CN210286990U - Organic sewage and waste gas integrated treatment device - Google Patents
Organic sewage and waste gas integrated treatment device Download PDFInfo
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- CN210286990U CN210286990U CN201921005514.0U CN201921005514U CN210286990U CN 210286990 U CN210286990 U CN 210286990U CN 201921005514 U CN201921005514 U CN 201921005514U CN 210286990 U CN210286990 U CN 210286990U
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Abstract
An organic sewage and waste gas integrated treatment device mainly comprises: the water storage tank, the contact oxidation tower, the chemical catalytic oxidation reaction device and the pH adjusting coagulating sedimentation device are connected, the water outlet of the water storage tank is connected with the inlet of the spray circulating pump, and the outlet of the spray circulating pump is connected with the water inlet at the top of the contact oxidation tower through a circulating spray pipeline. The outlet of the spraying circulating pump is provided with a waste gas feeding port and an H2O2Adding port and ozone adding port, waste gas addingThe opening is provided with an exhaust gas jet device, an exhaust gas jet device and an H2O2The pipeline mixer at the rear end of the feeding port is connected, an ozone jet device is arranged at the ozone feeding port, and the inlet end of the ozone jet device is connected with the outlet end of the pipeline mixer. The synchronous treatment function of the waste water and the waste gas is realized, independent treatment equipment for the waste water and the waste gas is not required to be established independently, and unnecessary investment is saved.
Description
Technical Field
The invention relates to a pollution treatment device, in particular to a comprehensive treatment device for organic polluted wastewater and waste gas.
Background
Currently, inhalable particles have become an important source of air quality hazard, and Volatile Organic Compounds (VOCs) constitute a large source of inhalable gas. Meanwhile, in industrial production, Volatile Organic Compounds (VOCs) such as hydrocarbon substances, including alkanes, aromatic hydrocarbons, alkenes, alcohols, ethers and the like are frequently accompanied and are the most common pollutants discharged by the petrochemical industry, which has great destructive effect on the environment,
the emission of volatile organic compound gases and organic waste water seriously pollutes the environment. At present, people basically separate the purification of waste gas and waste water, two complete waste gas treatment systems and waste water treatment systems are needed, the cost is higher, the treatment efficiency is low, the requirement on the site is high, the treatment limit of the existing treatment method is difficult to adapt to the continuously improved emission standard requirement, and the micro-pollution treatment effect is poor.
The Fenton-like reaction refers to the reaction of O in zero-valent iron or iron-based multi-metal material under the aerobic condition2Reduction to H2O2Then in Fe2+Under the catalytic action of (2), hydroxyl free radicals (OH) with strong oxidizing property are generated in situ, and the reaction equation is shown in formulas (1) to (2); fenton reaction means H2O2 in Fe2+The catalyst generates OH with strong oxidizing property, and the reaction equation is shown as the formula (3); the toxic and non-degradable pollutants are decomposed and converted into micromolecular substances which are easy to biochemically treat, and the biodegradability of the wastewater is improved.
FeO+O2+2H+→H2O2+Fe2+(1)
Fe2++H2O2→·OH+Fe3++OH-(2)
Fe2++H2O2+H+→Fe3++H2O+·OH (3)
Application No. 201810705754.5 discloses a UV photodissociation exhaust treatment device is united to ozone, UV photodissociation exhaust treatment device is united to ozone includes: the device comprises an ozone generator, a UV photolysis device and a mixer, wherein the mixer comprises a box body, a throat pipe penetrating through the box body, a contraction pipe connected with the inlet end of the throat pipe and an expansion pipe connected with the outlet end of the throat pipe; a plurality of rows of through holes are formed in the throat pipe at equal angles along the circumferential direction; all the through holes are positioned in the box body; an outlet pipeline of the ozone generator is communicated with the box body; the outlet end of the expansion pipe is communicated with the inlet end of the UV photolysis device through a pipeline. The ozone and UV photolysis waste gas treatment device can realize rapid and uniform mixing of ozone and organic waste gas, and improves the treatment effect of the organic waste gas.
