CN112159029A - Device and method for treating coking wastewater - Google Patents
Device and method for treating coking wastewater Download PDFInfo
- Publication number
- CN112159029A CN112159029A CN202010936417.4A CN202010936417A CN112159029A CN 112159029 A CN112159029 A CN 112159029A CN 202010936417 A CN202010936417 A CN 202010936417A CN 112159029 A CN112159029 A CN 112159029A
- Authority
- CN
- China
- Prior art keywords
- reactor
- coking wastewater
- water
- denitrification
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 52
- 238000004939 coking Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims description 20
- 238000011001 backwashing Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000009303 advanced oxidation process reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 231100000086 high toxicity Toxicity 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- -1 polycyclic aromatic compounds Chemical class 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
In one aspect, the present invention provides an apparatus (100) for treating coking wastewater, comprising: an ozone generation system (4); the air outlet of the ozone generation system (4) and the water outlet of the raw water storage tank (1) are respectively connected with the air inlet and the water inlet of the hypergravity reactor (2); the water outlet of the supergravity reactor (2) is connected with the water inlet of the buffer water tank (3); the water outlet of the buffer water storage tank (3) of the denitrification reactor (5) is connected to a water inlet system (10) of the denitrification reactor (5). In another aspect, the invention provides a method for treating coking wastewater. The device (100) and the method for treating the coking wastewater can realize the deep treatment of the coking wastewater.
Description
Technical Field
The application relates to the field of wastewater treatment, in particular to a device and a method for treating coking wastewater.
Background
The coking wastewater is typical toxic refractory organic wastewater and has the characteristics of complex composition, high toxicity and serious pollution. The wastewater contains a large amount of mainly monocyclic or polycyclic aromatic compounds such as phenol, naphthalene, pyridine and quinoline and heterocyclic organic pollutants containing nitrogen, sulfur and oxygen in addition to inorganic compounds such as total nitrogen, sulfide and cyanide, and is one of the industrial wastewater difficult to treat.
In the industry, pretreatment, biochemical treatment and advanced treatment are mostly selected for common treatment of coking wastewater, but as the coking wastewater has complex components, is mostly heterocyclic aromatic hydrocarbon organic pollutants and has the characteristic of poor biodegradability, after pretreatment and biochemical treatment, the Chemical Oxygen Demand (COD) and total nitrogen indexes still hardly reach the discharge standard and the recycling standard, and the advanced treatment process inevitably becomes a main choice.
Disclosure of Invention
In order to solve the above problems, an embodiment of the present application provides, in one aspect, an apparatus for treating coking wastewater, including: an ozone generating system; the air outlet of the ozone generation system and the water outlet of the raw water storage tank are respectively connected with the air inlet and the water inlet of the hypergravity reactor; the water outlet of the super-gravity reactor is connected with the water inlet of the buffer water storage tank; the water outlet of the buffer water storage tank of the denitrification reactor is connected to the water inlet system of the denitrification reactor.
According to the embodiment of the application, the pipeline sets up between gas outlet and air inlet, between each delivery port and corresponding water inlet or the water intake system in order to realize connecting.
According to the embodiment of the application, the water inlet system is connected with a water backwashing system of the denitrification reactor, which is positioned at the bottom, and the water outlet channel of the denitrification reactor is positioned at the top of the denitrification reactor.
According to the embodiment of the application, the gas backwashing system of the denitrification reactor is positioned at the bottom of the denitrification reactor and is connected with the outlet of the aeration fan through a pipeline.
According to the embodiment of the application, a first liquid flow meter is arranged between the raw water storage tank and the hypergravity reactor, and a second liquid flow meter is arranged between the buffer water storage tank and the denitrification reactor.
According to the embodiment of the application, an ozone concentration detector is arranged between the ozone generation system and the hypergravity reactor.
According to the embodiment of the application, be provided with temperature detector in the buffer water storage tank.
According to an embodiment of the application, the high-gravity reactor comprises an air outlet located above the water outlet of the high-gravity reactor.
