651results about How to "Good purification effect" patented technology

The invention provides a thick coating material capable of purifying air and a preparation method thereof, belonging to the building material field. An internal wall coating decorative material comprises 5 to 40 weight portions of a porous absorbing material and 10 to 40 weight portions of a composite photocatalysis material in every 100 weight portion of the paint. In the preparation method, the coating material, is formed by compounding a mineral material with the nanometer photocatalysis material to obtain a high activity purifying material, matching the high activity purifying material with other nanometer materials and the porous absorbing material, and then adding an inorganic filling material, a skeletal material and other addition agents, can remove harmful gases such as formaldehyde and toluol in air and has the environmental protection function. The paint has good effect for removing formaldehyde, is effective continuously, has certain thickness when the coating layer is used, has simple construction, and beautiful and elegant patterns, is well-bedded, is strong in the three-dimension effect and has good decorative effect.

The invention relates to a multifunctional ecological purification system for large-scale circulation breeding water, which is used for exchanging water in a pond and purifying the breeding wastewater in the pond. The purification system comprises an efficient precipitation and filtration region, an ecological breeding purification region, an artificial wetland purification region, a water collecting pond and an automatic water quality monitoring and regulating device, wherein the efficient precipitation and filtration region, the ecological breeding purification region and the artificial wetland purification region are used for purifying a water body, and the automatic water quality monitoring and regulating device is used for monitoring the quality of the water body in the purification system and controlling operation of the purification system. Compared with the prior art, the system can be used for automatically monitoring the water quality in the system, so that water in the pond can satisfy the requirements of aquaculture water after being subjected to circulation treatment of the purification system. Meanwhile, aquatic animals and plants and bottom mud generated in the purification system can be recycled. The system provided by the invention can be applied to purifying large-scale aquaculture wastewater and has good economic and environmental benefits.

The invention relates to a gas turbine generating coke oven gas comprehensive purification system and a purification method thereof. The gas turbine generating coke oven gas comprehensive purification system is characterized in that coke oven gas in a gas pipe enters into a gas turbine by virtue of a desulphurization system, a compressor filtering system and a coal oven gas filtering system sequentially, wherein the desulphurization system is formed by connecting four dry desulphurizing towers on the gas pipe in parallel, and the compressor filtering system is formed by connecting four compressor filters on a first gas pipe from the desulphurization system in series; and the purification method utilizing the coke oven gas comprehensive purification system comprises the following steps of: a, desulphurizing coal oven gas; b, filtering and compressing the coal oven gas obtained by the step a; c, carrying out isobaric warming on the coal oven gas obtained by the step b; d, carrying out primary filtering on the coal oven gas obtained by the step c; and e, carrying out fine filtering on the coal oven gas obtained by the step d, so that the coal oven gas meeting the requirement of a gas turbine is obtained. According to the gas turbine generating coke oven gas comprehensive purification system provided by the invention, on the basis of crude benzene purification treatment, four dry desulphurization towers are additionally arranged, a desulphurization effect is good, the compressor filtering system and the coal oven gas filtering system are optimized, and quality of the coal oven gas is improved.

The invention discloses an acidolysis prepared biomass adsorbent which comprises the following steps: firstly, waste biomass is dried, crushed, and screened from 20-mesh to 80-mesh; secondly, the screened waste biomass is put into a reactor, hydrochloric acid solution of 0.5-6.0 mol/L is added, and the weight percentage of the biomass is 1 to 10 percent; thirdly, the acidolysis lasts for 1 to 12 hours at 70-100 DEG C, and the processed product is washed, filtered, dried, crushed and screened from 20-mesh to 100-mesh, thereby preparing the biomass adsorbent; fourthly, the prepared biomass adsorbent is used for removing persistent organic pollutants in waste water or drinking source water, and the processed biomass adsorbent is regenerated and recycled at 200-400 DEG C and under the restrictive oxygen condition. The acidolysis prepared biomass adsorbent belongs to the second reclamation of the agricultural byproduct waste, and has the remarkable advantages that the prepared material comes from the nature, the reserves are rich, no toxic action exists, the preparation flow is simple, the cost is low, the purification efficiency of the adsorption material is obvious, and the recovery and the reuse after the adsorption treatment are easy.