Application number 201510941753.7 discloses a treatment device for VOC waste gas by utilizing ozone catalysis and biological oxidation, which comprises a washing biological packed tower, a biological bacteria liquid pool and a circulating pump, wherein the inlet end of the washing biological packed tower is connected with an ozone generator, a catalyst packing layer, a biological bacteria packing layer and a biological bacteria liquid spraying layer are arranged in the washing biological packed tower, and the washing biological packed tower, the biological bacteria liquid pool and the circulating pump form a biological bacteria liquid circulating structure; carrying out first treatment on the organic waste gas in a catalyst packing layer through catalytic oxidation by ozone; carrying out second treatment on the organic waste gas with the changed molecular structure in the biological bacteria packing layer; and organic waste gas pollutants flow back to the biological bacteria liquid pool along with the biological bacteria liquid for the third treatment. After the structure is adopted, the method has the advantages of low operation cost, good stability, high purification efficiency, good safety, affordability, standard emission and the like, and the method can only treat waste gas and cannot treat waste water.
The prior art can only treat waste water or waste gas independently, so that a comprehensive treatment device for waste water and waste gas is needed to be developed.
Disclosure of Invention
The invention provides an integrated treatment device for organic sewage and waste gas, which aims at the defect that the prior art can only treat waste water or waste gas independently.
An organic sewage and waste gas integrated treatment device comprises the following structures: a water storage tank water outlet 1 (12) at the bottom of a water storage tank (11) is connected with an inlet of a spraying circulating pump (1), an outlet of the spraying circulating pump (1) is connected with a contact oxidation tower top water inlet (9) through a circulating spraying pipeline (8), the bottom of the contact oxidation tower is communicated with the top of the water storage tank (11), a two-way breather valve (14) connected with the top of the water storage tank (11), the top of the water storage tank (11) is connected with a front-end ozone feeding port (6) through a gas return pipe (15), a sewage lifting pump (17) inlet connected with a water outlet 2(13) of the water storage tank is connected with a liquid inlet water distributor (18) at the bottom of a chemical catalytic oxidation reaction device connected with a water outlet of the sewage lifting pump (17), an air outlet of an air blower (19) is connected with an aerator (20) at the bottom of the chemical catalytic oxidation device, a waste gas collecting device (22) at the top of the chemical catalytic, the chemical catalytic oxidation device water outlet (24) is connected with the pH adjusting coagulating sedimentation device (25), the clear water tank (30) is connected with the water outlet (29) of the pH adjusting coagulating sedimentation device, the return pump (32) water inlet is connected with the clear water tank water outlet (31), and the outlet of the return pump (32) is connected with the water replenishing port at the top of the water storage tank (11) through a return pipe (33).
As an innovation of the invention, a waste gas feeding port is arranged at the outlet of the spraying circulating pump, and a waste gas jet device is arranged at the waste gas feeding port. The waste gas is mixed with water through the ejector to dissolve pollutants in the waste gas into the water,
H2O2adding the mixture into a feeding port, and completely mixing the mixture with a water body in which organic pollution gas is dissolved in a pipeline mixer part;
further, the ozone passes through the ejector and is mixed with the organic waste gas and H2O2Is mixed with the water mixed with the organic waste gas and H2O2The yield of hydroxyl radicals is improved through synergistic reaction, and the dissolved organic waste gas is oxidized by the hydroxyl radicals in the water body;
2O3+ H2O2→2·OH+3O2
furthermore, the pipeline that the spray circulating pump is connected with the contact oxidation tower is a return gallery type spray pipeline, and organic waste gas in the dissolved water is ensured to be sprayed by O3And H2O2The organic waste gas dissolved in the water is oxidized more fully by the synergistic oxidation time.
Further, contact oxidation tower top water inlet department is equipped with the shower nozzle, and inside is equipped with three-layer catalytic oxidation and absorbs the filler, bottom and retaining water tank intercommunication, and retaining water tank bottom both sides are equipped with delivery port 1 and delivery port 2, and delivery port 1 connects the circulation and sprays the pump import, and delivery port 2 connects the sewage lift pump water inlet, and the top links to each other with contact oxidation tower bottom delivery port, and two-way breather valve, gas reflux pipe are established at the retaining water tank top.
