CN208802969U - A kind of processing system proposing mark transformation for sewage treatment plant tail water - Google Patents
A kind of processing system proposing mark transformation for sewage treatment plant tail water Download PDFInfo
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- CN208802969U CN208802969U CN201821249933.4U CN201821249933U CN208802969U CN 208802969 U CN208802969 U CN 208802969U CN 201821249933 U CN201821249933 U CN 201821249933U CN 208802969 U CN208802969 U CN 208802969U
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Abstract
The utility model discloses a kind of processing systems that mark transformation is proposed for sewage treatment plant tail water, including shell, control cabinet, chemicals dosing plant, raw water box, air bearing dephosphorizing reactor, at least one denitrification deep-bed filtration reactor, at least one modified activated carbon adsorption tower and filtered water tank, air bearing dephosphorizing reactor includes air bearing shell, dosing reaction zone, contact zone of dissolved air flotation, the gentle float assembly pool in flotation separation zone, and denitrification deep-bed filtration reactor includes reactor shell, carbon source reaction zone, quartz sand filler layer and supporting layer；Modified activated carbon adsorption tower includes absorption tower shell and modified active layer of charcoal；Chemicals dosing plant includes that at least one dosing tank and a carbon source add case and multiple dosing pumps.Processing of the tail water processing equipment and treatment process that the utility model air bearing dephosphorization+denitrification deep-bed filtration+modified activated carbon absorption combines to sewage treatment plant tail water, effectively removes the organic pollutants such as COD in sewage, ammonia nitrogen, total nitrogen, total phosphorus by each operation stage.
Description
Technical field
The utility model belongs to technical field of sewage, in particular to a kind of to propose mark transformation for sewage treatment plant tail water
Processing system.
Background technique
In recent years, the rate of economic development in China is swift and violent, and bring environmental problem increasingly highlights, while water treatment technology water
Flat also obtain significantly is promoted, but new problem also continuously emerges in management and technological layer.Currently, various regions sewage treatment plant
Mention mark retrofit work also successively carry out in, however, in this course, target cannot rationally be arranged, so that just building up just
Be transformed, after transformation effluent quality be still difficult to reach expected requirement case it is commonplace.
It requires part to go out water pollutant index in proposing mark transformation for sewage treatment plant and reaches " surface water environment quality mark
It is quasi- " " IV class " standard or even tightened up " III class " standard in (GB3838-2002), and at the tradition of general sewage treatment plant
Science and engineering skill, and the emission limit of above-mentioned standard far can not be reached, it is therefore desirable to a kind of novel sewage treatment process is researched and developed, with
Meet the new standard under existing situation.
Utility model content
The raising for the emission limit for going out water pollutant that the utility model requires in proposing mark transformation for sewage treatment plant,
Provide a kind of tail water processing equipment combined using the absorption of air bearing dephosphorization+denitrification deep-bed filtration+modified activated carbon and place
Processing of the science and engineering skill to sewage treatment plant tail water effectively removes COD in sewage, ammonia nitrogen, total nitrogen, total by each operation stage
Transformation is marked in the organic pollutants such as phosphorus, and high degree of automation, low the mentioning for sewage treatment plant tail water of labor intensity of workers
Processing system.
The technical solution of the utility model includes: a kind of processing system that mark transformation is proposed for sewage treatment plant tail water, including it is outer
Shell, setting control cabinet inside the shell, chemicals dosing plant, raw water box, the air bearing dephosphorization being connected in turn by pipeline on raw water box
Reactor, at least one denitrification deep-bed filtration reactor, at least one modified activated carbon adsorption tower and filtered water tank,
The air bearing dephosphorizing reactor includes air bearing shell, is successively set on the intracorporal dosing reaction of air bearing shell from front to back
Area, contact zone of dissolved air flotation, the gentle float assembly pool in flotation separation zone, the dosing reaction zone is interior equipped at least one blender, described
Contact zone of dissolved air flotation bottom is equipped with release, is equipped with Slag Scraping Device and collecting tank at the top of the flotation separation zone, the release passes through
One air dissolved pump connects the bottom water outlet of air bearing gathering ground, and the water inlet of the dosing reaction zone is former by the connection of level-one elevator pump
The top delivery port of the water outlet of water tank, the air bearing gathering ground connects an air bearing water producing tank by pipeline；
The denitrification deep-bed filtration reactor includes reactor shell, is successively set in reactor enclosure body from top to bottom
Carbon source reaction zone, quartz sand filler layer and supporting layer；The water inlet of the denitrification deep-bed filtration reactor is mentioned by second level
The water outlet of pump connection air bearing water producing tank is risen, the water outlet of denitrification deep-bed filtration reactor connects modified activated carbon by pipeline
The water inlet of adsorption tower；
The modified activated carbon adsorption tower includes the modified active layer of charcoal adsorbing tower shell and being arranged in absorption tower shell,
Flusher, the water inlet of the water outlet connection filtered water tank of the modified activated carbon adsorption tower are equipped with above the modified active layer of charcoal
Mouthful；
The chemicals dosing plant includes at least one dosing tank for cooperating dosing reaction zone and one that cooperates carbon source reaction zone
Carbon source adds case and cooperation dosing tank and carbon source adds the dosing pump of case.
The tail water processing that the utility model is combined using air bearing dephosphorization+denitrification deep-bed filtration+modified activated carbon absorption
The processing of equipment and treatment process to sewage treatment plant tail water effectively removes COD in sewage, ammonia by each operation stage
The organic pollutants such as nitrogen, total nitrogen, total phosphorus.
The air bearing dephosphorization stage of the utility model is using dissolved air flotation dephosphorization.Air dissolved pump is sucked using suction function
Air, while high-speed rotating impeller of pump stirs liquid and gas mixing, so that gas is sufficiently dissolved with liquid, then by releasing
Put device release, the air that is dissolved in water is precipitated, form a large amount of microbubble group, with after dosing just in flocculated sewage
Suspended matter comes into full contact with, and is adsorbed in slow uphill process in the suspended matter that wadding collect, make the decline of its density and floating to water
Face can also remove the pollutants such as the COD, ammonia nitrogen, SS of part while removing total phosphorus.
Denitrification deep-bed filtration reactor use 2~3mm quartz sand medium filtrate, it is ensured that water outlet SS lower than 5mg/L with
Under.Make solid impurity penetrate the surface layer of filter bed using global quartz powder, gos deep into the filtrate of reactor, reach entire reactor
The excellent effect of depth retention solids.Global quartz powder is used as the biofilm medium of denitrification biology again simultaneously, using excellent in right amount
Nitrate nitrogen is converted into nitrogen and completes denitrification reaction process by matter carbon source, denitrifying bacteria of the apposition growth on quartz sand surface.
In denitrification process, since nitrate nitrogen is constantly reduced to nitrogen, a large amount of nitrogen can be gathered in deep-bed filtration reactor, this
A little gases can make sewage around altering between medium, enhance contact of the microorganism with water flow in this way, while also improving filter efficiency.
Contain BOD in every milligram of SS50.4 ~ 0.5 milligram, therefore also reduced in water outlet while solid suspension in removal water outlet
BOD5.In addition, solid suspension contains nitrogen, phosphorus and other heavy metal substances in water outlet, removal solid suspension can usually be reduced
The above-mentioned impurity of 1mg/L or more.The air bearing dephosphorization for cooperating front end can make water outlet total phosphorus stabilization be down to 0.3mg/L or less.Denitrification
Deep-bed filtration reactor can easily meet the usual SS < 2mg/L of turbidity < 2NTU or SS < 5mg/L() requirement.Denitrification depth bed mistake
Reactor is filtered compared to other treatment process, great advantage is TN removal rate with higher.
Modified activated carbon adsorption tower is mainly by adsorption tower tank body, inlet and outlet pipe, the modified activated carbon circulatory system, modified work
Property the composition such as charcoal flusher.For the stability for keeping effluent quality, modified activated carbon is absorbed and filter using two-stage.Use modification
For active carbon as absorption tower packing, modified activated carbon has flourishing gap, and large specific surface area has very high adsorption capacity.
Just because of this characteristic of modified activated carbon, it is widely used in the advanced treating of water, such as domestic water, sewage back segment
(water purification) advanced treating etc..
The air bearing dephosphorization front end of the utility model is equipped with Dephosphorization reagent throwing device, becomes apparent from its phosphor-removing effect.
Dissolved air floatation system uses air dissolved pump, without using traditional air compressor machine+air accumulator form, more saves empty
Between, and noise is small.
Preferably, the quantity of the denitrification deep-bed filtration reactor and modified activated carbon adsorption tower is two, two
Denitrification deep-bed filtration reactor is connected in parallel, and two modified activated carbon adsorption towers are connected in series.
This kind of structure ensures the effect of denitrification deep-bed filtration and modified activated carbon absorption.
Preferably, the quantity of the blender is two, be successively arranged in the air bearing shell from front to back first partition,
Second partition, third partition, the 4th partition and the 5th partition, the first partition are located between two blenders, and described second
Partition is located in contact zone of dissolved air flotation, and the third partition and the 4th partition are respectively positioned in flotation separation zone, the 5th partition position
In in air bearing gathering ground, the bottom of the first partition and third partition was equipped with the mouth of a river, the second partition and the 4th partition
Top be equipped with the mouth of a river, the 5th partition was equipped with the mouth of a river close to bottom side, the upper angled setting of the 4th partition,
The release is between third partition and the 4th partition.
This kind of structure may insure its molten gas effect, thereby further ensure that air bearing phosphor-removing effect.
Preferably, the water inlet of the denitrification deep-bed filtration reactor is located at the top of reactor shell, denitrification depth bed
The water outlet of filtration reactor is located at reactor shell bottom, and the water inlet of the modified activated carbon adsorption tower is located at absorption tower casing
One side lower part of body, the water outlet of modified activated carbon adsorption tower are located at absorption tower shell other side top.
Preferably, which further includes the back purge system of a cooperation denitrification deep-bed filtration reactor, described anti-
Flusher includes the air compressor machine for gas flushing and the flushing pump for water flushing, the denitrification deep-bed filtration reactor bottom
Portion is equipped with backwash mouth, and the air compressor machine is separately connected the recoil of two denitrification deep-bed filtration reactors by gas flushing pipeline
Mouth is washed, the water inlet end of the flushing pump connects filtered water tank, and the water outlet of flushing pump is separately connected two denitrification depths by pipeline
The backwash mouth of bed filtration reactor.
Preferably, which further includes cooperating the charcoal circle irrigation system of modified activated carbon adsorption tower, two modifications
Activated carbon adsorber is respectively to be connected to the level-one modified activated carbon adsorption tower after denitrification deep-bed filtration reactor and be connected to
Second level modified activated carbon adsorption tower after level-one modified activated carbon adsorption tower, the charcoal circle irrigation system include being located at modified live
Property charcoal adsorption tower in flusher, second level modified activated carbon absorption tower bottom and connection level-one modified activated carbon adsorption tower and
The charcoal circulating line of second level modified activated carbon adsorption tower.
Modified activated carbon adsorption tower be equipped with the charcoal circulatory system and flusher, in adsorption tower, water flow from below to up, carbon granule
It is contrary with water flow, the adsorption saturation at first of bottom modified activated carbon.The saturation charcoal for adsorbing tower bottom passes through the charcoal circulatory system
It can carry out the circulation or discharge regeneration of carbon granule；When carbon granule is recycled into adsorption tower, can be set in flusher by flusher
There is sieve, can separate, the broken carbon granule gathered.
Modified activated carbon adsorption tower can be according to effluent quality situation, and the modified activated carbon after setting adsorption saturation discharges,
Whole process, without shutting down.
Entire processing system uses advanced automated control technology, improves the management level of system, guarantees tail water processing
Process operation mitigates the labor intensity of operational management personnel in optimum state as far as possible.
Preferably, equipped with for acquiring, detecting all analog signals of detection instrument and switching value letter on the control cabinet
Number PLC controller and touch screen for controlling equipment start-stop.
Preferably, the level gauge for controlling level-one elevator pump start and stop is equipped in the raw water box, in the filtered water tank
Equipped with the level gauge for controlling flushing pump start and stop, the air bearing water producing tank is equipped with online determination of total nitrogen content instrument, the second level
Electromagnetic flowmeter is equipped between elevator pump and denitrification deep-bed filtration reactor, the denitrification deep-bed filtration reactor is equipped with
The control valve of online DO analyzer, the denitrification deep-bed filtration reactor and modified activated carbon adsorption tower is motor-driven valve.
Denitrification deep-bed filtration reactor, the data measured by online determination of total nitrogen content instrument and online DO instrument, can be effective
Control carbon source dosage, improve nitric efficiency.
Preferably, the quantity of the dosing tank is two, and two dosing tanks respectively correspond two stirrings of dosing reaction zone
Machine, the denitrification deep-bed filtration reactor head are equipped with cooperation carbon source and add the reactive tank of case, the position of the reactive tank and
The water inlet position of denitrification deep-bed filtration reactor is corresponding.
A kind of processing method for the processing system proposing mark transformation for sewage treatment plant tail water, steps are as follows: sewage plant tail
Water is promoted to raw water box storage by gravity or pump, then is promoted to air bearing dephosphorizing reactor by level-one elevator pump, in air bearing dephosphorization
Blender is arranged in the dosing reaction zone of reactor front end, by adding Dephosphorization reagent, so that the pollutant wadding in tail water is integrated
Group, air dissolved pump sucks air using suction function, while high-speed rotating impeller of pump stirs liquid and gas mixing, makes to bring about the desired sensation
Body is sufficiently dissolved with liquid, then is discharged by release, and the air being dissolved in water is precipitated, and forms a large amount of microbubble group, together
Suspended matter after dosing just in flocculated sewage comes into full contact with, and the suspension wadded a quilt with cotton and collected is adsorbed in slow uphill process
In object, the suspended matter of floating is scraped in the collecting tank of reactor by Slag Scraping Device again, and the water after processing flow to air bearing water producing tank certainly；
Sewage after air bearing dephosphorizing reactor, then be promoted in denitrification deep-bed filtration reactor by second lift pump, sewage
Quartz sand filler layer and supporting layer are passed sequentially through from top to down, the effect of the denitrifying bacteria adhered on filler in reactor
Under, the pollutants such as ammonia nitrogen, the total nitrogen in water removal are removed, water outlet enters modified activated carbon adsorption tower by reactor bottom outlet pipe
It is interior；The water outlet of denitrification deep-bed filtration reactor flow to modified activated carbon adsorption tower by outlet pipe, the work of the water distributor in tower
Under, uniformly it is discharged；Water flow from bottom to top, by the suction-operated of modified activated carbon, goes organic dirt in water removal in adsorption tower
Object is contaminated, final outflow water flow to filtered water tank.
The tail water processing that the utility model is combined using air bearing dephosphorization+denitrification deep-bed filtration+modified activated carbon absorption
The processing of equipment and treatment process to sewage treatment plant tail water effectively removes COD in sewage, ammonia by each operation stage
The organic pollutants such as nitrogen, total nitrogen, total phosphorus, and high degree of automation, labor intensity of workers are low.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the utility model；
Fig. 2 is the schematic top plan view of the utility model；
1. raw water box in figure, 2. air bearing dephosphorizing reactors, 3. air bearing water producing tanks, 4. denitrification deep-bed filtration reactors, 5.
Level-one modified activated carbon adsorption tower, 6. filtered water tanks, 7. level-one elevator pumps, 8. blenders, 9. air dissolved pumps, 10. Slag Scraping Devices, 11. 2
Grade elevator pump, 12. electromagnetic flowmeters, 13. motor-driven valves, 14. flushers, 15. flushing pumps, 16. air compressor machines, 17. online total nitrogens
Analyzer, 18. online DO analyzers, 19. dosing tanks, 20. dosing pumps, 21. quartz sand filler layers, 22. supporting layers, 23. is modified
Active carbon layer, 24. control cabinets, 25. shells, 26. air bearing shells, 27. releases, 28. collecting tanks, 29. reactor shells, 30.
Adsorb tower shell, 31. first partitions, 32. second partitions, 33. third partitions, 34. the 4th partitions, 35. the 5th partitions, 36. carbon
Source adds case, 37. second level modified activated carbon adsorption towers, 38. reactive tanks.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, but is not that model is protected to the utility model
The limitation enclosed.
As illustrated in fig. 1 and 2, a kind of processing system proposing mark transformation for sewage treatment plant tail water, including shell 25, setting
It is anti-in the control cabinet 24 in shell 25, chemicals dosing plant, raw water box 1, the air bearing dephosphorization that is connected in turn on raw water box 1 by pipeline
The modified activated carbon adsorption tower of denitrification deep-bed filtration reactor 4, two of device 2, two and a filtered water tank 6 are answered,
Air bearing dephosphorizing reactor 2 is anti-including air bearing shell 26, the dosing being successively set in air bearing shell 26 from front to back
Area, contact zone of dissolved air flotation, the gentle float assembly pool in flotation separation zone are answered, is set in dosing reaction zone there are two blender 8, contact zone of dissolved air flotation
Bottom is equipped with release 27, and Slag Scraping Device 10 and collecting tank 28 are equipped at the top of flotation separation zone, and release 27 is connected by an air dissolved pump 9
The bottom water outlet of air bearing gathering ground is connect, the water inlet of dosing reaction zone connects the water outlet of raw water box 1 by level-one elevator pump 7
Mouthful, the top delivery port of air bearing gathering ground connects an air bearing water producing tank 3 by pipeline；
Denitrification deep-bed filtration reactor 4 includes reactor shell 29, is successively set on reactor shell 29 from top to bottom
Interior carbon source reaction zone, quartz sand filler layer 21 and supporting layer 22；The water inlet of denitrification deep-bed filtration reactor 4 passes through second level
Elevator pump 11 connects the water outlet of air bearing water producing tank 3, and the water outlet of denitrification deep-bed filtration reactor 4 is connected by pipeline to be modified
The water inlet of activated carbon adsorber；
Modified activated carbon adsorption tower includes the modified active layer of charcoal adsorbing tower shell 30 and being arranged in absorption tower shell 30
23, flusher 14, the water inlet of the water outlet connection filtered water tank 6 of modified activated carbon adsorption tower are equipped with above modified active layer of charcoal 23
Mouthful；
Chemicals dosing plant includes that a carbon source for cooperating two dosing tanks 19 of dosing reaction zone and cooperation to throw charcoal reaction zone is thrown
Case 36 and cooperation dosing tank 19 and carbon source is added to add the dosing pump 20 of case 36.
Two denitrification deep-bed filtration reactors 4 are connected in parallel, and two modified activated carbon adsorption towers are connected in series.
First partition 31, second partition 32, third partition 33, the 4th partition are successively arranged in air bearing shell 26 from front to back
34 and the 5th partition 35, first partition 31 be located between two blenders 8, the second partition 32 is located in contact zone of dissolved air flotation,
The third partition 33 and the 4th partition 34 are respectively positioned in flotation separation zone, and the 5th partition 35 is located in air bearing gathering ground,
The bottom of first partition 31 and third partition 33 was equipped with the mouth of a river, and the top of second partition 32 and the 4th partition 34 was equipped with water
Mouthful, the 5th partition 35 was equipped with the mouth of a river close to bottom side, the upper angled setting of the 4th partition 34, release 27 be located at third every
Between plate 33 and the 4th partition 34.
The water inlet of denitrification deep-bed filtration reactor 4 is located at 29 top of reactor shell, the reaction of denitrification deep-bed filtration
The water outlet of device 4 is located at 29 bottom of reactor shell, and the water inlet of modified activated carbon adsorption tower is located at absorption 30 side of tower shell
Lower part, the water outlet of modified activated carbon adsorption tower are located at the absorption another upper lateral part of tower shell 30.
The processing system further includes the back purge system of a cooperation denitrification deep-bed filtration reactor 4, back purge system packet
The flushing pump 15 for including the air compressor machine 16 for gas flushing and rinsing for water, 4 bottom of denitrification deep-bed filtration reactor are equipped with anti-
Rinse mouth, air compressor machine 16 are separately connected the backwash mouth of two denitrification deep-bed filtration reactors 4 by gas flushing pipeline, rinse
The water inlet end of pump 15 connects filtered water tank 6, and it is anti-that the water outlet of flushing pump 15 by pipeline is separately connected two denitrification deep-bed filtrations
Answer the backwash mouth of device 4.
The processing system further includes cooperating the charcoal circle irrigation system of modified activated carbon adsorption tower, and two modified activated carbons are inhaled
Attached tower is respectively to be connected to the level-one modified activated carbon adsorption tower 5 after denitrification deep-bed filtration reactor 4 and be connected to level-one to change
Property activated carbon adsorber 5 after second level modified activated carbon adsorption tower 37, charcoal circle irrigation system include be located at modified activated carbon inhale
Flusher 14,37 bottom of second level modified activated carbon adsorption tower and connection 5 and of level-one modified activated carbon adsorption tower in attached tower
The charcoal circulating line of second level modified activated carbon adsorption tower 37.
Equipped with the PLC control for acquiring, detecting all analog signals of detection instrument and on-off model on control cabinet 24
Device processed and touch screen for controlling equipment start-stop.
It is equipped with the level gauge for controlling 7 start and stop of level-one elevator pump in raw water box 1, is equipped in filtered water tank 6 for controlling
The level gauge of 15 start and stop of flushing pump, air bearing water producing tank 3 are equipped with online determination of total nitrogen content instrument 17, two-stage hoisting pump 11 and denitrification
Electromagnetic flowmeter 12 is equipped between deep-bed filtration reactor 4, denitrification deep-bed filtration reactor 4 is equipped with online DO analyzer
18, the control valve of denitrification deep-bed filtration reactor 4 and modified activated carbon adsorption tower 5 is motor-driven valve 13.
Two dosing tanks 19 respectively correspond two blenders 8 of dosing reaction zone, 4 top of denitrification deep-bed filtration reactor
The reactive tank 38 of case 36, the position of reactive tank 38 and the water inlet of denitrification deep-bed filtration reactor 4 are added equipped with cooperation carbon source
Position is corresponding.
A kind of processing method for the processing system proposing mark transformation for sewage treatment plant tail water, steps are as follows: sewage plant tail
Water is promoted to raw water box storage by gravity or pump, then is promoted to air bearing dephosphorizing reactor by level-one elevator pump, in air bearing dephosphorization
Blender is arranged in the dosing reaction zone of reactor front end, by adding Dephosphorization reagent, so that the pollutant wadding in tail water is integrated
Group, air dissolved pump sucks air using suction function, while high-speed rotating impeller of pump stirs liquid and gas mixing, makes to bring about the desired sensation
Body is sufficiently dissolved with liquid, then is discharged by release, and the air being dissolved in water is precipitated, and forms a large amount of microbubble group, together
Suspended matter after dosing just in flocculated sewage comes into full contact with, and the suspension wadded a quilt with cotton and collected is adsorbed in slow uphill process
In object, the suspended matter of floating is scraped in the collecting tank of reactor by Slag Scraping Device again, and the water after processing flow to air bearing water producing tank certainly；
Sewage after air bearing dephosphorizing reactor, then be promoted in denitrification deep-bed filtration reactor by second lift pump, sewage
Quartz sand filler layer and supporting layer are passed sequentially through from top to down, the effect of the denitrifying bacteria adhered on filler in reactor
Under, the pollutants such as ammonia nitrogen, the total nitrogen in water removal are removed, water outlet enters modified activated carbon adsorption tower by reactor bottom outlet pipe
It is interior；The water outlet of denitrification deep-bed filtration reactor flow to modified activated carbon adsorption tower by outlet pipe, the work of the water distributor in tower
Under, uniformly it is discharged；Water flow from bottom to top, by the suction-operated of modified activated carbon, goes organic dirt in water removal in adsorption tower
Object is contaminated, final outflow water flow to filtered water tank.
After denitrification deep-bed filtration reactor operation a period of time of the utility model, in quartz sand filler layer and supporting layer
Denitrifying bacteria and its metabolite of a large amount of agings can be adhered to, at this time, it is necessary to entire reactor filler layer is rinsed,
Flushing is divided into gas flushing and water rinses.Compressed pressure-air was passed through by air compressor machine via the pipeline of reactor bottom before this
In reactor, separate the denitrifying bacteria of aging and its metabolite with filler, while flushing pump is by the clear water in filtered water tank
It by the pipeline of reactor bottom, is pumped in reactor, under the collective effect of air and water flow, by the anti-of isolated aging
Nitrobacteria and its metabolite take reactor out of.
After modified activated carbon in the modified activated carbon adsorption tower of the utility model is adsorbed onto a period of time, will partially it reach
To saturation, entire modified active layer of charcoal is needed to replace out by the modified activated carbon of saturation or stirred, the suction of adsorption tower is improved
Attached efficiency.Present treatment system devises the charcoal circulatory system and flusher thus.Level-one modified activated carbon absorption tower bottom changes
Property active carbon, contact sewage at first, adsorbance is also corresponding maximum, and the charcoal circulatory system is will to adsorb the charcoal of tower bottom to pass through air lift work
With taking out of, it is discharged into capable regeneration using different pipelines, or return in adsorption tower and utilize again；The water inlet of secondary absorption tower
For the production water of primary adsorption tower, water quality is preferable, therefore the second level charcoal circulatory system is that 23 modified activated carbons of tower bottom are carried out inside
It recycles or mentions to recycling in primary adsorption tower.When modified activated carbon is recycled into adsorption tower, can be rushed by flusher
It is equipped with sieve in cleaning device, can separate, the broken modified activated carbon gathered, restore the partial adsorbates energy of its modified activated carbon
Power.After circulation terminates, the modified activated carbon in retained cyclical pipeline is stayed using flushing pump and is developed, to prevent blocking pipeline.
Present treatment system is to guarantee that tail water treatment process operates in optimum state, mitigates the labor of operational management personnel as far as possible
Fatigue resistance, using advanced automated control technology, equipped with PLC, touch screen etc. in control cabinet, for acquiring, detecting whole
The analog signal and on-off model for detecting instrument, control the start and stop of equipment.
It is equipped with level gauge in each water tank, the start-up and shut-down control for water pump；It is the electromagnetic flowmeter of setting, online total
The instrument such as apparatus for nitrogen examination, online DO analyzer, are the dosages for controlling carbon source throwing device, improve denitrification deep-bed filtration
The de- single-action rate of reactor；The control valve of denitrification deep-bed filtration reactor and modified activated carbon adsorption tower is motor-driven valve, just
In automatic operating.
Claims (9)
1. a kind of processing system for proposing mark transformation for sewage treatment plant tail water, it is characterised in that: it includes shell, is arranged outside
Control cabinet, chemicals dosing plant, raw water box in shell, the air bearing dephosphorizing reactor being connected in turn by pipeline on raw water box, at least
One denitrification deep-bed filtration reactor, at least one modified activated carbon adsorption tower and filtered water tank,
The air bearing dephosphorizing reactor include air bearing shell, be successively set on from front to back the intracorporal dosing reaction zone of air bearing shell,
Contact zone of dissolved air flotation, the gentle float assembly pool in flotation separation zone, the dosing reaction zone is interior to be equipped at least one blender, the air bearing
Contact zone bottom is equipped with release, and Slag Scraping Device and collecting tank are equipped at the top of the flotation separation zone, and the release is molten by one
Air pump connects the bottom water outlet of air bearing gathering ground, and the water inlet of the dosing reaction zone connects raw water box by level-one elevator pump
Water outlet, the top delivery port of the air bearing gathering ground passes through pipeline and connects an air bearing water producing tank；
The carbon that the denitrification deep-bed filtration reactor includes reactor shell, is successively set in reactor enclosure body from top to bottom
Source reaction zone, quartz sand filler layer and supporting layer；The water inlet of the denitrification deep-bed filtration reactor is pumped by two-stage hoisting
The water outlet of air bearing water producing tank is connected, the water outlet of denitrification deep-bed filtration reactor connects modified activated carbon absorption by pipeline
The water inlet of tower；
The modified activated carbon adsorption tower includes the modified active layer of charcoal adsorbing tower shell and being arranged in absorption tower shell, described
Flusher, the water inlet of the water outlet connection filtered water tank of the modified activated carbon adsorption tower are equipped with above modified active layer of charcoal；
The chemicals dosing plant includes a carbon source for cooperating at least one dosing tank and cooperation carbon source reaction zone of dosing reaction zone
It adds case and cooperation dosing tank and carbon source adds the dosing pump of case.
2. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 1, it is characterised in that:
The quantity of the denitrification deep-bed filtration reactor and modified activated carbon adsorption tower is two, and two denitrification deep-bed filtrations are anti-
Device is answered to be connected in parallel, two modified activated carbon adsorption towers are connected in series.
3. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 1, it is characterised in that:
The quantity of the blender is two, be successively arranged in the air bearing shell from front to back first partition, second partition, third every
Plate, the 4th partition and the 5th partition, the first partition are located between two blenders, and the second partition is located at air bearing contact
In area, the third partition and the 4th partition are respectively positioned in flotation separation zone, and the 5th partition is located in air bearing gathering ground, institute
The bottom for stating first partition and third partition was equipped with the mouth of a river, and the top of the second partition and the 4th partition was equipped with the mouth of a river,
5th partition was equipped with the mouth of a river close to bottom side, the upper angled setting of the 4th partition, and the release is located at the
Between three partitions and the 4th partition.
4. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 2, it is characterised in that:
The water inlet of the denitrification deep-bed filtration reactor is located at the top of reactor shell, the water outlet of denitrification deep-bed filtration reactor
Mouth is located at reactor shell bottom, and the water inlet of the modified activated carbon adsorption tower is located at absorption tower shell side lower part, modified
The water outlet of activated carbon adsorber is located at absorption tower shell other side top.
5. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 4, it is characterised in that:
The processing system further includes the back purge system of a cooperation denitrification deep-bed filtration reactor, and the back purge system includes being used for
The air compressor machine of gas flushing and the flushing pump rinsed for water, the denitrification deep-bed filtration reactor bottom are equipped with backwash mouth,
The air compressor machine is separately connected the backwash mouth of two denitrification deep-bed filtration reactors, the flushing pump by gas flushing pipeline
Water inlet end connect filtered water tank, the water outlet of flushing pump is separately connected the anti-of two denitrification deep-bed filtration reactors by pipeline
Rinse mouth.
6. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 5, it is characterised in that:
The processing system further includes cooperating the charcoal circle irrigation system of modified activated carbon adsorption tower, two modified activated carbon adsorption tower difference
It is inhaled to be connected to the level-one modified activated carbon adsorption tower after denitrification deep-bed filtration reactor and being connected to level-one modified activated carbon
Second level modified activated carbon adsorption tower after attached tower, the charcoal circle irrigation system include rushing in modified activated carbon adsorption tower
Cleaning device, second level modified activated carbon absorption tower bottom and connection level-one modified activated carbon adsorption tower and second level modified activated carbon are inhaled
The charcoal circulating line of attached tower.
7. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 4, it is characterised in that:
On the control cabinet equipped with for acquire, detect all detection instrument analog signals and on-off model PLC controller with
And the touch screen for controlling equipment start-stop.
8. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 4, it is characterised in that:
It is equipped with the level gauge for controlling level-one elevator pump start and stop in the raw water box, is equipped in the filtered water tank and is rinsed for controlling
The level gauge of start and stop is pumped, the air bearing water producing tank is equipped with online determination of total nitrogen content instrument, and the two-stage hoisting pump and denitrification are deep
Electromagnetic flowmeter is equipped between bed filtration reactor, the denitrification deep-bed filtration reactor is equipped with online DO analyzer, institute
The control valve for stating denitrification deep-bed filtration reactor and modified activated carbon adsorption tower is motor-driven valve.
9. a kind of processing system for proposing mark transformation for sewage treatment plant tail water according to claim 4, it is characterised in that:
The quantity of the dosing tank is two, and two dosing tanks respectively correspond two blenders of dosing reaction zone, and the denitrification is deep
The reactive tank that cooperation carbon source adds case is equipped at the top of bed filtration reactor, the position of the reactive tank and denitrification deep-bed filtration are anti-
Answer the water inlet position of device corresponding.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108862929A (en) * | 2018-08-04 | 2018-11-23 | 浙江水美环保工程有限公司 | The processing system and its processing method of mark transformation are proposed for sewage treatment plant tail water |
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