CN104671592B - Waste gas and PO wastewater comprehensive treatment system - Google Patents
Waste gas and PO wastewater comprehensive treatment system Download PDFInfo
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- CN104671592B CN104671592B CN201510039887.XA CN201510039887A CN104671592B CN 104671592 B CN104671592 B CN 104671592B CN 201510039887 A CN201510039887 A CN 201510039887A CN 104671592 B CN104671592 B CN 104671592B
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Abstract
A kind of waste gas and PO wastewater comprehensive treatment system, including wastewater equalization pond, waste gas waste water mixed processing pond, exhaust gas denitration tank, wastewater electrolytic pond, aerobic contact oxidation pond, second pond and sand filter；Waste gas waste water mixed processing pond includes boiler waste gas aeration zone, mix and blend district and settling zone, is provided with aeration plate bottom boiler waste gas aeration zone, and aeration plate is by air inlet pipe, blower fan connection boiler；Exhaust gas denitration tank is upwards followed successively by denitration region, demister, activated carbon adsorption layer and exhaust fan from tank base；Wastewater electrolytic pond is that left and right two cell structure, the respectively bottom of cathode chamber and anode chamber, cathode chamber and anode chamber connect, and middle and upper part is separated by dividing plate, and cathode chamber and anode chamber are respectively equipped with positive and negative two battery lead plates；Aerobic contact oxidation pond is provided with water inlet pipe, and water inlet pipe bottom is provided with water distribution pyrometric cone, and water distribution pyrometric cone bottom is provided with aeration regulator control system, and aeration regulator control system includes aeration plate, aerator and dissolved oxygen sensing regulation device.
Description
Technical field
The present invention relates to technical field of environment pollution control, especially a kind of waste gas and PO waste water integrated treatment system
System.
Background technology
Expoxy propane (PO) is very important base stock in organic chemical industry's industry, the production method root of PO
It is divided into chlorohydrination, conjugated oxidation, peroxide passivation according to the difference of oxidant used, crosses acid system and other oxidizing process,
Wherein the production capacity of chlorohydrination accounts for more than half of world's total capacity, and it is the most frequently used that this Ye Shi China produces PO
Method.Chlorohydrination PO production technology have technical maturity, flow process is short, production safety, product selectivity are good,
Small investment, to purity requirement not advantages of higher, but the process that application chlorohydrination produces PO can produce substantial amounts of useless
Water, the PO often producing 1t produces waste water 50-80t, and PO waste water has pH value high (10-12), salinity
High (2%-4%), COD high (1500-2500mg/L), CaCl2The features such as concentration high (15000mg/L),
And containing the most chloride organic compound in waste water, mainly have dichloropropane, nemamort etc., it is more difficult to
Process.The processing method of PO waste water mainly has biochemical treatment process and materialization treatment process at present, and its processing equipment is tied
Structure is complicated, and therefore, the rationalization process of PO waste water and recycling are the most domestic and international PO industry developments
Middle problem demanding prompt solution.
Meanwhile, the production of PO can use boiler, in the waste gas of these boiler emissions containing substantial amounts of dust,
Nitrogen oxides and SO2, the process equipment that this type of air pollution control uses at present is mostly just for Single Pollution thing
Process, and dust in waste gas, nitrogen oxides, sulfur dioxide exist, if these the most simultaneously
Combination of facilities can cause waste gas treatment equipment structure complexity, complex operation, processing cost to increase together.
Summary of the invention
The technical problem to be solved in the present invention is: overcome prior art device structure complexity, complex operation, place
Manage relatively costly problem, it is provided that a kind of waste gas and PO wastewater comprehensive treatment system, the treatment of wastes with processes of wastes against one another, can be effective
Process rich in dust, nitrogen oxides, the complex waste gas of sulfur dioxide and PO waste water.
The technical solution adopted for the present invention to solve the technical problems is: a kind of waste gas and PO waste water integrated treatment
System, including wastewater equalization pond, waste gas waste water mixed processing pond, exhaust gas denitration tank, wastewater electrolytic pond, good
Oxygen contact-oxidation pool, second pond and sand filter.
Described wastewater equalization pond includes water inlet pipe and outlet pipe, for regulating water quality and the water yield of PO waste water.
Described waste gas waste water mixed processing pond includes boiler waste gas aeration zone, mix and blend district and settling zone；
Being provided with aeration plate bottom boiler waste gas aeration zone, described aeration plate is connected by air inlet pipe waste gas waste water
Blower fan outside mixed processing pond, blower and pipeline connection boiler；Described aeration plate be arranged over water distribution
Arm, described water distribution branch pipe connects water inlet pipe, and water inlet pipe connects the outlet pipe of wastewater equalization pond；Described mixed
Closing stirring area and be provided with agitating device and medicinal liquid add-on system, the medicinal liquid that described medicinal liquid add-on system adds is inorganic
Flocculant poly aluminum chloride (PAC), bodied ferric sulfate (PFS) and organic flocculant polyacrylamide (PAM)
Medicinal liquid, its concentration is determined by experiment；It is provided with baffle plate, this baffle plate and the inwall shape of sedimentation tank in described settling zone
Becoming the waste water runner entering settling zone as waste water, the exit of settling zone is provided with three phase separator, settling zone
Outlet top be provided with overfalling weir, the tapered structure of settling zone bottom design, it is heavy to be provided with bottom settling zone
Shallow lake thing drain valve；Described waste gas waste water mixed processing pond is provided with upper cover, upper cover design coning structure,
Conical structure top is provided with exhaust gas centralized trachea, the air inlet pipe of described exhaust gas centralized trachea connection exhaust gas denitration tank.