The preferable catalytic filler layer is formed by freely piling one or more catalysts selected from noble metals, rare earth metal oxides and transition metal oxides by taking a compound porous substance as a carrier. The surface of the filler is smooth and mellow and is not adhered.
Further dissolving ozone and H2O2The ozone overflowing from the water body of the organic waste gas contacts with the catalytic filler in the contact oxidation tower again, the organic waste gas overflowing from the oxidation water is oxidized, multistage catalytic oxidation is realized, most of the organic waste gas which is not completely oxidized and overflows from the water body and is not completely oxidized by the contact oxidation and the ozone are leached into the waste water again, the organic waste gas and the ozone are pumped into the chemical catalytic oxidation device together by the sewage lifting pump at the outlet 2 and are further oxidized, the residual part of gaseous waste gas and the ozone flow back to the front-section ozone adding port through the gas return pipe, and the secondary circulation reaction ensures the utilization rate of the ozone and the efficiency of the gas oxidation
Furthermore, the two-way breather valve is used for ensuring the balance of internal and external pressure, and O which is not oxidized completely and overflows3Collected by the return pipe and returned to the front-section ozone adding port for reuse and retreatment;
further, the inlet of a sewage lifting pump is connected with the water outlet 2 of the water storage tank and the water outlet of the regulating tank, the water outlet of the sewage lifting pump is connected with the water inlet at the bottom of the chemical catalytic oxidation reaction device, 3 dosing ports are arranged at the water outlet of the sewage lifting pump, and a pipeline mixer is arranged on each dosing port;
furthermore, the pipeline mixer ensures that the medicament is completely mixed with the sewage and the shower water in the water storage tank in the pipeline, reduces power stirring and saves more energy;
further, a water inlet is arranged at the bottom of the chemical catalytic oxidation device, an aeration device and an evacuation port are arranged at the bottom of the water inlet, an aeration air inlet is connected with the air blower, catalytic oxidation fillers are filled in the aeration air inlet, a water outlet weir plate, a water outlet and a top volatile gas collecting port are arranged at the top end of the aeration air inlet, an outlet of the top volatile gas collecting port is connected with an air feeding port at the water outlet of the spraying circulating pump, and a chemical catalytic oxidation water outlet is connected with a water inlet of the PH regulation coagulating;
the catalytic oxidation device is internally filled with a carrier of porous composite material, precious metal, rare earth metal or transition metal and oxide thereof and a redox reaction catalyst are pre-filled on the carrier, the top of the carrier is provided with a seal and a cover thereof to collect overflowed organic waste gas, the organic waste gas flows back to a front section waste gas near gas port through a pipeline and enters a contact oxidation tower after entering the pipeline along with original polluted waste gas for reaction, the device is also provided with a pipeline or an opening for adding a medicament, and the bottom of the device is provided with an aeration device. For example, ceramic balls can be used as the support. Using MnO2As metal oxide on a support, and ferrous iron is added as a catalyst.
The aeration device at the bottom of the chemical catalytic oxidation device enables the surface of the catalyst to be stirred by large kinetic energy of gas and liquid, and three-phase substances are violently impacted, so that the adsorption and desorption reaction efficiency is greatly increased, and solid impurities are prevented from being accumulated on the surface of the catalyst, so that the catalyst is poisoned and the catalytic efficiency is reduced.
The catalyst is selected from any one of ferric salt, ferrous salt and copper salt. Preferably, the iron salt is FeCl3、Fe(OAc)3Or Fe2(SO4)3The ferrous salt is FeCl2、Fe(OAc)2、FeSO4。
Further, waste gas overflowing through aeration in the sealed waste water at the top of the chemical catalytic oxidation device is collected and passed through.
