CN115925180A - Fenton treatment equipment and method - Google Patents
Fenton treatment equipment and method Download PDFInfo
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- CN115925180A CN115925180A CN202211674418.1A CN202211674418A CN115925180A CN 115925180 A CN115925180 A CN 115925180A CN 202211674418 A CN202211674418 A CN 202211674418A CN 115925180 A CN115925180 A CN 115925180A
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Abstract
The invention discloses a Fenton treatment device and a treatment method, belonging to the technical field of water treatment, and the Fenton treatment device comprises a box body, a hydrodynamic proportion dosing pump, a first pH adjusting tank, a ferrous dosing tank, a hydrogen peroxide dosing tank, a Fenton reaction tank, a second pH adjusting tank, a PAC dosing tank, a PAM dosing tank and a coagulating sedimentation tank which are arranged in the box body, wherein the first pH adjusting tank, the ferrous dosing tank and the hydrogen peroxide dosing tank are sequentially arranged on the left side in the box body from front to back, the first pH adjusting tank is communicated with the ferrous dosing tank through a first pipeline, the ferrous dosing tank is communicated with the hydrogen peroxide dosing tank through a second pipeline, and the hydrodynamic proportion dosing pump is respectively arranged on the first pipeline and the second pipeline. According to the Fenton treatment equipment and the treatment method, the chemicals are automatically added according to the inflow rate, so that the manual intervention is reduced, and the effluent reaches the standard.
Description
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to Fenton treatment equipment and a Fenton treatment method.
Background
The Fenton reaction is an inorganic chemical reaction in which hydrogen peroxide and ferrous iron ion Fe are reacted 2+ The mixed solution of (a) oxidizes many known organic compounds such as carboxylic acids, alcohols, esters into an inorganic state. The reaction has high capability of removing organic pollutants which are difficult to degrade, and is widely applied to the treatment of printing and dyeing wastewater, oily wastewater, phenol-containing wastewater, coking wastewater, nitrobenzene-containing wastewater, diphenylamine wastewater and other wastewater.
The Fenton reaction needs to control the pH value well and the amount of added ferrous iron and hydrogen peroxide well, so that an excellent technical manager is needed in the traditional Fenton treatment process, and the effluent can reach the standard and the treatment efficiency can be guaranteed only by adjusting the dosage of the medicament at any time according to specific conditions. The same coagulating sedimentation treatment needs to control the pH value well and ensure the full mixing of the wastewater and the medicine so as to ensure good precipitating and coagulating effects.
Disclosure of Invention
The invention aims to provide Fenton treatment equipment and a Fenton treatment method, which can automatically add medicine according to the inflow rate of water, reduce manual intervention and ensure that the effluent reaches the standard.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides Fenton treatment equipment which comprises a box body, a hydrodynamic proportion dosing pump, a first pH adjusting tank, a ferrous dosing tank, a hydrogen peroxide dosing tank, a Fenton reaction tank, a second pH adjusting tank, a PAC dosing tank, a PAM dosing tank and a coagulation sedimentation tank, wherein the first pH adjusting tank, the ferrous dosing tank and the hydrogen peroxide dosing tank are arranged in the box body from front to back, the first pH adjusting tank, the ferrous dosing tank and the hydrogen peroxide dosing tank are arranged in the box body in sequence, the first pH adjusting tank and the ferrous dosing tank are communicated through a first pipeline, the ferrous dosing tank and the hydrogen peroxide dosing tank are communicated through a second pipeline, hydrodynamic proportion dosing pumps are arranged on the first pipeline and the second pipeline, the Fenton reaction tank is positioned on the right side of the hydrodynamic dosing tank and is communicated with the hydrogen peroxide dosing tank, the second pH adjusting tank, the PAC dosing tank and the PAM dosing tank are communicated with each other in sequence from front to back in the box body on the right side of the Fenton reaction tank, the PAC dosing tank and the PAM dosing tank are communicated with the ferrous dosing tank, and the ferrous proportion dosing pump and the ferrous proportion dosing tank and the ferrous proportion dosing pump between the ferrous dosing tank and the PAM dosing tank.