The invention discloses a purifying treatment agent for coal-washing wastewater and a preparation method thereof. The purifying treatment agent is prepared from the following materials in parts by weight: 30-40 parts of sepiolite, 15-20 parts of montmorillonite, 10-15 parts of medical stone, 15-20 parts of polyacrylamide, 5-10 parts of sodium polyacrylate, 3-6 parts of aluminium polychlorid, 2-4 parts of sodium lignin sulfonate, 3-5 parts of alum powder, 6-9 parts of ferrous sulfate, 8-12 parts of guar gum powder, 5-10 parts of nano carbon, 4-8 parts of porous calcium phosphate, 10-15 parts of carboxymethyl chitosan, 5-10 parts of sodium alginate, 2-3 parts of span-80, 1-2 parts of sodium lauryl sulfate, 1-2 parts of stearic acid and 0.5-1 parts of gamma-aminopropyltriethoxysilane. The purifying treatment agent disclosed by the invention has the advantages that the flocculation effect is good, impurity particles in coal-washing water can be rapidly agglutinate and settled, simultaneously heavy-metal elements in the coal-washing water can be absorbed, the purifying effect is very obvious, the water purifying effect is 4-6 times of that of the common flocculating agent; and the used amount is less, the efficiency is high, the cost is low, the benefit is high, the complete environmental-friendly effect is achieved and the application prospect is wide.

The invention discloses a method for detecting the organophosphorus pesticide residue in the tobacco, comprising the following steps of preprocessing by adding water of 5-15 times the weight of the tobacco sample to the tobacco sample to sock the tobacco sample, adding 10-20 ml of extracting agent to each gram of the tobacco sample to extract the tobacco sample, centrifuging to obtain organic-phase supernatant, purifying the organic-phase supernatant, concentrating the organic-phase supernatant by blowing with nitrogen, adding acetone solution to the organic-phase supernatant, and filtering the organic-phase supernatant with a organic-phase filtering membrane of 0.2 Mum to obtain the sample solution, wherein the extracting agent is the mixed solution of acetonitrile and acetone which are at the volume ratio of 1-2:1; and detecting the organophosphorus pesticide residue in the sample solution with gas chromatography and mass spectroscopy by using the chlorazol phosphorus as the internal standard substance after finishing preprocessing. Because the extracting agent is used for extracting in the preprocessing step, the target substance in the tobacco sample can be effectively extracted into the organic phase, and the precision for detecting the organophosphorus pesticide residue in the tobacco can be greatly improved.

The invention discloses a Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent and a preparation method thereof. The Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent comprises a component A and a component B, wherein the component A comprises the sub-component of: an effective active ingredient formed by carrying out alcohol extraction and water extraction on drying powder of eight Chinese herbal medicines, and the component B comprises the sub-component of: nanometer silver-loaded titanium dioxide dispersion colloid; and the component A and the component B are highly dispersed and emulsified, adsorbed and assembled to form stable nanometer dispersoids. The Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent is a multi-component complex with sterilization, anti-virus and mildproof functions so that the superposition and synergism effect of the Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent is greatly enhanced; the Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent has fairly strong capability of adsorbing and catching harmful substances such as influenza viruses and bacteria carried secretly during breathing and sneezing of people and livestock, particles and dust; the influenza viruses can be immediately killed when being in contact with Chinese herbal medicines active substances and nanometer silver-loaded materials; and the Chinese herbal medicine nanometer silver-loaded titanium dioxide air cleaning agent has a very remarkable indoor and outdoor air purification effect and is an ideal, green, safe and effective anti-influenza virus air cleaning agent.

The invention belongs to a medlar general flavone extracting and purifying technology and a medlar general flavone detecting method as well as applications of medlar general flavone. At present, the method for preparing medlar general flavones comprises a reflux extracting method, an ultrasonic wave extracting method and a microwave extracting method. According to the extracting and preparing method of flavones in medlar leaves disclosed in 201010542616.3, a colloid breaking-in technique, a high-pressure homogenizing technique and a membrane separation and combination application technique are adopted, and the preparation is complex and long time is consumed. The invention aims to research the medlar general flavone extracting and purifying technology, the medlar general flavone detecting method as well as applications of the medlar general flavone. The technical scheme provided by the invention comprises the following steps of conducting an extracting technology: drying and crushing medlar, adding alcohol, extracting and combining filter liquor, concentrating, and extracting, thereby obtaining a medlar flavone rough extract; and conducting an extracting and purifying technology: purifying the rough extract by adopting porous resin D101, and further purifying the flavones by adopting polyamide. The medlar general flavone extracting and purifying technology, the medlar general flavone detecting method as well as applications of the medlar general flavone provided by the invention have the effects that general flavones are extracted as well as polysaccharide is obtained, effective ingredients of medlar are extracted fully, and foundation for large-scale industrial production is laid.

The invention discloses a rare earth perovskite type oxide catalyst and a preparation method thereof. The general formula of the catalyst is La1-xCuxBO3, wherein x is within 0.05 to 0.5, and B is Fe, Co, Ni, Cr and Mn or the combination thereof. Nitrates of elements that La, Cu and B stand for are dissolved into water to form mixed solution, ammonia water is added after citric acid is added and dissolved, the mixed solution is then heated into wet gel, the wet gel is dried into dried gel, the dried gel is heated for spontaneous combustion, and obtained ash powder is roasted into the rare earth perovskite type oxide catalyst. The elements La and Cu in the catalyst are located at the position A of the perovskite type structure, and the elements Fe, Co, Ni, Cr or Mn are located at the position B. The oxide catalyst has ideal purifying effect for NO, CO and HC in tail gas of an internal combustion engine.

This invention relates to a method for preparing aqueous PVDC emulsion antirust primer. The antirust primer comprises: OVDC copolymer emulsion 100 parts, tannic acid 0.5-5 parts, phosphoric acid 0.1-6 parts, and isopropanol 5-20 parts. The PVDC copolymer emulsion is prepared by emulsion-copolymerization of VDC and copolymerizable monomer in the presence of nonionic emulsifier and initiator. The antirust primer can dissolve the rust on the surface to be coated, and can clean the surface. The antirust primer does not precipitate on the coated surface, and can intimately adhere to the surface. The formed film has good obstacle effect on water and oxygen. The antirust primer can be used as protective antirust primer for metals.

The invention discloses graphene sewage purifying agent, which is prepared from bentonite, diatomite, graphene and synergist through a conventional mixing method, wherein the mass part of the components is as follows: 20-50 parts of bentonite, 40-60 parts of diatomite, 20-30 parts of graphene, and 5-10 parts of synergist. The synergist comprises one type or multiple types from polymeric ferric sulfate, polymeric aluminium chloride and polyacrylamide. The graphene sewage purifying agent has the advantages of extensive material sources, simple preparation process and low cost, can efficiently purify the sewage when being added into the sewage as per the proportion, and has no secondary pollution.

The invention discloses an air purifying material of microorganism absorption degradation, a preparation method and applications thereof. The air purifying material of microorganism absorption degradation is obtained by embedding biological grains with 2 to 4mm grain diameter of pseudomonades or acinetobacter which are cultured and acclimatized in a crosswise way in calcium alginate gel. The air purifying material of microorganism absorption degradation can be used in the long time purification of formaldehyde and benzene series pollution in rooms with obvious effect. The product has the advantages of high activity of immobilized cells, good stability, effectively reducing the content of chemical pollution of formaldehyde and benzene series pollution in rooms, being beneficial for realizing the recycling, regenerating and reusing of biocatalysts, and seriously avoiding the pollution to room environment by microorganisms. The raw material has low cost, the preparation process is simple, easy and convenient in operation, and product can be applied in different reactors.

The invention relates to a method for simultaneously measuring residual quantities of lincomycin and macrolides in royal jelly by a liquid chromatography and a tandem mass spectrometer. Currently, the prior method can not achieve the goals of low detection cost and a detection limit less than 1 mu g/kg. The method comprises the steps of standard solution preparation, royal jelly sample treatment,standard curve making and royal jelly sample detection; in the step of royal jelly sample treatment, acetonitrile ammonia water with the volume concentration of 97% is used as the extracting solution, residues in a 50 ml glass centrifuge bottle after vacuum concentration are transferred by a phosphate buffer solution and mixed with ethyl acetate so as to carry out extraction; and finally, the detection sample solution is measured by a high performance liquid chromatograph and a ternary quadrupole tandem mass spectrometer to obtain the residual quantities of lincomycin and macrolides in royal jelly. The invention has the advantages of low detection cost and high detection efficiency, the detection limit reaches 0.2-0.9 mu g/kg, and the linearly related coefficient is 0.9914-0.9994.

The invention discloses a self-purification type air purifier, and belongs to the field of air purifiers. The self-purification type air purifier comprises a primary filter net, an electrostatic dust collector located above the primary filter net and a control cabinet electrically connected with the electrostatic dust collector; the side face of the primary filter net and the side face of the electrostatic dust collector are each provided with a spraying device and a heating device, and the control cabinet is electrically connected with the spraying devices and the heating devices; the control cabinet controls the spraying devices to flush the primary filter net and the electrostatic dust collector, and the control cabinet controls the heating devices to dry the primary filter net and the electrostatic dust collector; according to the self-purification type air purifier, a cleaning device is arranged to be capable of effectively removing pollutants gathered on the electrostatic dust collector, the primary filter net and other components, the harmful effect caused by covering of the pollutants on the electrostatic dust collector, the primary filter net and other components can be removed, and the service life of the air purifier is prolonged.

The invention discloses a method for building an ecological littoral zone in a buffer area. The method comprises building of gabions, a low pond, multiple ponds and a retention canal. The method comprises the following specific steps: (1) a gabion area is built, wherein the gabions are built between a normal water level of a river and a level of a flood occurring every two years, and emergent aquatic plants are planted in gaps between the gabions; (2) the low pond is built, wherein a low area which is 20cm lower than the gabion area and 20cm lower than foundations of the multiple ponds is built between the level of the flood occurring every two years and the level of a flood occurring every twenty years; (3) a multi-pond system is built, wherein two rows of pond systems are built in the low pond area, substrate improvement is conducted, submerged plants are closely planted in the ponds, and the emergent aquatic plants are planted on the foundations and the circumferences of the ponds; (4) the retention canal is built, wherein the retention canal is built along the outside of the level of the flood occurring every twenty years. The method effectively solves the ecological problems that a surface source of a gentle slope area of the river is severely polluted, landscapes are poor, the biodiversity is reduced and water and soil loss occurs, and offers a feasible and efficient ecological restoration measure for recovery and reconstruction of a hydro-fluctuation belt.

The invention provides a composite material with formaldehyde purification function, which is prepared by dissolving 45-73 parts by weight of powder with formaldehyde purification function, and one or both of 0.15-1.2 parts by weight of reinforcing fiber and 15-20 parts by weight of filling material in 20-40 parts of compound solution. The powder with formaldehyde purification function is prepared by mixing 38-55 parts by weight of calcic inorganic base, 6-16 parts by weight of algae and 3-6 parts by weight of modifier; and the compound solution is compounded from 100 parts by weight of clear water, 1.5-2.0 parts by weight of crystal modifier, 0.4-0.5 part by weight of waterproofing agent and 0.4-0.5 part by weight of defoaming agent. The formaldehyde adsorption rate of the composite material is 95%, the formaldehyde purifying effect durability is up to 90%, the methylbenzene adsorption rate is 68.5%, and the methylbenzene purifying effect durability is up to 50.4%. Compared with the chemical process, biosorption process and adsorption process adopted by the traditional formaldehyde purification material, the invention has the advantages of natural and environment-friendly raw materials, obvious purifying effect, wide product derivation performance and low cost.

The invention discloses a waste gas purification and treatment device which comprises a purifying box, a water supply box and a control box, and is characterized in that a spraying purification chamber, a photolysis purification chamber and an activated carbon purification chamber communicating with one another are sequentially formed from bottom to top in the purifying box; a waste gas absorptiontank is arranged at the bottom end of the spraying purification chamber; a waste gas inlet pipe is introduced into the bottom of the absorption tank; a first centrifugal fan is connected onto the waste gas inlet pipe; the bottom of the waste gas absorption tank communicates with a filter and the water supply box sequentially; a guide plate, a packing layer, a water spray pipe and a demister are sequentially arranged in the spraying purification chamber and positioned above the waste gas absorption tank; a photolysis purification device is arranged in the photolysis purification chamber; a multi-layer activated carbon filtering net is arranged in the activated carbon purification chamber. The waste gas purification and treatment device disclosed by the invention has the beneficial effectsof simple structure and high practicality.

