431results about How to "Achieve emission reduction" patented technology

The invention relates to a micro-algae industrialization production device and a method of producing the micro-algae, which belong to the engineering field of the micro-algae culturing and the technical field of the environmental protection. An air-pushed type photobiology reactor unit device is an annular shallow pond built by bricks and concrete, an isolation wall with both ends opened is built in the shallow pond, a liquid drainage pipe and a liquid replacement pipe are arranged in the air-pushed type photobiology reactor unit device, an air inlet pipe is fixed on the isolation wall in the middle part of the air-pushed type photobiology reactor unit device and is connected with a plurality of L-shaped branch pipes, a plurality of micro blowholes are arranged on side walls of the transversal pipes of the branch pipes, the whole air-pushed type photobiology reactor unit device is covered by agricultural film and is provided with a skylight, to form an enclosed type photobiology reactor. The device combines the individual advantage of the open type photobiology reactor and the enclosed type photobiology reactor, by adopting the industrial waste gas and the eutrophication surface water or the industrial wastewater as the main raw material to perform micro-algae culturing in a large scale, especially to culture the micro-algae with high oil percentage, to provide the large or medium sized bio-diesel factory with raw oil, and simultaneously the emission reduction of carbon dioxide and the treatment of polluted water body are realized.

The invention discloses a method for quickly measuring the content of phosphorus, lead and zinc in industrial ferrous dust. The method comprises the steps of sample decomposition, setting the instrument analysis parameters of an ICP (Inductively Coupled Plasma) spectrometer, interference correction, making a working curve, and analyzing the content of to-be-measured elements in a measured sample by using an ICP spectral method, wherein the sample decomposition comprises sample pre-decarburizing treatment and sample pressure-microwave digestion. The invention provides a new method for improving the speed and the accuracy in a chemical test of hazardous elements in metallurgical dust.

The invention discloses a strain of chlorella, which is classified to be named as chlorella vulgaris and is preserved in China Centre for Type Culture Collection, and the preservation number is CCTCC NO.: M 209256. The invention also discloses the application of the chlorella in producing microalgae oil and fixing CO2. The chlorella can endure 24.5% of CO2 concentration, the content of grease can reach 17-31%, and the invention has higher CO2 fixing efficiency than ordinary seawater algae, and can obtain high-yield microalgae oil by selecting appropriate culture conditions, so the culture cost of the microalgae can be greatly reduced, and a good production strain is provided for preparing biodiesel by the microalgae oil.

The invention relates to a production process of a high-density carbon product, which is characterized in that the high-density carbon product comprises a high-density prebaked anode, or a high density graphitization electrode, or high-density semi graphitic carbon paste and semi graphitic cathode paste for building carbon blocks; by adopting high density carbon coke with the volume density being greater than 1.6g/cm3 as the main raw material and a large-grain high-density carbon coke whole ball adding mode, the addition amount of powder material and bonding agent coal tar is reduced, the grain structure of the carbon product is changed, and a carbon roasting product with the volume density being larger than 1.6g/cm3 is manufactured; and the production process thereof comprises the following steps of: selecting the raw material; grading the grain size, selecting the bonding agent and controlling the content of the bonding agent; mixing and kneading; shaping, roasting, dipping and graphitizing according to the conventional manufacturing method of the carbon product. By using the high-density carbon product produced by the protection process, the volume density of the carbon sizing product after being roasted is larger than 1.6/cm3, thus realizing energy saving, emission reduction, high efficiency, low investment and high yield.

The invention relates to a condensation heat recovery central heating system of a power plant indirect air cooling machine set. The invention is used for recovering surplus heat of exhaust steam of a power plant steam turbine. The system comprises a steam outlet turbine (1), a turbine steam exhaust header pipe (2), a water-cooled condenser (3), a closed cooling circulation water system (4), an indirect air condensation steam system (5), a heat utilization place (6) and a hot water supply pipeline system (7), wherein the exhaust steam of the steam outlet turbine (1) is connected with the water-cooled condenser (3) through the turbine steam exhaust header pipe (2). The system is characterized in that the heating system also comprises an absorption type heat pump machine set (8-2) and a surplus heat water circulation pipeline system (9); the closed cooled circulation water of the water-cooled condenser (3) is divided into two paths, one path is connected with an evaporator of the absorption type heat pump machine set (8-2) through the surplus heat water circulation pipeline system (9), and the other path is connected with the indirect air condensation steam system (5); and a hot water supply outlet of the absorption type heat pump machine set (8-2) is connected with the heat utilization place (6) through the hot water supply pipeline system (7). The heating system can efficiently recover and utilize the low-grade condensation heat of exhaust steam of an indirect air cooling power plant.

