117results about How to "Good flocculation effect" patented technology

The invention discloses a multi-stage purification industrial sewage treatment system which comprises a flocculation basin, a flocculation mechanism and an ozone purification mechanism, a sedimentation tank is arranged on the right side of the flocculation tank, the sedimentation tank is communicated with the upper end of the flocculation tank, a rapid sedimentation block is fixedly connected to the upper end of the right side of the sedimentation tank, and inclined through holes which are uniformly distributed are formed in the rapid sedimentation block; the flocculation mechanism comprises a supporting plate, throwing assemblies, second motors and stirring shafts, the rotatable supporting plate is arranged at the upper end of the flocculation basin, the second motors which are evenly distributed are fixedly connected to the upper surface of the supporting plate, the stirring shafts are fixedly connected to the lower ends of output shafts of the second motors, and the throwing assemblies are arranged at the left end and the right end of the supporting plate. According to the multi-stage purification industrial sewage treatment system, a flocculating agent and sewage are mixed more sufficiently through rotation of the stirring shaft and the flocculating agent throwing mechanism, the ozone treatment stage is more efficient and sufficient, and meanwhile waste of ozone is reduced.

The invention discloses an advanced treatment agent for textile printing and dyeing wastewater and a treatment method. The advanced treatment agent comprises a component A and a component B, the component A comprises modified graphene oxide and an enzyme treatment agent; the component B comprises magnesium aluminum silicate, hydroxyapatite, hydroxypropyl methyl cellulose and chitosan, and the hydroxyapatite is coated with the magnesium aluminum silicate to form a core-shell structure. By adopting a modified graphene oxide immobilized enzyme structure, harmful components in water can be effectively adsorbed, so that the effect of greatly improving sewage purification is achieved, and meanwhile, the adsorption effect of the harmful components can be further improved by matching with aluminum-magnesium silicate coated hydroxyapatite, hydroxypropyl methyl cellulose and chitosan; meanwhile, bonding with the modified graphene oxide is beneficial to agglomeration and flocculation of substances, so that the flocculation capacity is improved, and floc separation is facilitated.

The invention belongs to the technical field of underwater construction materials, and particularly relates to a self-leveling anti-dispersion underwater bottom sealing material and a preparation method thereof. The self-leveling anti-dispersion underwater bottom sealing material disclosed by the invention is prepared from the following components in parts by weight: 530 to 730 parts of sulphoaluminate cement, 77 to 277 parts of ordinary Portland cement, 84 to 126 parts of fly ash, 870 to 950 parts of fine aggregate, 250 to 278 parts of water, 18 to 23 parts of a water reducing agent, 6 to 10 parts of a flocculating agent, 8 to 12 parts of a retarder, 0.9 to 1.4 parts of a de-foaming agent and 0.1 to 0.4 part of an early strength agent. The self-leveling dispersion-resistant underwater bottom sealing material disclosed by the invention has good fluidity and dispersion resistance.

The invention relates to the technical field of flocculating agents, and discloses a flocculating agent for high-concentration azo printing and dyeing wastewater, which is prepared from the following components in parts by weight: 4 to 5 parts of hydroxypropyl chitosan derivative, 2 to 3 parts of sodium silicate solution, 0.5 to 1 part of sulfuric acid, 2 to 3 parts of ferric sulfate solution, 1 to 3 parts of zinc sulfate solution, and 4 to 5 parts of polyaluminum chloride solution and composite antibacterial agent. The preparation method comprises the following steps: preparing a sodium silicate solution, slowly dropwise adding the sodium silicate solution into sulfuric acid, and activating to obtain a polysilicic acid solution; sequentially adding a ferric sulfate solution, a zinc sulfate solution and a 50-500mg / L polyaluminum chloride solution, and standing and curing to obtain the polysilicate ferric zinc aluminum flocculant. The preparation method comprises the following steps: firstly, preparing a polysilicate ferric zinc aluminum flocculant, then slowly adding a melamine solution, carrying out ultrasonic action to obtain a carbonitrided polysilicate ferric zinc aluminum flocculant, and carrying out carbonitriding treatment on the polysilicate ferric zinc aluminum flocculant combined with metal ions to delay gelation of the polysilicate flocculant, so that the polysilicate flocculant can be stored for a longer time.

