38results about How to "No secondary pollution will occur" patented technology

A process for cleaning the waste gas containing high-concentration NOx includes such steps as gathering the fume, coming in rotary filler bed, diffusing into rotary filler, spraying the absorptive liquid to filler, countercurrent absorption, mixing the treated gas with oxidant to oxidize NO to NO2, coming in rotary filler bed, absorbing by absorptive liquid, defrosting, and exhausting. Said absorptive liquid can be cyclically used. Its apparatus is also disclosed.

An antibacterial urinary catheter with nano-structure is composed of a basic catheter made of conventional rubber, and a surface layer which is prepared from nano-Ag (or nano-Ti), ammonia water, diffusing agent and silica gel (or latex). Its preparing process is also disclosed.

The invention provides a technology and a device for treating organic waste gas with activated carbon by means of nitrogen heating and vacuum desorption. The technology is characterized by including a pretreatment stage, an adsorption stage, a desorption stage and a recycling stage. The device comprises an adsorber, a heater, a vacuum pump, a condenser and a recycling tank. The technology and the device have the advantages that the technology and the device are different from existing waste gas treatment by means of steam desorption, nitrogen heating desorption and vacuum desorption are combined with each other, accordingly, the desorption efficiency can be enhanced, steam consumption can be reduced to a great extent, and a large quantity of wastewater and secondary pollution can be prevented; granular activated carbon in the adsorber does not need to be dried and regenerated, accordingly, the technology and the device are free of steam consumption and wastewater pollution, low in energy consumption and high in desorption efficiency, and are environmental friendly, energy can be saved, excellent desorption effects can be realized, the organic waste gas treatment cost can be reduced, the technology is simple, and requirements of discharge standards can be met after the waste gas is treated by the aid of the technology and the device.

The present invention belongs to the field of food processing, and particularly relates to a method for preparing black sugar. The method comprises the steps of pre-treating sugarcane, cleaning the sugarcane, peeling the sugarcane, squeezing the sugarcane into juice, heating the juice to sterilize the juice, filtering the juice, concentrating the juice, subjecting the juice to enzymatic hydrolysis reaction, concentrating the juice for a second time, conducting the thermal reaction, subjecting an obtained product to dehumidification reaction, packing the finished product and the like. According to the technical scheme of the method for preparing black sugar, firstly, the squeezing and concentrating operation is conducted, and then the enzymatic hydrolysis reaction is conducted. After that, the concentrating and heating operation is conducted to obtain black sugar. In this way, the drying and the crystallizing are not required, and a standard purification plant is established. The secondary pollution of the obtained product is avoided, so that the finished product is cleaner. Each step is conducted according to a strict process flow for production, incoming inspection, production inspection and finished product inspection, so that the product is safer. The majority of nutrient substances in the sugarcane is maintained, and the black sugar is higher in medicinal value.

The invention provides a calcium bicarbonate modified diatomite adsorbent. The calcium bicarbonate modified diatomite adsorbent consists of diatomite, sodium bicarbonate, a saturated calcium chloride solution, activated clay, and polyacrylamide. A preparation method of the calcium bicarbonate modified diatomite adsorbent comprises the following steps: adding metered diatomite to a prepared sodium bicarbonate solution, slowly adding the saturated calcium chloride solution, the activated clay and the like while stirring, filtering after the completion of reaction, arranging in an oven and drying under the condition of 105 DEG C to obtain the calcium bicarbonate modified diatomite.

The invention discloses a device and method for purifying waste gas containing VOCs by a membrane aeration biological membrane reactor. A biological reaction module 14 of the device is connected witha purified gas collecting device 7 and a liquid storage base 6; the biological reaction module 14 comprises a tubular biological reaction tower body 1; a membrane aeration air inlet pipe 10 is arranged at the upper part of the tubular biological reaction tower body; the membrane aeration air outlet pipe 11 is arranged at the lower part of the tubular biological reaction tower body; two ends of a hollow fiber membrane module 2 are separately connected with the membrane aeration air inlet pipe 10 and the membrane aeration air outlet pipe 11; a nutrient solution spraying device 5 is arranged above the hollow fiber membrane module 2; a waste gas source containing VOCs is connected with a waste gas flowmeter 15 through a pipeline, and then is connected with the membrane aeration air inlet pipe10 and one end of a waste gas inlet pipeline 8; and the other end of the waste gas inlet pipeline 8 is arranged in a manner of running through the side wall of the liquid storage base 6. The device provided by the invention has a simple structure and low running cost, and the method provided by the invention has no secondary pollution and low energy consumption.

The invention discloses a catalyst for preparing hydrogen by reforming the by-product glycerine vapour of biological diesel oil and a preparation method thereof. The ingredients of the catalyst include 30-70 weight percent of bentonite, 5-20 weight percent of NiO and 5-15 weight percent of CuO. The catalyst prepared by such method has the advantages of that the reaction activity of preparation of hydrogen by glycerine vapour reforming is relatively high, the activity grows following the increase of temperature, the yield of hydrogen and carbon dioxide is increased and the quantity of carbon accumulation is lowered. The raw materials are mainly minerals and compounds which are cheap and abundant; the preparation process is simple, and the cost is low. In addition, the long-term storage or direct abandonment of the catalyst does not incur secondary pollution, therefore, the catalyst is environment-friendly.