The invention discloses a castable used for an industrial furnace lining and a producing process thereof, and particularly relates to a quick-drying explosion-proof castable used for an industrial furnace lining and a producing process thereof. The producing process comprises four steps of raw material purchasing and testing, burdening, mixing and packaging. The producing process of the invention has the advantages of realizing quick-drying (rapid hardening) and fast stripping of the castable, and rapid baking without burst or explosion. With greatly shortened construction time and baking time, production pace is speeded up, a large quantity of energy is saved, emission of carbon dioxide and nitrogen oxide is significantly reduced and economic and social benefits are prominent.

The invention relates to a method and a system for the mass production and the coupling carbon fixation and emission reduction of healthy green food common nostoc, which realize large-scale high yield and carbon fixation and emission reduction by using a semiclosed indoor pool on the basis of realizing the high yield of the common nostoc and disclose a structural principle of the pool and optimization conditions of seven basic elements for culturing the common nostoc. The method is suitable for the urban and rural large-scale production, is especially suitable for poor grain lacking regions and is also suitable for the food self-supporting production of global extreme environments and disasters and spaceman living environments. The invention provides a novel healthy green food for human and also realizes the emission reduction, the oxygen generation, and the environment improvement in the food production process.

The invention relates to CO2 emission reduction and recycling technologies, and discloses a method for adopting microalgae culture immobilized microbe fermentation tail gas CO2 as a supplementation fermentation raw material. According to the invention, tail gas in a microbe fermentation tank is directly introduced into a microalgae culture illumination bioreactor; conditions such as illumination, temperature, and ventilation are controlled; proper inorganic nutrient salts are added; CO2 in microbe fermentation tail gas is adopted as a carbon source for culturing microalgae; biomasses such as carbohydrates and proteins are accumulated; the biomasses are converted into raw materials such as carbon and nitrogen sources needed by fermentation through pretreatment; and the raw materials are delivered back to the microbe fermentation system to be utilized as a fermentation supplementation raw material. With the method provided by the invention, emission reduction and recycling of the microbe fermentation tail gas CO2 are realized; grain raw material consumption of microbe fermentation is reduced; and good environmental and social benefits are provided.

The invention relates to a single-module independent water-cooled type automobile tail gas thermoelectric conversion device and method. The device consists of a thermoelectric conversion unit and a voltage polling unit and is characterized in that: an engine exhausts high-temperature tail gas; in a plurality of thermoelectric conversion modules of the thermoelectric conversion unit, the hot ends absorb the heat of the high-temperature tail gas and the cold ends cling to an independent small water tank; the temperature difference between the hot ends and the cold ends is increased by cooling water of a cooling device of the engine or a cooling water loop designed externally and independently, so that direct-current electric energy is generated; the voltage polling unit detects the direct-current voltage generated by each thermoelectric conversion module; and optimal series and parallel combination is performed according to the output characteristic of each thermoelectric conversion module, so that output power and conversion efficiency of the automobile tail gas thermoelectric conversion device can be improved to the maximum degree. The temperature difference between the hot ends and the cold ends is increased by the single-module independent water-cooled mode; the heat of the waste gas exhausted by the automobile is effectively utilized; and the generated electric energy is applied to vehicle-mounted equipment, so energy conservation and emission reduction of the automobile are facilitated.