The invention discloses an air purifier. The air purifier comprises a shell, a liquid storage device and a liquid throwing-off device, wherein a liquid throwing-off space is formed inside the shell, an air inlet communicated with the liquid throwing-off space is formed on the shell, the liquid storage device is arranged in the shell, the liquid throwing-off device is arranged in the liquid throwing-off space and comprises a liquid throwing-off assembly, the liquid throwing-off assembly is constructed to convert liquid supplying to the liquid throwing-off assembly into a three-dimensional liquid field formed in a three-dimensional space where the liquid throwing-off assembly is arranged, the three-dimensional liquid field comprises at least one of a three-dimensional liquid drop field and a three-dimensional liquid membrane field, the three-dimensional liquid drop field is composed of liquid drops with one or more particle sizes in a preset distributing mode, the three-dimensional liquid membrane field is composed of a liquid membrane formed on the liquid throwing-off assembly, and the liquid throwing-off device is used for converting liquid supplying to the liquid throwing-off device from the liquid storage device into the three-dimensional liquid membrane field and/or the three-dimensional liquid drop field to adsorb impurity pollutants in the air and deliver the impurity pollutants out from an air outlet, wherein the impurity pollutants in the air enter the liquid throwing-off space through the air inlet. According to the air purifier, the purifying effect is remarkable.

The invention discloses a preparation method for a high-purity melted quartz powder material. The method comprises the following steps of comprehensively removing impurities from crude vein quartz mine, namely performing rough crushing, manual selection, electrostatic impurity removal, fine crushing and screening, high-gradient magnetic separation, acid washing impurity removal, washing and air-drying to obtain clean quartz sand; placing the clean quartz sand in an active gas melting furnace for purification, namely introducing active gas in the high-temperature melting furnace to obtain a high-purity melted quartz block; crushing the melted quartz block into powder by using a centrifugal crusher, and performing high-gradient magnetic separation on the powder to obtain high-purity melted quartz powder. According to the method, quartz powder with purity of 99.99 percent can be obtained.

The invention relates to the field of medical wastewater treatment, particularly a medical wastewater three-stage treatment technique which comprises the following steps: a primary macroscopic impurity removal technique is performed, wherein the primary macroscopic impurity removal technique comprises sedimentation tank treatment, precipitation tank treatment and regulating tank treatment, and is used for macroscopic impurity removal; medical wastewater after the primary macroscopic impurity removal technique enters a secondary microscopic impurity removal technique, wherein the secondary microscopic impurity removal technique comprises water softener tank treatment, hydrolysis-acidification tank treatment, aeration biological tank treatment, electrolysis cell treatment and MBR (membrane bioreactor) tank treatment, and is used for microscopic impurity removal; and medical wastewater after the secondary microscopic impurity removal technique enters a tertiary disinfection discharge technique, wherein the tertiary disinfection discharge technique comprises secondary sedimentation tank treatment, disinfection tank treatment and discharge, and is mainly used for sterilizing and disinfecting the wastewater. The technique can remove different pollutants in the medical wastewater by using different treatment processes, and can implement efficient purification on the medical wastewater.

The invention relates to a filter element of a water purifier. The filter element is characterized by being prepared from the following raw materials by weight percent: 72-80% of red stoneware mineral, 7-15% of kaolin, 4-12% of shell powder and 5-13% of rice hull. The invention further relates to a manufacturing method of the filter element. The manufacturing method comprises the following steps: (1) preparing materials; (2) carrying out ball milling; (3) grouting; (4) repairing a blank; (5) sintering; (6) testing and (7) finishing. The filter element of the water purifier has a relatively good purification effect and is multifunctional; the manufacturing method is simple to operate, the quality of the filter element can be well controlled and a relatively large amount of defective products is avoided during manufacturing.

