CN208234718U - A kind of wastewater treatment equipment - Google Patents
A kind of wastewater treatment equipment Download PDFInfo
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- CN208234718U CN208234718U CN201820539542.XU CN201820539542U CN208234718U CN 208234718 U CN208234718 U CN 208234718U CN 201820539542 U CN201820539542 U CN 201820539542U CN 208234718 U CN208234718 U CN 208234718U
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- wastewater treatment
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- aerated filter
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Abstract
The utility model relates to a kind of wastewater treatment equipment, the wastewater treatment equipment includes: sequentially connected coagulative precipitation device, one stage catalyzing oxidation reactor, second level catalyst oxidation reactor, release device, biological aerated filter.The utility model uses coagulating sedimentation-catalytic ozonation-biological aerated filter integration mode, to improve ozone utilization rate, reduces processing cost, improves contaminant degradation rate.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipments, belong to industrial waste water treatment.
Background technique
In textile and dyeing industry production process, the process sections such as pretreatment, dyeing, stamp, decoloration, arrangement can be generated largely
Waste water, each process section waste water difference is larger, overall with organic pollutant content is big, biodegradability is poor, variation water quality is big, coloration
The features such as high.
The active charcoal absorption of currently used advanced treatment method for printing and dyeing wastewater, advanced oxidation, biological aerated filter and film
Method etc.；Wherein, ozone high grade oxidation method is because it is strong, easy to operate with organic matter removal ability, generates without chemical sludge, coloration
The advantages that removal efficiency is high is paid close attention to by sewage advanced treatment field.But individually using ozone high grade oxidation method to printing and dyeing
Waste water carry out advanced treating, ozone consumption is larger, low efficiency at high cost, it is difficult to effective practical application, organically by physico-chemical process,
Bioanalysis combination combination, is only the developing direction of dyeing waste water advanced treating.
CN106865911A is disclosed using physical-chemical-bioanalysis Combined Treatment waste water, enhances the denitrogenation function of system
Energy；However, it is directly aoxidized using Pre-Ozonation on Organic Matter, oxidation efficiency is lower, and system hydraulic detention time is longer.
CN104003478A discloses a kind of method of double section ozone-biological aerated filter combined treatment industrial wastewater.This method utilizes
Bioanalysis effectively reduces cost for wastewater treatment in conjunction with catalytic ozonation method, but its COD concentration that can handle waste water compared with
Low, there are some problems for practical application.
Utility model content
For current technology there are problem, the utility model, which provides one kind, can be used for advanced treatment apparatus for printing and dyeing wastewater.It should
Device uses coagulating sedimentation-catalytic ozonation-biological aerated filter integration mode, so that ozone utilization rate is improved, at reduction
Cost is managed, contaminant degradation rate is improved.
Technical solution described in the utility model is as follows.
A kind of wastewater treatment equipment, comprising: sequentially connected coagulative precipitation device, one stage catalyzing oxidation reactor, second level
Catalyst oxidation reactor, release device, biological aerated filter；
Wherein, the water outlet of the one stage catalyzing oxidation reactor is also connect with the water inlet conduit of the release device.
Further, the coagulative precipitation device includes medicine machine, pipeline mixing apparatus and mixing plant.The coagulation
The mud discharging mouth of settler is additionally provided with lateral, for connecting the sludge import of coagulative precipitation device.
Further, nanometer aeration disk is equipped in the one stage catalyzing oxidation reactor；The one stage catalyzing oxidation reaction
Equal filler particles shape filler in device and the second level catalyst oxidation reactor；The filler is different according to process object water quality and has
It is adjusted, such as when handling dyeing waste water, the complex solid catalyst of the preferred carried titanium dioxide of the filler, iron oxide.
Further, the release device is seal case, inside sets deflector, sludge pump etc..The release device is returned
Head piece is connect with coagulative precipitation device pipeline.
Further, haydite is filled in the biological aerated filter；The water outlet of the biological aerated filter respectively with water
Case, the connection of coagulative precipitation device pipeline；Water tank is additionally provided with backwash water outlet simultaneously, backwashes water outlet and biological aerated filter
Backwash water inlet pipeline be connected.
The biological aerated filter is additionally provided with air inlet, is connected with backwash Fan pipeline.
The utility model also provides the wastewater treatment method using above-mentioned apparatus, comprising: waste water is through coagulating sedimentation, catalysis oxygen
Change, ozone release, Air Exposure.
The wastewater treatment method is primarily adapted for use in that have the characteristics that COD content is higher, biochemical is poor, coloration is high useless
Water, if COD content is 200-400mg/L；Such as dyeing waste water.
The coagulating kinetics specifically: waste water is mixed with coagulant, pH adjusting agent, is mixed under the state that mixes slowly
Wadding body is formed, and is separated.
The coagulant, pH adjusting agent are the conventional dose that those skilled in the art are grasped.Wherein, the coagulant
Selected from one of bodied ferric sulfate, aluminium polychloride, polyaluminium sulfate, polyacrylamide, calcium hydroxide or a variety of.Specific choosing
Select can be according to waste water quality depending on.
The catalytic oxidation treatment specifically: waste water first passes through nanometer aeration, then mixes and carried out at catalysis oxidation with ozone
Reason；One stage catalyzing oxidation effluent quality is detected, if water quality meets the requirements, water outlet is directly entered ozone release process；If water quality
Undesirable, then ozone release process must be entered back into after second level catalytic oxidation treatment by being discharged.Waste water is in catalytic oxidation
Hydraulic detention time is 40-60min in device.
During the catalytic oxidation treatment, ozone is partially converted into hydroxyl radical free radical under the action of catalyst, and with
Remaining ozone cooperative aoxidizes persistent organic pollutants in waste water.The catalyst can be selected according to waste water quality situation
It selects.
The ozone release processing are as follows: also contain a small amount of ozone in the waste water after catalysis oxidation, waste water is subjected to ozone
Release processing, make wherein residual ozone further decompose, suspended matter precipitates again in waste water, sediment as flocculation core be back to
Coagulating sedimentation process.Waterpower residence time in release device is 60-70min.
The Air Exposure are as follows: waste water further removes organic matter by biological adsorption, decomposition, Physical entrapment effect；Through
After processing, a part of direct discharging of waste water, backwash water of another part waste water as biological aerated filter.Waterpower is being aerated
The biofilter residence time is 60-120min.
Compared with prior art, technical solution described in the utility model obtain it is following the utility model has the advantages that
1) the utility model uses front end coagulative precipitation device, and organic dirt in catalytic ozonation stage can be effectively reduced
Object load is contaminated, system entirety impact resistance is improved, reduces ozone dosage, reduces operating cost.
2) suitable catalyst is selected in the catalytic ozonation stage, the oxidability of ozone can be enhanced, urged to be promoted
Change the removal effect of oxidation stage organic matter.
3) the utility model is equipped with independent ozone release pond, by water conservancy stop or flow-shape in release pond, decomposes
Residual ozone is aoxidized, it is avoided to enter subsequent biological aerated filter, harm is generated to the microorganism of filler surface.Moreover, useless
Water can generate again a small amount of precipitating after ozone oxidation in ozone release pond, these precipitatings are back to the coagulating sedimentation stage, can
Flocculating effect is promoted as flocculation core, reduces added amount of chemical.
4) biological aerated filter operation is not necessarily to aerating system in the utility model.Not fully turn due to being used to prepare ozone
Ozone is turned to, remaining oxygen will enter system with ozone, thus can directly supply oxygen using the oxygen that front end adds, and save equipment
Cost and operating cost.The biological aerated filter effectively removes the biochemical organic matter that generation is aoxidized in waste water, and run at
This is low, reduces system unit COD on the whole and removes expense.
5) wastewater treatment equipment described in the utility model has that strong shock resistance, hydraulic detention time be shorter, water quality
The features such as wide adaptation range.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wastewater treatment equipment described in the utility model.
In figure: 1- coagulative precipitation device；2- ozone generating-device；The one stage catalyzing oxidation reactor of 3-；4- second level is catalyzed oxygen
Change reactor；5- release device；6- biological aerated filter；7- water tank；8- backwashes blower；9- dosing tank I；10- dosing tank II；
11- dosing tank III；12- mixes slowly machine；13- electromagnetic flowmeter；14- spinner flowmeter；15- nanometer aeration disk；16- water inlet
Pump；17- sludge pump；18- reflux pump；19- dosing metering pump I；20- dosing metering pump II；21- dosing metering pump III；22- recoil
Wash water pump.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
A kind of wastewater treatment equipment of embodiment 1
A kind of wastewater treatment equipment, comprising: sequentially connected coagulative precipitation device, one stage catalyzing oxidation reactor, second level
Catalyst oxidation reactor, release device, biological aerated filter；
Wherein, the water outlet of the one stage catalyzing oxidation reactor is also connect with the water inlet conduit of release device.
The coagulative precipitation device includes medicine machine, pipeline mixing apparatus and mixes slowly equipment.The coagulating sedimentation
The mud discharging mouth of device is additionally provided with the sludge import of lateral connection coagulative precipitation device.
Nanometer aeration disk is equipped in the one stage catalyzing oxidation reactor；The one stage catalyzing oxidation reactor and described two
Equal filler particles shape filler in grade catalyst oxidation reactor；The filler is different according to process object water quality and is adjusted, such as
When handling dyeing waste water, the complex solid catalyst of the preferred carried titanium dioxide of the filler, iron oxide.
The release device is seal case, inside sets deflector, sludge pump etc..The refluxing opening and coagulation of the release device
The connection of settler pipeline.
Haydite is filled in the biological aerated filter；The water outlet of the biological aerated filter is heavy with water tank, coagulation respectively
Shallow lake installs pipes connection；Water tank is additionally provided with backwash water outlet simultaneously, backwashes the backwash of water outlet and biological aerated filter
Water inlet conduit is connected.
The biological aerated filter is additionally provided with air inlet, is connected with backwash Fan pipeline.
A kind of wastewater treatment method of embodiment 2
A kind of wastewater treatment method, comprising: waste water is through coagulating sedimentation, catalysis oxidation, ozone release, Air Exposure.
The coagulating kinetics specifically: waste water is mixed with coagulant, pH adjusting agent, is mixed under the state that mixes slowly
Wadding body is formed, and is separated.
The coagulant, pH adjusting agent are the conventional dose that those skilled in the art are grasped.Wherein, coagulant is selected from
One of bodied ferric sulfate, aluminium polychloride, polyaluminium sulfate, polyacrylamide, calcium hydroxide are a variety of.
The catalytic oxidation treatment specifically: waste water first passes through nanometer aeration, then mixes and carried out at catalysis oxidation with ozone
Reason；One stage catalyzing oxidation effluent quality is detected, if water quality meets the requirements, water outlet is directly entered ozone release process；If water quality
Undesirable, then ozone release process must be entered back into after second level catalytic oxidation treatment by being discharged.Waste water is in catalytic oxidation
Hydraulic detention time is 40-60min in device.
Under the effect of the catalyst, a part of ozone is converted into hydroxyl radical free radical in water, with ozone cooperative by waste water
Middle persistent organic pollutants oxidation.
The ozone release processing are as follows: also contain a small amount of ozone in the waste water after catalysis oxidation, waste water is subjected to ozone
Release processing, makes wherein that residual ozone further decomposes, suspended matter precipitates again in waste water, and sediment is back to as the core that flocculates
Coagulating sedimentation process.Waterpower residence time in release device is 60-70min.
The Air Exposure are as follows: waste water further removes organic matter by biological adsorption, decomposition, Physical entrapment effect；Through
After processing, a part of direct discharging of waste water, backwash water of another part waste water as biological aerated filter.Waterpower is being aerated
The biofilter residence time is 60-120min.
The concrete application of 3 wastewater treatment equipment of embodiment
Jiangxi textile printing and dyeing plant effluent is handled using wastewater treatment equipment described in the utility model.
Factory's technique is coagulation-multistage A/O- secondary precipitation.
Waste water treatment step: secondary precipitation water outlet initially enters coagulative precipitation tank dosing coagulant, flocculation aid, coagulating sedimentation
Water outlet enters ozone catalytic oxidation unit, enters release device after carrying out advanced oxidation to organic pollutant, subsequently into aeration
Further pollutant is decomposed and retained in biofilter.
Actual test conditions are as follows: inflow 5L/h, and raw water CODCr=674mg/L, pH=6.9, coloration=128 times are urged
It is 50% that agent, which adds volume, and coagulative precipitation device medicament uses bodied ferric sulfate, cationic polyacrylamide, dosage difference
For 200mg/L, 2 ‰, ozone concentration 23.5mg/L, biological aerated filter backwashing period is 7d, biological aerated filter biofilm
Continuous processing 8d afterwards.
Waste water hydraulic detention time in catalyst oxidation reactor is 40-60min.Waterpower residence time in release device
For 60-70min.Waterpower is 60-120min in the biological aerated filter residence time.
It is as follows to be discharged average water quality indicator: CODCr=169mg/L, pH=7.2, coloration < 10 times, SS < 10mg/L.
And use coagulating sedimentation-ozone direct oxidation-BAF processing method: the ozone oxidation section processing time needs 60-
90min, the BAF residence time need 3h or more, it is reachable to be discharged average water quality indicator: CODCr≤200mg/L, pH=6-9, coloration < 10
Times, SS < 10mg/L.
The concrete application of 4 wastewater treatment equipment of embodiment
Certain textile printing and dyeing plant effluent is handled using wastewater treatment equipment described in the utility model.
Plant area's prior art is coagulation-biological fluidized bed-precipitating-air bearing.
Waste water treatment step: air bearing water outlet initially enters coagulative precipitation tank dosing coagulant, flocculation aid, coagulating sedimentation water outlet
Into ozone catalytic oxidation unit, enter release device after carrying out advanced oxidation to organic pollutant, subsequently into aeration and biological
Further pollutant is decomposed and retained in filter tank.
Actual test conditions are as follows: inflow 5L/h, and raw water CODCr=279mg/L, pH=6.2, coloration=64 times are urged
It is 60% that agent, which adds volume, and coagulative precipitation device medicament uses bodied ferric sulfate, cationic polyacrylamide, dosage difference
For 300mg/L, 2 ‰, ozone concentration 23.5mg/L, biological aerated filter backwashing period is 5d, biological aerated filter biofilm
Continuous processing 10d afterwards.
Waste water hydraulic detention time in catalyst oxidation reactor is 40-60min.Waterpower residence time in release device
For 60-70min.Waterpower is 60-120min in the biological aerated filter residence time.
It is as follows to be discharged average water quality indicator: CODCr=44.9mg/L, pH=6.9, coloration < 10 times, SS < 10mg/L.
And use existing conventional ozone oxidation-BAF treatment process, ozone oxidation section handle the time will 90min with
On, it is reachable to be discharged average water quality indicator: CODCr≤60mg/L, pH=6-9, coloration < 10 times, SS < 10mg/L.
Although above having made detailed description to the utility model with a general description of the specific embodiments,
But on the basis of the utility model, it can be made some modifications or improvements, this is aobvious and easy to those skilled in the art
See.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model
Claimed range.
Claims (10)
1. a kind of wastewater treatment equipment characterized by comprising sequentially connected coagulative precipitation device, one stage catalyzing oxidation are anti-
Answer device, second level catalyst oxidation reactor, release device, biological aerated filter；Wherein, the one stage catalyzing oxidation reactor go out
The mouth of a river is also connect with the water inlet conduit of the release device.
2. wastewater treatment equipment according to claim 1, which is characterized in that the coagulative precipitation device is set comprising dosing
Standby, pipeline mixing apparatus, mixing plant；
The mud discharging mouth of the coagulative precipitation device is additionally provided with lateral, for connect the sludge of coagulative precipitation device into
Mouthful.
3. wastewater treatment equipment according to claim 1, which is characterized in that be equipped in the one stage catalyzing oxidation reactor
Nanometer aeration disk；
Filler is filled in the one stage catalyzing oxidation reactor and the second level catalyst oxidation reactor.
4. wastewater treatment equipment according to claim 1 or 3, which is characterized in that the release device is seal case, interior
If deflector, sludge pump.
5. wastewater treatment equipment according to claim 1 or 3, which is characterized in that the refluxing opening of the release device and institute
State the connection of coagulative precipitation device pipeline.
6. wastewater treatment equipment according to claim 4, which is characterized in that the refluxing opening of the release device is mixed with described
Retrogradation shallow lake installs pipes connection.
7. wastewater treatment equipment according to claim 1 or 3, which is characterized in that the water outlet of the biological aerated filter
It is connect respectively with water tank, coagulative precipitation device pipeline；
Water tank is additionally provided with backwash water outlet simultaneously, backwashes the backwash water inlet pipeline phase of water outlet and biological aerated filter
Even.
8. wastewater treatment equipment according to claim 4, which is characterized in that the water outlet of the biological aerated filter is distinguished
It is connect with water tank, coagulative precipitation device pipeline；
Water tank is additionally provided with backwash water outlet simultaneously, backwashes the backwash water inlet pipeline phase of water outlet and biological aerated filter
Even.
9. wastewater treatment equipment according to claim 5, which is characterized in that the water outlet of the biological aerated filter is distinguished
It is connect with water tank, coagulative precipitation device pipeline；
Water tank is additionally provided with backwash water outlet simultaneously, backwashes the backwash water inlet pipeline phase of water outlet and biological aerated filter
Even.
10. wastewater treatment equipment according to claim 6, which is characterized in that the water outlet of the biological aerated filter point
It is not connect with water tank, coagulative precipitation device pipeline；
Water tank is additionally provided with backwash water outlet simultaneously, backwashes the backwash water inlet pipeline phase of water outlet and biological aerated filter
Even.
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|---|---|---|---|
| CN201820539542.XU CN208234718U (en) | 2018-04-16 | 2018-04-16 | A kind of wastewater treatment equipment |
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| CN201820539542.XU CN208234718U (en) | 2018-04-16 | 2018-04-16 | A kind of wastewater treatment equipment |
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| CN208234718U true CN208234718U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973662A (en) * | 2021-02-25 | 2021-06-18 | 中节能环保投资发展(江西)有限公司 | Method for preparing ozone catalyst by doping rare earth enrichment with excess sludge and application |
-
2018
- 2018-04-16 CN CN201820539542.XU patent/CN208234718U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973662A (en) * | 2021-02-25 | 2021-06-18 | 中节能环保投资发展(江西)有限公司 | Method for preparing ozone catalyst by doping rare earth enrichment with excess sludge and application |
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