Described exhaust gas denitration tank is upwards followed successively by denitration region, demister, activated carbon adsorption layer from tank base
And exhaust fan.
Described denitration region is provided with exhaust gas denitration assembly, and described exhaust gas denitration assembly includes being positioned at exhaust gas denitration
The backflow of the denitration liquid spray equipment on assembly top, denitration liquid and adding set and be positioned at exhaust gas denitration assembly bottom
Denitration liquid bath.Described denitration liquid spray equipment is helical form spray equipment；The water ejected presents vaporific,
And mixing together between water smoke, do not stay dead angle, be conducive to the contact area expanding waste gas with solution, improve and inhale
Yield and assimilation effect；Described denitration liquid backflow and adding set include denitration flow container and agitating device, de-
Nitre liquid adding set connects denitration liquid circulating pump by pipeline with valve；Described exhaust gas denitration assembly uses
Denitration liquid is ferrous chelating agen and the mixture of iron powder, the matched proportion density of denitration liquid according to the exhausted air quantity processed and
Exhaust gas concentration determines；Denitration liquid trench bottom is designed to pyramidal structure, and is provided with sediment discharge pipe and sinks
Shallow lake thing drain valve；Denitration region middle and lower part is additionally provided with air inlet pipe and gas distribution pipe.
Described denitration region top is provided with demister, and demister is to be collected by the big drop in gas, and
Being allowed to return, reduce the moisture in gas, its operation principle is that gas enters demister, through a series of curved
Road, discharges from top, and water droplet is due to its quality and the effect of kinetic energy, through racetrack portion, straight line
Fall, collide the surface of demister, and rebounding under action of gravity；Further preferred equipment, except mist
Device is deflection plate demister or overflowing board demister.
Described demister top is provided with activated carbon adsorption layer, arranges activated carbon in described activated carbon adsorption layer,
Activated carbon requires have the advantages such as hole flourishing, specific surface area is big, adsorption rate is fast, friction resistant, resistance to flushing,
Such as the operation through the long period, find that activated carbon becomes sticky, when gas prompt drop is low, just need to change activated carbon in time.
Concrete, in the middle of described denitration tank be two ends cylindrical, upper and lower be conical tank body, described tank body
On offer observation port and maintenance replacement port, tank body volume size can according to pending gas flow number depending on,
Use vertical vertical placement.
Clean gas for ease of having processed is discharged, and installs at the conical tank body of described denitration tank topmost
There is exhaust fan.
Described wastewater electrolytic pond is provided with water inlet pipe and outlet pipe, water inlet pipe connection waste gas waste water mixed processing pond
Outlet pipe；Described wastewater electrolytic pond is left and right two cell structure, and respectively cathode chamber and anode chamber, described
Cathode chamber connects with the bottom of anode chamber, and middle and upper part is separated by dividing plate, and cathode chamber and anode chamber are just respectively equipped with
Negative two battery lead plates, positive and negative two battery lead plates connect the upper of outside positive-negative power, cathode chamber and anode chamber respectively
Portion is conical structure, and the top of conical structure is designed with discharge；Further with ruthenium-iridium-tantalum electrode or
Ruthenium-iridium-tantalum tin electrode or iridium tantalum Ti electrode or iridium tantalum titanium tin electrode are positive electrode, and Ti electrode is negative material；
The exit in described wastewater electrolytic pond is provided with three phase separator, and outlet top is provided with overfalling weir, and overfalling weir is even
Connected water outlet pipe, the bottom in exit is designed to pyramidal structure, is provided with sediment discharge bottom pyramidal structure
Valve；The water inlet pipe in the outlet pipe connection connection aerobic contact oxidation pond in described wastewater electrolytic pond.
In described aerobic contact oxidation pond, middle and lower part is provided with water inlet pipe, and described water inlet pipe bottom is provided with water distribution three
Pyramid；Described water distribution pyrometric cone bottom is provided with aeration regulator control system, described aeration regulator control system include aeration plate,
Aerator and dissolved oxygen sensing regulation device；Further, described aeration plate is be evenly arranged with micropore micro-
Cellular type aeration plate.Described aeration plate connects aerator by aeration tube, and aerator is arranged on aerobic contact oxidation
Outside pond, the top in aerobic contact oxidation pond, waste water underwater arrange dissolved oxygen sensing regulation device, described molten
Solve oxygenation measurement regulation device according to oxygen capacity regulation and control aerator work；Described water inlet pipe top is built-in with filler；
The exit in described aerobic contact oxidation pond is laid with downflow weir.