The PH adjusting coagulating sedimentation device is further provided with a PH adjusting tank, a coagulating tank and a sedimentation area, wherein the PH adjusting tank is provided with a PH probe and is connected with an alkali liquor pump, the dosage is automatically controlled, a coagulant adding port is arranged in the coagulating tank, the PH adjusting tank and the coagulating tank are both provided with a stirrer, the sedimentation area is provided with a mud bucket and a mud discharge port, and the top of the sedimentation area is provided with a water outlet weir plate and a water outlet;
the water outlet of the pH adjusting coagulating sedimentation device is connected with the water inlet of the clear water tank, the water outlet at the bottom of the clear water tank is connected with the water inlet of the reflux pump, the outlet of the reflux pump is connected with the water replenishing port at the top of the water storage tank, and the clear water tank is provided with a clear water tank water outlet.
Has the advantages that:
1. the utility model provides a problem that the leaching water concentration that waste gas drip washing absorption and oxidation incompletely lead to risees gradually need not to change the shower water, and the organic waste gas that dissolves in the shower water can together oxidize with organic contaminated water in follow-up chemical catalytic oxidation device, and the waste water up to standard after the oxidation is partly discharged, and partly flows back to the retaining water tank
2. The synchronous treatment function of the waste water and the waste gas is realized, independent treatment equipment for the waste water and the waste gas is not required to be established independently, and unnecessary investment is saved;
3. the unique jet flow mixing and pipeline mixer ensures the utilization rate of ozone, the mixing uniformity of hydrogen peroxide and the solubility of waste gas, so that most of organic polluted waste gas is dissolved and O dissolved in water3And H2O2The synergistic oxidation, a small amount of insoluble waste gas is oxidized in the contact oxidation tower, so that the oxidation is ensured to be more thorough;
4. the circulating pipeline of the circulating pump prolongs the organic waste gas and O3、H2O2The contact time prolongs the reaction time, so that the oxidation effect is better;
5. the gas return pipeline on the top of the water storage tank enables the organic waste gas which is not completely oxidized and the O which is not completely utilized to be overflowed out of the water body3Is brought back into the reactor under the action of the ejector again to ensure the complete oxidation of the waste gas and O3The redundant standard-reaching gas can be overflowed from the bidirectional breather valve.
Description of the drawings:
FIG. 1 schematic diagram of the apparatus
Wherein, 1 is a spraying circulating pump, 2 is a waste gas feeding port, 3 is a waste gas jet device, 4 is an H2O2 feeding port, 5 is a pipeline mixer, 6 is an ozone feeding port, 7 is an ozone jet device, 8 is a circulating spraying pipeline, 9 is a water inlet at the top of a contact oxidation tower, 10 is a catalytic absorption filler, 11 is a water storage tank, 12 is a water storage tank water outlet 1, 13 is a water storage tank water outlet 2, 14 is a two-way breather valve, 15 is a gas return pipe, 16 is an adjusting tank, 17 is a sewage lifting pump, 18 is a liquid inlet water distributor, 19 is an air blower, 20 is an aerator, 21 is a chemical catalytic filler, 22 is a waste gas collecting device, 23 is a waste gas return pipe, 24 is a chemical catalytic device water outlet, 25 is a PH adjusting coagulating sedimentation device, 26 is a PH adjusting reaction area, 27 is a sludge hopper, 28 is a sludge discharge port, 29 is a PH adjusting coagulating sedimentation device water outlet, 30 is a clear water tank, 31 is a water outlet of the clear water tank, 32 is a reflux pump, and 33 is a reflux pipe.