Preferably, the second pH adjusting tank, the PAC adds the medicine pond, and the PAM adds the medicine pond and all is provided with stirring subassembly and gas distribution subassembly, the one end of gas distribution subassembly is located the below of stirring subassembly, the other end of gas distribution subassembly passes agitating unit and extends to the outside of box, the fixed hair-dryer in one side at box top, the hair-dryer has the air supply pipe through hose connection, the air supply pipe communicates with the one end that each gas distribution subassembly extends out of the box outside, the opposite side at box top is fixed with the motor, the motor passes through the stirring subassembly rotation of drive assembly drive second pH adjusting tank, the stirring subassembly of second pH adjusting tank and the stirring subassembly of PAC adds the medicine pond and pass through the drive assembly transmission connection, the stirring subassembly of PAC adds the medicine pond and the stirring subassembly of PAM and adds the medicine pond and pass through the drive assembly transmission connection, be connected with the spring between air supply pipe and the box roof, the top of box is fixed with the impeller, the impeller is located the below of impeller, and add the stirring subassembly drive of PAC with the medicine pond by the PAC.
Preferably, the stirring assembly comprises a first bearing seat, a hollow stirring shaft and stirring blades, the first bearing seat is fixed at the top of the box body, the bottom end of the hollow stirring shaft penetrates through the first bearing seat and the top wall of the box body, and a plurality of stirring blades are fixed in the box body in an extending mode.
Preferably, the gas distribution subassembly includes intake pipe and arc gas distribution board, the bottom of intake pipe is passed the fixed intercommunication of hollow mixing shaft and is had arc gas distribution board, the top and the air supply pipe intercommunication of intake pipe, the camber center of arc gas distribution board is located the axis of intake pipe, and be located the top of arc gas distribution board, the air cavity has been seted up to the inside of arc gas distribution board, both ends all are equipped with a plurality of first gas distribution holes that communicate with the air cavity to the back spaced apart from the past about arc gas distribution board, a plurality of second gas distribution holes that communicate with the air cavity are seted up to the roof of arc gas distribution board, a plurality of third gas distribution holes that communicate with the air cavity are seted up to the diapire of arc gas distribution board.
Preferably, the second air distribution hole and the third air distribution hole are obliquely arranged towards the air inlet pipe, and the second air distribution hole and the third air distribution hole are arranged in a staggered mode.
Preferably, the pushing member comprises a first bevel gear, a second bevel gear, a rotating shaft, a second bearing seat and a cam, the first bevel gear is fixed on the upper portion of a hollow stirring shaft of the stirring assembly of the PAC dosing tank, the second bearing seat is fixed on the top of the box body, one end of the rotating shaft penetrates through the second bearing seat and is fixed with the second bevel gear, the second bevel gear is meshed with the first bevel gear, and the other end of the rotating shaft is fixed with the cam.
Preferably, the communication port of the second pH adjusting tank and the PAC dosing tank is positioned below, and the communication port of the PAC dosing tank and the PAM dosing tank is positioned above.
Preferably, still include two industry pH meters, the measuring pump, the doser, and control panel, the sense terminal of two industry pH meters extends to in fenton reaction tank and the coagulating sedimentation pond respectively, first pH equalizing basin has a feed liquor pipe, the second pH equalizing basin has two feed liquor pipes, the feed liquor pipe of first pH equalizing basin and second pH equalizing basin all is provided with the measuring pump, PAC adds the medicine pond and PAM adds the medicine pond and all is provided with the doser, industry pH meter and doser all are connected with control panel electricity, control panel is connected with the measuring pump electricity.
Preferably, still include mud level meter and dredge pump, the sense terminal of mud level meter extends to in the coagulating sedimentation pond, and the mud level meter is connected with control panel electricity, and control panel is connected with dredge pump electricity.
The invention also provides a Fenton treatment method, which comprises the following steps: the method comprises the steps of firstly carrying out a pilot plant test, obtaining the optimal dispensing ratio of the wastewater, setting the adding amount of PAC and PAM, adding acid liquor into a first pH adjusting tank, sending the wastewater into the first pH adjusting tank to be mixed with the acid liquor to adjust the pH of the wastewater, enabling the effluent of the first pH adjusting tank to flow through a first pipeline, when the water flow passes through the first pipeline, proportionally adding ferrous solution by a hydrodynamic force adding pump on the first pH adjusting tank according to the inflow rate, enabling the wastewater to enter a ferrous adding tank together with the wastewater, enabling the effluent of the ferrous adding tank to flow through a first pipeline, enabling the effluent of a water flow passing through a second pipeline, enabling the hydrodynamic force proportional adding pump on the ferrous adding tank to proportionally add hydrogen peroxide according to the inflow rate, enabling the effluent of the hydrogen peroxide adding tank and the wastewater to enter a hydrogen peroxide adding tank together, enabling the effluent of the hydrogen peroxide adding tank to enter a Fenton reaction tank to carry out a Fenton reaction, monitoring the pH value of the wastewater in an industrial pH meter of the Fenton reaction tank, regulating the adding amount of a metering pump of the first pH adjusting tank according to regulate the dosage of a metering pump according to the pH, enabling the wastewater after the Fenton reaction tank to enter a PAM, enabling the wastewater to enter a PAM to be treated by a PAM precipitation tank, enabling the PAC to be treated by a PAM precipitation, enabling the wastewater to pass through a PAM precipitation, enabling the PAM precipitation to be treated by a PAM precipitation, and enter a PAM precipitation tank, and depositing tank, and enabling the PAM precipitation to be treated by a PAM precipitation tank, and enabling the PAM precipitation.
