Its detection method includes detection natural gas and petroleum vapour by leakage detection tube, using air flow to bring petroleum vapour to monitor station through the tube and using hydrocarbon detector to determine vapour concentration in said station as well as sending out leakage alarm in digital output form if it is necessary.

The invention discloses a coking waste gas treatment device, which mainly comprises a first treatment box and a second treatment box, wherein the first treatment box is provided with a gas inlet pipethrough which coking waste gas enters the device, and an active carbon filtering plate and a semi-coking carbon filtering plate through which the waste gas sequentially pass through are arranged in the first treatment box; the second treatment box is communicated with the first treatment box through a first connecting pipe and is used for decomposing the coking waste gas through a UV photolysis lamp tube. In the practical use process, the coking waste gas to be treated is introduced into the first treatment box through the gas inlet pipe, sequentially passes through the active carbon filteringplate and the semi-coking carbon filtering plate so as to adsorb dust and ash slag in the coking waste gas; then, the coking waste gas enters the second treatment box; through the UV photolysis lighttube, the coking waste gas is thoroughly decomposed so as to improve the purification treatment effect. Therefore the coking waste gas treatment device provided by the invention can improve the purification degree of the coking waste gas; the harm to environment and human bodies can be avoided; the problems in the field in the current stage can be solved.

The present invention belongs to the field of sea water desalting technology. The pre-treatment process includes the technological steps of treating sea water successively in medium filtering unit, carbon filtering unit, precise filtering unit, ultrafiltering unit and nanometer membrane unit; and makes water reach the requirement of liquid flow type capacitive sea water desalter. The pre-treatment process can eliminate most of the hard ions in sea water and lower the concentration of water, so as to prevent scaling in sea water desalter, prolong the service life of sea water desalter, raise the efficiency of sea water desalter and lower cost of desalting sea water.

Disclosed are an air purifier with a warning function and a manufacturing method of the air purifier. A primary purifying chamber is formed in the lower portion of the air purifier, a gel cotton filtering layer and a dirt detection head are arranged in the middle of the primary purifying chamber, a first honeycombed supporting plate, an air filtering cotton filter, a second honeycombed supporting plate, an activated carbon cloth filter, a third honeycombed supporting plate and a formaldehyde filter screen are sequentially arranged in the air purifier from bottom to top, a first terminal air purifying box, an air purifying carbon filtering layer, a catalytic activated carbon filter screen, a second terminal air purifying box, a coconut shell columnar activated carbon filtering layer and an HEPA filter screen are further sequentially arranged at the upper portion of the formaldehyde filter screen, an air exchange chamber is formed in the back face of the upper portion of the air purifier, and an air exchanger fan and an external fan cover are arranged on a round hole between the air exchange chamber and a shell body. A warning part for dirt removal and filtering layer replacement is arranged on a square hole in the left side of the upper portion of the air purifier. An air outlet is formed in the air exchange chamber in the back face of the air purifier and an air inlet is formed in the lower portion of the air purifier.

The invention discloses a straw filtering method for treating blue-green alga. Straw is used as a filtering layer, and water containing blue-green algae is filtered through the straw layer, so that blue-green alga can be filtered; the straw filtering blue-green algae is dried in the sun and carbonized into biological carbon used as a biological filtering layer, and the water passing through the straw layer is filtered through the biological filtering layer, so that algal poison can be adsorbed. The invention also discloses a special device, which comprises a double-layered filter, a water outlet tube and an electric heating wire heating carbonization furnace; the double-layered filter comprises an upper straw filtering layer and a lower biological carbon filtering layer; the water outlet tube is connected with a water pump, and is used for pouring pumped blue-green alga-polluted water on the double-layered filter; and the electric heating wire heating carbonization furnace is used for carbonizing the straw which finishes filtering blue-green algae into biological carbon. The consumed energy is clean solar energy, the straw does not need to be burnt in the field during harvest time, the blue-green alga problem of lake water is solved as well, moreover, the straw also can be processed into usable biological carbon coal, and thereby certain economic benefit is achieved.

