CN211226716U - Coking wastewater advanced treatment system - Google Patents
Coking wastewater advanced treatment system Download PDFInfo
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- CN211226716U CN211226716U CN201921441308.4U CN201921441308U CN211226716U CN 211226716 U CN211226716 U CN 211226716U CN 201921441308 U CN201921441308 U CN 201921441308U CN 211226716 U CN211226716 U CN 211226716U
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Abstract
The utility model relates to a coking wastewater advanced treatment system belongs to industrial wastewater treatment technical field, specifically including the play water end of pre-oxidation treatment device to be connected with the lift tank through the pipeline, the delivery port of lift tank is connected with multi-media filter through the pipeline, the second elevator pump is installed to the delivery port of lift tank, multi-media filter's delivery port is connected with the water inlet of tube-to-tube mixer, tube-to-tube mixer's the mouth that adds medicine has acid storage tank and H through adding medicine pipe connection respectively2O2The storage tank, the dosing pipeline are provided with a dosing control valve, a flowmeter and the effluent of the pipeline mixerThe mouth is connected with light reaction unit's water inlet, and light reaction unit's delivery port is connected with the PH value equalizing basin, and the other alkali storage tank that is equipped with of PH value equalizing basin installs the pipeline of putting medicine of being connected with the PH value equalizing basin on the alkali storage tank, puts and installs on the medicine pipeline and put the medicine valve, the utility model discloses simple structure, processing convenience, the treatment effect is good.
Description
Technical Field
The utility model relates to a coking wastewater advanced treatment system belongs to industrial wastewater treatment technical field.
Background
The pollutants in the coking wastewater are various in types, high in concentration and high in toxicity, and COD and chromaticity are difficult to remove, so that the coking wastewater is typical refractory organic wastewater. After the coking wastewater is subjected to secondary biochemical treatment, COD and NH in the coking wastewater4 +The concentration of pollutants such as N, volatile phenol and the like is high, and the pollutants can cause great harm to human beings, aquatic products and crops. And the discharge amount of the wastewater of the coke-oven plant is large, and if the wastewater is directly discharged, the resource waste is inevitably caused to a great extent, so the zero discharge becomes the target of many chemical enterprises. In addition, the improvement of the current social environmental protection consciousness and the continuous enhancement of government to the supervision and management of environmental protection green production have more and more strict requirements on the discharge index of the produced wastewater in the production process, and how to carry out scientific advanced treatment and disposal on the coking wastewater with complex components, huge water amount and serious potential hazard to finally achieve the aims of harmlessness and reclamation becomes the focus of wide attention in the field of environmental engineering.
The current advanced treatment and recycling technology of coking wastewater is a combined technology of pretreatment and membrane separation. The pretreatment technology comprises advanced oxidation technology, oxidation and coagulation combination technology, coagulation adsorption coupling technology and the like. The membrane separation technology has the main problems of membrane pollution, and the membrane pollution can cause flux reduction or membrane pressure difference increase in the operation process, so that the treatment cost is increased. If the effluent of the chemical pretreatment is unstable and the COD of the effluent does not meet the requirement before entering the double-membrane treatment (the COD is less than 50mg/L and the chroma is less than 30 times), the membrane is seriously polluted to influence the service life of the membrane. The reverse osmosis system in the membrane separation method can also generate a certain amount of concentrated water, and the ultrafiltration and reverse osmosis systems need to be backwashed regularly, so that the operation is more frequent.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem that prior art exists, the utility model provides a coking wastewater deep treatment system with simple structure, convenient treatment and good treatment effect.
For realizing the above purpose, the utility model discloses a technical scheme who adopts is a coking wastewater advanced treatment system, including pre-oxidation treatment device, many media filter and light reaction unit, pre-oxidation treatment device's play water end is connected with lift tank through the pipeline, lift tank's delivery port is connected with many media filter through the pipeline, the second elevator pump is installed to lift tank's delivery port, many media filter's delivery port is connected with pipeline mixer's water inlet, pipeline mixer's the mouth that adds medicine has acid storage tank and H through adding medicine pipe connection respectively2O2The storage tank, install on the medicine pipeline and add medicine control valve and flowmeter, the delivery port of line mixer is connected with photoreaction device's water inlet, photoreaction device's delivery port is connected with the PH value equalizing basin, the other alkali storage tank that is equipped with of PH value equalizing basin, install on the alkali storage tank and put the medicine pipeline of being connected with the PH value equalizing basin, it puts the medicine valve to install on the medicine pipeline.
Preferably, the pre-oxidation treatment device mainly comprises a folded plate type pre-oxidation tank, a mixed reaction tank and a water collection tank, wherein a water inlet of the mixed reaction tank is connected with a water outlet pipeline of the water collection tank, a first lifting pump is installed on a water outlet of the water collection tank, a baffle is arranged in the mixed reaction tank, a flow passing port is formed in the lower portion of the baffle, stirrers are respectively installed on two sides of the baffle, a water outlet of the mixed reaction tank is connected with a water inlet of the folded plate type pre-oxidation tank, a water outlet groove is formed in a water outlet of the folded plate type pre-oxidation tank, a water outlet of the water outlet groove is connected with the lifting water tank, a baffle and a baffle plate are arranged in the folded plate type pre-oxidation tank, a sludge hopper is arranged at the bottom of the folded plate type pre-oxidation tank and connected with a sludge barrel, and an, the other end is provided with a sludge outlet.
Preferably, the light reaction device mainly comprises a reaction cylinder, a stainless steel hanger and an ultraviolet lamp, wherein a black coating is arranged on the inner wall of the reaction cylinder, one end of the reaction cylinder is connected with a water outlet of the pipeline mixer, the other end of the reaction cylinder is connected with a PH value regulating pool pipeline, the stainless steel hanger is fixed in the reaction cylinder, and the ultraviolet lamp is installed on the stainless steel hanger.
Preferably, the length of the ultraviolet lamp is 1000mm, the power is 60W, and the wave band is 185-295 nm.
Compared with the prior art, the utility model discloses following technological effect has: the utility model discloses a mixed reaction method is at first handled the second grade play water, later directly gets into the pre-oxidation treatment device. At this time, most of macromolecular organic matters in the wastewater are degraded into micromolecular substances, and the chromaticity, COD, suspended matters (SS), turbidity and the like of the wastewater are greatly reduced. Then the wastewater enters a multi-media filter to further remove COD, SS and the like in the wastewater. The waste water then enters the photoreactor through a line mixer, the UV lamp being the main component of the photoreactor, H2O2Under the irradiation of an ultraviolet lamp, hydroxyl free radicals can be generated, so that small molecular organic matters in the wastewater are further oxidized and degraded, and the degradation effect of the organic matters is optimal under an acidic condition. COD of the effluent of the system is less than or equal to 48mg/L, and SS is less than or equal to 6 mg/L. The wastewater finally enters a pH adjusting tank for pH adjustment, and the final water quality can meet the water quality requirement of reclaimed water used as make-up water of an indirect cooling open system in the design Specification for industrial circulating cooling water treatment (GBT50050-2017), so that the water resource can be greatly saved, and the economic and environmental-friendly benefits are good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural view of the photoreaction apparatus of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, a coking wastewater advanced treatment system, including pre-oxidation treatment device 1, many media filter 2 and light reaction unit 3, the play water end of pre-oxidation treatment device 1 is connected with lift tank 4 through the pipeline, the delivery port of lift tank 4 is connected with many media filter 2 through the pipeline, second elevator pump 5 is installed to the delivery port of lift tank 4, the delivery port of many media filter 2 is connected with the water inlet of tube mixer 6, the mouth that adds of tube mixer 6 is connected with acid storage tank 7 and H through adding medicine pipeline 9 respectively and stores up acid tank 7 and H2O2 Storage tank 8 is installed on adding medicine pipeline 9 and is added medicine control valve 10 and flowmeter 11, and the delivery port of line mixer 6 is connected with photoreaction device 3's water inlet, and photoreaction device 3's delivery port is connected with pH value equalizing basin 12, and the other alkali storage tank 13 that is equipped with of pH value equalizing basin 12 is installed on alkali storage tank 13 and is put medicine pipeline 14 with pH value equalizing basin 12 is connected, puts and installs on the medicine pipeline 14 and put medicine valve 15.