The invention has the beneficial effects that:
1. through fenton reaction + coagulating sedimentation, the effluent reaches the standard, adopts hydrodynamic force proportion dosing pump, need not the ferrous solution and the amount of hydrogen peroxide solution that artificial regulation and control was thrown, reduces the cost of labor.
2. The Fenton reaction and the coagulation reaction are combined, and the tanks are uniformly arranged in the box body, so that the structure is compact, the prefabrication and installation are convenient, and the field wet processing is not needed.
3. Through air current disturbance rivers, combine mechanical stirring disturbance rivers, ensure the mixing efficiency of medicament and waste water for mix more evenly thoroughly.
4. Can realize simultaneously the synchronous stirring to three pond through a driving source to the intermittent type up-and-down motion of three gas distribution subassembly is realized in step, combines the air feed of gas distribution subassembly, can reach fine medicament and the mixed processing of waste water.
5. Blow from the left and right sides slant through first gas distribution hole, combine the second gas distribution hole upwards to blow to and the third gas distribution hole blows downwards, from the multi-direction gas distribution in a plurality of positions, make gas blow off more comprehensively, and then make the rivers disturbance more comprehensive, improve the mixed degree of waste water and medicament.
6. The second air distribution holes which are obliquely arranged blow air from the periphery to the center side, and the air flow is concentrated at the air inlet pipe; the third air distribution hole which is obliquely arranged in a combined mode blows air from the center side to the periphery, so that air flow is dispersed from the bottom, and good air flow disturbing water flow effect is formed by combining left and right upward oblique air flow.
7. And the water flow forms baffling from the second pH regulating tank to the PAM dosing tank, so that the mixing of the medicament and the wastewater is further improved.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a partial right view structural schematic diagram of the present invention.
FIG. 3 is a schematic view of the gas distribution assembly and hollow mixing shaft of the present invention in partial cross-section.
Fig. 4 is a schematic arrangement diagram of the first air distribution holes of the present invention.
Fig. 5 is a right side view schematically showing the construction of the cam of the present invention.
The labels in the figures are: 1-box body, 2-hydrodynamic proportion dosing pump, 3-first pH adjusting tank, 4-ferrous dosing tank, 5-hydrogen peroxide dosing tank, 6-Fenton reaction tank, 7-second pH adjusting tank, 8-PAC dosing tank, 9-PAM dosing tank, 10-coagulating sedimentation tank, 11-first pipeline, 12-second pipeline, 13-stirring component, 14-air distribution component, 15-blower, 16-hose, 17-air supply pipe, 18-motor, 19-transmission component, 20-spring, 21-pushing component, 131-first bearing seat, 132-hollow stirring shaft, 133-stirring blade, 141-air inlet pipe, 142-arc air distribution plate, 143-air cavity, 144-first air distribution hole, 145-second air distribution hole, 146-third air distribution hole, 211-first bevel gear, 212-second bevel gear, 213-rotating shaft, 214-second bearing seat, 215-cam, 22-industrial pH meter, 23-pH meter, 24-dosing pump, 25-mud discharge meter panel, and 26-mud discharge meter panel.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Those not described in detail in this specification are within the skill of the art. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 5, the fenton processing apparatus provided in this embodiment includes a box 1, a hydrodynamic proportion dosing pump 2, and a first pH adjusting tank 3, a ferrous dosing tank 4, a hydrogen peroxide dosing tank 5, a fenton reaction tank 6, a second pH adjusting tank 7, a PAC dosing tank 8, a PAM dosing tank 9, and a coagulating sedimentation tank 10 which are disposed inside the box 1, the first pH adjusting tank 3, the ferrous dosing tank 4, and the hydrogen peroxide dosing tank 5 are sequentially disposed on the left side inside the box 1 from front to back, the first pH adjusting tank 3 and the ferrous dosing tank 4 are communicated through a first pipeline 11, the ferrous dosing tank 4 and the hydrogen peroxide dosing tank 5 are communicated through a second pipeline 12, the hydrodynamic proportion dosing pump 2 is disposed on the first pipeline 11 and the second pipeline 12, the Fenton reaction tank 6 is located the right side of hydrogen peroxide solution dosing tank 5, and with hydrogen peroxide solution dosing tank 5 intercommunication, the second pH equalizing basin 7 that has set gradually mutual intercommunication after to in the box 1 on Fenton reaction tank 6 right side in the past, PAC dosing tank 8, and PAM dosing tank 9, second pH equalizing basin 7 and Fenton reaction tank 6 intercommunication, the inside right side of box 1 is provided with coagulating sedimentation tank 10, coagulating sedimentation tank 10 and PAM dosing tank 9 intercommunication, hydrodynamic force proportion dosing pump 2 between first pH equalizing basin 3 and ferrous dosing tank 4 adds ferrous solution for ferrous dosing tank 4, hydrodynamic force proportion dosing pump 2 between ferrous dosing tank 4 and hydrogen peroxide solution dosing tank 5 adds the ferrous solution for hydrogen peroxide solution dosing tank 5. The present embodiment employs a constant source hydrodynamic proportioning dosing pump 2. Through the setting of hydrodynamic force proportion dosing pump 2, hydrodynamic force proportion dosing pump 2 direct mount is on the supply line to rivers are as the power of operation. By utilizing the wind tunnel principle of dynamics, the internal structure is outwards expanded at 12.5 degrees, power is supplied by water pressure, and the liquid medicine is supplied to the host at high speed by pumping pressure of 8bar, so that medicine adding is completed. According to the different pressure produced by feeding and adding medicine, the pressure difference is formed, so that the water can be spirally moved, and the full and uniform mixing can be achieved. And the dosing is not influenced by large and small water flows, so that stable dosing is achieved. The water pressure is used as the working power without electric power. The Fenton reaction and the coagulation reaction are combined, and the pools are uniformly arranged in the box body 1, so that the structure is compact, the prefabrication and installation are convenient, and the field wet processing is not needed. The pH value is adjusted along with the water inlet direction to obtain the best Fenton reaction effect, then the ferrous solution and the hydrogen peroxide are sequentially added, preliminary mixing is carried out in the adding process, and the subsequent Fenton reaction is carried out in the Fenton reaction tank 6, the Fenton reaction tank 6 and the coagulation sedimentation tank 10 are both provided with stirrers, so that the reaction efficiency is improved. The pH value of the reaction in the Fenton reaction tank 6 is 2-4, and the discharge requirement of the coagulating sedimentation is 6-9, so that the pH value of the wastewater after the Fenton reaction needs to be adjusted, and the alkali liquor added in the embodiment is liquid alkali, so that the sludge amount is reduced. Then PAC and PAM are added in sequence, the mixed solution enters a coagulating sedimentation tank 10 for coagulating sedimentation treatment, the effluent reaches the standard through Fenton reaction and coagulating sedimentation, a hydrodynamic proportion dosing pump 2 is adopted, the ferrous solution and the hydrogen peroxide amount which are added do not need to be artificially regulated and controlled, and the labor cost is reduced.
Wherein, the second pH adjusting tank 7, PAC adds medicine pond 8, and PAM adds medicine pond 9 and all is provided with stirring subassembly 13 and gas distribution subassembly 14, the one end of gas distribution subassembly 14 is located the below of stirring subassembly 13, the other end of gas distribution subassembly 14 passes agitating unit and extends to the outside of box 1, the fixed hair-dryer 15 in one side at box 1 top, hair-dryer 15 is connected with air supply pipe 17 through hose 16, air supply pipe 17 extends the outer one end intercommunication of box 1 with each gas distribution subassembly 14, the opposite side at box 1 top is fixed with motor 18, motor 18 drives stirring subassembly 13 of second pH adjusting tank 7 through drive assembly 19 and rotates, stirring subassembly 13 of second pH adjusting tank 7 and PAC add medicine pond 8's stirring subassembly 13 and pass through drive assembly 19 transmission and connect, PAC adds medicine pond 8's stirring subassembly 13 and PAM adds medicine pond 9's stirring subassembly 13 and connects through drive assembly 19 transmission, be connected with spring 20 between air supply pipe 17 and the box 1 roof, the top of box 1 is fixed with impeller 21, impeller 21 is located the below of impeller 17, and is added medicine pond's stirring subassembly 13 drive by PAC 8. In the coagulating sedimentation reaction process, the rapid stirring is for the medicament and the waste water intensive mixing is even, the medium speed stirring is for the stable of medicament flocculation to go on, does not destroy its molecular structure (because the flocculating constituent that preliminary formed is broken up very easily), and the slow speed stirring is for making the flocculating constituent that finally forms can not deposit in this liquid medicine groove promptly, makes whole flocculation mechanism reach best effect. The stirring speed of stirring subassembly 13 of this application is for the slow speed stirring, divides the groove to set up the control that combines stirring intensity through PAC and PAM to reach the effect that makes a half a effort doubly. Mix PAC and waste water, PAM and waste water respectively through stirring subassembly 13, finally unify and get into coagulating sedimentation tank 10 and carry out coagulating sedimentation and handle, the effect is good.