Another aspect of the present application provides a method of treating coking wastewater, an apparatus for treating coking wastewater using any one of the above, comprising: the ozone generation system and the raw water storage tank respectively input the coking wastewater and ozone after biochemical treatment to the hypergravity reactor, and the ozone and the coking wastewater carry out mass transfer and reaction in the hypergravity reactor;
liquid obtained after the reaction of the ozone and the coking wastewater enters a buffer water storage tank;
and pumping the reacted liquid in the buffer water storage tank into a water inlet system of the denitrification reactor.
According to the embodiment of the application, unreacted ozone in the hypergravity reactor is discharged through the gas outlet of the hypergravity reactor.
According to the embodiment of the application, after the coking wastewater is subjected to advanced treatment, the COD of the effluent can be reduced to be below 80mg/L, the total nitrogen can reach the environmental protection index of 10-15 mg/L, the national water pollution emission limit value requirement is met, and the recyclable low-standard requirement is met.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for treating coking wastewater according to an embodiment of the present application.
Detailed Description
With the increasingly strict national environmental standards, aiming at the water quality characteristics of poor biodegradability, high total nitrogen and high toxicity of the coking wastewater, the invention aims to provide a device and a method for advanced treatment of the coking wastewater, and the advanced treatment of the coking wastewater is realized by selecting a supergravity advanced oxidation and denitrification combined process. The perfect combination of the combined process solves the problems of unqualified COD and total nitrogen indexes, high operation difficulty, high operation cost, secondary pollution and the like in the technical background to the maximum extent.
Ozone oxidation is an earlier developed chemical water treatment technology based on ozone (O)3) Has strong oxidizing property, and can be used for sterilizing, degrading or removing pollutant, deodorizing and decolorizing. On the basis of ozone Oxidation, a catalyst is introduced, or the catalyst is combined with other oxidants, or the catalyst is coupled with other Processes for use, so that Advanced Oxidation Processes (AOPs) are developed. The AOPs process generates a large amount of free radicals with stronger activity and oxidability, has higher pollutant degradation and removal capacity and faster reaction rate, and becomes a technology for efficiently removing COD. By combining the above descriptions, it can be found that: the application of AOPs in the coking wastewater advanced treatment process has wide prospects.
After the coking wastewater is subjected to biochemical treatment, most organic pollutants and ammonia nitrogen are removed, but a certain amount of nitrate nitrogen and nitrite nitrogen which are difficult to degrade still remain in biochemical effluent, and the requirements of standard emission and low standard of recycling can be really realized only by further deep denitrification. A key link of biological denitrification is a denitrification process, in recent years, denitrification aeration biological filters and denitrification deep bed filters are more and more applied in sewage treatment engineering, and simultaneously show good development prospect and market value, but the prior art also has the problems of more technical short plates, low denitrification efficiency, unstable operation and the like.
Therefore, the advanced treatment technology of the coking wastewater is provided in a targeted manner, and the method has important social benefits and environmental benefits. The invention provides a coking wastewater advanced treatment method and a device thereof based on an AOPs technology and a denitrification mechanism, solves the key problems in the application of the AOPs technology and the denitrification mechanism, and creatively provides the coking wastewater advanced treatment method and the device thereof.
Referring to fig. 1, an apparatus 100 for treating coking wastewater is disclosed, comprising: an ozone generation system 4; the air outlet of the ozone generation system 4 and the water outlet of the raw water storage tank 1 are respectively connected with the air inlet and the water inlet of the hypergravity reactor 2; the water outlet of the super-gravity reactor 2 is connected with the water inlet of the buffer water storage tank 3; the water outlet of the denitrification reactor 5 and the water outlet of the buffer water storage tank 3 are connected to a water inlet system 10 of the denitrification reactor 5. The backwashing wastewater of the denitrification reactor 5 is discharged from the upper part of the denitrification reactor 5. According to the embodiment of the application, the water inlet system 10 is connected with the water backwashing system 11 which is positioned at the bottom of the denitrification reactor 5, the water outlet channel 13 of the denitrification reactor 5 is positioned at the top of the denitrification reactor 5, the water inlet mode of the denitrification reactor 5 adopts an upward flow mode, water is fed from bottom to top, and simultaneously the backwashing water inlet 11 and the water inlet system 10 are in the same upward flow mode.
