124results about "Treatment involving filtration" patented technology

The invention discloses a rapid treatment method for a fracturing flowback fluid. The rapid treatment method comprises: (1) pumping a fracturing flowback fluid into an electron beam irradiation chamber, and staying for 20-120 s in the electron beam irradiation chamber; (2) adding a coagulant and a flocculant into the sewage treated by the electron beam irradiation chamber, and clarifying in a flocculation precipitation pool; (3) feeding the water treated by the flocculation precipitation a precision filtration pool, and carrying out fine filtration; and (4) collecting the water filtered by theprecision filtration pool in a clear water pool. According to the present invention, the gel breaking stage uses physical gel breaking so as to achieve clean gel breaking and greatly reduce the sideeffects of external agents, such that the reuse quality of the fracturing flowback fluid is good, and the fracturing flowback fluid is safe; the gel breaking time is shortened from 5-120 min to 20-120s so as to greatly improve the gel breaking speed; and compared with the traditional chemical gel breaking method and the biological gel breaking method, the method of the present invention simplifyfeeding equipment and other supporting equipment, reduces the occupation area, and reduces the complexity of manual operation.

The invention relates to a system for preparing potassium sulfate from high-salt-content industrial wastewater and belongs to the field of water treatment. The high-salt-content industrial wastewater is pretreated through a regulating pool, a pipeline mixer, a high-density precipitate pool, a V-type filter pool, ion exchange resin and an ultrafiltration membrane system and then concentrated through a first section reverse osmosis membrane system and a second section reverse osmosis membrane system and then enters a nanofiltration membrane system for salt separation, nanofiltration produced water and thick water enter a plate-pipe type high-pressure flat sheet membrane system II and a plate-pipe type high-pressure flat sheet membrane system I respectively to be concentrated again, the concentrated thick water enters a freezing crystallization system for crystallization, crystals enter a potassium sulfate preparing system to be converted, freezing mother liquor and the concentrated nanofiltration produced water enter an advanced oxidizing system for oxidation and then enter an evaporative crystallization system for crystallization, and produced sodium sulfate crystal salt enters a potassium sulfate preparing system for conversion. The system has the advantages that the scale of the nanofiltration system is reduced, and investment cost is reduced; salt separation is thorough, and operation cost is low; the purity of the crystallization salt is high; mirabilite and sodium sulfateare converted into potassium sulfate, and the economic value is improved.

A xylose production process utilizes corn cobs as raw materials and sequentially comprises the steps of steam explosion, hydrochloric acid hydrolysis, solid-liquid separation, decoloring neutralization, ultrafiltration, electrodialysis desalination, low-pressure reverse osmosis membrane concentration, medium-pressure reverse osmosis membrane concentration, MVR evaporation and concentration, chromatographic refined desalination and purification, ion exchange resin refining, concentration, crystallization, centrifugation and drying, and finally a xylose product is obtained. The xylose production process reduces the energy consumption in xylose production and reduces the pollution.

The invention discloses a treatment method of landfill leachate. The treatment method comprises the following steps: adding a flocculating agent and a coagulant aid into the landfill leachate for full reaction, and separating to obtain first treatment fluid; adding an oxidant for full reaction, and obtaining second treatment fluid; adding a water softening agent for full reaction, and obtaining third treatment fluid; performing triple effect evaporation on the third treatment fluid to obtain condensed fluid; performing A2/O technological treatment on the condensed fluid, and filtering to obtain fifth treatment fluid; performing sand filtration, carbon filtration, ultrafiltration and RO (Reverse Osmosis) membrane treatment on the fifth treatment fluid in sequence to obtain sixth treatment fluid. According to the treatment method of the landfill leachate, all the indexes of the sixth treatment fluid obtained by treating the leachate of a waste landfill meet a discharging standard, so that the landfill leachate can be discharged with the standard level; the landfill leachate can be harmless and recycled to the maximum extent.