The invention provides a preparation method of a lithium mineralized composite sintered active carbon filtering core based on natural rock. The preparation method comprises: respectively modifying natural spodumene, natural serpentine, natural lepidolite and natural green zeolite to obtain modified spodumene, modified serpentine, modified lepidolite and modified green zeolite; weighing the modified spodumene, the modified serpentine, the modified lepidolite, the modified green zeolite, active carbon and a binder, and uniformly mixing to obtain a solid mixture; and sintering the solid mixture to obtain an active carbon filtering core. According to the present invention, the activae carbon filtering core can stably increase the lithium element content in drinking water, supplement the dailyneeds of human body, and avoid the adverse effect of the too low lithium content in water to human body.

The invention discloses a rapid detection method of the effect of the bromphenol endocrine disrupters, comprising the following steps: A. culturing cells, adopting insulin Fe-Se transferring protein as growth promoter and using carbon filtering serum Nu-Serum which does not contain hormone, and exposing for 46-50 hours; B. selecting the exposure dose to be 0.1, 1 and 10 mu m to ensure 100% of survival rate of cells, and determining the endocrine disrupting effect of bromphenol; C. extracting RNA and carrying out reverse transcription on RNA into cDNA; and D. detecting gene expression variety of enzyme in the synthesizing process of steroid by utilizing fluorescent quantitative PCR technology, therefore, the technology can realize evaluation on the environmental samples. In low-dose exposure, important genes relative to steroid hormone metabolism in H295R cells are influenced; the method has high sensitivity and can detect the dose lower than 0.1 mu m; the sampling processing has simple procedures with no need of exceptionally costly instruments; the invention can be cultured in 96 pore plates with low cost, and a plurality of samples can be detected simultaneously, thus being applicable to the detection of environmental brominated flame retardant endocrine disrupting effect in environment protection departments and scientific research units.

The invention discloses a method for filtering, concentrating and recycling water drained from an anaerobic fermentation pond of a livestock and poultry farm. The method for filtering, concentrating and recycling the water drained from the anaerobic fermentation pond of the livestock and poultry farm includes the following steps: S1, gathering waste water generated after anaerobic fermentation is carried out on excrement and urine in the pig farm, wherein the excrement and the urine in the pig farm and washing water are mixed to enter the anaerobic fermentation pond, and the water drained after anaerobic fermentation is carried out is filtered through sand to be gathered to enter a waste water pond; dry distillation is carried out on left residues, and livestock excrement active carbon, livestock excrement carbon and fuel gas formed by carrying out splitting decomposition on livestock excrement mixtures are obtained after dry distillation is carried out; S2, carrying out dual coarse filtering, wherein the waste water in the waster water pond is pumped by a water pump through a pipe valve into a front coarse filter element and a back coarse filter element to be coarsely filtered; S3, carrying out carbon filtering and fine filtering, wherein the filter liquor obtained after dual coarse filtering flows into a carbon filter element and a fine filter element for carbon filtering and fine filtering; S4, carrying out ultra-filtering, wherein the filter liquor obtained after carbon filtering and fine filtering flows into an ultra-filtering device for ultra-filtering, and the filter liquor obtained after ultra-filtering flows into a middle water tank; S5, carrying out standing, and discharging liquid; S6, carrying out low-pressure and high-pressure nano-filtering; S7, carrying out back washing, wherein back washing water flows into the middle water tank.

The invention belongs to the technical field of water pollution treatment of environmental engineering and particularly relates to an oil processing wastewater treatment process and a device thereof.The treatment process comprises the following steps: discharging oil wastewater into a water collection pond from a workshop, treating the oil wastewater through a coagulation sedimentation tank, an air flotation device, an intermediate water pond, an anaerobic tank, an anoxic pond, an aerobic pond, a secondary sedimentation pond, a biological aerated filter pond, a sand filtering pond and a carbon filtering pond. The oil processing wastewater treatment process fully considers the influence of impact load and is stable in treatment effect, low in cost and excellent in treatment effect; the content of COD (chemical oxygen demand) in the treated water is less than or equal to 30mg/L; the pH is about 7; the content of SS is low; the invention also provides the device for implementing the process; the device is reasonable in layout, compact in structure, convenient to operate and manage and excellent in treatment effect; the occupied area is reduced; the cost is reduced; the operation costcan be reduced to a maximum limit; the treatment device is simple in structure.

The invention discloses a site emergency deep treatment device and a technology for oil-containing emulsifying liquid wastewater. The treatment device comprises a drug dissolving tank, a primary coagulating tank, stirrers, a primary settling tank, a secondary coagulating tank, a secondary settling tank, a sand filtering tank, a carbon filtering tank, a clean water tank, a sludge concentrating tank and a sludge drying tank, wherein the primary coagulating tank, the primary settling tank, the secondary coagulating tank, the secondary settling tank, the sand filtering tank, the carbon filtering tank and the clean water tank are sequentially connected; the stirrers are arranged in the primary coagulating tank and the secondary coagulating tank. The treatment device has the advantages that the treatment device is used for deeply treating the emulsifying liquid wastewater and the emulsifying liquid-polluted surface water; by adopting the two-stage composite coagulating and settling treatment technology, the removal rates of COD (chemical oxygen demand) and petroleum in the water can reach 95% or above, and the drained water meets the requirements of Class III standards in Environment Quality Standard of Surface Water (GB3838-2002). The technology has the advantages that the quality of drained water is good, the operation is simple and convenient, and the like; the technology is suitable for the deep treatment on the emulsifying liquid wastewater and the site emergency treatment on the emulsifying liquid-polluted surface water.

The invention discloses a treatment method for a nanofiltration membrane central water purification system. A raw water tank is connected with a water inlet opening of a quartz sand filter through a raw water pump; a water outlet opening of the quartz sand filter is connected with an ozone contact tower; an ozone gas inlet opening formed in the bottom of the ozone contact tower is connected with an ozone generator through a high-pressure fan; a water outlet opening of the ozone contact tower is connected with a water inlet opening of an active carbon filter through a carbon filtering pump; a water outlet opening of the active carbon filter is connected with a middle water tank; a water outlet opening of the middle water tank is connected with a fine filter through a pressurizing pump; a water outlet opening of the fine filter conveys water into a nanofiltration membrane filter through a high-pressure pump; a water outlet opening of the nanofiltration membrane filter is provided with an ultraviolet sterilization lamp, and is connected with a finished product water storage tank through a water outlet pipeline of the ultraviolet sterilization lamp; two branch pipes are arranged at a concentrated water outlet of the nanofiltration membrane; the first branch pipe is connected with a concentrated water recycling device; and the second branch pipe is connected with a water inlet opening of the raw water pump. The treatment method has the advantages that the chlorine resistance and the oxidative resistance of the composite nanofiltration membrane are improved by 5 times or higher; the water flux of the composite nanofiltration membrane is improved by 20 to 50 percent; the contamination-resistant performance of the composite nanofiltration membrane is improved by two times or higher; and the water yield of the central water purification system is improved to 70 percent or higher.

The invention discloses a high-water-yield treatment method for boiler feed water. The high-water-yield treatment method comprises the following steps of (1), conveying all washing wastewater of sand filtering, carbon filtering and ultrafiltration systems into a washing water tank, and removing organisms of an alga and the like in the washing wastewater under the action of an ultraviolet sterilization device in a pipeline; (2), afterwards, making the washing wastewater pass through a high-density sedimentation pool; (3), afterwards, making the washing wastewater pass through a high-flux security filter and enter a newly added ultrafiltration system again for treatment; (4), making concentrated water produced by the primary reverse osmosis and the secondary reverse osmosis in a membrane-method power-plant boiler water treating device enter a newly added ultrafiltration water producing box and mixed with the wastewater treated through the newly added ultrafiltration system in the step (3), making mixed wastewater enter an electrodialysis reversal device, decreasing the salt content of the wastewater to make the wastewater meet the inlet water requirement of a reverse osmosis device, making outlet water of an electrodialysis reversal desalination chamber enter the ultrafiltration water producing box to carry out cyclic treatment, and outwards discharging outlet water of an electrodialysis reversal condensation chamber. The utilization rate of raw water is improved in a process; the device is simple in structure; the capital expenditure is low.

The invention provides a flexible air-oxygen pressurized chamber. The flexible air-oxygen pressurized chamber comprises a chamber body which is a flexible sealed airbag. An accommodating space is formed in the chamber body, and an inflatable air cushion can be arranged in the accommodating space. The chamber body is provided with flat conical inlet interfaces, a deflation valve, an overflow valve, internal and external pressure gauges and a transparent window. The flexible air-oxygen pressurized chamber further comprises a user access port sealed with a double-layer nylon zipper. An insert-combined type support is arranged outside the chamber body in a matched mode. A cylindrical supporting inflatable airbag preventing lateral movement of the chamber body is arranged on the lower portion of the support. The flexible airbag of the chamber body is formed through heat sealing from a TPU composite airtight material. An air supply system connected with the multiple inlet interfaces is arranged outside the chamber body, and a silent oil-free compressor, a carbon filter, an oxygen generator, an anion generator, an air pressure regulating device and an oxygen concentration detecting device are arranged in the air supply system. The flexible air-oxygen pressurized chamber can be folded easily, is convenient to carry, has good airtightness, and is safe and convenient to use.

The invention relates to the technical field of formaldehyde purification equipment, and discloses a household air formaldehyde purification equipment, comprising a base and a box body, the box body is fixedly connected to the upper surface of the base, and the top of the right side of the box body is provided with a Dust collection hood, the first connecting pipe is installed on the left side of the dust collection hood, the left end of the first connection pipe away from the dust collection hood passes through the right side of the box body and is connected with the exhaust fan installed on the inner wall of the top of the box body The suction port is fixedly connected. The household air formaldehyde purification equipment, through the installation of the first adsorption carbon filter, air purifier, second adsorption carbon filter, formaldehyde gas sensor and exhaust pipe, triple purification of formaldehyde gas in the air, so that the purification Thoroughly, at the same time cooperate with the formaldehyde gas sensor and the exhaust pipe to purify the air that has not been completely purified, so as to achieve the effect of thorough purification and prevent formaldehyde from causing harm to people.

A flue dust tail gas photolysis oxyhydrogen cycle purifying combustion energy-saving and zero-emission method designed in the invention adapts a technical device used for flue dust tail gas of fire coal, fuel oil and combustion gas to realize purifying combustion energy-saving and zero-emission. The method comprises the following steps: flue dust or tail gas of fire coal, fuel oil and combustion gas devices is effectively cooled, and is sucked to a hydrolysis, neutralization, carbon removal and filtration system of the device, and carbon illumination oxygen production is realized in the composite photolysis oxyhydrogen generation process in order to realize the cycle purifying combustion method of the flue dust tail gas. The device has a CO2 and flue dust particle filtering elimination function, also has carbon illumination oxygen production and photoelectrolysis oxyhydrogen generation functions, and allows fire coal, fuel oil and combustion gas boilers and engines to realize true energy saving and zero emission of the cycle purifying combustion of the flue dust tail gas.

The invention relates to a system for preparing purified water. The system comprises a water storage tank, wherein the water storage tank is sequentially connected with a full-automatic sand filtering device, a full-automatic carbon filtering device and a full-automatic ultrafiltration device; an electric heating device and a temperature sensor are arranged in the water storage tank; a constant temperature tank with a sandwich structure is connected between the water storage tank and the full-automatic sand filtering device, a hot water pipeline is arranged on the sandwich structure of the constant temperature tank, and a booster pump is arranged at the water inlet end of the full-automatic ultrafiltration device; the full-automatic ultrafiltration device is connected with a purified water tank I and a purified water II, the purified water II is provided with a clean water delivering pipe and a water return pipe, the water return pipe is provided with a by-pass pipe, and the by-pass pipe is provided with a water quality testing device. With the adoption of the system, the problem that the quality of products is influenced as the probability of pollution to pipelines in a clean region is high which is caused by the fact that the traditional water treating system is slow in filtering speed, is solved.

The invention relates to a composite biological carbon filtering device, and belongs to a water treatment device. The device comprises a shell (1), wherein a water storage tank (2) is arranged above an inner cavity (1a) of the shell; an outlet (3) is formed on the upper part of the water storage tank; a water outlet on the lower part of the shell is connected with a water outlet pipe (4); the water outlet pipe (4) is communicated with a water inlet (6) on the lower part of the water storage tank (2) through a water pipe (5); a water distribution pipe (8) connected with a water inlet pipe (7) is arranged on the upper part of the inner cavity (1a) of the shell; a biological activated carbon filtering layer (9), a supporting layer (10) and a secondary filtering layer (11) are arranged below the water distribution pipe (8) from top to bottom in turn; a perforated water distribution pipe (13) connected with an air inlet pipe (12) is arranged in the supporting layer (10); an air pipe (14) communicated with the inner cavity (1a) of the shell is arranged on the upper part of the shell; and the water inlet pipe (7) is connected with a backwashing water discharge pipe (15). The device can improve effluent quality, has a reasonable structure, can realize automatic backwashing by using the filtered water, and is easy and convenient to operate.