The utility model discloses when using, coking wastewater advances to go into in the pre-oxidation treatment device 1 and carries out the coagulating sedimentation separation, separates out mud, then in waste water gets into lifting water box 4 through gravity, rethread second elevator pump 5 carries waste water to medium filter 2 in, and medium filter 2's material is carbon steel anticorrosive, and inside sets up the filler, and the purpose is COD and SS in order to reduce waste water. The filtered waste water enters a pipeline mixer 6 and passes through an acid storage tank 7 and H2O2And the storage tank 8 is used for adding a certain amount of hydrochloric acid and hydrogen peroxide into the pipeline mixer 6, and the pipeline mixer can uniformly mix the hydrochloric acid, the hydrogen peroxide and the wastewater, so that the subsequent treatment is facilitated. After the mixed wastewater enters the light reaction device 3, the H2O2 can generate hydroxyl radicals under the irradiation of an ultraviolet lamp, so that small molecular organic matters in the wastewater are further oxidized and degraded, and the degradation effect of the organic matters is optimal under an acidic condition. COD of the effluent of the system is less than or equal to 48mg/L, and SS is less than or equal to 6 mg/L. The wastewater finally enters a pH adjusting tank for pH adjustment, and the final water quality can meet the water quality requirement of reclaimed water used as make-up water of an indirect cooling open system in the design Specification for industrial circulating cooling water treatment (GBT50050-2017), so that the water resource can be greatly saved, and the economic and environmental-friendly benefits are good.
Wherein, the pre-oxidation treatment device 1 mainly comprises a folded plate type pre-oxidation tank 16, a mixed reaction tank 17 and a water collecting tank 18, a water inlet of the mixed reaction tank 17 is connected with a water outlet pipeline of the water collecting tank 18, a first lift pump 19 is arranged on a water outlet of the water collecting tank 18, a baffle plate 20 is arranged in the mixed reaction tank 17, a flow passing port 21 is arranged at the lower part of the baffle plate 20, stirrers 22 are respectively arranged at two sides of the baffle plate 20, a water outlet of the mixed reaction tank 17 is connected with a water inlet of the folded plate type pre-oxidation tank 16, a water outlet groove 23 is arranged at a water outlet of the folded plate type pre-oxidation tank 16, a water outlet of the water outlet groove 23 is connected with a lifting water tank 4, a baffle plate 24 and a baffle plate 25 are arranged in the folded plate type pre-oxidation tank 16, a sludge hopper 27 is arranged at the bottom of the folded plate type pre-, the other end is provided with a mud outlet 30.
When the device is used, the effluent of the secondary sedimentation tank overflows into the water collecting tank 18, the water outlet pipeline of the water collecting tank 18 is connected with a first lifting pump 19, and the wastewater enters the mixing reaction tank 17 through the first lifting pump 19. The mixing reaction tank is internally provided with a stirrer, so that the medicament and the wastewater are fully mixed. Mix the built-in baffle of reaction tank, through the baffle overflow mouth 21 get into the opposite side, carry out the secondary stirring through the agitator, mix more evenly, waste water after mixing gets into in the folded plate formula pre-oxidation pond, sets up baffle and baffling board in the folded plate formula pre-oxidation pond, and the purpose that sets up baffle and folded plate carries out the water conservancy to waste water and mixes, makes waste water and medicament carry out the intensive mixing reaction. The water outlet is arranged on the upper part of the tank, the bottom of the tank is provided with a sludge hopper and a sludge cylinder, and after the sludge enters the sludge cylinder, the sludge is discharged from the sludge outlet through the electric push rod.
As shown in fig. 2, the light reaction device 3 mainly comprises a reaction cylinder 31, a stainless steel hanger 32 and an ultraviolet lamp 33, wherein the inner wall of the reaction cylinder 31 is provided with a black coating, one end of the reaction cylinder 31 is connected with a water outlet of the pipeline mixer 6, the other end of the reaction cylinder 31 is connected with the PH value adjusting tank 12 through a pipeline, the stainless steel hanger 32 is fixed in the reaction cylinder 31, and the ultraviolet lamp 33 is installed on the stainless steel hanger 32. Under acidic conditions, H2O2Under the irradiation of an ultraviolet lamp, hydroxyl free radicals can be generated, and COD in the wastewater is further oxidized and degraded. The reaction cylinder is made of acid-resistant, radiation-resistant and corrosion-resistant epoxy glass fiber reinforced plastics and is arranged in the cylinderThe black coating is added to block the transmission of ultraviolet light. The length of the ultraviolet lamp tube is 1000mm, the power is 60W, and the wave band is 185-295 nm.