According to an embodiment of the application, a pipe is arranged between the air outlet and the air inlet, between each water outlet and the corresponding water inlet or water intake system 11 to achieve the connection.
According to the embodiment of the present application, the gas backwashing system 12 of the denitrification reactor 5 is located at the bottom of the denitrification reactor 5 and connected to the outlet of the aeration fan through a pipe.
According to the embodiment of the application, a first liquid flow meter 16 is arranged between the raw water storage tank 1 and the hypergravity reactor 2, a second liquid flow meter 18 is arranged between the buffer water storage tank 3 and the denitrification reactor 5, and the second liquid flow meter 18 has the functions of measuring the flow of inlet water and backwashing water. An ozone concentration detector 20 is arranged between the ozone generating system 4 and the hypergravity reactor 2. A temperature detector is arranged in the buffer water storage tank 3.
According to an embodiment of the present application, the hypergravity reactor 2 comprises an air outlet located above the water outlet of the hypergravity reactor 2. The water outlet is positioned at the bottom of the hypergravity reactor 2 and is used for supplying water to the buffer water storage tank 3, and the air outlet is positioned on the side wall of the hypergravity reactor 2 and is used for supplying air to the buffer water storage tank 3.
Another aspect of the present application provides a method of treating coking wastewater, comprising:
and (3) COD degradation stage: the ozone generation system 4 and the raw water storage tank 1 respectively input the coking wastewater and the ozone after biochemical treatment to the hypergravity reactor 2, and the ozone and the coking wastewater carry out mass transfer and reaction in the hypergravity reactor 2. In one embodiment, after the biochemical treatment, the quality of the advanced treatment influent water is as follows: COD: 100-200 mg/L, 20-30 mg/L of total nitrogen, pH of 6-8, water temperature: 20 to 25 ℃. At this stage, the liquid in the buffer water storage tank 3 can be input into the hypergravity reactor 2 again to realize once circulation treatment, the flow ratio of input gas and liquid into the hypergravity reactor is 2, the concentration of input ozone is 50mg/L, and the level of hypergravity is 50 g;
and (3) degassing: liquid obtained after the reaction of the ozone and the coking wastewater enters a buffer water storage tank 3, and unreacted ozone in the hypergravity reactor 2 is discharged through an air outlet of the hypergravity reactor 2;
a denitrification stage: the liquid pump after the reaction in the buffer water storage tank 3 enters the water inlet system 10 of the denitrification and denitrification reactor 5 to complete the denitrification reaction and the hydraulic flow process, the stability of the inlet water is important for the biochemical reaction, and along with the extension of the operation time, the filter material is blocked by the sewage of different degrees, so that the sewage is uniformly pumped into the denitrification and denitrification reactor 5 through the pressure pump, and the hydraulic rising flow rate and the denitrification effect are ensured.
According to the embodiment of the application, the liquid in the buffer water storage tank 3 is input into the hypergravity reactor 2 again to realize the primary circulation treatment and then enters the denitrification reactor 5. In one embodiment, the gas-liquid flow ratio of the gas to the liquid to be fed into the high gravity reactor 5 is 2 to 10. In one embodiment, the concentration ratio of the ozone input into the high gravity reactor 2 is 5-100 mg/L. In one embodiment, the level of the hypergravity in the hypergravity reactor 2 is 5 to 1000 g. In one embodiment, the number of treatment cycles of the cyclic treatment is 1 to 5. In one embodiment, the denitrification reactor 5 adopts an upflow water feeding mode. In one embodiment, the filler 6 in the denitrification reactor 5 is ceramsite with the particle size of 2-5 mm, the height of the filler 6 is 3-4 m, and the filler accounts for 60% -80% of the height of the denitrification deep denitrification reactor 5, so that sufficient contact space is provided for microorganism attachment, and the sewage and the denitrification filter material are in full contact reaction. In one embodiment, the filler 6 is a ceramsite filter material, the particle size is 1-3 mm, and the filling height of the filler 6 is 3.5m, which accounts for 80% of the height of the denitrification deep denitrification reactor 5.
