CN208562075U - Ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system - Google Patents
Ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system Download PDFInfo
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- CN208562075U CN208562075U CN201820928705.3U CN201820928705U CN208562075U CN 208562075 U CN208562075 U CN 208562075U CN 201820928705 U CN201820928705 U CN 201820928705U CN 208562075 U CN208562075 U CN 208562075U
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Abstract
The utility model provides a kind of system of ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater, including coagulation reaction tank, coagulative precipitation tank, intermediate pool, more medium filter, ozone-oxidizing device, ozone produce pond, the filter tank BAC, BAC production pond, composite catalytic oxidation device, discharge pond；Coagulation reaction tank, coagulative precipitation tank, intermediate pool, more medium filter, ozone-oxidizing device, ozone production pond, the filter tank BAC, BAC production pond, composite catalytic oxidation device, discharge pond are sequentially communicated by pipeline；The water outlet of the utility model can direct emission；Advanced water treatment can not discharge when condition is permitted, use for the raw water of intermediate water reuse system or as recirculated cooling water, to realize Zero-discharge coked wastewater, saved water resource, reduce the discharge of pollutant.
Description
Technical field
The utility model relates to a kind of processing unit of coking wastewater and the processing methods of coking wastewater, more particularly to one kind
Ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system.
Background technique
In recent years, a large amount of work has been done to coking wastewater deep treatment both at home and abroad, traditional water treatment technology has been directed to
Coking wastewater has carried out adaptability reform and combination, has played the efficiency of the technologies such as biochemistry, advanced oxidation to the maximum extent, obtains
Certain achievement.Currently, specifically including that coagulant sedimentation, Fenton reagent oxidation, O3 to the further treatment technique of coking wastewater
Oxidation.
Coagulant sedimentation: the coagulant that the advanced treating of traditional coking wastewater is selected has aluminium polychloride, bodied ferric sulfate
Deng, also there is part company to develop coking wastewater specific complex flocculant, the sewage after handling coking wastewater biochemical treatment, water outlet
COD is in 120-150mg/L, COD removal rate 40-60%.It is light yellow for being discharged on sense organ still.
Fenton reagent method is using hydrogen peroxide as oxidant, using ferrous salt as the homogeneous catalytic oxidation method of catalyst.
Fenton reagent is a kind of strong oxidizer, and the OH generated in reaction is a kind of very strong free radical of oxidability, can oxidized waste water
Middle organic matter, to reduce the coloration and COD value of waste water.There is studies have shown that be added in the coking wastewater after biochemical treatment
Fenton reagent also has good COD removal rate.Disadvantage are as follows: 1) a large amount of inorganic ions, the reuse difficulty of water are introduced in water
Further increase；2) Fenton reagent additional amount needs strict control, because the characteristics of coking wastewater is that influent quality fluctuation is larger,
Practical operation difficulty is larger；3) a large amount of sludge is generated, the loss of sludge treatment facilities investment and operating cost is increased, forms two
Secondary solid waste pollutant.
Ozone is a kind of strong oxidizer, can react rapidly, can remove in waste water with organic matters most of in waste water, microorganism
The pollutants such as phenol, cyanogen, and reduce its COD, BOD value, while may also function as the effect of decoloration, deodorization, sterilization.It is useless to handle coking
Aquaticization treated sewage is discharged COD in 80-150mg/L, COD removal rate 50% or so.Ozone is a kind of efficiently clean
Oxidant, but wastewater treatment process whole process carries out oxidation processes using ozone generator, and power consumption is big, and utilization rate is low, capital cost
With height, and ozone-oxidizing device ozone utilization rate in the prior art is low.
Utility model content
Purpose of utility model: the purpose of this utility model is that in view of the deficiencies of the prior art, providing a kind of ozone oxidation-
BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system.BAC, Chinese name biological activated carbon are a kind of sewage plants
Sewage disposal technology.
Technical solution: in order to reach above-mentioned purpose of utility model, the utility model is such completion: ozone oxidation-
BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system, including coagulation reaction tank, coagulative precipitation tank, intermediate water
Pond, more medium filter, ozone-oxidizing device, ozone produce pond, the filter tank BAC, BAC production pond, composite catalytic oxidation device, row
Discharge water pond；Coagulation reaction tank, coagulative precipitation tank, intermediate pool, more medium filter, ozone-oxidizing device, ozone produce pond,
The filter tank BAC, BAC production pond, composite catalytic oxidation device, discharge pond are sequentially communicated by pipeline.
It further, further include sludge concentration tank, coagulative precipitation tank is equipped with sludge outlet and sludge concentration tank passes through pipeline
It is connected.
It further, further include backwash blowoff basin and backwash water sedimentation basin, more medium filter and the filter tank BAC are equipped with instead
Wash water import and backwash water out, more medium filter backwash water inlet, the filter tank BAC backwash water inlet pass through respectively pipeline and
BAC produces pond connection, and more medium filter backwash water out and the filter tank BAC backwash water out pass through pipeline and be passed through backwash draining
Pond, backwash blowoff basin and backwash water sedimentation basin and intermediate pool are sequentially communicated.
Further, the composite catalytic oxidation device, including oxidation tower shell, the oxidizing tower case top are equipped with smelly
Oxygen exhaust port, oxidizing tower upper part of the housing side wall are equipped with wastewater inlet, and oxidizing tower lower part of the housing side wall goes out equipped with sewage
Mouth and ozone gas import, and ozone gas import is higher than outlet of sewer, and catalyst zone and gas cutting are equipped in the shell
Component area, catalyst zone are arranged above gas cutting assembly area, if gas cutting assembly area by glass reinforced plastic grate and
Dry polyhedron empty ball composition, polyhedron empty ball are placed in above glass reinforced plastic grate, and catalyst zone is by sieve and ozone catalyst
Composition, ozone catalyst are placed on sieve.
The utility model has the beneficial effects that the utility model has the advantages that compared with traditional technology
1, this technique can realize automatic operation control, and easy to operate, occupied area is small, can be in original biological treatment
On the basis of be transformed；
2, water outlet can direct emission processing；When condition is permitted, full station-service water spot and membranous system treatment facility are comprehensively considered, it is deep
Degree processing water can not discharge, and use for the raw water of intermediate water reuse system or as recirculated cooling water, to realize that coking is useless
Water zero discharge has saved great lot of water resources, and greatly reduces the discharge of pollutant, reaches waste reclamation, energy conservation subtracts
The purpose of row has good environmental benefit, Social benefit and economic benefit, meets national Developing Circulation Economy and water-saving
The target of consumption reduction；
3, the ozone-oxidizing device gas cutting assembly in the utility model realizes ozone and mixes with the efficient of waste water, mentions
The high utilization rate of ozone, and waste water and ozone convection current operation, substantially increase the reaction rate of ozone and pollutant, effectively drop
Low processing cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of embodiment 1.
Specific embodiment
Embodiment 1: as shown in Figure 1, ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater is
System, including coagulation reaction tank 1, coagulative precipitation tank 2, intermediate pool 3, more medium filter 4, ozone-oxidizing device 5, ozone produce water
Pond 6, the filter tank BAC 7, BAC produce pond 8, composite catalytic oxidation device 9, discharge pond 10, sludge concentration tank 11, backwash blowoff basin
12, backwash water sedimentation basin 13；Coagulation reaction tank 1, coagulative precipitation tank 2, intermediate pool 3, more medium filter 4, ozone oxidation dress
Set 5, ozone produce pond 6, the filter tank BAC 7, BAC produce pond 8, composite catalytic oxidation device 9, discharge pond 10 by pipeline successively
Connection；Coagulative precipitation tank 2 is equipped with sludge outlet and is connected with sludge concentration tank 11 by pipeline；More medium filter 4 and BAC filter
Pond 7 is equipped with backwash water inlet and backwash water out, 4 backwash water inlet of more medium filter, 7 backwash water inlet of the filter tank BAC point
Not Tong Guo pipeline and BAC produce pond 7 and be connected to, 4 backwash water out of more medium filter and 7 backwash water out of the filter tank BAC pass through
Pipeline is passed through backwash blowoff basin, backwash blowoff basin 12 and backwash water sedimentation basin 13 and intermediate pool 3 is sequentially communicated.Composite catalyzing oxygen
Makeup is set including aoxidizing tower shell, and oxidizing tower case top is equipped with ozone tail gas discharge outlet, sets on the side wall of oxidizing tower upper part of the housing
There is wastewater inlet, oxidizing tower lower part of the housing side wall is equipped with outlet of sewer and ozone gas import, and ozone gas import is higher than
Outlet of sewer, shell is interior to be equipped with catalyst zone and gas cutting assembly area, and catalyst zone is arranged above gas cutting assembly area,
Gas cutting assembly area is made of glass reinforced plastic grate and several polyhedron empty balls, and polyhedron empty ball is placed in glass reinforced plastic grate
Top, catalyst zone are made of sieve and ozone catalyst, and ozone catalyst is placed on sieve.
Embodiment 2: waste water enters the mixing section of coagulation reaction tank 1, molten in this dosing coagulant PAC (aluminium polychloride)
The dosage of liquid, PAC is 20kg/ kiloton waste water, and under the stirring of mixing and blending machine, water inlet is mixed in PAC solution 30 minutes
Uniformly, it is added flocculation aid PAM (polyacrylamide) in the water outlet of coagulation reaction tank 1, the dosage of PAM is useless for 30kg/ kiloton
Water, the suspended matter in waste water forms biggish floccule body under the action of flocculation aid, and to separate from waste water, waste water is through mixed
Solidifying 1 outlet conduit of reaction tank flows automatically to coagulative precipitation tank 2 and carries out mud-water separation, and after sludge and water completes separation, coagulation is sunk
For 2 sludge of shallow lake pond by being pumped into materialized mud concentration basin concentration, separation water outlet is discharged into intermediate pool 3, the water of intermediate pool 3 by
Pressurization pumping at most medium filter 4, more medium filter 4 is provided with of different sizes, diverse filtrate, from top to bottom,
Ascending to be arranged successively, when water flows through filtering layer from above, the solid suspension of water part enters the micro- of upper layer filtrate formation
Small perforations are retained by absorption and mechanical detention effect by filter material surface layer；Meanwhile between these suspended matters for being trapped again
The effects of overlapping and building bridge just looks like to form thin film on filtering layer surface, continued the suspended material in drainage, this is
Filter material surface filtering is known as membrane filtration；When water enters intermediate filtering layer since filtrate is closely aligned each other, in water
Suspended matter is again using permeation filtration, when the thinner suspended matter in water passes through those curved ducts of filter material layer, just has more
Chance and time mutually collide and contact with filter material surface, then particle surface and floccule body phase of the suspended matter in water in filtrate
Mutually adherency just can guarantee that (silt density refers to for the SDI value of water outlet to be in contact coagulation process in this way after triple filter
Number), after layering, it is discharged after filtering out the suspended material in water.More medium filter 4 is discharged waste water and enters ozone-
BAC(biological activated carbon) process integration, which is will be one associated with the effect of the absorption degradation of ozone oxidation and biological activated carbon
Kind method, this technique contain ozonization, chemical oxidation, physical absorption and biodegrade, which initially enters ozone
Oxidation unit 5 carries out ozone pre-oxidation effect, and after the oxidation water outlet of ozone-oxidizing device 5 is discharged into ozone production pond 6, ozone produces pond
6 water enters back into the filter tank BAC 7, and the water outlet of the filter tank BAC 7 is discharged into BAC and produces pond 8, ozone preliminary oxidation decompose organic matter in water and
Other reducing substances reduce the organic loading of biological activated carbon filter, while ozone oxidation can make to be difficult to biodegrade in water
Organic matter chain rupture, open loop, be converted to simple aliphatic hydrocarbon, change its biochemical characteristic；Ozone can be by certain nocuousness in addition to itself
Oxidation operation becomes outside harmless object, in the organic matter that can also objectively increase small molecule, obtains the adsorption function of active carbon
It is played to better；Active carbon can promptly adsorb the dissolved organic matter in water, at the same also can enriched microorganism, make its table
Face can grow good biomembrane, and by the oxygenation of itself, the microorganism in charcoal bed can be big by nutriment of organic matter
Growth and breeding aerobic organism is measured, causes the small organic molecule of activated carbon adsorption sufficiently biodegradable；Ozone-BAC(bioactivity
Charcoal) process integration can be effectively removed organic matter and ammonia nitrogen in water, to inorganic reduction substance, coloration, the turbidity in water
Also there is good removal effect.Finally, BAC is produced the waste water in pond 8 from composite catalytic oxidation device oxidizing tower upper part of the housing side
Wastewater inlet on wall enters, the water distributor water distribution uniformity on 9 device top of combined oxidation catalytic tower, and ozone is under oxidation tower shell
Ozone gas import on portion's side wall enters, waste water and ozone convection current operation, ozone successively from by gas cutting assembly area, urge
Agent area and waste water carry out hybrid reaction, are fixed under supported catalyst effect, Organic Pollutants in Wastewater oxidation point
Solution, phenyl ring, the open loop of heterocycle type organic, chain rupture, macromolecular compound are oxidized to small molecule acids, alcohol compound, and part is small
Molecule is oxidized to carbon dioxide and water into one.The COD value in waste water is greatly reduced in the process of catalysis oxidation, and color moves back substantially
To the greatest extent, COD removal rate is up to 30~50%.Ozone tail gas after reaction is discharged from ozone tail gas discharge outlet, and waste water is arranged from outlet of sewer
Out, it is discharged into discharge pond.Ozone is made by ozone generator, and the compressed air in air accumulator is passed through ozone generator system
Standby ozone, cooling water system cools down ozone generator during preparing ozone, the coolant water temperature in cooling water system
Degree is 5-32 degree.In the process of running, it is periodically recoiled to more medium filter 4 and the filter tank BAC 7 with the water that BAC produces pond 8
It washes, backwash water outlet is discharged into backwash blowoff basin 12, then the water of backwash blowoff basin 12 is entered backwash water sedimentation basin 13 and is precipitated
The sludge of backwash water sedimentation basin 13 is carried out concentration by being pumped into sludge concentration tank 11 after muddy water is completely separated by separation,
The separation water outlet of backwash water sedimentation basin 13 is back to intermediate pool 3.
Claims (4)
1. ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system, which is characterized in that including coagulation
Reaction tank, coagulative precipitation tank, intermediate pool, more medium filter, ozone-oxidizing device, ozone produce pond, the filter tank BAC, BAC production
Pond, composite catalytic oxidation device, discharge pond；It is coagulation reaction tank, coagulative precipitation tank, intermediate pool, more medium filter, smelly
Oxygen oxidation unit, ozone production pond, the filter tank BAC, BAC production pond, composite catalytic oxidation device, discharge pond pass through pipeline successively
Connection.
2. the system of ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater according to claim 1,
It is characterized in that, further including sludge concentration tank, coagulative precipitation tank is equipped with sludge outlet and is connected with sludge concentration tank by pipeline.
3. the system of ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater according to claim 1,
It is characterized in that, further include backwash blowoff basin and backwash water sedimentation basin, more medium filter and the filter tank BAC be equipped with backwash water into
Mouth and backwash water out, more medium filter backwash water inlet, the filter tank BAC backwash water inlet pass through pipeline respectively and BAC produces water
Pond connection, more medium filter backwash water out and the filter tank BAC backwash water out pass through pipeline and are passed through backwash blowoff basin, backwash
Blowoff basin and backwash water sedimentation basin and intermediate pool are sequentially communicated.
4. the system of ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater according to claim 1,
It is characterized in that, the composite catalytic oxidation device, including oxidation tower shell, the oxidizing tower case top are equipped with ozone tail gas
Discharge outlet, oxidizing tower upper part of the housing side wall are equipped with wastewater inlet, and oxidizing tower lower part of the housing side wall is equipped with outlet of sewer and smelly
Oxygen-containing gas inlet, and ozone gas import is higher than outlet of sewer, is equipped with catalyst zone and gas cutting assembly area in the shell,
Catalyst zone is arranged above gas cutting assembly area, and gas cutting assembly area is empty by glass reinforced plastic grate and several multi-panels
Bulbus cordis composition, polyhedron empty ball are placed in above glass reinforced plastic grate, and catalyst zone is made of sieve and ozone catalyst, ozone
Catalyst is placed on sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820928705.3U CN208562075U (en) | 2018-06-15 | 2018-06-15 | Ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820928705.3U CN208562075U (en) | 2018-06-15 | 2018-06-15 | Ozone oxidation-BAC filtering-composite catalytic oxidation advanced treatment on coking wastewater system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658393A (en) * | 2018-06-15 | 2018-10-16 | 无锡容大环境科技有限公司 | The system and its processing method of ozone oxidation-BAC filterings-composite catalytic oxidation advanced treatment on coking wastewater |
| CN110217921A (en) * | 2019-07-22 | 2019-09-10 | 鸿灌环境技术有限公司 | A kind of groundwater remediation optimization method |
| CN113735304A (en) * | 2021-04-24 | 2021-12-03 | 闫韶娟 | Coke quenching waste water ozone catalytic oxidation device |
-
2018
- 2018-06-15 CN CN201820928705.3U patent/CN208562075U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658393A (en) * | 2018-06-15 | 2018-10-16 | 无锡容大环境科技有限公司 | The system and its processing method of ozone oxidation-BAC filterings-composite catalytic oxidation advanced treatment on coking wastewater |
| CN110217921A (en) * | 2019-07-22 | 2019-09-10 | 鸿灌环境技术有限公司 | A kind of groundwater remediation optimization method |
| CN113735304A (en) * | 2021-04-24 | 2021-12-03 | 闫韶娟 | Coke quenching waste water ozone catalytic oxidation device |
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