CN111285550A - Garbage leachate micro-electrolysis membrane method integrated treatment equipment for garbage transfer station - Google Patents
Garbage leachate micro-electrolysis membrane method integrated treatment equipment for garbage transfer station Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/005—Combined electrochemical biological processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to the field of machinery, in particular to integrated treatment equipment for landfill leachate of a refuse transfer station by a micro-electrolysis membrane method. Comprises a wastewater oil separation structure; the oil removal structure is connected with a primary aerobic SBR purification structure, and the SBR purification structure is connected with wastewater to filter press filter pressing through a pneumatic diaphragm pump pipeline. Has the advantages that: the microelectrolysis and membrane method integrated treatment equipment for the garbage percolate of the garbage transfer station integrates the microelectrolysis bioreactor, the zeolite ion exchange bioreactor, the deamination membrane bioreactor, the corresponding aeration fan and the water pump into a whole, has large contact area, high integration level and small occupied area, is convenient to install and maintain, and has good sewage treatment effect and high treatment speed.
Description
Technical Field
The invention relates to the field of machinery, in particular to integrated treatment equipment for landfill leachate of a refuse transfer station by a micro-electrolysis membrane method.
Background
The landfill leachate belongs to high-pollution wastewater which is strictly forbidden to be directly discharged in China. The existing landfill leachate wastewater treatment equipment has single effect and various problems, such as high treatment cost of chemical oxidation deamination and resource waste; the blowing-off method deamination has the defects of low efficiency, long time consumption, large difficulty in ammonia gas collection, easy air pollution and the like; at present, some enterprises adopt combined garbage leachate wastewater treatment equipment, but the equipment has the defects of complex structure, large occupied area, high equipment investment, difficult installation and maintenance and the like, cannot be used for garbage leachate wastewater treatment of small garbage transfer stations, and cannot be popularized and used.
Disclosure of Invention
The purpose of the invention is as follows: the specific purpose of providing a better-effect integrated treatment device for landfill leachate of the refuse transfer station by using the micro-electrolysis membrane method is shown in a plurality of substantial technical effects of a specific implementation part.
In order to achieve the purpose, the invention adopts the following technical scheme:
the integrated treatment equipment for the garbage percolate by the micro-electrolysis membrane method of the garbage transfer station comprises a box body enclosed by a base, a top plate and peripheral side plates in a sealing way, wherein a coagulation inclined tube precipitation bin, a micro-electrolysis biological reaction bin, a zeolite ion exchange biological reaction bin, a deamination membrane biological reaction bin, a clear water bin and an equipment bin are arranged in the box body at intervals through vertical partition plates arranged in a sealing way; the middle part of the coagulation inclined tube precipitation bin is filled with inclined tube filler, a guide cylinder vertically penetrates through the inclined tube filler, a flow distribution disc is arranged at the lower end of the guide cylinder, which extends out of the inclined tube filler, a sludge storage hopper is arranged below the inclined tube filler, an overflow groove is arranged on the wall above the inclined tube filler, and the overflow groove is communicated with the micro-electrolysis biological reaction bin through an overflowing hole on a corresponding partition plate; a water inlet pipe is arranged on one side bin wall of the micro-electrolysis biological reaction bin, the water outlet of the water inlet pipe is close to the base, an aeration device is distributed at the bottom of the micro-electrolysis biological reaction bin, two layers of micro-electrolysis biological reaction balls filled with iron-carbon filler are stacked above the aeration device through grids arranged at intervals, an overflow trough is arranged on the bin wall above the micro-electrolysis biological reaction bin, and the overflow trough is communicated with the zeolite ion exchange biological reaction bin through an overflowing hole on a corresponding partition plate; a water inlet pipe is arranged on the wall of one side of the zeolite ion exchange biological reaction bin, the water outlet of the water inlet pipe is close to the base, an aeration device is distributed at the bottom of the zeolite ion exchange biological reaction bin, two layers of zeolite biological reaction balls filled with modified zeolite filler are stacked above the aeration device through grids arranged at intervals, an overflow groove is arranged on the wall of the upper side of the zeolite ion exchange biological reaction bin, and the overflow groove is communicated with the deamination membrane biological reaction bin through an overflowing hole on a corresponding partition plate; a biomembrane reactor is arranged in the deamination membrane biological reaction bin, a water outlet pipe is connected on the deamination membrane biological reactor, an aeration pipe is arranged below the deamination membrane biological reactor, and the bottom of the deamination membrane biological reaction bin is respectively connected with a sludge discharge pipe; the upper end of one side of the wall of the clear water disinfection bin is provided with a water inlet pipe, the upper part of the clear water disinfection bin is provided with a chlorine dioxide generator for sterilizing and disinfecting waste water, and the bottom of the clear water disinfection bin is provided with an overflow drain pipe which extends vertically and upwards; install aeration fan, self priming pump and electric cabinet in the equipment compartment, aeration fan passes the play tuber pipe that corresponds the baffle through sealed and connects respectively aeration equipment and each aeration pipe, the water inlet of self priming pump and deaminizing membrane bioreactor's play water piping connection, the delivery port of self priming pump and the water piping connection in clear water disinfection storehouse.
The invention further adopts the technical scheme that a sludge suction pipe is transversely arranged at the bottom of a sludge storage hopper in the coagulation inclined pipe settling bin, a sludge return pipe is arranged at the top of the microelectrolysis biological reaction bin, a return pump is arranged in the equipment bin, and the sludge suction pipe and the sludge return pipe are hermetically connected to the inlet and the outlet of the return pump respectively through corresponding partition plates.
The invention further adopts the technical scheme that a backwashing pipe of a backwashing pump is connected to the deamination membrane bioreactor, and the backwashing pipe of the backwashing pump penetrates through a corresponding partition plate in a sealing manner to be connected with the backwashing pump.
The invention further adopts the technical scheme that the deamination membrane bioreactor is also connected with a backflushing pump, the backflushing pump is arranged in the equipment bin, the water inlet of the backflushing pump is connected with the lower part of the clear water bin through a pipeline, and the water outlet of the backflushing pump is connected with the water outlet pipe on the deamination membrane bioreactor.
The invention further adopts the technical scheme that a bin door for maintenance personnel to enter and exit is further arranged on one side bin wall of the equipment bin, a transparent observation window is arranged at the upper part of the bin door, and a shutter is arranged at the lower part of the bin door.
The invention further adopts the technical scheme that the top plate of the box body is respectively provided with an access hole corresponding to the coagulation inclined tube precipitation bin, the micro-electrolysis biological reaction bin, the zeolite ion exchange biological reaction bin, the deamination membrane biological reaction bin and the clear water bin, and the outer bin wall of the reaction bin is provided with a ladder stand.
The invention further adopts the technical scheme that the aeration device consists of a plurality of microporous aeration heads which are arranged vertically and horizontally and a connecting air pipe which is connected with each aeration head, and aeration pipes in the micro-electrolysis biological reaction bin, the zeolite ion exchange biological reaction bin and the deamination membrane biological reaction bin are surrounded by air pipelines with micropores on the surfaces.
The invention further adopts the technical scheme that a circle of defoaming spray pipes are arranged at the top of the micro-electrolysis biological reaction bin, a foam overflow pipe is vertically arranged at the middle part of the micro-electrolysis biological reaction bin close to a side plate at one side of the micro-electrolysis biological reaction bin, a funnel-shaped foam overflow cylinder is fixed at the top of the foam overflow pipe, the bottom of the foam overflow pipe is fixedly penetrated at one side of a base, a sludge discharge pipe is arranged at the bottom of the micro-electrolysis biological reaction bin, and a valve is used for controlling sludge discharge.
The invention further adopts the technical scheme that a circle of defoaming spray pipes are arranged at the top of the zeolite ion exchange biological reaction bin, a foam overflow pipe is vertically arranged at the middle part of the zeolite ion exchange biological reaction bin close to a side plate of the zeolite ion exchange biological reaction bin, a funnel-shaped foam overflow cylinder is fixed at the top of the foam overflow pipe, and the bottom of the foam overflow pipe is fixedly penetrated at one side of the base.
The invention further adopts the technical scheme that the clear water disinfection bin adopts a chlorine dioxide generator for sterilization and disinfection, and the outer discharge pipe is connected with a Parshall discharge weir.
Compared with the prior art, the invention adopting the technical scheme has the following beneficial effects: for sewage with serious pollution, a medicine box is directly adopted for physical and chemical pretreatment, the integrated treatment equipment for the garbage percolate of the garbage transfer station by the microelectrolysis membrane method integrates a coagulation inclined tube precipitator, a microelectrolysis bioreactor, a zeolite ion exchange biological reaction, a deamination membrane bioreactor, a corresponding aeration fan, a filter press and a water pump, has high integration level and small occupied area, is convenient to install and maintain, has good sewage treatment effect, solves the blank of the garbage percolate treatment technology of the current garbage transfer station, and solves the problems in the prior art.
Drawings
To further illustrate the present invention, further description is provided below with reference to the accompanying drawings:
FIG. 1 is a process flow diagram of the integrated treatment equipment for landfill leachate by a microelectrolysis membrane method of the refuse transfer station of the invention;
FIG. 2 is a plan view of the integrated treatment equipment for landfill leachate of the refuse transfer station by the microelectrolysis membrane method of the invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view C-C of FIG. 2;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 2;
wherein: 1, a base; 2, side plates around; 3, a top plate; 4, a water inlet pipe; 5 an aeration device; 6, a grid; 7 micro-electrolysis biological reaction ball; 8, a foam overflow pipe; 9, a foam overflow cylinder; 10 defoaming spray pipes; 11 a sludge return pipe; 12 deamination membrane bioreactor; 13 coagulating and precipitating inclined tube filler; 14 connecting pipes; 15, a guide shell; 16 an aerator pipe; 17, a mud storage hopper; 18 sludge suction pipes; 19 an aeration fan; 20 an overflow trough; 21 a sludge discharge pipe; 22 a water inlet pipe; 23, discharging a water pipe; 24 water pump backwash pipes; 25 an overflow drain pipe; 26. pipe distribution; 27 a reflux pump; a 28 self-priming pump; 29 a backwash pump; 30, an electric cabinet; 31 an overflow hole; 32 an aerator pipe; 100 equipment boxes; 101 coagulating inclined tube settling bin; a micro-electrolysis biological reaction bin 102; 112 zeolite ion exchange biological reaction cabin; 103 deamination membrane biological reaction bin; 104 a clear water disinfection bin; 105 an equipment bin; 106 climbing a ladder; 107 maintenance ports; 108 bin gates; 109 a transparent viewing window; 200 partition boards.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-5, the integrated treatment equipment for landfill leachate by using a microelectrolysis membrane method comprises an equipment box 100 which is formed by welding and enclosing a base 1, peripheral side plates 2 and a top plate 3, and an inner cavity of the equipment box 100 is divided into six chambers including a coagulation inclined tube precipitation chamber 101, a microelectrolysis biological reaction chamber 102, a zeolite ion exchange biological reaction chamber 112, a deamination membrane biological reaction chamber 103, a clear water disinfection chamber 104 and an equipment chamber 105 by a partition plate 200 which is vertically sealed and fixed in the equipment box 100. Wherein, a water inlet pipe 4 is arranged on one side of the micro-electrolysis biological reaction chamber 102, the water inlet end of the water inlet pipe 4 is close to the top plate 3, and the water outlet thereof is close to the base 1. The bottom of the micro-electrolysis biological reaction bin 102 is provided with an aeration device 5, the aeration device 5 consists of a plurality of aeration heads arranged at intervals and gas transmission pipes connected with the aeration heads, and the aeration device 5 is connected with an aeration fan 19. Grid 6 piles up through the interval setting in aeration equipment 5's top has two-layer built-in iron carbon filler's little electrolysis reaction ball 7, vertically installs a foam overflow pipe 8 in the middle part of little electrolysis biological reaction storehouse 102, the lower extreme of this foam overflow pipe 8 penetrates base 1 and is equipped with the export in one side of base 1, the top of this foam overflow pipe 8 is close to roof 3 and is fixed with the foam overflow section of thick bamboo 9 of a infundibulate, still enclose at the top of little electrolysis biological reaction storehouse 102 and be equipped with round defoaming shower 10. An inclined tube filler 13 is filled in the middle of the coagulation inclined tube sedimentation bin 101, a sludge storage hopper 17 is arranged below the inclined tube filler 13, an overflow trough 20 is arranged on the wall of the bin above the inclined tube filler 13, the overflow trough 20 is communicated with the micro-electrolysis biological reaction bin through a through hole 31 on a corresponding partition plate 200, a guide cylinder 15 vertically penetrates through the inclined tube filler 13, a flow distribution disc is arranged at the lower end of the guide cylinder 15, which extends out of the inclined tube filler 13, and a circle of aeration pipes 16 are arranged between the inclined tube filler 13 and the sludge storage hopper 17. Install membrane reactor 12 in deammoniation membrane bioreaction storehouse 103, be connected with outlet pipe 23 and pneumatic backwash pipe 24 respectively on this membrane reactor 12, this outlet pipe 23 is connected with self priming pump 28 and backwash pump 29 respectively through the connecting tube, is equipped with aeration pipe 32 in the below of deammoniation membrane bioreactor 12, still is connected with mud pipe 21 respectively in the bottom of this deammoniation membrane bioreaction storehouse 103 and coagulation pipe chute sediment storehouse 101. The upper end of one side of the clean water disinfection bin 104 is provided with a water inlet pipe, and the bottom of the clean water disinfection bin 104 is provided with an overflow drain pipe 25 which extends vertically and upwards. Foretell aeration fan 19, self priming pump 28, backwash pump 29 are all installed in equipment compartment 105, simultaneously, still install backwash pump 27 and electric cabinet 30 in this equipment compartment 105, and deaminizing membrane bioreactor's outlet pipe 23 is all connected to the water inlet of self priming pump 28 and the delivery port of backwash pump 29, and the inlet tube of clear water disinfection storehouse 104 upper end is connected to the delivery port of self priming pump 28, and the water inlet of backwash pump 29 passes through the lower part of pipe connection at clear water disinfection storehouse 104. The inlet and the outlet of the reflux pump 27 are respectively connected with a sludge suction pipe 18 and a sludge reflux pipe 11, the sludge suction pipe 18 is connected with the bottom of the sludge storage hopper 17 at the lower part of the inclined pipe sedimentation bin 101, and the sludge suction pipe 11 is arranged at the top of the micro-electrolysis biological reaction bin 102. The above-mentioned delivery ducts, which are connected for the delivery of gas, water and sludge, pass hermetically through the corresponding partition 200.
In order to facilitate installation and maintenance of equipment by workers, a top plate 3 of the equipment box 100 is provided with a maintenance opening 107 corresponding to the inclined tube precipitation bin 101, the micro-electrolysis reaction bin 102, the zeolite ion exchange biological reaction bin 112, the deamination membrane biological reaction bin 103, the clear water disinfection bin 104 and the equipment bin 105 respectively, a ladder 106 is fixedly installed outside one side bin wall of the equipment box 100, meanwhile, one side bin wall of the equipment bin 105 is provided with a bin gate 108, the upper part of the bin gate 108 is provided with a transparent observation window 109, the lower part of the bin gate is provided with a shutter 110, and the upper part of the equipment bin 105 is provided with an exhaust fan 111, so that heat dissipation of each equipment is facilitated.
The clear water disinfection cabin adopts a chlorine dioxide generator for sterilization and disinfection, and the outer discharge pipe is connected with a Parshall discharge weir.
It should be noted that the plurality of schemes provided in this patent include their own basic schemes, which are independent of each other and are not restricted to each other, but they may be combined with each other without conflict, so as to achieve a plurality of effects.
The micro-electrolysis mechanism is as follows:
the micro-electrolysis system is provided with a porous reticular polymer filler as a microbial carrier, and ferrous iron as a flocculating agent is adopted, wherein the ferrous iron is an active metal, and the micro-electrolysis system can easily generate physical, chemical and electrochemical comprehensive effects caused by metal corrosion electrochemistry in the oxidation-reduction process, so that micro-electrolysis is formed. In recent years, there are more and more research reports on the treatment of rare earth wastewater, metallurgical wastewater, coking wastewater, pharmaceutical wastewater, electroplating wastewater, petroleum, chemical wastewater, gas washing wastewater, printing and dyeing wastewater, pesticide wastewater and the like by using a micro-electrolysis method. The organic industrial waste water has the characteristics of various pollutants, high toxicity, high C O D value and strong acid-base change, most of the organic industrial waste water is difficult to biodegrade pollutants, and the organic industrial waste water has great harm to the ecological environment and human health. If a biochemical method or other single treatment technologies are adopted to treat the wastewater, the method is not economical and cannot achieve good treatment effect. The micro-electrolysis process formed by the micro-electrolysis filler and the biochemical treatment process are combined, so that the method has obvious advantages in the aspects of improving the biodegradability of the wastewater, improving the quality of the wastewater, lightening the subsequent treatment load and improving the treatment effect. The treatment of industrial wastewater by the micro-electrolysis method is widely regarded as having the advantages of treating waste by waste, good effect, investment saving, wide application range, low operation cost and the like. The micro-electrolysis mechanism is as follows: the basic principle of the iron-carbon microelectrolysis reaction is that iron and carbon form a primary battery in an electrolyte solution, iron is an anode, carbon is a cathode, the anode is oxidized when losing electrons in the battery reaction, the cathode obtains electrons and is reduced, the iron-carbon microelectrolysis is immersed in an electric battery reaction to form a corrosion battery based on the fact that the battery and cathode materials in electrochemistry are contacted together, and the metal anode electrode reacts as follows: anode (F e): fe +2E → Fe2+ E0 (Fe 2 +/Fe) = -0.44V cathode (C): under the acidic condition, 2H + +2E → 2 [ H ] → + H2E 0 (H +/H2) = O.00V has dissolved oxygen, and the reaction is shown as follows under the acidic condition: 02+4H + +4E → 2H 20E 0 (O2) = 1.23V in the presence of dissolved oxygen under alkaline conditions: o2+2H2O +4E → 4OH-E0 (O2/OH-) =0.40V is seen from cathode reaction, under the acidic oxygenation condition, the potential difference between the two is large, the corrosion reaction is fastest, which shows that the effect of treating the industrial organic wastewater under the reducing aeration condition of the iron is better than the treatment effect under the non-aeration condition, in addition, a large amount of H is consumed by the cathode reaction, and the pH value of the solution is increased. The nascent state H obtained in the redox electrode reaction of hydrogen has strong activity and can be reduced with NO 2-N, NO 3-N in waste water. The nascent hydrogen generated in the electrochemical reaction has larger activity, can destroy the chromophoric structure of chromophoric substances, break chromophoric groups and chromophoric groups of certain organic matters in the wastewater, decompose macromolecules into micromolecules, achieve the aim of decoloring, and simultaneously change the composition of the wastewater to the direction easy for biochemistry. Reduction of iron is an active metal and in wastewater under acidic or slightly acidic conditions, the following reactions occur: fe +2H + → Fe2+ + H2 in the presence of an oxidant in the water, Fe2+ can be further oxidized to Fe3+, which has the reaction formula: fe2+ -e → Fe3+ is shown in the formula, so that some macromolecular chromogenic organic substances can be degraded into colorless or light low molecular substances under the acidic condition, the decolorization effect is realized, meanwhile, the biodegradability of the wastewater is improved, and the condition is created for the subsequent biochemical treatment. Coagulation of iron ions Fe2+ from the anode under aerobic and alkaline conditions will form Fe (oh)2 and Fe (oh)3, which occur as follows: fe (OH)2 generated by Fe2+ + 2OH → Fe (OH)24 Fe2+ +8OH + O2+2H2O → 4Fe (OH)3 is a high-efficiency flocculating agent and has good decoloring and adsorbing effects. The generated Fe (OH)3 is also a high-efficiency colloid flocculant, has stronger adsorption capacity than Fe (OH)3 obtained by a general medicament hydrolysis method, and can strongly adsorb suspended substances, partial colored substances and insoluble substances generated by micro-electrolysis in wastewater. Through the comprehensive action of the above reactions, the following effects are finally achieved. (1) When the pH, Fe/C (mass ratio) and reaction time are properly controlled, the following reactions can be achieved: NO 2- +4H + +3e → 1/2N2+2H2O NO 3- +6H + +5e → 1/2N2+3H2O (2) when pH, Fe/C and reaction time are not properly controlled, the following reactions proceed: NO 2- +8H + +6e → NH4 + +2H2O NO 3- +10H + +8e → NH4 + +3H2O from the above formula, it is known that micro-electrolysis has very excellent effect on the treatment of wastewater with high difficulty.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is to be limited to the embodiments described above.
Claims (10)
1. The integrated treatment equipment for the garbage percolate in the garbage transfer station by using the micro-electrolysis membrane method is characterized by comprising a box body which is sealed and enclosed by a base, a top plate and peripheral side plates, wherein a coagulation inclined tube precipitation bin, a micro-electrolysis biological reaction bin, a zeolite ion exchange biological reaction bin, a deamination membrane biological reaction bin, a clear water bin and an equipment bin are arranged in the box body at intervals through a vertical partition plate which is arranged in a sealing way; the middle part of the coagulation inclined tube precipitation bin is filled with inclined tube filler, a guide cylinder vertically penetrates through the inclined tube filler, a flow distribution disc is arranged at the lower end of the guide cylinder, which extends out of the inclined tube filler, a sludge storage hopper is arranged below the inclined tube filler, an overflow groove is arranged on the wall above the inclined tube filler, and the overflow groove is communicated with the micro-electrolysis biological reaction bin through an overflowing hole on a corresponding partition plate; a water inlet pipe is arranged on one side bin wall of the micro-electrolysis biological reaction bin, the water outlet of the water inlet pipe is close to the base, an aeration device is distributed at the bottom of the micro-electrolysis biological reaction bin, two layers of micro-electrolysis biological reaction balls filled with iron-carbon filler are stacked above the aeration device through grids arranged at intervals, an overflow trough is arranged on the bin wall above the micro-electrolysis biological reaction bin, and the overflow trough is communicated with the zeolite ion exchange biological reaction bin through an overflowing hole on a corresponding partition plate; a water inlet pipe is arranged on the wall of one side of the zeolite ion exchange biological reaction bin, the water outlet of the water inlet pipe is close to the base, an aeration device is distributed at the bottom of the zeolite ion exchange biological reaction bin, two layers of zeolite biological reaction balls filled with modified zeolite filler are stacked above the aeration device through grids arranged at intervals, an overflow groove is arranged on the wall of the upper side of the zeolite ion exchange biological reaction bin, and the overflow groove is communicated with the deamination membrane biological reaction bin through an overflowing hole on a corresponding partition plate; a biomembrane reactor is arranged in the deamination membrane biological reaction bin, a water outlet pipe is connected on the deamination membrane biological reactor, an aeration pipe is arranged below the deamination membrane biological reactor, and the bottom of the deamination membrane biological reaction bin is respectively connected with a sludge discharge pipe; the upper end of one side of the wall of the clear water disinfection bin is provided with a water inlet pipe, the upper part of the clear water disinfection bin is provided with a chlorine dioxide generator for sterilizing and disinfecting waste water, and the bottom of the clear water disinfection bin is provided with an overflow drain pipe which extends vertically and upwards; install aeration fan, self priming pump and electric cabinet in the equipment compartment, aeration fan passes the play tuber pipe that corresponds the baffle through sealed and connects respectively aeration equipment and each aeration pipe, the water inlet of self priming pump and deaminizing membrane bioreactor's play water piping connection, the delivery port of self priming pump and the water piping connection in clear water disinfection storehouse.
2. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the refuse transfer station as claimed in claim 1, wherein a sludge suction pipe is transversely arranged at the bottom of a sludge storage hopper in the coagulation inclined pipe settling bin, a sludge return pipe is arranged at the top of the microelectrolysis biological reaction bin, a return pump is installed in the equipment bin, and the sludge suction pipe and the sludge return pipe are hermetically connected to the inlet and the outlet of the return pump respectively through corresponding partition plates.
3. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the refuse transfer station as claimed in claim 1, wherein the deamination membrane bioreactor is further connected with a backwashing pipe of a backwashing pump, and the backwashing pipe of the backwashing pump penetrates through a corresponding partition plate in a sealing manner to be connected with the backwashing pump.
4. The integrated treatment equipment for the garbage percolate micro-electrolysis membrane method of the garbage transfer station according to claim 1, wherein the deamination membrane bioreactor is further connected with a backflushing pump, the backflushing pump is installed in an equipment bin, a water inlet of the backflushing pump is connected to the lower part of a clear water bin through a pipeline, and a water outlet of the backflushing pump is connected with a water outlet pipe on the deamination membrane bioreactor.
5. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the refuse transfer station as claimed in claim 1, wherein a bin door for maintenance personnel to enter and exit is further arranged on one side bin wall of the equipment bin, a transparent observation window is arranged at the upper part of the bin door, and a shutter is arranged at the lower part of the bin door.
6. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the refuse transfer station as claimed in claim 1, wherein the top plate of the box body is provided with access holes corresponding to the coagulation inclined tube sedimentation bin, the microelectrolysis biological reaction bin, the zeolite ion exchange biological reaction bin, the deamination membrane biological reaction bin and the clear water bin respectively, and the outer bin wall of the reaction bin is provided with a ladder.
7. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the garbage transfer station as claimed in claim 1, wherein the aeration device consists of a plurality of microporous aeration heads arranged in a longitudinal and transverse mode and connecting air pipes connected with the aeration heads, and the aeration pipes in the microelectrolysis biological reaction bin, the zeolite ion exchange biological reaction bin and the deamination membrane biological reaction bin are surrounded by air pipelines with micropores formed in the surfaces.
8. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method of the refuse transfer station as claimed in claim 1, wherein a circle of defoaming spray pipes are arranged at the top of the microelectrolysis biological reaction bin, a foam overflow pipe is vertically arranged at the middle part of the microelectrolysis biological reaction bin close to a side plate of one side of the microelectrolysis biological reaction bin, a funnel-shaped foam overflow cylinder is fixed at the top of the foam overflow pipe, the bottom of the foam overflow pipe is fixedly penetrated at one side of a base, a sludge discharge pipe is arranged at the bottom of the microelectrolysis biological reaction bin, and a valve is used for controlling sludge discharge.
9. The integrated treatment equipment for landfill leachate micro-electrolysis membrane process of the refuse transfer station as claimed in claim 1, wherein a circle of defoaming shower pipe is arranged at the top of the zeolite ion exchange biological reaction bin, a foam overflow pipe is vertically arranged at the middle part of the zeolite ion exchange biological reaction bin near one side plate thereof, a funnel-shaped foam overflow cylinder is fixed at the top of the foam overflow pipe, and the bottom of the foam overflow pipe is fixedly penetrated at one side of the base.
10. The integrated treatment equipment for landfill leachate by the microelectrolysis membrane method in the refuse transfer station as claimed in claim 1, wherein the clear water disinfection bin adopts a chlorine dioxide generator for sterilization and disinfection, and an external discharge pipe is connected with a Parshall discharge weir.
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