In one embodiment, the supporting layer 7 is made of 5 grades of cobblestones, and the thickness of the cobblestones is 300-450 mm. In one embodiment, the water backwashing system of the denitrification deep denitrification reactor 5 comprises a water distribution area 9 positioned at the lowest part of the denitrification deep denitrification reactor 5 and a filter head on a filter plate 8, and the water backwashing strength is controlled to be 4-6L/m2S. In one embodiment, the air backwashing system 12 comprises a bottom perforated pipe and a filter head on the filter plate 8, and the air backwashing strength is controlled to be 12-16L/m 2 & s, and in one embodiment, the air backwashing strength is controlled to be 15L/m2S. In one embodiment, the automatic control system 15 comprises a carbon source accurate dosing system control, a lifting system control and a backwashing system control, and the automatic control system 15 comprises all automatic control valves, a flow meter, a liquid level meter and an online instrument display system. In one embodiment, the pH of the inlet water of the hypergravity reactor is controlled to be 6-8, and the inlet water temperature of the denitrification reactor 5 is controlled to be 15-30 ℃. The water outlet channel 13 and the backwash water 14 of the denitrification reactor 5 are connected to the side wall of the top of the denitrification reactor 5. In one embodiment, the air washing time is 3min, the air-water combined washing time is controlled to be 5min, and the water washing time is 8 min.
The main technical parameter tables of the water quality and the device 100 in the embodiment of the invention are as follows:
according to the embodiment of the application, the hypergravity advanced oxidation technology and the denitrification technology are efficiently integrated on the treatment method, the coking wastewater is deeply treated, and the problems that COD (chemical oxygen demand) and total nitrogen indexes of biochemical effluent cannot reach the standard and cannot meet the requirement of low recycling standard are solved. In the aspect of operation cost, the hypergravity advanced oxidation technology and the denitrification technology are efficiently integrated, the treatment effect is good, the treatment efficiency is high, the ozone utilization rate is high, in addition, no additional carbon source is needed to be added in the denitrification process, and the operation cost is reduced to the maximum extent. In terms of technical parameters, control ranges of main parameters such as gas-liquid ratio, ozone concentration, hydraulic load, backwashing period, water temperature, denitrification load and the like are provided, and the parameters are very critical to achieving a treatment target.
The device and the method for deeply treating the coking wastewater have the advantages of high efficiency of supergravity advanced oxidation treatment, high oxidation speed, no secondary pollution, stronger organic matter degradation capability, capability of greatly improving the biodegradability of the wastewater, capability of providing an organic carbon source for the back-end denitrification reaction, no need of additionally supplementing the carbon source, and remarkable denitrification efficiency of the denitrification reactor 5 on the coking wastewater with low-concentration total nitrogen. Based on the combined process principle and complementary efficiency of the supergravity advanced oxidation and denitrification reactor, the method can meet the national discharge requirement of chemical enterprises, COD can be reduced to be below 80mg/L, and total nitrogen can be reduced to be between 10 and 15 mg/L.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An apparatus (100) for treating coking wastewater, comprising:
an ozone generation system (4);
the air outlet of the ozone generation system (4) and the water outlet of the raw water storage tank (1) are respectively connected with the air inlet and the water inlet of the hypergravity reactor (2);
the water outlet of the supergravity reactor (2) is connected with the water inlet of the buffer water storage tank (3);
a denitrification reactor (5), wherein the water outlet of the buffer water storage tank (3) is connected to the water inlet system (10) of the denitrification reactor (5).
2. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that pipes are provided between the air outlet and the air inlet, between each water outlet and the respective water inlet or the water inlet system (11) to enable the connection.
3. The apparatus (100) for treating coking wastewater according to claim 1, wherein the water inlet system (10) is connected with a water backwashing system (11) of the denitrification reactor (5) which is located at the bottom, and the water outlet channel (13) of the denitrification reactor (5) is located at the top of the denitrification reactor (5).
4. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that the gas backwash system (12) of the denitrification reactor (5) is located at the bottom of the denitrification reactor (5) and connected to the outlet of the aeration fan through a pipe.
5. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that a first liquid flow meter (16) is provided between the raw water storage tank (1) and the hypergravity reactor (2), and a second liquid flow meter (18) is provided between the buffer water storage tank (3) and the denitrification reactor (5).
6. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that an ozone concentration detector (20) is disposed between the ozone generating system (4) and the hypergravity reactor (2).
7. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that a temperature detector is arranged in the buffer water tank (3).
8. The apparatus (100) for treating coking wastewater according to claim 1, characterized in that the hypergravity reactor (2) comprises an air outlet above the water outlet of the hypergravity reactor (2).
9. A method for treating coking wastewater, characterized by using the apparatus (100) for treating coking wastewater of any one of claims 1 to 7, comprising:
the ozone generation system (4) and the raw water storage tank (1) respectively input biochemically treated coking wastewater and ozone into the hypergravity reactor (2), and the ozone and the coking wastewater are subjected to mass transfer and reaction in the hypergravity reactor (2);
the liquid obtained after the reaction of the ozone and the coking wastewater enters the buffer water storage tank (3);
and pumping the reacted liquid in the buffer water storage tank (3) into a water inlet system (10) of the denitrification and denitrification reactor (5).
10. The method for treating coking wastewater according to claim 9, characterized in that the unreacted ozone in the hypergravity reactor (2) is discharged through an air outlet of the hypergravity reactor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936417.4A CN112159029A (en) | 2020-09-08 | 2020-09-08 | Device and method for treating coking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936417.4A CN112159029A (en) | 2020-09-08 | 2020-09-08 | Device and method for treating coking wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112159029A true CN112159029A (en) | 2021-01-01 |
Family
ID=73859224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010936417.4A Pending CN112159029A (en) | 2020-09-08 | 2020-09-08 | Device and method for treating coking wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112159029A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015589A (en) * | 1996-07-05 | 1998-01-20 | Ebara Corp | High-degree purification of organic sewage |
| CN2892845Y (en) * | 2006-02-17 | 2007-04-25 | 中北大学 | Equipment for processing organic waste water difficult to degradate by ozone oxidation technology |
| CN102936083A (en) * | 2012-11-14 | 2013-02-20 | 北京赛科康仑环保科技有限公司 | Device and method for removing refractory organics and total nitrogen in waste water simultaneously |
| CN104817167A (en) * | 2015-04-13 | 2015-08-05 | 安徽华骐环保科技股份有限公司 | Water-level descending backwashing method for up-flow biological aerated filter |
| CN105293832A (en) * | 2015-11-20 | 2016-02-03 | 北京万邦达环保技术股份有限公司 | Polyformaldehyde production wastewater treatment apparatus and method therefor |
| CN107879461A (en) * | 2017-11-01 | 2018-04-06 | 北京化工大学 | A kind of processing unit of coking chemical waste water and the processing method of coking chemical waste water |
| CN209210575U (en) * | 2018-09-12 | 2019-08-06 | 陕西秦邦环保科技股份有限公司 | High saliferous organic wastewater with difficult degradation thereby reaches the processing system of IV class water quality of earth's surface |
| CN111470612A (en) * | 2020-03-11 | 2020-07-31 | 安徽绿衡环保科技有限公司 | Efficient intelligent backwashing system of upward flow biological filter |
| CN211226814U (en) * | 2019-11-22 | 2020-08-11 | 北京翰祺环境技术有限公司 | Enhanced denitrification system |
| CN214880919U (en) * | 2020-09-08 | 2021-11-26 | 北京万邦达环保技术股份有限公司 | Device for treating coking wastewater |
-
2020
- 2020-09-08 CN CN202010936417.4A patent/CN112159029A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015589A (en) * | 1996-07-05 | 1998-01-20 | Ebara Corp | High-degree purification of organic sewage |
