88 results about "Industrial emission" patented technology

The invention provides a system for comprehensive utilization of three industrial wastes, mainly relating to the field of energy conservation and emission reduction, in particular to the comprehensive utilization of the three industrial wastes; to realize the objective of energy conservation and emission reduction required by the recycle economy, a system technology targeted at comprehensive utilization of the three industrial wastes of factories is adopted; in the invention, the reactor in the nuclear plant, the boiler in the coal-fired power plant and other types of supercritical boilers are utilized to provide a new cooling and turbine drive mode to solve the issue of industrial discharge of greenhouse gas and other polluting gases; in addition, collected emissions are utilized to produce nuclear fuel, compound chemical fertilizer or feedstuff and other chemical raw materials; moreover, to realize recycling of resources and sustainable utilization of energy, the original three wastes are innovatively applied to nuclear electric power generation. The system is characterized by comprising 10 major links and the beneficial effect thereof lies in utilizing new methods to realize energy conservation and emission reduction and production cost in the late stage of production can be reduced.

The invention relates to a high pressure flow injection rapid analyzing system of water permanganate index. A pollution system comprises a heater, a cooler, a photoelectric circulation pool, a sulfuric acid storing bottle, a potassium permanganate storing bottle, a constant flow injection pump, a peristaltic pump, two sampling six-way conversion valves and a flow loading tee conversion valve which are connected into a system through capillary pipes. The sapling valve is provided with a sample quantitative ring and a potassium permanganate quantitative ring. The output end of the photoelectric circulation pool is connected with a capillary dorsal press pipe. Flow channels are switched through the conversion valves by the system. Quantitative water sample and potassium permanganate reagent are respectively switched into the continuously flowing loading solution. The processes of mixing, heating, reacting, cooling, photoelectric detecting, and the like of a sample with the reagent are finished in the continuously flowing process. The detection result is obtained. Instant analyzing data are obtained conveniently and rapidly. The system is applied to the timing or random online monitoring of the permanganate index of source water of rivers and water factories or industrial emission water, etc.

The present invention relates to an airlift type photobioreactor which solves problems of complicated structure, poor gas-liquid mixing efficiency and low microcystis fixing CO2 speed rate in the existing reactor. The reactor includes a glass tank equipped with a culture medium intake, a nutrient fluid intake, a cooling water outlet, an air intake and an air outlet, the glass tank inner side is annual equipped with multi-group recuperator tubes communicated with the cooling water intake and the cooling water outlet, an ascending conduit tube divides the glass tank into an ascending area and a descending area, the glass tank top is equipped with an air separating area, the air inlet communicates with an air distributor located on the ascending area bottom through the air inlet tube, the descending area is equipped with a nutrient fluid outer circulation pipeline, the nutrient fluid outer circulation pipeline communicates with the air inlet pipeline through a water pump. The photobioreactor has simple structure and convenient operation which is particular suitable for photosynthesis fixing CO2 with high efficiency by using microcystis in CO2 emission reduction system. The emission reduction speed rate can reach above 50%, and has low operation cost and is friendly to environment.

The present invention provides an efficient catalyst for decomposition of N2O and a preparation method and application thereof. The catalyst comprises an active center and a carrier; the active center includes quantum dot oxide and spinel-type structural compound, and the carrier is a Al2O3 carrier; and the catalyst has a molecular formula L IIxO / M II1-xNIII2O4 / Al2O3, wherein: L II and M II are divalent metal cations, N III is a trivalent metal cation, and x equals to 0.01-1.0. The efficient catalyst for decomposition of N2O has high activity, good stability and low N2O decomposition temperature, is conducive to the purification of industrial waste gas from adipic acid plant; and the catalyst for decomposing N2O can significantly reduce the N2O concentration in industrial emission, reduce air pollution and protect the environment.

The current embodiments relate to ruthenium-containing supported catalysts, including processes for their manufacture and use, which destroy, through catalytic oxidation, hazardous compounds containedin chemical industrial emissions and otherwise produced from industrial processes.

Processes, methods, system and uses in relation to chemical sequestration of carbon dioxide from a carbon dioxide containing gas by carbonation of an alkaline earth metal containing material. The carbon dioxide containing gas is contacted with an aqueous slurry in a carbonation unit for carbonation of at least a portion of the alkaline earth metal to produce a carbon dioxide depleted gas and a carbonate loaded slurry which is substantially exempt of precipitated alkaline earth. metal carbonates, The carbonate loaded slurry is then separated into an aqueous phase and a solid phase; and the aqueous phase is supplied to a precipitation unit for precipitating alkaline earth metal carbonates. The carbonation stage may be performed at a carbonation temperature between about 10° C. and about 40° C. and a carbonation pressure between about 1 bar and about 20 bars. The solid phase may be recycled to the carbonation stage.

