58results about How to "Reach emissions" patented technology

A recycling treatment method for feces and wastewater in a large-scale livestock and poultry breeding farm includes the following steps: (1) pre-treating the feces and wastewater in the large-scale livestock and poultry breeding farm in a pretreatment unit to form slurry; (2) feeding the slurry into an energy recovery unit, and performing solid anaerobic digestion in a solid anaerobic reactor to obtain an energy gas, methane; (3) performing solid-liquid separation to the digested slurry to generate wastewater, which is then fed into a UASB reactor to perform further anaerobic fermentation to remove organic pollutants from the wastewater; (4) feeding the treated wastewater into a nitrogen and phosphorus removal unit to perform nitrogen and phosphorus removal treatment; (5) separating and purifying a precipitate, which is generated in the nitrogen and phosphorus removal unit and mainly includes magnesium ammonium phosphate, to obtain an organic fertilizer additive, wherein the nitrogen removal process is autotrophic nitrogen removal and can reduce aeration quantity by 62.5% without addition of any carbon sources, thus saving large quantity of operation cost; and (6) feeding the treated wastewater into a deep-treatment unit to remove bio-refractory substances and disinfect the wastewater so as to finally reach emission and recovery standards of wastewater.

A process for preparing pulp from the non-pith corn stalk and bleaching it without use of chlorine includes removing pith and leaves from corn stalk, cutting in to stalk pieces with 20-30 mm length digestion and PO bleaching twice. Its advantages are no need of wood and no chlorine pollution.

The invention discloses an industrial sewage treatment system and purification method, belonging to the technical field of environmental protection. The sewage treatment system comprises a sewage collection pipeline (1), a cooling pipe (2), a water storage tank (3), a first precipitation tank (4), an oil-water separator (5), a second precipitation tank (6), an ozone tank (7), a third precipitation tank (8), a disinfection tank (9) and a clarification tank (10). The purification method comprises the following steps: cooling, primary adsorption, water storage, precipitation, oil-water separation, heavy metal ion removal, cyanide removal, sulfide removal, disinfection, secondary adsorption and purified water discharge. The system and method can be used for removing various pollutants, can thoroughly remove the pollutants, has high purification efficiency, and effectively prevents environmental pollution; and the effluent water can achieve the National Water Pollution Discharge Standard.

The invention relates to a method for processing waste water of acid leaching and deironing, in particular to a method for processing waste water of acid leaching and deironing of potassium feldspar. The processing method comprises the steps of carrying out acid leaching and deironing on the potassium feldspar, flushing the potassium feldspar after acid leaching and deironing are carried out, and processing flushing fluid used for flushing the potassium feldspar. The method has the advantages that bluestones and quicklime serve as a processing agent, cost is low, operation is easy, and the processing time is short; as the flushing fluid is recycled in the whole system, no waste water is drained in the whole system, and zero drain of the waste water is achieved.

The invention discloses a method for treating pig farm feces through an outside fermenting bed. The method includes the steps of constructing the fermenting bed outside a pig farm, and uniformly laying fermentation materials on the bottom of the fermenting bed according to the order of a pad material, bacteria, manure and rice bran, corn flour and lees from top to bottom; plowing and harrowing, conducting ventilation, supplementing bacteria at regular intervals according to the quantity of 30 g/ m2 on the fermenting bed, and therefore maintaining the high activity of the fermenting bed; collecting feces in the pig farm to a cesspool, uniformly spraying on the pad material of the fermenting bed through a feces management system, making the faces decomposed to form small molecule matter and meanwhile absorbed by profitable strains for growth and reproduction of the bacteria, and changing the manure into an organic fertilizer through the synergistic fermentation of the pad material and feces collection matter. According to the method, the pig farm and the fermenting bed are separated and isolated to avoid mutual effects and eliminate disease transmission potential, and the method has the advantages of easy construction, convenient operation, thorough collection and treatment of feces, and remarkable effects of energy saving and emission reduction.

The invention discloses a supergravity rotational flow micro-bubble ozone oxidation advanced treatment system for wastewater. The advanced treatment system comprises a premixing system and a supergravity oxidation system, the premixing system comprises an ozone bubble nanocrystallization device used for forming a micro-bubble gas and liquid mixture, and the ozone bubble nanocrystallization deviceis connected with an ozone generator and a tail gas utilization device through pipelines; and the supergravity oxidation system comprises an outer cylinder reaction tank and an inner cylinder reactiontank which are coaxially arranged, and a hydrocyclone and an ultrasonic generation device are further arranged in the inner cylinder reaction tank. The microbubble catalytic effect is combined with atubular rotational flow and circular flow mixed technology, so that generated ozone bubbles are small, the ozone mass transfer efficiency is greatly enhanced, the contact efficiency of organic pollutants, a catalyst and ozone is promoted, the reaction is thorough, and the ozone utilization rate is high. The ultrasonic generating device is arranged to keep the surface of a runner smooth, so the water flow resistance and the water head loss are reduced. The advanced treatment system has a good removal effect on phenol-containing high-concentration organic wastewater.