The invention relates to a combined heat and power system for directly recovering exhaust afterheat of a power station steam turbine by an absorption heat pump, which is used for recovering the exhaust afterheat of the power station steam turbine. The combined heat and power system comprises a power plant boiler (1), the steam turbine (2), an electric generator (3), a steam turbine exhaust pipe (4), a condenser (5), a cooling tower or an air cooling system (6), a water circulating pump (7), an exhaust condensate pump (8), a steam extraction and water condensation boiler pipe (9), the absorption heat pump (10), a hot water return pipe (11), a hot water outlet pipe (12) and a steam turbine extraction pipe (13), wherein the absorption heat pump (10) comprises a generator (14), a condenser (15), an absorber (16) and an evaporator (17). The combined heat and power system is characterized in that: low-pressure steam pipes discharged by the steam turbine (2) are divided into two paths, wherein one path is connected with the condenser (5) through the steam turbine exhaust pipe (4), while the other path is connected with the evaporator (17) of the absorption heat pump (10) through a steam turbine exhaust evaporator tube (19). The combined heat and power system can more effectively recycle low-grade exhaust condensation heat of a power plant, and reduces the temperature loss, improves the supply water temperature of hot water, and reduces the system investment and operating cost on the premise of not changing the exhaust back pressure.

The invention discloses a hierarchical porous supported nickel-based catalyst, a preparation method and application of the catalyst to a carbon dioxide methane reforming reaction. The hierarchical porous supported nickel-based catalyst is prepared from a carrier and an active ingredient dispersed on the carrier. The catalyst is characterized in that the carrier is selected from at least one of inorganic oxides and contains macropore with the average pore size larger than 50 nm and mesopore with the average pore size of 1 nm-50 nm, and nickel is adopted as the active ingredient. The hierarchical porous supported nickel-based catalyst is used for the carbon dioxide methane reforming reaction, has the excellent sintering resistance and carbon deposition resistance and has the important realistic significance on promoting industrialization of the carbon dioxide methane reforming reaction.

The invention discloses a method for indirectly promoting medium and low temperature solar heat energy grades, which comprises the following steps of: introducing medium and low temperature solar heat energy in chemical regenerative cycle, converting the solar heat energy into steam internal energy by means of steam evaporation latent heat, converting the steam internal energy into synthetic gas chemical energy by reforming reaction with the participation of steam to realize grade promotion, and finally implementing heat power conversion in a combustion gas turbine system. Because of the introduction of solar energy, turbine exhaust waste heat reclamation is improved, fossil energy consumption is reduced, meanwhile, steam yield is increased, and chemical regeneration and physical regeneration benefits are increased. The solar energy heat-to-power net efficiency can reach 25 to 30 percent; and compared with the conventional chemical regenerative cycle, the efficiency is improved by 5.7 percent, the fossil energy can be saved by 20 to 30 percent, and meanwhile, CO2 emission reduction is realized. Therefore, the method has good economic efficiency and broad engineering application prospect.

A wastewater advanced treatment method coupling membrane and electricity belongs to the technical field of wastewater treatment. The treatment method comprises the following steps: discharged wastewater is filtered through a membrane filtration device to obtain fresh water and concentrated water; the fresh water is recycled, the concentrated water is conveyed into an electrocatalysis and electrooxidation device, and the organic pollutants and organisms in the concentrated water are treated and decomposed by electrocatalysis and electrooxidation; the obtained reclaimed water is conveyed into a bipolar membrane electrodialysis device, and the inorganic salt in the reclaimed water is transformed into acid and alkali, so that resource utilization is achieved; the wastewater with the inorganic salt separated by the bipolar membrane electrodialysis device is adopted as scenic environmental water. According to the treatment method, membrane and electricity are coupled, so that advanced treatment of wastewater, material recycling and emission reduction of pollutants are achieved; all water quality indexes of the fresh water and the concentrated water treated through the treatment method respectively meet the standards of GB/ T 19923-2005 The Reuse of Urban Recycling Water-Water Quality Standard for Industrial Uses and GB/ T 18921-2002 The Reuse of Urban Recycling Water-Water Quality Standard for Scenic Environment Use.

The invention provides a preparation method of lysozyme, comprising the following steps: a. pretreating: separating egg white from egg yolk and facilitating the egg white to enter a raw material storage tank after sterilizing; b. separating and purifying: carrying out ultrafiltration separation on homogenized egg white liquid by an ultrafiltration membrane with molecular weight cutoff of 30000D to obtain filtered solution; sending the filtered solution to an ion exchange resin chromatography column for chromatography, carrying out elution after chromatography, collecting qualified elution solution and filtering the elution solution by an ultrafiltration membrane with molecular weight cutoff of 5000D to obtain concentrated solution cutoff; c. drying: spray drying the concentrated solution cutoff and preparing the finished product of lysozyme after drying. The product prepared by the method has higher enzyme activity than the enzyme activities of current domestic products, short production cycle and high yield, can be used as enzyme reagents of pharmaceutical raw materials and biochemical tools and can be also used as preservatives of high-grade organisms and food additives. Each index of the product reaches or exceeds the state pharmaceutical standard.