The outlet pipe in described aerobic contact oxidation pond connects water inlet pipe and the water distributor of second pond, bottom second pond
Being provided with sludge recirculation system, a part of sludge reflux to aerobic contact oxidation pond, a part is as excess sludge.
Water after sedimentation in secondary sedimentation tank processes enters sand filter through downflow weir, enters clear water reserviors reuse after filtration.
A kind of above-mentioned waste gas and PO wastewater comprehensive treatment system is used to carry out the method that waste gas and waste water process, tool
Have the following steps:
1. PO waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
2. waste water enters the boiler waste gas aeration zone in waste gas waste water mixed processing pond by water inlet pipe, is positioned at waste gas
Aeration plate below the water inlet pipe of waste water mixed processing pond produces a large amount of tiny bubbles makes waste water abundant with boiler waste gas
Contact, the SO in waste gas2And CO2With the Ca (OH) in waste water2React production precipitate, simultaneously in waste gas
The material such as dust be absorbed in waste water, then waste water enters after mix and blend district stirs with flocculant and mix
Flowing into settling zone, due to the effect of three phase separator, precipitate sinks to waste gas waste water under gravity
The pyramidal structure of bottom, mixed processing pond, is discharged by the sediment discharge valve bottom pyramidal structure.
3. due to the effect of three phase separator in waste gas waste water mixed processing pond, after waste gas escapes from PO waste water
The air inlet pipe of exhaust gas denitration tank, gas distribution pipe is entered by the exhaust gas centralized trachea on top, waste gas waste water mixed processing pond
And denitration region, the denitration liquid that waste gas sprays with denitration liquid spray equipment contacts, and the nitrogen oxides in gas is with sub-
Iron chelating agent and iron powder generation chemical reaction, reaction product flows in bottom denitration liquid bath with denitration liquid, heavy
Shallow lake thing is discharged valve and emits；Gas is here blocked subsequently into demister, the drop in gas
Come；Then gas enters activated carbon adsorption layer, and the material being mingled with in gas and drop are intercepted here to be inhaled
Attached getting off, so far waste gas is processed into the gas of cleaning, it is achieved qualified discharge.
4. the waste water after the three phase separator separating treatment in waste gas waste water mixed processing pond passes through overfalling weir, water outlet
The water inlet pipe in pipe connection wastewater electrolytic pond.
5. waste water enters wastewater electrolytic pond by water inlet pipe, and PO waste water salinity is high, and good conductivity, in waste water
The oxidized decomposition of pollutant, the hydrogen that in electrolytic process, negative pole produces is through collecting, separate dried sale；
The chlorine that positive pole produces is back in the production course of reaction of PO；Waste water after electrolysis processes is connected by outlet pipe
Have friendly relations the water inlet pipe of oxygen contact-oxidation pool.
6. waste water enters the middle and lower part in aerobic contact oxidation pond by water inlet pipe, under the effect of water distribution pyrometric cone
Water distribution uniformity, described aeration plate is the pore type aeration plate being evenly arranged with micropore, produces substantial amounts of micro-gas
Bubble, described dissolved oxygen sensing regulation device is according to oxygen capacity regulation and control aerator work, it is ensured that aerobic contact oxidation
Dissolved oxygen in water is more than 2mg/L, and the waste water after process is flowed out by downflow weir and outlet pipe.
7. the outlet pipe in aerobic contact oxidation pond connects water inlet pipe and water distributor, the precipitation of second pond of second pond
The a part of sludge reflux of mud is to aerobic contact oxidation pond, and a part is as excess sludge.
8. the water after sedimentation in secondary sedimentation tank processes enters sand filter through downflow weir, enters clear water reserviors reuse after filtration.
9. waste gas waste water mixed processing pond, exhaust gas denitration tank and the precipitate of wastewater electrolytic pond generation and second pond
Transport outward after the excess sludge dehydration produced.
Waste gas and the PO wastewater comprehensive treatment system of the present invention utilize waste water to wash boiler waste gas, reach
Dedusting, the purpose of desulfurization, utilize the SO in waste gas simultaneously2And CO2Composition removes the calcium ion in waste water, real
The purpose of the existing treatment of wastes with processes of wastes against one another, and by further processing, make waste gas qualified discharge, waste water recycling.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation in embodiment of the present invention waste gas waste water mixed processing pond.
In Fig. 1: 1. waste gas waste water mixed processing pond, 1-1. boiler waste gas aeration zone, 1-2. mix and blend
District, 1-3. settling zone, 1-4. aeration plate, 1-5. blower fan, 1-6. water distribution branch pipe, 1-7. water inlet pipe, 1-8.
Agitating device, 1-9. medicinal liquid add-on system, 1-10. baffle plate, 1-11. waste gas waste water mixed processing pond three-phase separate
From device, 1-12. waste gas waste water mixed processing pond overfalling weir, 1-13. sediment discharge valve, 1-14. exhaust gas centralized
Trachea.
Fig. 2 is the structural representation of embodiment of the present invention exhaust gas denitration tank.
In Fig. 2: 2. exhaust gas denitration tank, 2-1. denitration region, 2-2. demister, 2-3. activated carbon adsorption
Layer, 2-4. exhaust fan, 2-5. denitration liquid spray equipment, the backflow of 2-6. denitration liquid and adding set, 2-7.
Denitration liquid bath, 2-8. denitration tank sediment discharge valve, 2-9. air inlet pipe, 2-10. gas distribution pipe.
Fig. 3 (a) is the schematic cross section in embodiment of the present invention wastewater electrolytic pond, and Fig. 3 (b) is the present invention
The vertical section schematic diagram in embodiment wastewater electrolytic pond.
In Fig. 3 (a), Fig. 3 (b): 3. wastewater electrolytic pond, 3-1. electrolyzer water inlet pipe, 3-2. is electrolysed
Pond outlet pipe, 3-3. cathode chamber, 3-4. anode chamber, 3-5. dividing plate, 3-6. positive plate, 3-7. negative plate,
3-8. discharge, 3-9. electrolyzer three phase separator, 3-10. electrolyzer overfalling weir, 3-11 electrolyzer precipitates
Thing drain valve.
Fig. 4 is the structural representation in embodiment of the present invention aerobic contact oxidation pond.
In Fig. 4: 4. aerobic contact oxidation pond, 4-1. aerobic contact oxidation pond water inlet pipe, 4-2. water distribution three
Pyramid, 4-3. aeration regulator control system, 4-4. filler, 4-5. aerobic contact oxidation pond downflow weir.
Fig. 5 is the process chart of the embodiment of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation, and these accompanying drawings are the schematic diagram of simplification,
The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment
A kind of waste gas of the present invention as shown in Fig. 1～Fig. 5 and PO wastewater comprehensive treatment system, including waste water
Regulating reservoir, waste gas waste water mixed processing pond 1, exhaust gas denitration tank 2, wastewater electrolytic pond 3, aerobic contact oxidation
Pond 4, second pond and sand filter.
Described wastewater equalization pond includes water inlet pipe and outlet pipe, for regulating water quality and the water yield of PO waste water.
Described waste gas waste water mixed processing pond 1 include boiler waste gas aeration zone 1-1, mix and blend district 1-2 and
Settling zone 1-3；Aeration plate 1-4, described aeration plate 1-4 it is provided with logical bottom the 1-1 of boiler waste gas aeration zone
Cross air inlet pipe connection and have blower fan 1-5, blower fan 1-5 outside waste gas waste water mixed processing pond by pipeline communication boiler；
Be arranged over the water distribution branch pipe 1-6, described water distribution branch pipe 1-6 of described aeration plate 1-4 connect water inlet pipe
1-7, water inlet pipe 1-7 connect the outlet pipe of wastewater equalization pond；Described mix and blend district 1-2 is provided with agitating device
1-8 and medicinal liquid add-on system 1-9, the medicinal liquid that described medicinal liquid add-on system adds is inorganic flocculating agent polyaluminium
Aluminum (PAC), bodied ferric sulfate (PFS) and organic flocculant polyacrylamide (PAM) medicinal liquid, its concentration
Determined by experiment；Being provided with baffle plate 1-10 in described settling zone 1-3, this baffle plate forms work with the inwall of sedimentation tank
Enter the waste water runner of settling zone for waste water, the exit of settling zone is provided with three phase separator 1-11, settling zone
Outlet top be provided with overfalling weir 1-12, the tapered structure of settling zone bottom design, arrange bottom settling zone
There is sediment discharge valve 1-13；Described waste gas waste water mixed processing pond is provided with upper cover, and upper cover design becomes circular cone
Shape structure, conical structure top is provided with exhaust gas centralized trachea 1-14, and described exhaust gas centralized trachea 1-14 connection is useless
Air inlet pipe 2-9 of QI prostration nitre tank 2.
Described exhaust gas denitration tank 2 is upwards followed successively by denitration region 2-1, demister 2-2, activity from tank base
Charcoal adsorption layer 2-3 and exhaust fan 2-4.
Described denitration region is provided with exhaust gas denitration assembly, and described exhaust gas denitration assembly includes being positioned at exhaust gas denitration
The backflow of the denitration liquid spray equipment 2-5 on assembly top, denitration liquid and adding set 2-6 and be positioned at exhaust gas denitration group
The denitration liquid bath 2-7 of part bottom.Described denitration liquid spray equipment 2-5 is helical form spray equipment；Eject
Water present vaporific, and mixing together between water smoke, do not stay dead angle, be conducive to expanding connecing of waste gas and solution
Contacting surface is amassed, and improves absorbance and assimilation effect.Described denitration liquid backflow and adding set 2-6 include denitration
Flow container and agitating device, denitration liquid adding set connects denitration liquid circulating pump by pipeline with valve；Described
The denitration liquid that exhaust gas denitration assembly uses is ferrous chelating agen and the mixture of iron powder, the matched proportion density of denitration liquid
Exhausted air quantity and exhaust gas concentration according to processing determine；Denitration liquid trench bottom is designed to pyramidal structure, and arranges
There are sediment discharge valve 2-8 and sediment discharge pipe；Denitration region middle and lower part is additionally provided with air inlet pipe 2-9 and gas distribution
Pipe 2-10.
It is to be received by the big drop in gas that described denitration region top is provided with demister 2-2, demister 2-2
Collection, and be allowed to return, reducing the moisture in gas, its operation principle is that gas enters demister 2-2, passes through
A series of bends, discharge from top, and water droplet are due to its quality and the effect of kinetic energy, through racetrack portion
Time, straight line falls, and collides the surface of demister, and is rebounding under action of gravity；Further preferably set
Standby, demister is deflection plate demister or overflowing board demister.
Described demister 2-2 top is provided with activated carbon adsorption layer 2-3, in described activated carbon adsorption layer 2-3
Activated carbon is set, activated carbon requires to have that hole is flourishing, specific surface area is big, adsorption rate is fast, friction resistant,
The advantages such as resistance to flushing, such as the operation through the long period, find that activated carbon becomes sticky, just need when gas prompt drop is low and
Shi Genghuan activated carbon.
Concrete, in the middle of described denitration tank be two ends cylindrical, upper and lower be conical tank body, described tank body
On offer observation port and maintenance replacement port, tank body volume size can according to pending gas flow number depending on,
Use vertical vertical placement.
Clean gas for ease of having processed is discharged, and installs at the conical tank body of described denitration tank topmost
There is exhaust fan 2-4.
Described wastewater electrolytic pond 3 is provided with water inlet pipe 3-1 and outlet pipe 3-2, water inlet pipe 3-1 connection waste gas and gives up
The outlet pipe in water mixed processing pond；Described wastewater electrolytic pond 3 is left and right two cell structure, respectively cathode chamber
3-3 and anode chamber 3-4, described cathode chamber 3-3 connects with the bottom of anode chamber 3-4, and middle and upper part is by dividing plate 3-5
Separating, cathode chamber 3-3 is provided with positive plate 3-6, and anode chamber 3-4 is provided with negative plate 3-7, positive and negative two electrodes
Plate connects outside positive-negative power respectively, and the top of cathode chamber and anode chamber is conical structure, conical structure
Top be designed with discharge 3-8；Further, with ruthenium-iridium-tantalum electrode or ruthenium-iridium-tantalum tin electrode or iridium tantalum titanium electricity
Pole or iridium tantalum titanium tin electrode are positive plate material, and Ti electrode is negative plate material；Described wastewater electrolytic pond
Exit is provided with three phase separator 3-9, and outlet top is provided with overfalling weir 3-10, and overfalling weir connects outlet pipe,
The bottom in exit is designed to pyramidal structure, is provided with sediment discharge valve 3-11 bottom pyramidal structure；Institute
The water inlet pipe 4-1 in the outlet pipe 3-2 connection connection aerobic contact oxidation pond in the wastewater electrolytic pond stated.
In described aerobic contact oxidation pond 4, middle and lower part is provided with water inlet pipe 4-1, and described water inlet pipe 4-1 bottom sets
There is water distribution pyrometric cone 4-2；Described water distribution pyrometric cone 4-2 bottom is provided with aeration regulator control system 4-3, described aeration
Regulator control system 4-3 includes aeration plate, aerator and dissolved oxygen sensing regulation device；Further, described exposure
Gas dish is the pore type aeration plate being evenly arranged with micropore.Described aeration plate connects aerator by aeration tube,
Aerator is arranged on outside aerobic contact oxidation pond, and the top in aerobic contact oxidation pond, waste water underwater arrange molten
Solving oxygenation measurement regulation device, described dissolved oxygen sensing regulation device is according to oxygen capacity regulation and control aerator work；Institute
State water inlet pipe top and be built-in with filler 4-4；The exit in described aerobic contact oxidation pond is laid with downflow weir 4-5.
The outlet pipe in described aerobic contact oxidation pond 4 connects water inlet pipe and the water distributor of second pond, at the bottom of second pond
Portion is provided with sludge recirculation system, and in a part of sludge reflux to aerobic contact oxidation pond 4, a part is residue
Mud.
Water after sedimentation in secondary sedimentation tank processes enters sand filter through downflow weir, enters clear water reserviors reuse after filtration.
A kind of above-mentioned waste gas and PO wastewater comprehensive treatment system is used to carry out the method that waste gas and waste water process, tool
Have the following steps:
1. PO waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
2. waste water enters the boiler waste gas aeration zone 1-1 in waste gas waste water mixed processing pond, position by water inlet pipe 1-7
Aeration plate 1-4 below the water inlet pipe of waste gas waste water mixed processing pond produces a large amount of tiny bubbles and makes waste water and pot
Furnace exhaust is fully contacted, the SO in waste gas2And CO2With the Ca (OH) in waste water2React production precipitate,
The material such as the dust in waste gas is absorbed in waste water simultaneously, and then waste water enters mix and blend district 1-2 and wadding
Flowing into settling zone 1-3 after solidifying agent stirring mixing, due to the effect of three phase separator 1-11, precipitate is at gravity
Effect under sink in the pyramidal structure of bottom, waste gas waste water mixed processing pond, bottom pyramidal structure
Sediment discharge valve 1-13 discharges.
