53results about How to "Achieve the purpose of reducing" patented technology

The invention discloses compound bacteria for organic refuse deodorization and reduction and a preparation method thereof. The compound bacteria are mainly prepared by mixing the following raw materials in parts by weight: 10-20 parts of bacillus subtilis, 10-25 parts of bacillus licheniformis, 10-25 parts of saccharomyces cerevisiae, 5-15 parts of nitrobacteria, 8-20 parts of lactobacillus plantarum, 10-20 parts of thiobacillus denitrificans, 15-30 parts of streptomycete and 10-25 parts of trichoderma viride. The preparation method comprises the following steps: respectively inoculating each strain into a shake flask filled with a culture medium for activating and culturing, inoculating the cultured strains into a fermentation tank for performing fermentation and enlarged cultivation, dehydrating and drying various single strains obtained by enlarged cultivation to prepare hypopus microbial dried powder; and mixing to obtain the compound bacteria for organic refuse deodorization and reduction. The compound bacteria disclosed by the invention are used for organic refuse deodorization and reduction; and compared with the prior art, the compound bacteria have the advantages that the production investment is low, the production cost is low, the compound bacteria are pure green and environment-friendly, high in treatment effect, wide in adaptability and convenient to use, and the wastes can be changed into valuable materials.

The invention provides a device and method for treating domestic sewage by a short-cut denitrification-sludge fermentation coupled anaerobic ammonia oxidation system, and belongs to the field of sewage sludge biological treatment. The domestic sewage enters a sequencing batch SBR reactor through a water inlet pump, under the action of nitrifying bacteria, all ammonia nitrogen in influent water isconverted into nitrate nitrogen, effluent water enters an upflow anaerobic sludge blanket (UASB) reactor, remaining sludge is periodically added into the UASB reactor, short-cut denitrifying bacteriautilize organic matter generated by in-situ fermentation of the sludge to reduce the nitrate nitrogen in the influent water into nitrite nitrogen, the nitrite nitrogen and ammonia nitrogen generated by the in-situ fermentation of the sludge are reacted to form nitrogen and partial nitrate nitrogen under the action of anaerobic ammonium oxidizing bacteria on a filler, and in the whole process, thedenitrifying bacteria utilize the organic matter generated by the in-situ fermentation of the sludge to reduce the nitrate nitrogen and the remaining nitrite nitrogen into nitrogen. The device and method provided by the invention are suitable for treating the domestic sewage with a low C/N ratio, and can utilize short-cut denitrification-sludge fermentation coupled anaerobic ammonium oxidation torealize advanced denitrification of the domestic sewage and realize sludge reduction, thereby achieving the purpose of saving energy and reducing consumption.

The invention relates to a high-dryness filter and a method. The high-dryness filter comprises a cylinder body, a hydraulic cylinder and two crossbeam binders, wherein a plurality of foot box binders are welded on the bottoms of the two crossbeam binders respectively; lateral box binders are arranged at the positions, which are close to both ends, on the tops of the two crossbeam binders; the bottoms of the lateral box binders are welded on the two crossbeam binders respectively; guide rails are arranged at the positions, which are close to middle parts, on the two crossbeam binders; the cylinder body is arranged above the guide rails; the front and rear sides of the cylinder body are provided with a plurality of cylinder body support binders respectively; the bottoms of the cylinder body support binders are arranged on the guide rails through wheels; a fixed piston on the left side of the cylinder body is connected with the lateral box binder on the left side through welding; and a movable piston on the right side of the cylinder body is connected with a hydraulic rod of the hydraulic cylinder. The high-dryness filter has the advantages that: the solid content of mud cakes is improved, the automation degree is extremely high, and the energy consumption is extremely low; and the moisture content of the mud cakes is low, the mud cakes are convenient to transport and treat, and the aim of drying, and the aims of emission reduction and innocent treatment are also fulfilled.