Aquafeed, animal feed, and other food products, as well as nutritional and pharmaceutical compounds, chemicals and biomaterials are important commodities that can be produced at commercial scale by fermentation of microorganisms. The present invention provides a method for producing these valuable multi-carbon compounds from simple gas feedstocks, such as carbon dioxide, hydrogen and oxygen, by cultivating a consortium of microbial cells specially selected for this purpose in an aqueous culture medium. In addition to exploiting inexpensive feedstocks, such as waste industrial gas for this cultivation, the platform described herein also provides the advantage of removing carbon dioxide and other waste gases from industrial emissions, which would otherwise contribute to global climate change. Furthermore, the cultivation of a microbial consortium can provide highly nutritious components to a feed blend that might not be available from a monoculture.

The invention relates to a VOC (Volatile Organic Compound) concentration online monitoring device which comprises a gas sampling unit, a gas analyzing unit, a VOC real-time detection unit and a control and data processing unit. A VOC concentration online monitoring method specifically comprises the following monitoring steps of gas sampling; gas component separation and concentration detection; VOC real-time online monitoring; VOC real-time emission concentration calculation and output. According to the device and the method thereof, a gas detector for real-time detection and a gas chromatograph used for performing component analysis are combined, the gas chromatograph is utilized for determining the components of to-be-detected gas and the ratio of the components, thus to calculate and analyze a result obtained by real-time detection through the gas detector, so as to obtain the real-time emission concentration of VOCs; therefore, the device and the method thereof can perform real-time online monitoring on the concentration of the VOCs from industrial emission, and can perform qualitative and quantitative analysis on to-be-detected gas with known components; not only can the total amount of the VOCs be detected, but also the content of a specific component or a specific types of components can be obtained.

An acid industrial waste water disposal method and a system include the following steps: air is blown into the acid industrial waste water for 2 to 15 minutes as contact oxidation processing; a flocculating agent is added into the waste water for flocculation, and then air is blown again for 2 to 10 minutes, and then settlement is carried out for 0.5 to 2 minutes; bactericide is added into the obtained waste water for sterilization and air is blown into the water; the obtained waste water is filtered with multi-medium filtering process, and then the settlement is carried out for more than 1 minute; reducing agent is added into the disposed waste water and the water is filtered by active carbon and then settlement is carried out again for more than 1 minute; then the obtained waste water is filtered with a bag-filtering process, and then the water is filtered with a super-filtering process. The invention aims at providing the acid industrial waste water disposal method and the system which can economically and effectively dispose a large quantity of industrial emission acid waste water and is provide with better disposal effect.

The invention provides a method for preparing an expanded vermiculite adsorbent. The problem that the heavy metal mercury treatment is high in cost and high in difficulty in the conventional industrial emission is solved. The preparation method comprises the following steps: mixing expanded vermiculite of 60-250 meshes in a 0.5-6mol/L acidic solution under the stirring condition according to a ratio of 1 to (5-25); stirring under the condition of 20-100 DEG C for 90-130 minutes to obtain a stirred mixed solution; and standing the stirred mixed solution at room temperature for 1-9 hours, performing suction filtration, washing until the pH value is 6-7 preferably, and finally, performing drying treatment, thereby obtaining the expanded vermiculite adsorbent subjected to acid modification. With the adoption of the expanded vermiculite adsorbent prepared by adopting the method disclosed by the invention, the problem that the heavy metal mercury treatment is high in cost and high in difficulty in the conventional industrial emission can be solved.

The invention provides a coach body structure. The coach body structure comprises a chassis, a four-periphery framework, and a top arch framework and is characterized in that: the coach body structure is formed by riveting aluminum alloy sections; the four-periphery framework consists of a grating framework consisting of vertical columns and transverse beams; and the section of each vertical column has a shape of a hollow rectangular ring, and the short side of the rectangular ring is extended outward from two ends respectively to form two wing parts. An aluminum alloy full-integral coach body is adopted, so that the weight of the whole coach is reduced, the number of passengers is increased, fuel oil consumption is reduced, and the emission of the whole vehicle is greatly reduced; an aluminum alloy structure ensures that the service life of the coach is prolonged; the coach has the aluminum alloy structure, so that electrophoresis and rust prevention is avoided during production of the coaches, the production cost is saved, and industrial emission is reduced; and a riveting mode is adopted by the whole lightweight coach body structure, so that complex and expensive welding equipment is not needed any more and production cost is saved.