3. due to the effect of three phase separator 1-11 in waste gas waste water mixed processing pond, waste gas is from PO waste water
Entering of exhaust gas denitration tank 2 is entered by the exhaust gas centralized trachea 1-14 on top, waste gas waste water mixed processing pond after effusion
Trachea 2-9, gas distribution pipe 2-10 and denitration region 2-1, the denitration that waste gas sprays with denitration liquid spray equipment 2-5
Liquid contacts, the nitrogen oxides in gas and ferrous chelating agen and iron powder generation chemical reaction, reaction product with
Denitration liquid flows in bottom denitration liquid bath, and precipitate is discharged valve 2-8 and emits；Gas is subsequently into removing
Day with fog 2-2, the drop in gas is here blocked；Then gas enters activated carbon adsorption layer 2-3,
The material being mingled with in gas and drop are intercepted here to be absorbed, and so far waste gas is processed into cleaning
Gas, it is achieved qualified discharge.
4. the waste water after the three phase separator 1-11 separating treatment in waste gas waste water mixed processing pond passes through overfalling weir
1-12, outlet pipe connect the water inlet pipe 3-1 in wastewater electrolytic pond.
5. waste water enters wastewater electrolytic pond 3 by water inlet pipe 3-1, and PO waste water salinity is high, good conductivity,
The oxidized decomposition of pollutant in waste water, the hydrogen that in electrolytic process, negative plate 3-7 produces is through collecting, dividing
Sell from dried；The chlorine that positive plate 3-6 produces is back in the production course of reaction of PO；Electrolysis processes
After waste water by outlet pipe 3-2 connection aerobic contact oxidation pond water inlet pipe 4-1.
6. waste water enters the middle and lower part in aerobic contact oxidation pond 4 by water inlet pipe 4-1, at water distribution pyrometric cone 4-2
Effect under water distribution uniformity, described aeration plate produces substantial amounts of microbubble, described dissolved oxygen sensing regulation and control dress
Put according to oxygen capacity regulation and control aerator work, it is ensured that the dissolved oxygen in aerobic contact oxidation water is more than 2mg/L,
Waste water after process is flowed out by downflow weir 4-5 and outlet pipe.
7. the outlet pipe in aerobic contact oxidation pond connects water inlet pipe and water distributor, the precipitation of second pond of second pond
The a part of sludge reflux of mud is in aerobic contact oxidation pond 4, and a part is as excess sludge.
8. the water after sedimentation in secondary sedimentation tank processes enters sand filter through downflow weir, enters clear water reserviors reuse after filtration.
9. the precipitate and two that waste gas waste water mixed processing pond 1, exhaust gas denitration tank 2 and wastewater electrolytic pond 3 produce
Transport outward after the excess sludge dehydration that heavy pond produces.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, related work
Personnel can carry out various change and amendment completely in the range of without departing from this invention technological thought.
The content that the technical scope of this invention is not limited in description, it is necessary to according to right
Determine its technical scope.
Claims (2)
1. a waste gas and PO wastewater comprehensive treatment system, it is characterised in that: include wastewater equalization pond, give up
Gas waste water mixed processing pond (1), exhaust gas denitration tank (2), wastewater electrolytic pond (3), aerobic contact oxidation pond (4),
Second pond and sand filter；
Described wastewater equalization pond includes water inlet pipe and outlet pipe, for regulating water quality and the water yield of PO waste water；
Described waste gas waste water mixed processing pond (1) includes boiler waste gas aeration zone (1-1), mix and blend district
(1-2) with settling zone (1-3)；Bottom, boiler waste gas aeration zone (1-1) is provided with aeration plate (1-4),
Described aeration plate (1-4) is connected by air inlet pipe the blower fan (1-5) outside waste gas waste water mixed processing pond,
Blower fan (1-5) passes through pipeline communication boiler；Described aeration plate (1-4) be arranged over water distribution branch pipe (1-6),
Described water distribution branch pipe (1-6) connects water inlet pipe (1-7), and water inlet pipe (1-7) connects wastewater equalization pond
Outlet pipe；Described mix and blend district (1-2) is provided with agitating device (1-8) and medicinal liquid add-on system (1-9),
The medicinal liquid that described medicinal liquid add-on system adds is inorganic flocculating agent aluminium polychlorid, bodied ferric sulfate and organic wadding
Solidifying agent polyacrylamide medicinal liquid, its concentration is determined by experiment；Baffle plate (1-10) it is provided with in described settling zone (1-3),
This baffle plate forms the waste water runner as waste water entrance settling zone, the exit of settling zone with the inwall of sedimentation tank
Being provided with three phase separator (1-11), the outlet top of settling zone is provided with overfalling weir (1-12), bottom settling zone
It is designed to pyramidal structure, bottom settling zone, is provided with sediment discharge valve (1-13)；Described waste gas waste water
Mixed processing pond is provided with upper cover, upper cover design coning structure, and conical structure top is provided with waste gas gas collection
Pipe (1-14), the air inlet pipe (2-9) of described exhaust gas centralized trachea (1-14) connection exhaust gas denitration tank (2)；
Described exhaust gas denitration tank (2) be upwards followed successively by from tank base denitration region (2-1), demister (2-2),
Activated carbon adsorption layer (2-3) and exhaust fan (2-4)；Described denitration region is provided with exhaust gas denitration assembly, described
Exhaust gas denitration assembly include being positioned at the denitration liquid spray equipment (2-5) on exhaust gas denitration assembly top, denitration liquid
Backflow and adding set (2-6) and be positioned at the denitration liquid bath (2-7) of exhaust gas denitration assembly bottom；Described is de-
Nitre liquid spray equipment (2-5) is helical form spray equipment；Described denitration liquid backflow and adding set (2-6)
Including denitration flow container and agitating device, denitration liquid adding set connects denitration liquid circulating pump by pipeline with valve；
The denitration liquid that described exhaust gas denitration assembly uses is ferrous chelating agen and the mixture of iron powder, joining of denitration liquid
Specific concentration determines according to the exhausted air quantity processed and exhaust gas concentration；Denitration liquid trench bottom is designed to pyramidal structure,
And it is provided with sediment discharge valve (2-8) and sediment discharge pipe；Denitration region middle and lower part is additionally provided with air inlet pipe
(2-9) with gas distribution pipe (2-10)；Described denitration region top is provided with demister (2-2), demister top
It is provided with activated carbon adsorption layer (2-3), at the conical tank body of described denitration tank topmost, exhaust fan is installed
(2-4), in the middle of described denitration tank be two ends cylindrical, upper and lower be conical tank body, use vertical vertically
Place；
Described wastewater electrolytic pond (3) is provided with water inlet pipe (3-1) and outlet pipe (3-2), water inlet pipe (3-1)
The outlet pipe in connection waste gas waste water mixed processing pond；Described wastewater electrolytic pond (3) is left and right two cell structure,
It is respectively cathode chamber (3-3) and anode chamber (3-4), described cathode chamber (3-3) and anode chamber (3-4)
Bottom connection, middle and upper part is separated by dividing plate (3-5), and cathode chamber (3-3) is provided with positive plate (3-6), negative
Room, pole (3-4) is provided with negative plate (3-7), and positive and negative two battery lead plates connect outside positive-negative power, positive pole respectively
The top of room and anode chamber is conical structure, and the top of conical structure is designed with discharge (3-8)；Enter
One step, be positive plate with ruthenium-iridium-tantalum electrode or ruthenium-iridium-tantalum tin electrode or iridium tantalum Ti electrode or iridium tantalum titanium tin electrode
Material, Ti electrode is negative plate material；The exit in described wastewater electrolytic pond is provided with three phase separator (3-9),
Outlet top is provided with overfalling weir (3-10), and overfalling weir connects outlet pipe, and the bottom in exit is designed to taper knot
Structure, is provided with sediment discharge valve (3-11) bottom pyramidal structure；The outlet pipe in described wastewater electrolytic pond
(3-2) water inlet pipe (4-1) in connection connection aerobic contact oxidation pond；
The interior middle and lower part of described aerobic contact oxidation pond (4) arranges water inlet pipe (4-1), described water inlet pipe (4-1)
Bottom is provided with water distribution pyrometric cone (4-2)；Described water distribution pyrometric cone (4-2) bottom is provided with aeration regulator control system
(4-3), described aeration regulator control system (4-3) includes aeration plate, aerator and dissolved oxygen sensing regulation device；
Further, described aeration plate is the pore type aeration plate being evenly arranged with micropore；Described aeration plate passes through
Aeration tube connects aerator, and aerator is arranged on outside aerobic contact oxidation pond, the top in aerobic contact oxidation pond,
Waste water underwater arranges dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device is adjusted according to oxygen capacity
Control aerator work；Described water inlet pipe top is built-in with filler (4-4)；The outlet in described aerobic contact oxidation pond
Place is laid with downflow weir (4-5)；
The outlet pipe of described aerobic contact oxidation pond (4) connects the water inlet pipe of second pond, is provided with bottom second pond
Sludge recirculation system, in a part of sludge reflux to aerobic contact oxidation pond (4).