The invention relates to a sludge treatment device based on electrolysis and pressure filtration technologies. The sludge treatment device is characterized in that the sludge treatment device is provided with a first-stage sludge pump, a flocculation reaction tank, a second-stage sludge pump, an electrolysis machine, an intermediate tank, a third-stage sludge pump, a sewage pump and a pressure filter, wherein an inlet of the flocculation reaction tank is linked with sludge outlets of the first-stage sludge pump and a secondary sedimentation tank of a sewage treatment plant through pipelines, an outlet of the flocculation reaction tank is linked with the inlet of electrolysis machine via the second-stage sludge pump, the outlet of the electrolysis machine is connected with the inlet of the intermediate tank, one line of the outlet of the intermediate tank is connected with the inlet of the pressure filter via the third-stage sludge pump, the other line of the outlet of the intermediate tank is connected with a water inlet of the secondary sedimentation tank via the sludge pump, and outlet water of the pressure filter is linked with the water inlet of the secondary sedimentation tank through the pipeline. A corresponding sludge treatment method comprises the steps of flocculation, sedimentation, electrolysis, settling separation and pressure filtration. The sludge treatment device and the corresponding sludge treatment method, disclosed by the invention, adopt electrolysis as pretreatment and further have the following prominent effects: (1) inhibiting and killing microorganisms and viruses in sludge; (2) deodorizing; (3) decomposing a large number of organic matters in the sludge; (4) decoloring; and (5) reducing the dosage of chemical agents in the follow-up sludge reduction process and reducing the sludge quantity by 30-45%.

The invention discloses a device and method for enhancing the reduction of denitrified coupling sludge in urban sewage by using intra-sludge carbon sources by two stages of sequencing batch reactors (SBR), belonging to the field of low C/N ratio(mole ratio) urban sewage treatment and excess sludge biochemical treatment. The device disclosed by the invention mainly comprises a SBR1, a SBR2 and a sequencing batch excess sludge fermentation reactor (SBRF). According to the invention, an excess sludge fermentation mixture is taken as a carbon source of SBR1 denitrification, so that biological denitrification is enhanced, and excess sludge is further reduced; deep denitrification is realized by taking excess sludge fermented liquid as a carbon source of SBR2 denitrification, so that discharged water can reach the level-A standard. According to the invention, an anaerobic biological treatment technology and an aerobic biological treatment technology are coupled so as to achieve the purposes of optimally controlling low C/N ratio (mole ratio) urban sewage treatment, saving carbon sources, improving the utilization rate of carbon sources, and reducing the yield of excess sludge. In addition, the device and method disclosed by the invention have the advantages of simple equipment, flexible operation, and the like.

The invention relates to a method for preparing an organic fertilizer for rice from kitchen waste and sawdust through combined composting, which specifically comprises the following steps of: sorting,leaching and drying original kitchen materials into granular kitchen raw materials with the water content of 10-30%, adding sawdust with the water content of lower than 10% and the particle size of 1-3cm into the granular kitchen raw materials, and adding a VT microbial agent into each cubic meter of compost, uniformly stirring and mixing, fermenting by adopting a strip-chopping type composting aerobic process, dynamically monitoring the temperature of the compost in the fermentation process, and stirring and turning the compost when the temperature rises to 65 DEG C or above, so as to reducethe temperature to 60 DEG C or below; maintaining the temperature of the high-temperature stage at 55-65 DEG C for 5-7 days, and quickly fermenting the strains in the high-temperature stage; and thenturning and stirring once every five days until the temperature of the pile body is reduced to the ambient temperature. The organic matter content of the fertilizer prepared through the method reaches 90% or above, the moisture content is lower than 25%, the nitrogen content is higher than 5%, and when the fertilizer is applied to a paddy field, the yield, taste and aroma of rice can be remarkably improved, and the yield is averagely improved by 20% or above.

The invention relates to a liftable medical nursing bed capable of using a motor to control automatic lifting of the bed surface, which comprises a pedestal and a bed frame, wherein a hinge lug connected with the lower parts of a front middle cross beam and a rear middle cross beam is hinged with two ends of an upper end shaft of an n-shaped support frame respectively and rotates around the two ends respectively; one end of a moment arm of the n-shaped support frame is hinged with four hinging bases positioned on a pedestal cross beam respectively and rotates around the hinging bases; the upper end shafts of the n-shaped support frame are provided with shaft connecting lugs at intervals; two ends of a synchronous support frame are connected with the shaft connecting lugs in the n-shaped support frame through a connecting shaft respectively; and the fixed end of a motor push rod retractable device is hinged with the hinging bases on the bed frame, while the retractable end is hinged with the hinging base on the cross beam at one end of the synchronous support frame. The liftable medical nursing bed has the advantages that a four-point hinge mechanism consists of the motor push rod retractable device, the n-shaped support frame and the synchronous support frame not only achieves the aim of using one motor push rod to control the rising and the falling of the whole bed frame, but also has stable and reliable rising and falling speed.