The invention provides a system for converting urea into reactants useful for removing NO_X from industrial emissions. The system includes a urea inlet, a steam inlet, and a reactor in fluid communication with the urea inlet and the steam inlet. The reactor is configured and adapted to inject urea from the urea inlet into a steam flow from the steam inlet to convert the urea into at least one reactant for NO_X reduction within a substantially gaseous mixture. The invention also provides a method of converting urea into reactants for reducing NO_X out of industrial emissions. The method includes injecting urea into a steam flow to convert the urea into at least one reactant for NO_X reduction within a substantially gaseous mixture.

The invention relates to an integrated bag-type dust removal and fluidized adsorption device. The integrated bag-type dust removal and fluidized adsorption device comprises a dust bin, a box body and a dust cleaning device, wherein the box body is divided into one or more chambers; a plurality of bag filters for removing dust are arranged in each chamber; a fluidized bed is arranged in the dust bin and the box body; the fluidized bed is provided with a discharge pipe, a flue gas collection box, a gas distribution plate and a lift pipe in sequence from the bottom up; the equivalent diameter of the lift pipe is 1 to 15 percent that of the box body; one side at the lower part of the lift pipe is connected with a feed pipe; the upper part of the fluidized bed is connected with a gas-liquid separator through a smoke exhaust pipe; and flue gas, in which the dust is removed by the bag filters, enters the flue gas collection box through a flue gas pipeline and fluidizes absorbent in the lift pipe through the gas distribution plate, and the absorbent is used for adsorbing gaseous pollutants. The integrated bag-type dust removal and fluidized adsorption device has the advantages of simple structure, convenience and reliability in operation, no secondary pollution and no water consumption. Meanwhile, the integrated bag-type dust removal and fluidized adsorption device can effectively remove the gaseous pollutants such as particles, SO2, NOx and Hg as well as various poisonous and adverse organic industrial emissions and has good dust removal and adsorption effects.

The invention discloses a collecting and disposing system of urban and industrial waste gas, which comprises a sewer pipeline. The invention is characterized in that the collecting and disposing system of urban and industrial waste gas also comprises a waste gas collecting pipeline which is arranged on the ground surface, and a mainline waste gas pipeline and a branch waste gas pipeline which are embedded underground; the mainline waste gas pipeline and the branch waste gas pipeline are provided with a fan respectively; the branch waste gas pipeline is connected on the mainline waste gas pipeline; the branch waste gas pipeline is connected with the waste gas collecting pipeline on the ground surface by a connecting pipeline; the connecting pipeline is inserted on the branch waste gas pipeline; furthermore, the outlet of the connecting pipeline inserted in the branch waste gas pipeline is provided with an anti-backtwist device. The waste gas collecting and disposing system of the invention carries out uniform collecting, concentrative disposing and concentrative exhausting on the waste gas exhausted by urban and industry, is convenient for monitoring the waste gas exhausting, and effectively reduces the cost of the waste gas disposal.

The invention belongs to the technical field of environment monitoring and in particular relates to an ultralow emission smoke particulate matter concentration online monitoring device and method. Thedevice mainly comprises a large flow in-situ heating, tracing and sampling system, a heat tracing transmission pipeline, a smoke and dust concentration rapid measuring device, a gravimetric method smoke trapping and weighing device, a condensation system, a smoke effective flow rate measuring system, a drainage and gas supply system, an instrument and control system and a tertiary vibration attenuation device; methods such as large flow in-situ heating isokinetic sampling, high temperature heat tracing transmission, gravimetric method dust weight measuring and a hot air drying filter membraneare adopted, measurement accuracy is high, structure is simple, and particular matter concentration in flue gas can be monitored online and accurately; and the device provided by the invention can effectively eliminate influence of moisture in the flue gas on particular matter concentration detection and can continuously, online and accurately detect the particular matter concentration in the flue gas. Therefore, the device provided by the invention is applicable to occasions with industrial smoke emission, such as a thermal power plant.

