CN111925039A - High-concentration degradation-resistant wastewater treatment device and treatment process - Google Patents
High-concentration degradation-resistant wastewater treatment device and treatment process Download PDFInfo
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- CN111925039A CN111925039A CN202010758500.7A CN202010758500A CN111925039A CN 111925039 A CN111925039 A CN 111925039A CN 202010758500 A CN202010758500 A CN 202010758500A CN 111925039 A CN111925039 A CN 111925039A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
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- 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
- C02F2201/002—Construction details of the apparatus
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- 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
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
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- 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
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/26—Reducing the size of particles, liquid droplets or bubbles, e.g. by crushing, grinding, spraying, creation of microbubbles or nanobubbles
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- Hydrology & Water Resources (AREA)
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Abstract
The invention relates to the technical field of sewage treatment, in particular to a high-concentration degradation-resistant wastewater treatment device and a treatment process, wherein the treatment device comprises a pH value regulator, a cold coke pool, a coke tower, a condenser, a first oil remover, a stripping tower, a solid-liquid separator and a second oil remover, wastewater from a wastewater storage tank is subjected to pH value regulation by the pH value regulator, then enters the cold coke pool, is diluted by cold coke water, and then is sent into the coke tower for pyrolysis treatment, steam from the coke tower is treated by the condenser, the first oil remover and the stripping tower to obtain dirty oil, ammonia nitrogen and sulfide and recyclable water, and decomposed wastewater from the coke tower is treated by the solid-liquid separator and the second oil remover to obtain coking powder, dirty oil and recyclable water, short time, low equipment operation cost and low operation condition requirement.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of sewage treatment, in particular to a high-concentration degradation-resistant wastewater treatment device and a treatment process.
[ background of the invention ]
In 2016, 1 month, about 4000m is generated by overhaul of a certain refinery enterprise3The high-concentration sewage is mainly sewage generated by cleaning and passivating in the maintenance process of process devices such as device desulfurization, dehydration, sulfur recovery and the like, and the accident water tank TK-202 of the sewage treatment plant is stored temporarily according to the overall arrangement of a company due to no reliable disposal scheme. In 2018, in 5 months, the clear tank of the 4# and 5# light sump oil tanks of the storage and transportation department of the company generates about 1092m3The high-concentration organic amine sewage is sent to TK-202, and the organic amine sewage is extremely easy to cause the impact of a biochemical system due to strong toxicity and cannot enter a sewage system for treatment. The above total receiving high concentration sewage 5092m3In the accident water tank TK-202, the accident water tank is occupied for a long time, and a large environmental risk exists.
The biochemical nature of high concentration maintenance waste water is poor, and the toxicity is strong, very easily causes the impact to sewage system, and among the prior art, the most effective processing mode adopts advanced oxidation technology to handle, and nevertheless advanced oxidation technology running cost is high, and operating condition requires highly, and has the incomplete condition of oxidation. At present, refinery enterprises adopt a mode of gradually mixing a small amount of sewage into a sewage treatment field for treatment, but when the sewage treatment capacity is large, the treatment efficiency is low, and the treatment time is long.
[ summary of the invention ]
In view of the above, the present invention provides a high-concentration degradation-resistant wastewater treatment apparatus and a treatment process, which solve the problem of difficult treatment of high-concentration degradation-resistant wastewater.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a high concentration difficult degradation effluent treatment plant, includes pH valve regulator, cold burnt pond, coke drum, condenser, first degreaser, strip tower, solid-liquid separation ware and second degreaser, pH valve regulator, cold burnt pond, coke drum connect gradually, the condenser is connected the upper portion of coke drum, condenser, first degreaser, strip tower connect gradually, solid-liquid separation ware connects respectively the lower part and the second degreaser of coke drum.
Further, the pH value adjuster comprises a mixing pipe and a acid storage tank, the bottom of the acid storage tank is provided with an acid outlet, a one-way valve is arranged in the acid outlet, the acid outlet is connected with the upper part of the mixing pipe through a pipeline, one end of the mixing pipe is connected with a waste water storage tank through a pipeline, and the other end of the mixing pipe is connected with the cold coke pool through a pipeline. The addition of the acid is controlled by controlling the opening and closing of the check valve, the control is convenient, and the addition speed of the acid can be controlled by controlling the opening size of the check valve.
Further, a stirrer is arranged in the coke cooling pool. Through the stirring effect of agitator, can make cold burnt water and the waste water that gets into the cold burnt pond fuse fast, improve the dilution efficiency of waste water.
Further, the first oil remover and the second oil remover are identical in structure.