| CN2892845Y (en) * | 2006-02-17 | 2007-04-25 | 中北大学 | Equipment for processing organic waste water difficult to degradate by ozone oxidation technology |
| CN102936083A (en) * | 2012-11-14 | 2013-02-20 | 北京赛科康仑环保科技有限公司 | Device and method for removing refractory organics and total nitrogen in waste water simultaneously |
| CN104817167A (en) * | 2015-04-13 | 2015-08-05 | 安徽华骐环保科技股份有限公司 | Water-level descending backwashing method for up-flow biological aerated filter |
| CN105293832A (en) * | 2015-11-20 | 2016-02-03 | 北京万邦达环保技术股份有限公司 | Polyformaldehyde production wastewater treatment apparatus and method therefor |
| CN107879461A (en) * | 2017-11-01 | 2018-04-06 | 北京化工大学 | A kind of processing unit of coking chemical waste water and the processing method of coking chemical waste water |
| CN209210575U (en) * | 2018-09-12 | 2019-08-06 | 陕西秦邦环保科技股份有限公司 | High saliferous organic wastewater with difficult degradation thereby reaches the processing system of IV class water quality of earth's surface |
| CN211226814U (en) * | 2019-11-22 | 2020-08-11 | 北京翰祺环境技术有限公司 | Enhanced denitrification system |
| CN111470612A (en) * | 2020-03-11 | 2020-07-31 | 安徽绿衡环保科技有限公司 | Efficient intelligent backwashing system of upward flow biological filter |
| CN214880919U (en) * | 2020-09-08 | 2021-11-26 | 北京万邦达环保技术股份有限公司 | Device for treating coking wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 王笃政;徐宴钧;张红富;孙祥冰;: "废水中氨氮脱除方法最新进展", 氮肥技术, no. 05, 25 October 2011 (2011-10-25) * |
| 闫学峰;: "焦化废水处理新技术开发及应用", 科技情报开发与经济, no. 24, 25 August 2008 (2008-08-25) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106277589B (en) | A kind of system and method using iron carbon Fenton pretreatment-UBF-A/O processing waste water from dyestuff | |
| CN101591082B (en) | Method and device for multicomponent oxide pretreatment of organic electroplating waste water | |
| CN107555701B (en) | Low-cost coking wastewater treatment method | |
| CN112851026B (en) | High-concentration degradation-resistant organic wastewater system and treatment process thereof | |
| CN111422986B (en) | Autotrophic and heterotrophic coupling sewage deep denitrification device and method based on sulfur cycle | |
| CN204779148U (en) | Coking wastewater advanced treatment and recycling system | |
| CN106277555A (en) | High-efficiency low-cost treatment method and system for coking wastewater | |
| CN106186313A (en) | For improveing integrated sewage disposal pond and the sewage water treatment method of AO | |
| CN104710077B (en) | The processing system of synthetic rubber waste water and its processing method | |
| CN202038948U (en) | Integrated high ammonia nitrogen sewage treatment unit | |
| CN214880919U (en) | Device for treating coking wastewater | |
| CN211712893U (en) | Difficult degradation industrial waste water treatment system | |
| CN218025787U (en) | Small-size integration MBR sewage treatment equipment suitable for it is undulant to intake | |
| CN112159029A (en) | Device and method for treating coking wastewater | |
| CN212269816U (en) | Aged landfill leachate non-concentrated solution treatment system | |
| CN201458880U (en) | Multiple oxidation pretreatment system for organic electroplating waste water | |
| CN212174735U (en) | System for be used for handling rubber auxiliary agent CBS waste water | |
| CN111960616A (en) | Non-concentrated liquid treatment system and method for aged landfill leachate | |
| CN108467089B (en) | Pretreatment system and pretreatment method for refractory industrial wastewater | |
| CN105461163A (en) | Wet spinning acrylic production polymeric wastewater treatment system and treatment method | |
| CN110862144A (en) | Anaerobic biological treatment desulfurization method | |
| CN104671595B (en) | A kind of joint sewage-treatment plant of multistage AO Powdered Activated Carbons biological treatment system | |
| CN213895338U (en) | Coking biochemical effluent stable denitrification device | |
| CN111268861B (en) | Multi-section A/O process integrated reactor for hair product wastewater treatment | |
| CN211770830U (en) | Continuous flow nitrosation/anaerobic ammonia oxidation/denitrification treatment device suitable for landfill leachate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |