161results about How to "Efficient processing effect" patented technology

The invention discloses an in-situ injection-extraction-water replenishing circulatory disposal system for organic contaminated soil and groundwater and a combined remediation method. The system is consist of an injection well, an extraction well, a water replenishing well, a water treatment facility, a dispensing facility. The method comprises the following steps: extracting a pollution source or groundwater in a seriously polluted area to the ground for processing, then using the processed groundwater as a preparation drug or as replenished water to be directly injected to the underground, and injecting the drug into the underground pollution plume area through the injection well. The system and the method are used for processing the organic contaminated soil and groundwater in situ and have the advantages of being small in disturbance, environmental-friendly, short in remediation cycle and wide in range of application and has no secondary pollution.

The invention provides a system for repairing polycyclic aromatic hydrocarbon contaminated soil. The system is provided with soil pretreatment equipment, chemical oxidation equipment, thermal desorption equipment, soil accumulation equipment and flue gas dust removal equipment in sequence. Conveying belts are arranged between the soil pretreatment equipment, the chemical oxidation equipment, the thermal desorption equipment and the soil accumulation equipment. The thermal desorption equipment communicates with the flue gas dust removal equipment through a pipeline. The soil accumulation equipment communicates with the soil pretreatment equipment through a pipeline. The invention further provides a method for repairing the polycyclic aromatic hydrocarbon contaminated soil. According to the system and method for repairing the polycyclic aromatic hydrocarbon contaminated soil, chemical oxidation and low-temperature thermal desorption are combined, and therefore the removal rate of polycyclic aromatic hydrocarbon of the soil can reach 99%, the repairing effect of the contaminated soil can be effectively improved, and the repairing period can be effectively shortened.

The invention discloses a system of using iron-carbon-Fenton pretreatment-UBF-A / O for treating dye waste water and a method thereof, and belongs to the technical field of waste water treatment. The method includes the steps that the dye waste water enters a pH adjusting pond first, the pH value is adjusted to be stabilized at 2-3, the dye waste water enters an iron-carbon microelectrolysis pond and a Fenton oxidization pond, outlet water of the Fenton oxidization pond enters a neutralizing settling pond, the waste water is neutralized until the pH value is about 8, and then anionic PAM is added to complete sludge-water separation; outlet water of the neutralizing settling pond is pumped into a UBF treatment system, a biological film cultured by filler under the anaerobic environment can purify the upwelling waste water, and meanwhile a return-flow system can ensure stable ascending velocity of the waste water in a UBF and effectively buffer impact loads. After the outlet water of the UBF is treated through the A / O process, nitrifying liquid of an aerobiotic pond returns to an anaerobic pond to enhance the denitrification effect, outlet water of the aerobiotic pond enters a vertical settling pond, and outlet water of the settling pond meets the requirement for water quality of pipe network takeover in a chemical industrial park. The method has the advantages of being good in treatment effect and high in impact load resistance.

The invention discloses a method and device for processing digital predistortion. The method comprises the steps of: respectively filtering a radio-frequency signal of each frequency band; collecting the nonlinear intermodulation distortion of each frequency band; synchronizing the nonlinear intermodulation distortion of each frequency band with the input signal of the frequency band; and updating digital predistortion factors by utilizing the synchronized signals. In the invention, through respectively filtering the radio frequency of each frequency band and carrying out common digital predistortion processing on digits, a high efficient digital predistortion processing effect of the digital predistortion can be achieved under the condition of low-complicated hardware.

The invention discloses an immobilized microbial particle as well as a preparation method thereof and a method for efficiently treating a black and odorous water body therewith. The preparation methodcomprises the following steps: adding a pre-concentrated microorganism material into a dried calcium peroxide powder, adding a binding agent, uniformly mixing the mixture, making the mixture into circular, cylindrical or square particles with a direct powder compression method or a dry granulation compression method and natural drying, so as to obtain immobilized microbial particles. Degrading bacteria having efficient purification effect on the black and odorous water body are embedded into the immobilized microbial particles formed by mixing calcium peroxide, the binding agent and the microorganism material, and dissolved oxygen in black and odorous wastewater can be quickly improved while the higher bacteria concentration is maintained, so that the black and odorous water body is efficiently purified. The method for efficiently treating the black and odorous water body has the advantages of being stable in treatment effect, having no secondary pollution, facilitating transportationand solving the problems that the black and odorous water body is low in dissolved oxygen and low in inoculant treatment efficiency. The technology is efficient and practical and plays a significantrole in the environmental engineering governance aspect.

The invention discloses a vertical type single-rod squaring machine for monocrystalline silicon. The vertical type single-rod squaring machine for monocrystalline silicon comprises a cutting chamber, a wiring chamber, a feeding and discharging device and an electrical chamber. The cutting chamber comprises a cutting head for cutting a single silicon rod and further comprises a silicon rod supporting seat for supporting the lower end of the single silicon rod and a silicon rod compressing mechanism for compressing and fixing the upper end of the silicon rod. The silicon rod compressing mechanism comprises a compressing support, an extension rod fixed to the compressing support, and a compressing seat fixed to the extension rod and used for being connected with the silicon rod. The extension rod is provided with an open groove through which a wire mesh of the cutting head can penetrate. The vertical type single-rod squaring machine for monocrystalline silicon achieves the efficient machining effects of achieving vertical type cutting, avoiding gluing, not shearing the wire mesh, automatically aligning crystal lines, achieving automatic feeding and discharging and simultaneously cutting four sides, is simple in process, convenient to operate and low in machining cost, achieves automation easily and meets the requirement for equipment of users.

The invention relates to a method for remediating pollution of nitrate nitrogen in underground water, which mainly comprises the following steps: firstly, preparing Fe / Cu nanoparticles by liquid phase reduction step by step: under the protection of argon gas, reducing a FeSO4.7H2O solution with a KHB4 solution to prepare FeO nanoparticles, then introducing a CuSO4.5H2O solution into the FeO nanoparticles for continuously stirring for reacting, after reacting, washing the nano Fe / Cu solution with deoxidized and deionized water, and then, selecting the Fe / Cu nanoparticles by a magnetic method; secondly, introducing the deoxidized reaction solution into the prepared Fe / Cu nanoparticles for physically mixing simply; and finally, adding underground water containing nitrate nitrogen and sealing to carry out oscillating reaction. The method has high efficiency for remediating pollution of nitrate nitrogen in underground water, has simple required equipment and convenient operation, and provides a new way for remediating pollution of nitrate nitrogen in underground water with high efficiency and low cost.

The invention discloses a composite HBF (Honess Hybrid Biological&Fixed film Technology) module reactor which comprises an anaerobic pool, an anoxic pool, an aerobiotic pool and an SBR (Sequencing Batch Reactor) pool, wherein the SBR pool comprises a first SBR pool and a second SBR pool which are connected with the aerobiotic pool at the same time. The aerobiotic pool, the first SBR pool and the second SBR pool are internally provided with enzyme floating fillers, respectively. The anaerobic pool, the anoxic pool, the aerobiotic pool, the first SBR pool and the second SBR pool are module members. The invention further provides a sewage treatment process. Based on AAO-SBR (Anaerobic-Anoxic-Oxic-Sequencing Batch Reactor), the aerobiotic pool, the first SBR pool and the second SBR pool are internally provided with enzyme floating fillers respectively as biological attaching carriers, so that the biomass of the reactor is more than 2 times of that by an activated sludge process in volume, thereby greatly enhancing the processing capacity of the reactor and simplifying the structure of the reactor.

The invention discloses a repair agent for treating heavy metal contaminated soil and an application thereof. Proper wastes of straw crushed matters, turf, modified lignin and roots, stems, leaves and shells of leguminous plants are selected according to the characteristics of the heavy metal contaminated soil, and a chemical adsorbent and a microbial inoculant are optimized and combined. Firstly, the wastes of straw crushed matters, turf, modified lignin and roots, stems, leaves and shells of leguminous plants are separated under the action of other chemical agents; by combining the auxiliary coordinating action of the chemical adsorbent and assisting available matters and excretions thereof generated by microorganisms in the growing process, a matrix and a raw material growing each other are formed; and a microbial community which is complex in composition, stable in structure and wide in function and contains various bacteria is formed through symbiotic and proliferative relationship. The microorganisms in a purifying process of the soil containing heavy metals benefit each other to exert the maximum combined advantages, so that the repair agent has an efficient treatment effect and is low in cost and obvious in economical benefit.

The invention discloses a microbial sewage treating agent used for livestock and poultry breeding wastewater treatment. In the microbial sewage treating agent, proper bacterial strains are selected according to the characteristics of livestock and poultry breeding wastewater for being optimizingly combined, wherein effective substances and secretion substances, generated during growth processes, of the microorganisms are formed into substrates and raw materials which are mutually grown, and a microbial community, which is complex in composition, is stable in structure, is wide in functions, including various bacteria is formed through a mutual symbiotic and proliferative relationship. The microorganisms are beneficial to each other during a purification process of the livestock and poultry breeding wastewater and a best cooperative advantage of the microorganisms is achieved. The microbial sewage treating agent has a high-efficient treatment effect, achieves qualified discharge of the wastewater, is low in cost and is significant in economic benefit.

The invention discloses a dyeing wastewater purifying agent. Proper inorganic compound treating agents, organic compound treating agents and microbial inoculants are selected and subjected to optimal combination according to the characteristics of the industrial dyeing wastewater; the microbes generate useful materials and secretions thereof in the growth process to form the matrixes and raw materials for mutual growth; a complex-composition stable-structure wide-function microbial flora with various bacteria is formed through the mutual symbiotic and proliferation relationship; under the multiplex synergistic actions of the inorganic and organic compound treating agents, oxidizers and the like, all the components cooperate in the dyeing wastewater purification process to display the maximum combination advantages; and the dyeing wastewater purifying agent has efficient treatment effect, enables the wastewater to be discharged after reaching the standard, and has the advantages of low cost and obvious economic benefit.

The invention discloses a sewage treating agent for treating heavy metal wastewater. A proper chemical treating agent and a proper biological treating agent are selected to be optimized according to the characteristic of heavy metal wastewater, useful substances generated in the growth processes of all microorganisms and secretions of the useful substances form matrixes and raw materials for intergrowth, then, a microbial community which is complex in component, stable in structure and wide in function and has various bacteria is formed through a mutual symbiosis and proliferation relationship, and the maximum united advantages can be exerted through reciprocity and mutual benefit in the purification process of the heavy metal wastewater under the synergistic effect of a chemical treating agent. The sewage treating agent is efficient in treating effect, capable of discharging wastewater up to the standard, low in cost and remarkable in economic benefit.

The invention relates to a dust remover, and particularly relates to a wet and dry combined dust remover. The dust remover comprises a primary filter and a gas distributing disc 3, wherein the primary filter is positioned at the gas inlet; the gas distributing disc is positioned on the bottom of the dust remover; a bent channel is arranged above the gas distribution disc and comprises a first turning part, a second turning part and a third turning part; a centrifugal fan is arranged above the bent channel; the inner wall of the dust remover below the centrifugal fan is provided with a dust collecting groove; an HEPA filter screen is arranged above the centrifugal fan; a gas outlet is formed above the HEPA filter screen; the dust remover is internally provided with a particle concentration detector. The dust remover has the characteristics of high integration, low energy consumption and operation flexibility.

The invention relates to a treatment method of the processing wastewater of Chinese galls. The method adopts the following five series process systems, i.e. a flocculation and sedimentation tank, a UFB (Ultra Fine Bright) system, an electrocoagulation system, an A / O (Anoxic / Oxic) system and an active carbon filtration system. The method is characterized by continuous water supply and continuous water discharging and has the advantages of stable treatment effect, high efficiency, simple operation and low operation cost.

The invention relates to a combined type MBR (membrane bioreactor) sewage treating and recycling device for an offshore platform, belonging to the technical field of environmental engineering. The combined type MBR sewage treating and recycling device for the offshore platform comprises three box bodies, wherein the box body I is an oil separation tank, wherein an oil retaining clapboard and an oil skimmer are arranged in the oil separation tank, and the oil separation tank is provided with a water outlet communicated with an adjusting tank; the box body II is internally provided with a septic tank and an adjusting tank at intervals, wherein the upper part of the septic tank is provided with a water outlet pipe communicated with the adjusting tank, a coarse grid and an overflow pipe are arranged in the adjusting tank, and the bottom of the septic tank is provided with a sewage submersible pump and a water outlet pipe; and the box body III is internally provided with a hydrolyzed acidification tank and an MBR tank at intervals, wherein the hydrolyzed acidification tank is internally provided with a fine grid, the upper part of the hydrolyzed acidification tank is provided with a water outlet pipe communicated with the MBR tank, an MBR membrane assembly is arranged in the MBR tank, a water collection pipe at the upper part of the MBR membrane assembly is communicated with a recycled water pump, and an aerator pipe at the bottom of the membrane assembly is communicated with a fan. The combined type MBR (membrane bioreactor) sewage treating and recycling device has the advantages of simple structure, high-efficiency energy saving, running continuity and stability, rapidness in assembly, control automation, convenience for operation, and the like.

The invention relates to vehicle-mounted road smog and haze removing equipment. The theory of a bag-type dust collector used in factories is utilized, an air filtration box is arranged in a vehicle; when a vehicle runs forward at a definite speed, air naturally flows and passes through the box, so that the contaminants in the smog and air are filtered. The device comprises a box, the box is internally provided with a clapboard, the clapboard is internally divided into an air passage which is S-shaped and continuously bent by virtue of a clapboard, and the air passage is provided with a filter screen unit and a filter element unit; the right end of the box is provided with an air inlet, and the left end of the box is provided with an air outlet. The vehicle-mounted road smog and haze removing equipment is capable of moving outdoors by use of a vehicle platform, the vehicle-mounted road smog and haze removing equipment can conveniently remove fog and haze on a road and in a public place and is excellent in movement convenience; the equipment is capable of efficiently filtering haze in the air, haze particles can be efficiently removed by virtue of multilayer treatment of the filter screen unit and the filter element unit, and the treatment efficiency is high; the haze cleaning work demands of public places, roads and airports can be met, and the use effect is excellent.

Disclosed is a laser processing method and device, wherein the processing method includes irradiating laser to micromirror array which is arranged regularly by many small mirrors from laser oscillator which can product laser (L2, L3), changing into sectional modulated light (LM) that corresponds to process-graphics of processed material, irradiating to the processed material through exposed optical system to do the laser processing, thus the direction of optical axis of exposed optical system and the direction of diffracted light produced by laser (L2,L3) through over micromirror should be coincident approximately.

The invention discloses an in-situ repair method of heavy metal polluted soil. Proper straw crushing matters, grass carbons, modified lignin and leguminous plant rhizome leaf shell wastes are selected according to characteristics of the heavy metal polluted soil, and are optimally combined with a chemical absorbing agent and a microbial agent; all the raw materials are mixed according to a certain method to perform in-situ repair for the soil; firstly, the straw crushing matters, grass carbons, modified lignin and leguminous plant rhizome leaf shell wastes are separated out under the effect of other chemical agents; through combination with the auxiliary coordination effect of the chemical absorbing agent, and assistance by mutual growing substrates and raw materials formed by useful substances and secretions thereof generated in the growth process of each microorganism, a microorganism group with complex composition, stable structure, wide functions and multiple bacteria is formed through mutual symbiosis and proliferation effect; the mutual benefit is realized in the purifying process of the soil containing heavy metal; the maximum unite advantage is exerted; and the method is efficient in treatment effect, low in cost and prominent in economic benefit.

The invention provides a novel intelligent sewage treatment plant capable of being directly built on a riverway. A proper river section is selected at the upstream of a polluted river; a three-stage stepped dam is built through scientific design and modular combination; a water body purification device, an adsorption facility and an ecological restoration system are arranged in the corresponding dam body; a complex sewage treatment process is simplified and concentrated in a three-stage treatment dam to form an overwater intelligent sewage treatment plant, the polluted river water is directlysubjected to graded rapid purification treatment, and intelligent control, real-time online monitoring, data transmission and remote control are realized in the whole process. The stepped dam design generates water level difference to facilitate water flowing and scouring of a downstream river channel, and is matched with sewage interception of the downstream river channel, so that the polluted river channel is thoroughly treated, and water ecological natural restoration is accelerated. The intelligent river sewage treatment plant can be moved and flexibly reconstructed in other river sections, and is particularly suitable for treatment of polluted riverways with large sewage amount, treatment of urban sewage discharge channels or treatment of watershed pollution.

The invention discloses an organic-inorganic compound sewage treatment agent and a preparation method thereof. The compound treatment agent is prepared from the following raw materials in parts by weight: 6 to 8 parts of gelatin, 9 to 14 parts of cysteine, 9 to 24 parts of thioglycolic acid, 20 to 24 parts of sodium lignosulfonate, 22 to 26 parts of carboxymethyl chitosan, 12 to 13 parts of urea,25 to 27 parts of limestone, 14 to 16 parts of sepiolite, 28 to 30 parts of bentonite, 25 to 30 parts of fly ash, 24 to 28 parts of quick lime, 13 to 15 parts of medical stone, 13 to 15 parts of aluminum sulfate, 15 to 17 parts of ferric chloride and 12 to 14 parts of polyethyleneimine xanthic acid. The compound treatment agent provided by the invention combines advantages of an inorganic mineralabsorbent and an organic biological high polymer flocculating agent; the removing rates on heavy metal, COD (Chemical Oxygen Demand), SS (Suspended Solids), TP (Total Phosphorus) and TN (Total Nitrogen) reach 95 percent or more respectively; the content of the heavy metal, the COD, the SS, the TP and the TN in treated river channel sewage meets type IV requirements in a table 1 of National Environmental Quality Standard for Surface Water of the People's Republic of China GB3838-2002.

The invention discloses an advanced treatment method of chemical industry pharmaceutical wastewater biochemical tail water. A reinforced coagulative precipitation treatment technique, a rapid filtration technique, a catalytic ozone oxidation treatment technique and a magnetic microsphere resin adsorption treatment technique are organically combined for treatment; and in the reinforced coagulative precipitation treatment stage, the microbial flocculant, natural high-polymer flocculant, inorganic flocculant and other substances generate useful substances and secretions thereof in the growth process so as to form the substrates and raw materials for mutual growth, a complex-composition stable-structure wide-function microbial flora with various microbes is formed through the mutual symbiotic and proliferation relationship, and the three subsequent technique are combined as assistants to implement mutual benefits in the chemical industry pharmaceutical biochemical tail water purification process, thereby displaying the maximal combined advantages. The method has efficient treatment effect, so that the wastewater reaches the reclaimed water recycling standard.

A water treating agent and a preparing method thereof are provided. The water treating agent is prepared from following components by weight: 50-70 parts of lignite-based activated carbon, 20-30 parts of polyaluminium chloride, 5-15 parts of nanometer zinc oxide, 3-7 parts of carboxamidine and 2.5-3.5 parts of coal tar. The water treating agent has good removal functions for degradation-resistant organic matters in waste water. The COD content of waste water treated by using the water treating agent can be stably controlled below 100 mg / L, and reaches primary integrated waste water discharge standards of national regulations in China.

The invention provides a preparation method of a domestic sewage treatment agent. The preparation method includes the following steps that bentonite and attapulgite are subjected to high-temperature roasting pretreatment, then the mixture is soaked in a mixed solution composed of ferric salt and aluminum salt, after the pH is adjusted, bentonite and attapulgite loaded with iron-aluminum oxides areobtained through roasting, after the bentonite and attapulgite loaded with the iron-aluminum oxides are mixed with rare earth modified vermiculite, poly aluminum chloride, polyferric sulfate and activated carbon, the domestic sewage treatment agent is obtained, and the domestic sewage treatment agent is cooperated with hydrogen peroxide in use. The domestic sewage treatment agent obtained through the preparation method, the domestic sewage treatment agent is high in removal rate of total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD and SS in water in a short time, no secondary pollution is caused, and the domestic sewage treatment agent has the functions of disinfection, bacteriostasis and flocculation.

The invention discloses a disaster jellyfish emergency disposal method. According to the disaster jellyfish emergency disposal method, a mode that an emergency disaster jellyfish mincing device and a jellyfish collection system are combined is adopted, wherein a hollow steel wire is arranged at the bottom of a drag net; when the drag net is driven to quickly advance by a ship, jellyfishes gathered at the bottom of the drag net are crushed by means of water flow impact pressure; at a region with relatively shallow water, the disaster jellyfish collection system is combined; a jellyfish collection passage designed in the disaster jellyfish collection system is positioned at an included angle formed by a W-shaped interception net; and on the tide, the jellyfishes are introduced into and gathered to the jellyfish collection passage by the interception net under the action of the tide and then are killed off in a centralized way. According to the disaster jellyfish emergency disposal method, a large number of disaster jellyfishes are effectively disposed, the ecological hazard of the jellyfishes can be reduced, and a quick, high-efficiency and convenient disposal effect can be performed on the jellyfish disaster which outbreaks rapidly.

The invention discloses a composition capable of treating domestic sewage. The composition comprises the following components in parts by weight: 2-13 parts of calcium carbonate, 3-7 parts of mica, 6-17 parts of zeolite powder, 21-33 parts of kieselguhr, 0.5-3 parts of alums, 1-6 parts of potassium permanganate, 2-5 parts of ferric trichloride, 5-11 parts of aluminum oxide, and 3-9 parts of titanium dioxide; a microbial preparation for providing support to remove nitrogen in the sewage is added during the use of the composition. According to the preparation method, the chemical method and the biological method are combined; in addition, the microorganism treatment conditions are controlled, so that the short-cut nitrification and denitrification process can be achieved; the energy consumption is reduced; the processing speed is increased; and the removing efficiency of nitrogen in water is increased.

The invention discloses a submerging type ecological water cube system used for black and stink water body pollution treatment, ecological restoration, water quality improvement, and water body maintenance in rivers, lakes, reservoirs, river mouths, and gulfs. The submerging type ecological water cube system comprises tank bodies, aeration guide rods, ecological water lungs, emergent aquatic plants, submerged plants, a microbial carrier inoculated with microbes, and external artificial light sources; the emergent aquatic plants and the submerged plants grow on system upper surface and peripheral side surfaces respectively, so that full utilization of the three-dimensional space from water bottom to water surface is realized, the contact effect area of plants with water body is enlarged, full absorption on nitrogen phosphor, reduction of suspension matters, and supplement of ecological oxygen demands are realized; the microbial carrier is inoculated with a microbial agent to increasedmicrobe contact effect specific surface area; the ecological water lungs composed of aquatic animals are used for filtering and eating of eutrophic substances such as planktonic algae, suspension particles, and organic chips, water plant photosynthesis and adsorption effect on nitrogen and phosphor are promoted, water body black color and stink smell are eliminated, and a water body ecological system is established.

The invention discloses a novel treatment device for high-salt-content degradation-resistant organic wastewater. The device comprises two parts, namely, plasma sewage treatment and multi-stage flash desalting. The device disclosed by the invention is capable of effectively treating wastewater containing degradation-resistant organisms and high-concentration salt generated in the conventional chemical industry, particularly the fine chemical engineering, has the advantages of high treatment efficiency, low equipment cost, low operation expense, stable operation, and the like, further solves the problems that the heat generated in the process that wastewater is treated with plasma is lost and the later high-salt wastewater is hard to chemically treat effectively, and has a good application prospect and very high application values.

The invention provides a domestic sewage treatment agent which comprises the following raw materials in parts by weight: 30-50 parts of rare-earth modified vermiculite, 20-40 parts of bentonite, 10-20parts of attapulgite, 2-6 parts of ferric salt, 5-10 parts of aluminum salt, 10-20 parts of aluminum polychloride, 10-20 parts of polyferric sulfate, 8-16 parts of activated carbon, 5-10 parts of hydrogen peroxide and 50-100 parts of water. The domestic sewage treatment agent provided by the invention can achieve a high removal rate on total nitrogen, total phosphorus, ammonia nitrogen, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and SS in water in a short time, does not cause secondary pollution, and has the functions of disinfection, bacterium inhibition and flocculation.

The invention relates to a method for reusing beneficiation wastewater of lead-zinc oxide ore. The method includes the steps that lead concentrate pulp obtained through lead flotation is subjected to the overflowing action in a concentrate pool, so that wastewater flows into a wastewater pool, an alkaline flocculating agent is added into the wastewater pool, the wastewater flows into a settling pond for flocculating settling, and liquid supernatant enters the next clean water basin and is returned through a pump to serve as lead flotation supplementary water; lead flotation tailings enter into the lead flotation working procedure; zinc concentrate pulp obtained through zinc flotation is subjected to the overflowing action in a concentrate pool, so that wastewater flows into a wastewater pool, an alkaline flocculating agent is added into the wastewater pool, the wastewater flows into a settling pond for flocculating settling, and liquid supernatant flows into the next clean water basin and is returned through a pump to serve as zinc flotation supplementary water; and zinc flotation tailings are led into a tailing pond, the alkaline flocculating agent is added for filtering after the stirring reaction is completed, and accordingly dry tailings can be obtained. The requirement of dry discharging treatment of the tailings is met, and filter liquor returns to serve as zinc scavenging supplementary water.

The invention discloses an oil-containing sludge smoldering treatment device which comprises a fan, an outlet end of the fan is connected to a heater through an outlet pipeline of the fan, an outlet end of the heater is connected to a smoldering furnace for containing oil-containing sludge, the top of the smoldering furnace is connected to a cooler through a steam outer conveying pipeline, an output end of the cooler is connected with a gas-liquid cyclone separator, a liquid outlet end of the gas-liquid cyclone separator is connected with a clean water outer discharging pipe, a gas outlet endof the gas-liquid cyclone separator is connected to a tail gas treatment device, an outlet end of the tail gas treatment device is connected with an emptying pipe, the smoldering furnace comprises a smoldering furnace body, a smoldering gas uniform distributing device is arranged at the inner bottom of the smoldering furnace body, an inlet end of the smoldering gas uniform distributing device is connected with a hot gas inlet pipe, space for containing the oil-containing sludge is reserved on the upper side of the smoldering gas uniform distributing device, a steam recovery cover is connectedat the top of the smoldering furnace body, and the steam outer conveying pipeline is connected onto the steam recovery cover. According to the device, the oil-containing sludge can be timely and efficiently treated in an energy-saving and environment-friendly manner.