The invention discloses a method and shifting unit for processing chemical-industrial emissions, belonging to the technical field of chemical-industrial environmental protection, which is used for solving the problems of disorder emission of pollutants, such as blowing-sweeping emission, emergency emptying and the like of chemical-industrial devices. According to the invention, gravity settlement, centrifugal separation and cooling separation methods are adopted to carry out gas-liquid-solid separation on the emissions, so that waste liquor and waste residue are drained according to classification; a solvent absorption method, an adsorption method and a dilution and diffusion method are adopted to carry out purification processing on drained tail gases and then the tail gases are drained according to the standard. The method and shifting unit for processing the chemical-industrial emissions also have the functions of additive-mixing, silencing and gas-conducting. According to the invention, processing equipment and connecting pipes among equipment are properly connected and then are mounted on a public chassis to form an overall device; and the overall device is combined with a shifting facility, so that the overall device can rapidly shift and be used. The method and shifting unit for processing the chemical-industrial emissions have the advantages of strong universality, good processing effect and low operating cost; some disorder emissions of the chemical-industrial devices are relatively perfectly changed into controlled order emissions; and an effective guarantee for the safe and clean production of the chemical-industrial devices is provided.

The invention discloses a process of preparing synthetic natural gas by carbon black tail gas. After the carbon black tail gas is subjected to blowing, dust removal and CO conversion, CO and vapor in the carbon black tail gas are converted into H2 and CO2; the carbon black tail gas is then subjected to cooling dewatering, sulfur removal and pressurization, methanation is performed; methane concentration is performed to obtain the synthetic natural gas after cooling, dewatering and drying. The process has the advantages that the process of preparing the synthetic natural gas by industrial-scale carbon black tail gas is provided for the first time, and recovery of industrial emission, energy conservation, emission reduction and turning waste into wealth are achieved; the heat, vapor and sulfide in the carbon black tail gas are utilized, heating, vapor supplementing and cooling are not required, and the process is simple; a great amount of heat is released during conversion and methanation, heat of operating units is comprehensively utilized through reasonable design, external supply of heat is not required, and byproduct high-quality steam is also produced; high-purity methane products can be produced and are processed into CNG, LNG or urban gas and can also be processed into chemical materials.

The invention belongs to the technical field of environmental protection and industrial emission reduction and provides an application of zero-valent iron-loaded biochar in wastewater treatment. According to the application, zero-valent iron-loaded biochar is added into wastewater containing metal ions, wherein the wastewater is electroplating wastewater or a mixture of the electroplating wastewater and organic wastewater, the reduction potential of the metal ions is higher than that of zero-valent iron, the metal ions are reduced into elementary substances by the nano zero-valent iron, the elementary substances and elementary substance iron on the biochar form a multi-metal composite material, and organic matters are efficiently catalyzed to be degraded; and meanwhile, the electroplatingwastewater and the organic polluted wastewater are mutually diluted, so that the aim of treating wastes with wastes is fulfilled; the zero-valent iron loaded biochar has magnetism, can be convenientlyrecycled by an electromagnet, and still has good treatment capacity after being repeatedly used. The application of the zero-valent iron-loaded biochar in wastewater treatment achieves a good effectin wastewater treatment; and the material has magnetism and is easy to recycle, so that the zero-valent iron-loaded biochar has a good application prospect.

The invention discloses an industrial emission volatile organic compounds (VOCs) tail gas on-site detecting evaluation device and a method, and belongs to the technical field of environment protection and air pollution control. The evaluation device is characterized by comprising a pre-treatment device, a catalytic combustion device, an adsorption/desorption device, a heat coupling device, a solvent separating device, an on-line analysis device and pipelines. The pre-treatment device comprises a filter, a surface air cooler, a booster fan and a gas mass flow meter. The catalytic combustion device comprises a preheating pipe and a reacting pipe. The adsorption/desorption device comprises an adsorption pipe A, an adsorption pipe B, a steam heater, a steam pocket and a circulating metering pump. The heat coupling device comprises a filter and a heat coupler. By the device and method disclosed by the invention, working conditions of enterprise tail gases are directly evaluated and researched in situ; according to the analysis evaluation result, the VOCs treatment technology which is most suitable for the working conditions of the enterprise is selected; the present most troubling technical problem on the aspect of treating the enterprise gases with VOCs waste gas emission is solved.

The invention relates to the technical field of environmental protection and in particular relates to a method for treating metallurgy wastewater with high content of chrome alum and ammonia nitrogen and recycling resources. The method comprises the following steps: heating the wastewater to 30-80 DEG C; adding a reducing agent accounting for 2-8% of the wastewater amount and reacting for 10-30 minutes; adding an alkaline solution and adjusting the pH value of the wastewater to 11-12; removing the ammonia nitrogen by a blow-off method for 4-8 hours at the temperature of 30-50 DEG C according to a gas-liquid ratio of 1500 to 2500; filtering and precipitating, collecting precipitate, and adding CO2 to adjust the pH value of the wastewater to 7-9; adding zeolite accounting for 3-10% of the wastewater amount and reacting for 30-120 minutes. The reducing agent adopts sodium sulfite and is stable in property and free of toxicity and harmless; the wastewater is adjusted to be alkaline by a lime-alkali solution, so that the operation cost is low; the content of chromium in the filter cake after filtering is greater than 35%; the ammonia nitrogen is removed by the blow-off method, so that the removal rate can reach over 90%; the zeolite is taken as an adsorbent; the process is simple; the reaction process is stable; the low-concentration metal ions and the ammonia nitrogen are removed; the discharged water can reach the specific industrial emissions standard in China.

The invention provides a pollutant source analysis method and device, belonging to the technical field of pollution source analysis. The method comprises the following steps: determining the dischargeamount of a pollutant in a preset time range of each industry category based on pollution source list data; determining the contribution ratio of a primary pollutant in each industry category to thepollutant according to the discharge amount of the primary pollutant and a pre-determined primary pollution source analysis result; according to the discharge amount of a secondary pollutant precursorand a pre-determined secondary pollutant source analysis result, determining the contribution ratio of secondary pollutant species in each industry category to the pollutant; determining the contribution ratio of each industry category to the pollutant according to the contribution ratio of the primary pollutant in each industry category to the pollutant and the contribution ratio of the secondary pollution species in each industry category to the pollutant; and through combination of the contribution ratio of each industry category to the pollutant with a receptor model and a pollution source list, establishing a pollution source contribution system of secondary sources, primary sources and various industries. Thus, a source analysis result output by the receptor model can guide industrial emission reduction measures.

The invention relates to a combined treatment method for industrial emissions, and belongs to the technical field of aftertreatment. In the method, combined treatment is conducted on waste water, waste gas, noise and immobilized waste emitted by polymeric ferric sulfate, polymeric aluminum chloride and waste oil recovery processes. Compared with the prior art where independent treatment is adoptedfor the polymeric ferric sulfate, polymeric aluminum chloride and waste oil recovery processes, the method has the advantages that the three waste treatment processes are uniformly set in the same production area, and secondary industrial emissions emitted by the processes are uniformly treated, so that monitoring of the equipment working condition is facilitated, the cost is reduced, and environmental pollution is reduced.

The invention discloses a papermaking wastewater treating agent, which belongs to the technical field of wastewater treatment. The treating agent is prepared by the steps of adding metal catalyzed ions to attapulgite and then modifying the metal catalyzed ions. The attapulgite is taken as a packing after being modified and is placed in an adsorption tower to adjust the pH value of wastewater to 6.5-7.5, the wastewater passes through the adsorption tower at a flow speed of 10-15 L/min, and the COD (Chemical Oxygen Demand) of effluent can reach an industrial emission standard. The treating agent has the advantages of wide application range, high deposition rate, high effluent quality, low treatment cost, no corrosion effect on a steel structure, no toxicity, no pollution, safe application and the like. The papermaking wastewater treating agent can also be applied to treatment of various wastewater from oil fields, coal mines, textile mills and the like.

The invention relates to a heat-relieving device for industrial emission, comprising a shell with an immission pipe and an emission pipe, wherein the side wall of the shell is fixedly installed with a motor, a bearing is fixedly installed in the immission pipe, the front end of an output shaft of a motor is inserted to an inner hole of the bearing, a wind wheel with vanes on the side wall is fixedly installed on the output shaft of the motor, a plurality of air guide pipes communicated with an inner cavity of the shell are arranged on the outer wall of the shell, and the orientations of the air guide pipes are opposite to the rotation direction of the wind wheel. An outlet of the immision pipe extends into the wind wheel, and long strip-shaped drain grooves are arranged on the vanes of the wind wheel. The output shaft of the motor is a pipe body with a closed front end, and a plurality of spouts are arranged on the side wall of the output shaft of the motor. The heat-relieving device is mainly used for carrying out heat relief to gas and liquid in industrial production, achieves the purpose of rapid cooling by atomizing high-temperature liquid or spraying cooling water to high-temperature gas for atomization and simultaneously introducing cold air, effectively stops the generation of heat pollution to protect ambient ecological environment, thereby being worthy of great popularization.