The invention relates to an exhaust waste heat power generation and exhaust purification system based on a Stirling generator. The exhaust waste heat power generation and exhaust purification system based on the Stirling generator comprises an exhaust emission purification unit and an exhaust waste heat power generation unit which are connected with each other. The exhaust emission purification unit comprises a first exhaust pipe, a one-way valve, a secondary combustion and heat exchange device, and a second exhaust pipe, which are connected in sequence. The exhaust waste heat power generation unit comprises the Stirling generator, a radiator, a cold-hot gas exchanger, a hot cavity pipe extending into the secondary combustion and heat exchange device, and a regulated adaptor. High-temperature exhaust passes through the exhaust pipe and the one-way valve and enters the secondary combustion and heat exchange device, large solid particles in the exhaust are combusted by instant high heat generated by a spiral resistance wire, and the requirement of exhaust emission of PM2.5 (particulate matter 2.5) is met. The hot cavity pipe penetrates through a ring center of the spiral resistance wire and is heated by the high-temperature exhaust, the high-temperature spiral resistance wire also releases heat to increase temperature of a hot cavity of the Stirling generator, and accordingly thermal efficiency of the Stirling generator is improved.

The invention relates to a waste water utilization device comprising a washing platform, a wash basin, a water storage tank, a balance chamber, a balance chamber floater, a balance chamber floater switch, an overflow port, a closestool water tank, a tap water supplying pipe, a waste water pipe, a closestool water inlet pipe, a closestool floater, a closestool floater switch, a water flushing switch, and the like, wherein the bottom of the water storage tank is provided with the balance chamber; the bottom of the balance chamber is provided with two water pipe interfaces, one water pipe interface is connected with the tap water supplying pipe, the other water pipe interface is connected with the flush closestool water inlet pipe; the bottom surface of the water storage tank is as high as the water surface of a water discharging box full of water; and the bottom surface of the balance chamber is as high as the bottom surface of the closestool water tank. By adopting the design, the invention achieves the automatic switching of water supply and has simple and attractive structure.

The invention relates to an air purification system for a building. The air purification system for the building comprises a longitudinal exhaust pipeline, the longitudinal exhaust pipeline passes through each floor, a first exhaust port and a second exhaust port are formed in a room of each resident, the first exhaust ports are formed at a first height, and the second exhaust ports are formed ata second height; the first exhaust ports and the second exhaust ports communicate with the longitudinal exhaust pipeline, first fans are arranged in the longitudinal exhaust pipeline, a second fan isarranged at the top end of the longitudinal exhaust pipeline, an inlet of the second fan communicates with the longitudinal air exhaust pipeline, and an outlet of the second fan communicates with theoutside air; and the first height is higher than the second height. According to the air purification system for the building, the first exhaust ports and the second exhaust ports are arranged at different heights, so that indoor air flow is easily formed, then indoor polluted air can be uniformly extracted through the fans and discharged to the outside air, the comfort of the life of people is guaranteed, and the harm to the body health of people living in the room for a long time is reduced.

The invention discloses an automatic-cleaning-type environment-friendly pig house. The pig house comprises an upper overhead layer, a middle live pig feeding layer and a lower overhead layer; the upper overhead layer is provided with a first negative pressure fan, a pigsty floor of the middle live pig feeding layer is a semi-feces-leakage floor formed by combining a feces leakage floor and a solidfloor, a feces ditch is formed below the feces leakage floor, a ventilation channel is formed below the solid floor, the terminal of one end of the ventilation channel is also provided with a secondnegative pressure fan, the second negative pressure fan is communicated with the upper overhead layer through a pipeline, and the automatic-cleaning-type environment-friendly pig house further comprises sliding rails and high-pressure atomizing spray guns. The automatic-cleaning-type environment-friendly pig house has the advantages that it is ensured that odor in the automatic-cleaning-type environment-friendly pig house is timely discharged; the pig house achieves the purposes of zero sewage discharge and deodorization; heat generated by a pig herd can enable a sewage evaporation and odor adsorption system and a solid-state feces sewage composting treatment area to be kept at a certain temperature, and the influence of the low temperature is avoided; the purpose of zero sewage dischargeand deodorization of the pig house can be achieved.