Through the arrangement of the transmission assembly 19, one motor 18 can synchronously drive the three stirring assemblies 13 for stirring operation. And because the stirring assembly 13 is not directly driven by the motor 18 to rotate, the simple installation is provided for the gas distribution assembly 14, so that the gas inlet pipe 141 of the gas distribution assembly 14 can directly penetrate through the stirring assembly 13 without complex arrangement. When stirring subassembly 13 carries out the operation of slowly stirring, hair-dryer 15 is bloied, and the air passes through hose 16 and gets into air supply pipe 17, is three gas distribution subassembly 14 air supplies respectively by air supply pipe 17, is second pH equalizing basin 7, PAC respectively by three gas distribution subassembly 14 and adds medicine pond 8, PAM and adds medicine pond 9 air supply, so, through air current disturbance rivers, combine mechanical stirring disturbance rivers, ensure the mixing efficiency of medicament and waste water for mix more evenly thoroughly. Moreover, when the stirring subassembly 13 of PAC dosing tank 8 stirs the operation, drive impeller 21 operation, combine spring 20's setting, interval promotion air supply pipe 17 up-and-down motion for gas distribution subassembly 14 follows up-and-down motion, not only further disturbance to the waste water of box 1 bottom is handled, changes the gas distribution height moreover, further improves the mixed effect of medicament and waste water. So, can realize simultaneously the synchronous stirring to three pond through a driving source to the intermittent type up-and-down motion of three gas distribution subassembly 14 is realized in step, combines the air feed of gas distribution subassembly 14, can reach fine medicament and the mixed processing of waste water.
The stirring assembly 13 includes a first bearing block 131, a hollow stirring shaft 132, and stirring blades 133, the first bearing block 131 is fixed on the top of the box body 1, the bottom end of the hollow stirring shaft 132 penetrates through the first bearing block 131 and the top wall of the box body 1, and a plurality of stirring blades 133 are fixed inside the box body 1. Air distribution assembly 14 includes intake pipe 141 and arc air distribution plate 142, the fixed intercommunication of hollow stirring shaft 132 is passed to intake pipe 141's bottom, there is arc air distribution plate 142, intake pipe 141's top and air supply pipe 17 intercommunication, arc air distribution plate 142's curvature center is located intake pipe 141's axis, and be located arc air distribution plate 142's top, air cavity 143 has been seted up to arc air distribution plate 142's inside, arc air distribution plate 142's the left and right sides both ends all from the past to the back spaced apart first air distribution hole 144 that is equipped with a plurality of and air cavity 143 intercommunication, a plurality of second air distribution holes 145 that communicate with air cavity 143 are seted up to arc air distribution plate 142's the roof, a plurality of third air distribution holes 146 that communicate with air cavity 143 are seted up to arc air distribution plate 142's diapire. Because the hollow stirring shaft 132 is not directly connected with the motor 18, the air inlet pipe 141 can directly penetrate through the hollow stirring shaft 132, and the installation is convenient. In this embodiment, a sealing member is provided between the air inlet pipe 141 and the hollow stirring shaft 132, and the sealing member is provided to perform a sealing function. Adopt the setting of arc gas distribution plate 142, and the camber center of arc gas distribution plate 142 is located the axis of intake pipe 141 for arc gas distribution plate 142 left and right sides both ends arch up, and the middle part is downwards, sets up like this and makes the gas distribution more comprehensive. The air is blown obliquely upwards from the left side and the right side through the first air distribution holes 144, the air is blown upwards through the second air distribution holes 145 in combination with the downward blowing of the third air distribution holes 146, and the air is distributed in multiple directions from multiple directions, so that the air is blown out more comprehensively, the water flow disturbance is more comprehensive, and the mixing degree of the wastewater and the medicament is improved.
The second air distribution holes 145 and the third air distribution holes 146 are both obliquely arranged towards the air inlet pipe 141, and the second air distribution holes 145 and the third air distribution holes 146 are arranged in a staggered manner. The second air distribution holes 145 arranged obliquely in this way blow air from the outer periphery to the center side, and the air flow is concentrated at the air inlet pipe 141; the third air distribution holes 146 obliquely arranged in combination blow air from the center side to the periphery, so that air flow is dispersed from the bottom, and good air flow disturbing water flow effect is formed in combination with air flow obliquely upwards from left to right.