The invention discloses a process method/device adopting RO (Reverse Osmosis) membrane to perform water treatment. The method comprises working processes such as preprocessing, advanced purification and sterilization, wherein the preprocessing comprises ultrafiltration and/or filtration and microfiltration to source water; the advanced purification adopts RO treatment; and the sterilization adopts UV (Ultra Violet) sterilization and disinfection. In the invention, various purification treatment processes of the drinking water source are optimized, and the device/equipment which can ensure the favorable process implement effect is correspondingly selected. Compared with the prior art, the processes such as active carbon filtration, dual-media filtration, biofiltration, ultrafiltration and microfiltration are combined with the RO process; the reasonable preprocessing process is selected according to the specific circumstances through experiments, so that the processing pressure of the RO process is reduced, the favorable purification effect is obtained, the product water after preprocessing, RO and UV disinfection reaches the high quality or direct drinking water standard, and the problems existing on the current drinking water in countryside are effectively solved.

The invention relates to a preparation technology of efficient polymeric aluminum chloride for wastewater treatment. The preparation technology is mainly technologically characterized by comprising the following steps: with hydrochloric acid, aluminum hydroxide and a polymerization regulator as main raw materials, producing a liquid solution by a high-temperature, low-pressure and alkaline adjustment two step method; and producing powdery solid by a centrifuging or pressure spray drying and curing environment-friendly technology. The preparation technology disclosed by the invention is advanced in process, high in production efficiency, fast in purification speed, good in treatment effect, wide in application field, low in treatment cost, energy-saving and environment-friendly, and has important application and popularization values by adjusting the raw material ratio in production.

The invention provides a twin tower tandem exhaust gas purifying processing combination device which adopts a biomembrane packing tower system utilizing catalytic oxidant cyclically spraying liquid in the front and a biomembrane packing tower system utilizing pH buffering agent cyclically spraying liquid in the rear, which can carry out purifying processing to simultaneously remove the SQ2 and the NOx in the exhaust gas and to obtain by-products, namely, the utilizable sulphuric acid and nitrating acid products. The invention is characterized in that desulphuricants and denitrifier complex bacteria with the performance of simultaneously removing SQ2 and NOx in the exhaust gas under the conditions of liquid-phase catalyzed oxidation and pH acid environment can be obtained by screening and culturing and domesticating, and the composite bacteria biofilm to manufacture the biomembrane packing tower which is arranged in the tandem front end and is mainly used for removing SQ2; and the biomembrane packing tower which is mainly used for removing NOx in the rear is manufactured by adopting the denitrifier complex bacteria biofilm with the performance of removing NOx in the exhaust gas under the condition of pH neutral environment through screening and culturing and domesticating.

The invention discloses a composite material for rehabilitating river channel sludge as well as a preparation method and application of the composite material. The composite material comprises the following components by weight percent: 50%-70% of calcium peroxide, 20%-40% of iron-modified diatomite and 10%-20% of copper oxide. The preparation method comprises the steps of mixing the three components, carrying out ball milling for 20-40 minutes, and sieving by virtue of a 20-30-mesh sieve. The composite material is scattered to the surface of the river channel sludge according to a standard that 150g-250g of the composite material is scattered to 1m<2> of the river channel sludge, the components in the composite material react in water and can be mutually promoted, and heavy metal ions and phosphate in the river channel sludge can be effectively fixed by virtue of a synergistic effect of physical absorption and chemical reaction, and microorganisms and organic pollutants in the river channel sludge can be rapidly degraded, so that the effects of rehabilitating the river channel sludge and purifying a water body are obvious. Furthermore, the composite material is environmentally friendly and low in cost, and the secondary pollution is avoided.

The invention discloses an air purification device and method capable of continuously degrading indoor VOCs. The air purification device comprises a dehumidification unit, an inlet air inducing unit, a first purification and degradation chamber, a second purification and degradation chamber, an outlet VOCs monitor and control unit and an exhaust unit. According to the air purification device capable of continuously degrading the indoor VOCs, VOCs gas adsorption degradation and activated carbon desorption regeneration are integrated, and integrated shell mounting is easy; the air purification device has the beneficial effect of being convenient to move, an adsorbing material does not need to be replaced frequently, the consumption cost of an activated carbon adsorbing material is greatly reduced, and the service life of the activated carbon adsorbing material is prolonged; and a dehumidification pretreatment method is adopted, the efficiency that activated carbon purifies and adsorbs the VOCs later is greatly improved, the air purification effect is greatly improved, and the good market potential is achieved.