The invention which relates to a method for preparing high purity alkoxysilanes from a polysilicon byproduct silicon tetrachloride belongs to the technical field of polysilicon production. The technical scheme of the invention comprises the following steps: silicon tetrachloride is reacted with lower fatty alcohol under conditions of normal temperature and normal pressure to obtain a reaction material containing tetraalkoxysilanes and hydrogen chloride; an acid removing agent is added for several times to remove hydrogen chloride to make the PH to be equal to or more than 4, an alkaline substance is added to neutralize to make the PH value to achieve 6 to 9, and rectification is carried out with controlling a reflux ratio of not less than 3:1 to obtain alkoxysilane products with the purity of equal to or more than 99% and the hydrogen chloride content of equal to or less than 10 ppm. The method of the present invention allows comprehensive recycling of the polysilicon byproduct silicon tetrachloride to be realized, the productivity to be large, the cost to be low, system equipment to be simple, the hydrogen chloride content in the prepared alkoxysilane products to be equal to or less than 10 ppm, and the purity to be more than 99.9%.

The invention discloses a mud harmless treatment device and a mud treatment method. The mud harmless treatment device comprises a mud collecting tank, mud distributors, a reaction pipeline, a first mud supply device, diluting barrels, a dosing tube, a laminated spiral pressure filtering device, settling tanks and a conveyer belt, wherein the reaction pipeline is communicated with each of the mud distributors; the first mud supply device conveys mud in the mud collecting tank to the reaction pipeline; the diluting barrels are used for diluting a flocculating agent; the dosing tube is communicated with each of the diluting barrels and the first mud supply device; a dosing valve is arranged on the dosing tube; the laminated spiral pressure filtering device comprises a mud inlet, liquid outlets and a mud outlet; the mud inlet of the laminated spiral pressure filtering device is communicated with each of the mud distributors; the settling tanks are used for treating materials from the liquid outlets of the laminated spiral pressure filtering device; the conveyer belt is arranged below the mud outlet of the laminated spiral pressure filtering device. According to the mud harmless treatment device and the mud treatment method, unified collection and centralized harmless treatment of mud are realized, cyclic utilization of resources is realized, and environmental protection, energy conservation and zero emission are also truly realized.

The invention relates to a novel rotational flow impact boiler and a manufacturing method thereof. The distance between the central line of a backwall burner on the uppermost layer of the novel rotational flow impact boiler and the boiler screen bottom is equal to that between the central line of a backwall middle layer burner in the traditional rotational flow impact boiler with the same dimension and the boiler screen bottom; and the distance between the central line of a frontwall burner on the uppermost layer of the novel rotational flow impact boiler and the boiler screen bottom is equal to that between the central line of a frontwall middle layer burner in the traditional rotational flow impact boiler with the same dimension and the boiler screen bottom. The novel rotational flow impact boiler effectively reduces the NOx emission load of the traditional rotational flow impact boiler, and remits and reduces conflict between the NOx emission load and the burn out efficiency. According to the manufacturing method for the novel rotational flow impact boiler, the burn out efficiency of the old traditional rotational flow impact boiler which is used or operates is improved; the NOx emission is reduced, and the effects of the burn out efficiency of the pulverized coal boiler and low NOx emission load are achieved.

The invention relates to a warm bath boiler, in particular to a smokeless warm bath boiler, and belongs to the technical field of designing and manufacturing of normal-pressure hot water boilers.The warm bath boiler comprises a boiler hearth, a foot ring hearth and an air inlet pipe.The air inlet pipe comprises a primary air inlet pipe body and a secondary air inlet pipe body, an air inlet of the primary air inlet pipe body is located in the side face of the boiler foot ring hearth, an air inlet of the secondary air inlet pipe body is located in the middle or the upper portion of the side face of the boiler hearth, and the primary air inlet pipe body and the secondary air inlet pipe body are connected with a combustion fan.According to the smokeless warm bath boiler, the dust content in discharged smoke is small, environmental pollution is small, and the heat efficiency of the boiler can be remarkably improved.

The invention relates to a complementary solar energy and fuel coal heating system. The technical scheme includes that the complementary solar energy and fuel coal heating system is characterized in that a solar heating system is arranged between a desalting device and a deaerator and comprises a solar heater, a water inlet pipeline and a water outlet pipeline, a water supplement pipe is disconnected at a position, provided with a bypass valve, in front of the deaerator, two branch pipes are arranged on two sides of the bypass valve, and the water inlet pipeline of the solar heating system is connected with the branch pipe in front of the valve while the water outlet pipeline of the solar heating system is connected with the branch pipe behind the valve. Conversion of solar energy into heat for heating desalted water and a system converting electric coal into heat for heating the desalted water are matched and complementary in use, and accordingly electric coal consumption is reduced, effective use of energy sources is guaranteed, and environmental protection, energy saving and consumption reduction are achieved.