2. one kind use waste gas as claimed in claim 1 and PO wastewater comprehensive treatment system carry out waste gas and
The method that waste water processes, has following steps:
1. PO waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe；
2. waste water enters the boiler waste gas aeration zone in waste gas waste water mixed processing pond by water inlet pipe (1-7)
(1-1), it is positioned at the aeration plate (1-4) below the water inlet pipe of waste gas waste water mixed processing pond and produces a large amount of tiny gas
Bubble makes waste water be fully contacted with boiler waste gas, the SO in waste gas2And CO2With the Ca (OH) in waste water2React
Producing precipitate, the dust in waste gas is absorbed in waste water simultaneously, and then waste water enters mix and blend district
(1-2) settling zone (1-3) is flowed into flocculant mix and blend after reacting, due to three phase separator (1-11)
Effect, precipitate sinks in the pyramidal structure of bottom, waste gas waste water mixed processing pond under gravity,
Discharged by the sediment discharge valve (1-13) bottom pyramidal structure；
3. due to the effect of three phase separator (1-11) in waste gas waste water mixed processing pond, waste gas is from PO waste water
Exhaust gas denitration tank is entered by the exhaust gas centralized trachea (1-14) on top, waste gas waste water mixed processing pond after middle effusion
(2) air inlet pipe (2-9), gas distribution pipe (2-10) and denitration region (2-1), waste gas and denitration liquid spray dress
Putting the denitration liquid contact that (2-5) sprays, there is chemistry with ferrous chelating agen and iron powder in the nitrogen oxides in gas
Reaction, reaction product flows in bottom denitration liquid bath with denitration liquid, and precipitate is discharged valve (2-8) discharge
Go out；Gas is here blocked subsequently into demister (2-2), the drop in gas；Then gas
Body enters activated carbon adsorption layer (2-3), under the intercepted absorption here of the material being mingled with in gas and drop
Coming, so far waste gas is processed into the gas of cleaning, it is achieved qualified discharge；
4. the waste water after three phase separator (1-11) separating treatment in waste gas waste water mixed processing pond passes through spilling water
Weir (1-12), the water inlet pipe (3-1) in outlet pipe connection wastewater electrolytic pond；
5. waste water enters wastewater electrolytic pond (3) by water inlet pipe (3-1), and PO waste water salinity is high, electric conductivity
Good, the oxidized decomposition of pollutant in waste water, the hydrogen that in electrolytic process, negative plate (3-7) produces is through receiving
Collection, the dried sale of separation；The chlorine that positive plate (3-6) produces is back in the production course of reaction of PO；
Waste water after electrolysis process is by the water inlet pipe (4-1) in outlet pipe (3-2) connection aerobic contact oxidation pond；
6. waste water enters the middle and lower part in aerobic contact oxidation pond (4) by water inlet pipe (4-1), at water distribution three
Water distribution uniformity under the effect of pyramid (4-2), described aeration plate produces substantial amounts of microbubble, described dissolved oxygen
Measure regulation device according to oxygen capacity regulation and control aerator work, it is ensured that the dissolved oxygen in aerobic contact oxidation water
More than 2mg/L, the waste water after process is flowed out by downflow weir (4-5) and outlet pipe；
7. the outlet pipe in aerobic contact oxidation pond connects water inlet pipe and water distributor, the precipitation of second pond of second pond
The a part of sludge reflux of mud is in aerobic contact oxidation pond (4), and a part is as excess sludge；
8. the water after sedimentation in secondary sedimentation tank processes enters sand filter through downflow weir, enters clear water reserviors reuse after filtration；
9. waste gas waste water mixed processing pond (1), exhaust gas denitration tank (2) and wastewater electrolytic pond (3) produce
Transport outward after the excess sludge dehydration that precipitate and second pond produce.
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| CN201510039887.XA CN104671592B (en) | 2015-01-26 | 2015-01-26 | Waste gas and PO wastewater comprehensive treatment system |
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| CN105036485A (en) * | 2015-08-16 | 2015-11-11 | 常州大学 | Refuse leachate treatment system |
| CN105645674A (en) * | 2015-12-31 | 2016-06-08 | 安徽省绿巨人环境技术有限公司 | High-salinity organic wastewater treatment method and high-salinity organic wastewater treatment device |
| CN106731522A (en) * | 2017-01-25 | 2017-05-31 | 郑祥开 | A kind of air purification method and purifier |
| CN107469597B (en) * | 2017-09-21 | 2024-04-02 | 马加德 | Electrochemical-based waste gas and waste water coupling purification system and purification method thereof |
| CN110302925A (en) * | 2019-08-02 | 2019-10-08 | 章富强 | It is interior to recycle from the micro- discharge spray room system of deslagging |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745304A (en) * | 2009-10-19 | 2010-06-23 | 华中农业大学 | Method for removing NO and SO2 from environment pollution emissions |
| EP2321229B1 (en) * | 2008-08-21 | 2013-07-24 | Holger Blum | Waste water cleaning device comprising an anaerobic fixed bed filter and an electroflocculation cell |
| CN103908881A (en) * | 2014-04-08 | 2014-07-09 | 淮南市明月环保科技有限责任公司 | Electrolytic denitrification method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2321229B1 (en) * | 2008-08-21 | 2013-07-24 | Holger Blum | Waste water cleaning device comprising an anaerobic fixed bed filter and an electroflocculation cell |
| CN101745304A (en) * | 2009-10-19 | 2010-06-23 | 华中农业大学 | Method for removing NO and SO2 from environment pollution emissions |
| CN103908881A (en) * | 2014-04-08 | 2014-07-09 | 淮南市明月环保科技有限责任公司 | Electrolytic denitrification method |
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Effective date of registration: 20201111 Address after: 221300 Chahe Town New District, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Pizhou Borui Investment Management Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |