125 results about "Carbon filtering" patented technology

An apparatus and method for recovering wastewater from laundry operations. A substantially closed loop series of tanks, conduits and pumps hold and transfer water output from a wash machine through a series of filters, including a lint pulloff filter, a multimedia pressure filter, a clay filter, and a carbon filter. The water is ozonated to coagulate suspended solids and to disinfect and is subjected to ultraviolet light to disinfect and to reduce residual ozone.

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 concentrated combustion type in-situ thermal desorption repairing device for a contaminated site. The concentrated combustion type in-situ thermal desorption repairing devicecomprises a combustion heat transferring and waste heat recovery unit, an extraction condensation and gas-liquid separation unit, an underground water flow control unit, a soil gas control unit, a waste gas treatment unit and a waste water treatment unit. The combustion heat transferring and waste heat recovery unit comprises an air heating furnace, a gas-gas heat exchanger, an air blower, an induced draft fan, an exhaust funnel and a heating well group. The extraction condensation and gas-liquid separation unit comprises an extraction well group, heat exchanging and condensation equipment, gas-liquid separation equipment, a demist tower and a vacuum pump. The underground water flow control unit is a waterproof curtain, the soil gas control unit is a concrete layer, the waste gas treatment unit comprises adsorption equipment and a draught fan, and the waste water treatment unit comprises an adjusting pool, a combination pool, sand filtering equipment, carbon filtering equipment and awater outlet pool. According to the concentrated combustion type in-situ thermal desorption repairing device for the contaminated site, defects of the prior art can be overcome, and a better repairingeffect is achieved.

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.

The invention discloses a concentrated combustion type in-situ thermal desorption repairing method for a contaminated site. A concentrated combustion type in-situ thermal desorption repairing device is arranged and used for conducting repairing. The concentrated combustion type in-situ thermal desorption repairing device comprises a combustion heat transferring and waste heat recovery unit, an extraction condensation and gas-liquid separation unit, an underground water flow control unit, a soil gas control unit, a waste gas treatment unit and a waste water treatment unit. The combustion heat transferring and waste heat recovery unit comprises an air heating furnace, a gas-gas heat exchanger, an air blower, an induced draft fan, an exhaust funnel and a heating well group. The extraction condensation and gas-liquid separation unit comprises an extraction well group, heat exchanging and condensation equipment, gas-liquid separation equipment, a demist tower and a vacuum pump. The waste gas treatment unit comprises adsorption equipment and a draught fan, and the waste water treatment unit comprises an adjusting pool, a combination pool, sand filtering equipment, carbon filtering equipment and a water outlet pool. According to the concentrated combustion type in-situ thermal desorption repairing method for the contaminated site, defects of the prior art can be overcome, and a betterrepairing effect is achieved.

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 present invention provides production process and system of piped drinking water. The water purifying treatment process includes sand filtering treatment, active carbon filtering treatment, water softener treatment, microfilter treatment, fine filter treatment, pressurizing, filtering with nanofiltering film and reverse osmosis film, ultraviolet ray irradiation and chlorine disinfection, and the treated water can reach the standard of drinking water. The production process and system of the present invention is suitable for various kinds of water source, especially water source with high TDS and water source with high TOC, and the purified water has proper amount of life elements maintained and high quality.

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.

Provided is an iron-carbon micro-electrolysis apparatus which comprises a housing, a water inlet on the housing and a water outlet on the housing; the area in the housing connected with the water inlet is a water inflow zone, the area in the lower part of the housing connected with the water inflow zone is an aeration zone, the area in the middle part of the housing located above the aeration zone is a filling material zone, and the area in the upper part of the housing located above the filling material zone is a water outflow zone; the water inflow zone, the filling material zone and the water outflow zone are separated from each other by baffle plates, the aeration zone is provided with an aeration pipe, and the filling material zone is filled by iron dust filtering layers and carbon filtering layers, with each iron dust filtering layer stacking on each carbon filtering layer. The invention has the characteristics of a reasonable structure, high treating efficiency and a long service life.

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.

A combination filtration and ion exchange system is provided. In one embodiment, the system includes a valve rotor, a carbon treatment tank, an ion exchange treatment tank and a valve. The valve rotor having a source water inlet, a service water outlet, a water treatment outlet, a water treatment inlet and a drain outlet. The carbon treatment tank having a service inlet and a service outlet, the service inlet coupled to the water treatment outlet. The ion exchange treatment tank having a service inlet and a service outlet, and the service outlet is coupled to the water treatment inlet. The valve having a carbon tank port, an ion exchange port, and a water treatment outlet, and a valve member having a first position and a second position, wherein in the first position, the service inlet of the ion exchange treatment tank is in fluid communication with the service outlet of the carbon treatment tank, and in the second position, the service inlet of the of the ion exchange treatment tank is in fluid communication with the water treatment outlet.

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 relates to the technical field of purifying systems for plasma reactors and more particularly relates to an air-duct type air purifying system. The air-duct type air purifying system comprises a primary-effect filtering net, an active-carbon filtering net, a fan, a non-thermal plasma reactor and a dust-proof cover, wherein the non-thermal plasma reactor comprises positive electrodes and negative electrodes; the positive electrodes are arranged in the middle parts of the two adjacent negative electrodes, and are parallel to the negative electrodes; the negative electrodes are made of aluminium plates or stainless steel plates, and the number of the negative electrodes is n+1; the non-thermal plasma reactor also comprises a first shell and a second shell which are detachably connected; the positive electrode is an assembly manufactured by equidistant and parallel arrangement of a plurality of anode bars in the same plane, and the number of the positive electrode groups is n; the positive electrodes are arranged on the second shell; and the negative electrodes are arranged on the first shell at equal interval and in parallel. The air-duct type air purifying system is simple in structure and strong in practicability.

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 method for treating pickle wastewater. The method comprises the following steps: (1) cultivating and domesticating special halotolerant bacteria; (2) feeding the pickle wastewater into a grid well to primarily eliminate suspended solids; (3) conveying the wastewater inside the grid well into a conditioning pond for physical sedimentation, and stirring so as to ensure that the water quality is balanced; (4) feeding the wastewater into an anaerobic system to be treated so as to degrade and decompose organisms; (5) feeding the wastewater into an aerobiotic biochemical system for secondary aerobic anoxic treatment, further decomposing the residual organisms by using aerobic halotolerant bacteria and anoxic halotolerant bacteria respectively, and balancing the water quality; (6) performing solid-liquid separation in a secondary sedimentation tank to settle down sludge, and performing filtering treatment in a carbon filtering tank so as to ensure that the effluent is clear in quality. The method is compact in arrangement, the land is saved, impurities such as suspended solids and organisms in the pickle wastewater are sequentially eliminated, the effect of final sewage treatment is greatly improved, and a great deal of expense for extra treatment is saved for companies.

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 device for removing the hardness in drinking water, which comprises a hydraulic chemical proportioner, a quartz-sand filtering column, a wood activated-carbon filtering column and an ultrafiltration membrane, wherein the quartz-sand filtering column, the wood activated-carbon filtering column and the ultrafiltration membrane are sequentially connected in series with a water outlet of the hydraulic chemical proportioner. The invention also discloses a method for removing the hardness in the drinking water, wherein a ferric-trichloride flocculating agent is added into the drinking water by utilizing the hydraulic chemical proportioner, the water pressure of tap water is used as power without electricity utilization, calcium ions in the water can be directly adsorbed on the surface of an oxide through the flocculating action of ferric trichloride, and a ligand can also be formed by combining functional groups of adsorbed organic-substance molecules and organic substances; and the flocculated water is then further adsorbed and filtered through quartz sand and activated carbon, the adsorption for the calcium ions is enhanced, and then colloidal substances which are generated through the filtration of the ultrafiltration membrane are discharged form the water to obtain the clear low-hardness drinking water. The removing rate of the hardness reaches more than 80 percent, and the device is simple and convenient to operate, has low cost and is applicable to the processing of home-terminal drinking water.

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 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 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.