Further, first degreaser includes flocculating agent adder, micro-nano bubble generator, coagulant aid adder and reaction tank, the pipe connection is passed through to micro-nano bubble generator's one end the condenser, micro-nano bubble generator's the other end passes through the pipe connection the reaction tank, flocculating agent adder locates between condenser and the micro-nano bubble generator, coagulant aid adder locates between micro-nano bubble generator and the reaction tank.
Further, including reaction zone and settling zone in the reaction tank, adopt the baffle to separate between the lower extreme of reaction zone and the lower extreme of settling zone, the upper end of reaction zone and the upper end intercommunication of settling zone, the bottom of reaction zone is connected micro-nano bubble generator, the lower part of settling zone is equipped with the outlet, the upper portion of reaction tank is equipped with scrapes sediment equipment.
A high-concentration degradation-resistant wastewater treatment process comprises the following steps: a. adding acid to adjust the pH value of the wastewater and oxidize partial sulfide and refractory substances; b. diluting the wastewater after the pH value is adjusted by using cold coke water; c. introducing the diluted wastewater into a coke tower for pyrolysis treatment to obtain decomposed steam and decomposed wastewater; d. cooling and deoiling the decomposed steam to obtain dirty oil and deoiled wastewater, collecting the dirty oil and performing steam stripping on the deoiled wastewater to further treat ammonia nitrogen and sulfide in the dirty oil and the deoiled wastewater; e. performing solid-liquid separation on the decomposed wastewater to obtain coking powder and filtered waste liquid, collecting the coking powder, performing oil-water separation on the filtered waste liquid to obtain sump oil and deoiled water, and respectively collecting the sump oil and the deoiled water.
Further, the process adopts the high-concentration degradation-resistant wastewater treatment device.
Further, concentrated sulfuric acid is added in the step a to adjust the pH value of the wastewater.
Further, the high-temperature coking decomposition treatment temperature in the step c is 380 ℃.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
the invention discloses a high-concentration degradation-resistant wastewater treatment device which comprises a pH value regulator, a cold coke pool, a coke tower, a condenser, a first oil remover, a stripping tower, a solid-liquid separator and a second oil remover, wherein wastewater from a wastewater storage tank is subjected to pH value regulation by the pH value regulator, then enters the cold coke pool, is diluted by cold coke water to avoid equipment corrosion caused by the fact that high-concentration wastewater and concentrated acid enter subsequent equipment, then the diluted wastewater is sent to the coke tower for high-temperature decomposition treatment, steam from the coke tower is treated by the condenser, the first oil remover and the stripping tower to obtain sump oil, ammonia nitrogen, sulfide and recyclable water, and the decomposed wastewater from the coke tower is treated by the solid-liquid separator and the second oil remover to obtain coking powder, sump oil and recyclable water. The high-concentration degradation-resistant wastewater treatment device and the treatment process solve the problem that high-concentration degradation-resistant wastewater is difficult to treat, have high treatment efficiency on the high-concentration degradation-resistant wastewater, short treatment time, low equipment operation cost and low operation condition requirement, and can be met by common oil refining enterprises.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a high concentration degradation-resistant wastewater treatment apparatus according to the present invention;
FIG. 2 is a schematic view of a first degreaser of the present invention;
the system comprises a pH value regulator 1, a coke cooling tank 2, a coke tower 3, a condenser 4, a first oil remover 5, a stripping tower 6, a solid-liquid separator 7, a second oil remover 8, a stirrer 9, a mixing pipe 10, an acid storage tank 11, a one-way valve 12, a micro-nano bubble generator 13, a reaction tank 14, a flocculant adder 15, a coagulant aid adder 16, a reaction zone 17, a settling zone 18, a partition plate 19 and a slag scraping device 20.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a high-concentration refractory wastewater treatment device includes a ph adjuster 1, a coke cooling tank 2, a coke drum 3, a condenser 4, a first degreaser 5, a stripping tower 6, a solid-liquid separator 7 and a second degreaser 8, wherein the ph adjuster 1, the coke cooling tank 2 and the coke drum 3 are sequentially connected, the condenser 4 is connected to the upper portion of the coke drum 3, the condenser 4, the first degreaser 5 and the stripping tower 6 are sequentially connected, the solid-liquid separator 7 is a cyclone coke powder remover, and the solid-liquid separator 7 is respectively connected to the lower portion of the coke drum 3 and the second degreaser 8.
PH regulator 1 includes hybrid tube 10 and storage acid tank 11, and the bottom of storing up acid tank 11 is equipped with out the sour mouth, is equipped with check valve 12 in the play sour mouth, and the play sour mouth passes through the upper portion of pipe connection hybrid tube 10, and the pipe connection waste water holding vessel is passed through to the one end of hybrid tube 10, and the other end of hybrid tube 10 passes through pipe connection cold burnt pond 2. A stirrer 9 is arranged in the cold coke pool 2, the cold coke pool 2 is connected with a cold coke water storage tank, a cold coke water pump is arranged between the cold coke water storage tank and the cold coke pool 2, and the cold coke water pump pumps the cold coke water in the cold coke water storage tank into the cold coke pool 2. A water delivery pump is arranged between the cold coke pool 2 and the coke tower 3, and the water delivery pump pumps the diluted wastewater in the cold coke pool 2 into the coke tower 3.
Referring to fig. 2, the first degreaser 5 and the second degreaser 8 have the same structure. The first oil remover 5 comprises a flocculant adder 15, a micro-nano bubble generator 13, a coagulant aid adder 16 and a reaction tank 14, one end of the micro-nano bubble generator 13 is connected with the condenser 4 through a pipeline, the other end of the micro-nano bubble generator 13 is connected with the reaction tank 14 through a pipeline, the flocculant adder 15 is arranged between the condenser 4 and the micro-nano bubble generator 13, and the coagulant aid adder 16 is arranged between the micro-nano bubble generator 13 and the reaction tank 14. The reaction tank 14 comprises a reaction zone 17 and a settling zone 18, the lower end of the reaction zone 17 is separated from the lower end of the settling zone 18 by a partition plate 19, the upper end of the reaction zone 17 is communicated with the upper end of the settling zone 18, the bottom of the reaction zone 17 is connected with the micro-nano bubble generator 13, the lower part of the settling zone 18 is provided with a water outlet, and the upper part of the reaction tank 14 is provided with a slag scraping device 20.
The wastewater treatment process utilizing the high-concentration degradation-resistant wastewater treatment device comprises the following steps:
a. when the wastewater passes through the mixing pipe 10, opening the one-way valve 12 of the pH value regulator 1 to enable concentrated sulfuric acid in the acid storage tank 11 to enter the mixing pipe 10 to be mixed with the wastewater, regulating the pH value of the wastewater, and oxidizing partial sulfide and refractory substances to obtain the wastewater with the pH value regulated;
b. after the wastewater with the adjusted pH value enters the cold coke pool 2, adding cold coke water into the cold coke pool 2, starting a stirrer 9, uniformly stirring concentrated sulfuric acid, the wastewater and the cold coke water in the wastewater, and diluting the wastewater to obtain diluted wastewater;
c. introducing the diluted wastewater into a coke tower 3 with the temperature kept at 380 ℃ for pyrolysis treatment to obtain decomposition steam and decomposition wastewater;
d. cooling the decomposed steam by using a condenser 4 to obtain cooling liquid, deoiling the cooling liquid by using a first deoiler 5 to obtain dirty oil and deoiled wastewater, collecting the dirty oil into a dirty oil tank in a plant area for storage, wherein ammonia nitrogen and sulfide are contained in the deoiled wastewater, stripping the deoiled wastewater by using a stripping tower 6 to remove the ammonia nitrogen and the sulfide in the deoiled wastewater and recover the ammonia nitrogen and the sulfide, and recovering the residual water to a cold coke water storage tank;
e. and (3) carrying out solid-liquid separation on the decomposed wastewater by using a solid-liquid separator 7 to obtain coking powder and filtered waste liquid, collecting the coking powder to a storage area of a plant area, then carrying out oil-water separation on the filtered waste liquid by using a second oil remover 8 to obtain sump oil and deoiled water, collecting the sump oil to a sump oil tank in the plant area for storage, and recovering the deoiled water to a cold coke water storage tank.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a high concentration refractory wastewater processing apparatus which characterized in that: the device comprises a pH value regulator, a cold coke pool, a coke tower, a condenser, a first oil remover, a stripping tower, a solid-liquid separator and a second oil remover, wherein the pH value regulator, the cold coke pool and the coke tower are sequentially connected, the condenser is connected with the upper part of the coke tower, the condenser, the first oil remover and the stripping tower are sequentially connected, and the solid-liquid separator is respectively connected with the lower part of the coke tower and the second oil remover.
2. The apparatus for treating high-concentration refractory wastewater according to claim 1, wherein: the pH value adjuster comprises a mixing pipe and a acid storage tank, wherein the bottom of the acid storage tank is provided with a pH outlet, a one-way valve is arranged in the pH outlet, the pH outlet is connected with the upper part of the mixing pipe through a pipeline, one end of the mixing pipe is connected with a waste water storage tank through a pipeline, and the other end of the mixing pipe is connected with the cold coke pool through a pipeline.
3. The apparatus for treating high-concentration refractory wastewater according to claim 1, wherein: and a stirrer is arranged in the coke cooling tank.
4. The apparatus for treating high-concentration refractory wastewater according to claim 1, wherein: the first oil remover and the second oil remover have the same structure.
5. The apparatus for treating high-concentration refractory wastewater according to claim 4, wherein: first degreaser includes flocculating agent adder, micro-nano bubble generator, coagulant aid adder and reaction tank, the pipe connection is passed through to micro-nano bubble generator's one end the condenser, micro-nano bubble generator's the other end passes through the pipe connection the reaction tank, the flocculating agent adder is located between condenser and the micro-nano bubble generator, coagulant aid adder is located between micro-nano bubble generator and the reaction tank.
6. The apparatus for treating high-concentration refractory wastewater according to claim 5, wherein: including reaction zone and settling zone in the reaction tank, adopt the baffle to separate between the lower extreme of reaction zone and the lower extreme of settling zone, the upper end of reaction zone and the upper end intercommunication of settling zone, the bottom of reaction zone is connected micro-nano bubble generator, the lower part of settling zone is equipped with the outlet, the upper portion of reaction tank is equipped with scrapes sediment equipment.
7. A high-concentration degradation-resistant wastewater treatment process is characterized by comprising the following steps: a. adding acid to adjust the pH value of the wastewater and oxidize partial sulfide and refractory substances; b. diluting the wastewater after the pH value is adjusted by using cold coke water; c. introducing the diluted wastewater into a coke tower for pyrolysis treatment to obtain decomposed steam and decomposed wastewater; d. cooling and deoiling the decomposed steam to obtain dirty oil and deoiled wastewater, collecting the dirty oil and performing steam stripping on the deoiled wastewater to further treat ammonia nitrogen and sulfide in the dirty oil and the deoiled wastewater; e. performing solid-liquid separation on the decomposed wastewater to obtain coking powder and filtered waste liquid, collecting the coking powder, performing oil-water separation on the filtered waste liquid to obtain sump oil and deoiled water, and respectively collecting the sump oil and the deoiled water.
8. The process for treating high-concentration degradation-resistant wastewater according to claim 7, wherein the high-concentration degradation-resistant wastewater treatment apparatus according to any one of claims 1 to 3 is used.
9. The process of claim 7, wherein concentrated sulfuric acid is added in step a to adjust pH of the wastewater.
10. The process of claim 7, wherein the pyrolysis decomposition temperature in step c is 380 ℃.
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| CN202010758500.7A CN111925039A (en) | 2020-07-31 | 2020-07-31 | High-concentration degradation-resistant wastewater treatment device and treatment process |
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| CN202010758500.7A CN111925039A (en) | 2020-07-31 | 2020-07-31 | High-concentration degradation-resistant wastewater treatment device and treatment process |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491578A (en) * | 2011-12-27 | 2012-06-13 | 华东理工大学 | Method for stripping emptying tower top sewage by utilizing coke tower waste heat |
| CN203382711U (en) * | 2013-07-30 | 2014-01-08 | 上海优华系统集成技术有限公司 | Three sludge treatment and big steam blowing combined recovery device for oil refinery |
| CN104419444A (en) * | 2013-09-09 | 2015-03-18 | 中国石化工程建设有限公司 | Method for recycling water-containing sump oil by utilizing delayed coking device |
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN205241285U (en) * | 2015-11-28 | 2016-05-18 | 万达集团股份有限公司 | Oi contg sewage treatment system |
| CN212532624U (en) * | 2020-07-31 | 2021-02-12 | 中国石化北海炼化有限责任公司 | High concentration difficult degradation effluent treatment plant |
-
2020
- 2020-07-31 CN CN202010758500.7A patent/CN111925039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491578A (en) * | 2011-12-27 | 2012-06-13 | 华东理工大学 | Method for stripping emptying tower top sewage by utilizing coke tower waste heat |
| CN203382711U (en) * | 2013-07-30 | 2014-01-08 | 上海优华系统集成技术有限公司 | Three sludge treatment and big steam blowing combined recovery device for oil refinery |
| CN104419444A (en) * | 2013-09-09 | 2015-03-18 | 中国石化工程建设有限公司 | Method for recycling water-containing sump oil by utilizing delayed coking device |
| CN104891616A (en) * | 2015-05-28 | 2015-09-09 | 中国石油化工股份有限公司 | Oily wastewater purification method and system |
| CN205241285U (en) * | 2015-11-28 | 2016-05-18 | 万达集团股份有限公司 | Oi contg sewage treatment system |
| CN212532624U (en) * | 2020-07-31 | 2021-02-12 | 中国石化北海炼化有限责任公司 | High concentration difficult degradation effluent treatment plant |
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