The invention discloses an energy-saving gear cleaning device. The energy-saving gear cleaning device comprises a workbench. A control panel is arranged on the front surface of the workbench. First supporting rods, a motor, a cleaning chamber, an air drying chamber and second supporting rods are sequentially arranged on the top of the workbench from left to right. A drive shaft is rotationally connected between the first supporting rods. One end of the drive shaft penetrates the first supporting rods and extends to the outer portions of the first supporting rods. The end, exposed outside, of the drive shaft is fixedly connected with a drive wheel, and the drive wheel is in transmission connection with a runner of the motor through a belt. According to the energy-saving gear cleaning device, cleanout fluid obtained after being used for cleaning a gear can be filtered and purified through a filter device, then the cleanout fluid is pumped into a fluid storage tank to be reutilized through a water pump, the gear cleaning cost is reduced, and the cleaned gear can be better subjected to air drying; and the noise of an inner cavity of the air drying chamber can be absorbed and lowered, and people can be in a more comfortable work environment.

The invention provides a process for treating arsenic-containing wastewater. The process includes removing arsenic by a 'hydrogen peroxide plus iron salt' method, adding lime to the wastewater to increase the pH, reacting calcium ions with the arsenic in the wastewater to generate precipitates of calcium arsenite and calcium arsenate, and performing sedimentation and filtration to remove the arsenic; adding ferrite and hydrogen peroxide to obtained filter liquor, performing sufficient aeration and oxidation by compressed air, oxidizing Fe2+ in the wastewater into Fe3+, oxidizing As3+ into As5+, generating precipitates of calcium/ferric arsenate and calcium/ferric arsenite, and removing the arsenic through filtration to meet emission standards. The process, in which the arsenic-containing wastewater is treated by a lime-iron salt method, has the advantages of few type of feed drugs, high sedimentation efficiency, stable and up-to-standard wastewater discharge, low operating cost, convenience in operation and the like, and is widely applied.

The invention discloses a sewage impurity filtering device, which comprises support legs. A filtered sewage output pipe and a filtrate discharge pipe are located on the support legs; a filter disc isconnected to the upper parts of the filtered sewage output pipe and the filtrate discharge pipe, and one side of the filter disc is connected to a sewage input device; a rotary column is vertically installed at the center of the filter disc; filter screens in different directions are uniformly dispersed at the edge of the rotary column; a tilted filter screen impurity cleaning apparatus is arranged at the lower part at the inner wall of the filter disc; a pressure discharge switch is installed in the filtered sewage output pipe; and a transmission apparatus connected to the pressure dischargeswitch and the rotary column is arranged at the rear outer wall of the filter disc. The problem that large impurity is left in sewage and blocks the filter screens is overcome, the sewage filtering efficiency is increased, and sewage and large impurity are automatically separated. The impurity left on the filter screens doesn't need manual cleaning. The sewage impurity filtering device is convenient for people, simple in structure and convenient to use.

A water disinfection delivery treatment system first filters the supply by a particle and then a carbon filter. The partially treated flow is split in two and a first part passes through a first cutoff valve and is fed into a disinfection (iodine) chamber, filter or feeder via a flow restricter. The chamber output passes through a second solenoid driven cutoff valve. The second part is fed to a third cutoff valve and this valve's output is summed with the second valve's output and then fed into a holding tank. The tank retain's a volume such that the water remains therein for at least a period sufficient to permit a minimum 3 log reduction of pathogenic microbes. A final carbon filter is downstream of the tank as is a meter and dispenser. A method is also provided for delivering potable drinking water.

The invention relates to a wastewater split-flow separation and quality-based treatment utilization process method. Wastewater is subjected to split-flow into high-concentration waste liquid and low-concentration clean water; the low-concentration water is simply pretreatmented, and is subjected to reverse osmosis separation into fresh water and concentrated water; the resource utilization of fresh water is realized; the quality-based treatment is performed for utilizing concentrated water, so that the wastewater treatment realizes reduction, harmlessness and recycling. The defects of complexity, long flow process, great consumption, serious secondary pollution and the like of the existing wastewater treatment process are overcome. The process method is suitable for treatment and utilization of various kinds of low-salinity industrial wastewater and municipal domestic sewage.