The invention discloses a modified bentonite in-situ polymerization type mineral flocculant and a preparation method thereof, and relates to the technical field of flocculants for mineral slurry concentration. Comprising the following steps: S1, dispersing: adding acid and water into bentonite, adjusting the pH value to 3.5-4.5, and dispersing; s2, interlayer modification: adding an intercalator to obtain flocculent precipitate; s3, pretreatment: carrying out four steps of water washing, suction filtration, drying and grinding to obtain an organic precursor with the particle size of 300 meshes; s4, intercalation: adding a polymer monomer to obtain an intercalation monomer; s5, polymerization: adding an initiator, and carrying out polymerization reaction to obtain an intercalation polymer; s6, drying and grinding: sequentially carrying out two steps of drying and grinding to obtain the mineral flocculant. The bentonite is subjected to intercalation modification in an in-situ polymerization manner, and the raw material formula ratio and related processes of each step are controlled, so that the obtained mineral flocculant has better flocculation effect and dehydration effect on small-particle minerals.

The invention relates to a sludge conditioning and dewatering composite agent and a preparation method thereof. The sludge conditioning and dewatering composite agent comprises a high-molecular polymer, wherein the high-molecular polymer comprises a 1-vinyl-2-pyrrolidone copolymerization unit and a copolymerization unit comprising an alkenyl group and an amino group or an acylamino group; and a tannic acid-inorganic salt complex. The sludge conditioning and dewatering composite agent can efficiently flocculate fine particles, increase the particle size of sludge, improve the sludge-water separation speed and promote deep dewatering of sludge.

The invention discloses a modified flocculant and equipment for rapidly removing microplastics in drinking water, and the modified flocculant is a polyaluminum sulfate-titanium tetrachloride-poly dimethyl diallyl ammonium chloride ternary composite flocculant. The pH application range value is increased by compounding with the poly dimethyl diallyl ammonium chloride, the charge neutralization bridging and netting capabilities are enhanced, and the adsorption bridging through a polymer chain is enhanced, so that the flocculant has the advantages of strong flocculation capability, quick demulsification, high settling velocity and small flocculant volume; and the water purifier has very strong purification capacity on fine suspended matters such as micro-plastics in water. Through the special flocculant adding, stirring and precipitation structure design, the removal rate of the micro-plastics is remarkably improved.

The invention discloses a magnetic flocculant and application thereof in a cutting fluid wastewater treatment process, and relates to the technical field of sewage treatment. The preparation method of the magnetic flocculant comprises the following steps: impregnating modified magnetic nanoparticles in chitosan-poly-silicon ferrotitanium sulfate, carrying out ultrasonic treatment for 30-40 minutes, sucking out by using a high-strength magnet, drying at 50-60 DEG C, and repeating the steps of impregnating, sucking out and drying for 3-5 times to obtain the magnetic flocculant. The prepared flocculant is combined with an existing magnetic separation device, suspended particles and colloidal substances in the waste liquid are gathered to form flocs, meanwhile, organic matter in the waste liquid is adsorbed, and the purpose of efficiently and rapidly treating the grinding waste liquid is achieved through the magnetic attraction effect.

The invention relates to the technical field of soil improvement, and discloses an expansive soil improvement material and a preparation method thereof.The expansive soil improvement material is prepared from, by mass, 1-5% of sodium carboxymethyl cellulose, 1-5% of anionic polyacrylamide, 5-25% of alkali-activated rice hull ash and 65-93% of in-situ soil. The soil bearing capacity is improved, water and soil loss is prevented, surface runoff is reduced, the water retention capacity of soil is improved, harmful substances cannot be generated in use, the method is harmless to the environment and human health, the method is simple, a complex treatment process is not needed, the construction difficulty and cost are reduced, and energy loss in the whole production process is reduced. The energy consumption in the whole production process is reduced, meanwhile, the overall production efficiency is improved, the energy loss is reduced, the pollution emission in the production process is reduced, and green and environment-friendly production is achieved.