The invention relates to an intelligent automatic washing machine. A motor is installed in a cavity formed by a control panel, a door cover plate, an upper frame and a shell; the motor is connected with a shaft body through a belt and a belt pulley; the shaft body is connected with an impeller to form a transmission device; a drain valve, a drain pipe and an electromagnetic water pump or a retractor compose a drain device; the shell is formed by connecting a vat and a base; the upper frame is connected with a spray device; and a computer control board is installed on the control panel. A washing program comprises the following steps: water intake: opening an intake valve by the computer control board for water intake; washing: after the quantity of water intake reaches a set standard, stopping water intake and starting washing; draining: after washing, draining water out of the vat; repeating the process for 2-3 times; and spray washing and draining: washing by a sprayer at the top and draining at the bottom according to the washing program synchronously for 1-2 minutes. The invention cancels a dewatering program and adds a spray washing and draining program, thereby reducing the number of clutches and saving water; the shell is a single vat, thereby reducing the number of parts, reducing cost and eliminating the secondary pollution; and the single-vat full automatic washing machine reduces the labor intensity of users.

The invention discloses a green process for recovering yellow phosphorus from phosphorus mud. The process comprises the following steps: step 1, putting the phosphorus mud into warm water to completely immerse the phosphorus mud in the water; step 2, adding ethanol, performing stirring, and controlling reaction temperature at 44.1-78.4 DEG C; step 3, after standing is completed, allowing a stratified liquid to appear, and respectively taking an upper-layer, middle-layer and lower-layer material; step 4, performing recycling on the liquid yellow phosphorus in the middle layer, and performing storage; step 5, washing the black residues in the lower layer by using hot water, and collecting a washing liquid; and step 6, performing extraction on the washing liquid by using ethanol, and collecting the liquid yellow phosphorus. When the process provided by the invention is adopted to recover the yellow phosphorus, the recovery rate of the yellow phosphorus is improved; and the process for recovering the yellow phosphorus is a green process, and has no secondary pollution.

The invention provides an amino porous material and a preparation method and application thereof. The preparation method comprises the following steps: wetting a rigid material with a polyethyleneimine solution and filling and accumulating gaps of the rigid material; fully crosslinking by adding a crosslinking agent solution, or mixing the polyethylenimine solution with a crosslinking agent to obtain a mixture, and adding the rigid material into the mixture; then dewatering and drying by a water pump to volatilize water in the gaps; during dewatering, acting polyethyleneimine and the cross-linking agent to form a network which sleeves the surface of the rigid material component; and drying to obtain the amino porous material. The porous material can be directly used as a block material toadsorb various acid gases, organic acids, anionic direct dyes and reactive dyes, and can also be crushed and packed for use. Compared with the prior art, the amino porous material has the characteristics of green production, high mechanical strength, easiness in regeneration and the like.

The invention discloses a smoke desulfurization method for a coal-fired boiler. The smoke desulfurization method comprises the following steps that: firstly, non-desulfurized smoke generated in the coal-fired boiler is introduced into a flue by a high-voltage electrostatic precipitator; secondly, smoke generated in a soda recovery furnace is introduced into the flue in the first step by virtue of another high-voltage electrostatic precipitator; and thirdly, after the smoke generated in the coal-fired boiler and the soda recovery furnace in the first and second steps simultaneously enter the common flue and then are fully mixed and reacted, the reacted smoke is discharged from the flue by a draught fan. The smoke desulfurization method has the beneficial effects that the input is small, the desulfurization cost is low, secondary pollution is avoided, the aim of treating wastes with wastes is achieved by utilizing waste gas discharged from the soda recovery furnace to perform the desulfurization, the effect is optimal, the economic benefits are remarkable, and thus the method is the optimal method which can not be replaced by other desulfurization methods.

The invention relates to a belt-type fermented material sheeter which can continuously and stably roll high-water-content organic materials into sheets. The belt-type fermented material sheeter comprises a rack, a driving device, an upper pressing belt driving roller, a lower pressing belt driving roller, an upper pressing belt redirecting roller, a lower pressing belt redirecting roller, a distribution device, a discharging scraper, an upper pressing belt wound between the upper pressing belt driving roller and the upper pressing belt redirecting roller and a lower pressing belt wound between the lower pressing belt driving roller and the lower pressing belt redirecting roller, wherein the driving device, the upper pressing belt driving roller, the lower pressing belt driving roller, the upper pressing belt redirecting roller, the lower pressing belt redirecting roller, the distribution device and the discharging scraper are mounted on the rack. The driving device is in transmission connection with the upper pressing belt driving roller and the lower pressing belt driving roller. The upper pressing belt driving roller, the upper pressing belt redirecting roller and the upper pressing belt are mounted above the lower pressing belt driving roller, the lower pressing belt redirecting roller and the lower pressing belt. The distribution device is mounted above an upper belt body of the upper pressing belt or above an upper belt body of the lower pressing belt. The discharging scraper is tangent to the surface of the upper pressing belt and the surface of the lower pressing belt in the direction of the tangential line of the outer circumference of the upper pressing belt driving roller and the direction of the tangential line of the outer circumference of the lower pressing belt driving roller respectively.