The pushing member 21 includes a first bevel gear 211, a second bevel gear 212, a rotating shaft 213, a second bearing block 214, and a cam 215, the first bevel gear 211 is fixed on the upper portion of the hollow stirring shaft 132 of the stirring assembly 13 of the PAC dosing tank 8, the second bearing block 214 is fixed on the top of the box body 1, one end of the rotating shaft 213 passes through the second bearing block 214 and is fixed with the second bevel gear 212, the second bevel gear 212 is engaged with the first bevel gear 211, and the other end of the rotating shaft 213 is fixed with the cam 215. When the hollow stirring shaft 132 of the stirring assembly 13 of the PAC dosing tank 8 rotates, drive the first bevel gear 211 to rotate, and then drive the second bevel gear 212 to rotate, make the rotating shaft 213 rotate, drive the cam 215 to rotate, combine the setting of the spring 20, the cam 215 continuously rotates the intermittent type and drives the air supply pipe 17 to move up and down, make the air intake pipe 141 move up and down, drive the arc air distribution plate 142 to move up and down, not only further disturbance treatment to the waste water of the bottom of the box body 1, and change the air distribution height, further improve the mixing effect of medicament and waste water.
Wherein, the communicating port of the second pH adjusting tank 7 and the PAC dosing tank 8 is positioned below, and the communicating port of the PAC dosing tank 8 and the PAM dosing tank 9 is positioned above. So set up for rivers form the baffling from second pH equalizing basin 7 to PAM dosing tank 9, further improve the mixture of medicament and waste water.
Wherein, still include two industry pH meters 22, the measuring pump 23, doser 24, and control panel 25, the sense terminal of two industry pH meters 22 extends to in fenton reaction tank 6 and the coagulating sedimentation tank 10 respectively, first pH equalizing basin 3 has a feed liquor pipe, second pH equalizing basin 7 has two feed liquor pipes, the feed liquor pipe of first pH equalizing basin 3 and second pH equalizing basin 7 all is provided with measuring pump 23, PAC adds medicine pond 8 and PAM and all is provided with doser 24 with medicine pond 9, industry pH meter 22 and doser 24 all are connected with control panel 25 electricity, control panel 25 is connected with measuring pump 23 electricity, this embodiment control panel is fixed in the back side wall of box. The pH values of the Fenton reaction tank 6 and the coagulation sedimentation tank 10 are detected on line through an industrial pH meter 22 and fed back to a control panel 25, and the control panel 25 controls a corresponding metering pump 23 to add chemicals. PAC dosing and PAM dosing were performed separately by dosers 24.
The device also comprises a mud level meter 26 and a mud pump 27, wherein the detection end of the mud level meter 26 extends into the coagulating sedimentation tank 10, the mud level meter 26 is electrically connected with the control panel 25, and the control panel 25 is electrically connected with the mud pump 27. Automatic sludge discharge is realized through the arrangement of the sludge level meter 26 and the sludge discharge pump 27.
The embodiment also provides a fenton processing method, which comprises the following steps: firstly, a small experiment is carried out, the optimal dosage ratio of the wastewater is obtained, the dosage of PAC and PAM is set, acid liquor is put into the first pH adjusting tank 3, the wastewater is sent into the first pH adjusting tank 3 to be mixed with the acid liquor to adjust the pH of the wastewater, the effluent of the first pH adjusting tank 3 flows through the first pipeline 11, when the water flows through the first pipeline 11, ferrous solution is proportionally added by the hydrodynamic proportional dosing pump 2 on the first pH adjusting tank according to the inflow rate, the ferrous solution and the wastewater enter the ferrous dosing tank 4 together, the effluent of the ferrous dosing tank 4 flows through the first pipeline, when the water flows through the second pipeline 12, hydrogen peroxide is proportionally added by the hydrodynamic proportional dosing pump 2 on the first pH adjusting tank according to the inflow rate, the effluent and the wastewater enter the hydrogen peroxide dosing tank 5 together, the effluent of the hydrogen peroxide dosing tank 5 enters the Fenton reaction tank 6 to carry out the Fenton reaction, the industrial pH meter 22 of the Fenton reaction tank 6 monitors the pH value of waste water in the tank on line, the dosage of a metering pump 23 of the first pH adjusting tank 3 is regulated according to the pH value, the waste water after the Fenton reaction enters the second pH adjusting tank 7, alkali liquor is put in the second pH adjusting tank 7, the effluent of the Fenton reaction tank 6 enters the second pH adjusting tank 7 to be mixed with the alkali liquor for regulating the pH value of the waste water, the effluent of the second pH adjusting tank 7 enters the PAC dosing tank 8, PAC is dosed quantitatively through a doser 24, the effluent of the PAC dosing tank 8 enters the PAM dosing tank 9, PAM is dosed quantitatively through the doser 24, the effluent of the PAM dosing tank 9 enters the coagulating sedimentation tank 10 for sedimentation treatment, a mud level is monitored through a mud level meter 26, when the mud level reaches a preset position, automatic mud discharge is performed through a mud discharge pump 27, the upper clear water after the sedimentation treatment is discharged, and the effluent reaches the standard.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A Fenton treatment facility characterized in that:
the device comprises a box body, a hydrodynamic force proportion dosing pump, a first pH adjusting tank, a ferrous iron dosing tank, a hydrogen peroxide dosing tank, a Fenton reaction tank, a second pH adjusting tank, a PAC dosing tank, a PAM dosing tank and a coagulating sedimentation tank, wherein the first pH adjusting tank, the ferrous iron dosing tank, the hydrogen peroxide dosing tank, the Fenton reaction tank, the second pH adjusting tank, the PAC dosing tank, the PAM dosing tank and the coagulating sedimentation tank are arranged in the box body;
a first pH adjusting tank, a ferrous iron dosing tank and a hydrogen peroxide dosing tank are sequentially arranged on the left side of the interior of the box body from front to back;
the first pH adjusting tank is communicated with the ferrous iron dosing tank through a first pipeline, the ferrous iron dosing tank is communicated with the hydrogen peroxide dosing tank through a second pipeline, and hydrodynamic proportion dosing pumps are arranged on the first pipeline and the second pipeline;
the Fenton reaction tank is positioned on the right side of the hydrogen peroxide dosing tank and is communicated with the hydrogen peroxide dosing tank;
a second pH adjusting tank, a PAC dosing tank and a PAM dosing tank which are communicated with each other are sequentially arranged in the box body on the right side of the Fenton reaction tank from front to back, and the second pH adjusting tank is communicated with the Fenton reaction tank;
a coagulating sedimentation tank is arranged on the right side in the box body and is communicated with the PAM dosing tank;
the hydrodynamic force proportion dosing pump between the first pH adjusting tank and the ferrous iron dosing tank is that ferrous iron solution is dosed into the ferrous iron dosing tank, and the hydrodynamic force proportion dosing pump between the ferrous iron dosing tank and the hydrogen peroxide dosing tank is that hydrogen peroxide is dosed into the hydrogen peroxide dosing tank.
2. A fenton treatment apparatus according to claim 1, wherein:
the second pH adjusting tank, the PAC dosing tank and the PAM dosing tank are all provided with a stirring assembly and a gas distribution assembly;
one end of the gas distribution assembly is positioned below the stirring assembly, and the other end of the gas distribution assembly penetrates through the stirring device and extends to the outside of the box body;
a blower is fixed on one side of the top of the box body and is connected with an air supply pipe through a hose, and the air supply pipe is communicated with one end of each air distribution assembly extending out of the box body;
a motor is fixed on the other side of the top of the box body and drives the stirring assembly of the second pH adjusting tank to rotate through a transmission assembly, the stirring assembly of the second pH adjusting tank is in transmission connection with the stirring assembly of the PAC dosing tank through the transmission assembly, and the stirring assembly of the PAC dosing tank is in transmission connection with the stirring assembly of the PAM dosing tank through the transmission assembly;
a spring is connected between the air supply pipe and the top wall of the box body;
and a pushing piece is fixed at the top of the box body, is positioned below the gas supply pipe and is driven by a stirring assembly of the PAC dosing pool.
3. A fenton treatment apparatus according to claim 2, wherein:
the stirring assembly comprises a first bearing block, a hollow stirring shaft and stirring blades;
the first bearing seat is fixed on the top of the box body, the bottom end of the hollow stirring shaft penetrates through the first bearing seat and the top wall of the box body, and a plurality of stirring blades are fixed in the hollow stirring shaft and extend to the box body.
4. A fenton treatment apparatus according to claim 3, wherein:
the gas distribution assembly comprises a gas inlet pipe and an arc-shaped gas distribution plate;
the bottom end of the air inlet pipe penetrates through the hollow stirring shaft and is fixedly communicated with an arc-shaped air distribution plate, and the top end of the air inlet pipe is communicated with the air supply pipe;
the curvature center of the arc-shaped gas distribution plate is positioned on the axis of the gas inlet pipe and above the arc-shaped gas distribution plate;
an air cavity is formed in the arc-shaped air distribution plate;
the left end and the right end of the arc-shaped gas distribution plate are respectively provided with a plurality of first gas distribution holes communicated with the gas cavity at intervals from front to back;
the top wall of the arc-shaped gas distribution plate is provided with a plurality of second gas distribution holes communicated with the gas cavity;
and the bottom wall of the arc-shaped gas distribution plate is provided with a plurality of third gas distribution holes communicated with the gas cavity.
5. A Fenton treatment apparatus according to claim 4, characterised in that:
the second air distribution hole and the third air distribution hole are obliquely arranged towards the air inlet pipe;
the second air distribution hole and the third air distribution hole are arranged in a staggered mode.
6. A fenton treatment apparatus according to claim 2, wherein:
the pushing piece comprises a first bevel gear, a second bevel gear, a rotating shaft, a second bearing seat and a cam;
the first bevel gear is fixed on the upper part of a hollow stirring shaft of a stirring assembly of the PAC dosing tank;
the second bearing block is fixed at the top of the box body, one end of the rotating shaft penetrates through the second bearing block and is fixed with a second bevel gear, and the second bevel gear is meshed with the first bevel gear;
and a cam is fixed at the other end of the rotating shaft.
7. A fenton treatment apparatus according to claim 1, wherein:
the communication port of the second pH adjusting tank and the PAC dosing tank is positioned below the communication port of the PAC dosing tank;
and the communication port of the PAC dosing tank and the PAM dosing tank is positioned above the PAC dosing tank.
8. A fenton treatment apparatus according to claim 1, wherein:
the device also comprises two industrial pH meters, a metering pump, a doser and a control panel;
the detection ends of the two industrial pH meters respectively extend into the Fenton reaction tank and the coagulating sedimentation tank;
the first pH adjusting tank is provided with one liquid inlet pipe, and the second pH adjusting tank is provided with two liquid inlet pipes;
the liquid inlet pipes of the first pH adjusting tank and the second pH adjusting tank are respectively provided with a metering pump;
the PAC dosing tank and the PAM dosing tank are both provided with dosers;
the industrial pH meter and the doser are electrically connected with the control panel, and the control panel is electrically connected with the metering pump.
9. A fenton treatment apparatus according to claim 8, wherein:
the device also comprises a mud level meter and a mud pump;
the detection end of the mud level meter extends into the coagulating sedimentation tank;
the mud level meter is electrically connected with the control panel, and the control panel is electrically connected with the mud pump.
10. A Fenton treatment method is characterized by comprising the following steps:
the method comprises the steps of firstly carrying out a pilot plant test, obtaining the optimal dosage ratio of wastewater, setting the dosage of PAC and PAM, putting acid liquor into a first pH adjusting tank, sending the wastewater into the first pH adjusting tank to be mixed with the acid liquor to carry out pH adjustment of the wastewater, enabling the effluent of the first pH adjusting tank to flow through a first pipeline, when the water flow passes through the first pipeline, proportionally adding ferrous iron into a solution by a hydrodynamic proportion adding pump according to the inflow rate, feeding the ferrous iron solution into a ferrous adding tank together with the wastewater, enabling the effluent of the ferrous adding tank to flow through a first pipeline, when the water flow passes through a second pipeline, proportionally adding the water into the adding pump according to the inflow rate, feeding the water into a hydrogen peroxide adding tank together with the wastewater, enabling the effluent of the hydrogen peroxide adding tank to enter a Fenton reaction tank to carry out a Fenton reaction, monitoring the pH value of the wastewater in an industrial pH meter of the Fenton reaction tank on line by regulating and controlling the pH meter of the first pH adjusting tank according to the pH value, enabling the wastewater after the Fenton reaction to enter a second pH adjusting tank, enabling the effluent of the second pH adjusting pump to enter a PAM precipitation tank, enabling the PAC adjusting tank to be quantitatively monitored by a PAM precipitation tank, and enabling the effluent of the PAM to pass through a PAM precipitation tank, and quantitatively adding water to enter a PAM precipitation tank, and quantitatively monitoring the PAM precipitation position of the wastewater after the PAM precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211674418.1A CN115925180A (en) | 2022-12-26 | 2022-12-26 | Fenton treatment equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211674418.1A CN115925180A (en) | 2022-12-26 | 2022-12-26 | Fenton treatment equipment and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117401830A (en) * | 2023-11-28 | 2024-01-16 | 山东锦旺食品有限公司 | Waste liquid treatment equipment after fruit drink preparation |
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- 2022-12-26 CN CN202211674418.1A patent/CN115925180A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117401830A (en) * | 2023-11-28 | 2024-01-16 | 山东锦旺食品有限公司 | Waste liquid treatment equipment after fruit drink preparation |
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