The invention discloses a mechanized sludge discharging and concentrating device for a small-sized movable sedimentation tank, which consists of an oil storage tank automatic sludge discharging device A and a sludge concentrating device B and is characterized in that the oil storage tank automatic sludge discharging device A and the sludge concentrating device B respectively consist of two relatively independent movable prying blocks; each prying block has the size of 6,500mm*2,300mm*3,500mm; and the prying blocks are connected through hoses with rapid joints. By adopting the device, the aims of sludge discharging compatibilization of an oil tank and treatment of concentrating the sludge in the tank can be simultaneously fulfilled.

The invention discloses a rotary oily sludge treatment system and method. The rotary oily sludge treatment system comprises a feeding screw conveyor, a rotary pyrolysis furnace and a discharging screwconveyor. The rotary pyrolysis furnace sequentially comprises a feeding section, a first transmission section, a pyrolysis section, a second transmission section and a discharging section in the length direction. A feeding airlock is arranged between the feeding section and the discharging end of the feeding spiral conveyor; the first transmission section comprises a first scale sealing structureand a first transmission gear set, the feeding section is connected with the first transmission section through the first scale sealing structure, and the first transmission gear set is connected with a driving motor; the pyrolysis section comprises a heating chamber and a pyrolysis cavity, and the heating chamber is arranged outside the pyrolysis cavity and spaced from the pyrolysis cavity; thesecond transmission section comprises a second scale sealing structure and a second transmission gear set; the discharging section is connected with the second transmission section through a second scale sealing structure; a discharging airlock is arranged between the feeding end of the discharging spiral conveyor and a pyrolysis solid product outlet.

The invention provides an advanced treatment process for thallium-containing wastewater, belonging to the technical field of wastewater treatment. According to the invention, evaporation desalination,chemical oxidation, flocculent precipitation and resin adsorption technologies are adopted in a combined manner, so efficient thallium removal and desalination can be synchronously realized and a thallium emission concentration can be stably lower than 2 [mu]g/L, and thud, the method is particularly suitable for treating high-salt thallium-containing wastewater; meanwhile, the consumption of an oxidant and a flocculation precipitant, the generation amount of hazardous wastes and treatment cost in the thallium removal process can be remarkably reduced; in addition, waste acid and waste alkaligenerated in resin backwashing regeneration and transformation can be returned to the treatment process for reutilization so as to achieve reduction; and the wastewater treated through the process canserve as production water or cooling circulating water and be returned to a treatment system for use so as to achieve closed circulation of the production water.

The invention discloses a sludge reduction method by using ozone. The sludge reduction method comprises the following steps of (1) filtering of sewage; (2) aeration treatment of sewage; (3) settling and separation of the sludge; (4) ozone treatment of the sludge. The sludge reduction method has the advantages that the structure is simple, and the practicality is strong; by utilizing the ozone technique, the net sludge increasing amount is equal to the inorganic sludge amount in the sewage treatment process, so that the purpose of reducing the remained sludge is realized; in addition, the working efficiency is high, the energy loss is low, the secondary pollution is avoided, the reduction effect of the sludge is obvious, and the comprehensive utilization rate is effectively improved.

The present invention relates to sewage treating biological apparatus, and is especially one kind of vertically flowing composite biological sewage reducing reactor and its operation process. The vertically flowing composite biological sewage reducing reactor is separated with partition boards into three parts, including free protozoan/metazoan growth area, attached protozoan/metazoan growth arean and solid-liquid separating area. The vertically flowing composite biological sewage reducing reactor provides different protozoan/metazoan with proper habitat for stable growth, and thus has effectively raised sewage reducing effect. The present invention may be used in the reducing treatment of residual sewage from biological sewage treating system and in the treatment of reflux sewage in conventional active sewage treating system.

