33results about How to "Effective reduction" patented technology

The invention discloses a treatment method for the leachate of a hazardous waste landfill, which comprises the following steps: (1) using an evaporation concentration process: adding acidic substances to the leachate of the hazardous waste, and controlling the pH value to 4-5 during the evaporation process; Use vacuum distillation to reduce pressure, control the evaporation temperature between 60-70°C, and reuse or discharge the distillate after treatment; (2) Cool and crystallize the concentrated liquid generated during the distillation process, and then carry out crystal separation; (3) Coagulation and flocculation are carried out to the liquid separated in step (2), then the flocs are removed by the air flotation separation process, and the scum of the separation gained is sent to the hazardous waste incinerator for incineration; (4) to the step ( 2) The solid separated in the process is sent to the hazardous waste landfill for landfill. The treatment method of the present invention can effectively and properly reduce and harmlessly treat the leachate of the hazardous waste landfill to the greatest extent, without generating secondary pollutants and causing no load impact on subsequent treatment.

On the surface of the titanium slab containing the titanium alloy produced by the electron beam smelting method or the plasma arc smelting method, which becomes the rolling surface, there is a molten and resolidified layer within a depth of 1 mm or more, and the molten and resolidified layer is One or two or more β-phase stabilizing elements are added, melted and resolidified, and the average value of the concentration of β-phase stabilizing elements within the range up to a depth of 1mm is higher than that in the base material in mass % The concentration of the β-phase stabilizing element is higher by 0.08 mass % or more and 1.50 mass % or less. As raw materials containing β-phase stabilizing elements, powders, chips, wires, and foils are used. In addition, electron beam heating and plasma arc heating are used as means for melting the surface layer.

The invention provides an interception tank for overland runoff in a heavy metal contaminated area of a mine, and belongs to the field of environmental engineering. The interception tank comprises three stages of tank bodies which are separated by virtue of wire meshes, wherein the first stage of tank is filled with a biomass material, the second stage of tank is filed with a mineral material, and the third stage of tank is filled with chitin and microorganisms; the wall of the interception tank is made of coal ash water permeable bricks, a plurality of pores having a diameter of 3-5cm are formed in the front wall of the interception tank, and two pores having a diameter of 12-16cm are formed in the side wall of the interception tank; the bottom of the interception tank is made of impermeable bricks; about two fifths of the whole tank body is arranged underground, and a plurality of tank bodies are arranged in parallel to form a whole interception system. The single interception tank is small in size and convenient to move and assemble, is low in cost of filled adsorption materials and remarkable in adsorption effect, has the advantages of simple interception process, convenience in operation and low operation management difficulty, can be used for realizing three-stage interception of multiple heavy metals in overland runoff of the heavy metal contaminated area of a mine, and has a remarkable effect of reducing heavy metals.

The invention relates to a technique for coal conversion wastewater treatment and recycling, and aims at providing a method for preparing a slurry fuel by coal conversion wastewater gradient utilization. The method comprises the following steps of coagulating the coal conversion wastewater, so as to separate three phases of water-containing tar, wastewater and sludge, wherein the tar separated from the water-containing tar is used for preparing emulsifying oil with fluidity, the sludge is filtered and treated to obtain filter residues and sludge slurry with fluidity, and the sludge slurry is used for gasifying or incinerating; blending and mixing the wastewater, pulverized coal, a coal water slurry additive, and the wastewater and residues obtained by separating, so as to prepare the coal water slurry; after the gasified wastewater produced by a gasifying furnace or a boiler is congealed, mixing into the coal conversion wastewater to coagulate, so as to realize the recycling function. The method has the advantages that the three phases of waste tar, waste liquid and sludge in the coal conversion wastewater are utilized in a gradient way, the pollution to the environment by the coal conversion wastewater is decreased, the caloric value of the wastewater is fully utilized, a large amount of slurry preparation water is saved, and the combustion and gasifying property of the coal water slurry is promoted.

The invention provides a method for implementing sludge reduction by taking advantage of a municipal sewage pipe network and relates to sludge reduction methods. The method solves the problems of large occupied land area, wide pollution range and high treatment expense caused by the existing sludge treatment. In the invention, a sludge transmission pipeline is arranged between a sewage treatment plant and an inspection pit of the municipal sewage pipe network, the microbial cells of the sludge in the sludge transmission pipeline are smashed; a bioreactor is arranged on an urban trunk sewer ortrunk pipe, aeration is implemented in the inspecton pit and the bioreactor, and the sludge smashed and reduced by the bioreactor is input to the sewage treatment plant. Compared with a traditional urban sewage treatment method, the invention has low cost, small investment, high efficiency and good treatment effect, relieves the load of subsequent processing technology, reduces the volume of subsequent treatment structure and lowers engineering cost. In appropriate conditions, the sludge possibly has zero growth or even negative growth and can be effectively reduced.

The invention relates to a new waste burning hot gas flow generate device which can solve the problems of the waste of our country with much water, lower heat quantity and large caloricity change. The invention can make innocent treatment on the waste and fully use the heat energy to improve the economic benefits of waste generates station. The invention comprises a solar energy collection system; a waste drying combustion adjuvant system; a wind collection burning hot air flow system; a heat energy storing and releasing system; a waste burning system; a hot air flow generating system; and the heat energy recycle system.

The invention relates to the technology of sludge pretreatment, and aims to provide a method of improving slurrying performance of sludge-coal water slurry (S-CWS) by sludge pretreatment. The method includes the following steps: 1) adding a conditioner to the sludge with uniform mixing, and irradiating the mixture by microwave, thereby improving physical and chemical characters of the sludge through the pretreatment; and 2) blending the pretreated sludge with coal powder, water and a coal water slurry additive to prepare the S-CWS, wherein the conditioner is a chlorine salt, addition amount being 0.5-1% by mass of the sludge, frequency of the microwave is 2450 MHz or 900 MHz and micro irradiation time is 0.5-3 min. The method is simple and turns waste into resources, has significant social and economic benefit and is an effective reduction, harmlessness and recovery utilization method. Through the conditioner and the microwave irradiation for co-pretreatment modification, the method is easy and convenient to carry out and has very significant effect, can greatly increase the concentration of the S-CWS and blending quantity of sludge, and reduces viscosity of the S-CWS.

This processing performance calculation unit (101) calculates the embedded device processing performance in the case of implementing a neural network having multiple layers. A request fulfillment determination unit (102) determines whether or not the embedded device processing performance in the case of implementing a neural network satisfies a requested processing performance. In the case that the request fulfillment determination unit (102) determines that the embedded device processing performance in the case of implementing a neural network does not satisfy the requested processing performance, a reduction layer indicating unit (103) indicates, on the basis of the processing amounts of each layer of the neural network, a reduction layer, which is a layer for reducing the processing amount, from among the multiple layers.

The invention discloses a method for removing heavy metal from lake deposit by using benthophyte. Aiming at the defect that a lake deposit heavy metal physical chemical restoring method in the prior art is high in cost and prone to cause secondary pollution, provided is a method for in-situ restoration on lake deposit heavy metal by using benthophyte. The method comprises: 1) detecting the contentof heavy metal in to-be-restored lake deposit; and 2) checking a heavy metal benthophyte restoration list according to the detection result, and plating benthophyte with corresponding varieties and quantity in the to-be-restored lake according to the checking result. Compared with other methods, the method is simple to operate and low in cost, doesn't cause any secondary pollution, and is eco-friendly.