The invention discloses a method for reinforcing denitrification of a sulfur circulation microbial system by using an iron carrier, and belongs to the technical field of nitrogen-containing wastewater treatment. The method comprises the following steps: inoculating sulfate reducing bacteria and thiobacillus denitrificans into a culture medium containing iron ions or ferrous ions for domestication; and applying the domesticated complex microbial inoculant to wastewater denitrification. In a sulfur circulating microorganism system, Fe < 2 + > can promote the activity of a biological denitrification key enzyme in a biological system by forming an iron carrier in a form of FeS, S < 2-> is fixed in the system and prevented from escaping, and when electron donors in the system are insufficient, the Fe < 2 + > can be used as a substitute electron donor for biological denitrification, so that the requirement on an external carbon source is reduced, and the energy consumption is reduced. And meanwhile, the impact load resistance of the system can be enhanced. Through sulfate reduction and sulfur autotrophic denitrification and iron coupling, sulfate in wastewater is converted into electron donors, a carbon-nitrogen-sulfur-iron biological co-reaction system is formed, the defects of a single-strain denitrification system are overcome, the denitrification effect is enhanced, and energy consumption and cost are reduced.

The invention discloses waste water recycling equipment for corrugated board production, and relates to the technical field of waste water treatment.The waste water recycling equipment comprises a settling box, a water outlet pipe is fixedly connected to one side of the settling box, a water inlet pipe is fixedly connected to the side, away from the water outlet pipe, of the settling box, and sliding grooves are symmetrically formed in the upper end face of the settling box; the liquid collecting box can be driven to move intermittently and equidistantly on the upper end face of the settling box, a flocculating agent in the liquid collecting box is uniformly sprayed on wastewater in the settling box, the flocculating agent can be uniformly sprayed to all corners of the settling box, and the problem that the local concentration is too high or too low due to direct feeding through a traditional single inlet is solved; the uniform distribution enables the flocculation reaction in the wastewater to be more consistent, and the obvious difference of flocculation effects among different areas is reduced, so that floating matters and suspended matters in the wastewater are more effectively removed, the overall efficiency of wastewater treatment is improved, the quality of the treated wastewater is improved, and the wastewater is more in line with environmental protection standards and subsequent treatment requirements.

The invention relates to the technical field of agricultural cultivation, in particular to a fine grain tailing-based rice seedling substrate and a preparation method thereof. The fine grain tailing-based rice seedling raising substrate comprises the following components: fine grain tailings, fresh animal waste powder, a modifier A and diatomite. The fine grain tailing rice seedling raising substrate has excellent water and fertilizer retention performance, can effectively improve the soil structure and physicochemical properties, improves the air permeability and water retention of the substrate, promotes plant growth, and reduces dependence on soil resources and influences on the environment. The fine grain tailing-based rice seedling substrate prepared by the invention is wide in material source and simple in preparation process, has the advantages of promoting healthy and strong growth of seedlings, enabling seedlings to emerge neatly, being developed in root system, multiple and long in root system, strong in root system coiling force, high in seedling rate, high in comprehensive quality of the seedlings and the like, and has a relatively wide application prospect.

The invention relates to the technical field of sewage treatment, and discloses a cationic etherifying agent composition for sewage treatment and a preparation method thereof. The cationic etherifying agent composition for sewage treatment is obtained by mixing gemini imidazoline quaternary ammonium salt etherified starch, a chitosan-based graft modified copolymer and poly-aluminum silicate. Nitrogen atoms on an imidazoline ring and a pyrrole ring, hydroxyl and amino can form hydrogen bonds in the flocculation process, so that the interaction between the composition and colloidal particles is enhanced, and the flocculation effect is improved; positive charges in quaternary ammonium salt can react with negative charges carried by suspended particles in sewage, so that the particles are more easily gathered, and the flocculation performance is improved; chitosan and starch molecular chains are relatively long, so that a plurality of pollutant molecules can be adsorbed at the same time, and a bridging effect is achieved; a gemini imidazoline quaternary ammonium salt structure and a cation modified pyrrolidone structure are introduced into starch and chitosan molecules, so that active sites of the starch and chitosan molecules are increased, and the flocculation effect is further enhanced.

The present invention discloses an algae in-situ treatment device, including a cyanobacteria collection barrel, an inner shell, an electrode module, and an aeration module. The inner shell is arranged in the cyanobacteria collection barrel, and the inner shell includes an inner shell shell and a water outlet channel. The inner shell shell is fixedly connected to the inner wall of the cyanobacteria collection barrel through a connecting rod, and the water outlet channel is arranged at the top of the inner shell shell. The electrode module is arranged on the inner shell, and the electrode module includes an electrode plate and a gasket. A gasket is arranged between each electrode plate and the inner shell. The aeration module includes an air inlet pipe and an aeration pipe. The air inlet pipe runs through the cyanobacteria collection barrel, and the aeration pipe is arranged on the air inlet pipe in the cyanobacteria collection barrel. The device of the present invention can generate ions through electrolysis of the electrode module to form a flocculent gel, sweep and capture the algae in the water to form flocculation precipitation, and form bubbles in the water body through the airflow of the aeration pipe to disperse and escape, thereby improving the flocculation effect, and the device structure is relatively simple, easy to operate, and does not consume a lot of manpower and material resources.

The utility model relates to the field of blue-green algae treatment equipment, in particular to a blue-green algae collecting and flocculating device which comprises a barrel body, a flocculating agent leading-in assembly, a water pump assembly, an electric box, a first guide pipe, a second guide pipe, a blue-green algae collector, an insertion column, a ladder, a waste algae discharge pipe and a purified water discharge pipe, the flocculating agent collecting assembly with the flowmeter and the pressure controller is arranged, the dosage of a flocculating agent can be accurately controlled according to different flocculation requirements, and the flocculating agent can be uniformly guided into the barrel, so that the flocculation effect is better, and the flocculating agent is not easily wasted; according to the blue-green algae absorption device, blue-green algae can be intensively collected together through pressure in the blue-green algae absorption process and then guided into the flocculation device, absorption can be more thorough, part of blue-green algae is prevented from being precipitated or dispersed in the absorption process, and the treatment effect is better.

The present invention provides a device for treating sewage using dry strength agent production wastewater, comprising a sewage regulating tank, a sewage coagulation tank, a coagulation sedimentation tank and a biochemical treatment tank connected in sequence through pipelines, a sewage pump is arranged between the sewage regulating tank and the sewage coagulation tank, the sewage coagulation tank comprises a first coagulation tank, a second coagulation tank and a third coagulation tank connected in sequence, the first coagulation tank is connected to an acid-base tank, the second coagulation tank is connected to a polyaluminium chloride tank, and the third coagulation tank is connected to a dry strength agent production wastewater tank. The present invention also provides a method for treating sewage, through the device and method of the present invention, the dry strength agent production wastewater can be effectively used to flocculate and purify sewage, which has high commercial value and promotion value.

The utility model discloses a sewage treatment device with protection structure relates to sewage treatment device structure technical field, aims at solving the sewage treatment device of current not having good protection effect, like this makes sewage treatment device in use or mobile process easy to cause damage because of collision, its technical scheme main points include support base, the top of support base is installed with sewage treatment device, the periphery of support base upper end is provided with vertical protection frame, one end of vertical protection frame is installed with horizontal protection frame, the inside of sewage treatment device is provided with processing room, the inside of processing room is provided with baffle no.

The utility model discloses an integrated high-efficiency sedimentation tank which comprises a coagulation tank, a flocculation tank, a plug flow area and a sedimentation tank which are communicated in sequence, a first stirrer is arranged in the coagulating basin, and is provided with a first dosing assembly; a second stirrer and a guide cylinder are arranged in the flocculation tank, the guide cylinder is vertically arranged, the second stirrer is arranged in the guide cylinder, and the second stirrer is provided with a second dosing assembly; a communicating pipe is arranged in the flocculation basin; one end of the communicating pipe is connected with the lower part of the side wall of the coagulating basin, and the other end of the communicating pipe extends into the guide cylinder and is arranged below the second stirrer; and the coagulating basin is communicated with the flocculating basin through a communicating pipe. According to the technical scheme, a medicament and sewage are fully mixed, the flocculation effect is good, the sludge concentration is high, the precipitation effect is improved, the precipitation time is shortened, and the effluent quality is improved.

The present invention provides an evaluation device and method for the flocculation effect of a flocculant, the evaluation device comprising: a supply component for a liquid to be flocculated, a flocculant supply component, a flocculation reaction component and a filtering component; the supply component for the liquid to be flocculated and the flocculant supply component are connected to the feed port of the flocculation reaction component through a multi-way valve, so that the liquid to be flocculated and the flocculant undergo a flocculation reaction in the flocculation reaction component and generate flocculated precipitates; the discharge port of the flocculation reaction component is connected to the feed port of the filtering component, and the filtering component comprises a plurality of filter elements connected end to end; each filter element is provided with filter elements with different pore sizes, and the pore size of the filter elements in the filter element gradually decreases from the side close to the feed port of the filtering component to the side close to the discharge port of the filtering component, so that the flocculated precipitates complete multi-stage filtration in the filtering component. The present invention can comprehensively evaluate the flocculation effect of the flocculant in different filter media.

The invention discloses a method for producing polyacrylamide by a kneading machine. The method comprises the following steps: (1) forming a mixed solution A from acrylamide, 2-acrylamido-2-methyl propane sodium sulfonate, polyethylene glycol diacrylamide, a chain transfer auxiliary agent and water; (2) forming a cationic monomer solution from a cationic monomer, a cosolvent and water; (3) forming a mixed solution B from a part of the mixed solution A and a part of the cation mixed solution; (4) forming a mixed solution C from a redox initiator, an azo initiator and water; (5) putting the residual mixed solution A into a polymerization reaction kettle, introducing nitrogen to remove oxygen, regulating the temperature, adding the mixed solution C, stirring to react, cooling, adding the cationic monomer solution and the mixed solution C, stirring to react, cooling, adding the mixed solution B and the mixed solution C, stirring to react, heating, preserving heat and standing to obtain colloid; and (6) transferring the colloid into a kneading machine, vacuumizing and kneading. The produced polyacrylamide is high in molecular weight and concentrated in distribution, and has good dissolution and flocculation performance.

The utility model discloses an accelerated flocculation device for sewage treatment, which comprises a flocculation barrel and a barrel cover arranged at the top end of the flocculation barrel, a water inlet pipe and a water outlet pipe are fixedly connected to the tops and the bottoms of the left side and the right side of the flocculation barrel respectively, and a stirring mechanism is arranged in the flocculation barrel and comprises a sleeve. The left side and the right side of the top of the sleeve are fixedly connected with obliquely-arranged powder outlet pipes, the top of the sleeve extends to the position above the barrel cover and is rotationally connected with the barrel cover, the top of the sleeve is fixedly connected with a first gear, and the top of the sleeve is fixedly connected with a powder adding pipe. The equipment has the advantage of automatically adding the magnetic powder, and solves the problems that an operator needs to manually add the magnetic powder when part of devices are used for sewage treatment, the labor intensity of the operator is increased due to manual addition of the magnetic powder, and the working efficiency is low due to frequent manual addition in the sewage treatment process of continuous operation; the continuity and the stability of the treatment process cannot be ensured.

The invention discloses a sewage treatment agent as well as a preparation method and application thereof. The sewage treatment agent comprises a microbial agent, modified diatomite, silicic acid, sodium alginate and modified soluble starch. The preparation process of the sewage treatment agent comprises the following steps: adding a microbial agent into a modified diatomite aqueous solution, uniformly stirring to uniformly load the microbial agent inside and on the surface of the modified diatomite, and drying until the moisture content is less than or equal to 4% to obtain a material I; and adding the first material, silicic acid and modified soluble starch into a reactor with stirring magneton and a sodium alginate aqueous solution for reaction to obtain the sewage treatment agent. According to the invention, microorganisms are adopted to degrade ammonia nitrogen compounds in sewage, meanwhile, suspended substances in water can be subjected to flocculating settling, the microorganisms are reasonably proportioned to realize maximum flocculating settling and degradation of the ammonia nitrogen compounds, and the microorganisms are mutually matched and coordinated and symbiotic, so that dominant bacterial communities can be formed when the microorganisms are put into the sewage; the ammonia nitrogen index in the sewage is rapidly reduced, and the effect is rapid and remarkable.

The utility model discloses a sewage pool flocculant throwing device, and belongs to the technical field of throwing devices. The sewage pool flocculant throwing device comprises a fixed barrel body, an annular adjusting seat is arranged at the bottom of the fixed barrel body, and the inner wall of the annular adjusting seat is in threaded connection with an annular adjusting frame; through unique structural design, flexible and accurate adjustment of the position of the nozzle group is achieved, the position of the nozzle group can be adjusted in the horizontal direction and the vertical direction by means of threaded connection of the annular adjusting frame and the annular adjusting seat and matching of the first adjusting rod, the second adjusting rod, the corresponding sliding seat and the corresponding limiting piece, and the nozzle group can be adjusted in the vertical direction. The height of the first sliding seat and the height of the second sliding seat can be accurately controlled and the throwing height can be changed by rotating the first limiting part and the second limiting part, so that the device can adjust the throwing position of the flocculating agent according to the actual conditions such as sizes of pool bodies of different sewage pools, sewage distribution and the like, the flocculating agent is promoted to be more uniformly distributed in sewage, the flocculation effect and the sewage treatment capacity are improved, and the device adapts to various complex working conditions.

The present invention relates to the technical field of sewage treatment, and discloses a sewage treatment device and its application in the production of pretilachlor pesticide, comprising a stirring box and a sedimentation tank, wherein the stirring box is internally divided into a first chamber and a second chamber, and further comprising an agitator, an observation tube, a transfer assembly, a heat pipe and a drive assembly. The present invention is provided with an agitator, an observation tube, a transfer assembly, a heat pipe and a drive assembly, and uses the transfer assembly and the observation tube to transport sewage into the observation tube, which is conducive to real-time monitoring of the sewage state during the sewage flocculation process. When the flocculation effect is poor, the heat pipe can be heated by the drive assembly, and the reciprocating floating of the heat pipe can be controlled at the same time, so that the sewage temperature and the diffusion effect of the flocculant in the sewage can be increased, and the flocculation effect can be improved while the cause is preliminarily investigated, so that the operator can more accurately judge the cause and take corresponding measures, and avoid the effect or efficiency of sewage treatment affected by misoperation.

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

The application provides a copper selection process of iron-containing waste residue, and comprises the following steps: adding iron powder and ammonium fluoride into titanium dioxide waste acid to obtain a titanium dioxide waste acid pre-solution after a period of reaction; S2, adding the iron-containing waste residue into the titanium dioxide waste acid pre-solution, and controlling the reaction temperature to be 20-50 DEG C; S3, after the reaction is completed, adding a nano precipitant when the pH of the solution is adjusted to 3-4.5, and adding a modified flocculating agent after a period of reaction, so that the precipitated copper is obtained after filtration and washing.

The invention relates to a water treatment agent and a preparation method and application thereof, and the preparation method comprises the following steps: (1) adding an organic additive and hydrogen peroxide into an ammonia water solution to prepare a mixed solution I, carrying out electrolytic reaction, and aging to obtain sol; (2) dissolving acrylamide and a cationic monomer in water to obtain a mixed solution II; (3) adding the mixed solution II into the sol in the step (1) to obtain a mixed solution III; and (4) adding an initiator into the mixed solution III, and carrying out polymerization reaction to prepare the water treatment agent. According to the method disclosed by the invention, introduction of heteroanions is avoided, efficient in-situ polymerization of organic components on inorganic components is improved, the problem of low molecular weight of the medicament caused by initiation of an anion inhibition chain is solved, and the prepared medicament has excellent defluorination and flocculation capabilities.

The utility model relates to the technical field of vegetable liquid flocculation stirring, in particular to a vegetable liquid flocculation stirring machine which comprises a stirring box, a stirring mechanism is arranged in the stirring box and comprises a motor, a first rotating shaft is arranged below the motor, the first rotating shaft is coaxially and fixedly connected with an output shaft of the motor, and a second rotating shaft is arranged below the first rotating shaft. A first rotating shaft is arranged in the stirring box, a motor is arranged in the stirring box, a second rotating shaft is arranged below the motor, the second rotating shaft is coaxially and fixedly connected with the first rotating shaft, and a plurality of mounting strips are arranged below the motor. A plurality of stirring blades which are linearly distributed at equal intervals are arranged on the surfaces of the mounting strips, a plurality of insertion blocks are arranged on the surfaces of the mounting strips, a threaded hole is formed in each insertion block, a plurality of screw rods are arranged below the motor, and each screw rod is in threaded connection with the insertion block on the mounting strip on the same side, so that the purpose of stirring is achieved; and the function of convenient disassembly and cleaning is also realized.

This utility model relates to a wastewater recycling and treatment device, including a support frame, a treatment tank, a tank cover, and an agitation structure. The collection structure encloses a conveying device extending from the treatment tank. A U-shaped connecting pipe is inserted into the treatment tank, extending towards the bottom of the tank and having a circular hole on its surface. A double-pass connecting pipe is connected to the end of the U-shaped connecting pipe, which is connected to a pump. The conveying frame is installed at an angle inside the treatment tank, with its outer end extending outward through the tank. A conveyor belt is movably mounted on the inner side of the conveying frame. A geared motor is mounted on the surface of an impurity collection box, with a shaft connected to its output end. The conveyor belt is mounted on the shaft surface, and has openings on its surface. An inclined scraper is also mounted on the inner side of the impurity collection box, with its upper end contacting the surface of the conveyor belt. This utility model solves the problem of existing wastewater recycling and treatment devices failing to provide continuous filtration.

The invention discloses a short-cut nitrification-iron coupling sulfur cycle biological denitrification method, and belongs to the technical field of nitrogen-containing wastewater treatment. According to the method, ammonia nitrogen in the wastewater is converted into nitrite by utilizing a domesticated nitrosobacteria agent; then, sulfate reducing bacteria and thiobacillus denitrificans are inoculated into a culture medium containing iron ions or ferrous ions together for domestication to obtain a complex microbial inoculant, and nitrite and nitrate in the wastewater are further removed through the complex microbial inoculant. In a sulfur circulating microorganism system, Fe < 2 + > can promote the activity of a biological denitrification key enzyme in a biological system by forming an iron carrier in the form of FeS, S < 2-> is fixed in the system and prevented from escaping, and when electron donors in the system are insufficient, the Fe < 2 + > can be used as a substitute electron donor for biological denitrification, so that the requirement on an external organic carbon source is reduced, and the energy consumption is reduced. And meanwhile, the impact load resistance of the system can be enhanced. Through sulfate reduction and sulfur autotrophic denitrification and iron coupling, sulfate in wastewater is converted into electron donors, a carbon-nitrogen-sulfur-iron biological co-reaction system is formed, the defects of a single-strain denitrification system are overcome, the denitrification effect is enhanced, and energy consumption and cost are reduced.