The foregoing is considered as illustrative and not restrictive of the preferred embodiments of the invention, and any modifications, equivalents and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (4)
1. The coking wastewater advanced treatment system is characterized in that: including pre-oxidation treatment device, multi-media filter and light reaction unit, pre-oxidation treatment device's play water end is connected with the lift water tank through the pipeline, the delivery port of lift water tank is connected with multi-media filter through the pipeline, the second elevator pump is installed to the delivery port of lift water tank, multi-media filter's delivery port is connected with pipeline mixer's water inlet, pipeline mixer's the mouth that adds medicine is connected with acid storage tank and H through adding medicine pipe connection respectively2O2The storage tank, install on the medicine pipeline and add medicine control valve and flowmeter, the delivery port of line mixer is connected with photoreaction device's water inlet, photoreaction device's delivery port is connected with the PH value equalizing basin, the other alkali storage tank that is equipped with of PH value equalizing basin, install on the alkali storage tank and put the medicine pipeline of being connected with the PH value equalizing basin, it puts the medicine valve to install on the medicine pipeline.
2. The coking wastewater advanced treatment system according to claim 1, characterized in that: the pre-oxidation treatment device mainly comprises a folded plate type pre-oxidation tank, a mixed reaction tank and a water collecting tank, the water inlet of the mixing reaction tank is connected with the water outlet pipeline of the water collecting tank, the water outlet of the water collecting tank is provided with a first lift pump, a baffle is arranged in the mixing reaction tank, the lower part of the baffle is provided with a flow through port, two sides of the baffle are respectively provided with a stirrer, the water outlet of the mixed reaction tank is connected with the water inlet of the folded plate type pre-oxidation tank, the water outlet of the folded plate type pre-oxidation tank is provided with a water outlet groove, the water outlet of the water outlet groove is connected with a lifting water tank, a baffle plate and a baffle plate are arranged in the folded plate type pre-oxidation tank, the bottom of the folded plate type pre-oxidation tank is provided with a sludge hopper which is connected with a sludge barrel, an electric push rod and a mud pushing plate are installed at one end of the mud barrel, and a mud outlet is formed in the other end of the mud barrel.
3. The coking wastewater advanced treatment system according to claim 1, characterized in that: the light reaction device mainly comprises a reaction cylinder, a stainless steel hanger and an ultraviolet lamp, wherein a black coating is arranged on the inner wall of the reaction cylinder, one end of the reaction cylinder is connected with a water outlet of a pipeline mixer, the other end of the reaction cylinder is connected with a PH value adjusting pool pipeline, the stainless steel hanger is fixed in the reaction cylinder, and the ultraviolet lamp is installed on the stainless steel hanger.
4. The coking wastewater advanced treatment system according to claim 3, characterized in that: the length of the lamp tube of the ultraviolet lamp is 1000mm, the power is 60W, and the wave band is 185-295 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441308.4U CN211226716U (en) | 2019-09-02 | 2019-09-02 | Coking wastewater advanced treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441308.4U CN211226716U (en) | 2019-09-02 | 2019-09-02 | Coking wastewater advanced treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211226716U true CN211226716U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921441308.4U Active CN211226716U (en) | 2019-09-02 | 2019-09-02 | Coking wastewater advanced treatment system |
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|---|---|
| CN (1) | CN211226716U (en) |
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- 2019-09-02 CN CN201921441308.4U patent/CN211226716U/en active Active
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Address after: 030024 No. 3, East First Lane, Houwang Street, Wanbailin District, Taiyuan City, Shanxi Province Patentee after: Shanghai Electric Group guokong Global Engineering Co.,Ltd. Address before: 030024 No. 3, East First Lane, Houwang Street, Wanbailin District, Taiyuan City, Shanxi Province Patentee before: SHANXI GUOKONG GLOBE ENGINEERING Co.,Ltd. |