The invention provides a coal chemical wastewater biological treatment system based on sludge catalytic ozonation and a treatment method thereof. The system comprises an anoxic/aerobic biological treatment system for first-grade predenitrification, a sludge catalytic ozonation multiphase reaction system and a second-grade anoxic denitrification/aerobic biological treatment system. The method comprises the following steps: subjecting to-be-treated coal chemical wastewater to anoxic/aerobic biological treatment of first-grade predenitrification, subjecting one part of treated sludge to refuxing and the other part of the treated sludge to ozone catalytic digestion, mixing a supernatant generated by ozone catalytic digestion with the sewage obtained by anoxic/aerobic biological treatment of first-grade predenitrification, and subjecting the obtained mixture to second-grade anoxic denitrification/aerobic biological treatment so as to obtain effluent water, wherein tail gas generated by catalytic digestion is used for aeration treatment for second-grade anoxic denitrification/aerobic biological treatment. According to the invention, a sludge catalytic ozonation multiphase reactor is adopted, so highly-efficient and low-cost oxidation digestion of the sludge can be realized, and functions of a novel method are guaranteed to be realized.

The invention relates to the technical field of coal bed methane mining fracturing, in particular to a method for verifying an extension length of a main crack of fracturing in coal bed methane wells.The problem of determining an accurate length range of fracturing cracks in the exploration and mining processes of coal bed methane is solved. The method for verifying the extension length of the main crack of fracturing in the coal bed methane wells comprises the steps that first, by combining with the project progress of a coal mine, ground coal bed methane wells are laid in advance, fracturing sand and fracturing fluid after transformed by a fluorescer are pressed into coal beds during fracturing construction, in a fracturing process, a general position of the main crack is judged by utilizing a micro-seismic crack monitoring technology on the ground, ultraviolet searchlights for the coal mine are laid in front of a stope face, an irradiation range is required to cover a working face,bright color areas are displayed through irradiation, then data are collected, a precise influence length of the crack is obtained after calculation, and through comparative analysis of the data andground measurement data, error analysis can be conducted on the ground measurement data so as to improve the accuracy of the ground measurement data.

The invention relates to the field of kitchen waste treatment, in particular to a kitchen waste treatment process which comprises the following steps that S1, food waste in kitchen waste is received through a food waste receiving system, and kitchen waste in the kitchen waste is received through a kitchen waste receiving system; s2, treating the received food waste through a food pretreatment system to obtain crude oil, organic solid residues, impurities and organic feed liquid; the method comprises the following steps: treating received kitchen garbage through a kitchen garbage pretreatment system to obtain crude oil, organic solid residues, impurities and organic feed liquid; therefore, the extraction rate of grease in the food waste with large grease content is greatly improved, organic solid residues produced after grease extraction of a huge amount of the food waste are treated by a biological composting system, the water content in the kitchen waste is greatly reduced, the purpose of reduction is achieved, the organic solid residues are well utilized, and the production cost is reduced. Therefore, cyclic utilization of resources is realized.

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.

The invention discloses a sludge solar enhanced biological treatment process and device. The process includes the steps as follows: 1) mixing dewatered sludge of moisture content below 80%, a conditioner and an aerobic biological agent for oxidative decomposition of sludge in a raw material mixing and blending system, and adjusting the sludge moisture content to below 70%; 2) sending the mixture obtained in the step 1) to a solar enhanced biological treatment system, and reducing the moisture content to below 40%; and 3) sending the mixture obtained in the step 2) into a crushing and screening system for fermentation, and grading the sludge. The sludge solar enhanced biological treatment process conducts treatment on residual sludge generated in a sewage plant, and meets the environmental requirements of the country or region planning.

The invention discloses a sludge biochemical treatment system. The sludge biochemical treatment system comprises a sludge treatment device, a sludge concentrating tank, a homogenizing conditioning tank, a neutralizing tank, a primary settling tank, an anaerobic tank, a first aerobic tank, a secondary settling tank, a secondary aerobic tank, a final settling tank, an air floating tank, a pressure filter and a monitoring tank; the sludge concentration tank, the homogenizing conditioning tank, the neutralizing tank, the primary settling tank, the anaerobic tank, the first aerobic tank, the secondary settling tank, the secondary aerobic tank, the final settling tank, the air floating tank and the monitoring tank are connected in sequence; the pressure filter is connected with the first aerobic tank; and the sludge concentration tank is connected with the anaerobic tank, the secondary settling tank and the final settling tank. The sludge biochemical treatment system further comprises a collecting tank that is arranged between the sludge concentration tank and the homogenizing conditioning tank. With the adoption of the sludge biochemical treatment system and method, mass production is realized, the sludge quantity is effectively decreased, the water content of a filter cake is reduced, the amount of added flocculating agents is lowered down, the energy consumption in production process is reduced, and circular processing can be carried out at a plurality of times.

The invention discloses a stripping-controllable heat-sealing film for sterilizing and packaging medical instruments and a preparation method of the heat-sealing film, and the heat-sealing film can beheat-sealed with medical dialyzing paper base paper or coating dialyzing paper (6) to prepare a paper-plastic bag for sterilizing and packaging the medical instruments. The opening stripping force and the opening interface of the paper-plastic bag are controllable, and the sealing integrity of the paper-plastic bag can be judged through layer separation and color change on the film at the stripping position; wherein the PET plastic base film (1) is divided into a front surface and a back surface, and the front surface is a printable surface (2); the back surface is a heat-seal layer (3); andthe heat-seal layer (3) consists of a bottom coating (4) coated on the PET plastic base film (1) and a surface adhesive layer (5) coated on the bottom coating (4). And sequentially coating the selected bottom coating (4) and surface adhesive layer (5) on the reverse side of the PET plastic base film by using an anilox roller coating machine, and slitting and packaging after the PET plastic base film is qualified, thereby obtaining the product.

The invention relates to a method of reducing sludge of petrochemical wastewater by aerating combination of ozone and pure oxygen, belonging to the technical field of environmental engineering. Aiming at the characteristics of petrochemical wastewater, sludge of petrochemical wastewater is reduced by controlling ozone oxidization and pure oxygen aeration by adopting a special process condition. Ozone oxidization treatment is carried out according to 40-50% of a theoretical output of residual sludge, and the oxidization time is controlled within 28-35 minutes, so that the field sludge reduction efficiency is controlled within 72.7-81.5%. Meanwhile, COD (Chemical Oxygen Demand) of effluent reaches the standard, so that the sludge is reduced, while the method is high in treatment efficiency, low in energy consumption and low in operating cost.

The invention belongs to the technical field of magnesium alloy surface treatment, and particularly discloses a method for performing anticorrosive treatment on the surface of a magnesium alloy with recovered carbon dioxide. By taking recovered carbon dioxide as a raw material, the method is characterized by comprising the following steps: introducing carbon dioxide into water to prepare a carbonic acid water solution, soaking a magnesium alloy material in the obtained carbonic acid water solution, and ensuring that a basic aluminum magnesium carbonate film is generated on the surface of the magnesium alloy. According to the invention, the steps are simple, the raw material is accessible, the corrosion resistance of the magnesium alloy material can be effectively increased, and the recovered carbon dioxide is reasonably utilized, thus achieving the purpose of recycling carbon dioxide. Besides, the method disclosed by the invention decreases the carbon footprint of a magnesium alloy product and is suitable for wide popularization and application.

The invention provides a circulating water digital on-line monitoring control device which comprises a chemical control device, a circulating water tank, a cooling tower, a circulating pipeline and aheat exchanger, the circulating water tank is communicated with the cooling tower and connected with the heat exchanger through the circulating pipeline, and the chemical control device is connected with the circulating water tank and used for feeding chemicals into the circulating water tank. Circulating water is treated in the circulating water tank, enters the heat exchanger through the circulating pipeline for heat exchange, flows into the cooling tower for cooling and then returns to the circulating water tank. The circulating water digital on-line monitoring control device is used for monitoring and controlling the water quantity, the chemical dosage, the water quality and the dirt thermal resistance of the heat exchanger, the concentration ratio of circulating water is controlled byautomatically adjusting the chemical adding amount, the purpose of reducing the amount of circulating water and sewage is achieved, and through circulating water sewage pretreatment, circulating water sewage advanced treatment and recycling and tail end wastewater rotational flow atomization evaporation treatment, economical zero discharge of wastewater is effectively realized.