The present invention relates to a motor vehicle pollutant-emitting purifying fuel economizer mainly comprising a housing, wherein a fuel reaction tube is mounted in the housing; joints are mounted at two ends of the fuel reaction tube; a far infrared ray radiation rod is arranged in the reaction fuel tube; anticorrosion springs are mounted at two ends of the far infrared ray radiation rod; the outer side of the reaction fuel tube is sleeved with a permanent magnet material; a magnetism conduction partition sleeve is mounted at the middle part of the permanent magnet material; a demagnetization prevention partition is arranged on the outer side of the permanent magnet material; an electronic plate is mounted in the partition; an oscillator connected with the electronic plate is mounted on the outer side of the fuel tube; a work indicating lamp connected with the electronic plate is mounted in a sealing cover at one end of the housing; an anti-vibration protection sleeve is mounted on the outer side of the housing. According to the motor vehicle pollutant-emitting purifying fuel economizer, fuel molecular groups in the reaction fuel tube are cracked into fuel molecules due to the radiation of far infrared rays and influence of super-strong magnetic wave; the fuel molecules are activated by the ultrasonic wave by the oscillator and are arranged in sequence, thereby facilitating complete combustion, reducing fuel consumption and purifying emission pollution.

The invention discloses a method and device for efficiently oxidizing metal. Metal, a nitric acid solution or a mixed solution of nitric acid and hydrochloric acid and oxygen are oxidized in a self-suction type stirring reaction kettle; and the generated nitrogen oxide gas is oxidized into NO2 by the introduced oxygen, the NO2 is sucked into the solution at the lower part under the strong stirring of a self-suction stirrer, is mixed and dispersed with the solution and reacts with water to generate nitric acid again, and the operation is repeated until the nitrogen oxide is completely absorbed by the solution. The integrated self-suction type stirring reaction kettle solves the problem of absorption and utilization of nitric oxide, the consumption of nitric acid raw materials is reduced, no nitric oxide is discharged, no external circulating equipment is arranged, and the oxidation reaction is efficient and simple.

The invention provides a sponge city large and small rainwater flow-dividing and discharging device. The device comprises a rainwater collecting thin pipe, a first connecting plate, a flow-dividing pipeline, a second connecting plate, a rainwater collecting thick pipe, a water inlet pipe, a filtering cover and a supporting frame, wherein the rainwater collecting thin pipe is fixedly arranged on one side of the rainwater collecting thick pipe; the supporting frame is installed at the bottom of the rainwater collecting thin pipe, the first connecting plate is connected to the upper portion of the rainwater collecting thin pipe, and the flow-dividing pipeline is connected to the side, away from the rainwater collecting thin pipe, of the first connecting plate; the flow-dividing pipeline is connected to the upper portion of the second connecting plate, and the rainwater collecting thick pipe is connected to the side, away from the flow-dividing pipeline, of the second connecting plate; andthe water inlet pipe is connected to the top of the flow-dividing pipeline, and the filtering cover is arranged at the top of the water inlet pipe. According to the discharging device, the water discharging effect can be achieved only through the rainwater collecting thin pipe in light rain, the rainwater collecting thin pipe runs in a full-load mode in heavy rain, at the moment, redundant rainwater can overflow into the rainwater collecting thick pipe through the flow-dividing pipeline, and the effect of discharging a large amount of rainwater is achieved.

The invention relates to the technical field of thermal power generation, and discloses an efficient thermal power generation device. The efficient thermal power generation device comprises a smoke residue collecting cylinder, the top of the smoke residue collecting cylinder is fixedly connected with a vent pipe, the top of the vent pipe is fixedly connected with a fine opening pipe, a baffle is fixedly connected to the inner wall of the smoke residue collecting cylinder, a smoke residue storage tank is fixedly connected to the outer wall of the smoke residue collecting cylinder, and the top of the smoke residue storage tank is fixedly connected with a combustion hollow column. According to the thermal power generation device, the problems that when thermal power generation in the market is in use, the atmosphere is polluted, filter residue treatment is improper, and then the environment is affected are solved, according to the scheme, the smoke residue collecting cylinder is fixedly connected to the top of a dust collecting box, the baffle plate is fixedly connected with the inner wall of the smoke residue collecting cylinder so that when flue gas enters the vent pipe, air can beblown into the smoke residue collecting cylinder through a fine opening pipe, and smoke ash is blown into the dust collecting box to be collected.