The invention relates to a sewage treatment method in synthetic rubber production and belongs to the technical field of industrial sewage treatment. The method comprises steps in the following order: sewage pretreatment, sludge adsorption, hydrolytic acidification, aerobic biochemical treatment and advanced oxidation treatment, inclusive of domestic sewage and synthetic rubber production sewage blended treatment. By the adoption of the method, biodegradation rate and degradation effect are effectively raised. Iron-carbon microelectrolysis technology is adopted in the advanced oxidation stage, thus greatly reducing treatment cost and effectively removing pollutants of COD, NH3-N the like in the synthetic rubber production sewage. COD of an effluent obtained after the treatment is less than or equal to 60mg/L, and NH3-N is less than or equal to 5mg/L. therefore, the method achieves the standard of discharge and is of great realistic significance. In addition, the treatment cost of the sewage per ton can be reduced to 0.5 yuan. The economic benefit is great.

The invention relates to a heat supply system for directly recovering sewage multi-section flashing steam waste heat by using multiple sections of absorption heat pumps, which is used for recovering sewage flashing steam waste heat. The system comprises 1, 2, ..., and N independent sealing chambers and the multiple sections of absorption heat pumps, wherein the multiple sections of absorption heat pumps comprise respective 1, 2, ..., and N generators, 1, 2, ..., and N condensers, 1, 2, ..., and N absorbers and 1, 2, ..., and N evaporators; water steam which is formed by flashing sewage in the 1, 2, ..., and N independent sealing chambers and has different pressure from high pressure to low pressure enters 1, 2, ..., and N evaporator tubes sequentially by 1, 2, ..., and N flashing steam and is directly connected with the 1, 2, ..., and N evaporators of the multiple sections of absorption heat pumps; and flashing steam condensate outflows the 1, 2, ..., and N evaporator tubes and reflows to respective 1, 2, ..., and N liquid phase areas of the 1, 2, ..., and N independent sealing chambers sequentially by respective 1, 2, ..., and N flashing steam condensate. The system can reduce heat loss, improve the water-supply temperature of hot water and reduce investment and running cost.

The invention discloses a method for measuring a dry-quenching burning loss rate based on an exergy balance. The method comprises the following steps of: establishing an exergy balance model for a dry-quenching burning system after analyzing a dry quenching process, operating situations and related factors for affecting the dry-quenching burning loss rate; and obtaining a relationship between the dry-quenching burning loss rate and a steam yield through the analysis of the exergy balance model. According to the method disclosed by the invention, the dry-quenching burning loss rate can be simply, conveniently, effectively and quickly calculated out by using the relationship; and besides, the method has important meanings for reducing the dry quenching production cost and improving the dry quenching yield and efficiency.

The invention provides a sludge treatment device using waste heat of a boiler and a treatment process thereof, relates to a sludge treatment device using waste heat of a boiler and improvement of a treatment process thereof, in particular to a sludge treatment device using waste heat discharged by fume of a boiler and a treatment process thereof. The sludge treatment device comprises the boiler, wherein the boiler is respectively connected with a coal conveying belt device and a fume discharge treatment device. The sludge treatment device is characterized in that the fume channel of a fume discharge device is connected with a drier through an induced draft fan and a cyclone separator; the side of the drier is connected with a sludge storage warehouse; the drier and the bottom of the cyclone separator are connected with a finished product warehouse through a belt conveyer; and the finished product warehouse is connected with the coal conveying belt device through a spiral conveyer. The treatment process comprises the following steps: firstly, introducing fume in the fume discharge channel of the boiler into the drier to dry sludge; and sending tail gas in the dried sludge into the fume discharge channel of the boiler, and then returning the residual sludge to the boiler to participate in combustion.