30results about How to "Reduce the risk of polluting the environment" patented technology

The invention relates to a method for preparing animal blood plasma albumen powder, which comprises a process system consisting of animal blood anticoagulant treatment, blood refrigeration, centrifugal separation, membrane concentration, spray drying and tail gas recycling. The method comprises the following steps of: performing anticoagulant treatment on the fresh animal blood with a compound anticoagulant liquid, refrigerating, performing centrifugal separation on the refrigerated product and obtaining blood plasma liquid; performing membrane concentration on the blood plasma liquid, allowing the obtained product to flow to a tail gas recycling device for spray drying, and absorbing blood plasma albumen powder and afterheat in the dry tail gas; performing micropore filtration and spray drying, and obtaining the high-quality animal blood plasma albumen powder. Waste gas generated by the treatment of the tail gas recycling device is directly discharged into the air. The process method reduces the ash content of the animal blood plasma albumen powder from 12 percent to 8 percent, removes odor and increases the spray drying recovery rate from 98 percent to 99.5 percent, so that resources are saved, drying energy consumption is reduced, and the risks of polluting environment are reduced.

The invention relates to an aerated concrete block and a preparation method thereof, belonging to the technical fields of comprehensive metallurgy solid waste resource utilization and novel energy-saving construction material industries. In order to treat and utilize coal ash to the maximum limit, the coal ash addition amount in raw material proportion is increased, the coal ash addition ratio is increased to be 75-80% from 70-72%, various technique parameters are matched and adjusted, the raw material machining process is improved, the aerated concrete block is prepared from the following raw materials in percentage by mass: 75-80% of coal ash, 15-20% of quick lime, 1-2% of cement, 2.0-3.0% of desulfurization gypsum and 0.8-1.0% of Al powder through processes of machining raw materials, blending the raw materials, stirring, casting, standing, demolding, cutting, steaming and compressing, and maintaining. The production and operation cost of comprehensive coal ash utilization enterprises is lowered, the disordered pouring and discharge amount of the coal ash is reduced, and the risk that the environment is polluted by the coal ash is reduced.

The invention provides a method for extracting fiber used for papermaking from vinasse. The method comprises the following steps: 1) extracting a preliminary vinasse fiber extract from the vinasse; and 2) subjecting the preliminary vinasse fiber extract to modifying treatment so as to obtain the fiber used for papermaking. The preliminary vinasse fiber extract is prepared through the following preparation process: mixing the vinasse with water; under the condition of full stirring, selecting a 6-to-20-mesh sieve, and subjecting the vinasse to filtering treatment so as to the upper-layer preliminary vinasse fiber extract; and centrifuging a lower-layer filtrate so as to obtain a supernatant. According to the invention, after the preliminary vinasse fiber extract and the supernatant are mixed and ground, an obtained mixture is added into a reaction vesssel; a dispersant and a deep eutectic fluxing agent are then added into the reaction vessel; after a reaction under heating and stirringis performed, sieving is performed with a press-filtering curved sieve; thus, a vinasse extract is obtained; moreover, the vinasse extract is mixed with a conventional paper raw material to prepare apapermaking pulp which is conveyed into a papermaking machine for papermaking to form composite paper. The method provided by the invention provides a novel raw material for the papermaking industry,and has great practical value for cyclic utilization of vinasse resources.

The invention discloses a treatment method for smelting waste water containing sulfuric acid and heavy metal. The treatment method includes the specific steps: (1) performing adsorption reaction by means of adding appropriate adsorbent, used for adsorbing sulfate radical in the waste water, into the waste water; (2) performing solid-liquid separation by means of subjecting the water water after adsorption reaction to precipitation or filtration prior to solid-liquid separation; (3) for chemical precipitation, subjecting supernate or filtrate obtained by solid-liquid separation to chemical coagulative precipitation; (4) removing the heavy metal, using a heavy metal filter for treating the supernate obtained after chemical coagulative precipitation, and completely removing the residual heavy metal. The method has the advantages that water water discharge is up to standards, sludge is little, treatment cost is low, and secondary pollution is avoided.