The present invention is sugar refining process with boiler fume as the clarifier, and the sugar refining process includes the steps of extracting crude sugar liquid, purifying crude sugar liquid and producing high quality sugar. During purifying crude sugar liquid, calcium oxide or regenerated filtering mud are added, and boiler fume with CO2 content of 6-17 is introduced for reaction with calcium oxide or regenerated calcium oxide to produce calcium carbonate adsorbing non-sugar impurity in the sugar liquid, with the volume ratio between boiler fume and crude sugar liquid being 100-300, and the mass ratio between boiler fume and calcium oxide or regenerated filtering mud being 5-30. The present invention has high sugar liquid purifying effect, sugar liquid purity raised by 2-13 %, reduced lime consumption, reduced CO2 exhaust of boiler, and raised economic utility and environment utility.

The invention relates to the technical field of microbial applications, and in particular relates to a repair method of heavy metal polluted soil. According to the method provided by the invention, a soil environment is balanced by hydroxyapatite first, so that the removal effect of follow-up hydroxyapatite and bacillus megaterium powder on free state heavy metals can be effectively accelerated. One month later after on-site repair of the heavy metal polluted soil 1km near a chemical plant by adopting the method, the removal rates of free state lead, chromium, copper, mercury, zinc and cadmium in the polluted soil can separately reach 64.6%, 54.1%, 51.5%, 35.3%, 27.5% and 24.7%; two months later, the removal rates of free state lead, chromium, copper, mercury, zinc and cadmium in the polluted soil can separately reach 81.6%, 73.6%, 73.1%, 56.8%, 49.8% and 61.3%; second stage soil condition (GB15618-1995) formulated by the state is substantially met, that is, soil limit value on agricultural production and human health maintaining can be met. The repair method is obvious in purifying effect on the polluted soil and wide in application prospect.

The invention discloses a novel three-dimensional electrode water treatment system and graphene conductive particle preparation method. The novel three-dimensional electrode water treatment system comprises a pretreatment system, an electrolytic treatment system and an organic contamination treatment system which are sequentially communicated, the pretreatment system performs sand filtering treatment on sewage through a sand filter, the water inlet turbidity is lowered, the electrolytic treatment system electrolyzes organic contaminations and adsorbs sediment heavy metal through the three-dimensional electrode reactor, the organic contamination treatment system further degrades organic contaminations through ultraviolet catalysis, the sewage treatment system is perfect, and the purifying effect is remarkable. The cylindrical three-dimensional electrode reactor is adopted, a coating titanium electrode is selected as an anode, the treatment efficiency and the current utilization efficiency can be improved, and electric energy consumption is low, insulation particles and conductive particles filled proportionally are selected as particle electrodes, the insulation particles can solvethe problem of short-circuit current of the three-dimensional electrode reactor, and the metal-loaded graphene conductive particles can remarkably improve the wastewater degrading effect.

The invention discloses an ecologically harmless treatment system of excrement and domestic sewage. The treatment system mainly comprises a septic tank, wherein, the septic tank is connected with a silting acidification tank, an anaerobic fermentation tank and an ecological treatment tank in sequence through a connecting pipe of a box body; the septic tank, the silting acidification tank and the anaerobic fermentation tank are provided with respective upper covers; and an elastic filler is arranged in the anaerobic fermentation tank. Based on the design of the tanks, the tanks can effectively treat the excrement, and the discharged sewage after the treatment can meet the second-class standard of the state. The first two tanks of the treatment system perform the fermenting and sterilizing functions and the septic function; the last four tanks are the silting acidification tank, the anaerobic fermentation tank, a filtering wetland tank and a water outlet tank. The treatment system utilizes anaerobe to ferment and decompose organic matters, and promotes the decomposition of facultative microorganism through the filtration, root interception, sorption, absorption, and photosynthesis and oxygen transportation of plants, so as to efficiently purify the sewage.