Detailed Description
The utility model provides an organic sewage, waste gas integrated processing device, the device's specific implementation process: after the spraying circulating pump 1 is started, clean water is sucked into the spraying circulating pump 1 through a water outlet 1 (12) of the water storage tank, enters the waste gas jet device 3 from the spraying circulating pump 1, generates negative pressure at a waste gas feeding port 2, and enables organic waste gas to be dissolved into clean water (the clean water in which the organic polluted waste gas is dissolved is hereinafter referred to as organic polluted water) in the water storage tank 11 pumped out by the spraying circulating pump 1 under the action of the waste gas jet device 32O2The feeding port 4 feeds H2O2The clean water dissolved into the organic waste gas is completely mixed with hydrogen peroxide through the pipeline mixer 5, ozone is introduced into the ozone adding port 6 and then acted by the ozone jet device 7, so that the solubility of the ozone in the dissolved water is improved, and the ozone and H2O2The generation of hydroxyl is improved, the hydroxyl oxidation reaction is carried out in the circulating spray pipeline 8, part of organic polluted water which is not oxidized is sprayed out through an atomizing nozzle of a water inlet 9 at the top of the contact oxidation tower, is adsorbed by a catalytic absorption filler 10 in the contact oxidation tower, and part of ozone which is not utilized is sprayed outReacting with a catalytic absorption filler 10 in a contact oxidation tower to further oxidize organic pollutants adsorbed on the surface of the catalytic absorption filler 10, wherein organic polluted water containing a small amount of pollutants flows into a water storage tank 11 through the bottom of the contact oxidation tower, part of waste gas overflowing the organic polluted water and part of ozone flow back to an ozone adding port 6 through a gas return pipe 15 to continue oxidation, and in the process, in order to prevent the water storage tank from generating negative pressure, a bidirectional breather valve 14 is arranged at the top of the water storage tank, and the whole process is a cyclic process; meanwhile, part of the waste water in the water storage tank is mixed with the organic waste water pumped out from the regulating tank 16 through a water outlet 2(13) of the water storage tank and is lifted by a sewage lifting pump 17 to enter a chemical catalytic oxidation device, a dosing port is arranged between the sewage lifting pump 17 and the chemical catalytic oxidation device, sulfuric acid, ferrous sulfate solution and hydrogen peroxide are respectively added, the mixture is completely mixed under the action of a mixer and uniformly enters the chemical catalytic oxidation device through a liquid inlet water distributor 18, an air blower 19 aerates and oxygenizes the chemical catalytic oxidation device through an aerator 20 to ensure that chemical catalytic fillers 21 in a chemical catalytic oxidation tower are fluidized to promote the hydroxylation reaction of the ferrous sulfate and the hydrogen peroxide, the oxidation efficiency is improved, the organic waste gas overflowed in the aeration process is collected through a waste gas collecting device 22 and then flows back to a waste gas feeding port 2 through a waste gas return pipe 23, and the oxidized organic waste water flows into a PH regulating coagulating sedimentation device 25 through a, alkali liquor is added into the PH back-adjusting reaction zone 26 for back-adjusting, the mixed solution is precipitated in the precipitation zone, precipitated sludge is stored in a sludge hopper 27, sludge is discharged through a sludge discharge port 28, the oxidized waste water reaching the standard flows into a clear water tank 30 through a water outlet 29 of the PH adjusting coagulating sedimentation device, part of the treated waste water is supplemented to the water storage tank 11 from a return pipe 33 through a return pump 32, and the redundant waste water is discharged through a water outlet 31 of the clear water tank.
Claims (8)
1. An organic sewage and waste gas integrated treatment device is characterized by comprising the following structures: a water storage tank water outlet 1 (12) at the bottom of a water storage tank (11) is connected with an inlet of a spraying circulating pump (1), an outlet of the spraying circulating pump (1) is connected with a contact oxidation tower top water inlet (9) through a circulating spraying pipeline (8), the bottom of the contact oxidation tower is communicated with the top of the water storage tank (11), a two-way breather valve (14) connected with the top of the water storage tank (11), the top of the water storage tank (11) is connected with an ozone feeding port (6) through a gas return pipe (15), an inlet of a sewage lifting pump (17) connected with a water outlet of the water storage tank water outlet 2(13), a liquid inlet water distributor (18) at the bottom of a chemical catalytic oxidation reaction device connected with a water outlet of the sewage lifting pump (17), an air outlet of an air blower (19) is connected with an aerator (20) at the bottom of the chemical catalytic oxidation device, a waste gas collecting device (22) at the top of the chemical catalytic, the chemical catalytic oxidation device water outlet (24) is connected with the pH adjusting coagulating sedimentation device (25), the clear water tank (30) is connected with the water outlet (29) of the pH adjusting coagulating sedimentation device, the return pump (32) water inlet is connected with the clear water tank water outlet (31), and the outlet of the return pump (32) is connected with the water replenishing port at the top of the water storage tank (11) through a return pipe (33).
2. The integrated treatment device for organic sewage and waste gas according to claim 1, wherein an outlet of the spraying circulating pump (1) is provided with a waste gas feeding port (2), and H2O2A feeding port (4) and an ozone feeding port (6), wherein a waste gas jet device (3) is arranged at the waste gas feeding port (2), and the waste gas jet device (3) and the H are arranged2O2The pipeline mixer (5) at the rear end of the adding port (4) is connected, an ozone jet device (7) is arranged at the ozone adding port (6), and the inlet end of the ozone jet device (7) is connected with the outlet end of the pipeline mixer (5).
3. The integrated treatment device for organic sewage and waste gas according to claim 1, wherein the catalytic oxidation tower is internally filled with catalytic absorption packing (10).
4. The integrated treatment device for organic sewage and waste gas according to claim 1, wherein an atomizing nozzle is arranged at the water inlet (9) at the top of the contact oxidation tower, three layers of chemical catalytic fillers (21) are arranged in the contact oxidation tower, and the bottom of the contact oxidation tower is communicated with the top of the water storage tank (11).
5. The integrated treatment device for organic sewage and waste gas according to claim 1, wherein a sewage adjusting tank (16) is separately arranged, and the inlet of a sewage lifting pump (17) is connected with the water outlet 2(13) of the water storage tank and the water outlet of the adjusting tank (16).
6. The integrated treatment device for organic sewage and waste gas according to claim 1, wherein 3 chemical adding ports are arranged at the water outlet of the sewage lift pump (17), and a pipeline mixer is arranged at each chemical adding port.
7. The integrated organic sewage and waste gas treatment device according to claim 1, wherein a water outlet weir plate and a water outlet are arranged at the top end of the chemical catalytic oxidation device.
8. The integrated treatment device for organic sewage and exhaust gas according to claim 1, wherein the pH adjusting coagulating sedimentation device (25) is provided with a pH adjusting reaction zone (26), the pH adjusting tank is provided with a pH probe and is connected with an alkali liquor pump, the dosage is automatically controlled, a coagulant feeding port is arranged in the coagulating tank, a stirrer is arranged in each of the pH adjusting tank and the coagulating tank, the sedimentation zone is provided with a sludge hopper (27) and a sludge discharge port (28), and a water outlet (29) of the top pH adjusting coagulating sedimentation device.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003851A (en) * | 2020-11-13 | 2021-06-22 | 四川全息生态环境技术产业有限公司 | Ultrasonic, ozone and micro-channel advanced oxidation method and device thereof |
| CN113003850A (en) * | 2020-11-13 | 2021-06-22 | 四川全息生态环境技术产业有限公司 | Advanced oxidation method and device |
| CN114477588A (en) * | 2022-01-26 | 2022-05-13 | 海宁天纵电子科技有限公司 | Liquid medicine destroying device with automatic detection function |
-
2019
- 2019-07-01 CN CN201921005514.0U patent/CN210286990U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003851A (en) * | 2020-11-13 | 2021-06-22 | 四川全息生态环境技术产业有限公司 | Ultrasonic, ozone and micro-channel advanced oxidation method and device thereof |
| CN113003850A (en) * | 2020-11-13 | 2021-06-22 | 四川全息生态环境技术产业有限公司 | Advanced oxidation method and device |
| CN114477588A (en) * | 2022-01-26 | 2022-05-13 | 海宁天纵电子科技有限公司 | Liquid medicine destroying device with automatic detection function |
| CN114477588B (en) * | 2022-01-26 | 2023-11-14 | 海宁天纵电子科技有限公司 | Liquid medicine destroying device with automatic detection function |
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