The invention relates to a water purifying device capable of rapidly replacing a filter element. The water purifying device comprises a filtering core and a water purifier body, wherein the filtering core comprises a plurality of filter elements for filtering and purifying water; a cylindrical shell is arranged outside the filtering core, and a water inlet and a water outlet are formed in two ends of the shell; the shell is formed by two hollow semi-cylinders, the inner wall of each semi-cylinder is provided with a leak-proof pad for preventing the water leakage, and an installation groove matched with the appearance of the filter element is formed in the leak-proof pad; the shell also comprises flanges which are positioned on the semi-cylinders and used for locking the shell by virtue of screws; when the filter elements need to be replaced, only the screws on the flanges need to be disassembled, and then the shell is opened, so that convenience in installation and disassembly is realized; and the integral structure is simple, and the cost is low.

The invention discloses industrial acidic sewage treatment equipment. The treatment equipment comprises a sewage filtering tank, a sewage neutralization tank, a sewage reaction tank and an impurity collection tank, wherein a filter screen is arranged in the sewage filtering tank, a brush roller is arranged at the upper part of the filter screen, and the brush roller is connected with a pushing mechanism. The brush roller can be pushed by the pushing mechanism to move in a moving groove, so impurities on the filter screen are removed and cleaned into the impurity collecting tank; sewage can bepumped into the sewage neutralization tank through a first pump, stirring blades are driven by a stirring motor to stir the sewage, and a chemical pumping cylinder can be driven by the stirring motorto work at the same time, so a chemical in a chemical tank is pumped into the sewage neutralization tank to be neutralized with the sewage; and the sewage can be pumped into the sewage reaction tank again for a reaction through the second pump. The equipment of the invention has the advantages of simplicity and convenience in sewage treatment, capability of ensuring that sewage meets neutralization requirements and capability of automatically cleaning and filtering impurities, and is mainly used for sewage treatment.

The invention relates to sewage treatment equipment, in particular relates to a residue cleaning device used for sewage treatment, and aims at providing a residue cleaning device which is used for thesewage treatment, simple in operation process and good in treatment effect and requires smaller resources. For achieving the aim, the provided residue cleaning device used for the sewage treatment comprises supporting legs and the like, wherein a first supporting plate is arranged at the top of the supporting legs at the left side and the right side, a movable filtration mechanism is arranged onthe supporting legs at the right side, a material guiding pipe is arranged at the middle part of the left side, and a collecting mechanism is arranged at the top of the material guiding pipe. The residue cleaning device used for the sewage treatment has the advantages that the movable filtration mechanism and the collecting mechanism cooperate with each other for treating sewage guided out from the material guiding pipe, and the optimization of an auxiliary mechanism and a disinfection mechanism is utilized, so that the effects of simple operation process, good treatment effect and smaller required resources are achieved.

The invention discloses a multi-stage ecological water tank and ecological pond combined system. The system comprises a ladder-type ecological water tank and an ecological pond, wherein the ecological pond is arranged in a river channel and comprises an enclosure which separates out an enclosure region from the river channel, a plurality of bionic aquatic plants are arranged in the enclosure region, and aeration holes corresponding to the bionic aquatic plants are formed in the lower parts of the bionic aquatic plants and are communicated with aeration devices; a water intake is formed in the ecological pond; the ladder-type ecological water tank comprises a first ecological water tank to an Nth ecological water tank which are sequentially arrayed from outside to inside and from high to low; the first ecological water tank is communicated with the water intake through a water intake pipeline; adsorbing fillers are arranged in the first ecological water tank, and filler-water plant-microorganism purification systems are arranged in a second ecological water tank to the Nth ecological water tank; a water outlet is formed in the bottommost ecological water tank in the ladder-type ecological water tank and is communicated with the ecological pond. By combining in situ regulation with abnormal-site regulation of the river channel, the black and odorous water quality is efficiently purified.

The invention discloses a method for treating coking wastewater, and relates to the technical field of coking wastewater treatment. A coking wastewater treatment system is adopted for treating, the wastewater treated by the coking biochemical system is pumped into a water distributor, the wastewater is injected into the bottom of an inclined-tube sedimentation tank by the water distributor, the wastewater is blocked by an inclined-tube packing zone in the rising process, the wastewater is discharged from the top of the inclined-tube sedimentation tank after part of suspended matters are removed to enter an upper column liquid tank, the wastewater is pumped to a shallow sand filter group by an upper column liquid pump and filtered and then enters a resin adsorption tower, the wastewater is adsorbed by resin and then the effluent flows into a tail water tank from the tower bottom. By adopting the method, the intercepting efficiency of chroma, COD and total cyanides is high, the yield of concentrated pollutants is low, the water quality stability of discharged tail water is good, the water quality and stability of the tail water are effectively improved, and the water quantity is reduced significantly; and the method has the advantages of short flow, low space occupation, appropriate investment, low operation cost and the like.

The invention discloses a leather industry chromium-containing wastewater recycling treatment process system. The process system comprises a pretreatment system, a membrane separation system and a chromium recovery system which are sequentially communicated; the pretreatment system is used for the pretreatment of leather chromium-containing wastewater before membrane separation; the membrane separation system performs freshwater separation and chromium solution concentration treatment on the pretreated chromium-containing wastewater; and the chromium recovery system recycles chromium from a concentrated chromium solution obtained in the membrane separation system in order to obtain chromium powder with the chromium content being greater than 5%. The chromium-containing wastewater discharged from a leather tanning workshop is filtered and finely filtered by the pretreatment system, and then enters the membrane separation system composed of a nanofiltration device and an electrodialysisdevice to produce freshwater for direct reuse, obtained concentrated water undergoes electrodialysis desalination to prepare strong brine, and the remaining concentrated chromium solution enters the chromium recovery system and undergoes spray drying to obtain the chromium powder. The process system greatly saves precious water resources, and also realizes the recycling of chromium resources in order to achieve the recycling of the leather industry chromium-containing wastewater.

The invention provides efficient wastewater-treatment purifying equipment. The efficient wastewater-treatment purifying equipment comprises a machine body, and the machine body is sequentially dividedby partition plates into a mixing layer, a treatment purifying layer and a driving layer from top to bottom; a water inlet pipe is fixedly connected to the upper portion of the left surface of the machine body, a mixing pipe is arranged on the right side of the water inlet pipe, a water outlet pipe is fixedly connected to the lower portion of the mixing pipe, a chemical box is fixedly connected to the middle of the upper portion of the machine body, a motor is arranged on the lower surface of the machine body, a driving gear is fixedly connected to the upper portion of the motor through a primary rotating shaft, driven gears are arranged on the two sides of the driving gear, centrifuging drums are fixedly connected to the upper portions of the driven gears through secondary rotating shafts, active-carbon filtering nets are fixedly connected outside the centrifuging drums, and a water draining pipe is fixedly connected to the lower portion of the right surface of the machine body. According to the efficient wastewater-treatment purifying equipment, the defects in the prior art are overcome, designing is reasonable, the structure is compact, and through the mixing pipe, the centrifuging drums and the active-carbon filtering nets of a U-shaped structure, the efficient wastewater-treatment purifying capacity is achieved.

The invention discloses a pretreatment device for wastewater reuse. The device comprises a shell, wherein a water inlet is formed at the upper end of the shell; a water draining pipe is arranged at the lower end of the shell; a reflux device is arranged on the water draining pipe; a second filtering film is arranged in the water draining pipe; a motor and a control switch are arranged on the upper surface of the shell; the motor is electrically connected with the control switch. The pretreatment device for wastewater reuse firstly treats the wastewater in the manner of multi-level filtering, can save time for the subsequent wastewater treatment and can prolong the service life of the related device in the subsequent treatment link; a sewage draining port which is capable of being manually opened and closed is formed on the device; the sewage draining port is under a closed state in a filtering process, so that the sewage can be more sufficiently filtered; the sludge in the sewage can be discharged after the filtering is ended, so that the preparation for the filtering at the next time can be made; a stirring device is arranged for continuously stirring the wastewater in a filtering process, preventing wastewater lamination and blocking, so that the filtering efficiency is increased; the reflux device is arranged for further increasing the efficiency of wastewater treatment.

The invention discloses a zero-discharge treatment method and system for mine strong brine. The zero-discharge treatment method for the mine strong brine comprises the following steps: S1, carrying out primary filtration and impurity removal treatment on the mine strong brine, and then carrying out primary reverse osmosis concentration; S2, performing chemical softening treatment on the primary reverse osmosis concentrated water; S3, carrying out secondary filtration and impurity removal treatment on the softened produced water, and then carrying out secondary reverse osmosis concentration; S4, carrying out microfiltration treatment on the secondary reverse osmosis concentrated water; S5, carrying out evaporation and concentration treatment on the microfiltration produced water; S6, performing sodium sulfate crystallization treatment on the concentrated solution, and sequentially thickening, centrifuging and drying the nitre slurry to obtain sodium sulfate; and S7, carrying out sodium chloride crystallization treatment on the saturated mother liquor subjected to sodium sulfate crystallization treatment in the step S6, and sequentially thickening, centrifuging and drying salt slurry to obtain sodium chloride. According to the invention, the water recovery rate of the production wastewater is greatly improved, the environment is protected, the crystalline salt is recycled, and the zero emission target of the mine strong brine is really achieved.

The invention provides a gear and rack semi-meshed feeding type sewage processing device which comprises a shell. A plurality of supporting legs are fixedly connected with the bottom of the shell. Thebottom of the shell is in a conical shape. A reagent adding device is arranged on the top of the shell. The reagent adding device comprises a first sleeve. The first sleeve is fixedly connected withthe upper portion of the shell. The bottom end of the first sleeve is communicated with the interior of the shell. A feeding hopper is fixedly connected with the top end of the first sleeve. A movablepartition plate is arranged in the middle of the first sleeve. A gear and rack semi-meshing device is connected with the right side of the movable partition plate and comprises a horizontal column. The left end of the horizontal column is fixedly connected with the right side wall of the first sleeve. A groove with a leftward opening is formed in the horizontal column. The sewage processing device has the advantages that a rack meshed with an incomplete gear moves to the right side so as to drive the movable partition plate to move to the right side, then the first sleeve is opened by a certain distance, and the releasing of a flocculant is realized.

The invention discloses a treatment method for garbage leachate. The treatment method comprises the following steps: putting the garbage leachate into a microbiological treatment system; completely degrading the garbage leachate through electro-microorganisms and generating electric energy; carrying out centrifuging and extraction filtration on output water of an anode chamber of the microbiological treatment system and removing large-particle substances and taking supernatant; enabling a raw material solution to enter a positive penetration device; adjusting flows of the raw material solution and a drawing solution to keep the flows consistent; enabling the raw material solution and the drawing solution to enter from the lower part of the positive penetration device by adopting a crossed flow manner and return from the upper part of the positive penetration device; and calculating changes of mass in the drawing solution. The invention provides a process for treating the garbage leachate through combination of a microbiological fuel cell and a positive permeable membrane; output water of the microbiological fuel cell is used as positive penetration input water; and an active layer of the positive permeable membrane is arranged toward one end of the raw material solution and the content of organic matters and ammonia nitrogen is effectively reduced; and meanwhile, dirt removal and electric energy generation are realized.

The invention provides an industrial water recycling and reusing device which comprises a regulating tank, a settling tank, a water storing tank, a first grid, a second grid, biological films, a sludge pump, an ultraviolet lamp, a filter screen, a filer film and an ozone machine .The first grid is installed at the upper end of the regulating tank, the second grid is assembled under the first grid, and the biological films are assembled on a support plate; a sludge port is formed in the bottom of the settling tank, the sludge pump is installed at the lower end of the sludge port, and a sludge output pipe is assembled on the upper portion of the sludge pump; the ultraviolet lamp is installed at the top of the water storing tank, the filter screen is assembled in the water storing tank, and the filter film is assembled at the lower end of the filter screen; an ozone inlet is formed in the bottom of the water storing tank, and the ozone machine is installed under the ozone inlet .According to the industrial water recycling and reusing device, the industrial water recycling and reusing functions are effectively achieved, purifying treatment is conveniently conducted on sewage, the sewage treatment effect is improved, water is saved, and the water resource using efficiency is improved.

The invention discloses an eco-friendly sewage high-efficiency pressure filtration treatment device. The device comprises a water feeding pipe, a treatment tank, a stirring motor, a heater, a pressurefiltration tank, a filter plate, a spring, a water outlet pipe, a gas collection tank, an impurity discharge pipe and an ionization bar. The side wall of the top of the treatment tank is connected tothe water feeding pipe. The top of the treatment tank is provided with an agent addition pipe. The top of the treatment tank is provided with a stirring motor. An output shaft of the stirring motor is connected to a rotation shaft. The inner wall of the treatment tank is provided with multiple defoaming spines. The ionization bar is arranged in the treatment tank. The inner wall of the treatmenttank is provided with the heater. The side wall of the treatment tank is provided with a timer. The top of the treatment tank is communicated with the gas collection tank through a breather pipe. Thebottom of the treatment tank is provided with an inclined guide plate. The lowest end of the inclined guide plate is communicated with the bottom of the pressure filtration tank through a liquid conveying pipe. Multiple filter plates are arranged in the pressure filtration tank. The top of the pressure filtration tank is provided with a water outlet pipe. The bottom of the pressure filtration tankis provided with the impurity discharge pipe. The eco-friendly sewage high-efficiency pressure filtration treatment device improves sewage treatment efficiency and effects and environmental protection safety, has a simple structure, realizes a low cost, is easy to use and is conducive to promotion.

The invention discloses a cleaning device for motorcycle maintenance. The device comprises a base and a water tank, wherein the water tank is fixedly arranged on the upper surface of the base; a cleaning box is fixedly arranged on the upper surface of the base, and two brush shafts are arranged in the cleaning box; a fixed rod is movably connected above the two brush shafts through bearings; a supporting tube is arranged below the brush shafts; a gear shaft is arranged in the supporting tube, and the brush shafts are in transmission connection with a motor through the gear shaft; a water pumpis started, a cleaning solution is provided for the water tank, meanwhile, the motor is started, and the motor drives the brush shafts to rotate in the horizontal direction through the gear steering of the gear shaft; when the cleaning solution is sprayed on a part and a brush by a spray head, the brush is used for repeatedly cleaning the part so that dust stains on the part can be cleaned by cooperating with the cleaning liquid; baffles on a bearing plate can prevent the small unstable part from being swept away by the brush; and the needle-shaped brush head at the top end of the brush can clean fine places on the part.

The invention discloses a sewage purification treatment device for a municipal sewage pipe network. The sewage purification treatment device comprises a collection chamber and a filter chamber formedin one side; the collection chamber and the filter chamber are communicated with each other through a communication pipe, one end of the communication pipe is arranged at the lower half part of one side of the collection chamber, and the other end of the communication pipe is arranged at the upper half part of the filter chamber; a rectangular groove is dug in the top of the filter chamber, the upper portion of the filter chamber is provided with a horizontal support frame, a convex block matched with the rectangular groove is fixedly welded to the bottom of the horizontal support frame, a filter net is also hung at the bottom of the horizontal support frame, a liquid inlet pipe is installed at the side, away from the filter chamber, of the collection chamber, the top of the liquid inlet pipe is communicated with a water storage barrel, the lower half part of the collection chamber is arranged to be in a funnel shape, and the bottom of the collection chamber is communicated with a mudoutlet pipe. According to the sewage purification treatment device for the municipal sewage pipe network, multi-stage filtering can be achieved, and the filter net can also be treated and prevented from being clogged.