The invention provides a method for efficiently preparing oil by using kadsura coccinea seeds. The method comprises the steps of grinding seed kernels; adding water and adjusting the pH value of slurry; adding a mixed enzyme for enzymolysis and centrifuging to obtain seed oil and wastewater; carrying out adsorption treatment on the wastewater through 732 cation exchange resin and recycling the wastewater for multiple times; and adopting the wastewater produced by circulating oil preparation as a feed additive after fermentation treatment. According to the method, the emulsification effect is obviously weakened, the content of phenol and saponin in the water and the oil is obviously reduced, cyclic reuse of the water is facilitated and the discharge amount of the waste is reduced. A feed leavening agent is produced by adopting the wastewater as a basis, so that the risk that the wastes pollute the environment can be greatly reduced, and meanwhile, the utilization value of effective components in the wastes is also improved.

The invention provides a method for producing litsea cubeba oil by utilizing litsea cubeba. The method comprises the following steps: grinding litsea cubeba, mixing the ground litsea cubeba and water, adjusting a pH value of a material solution, adding mixed enzyme, performing the enzymolysis, and centrifuging to obtain olive oil and waste water; adsorbing the waste water by virtue of a 732-cation exchange resin, and recycling for multiple times; adding wet residues into waste water produced by the circular oil production, enabling the water content to reach 25 to 35 percent, sterilizing for 20 to 30 min at the high temperature of 115 to 121 DEG C, adding 10 to 20 percent of bacillus subtilis powder, fermenting for 3 to 5 days at 25 to 30 DEG C, granulating, drying at a low temperature of 35 to 45 DEG C, and obtaining a feed additive. The content of proteins is reduced in the litsea cubeba oil extraction process, the emulsification effect is apparently weakened, the repeated application of the water is facilitated, and the discharging amount of the waste water is reduced. The waste water and the wet residue are directly utilized as a base to produce a feed product, so that the risk that the environment is polluted by the waste water can be greatly reduced, and the utilization value of active ingredients in the litsea cubeba can also be increased.

The invention discloses a foamed glass material for purifying water, and a preparation method thereof. Waste glass bottles undergo a series of treatments through special techniques to form the foamedglass material for purifying water, that is foamed micro-porous silicon pumice with an aperture of 1-4 mm, a water absorption rate of 5-10%, a stress of 1200-3000 N and a specific gravity of 0.5-0.8 g/ml. A foaming mixture is calcined at a high temperature to prepare the foamed glass material, and the foaming mixture includes 90-93 wt% of glass powder, 0.4 wt% of seashell powder having a particlesize of 2-4 mm, 0.6 wt% of seashell powder having a particle size of 1 mm or less and 0.2-1.0 wt% of activated carbon. The foamed microporous silicon pumice has the advantages of durability, high performances, non-toxicity, harmlessness, non-radioactivity, good chemical stability, good corrosion resistance, good weather resistance, insolubility and non-degradability, and the ammonia nitrogen, biochemical oxygen demand, chemical oxygen demand and other indicators of sewage treated with the foamed glass material are significantly reduced.

The invention discloses vehicle-mounted garbage treatment system which comprises a loading conveyor connected with a vehicle, a crusher, a charging conveying mechanism, an incinerator, a flue gas cooling energy recycling device, a dust remover, an induced draught fan and a smoke exhaust barrel, wherein the charging end of the charging conveying mechanism is positioned below a discharge hole of the crusher; the incinerator is connected with a vehicle; the flue gas cooling energy recycling device communicates with a flue outlet of the incinerator; the dust remover is connected with a flue gas outlet of the flue gas cooling energy recycling device; the induced draught fan is connected with a flue gas outlet of the dust remover; the smoke exhaust barrel is connected with a smoke exhaust hole of the induced draught fan; the charging conveying mechanism comprises a first conveyor, a first box which covers the periphery of the first conveyor, a heating room surrounding the outer part of the first box body, a second box body connected with the first box body, and a second conveyor for conveying incoming materials of the first conveyor into the incinerator; the heating room communicates with a smoke outlet of the incinerator and a flue inlet of the flue gas cooling energy recycling device; the end, away from the incinerator, of the first box body is connected with a feeding hole and an air inlet; the second box body is equipped with a second box body air outlet; and the air outlet of the second box body communicates with an air inlet of the incinerator.

The invention discloses a real-time pipeline replacement method and real-time pipeline replacement system for a coke oven. The system comprises a fluid generating device, an original pipeline, a firstthree-way valve, a second three-way valve and a fluid receiving device. The invention also discloses a method for replacing the pipeline in real time for the coke oven, which comprises the followingsteps of: when gas leakage occurs in the original pipeline, connecting one end of the standby pipeline to the third connecting port, connecting the other end of the standby pipeline to the sixth connecting port, and opening the third ball valve and the fourth ball valve, or, when the standby pipeline is connected to the third connecting port and the sixth connecting port, directly opening the third ball valve and the fourth ball valve, and closing the first ball valve and the second ball valve. According to the method and the system, the pipeline replacement time is short, the efficiency is high, and the risk that coal gas pollutes the environment is reduced. The pipeline can be replaced without stopping the experiment, so that the experiment efficiency is greatly improved, and unnecessaryresource waste is reduced.

The invention relates to a wastewater treatment technology, and aims to provide a wastewater reduction method combining a hyperbolic tower and a mechanical atomization evaporator. A mechanical atomization evaporator is used for forming vertically upward water mist, atomized liquid drops are driven by continuous airflow to diffuse and evaporate upwards, water in the atomized liquid drops is gasified and discharged from the top of the tower, and inorganic salt components are crystallized and separated out and fall down due to the gravity effect to be collected and treated regularly; large liquid drops which are not atomized fall back into the waste water pool under the action of gravity and then go through the next cycle process. The natural evaporation efficiency can be greatly improved, the occupied area of the evaporation pond is reduced, meanwhile, the risk of polluting the environment is reduced through the closed space, and water-salt separation can be efficiently achieved in a low-carbon mode. The evaporation efficiency is improved, and the process can be cyclically carried out. Salt particles and volatile organic compounds are effectively collected in the semi-closed tower, so that the surrounding environment is prevented from being polluted; and energy and materials are saved, the construction difficulty is low, the occupied area is small, and the manufacturing cost is low.

The invention relates to the technical field of microorganism detection, and discloses an automatic food microorganism detection pretreatment method and device. The pretreatment method of the present invention introduces water washing bacteria collection and complete machine safety guarantee into the pretreatment of food microorganisms through the automatic rotating culture platform, culture cup, automatic concentration device, constant temperature device and safety assurance mandatory program, avoiding the greatest extent The loss of quality and quantity of bacteria caused by the mechanical crushing method improves the accuracy of detection and reduces the risk of infecting personnel and polluting the environment.

The invention provides a comprehensive method for efficiently preparing olive oil from olive fruit. Olive fruit is ground; water is added; the material liquid pH value is regulated; mixed enzymes are added for enzymolysis; centrifugation is performed to obtain olive oil and waste water; the waste water is subjected to adsorption treatment by 732 cation exchange resin; the cyclic use is performed for many times; waste water generated through cyclic oil preparation is used as raw materials to be used for feed fermentation agents after the fermentation treatment. The protein content is reduced in the olive oil extraction process, so that the emulsification effect is obviously weakened; the content of phenols and saponin in water and oil is obviously reduced; the cyclic and repeated use of the water is facilitated; the discharge quantity of the waste water is reduced. The waste water and the waste slag are directly used for producing feed fermentation agents, so that the environment pollution risk by the waste water is greatly reduced; meanwhile, the utilization value of effective ingredients in the waste water is improved.

The invention discloses a fluff attaching tool. The fluff attaching tool comprises an underframe, a first positioning frame and a second positioning frame. The first positioning frame and the second positioning frame are arranged on the upper surface of one side of the underframe. A first positioning plate and a second positioning plate are arranged in the middle of the underframe. A first limiting plate is arranged on the other corresponding edge of the underframe. A first limiting space used for containing a rubber strip is formed between the first limiting plate and the upper surface of the underframe. The first positioning frame is provided with a first rotary shaft, and the first rotary shaft is provided with a clamping part; the first positioning frame is connected with a first positioning rod through the clamping part; the tail end of the first positioning rod is located above the first positioning plate. The second positioning frame is provided with a second rotary shaft, and the second rotary shaft is provided with a clamping part; the second rotary shaft is fixedly connected with a second positioning rod through the clamping part, and the tail end of the second positioning rod is located below the second positioning plate. The rubber strip passes through the space below the second positioning plate, and the tail end of the second positioning rod abuts against the rubber strip; attaching wheels are arranged at the tail end of the first positioning rod and the tail end of the second positioning rod respectively, and fluff is attached to the rubber strip through the attaching wheels.