CN211521944U - Printing and dyeing wastewater treatment system - Google Patents
Printing and dyeing wastewater treatment system Download PDFInfo
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- CN211521944U CN211521944U CN201922028914.XU CN201922028914U CN211521944U CN 211521944 U CN211521944 U CN 211521944U CN 201922028914 U CN201922028914 U CN 201922028914U CN 211521944 U CN211521944 U CN 211521944U
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Abstract
The utility model provides a printing and dyeing wastewater treatment system, which comprises a sizing wastewater treatment unit, a domestic sewage treatment unit, a washing wastewater treatment unit and a printing and dyeing wastewater treatment unit; the water washing wastewater treatment unit comprises a first filtering device, a first coagulation air floatation tank, a hydrolysis acidification tank, a biological nitrogen and phosphorus removal device and an MBR device which are sequentially communicated through pipelines; the water outlet pipeline of the sizing wastewater treatment unit is communicated with the pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device; the water outlet pipeline of the printing and dyeing wastewater treatment unit is communicated with a pipeline between the first coagulation air flotation tank and the hydrolysis acidification tank; the water outlet pipeline of the domestic sewage treatment unit is communicated with the pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device. The utility model discloses a printing and dyeing wastewater treatment system has realized the waste water simultaneous processing of four different grade types in printing and dyeing industry garden, and drainage quality of water is high, does not receive the influence of the waste water quality of water of intaking, and the operation is stable, and investment cost and running cost are low.
Description
Technical Field
The utility model belongs to the waste water treatment equipment field, concretely relates to printing and dyeing wastewater treatment system.
Background
At present, all industrial parks in the domestic textile dyeing and finishing industry are comprehensive industrial parks. According to the different water quality characteristics of processed products of enterprises in industrial parks in the textile dyeing and finishing industry and different types of wastewater, wastewater generated in parks is divided into sizing wastewater, washing wastewater, printing and dyeing wastewater and domestic sewage.
For the above-mentioned four types of garden waste water, if adopt unified treatment process, can't be to the waste water treatment of different types, if unify according to low quality of water and the high discharge water quality design printing and dyeing wastewater treatment system of intaking, engineering cost improves, and the waste water yield of different grade type is difficult to balance, receives intake quality of water fluctuation to influence great, and production stability is poor, and it is difficult to stabilize up to standard to go out water quality. All waste water is treated in a unified way, so that investment waste is caused, and the overall operation cost is increased.
For the above four types of park wastewater, if different treatment processes are adopted for different water qualities, a plurality of different wastewater treatment systems need to be designed simultaneously to be suitable for the different water qualities, resulting in large overall investment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the shortcomings of the prior art and provide a printing and dyeing wastewater treatment system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a printing and dyeing wastewater treatment system comprises a sizing wastewater treatment unit, a domestic sewage treatment unit, a washing wastewater treatment unit and a printing and dyeing wastewater treatment unit;
the washing wastewater treatment unit comprises a first filtering device, a first coagulation air floatation tank, a hydrolysis acidification tank, a biological nitrogen and phosphorus removal device and an MBR device which are sequentially communicated through pipelines;
the sizing wastewater treatment unit comprises a second filtering device, a second coagulation air flotation tank, a first aerobic tank and an oxidation device which are sequentially communicated through pipelines, wherein the oxidation device is provided with a water outlet pipeline, and the water outlet pipeline of the oxidation device is communicated on a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device;
the printing and dyeing wastewater treatment unit comprises a third filtering device, a third coagulation air floatation tank, an anaerobic tank and a second aerobic tank which are sequentially communicated through pipelines, wherein the second aerobic tank is provided with a water outlet pipeline, and the water outlet pipeline of the second aerobic tank is communicated with a pipeline between the first coagulation air floatation tank and the hydrolysis acidification tank;
the domestic sewage treatment unit is provided with a water outlet pipeline, and the water outlet pipeline of the domestic sewage treatment unit is communicated with a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device.
The dyeing wastewater treatment system comprises a sizing wastewater treatment unit, a domestic sewage treatment unit, a washing wastewater treatment unit and a dyeing wastewater treatment unit, wherein the washing wastewater treatment unit removes most suspended matters and floating matters in the washing wastewater after the washing wastewater is treated by a first filtering device, then the washing wastewater enters a first coagulation air floatation tank for treatment, the washing wastewater is flocculated to remove solid-phase substances in the water, then the washing wastewater enters a hydrolysis acidification tank, macromolecular organic matters are decomposed into micromolecular organic matters under the action of anaerobic bacteria, and finally the washing wastewater enters a biological nitrogen and phosphorus removal device and an MBR device for biological treatment; the slashing wastewater treatment unit is used for treating the slashing wastewater through a second filtering device, removing most suspended matters and floating matters in the slashing wastewater, then treating the slashing wastewater in a second coagulation air floatation tank, removing solid-phase substances through air floatation after the slashing wastewater is treated by a coagulation agent and a flocculation agent, then degrading partial organic matters in an aerobic tank and an oxidation tank to reduce the subsequent treatment pressure, and then biologically treating the slashing wastewater in a biological nitrogen and phosphorus removal device and an MBR device; most suspended solids and floaters in the printing and dyeing wastewater are removed after the printing and dyeing wastewater is treated by the printing and dyeing wastewater treatment unit through the third filtering device, then the printing and dyeing wastewater is treated by the third coagulation air flotation tank, after solid-phase substances are removed through air flotation after the printing and dyeing wastewater is treated by the coagulation agent and the flocculation agent, the printing and dyeing wastewater is treated by the anaerobic tank, the COD value of the printing and dyeing wastewater is greatly reduced, then the printing and dyeing wastewater enters the hydrolysis acidification tank, the macromolecular organic substances are further decomposed into micromolecular organic substances, and finally the printing and dyeing wastewater enters the biological nitrogen and phosphorus removal device and the MBR device for biological treatment. For the printing and dyeing wastewater treatment system, the wastewater with different water qualities is firstly treated differently according to separation and then intensively enters the biological nitrogen and phosphorus removal device and the MBR device for treatment, so that the wastewater with different types is classified, collected and treated according to quality.
Preferably, the MBR device is provided with a water outlet pipeline, and the water outlet pipeline of the MBR device is communicated with an ozone oxidation device.
The printing and dyeing wastewater treatment system is provided with the ozone oxidation device behind the MBR device, so that sizing wastewater, domestic sewage, washing wastewater and printing and dyeing wastewater are further subjected to ozone oxidation treatment after being sequentially treated by the biological nitrogen and phosphorus removal device and the MBR device, organic matters in discharged water are further degraded, the COD value of the organic matters in the discharged water is reduced, and the system can be recycled as production water of a printing and dyeing industrial park.
Preferably, the ozone oxidation device is provided with a water outlet pipeline, and the water outlet pipeline of the ozone oxidation device is communicated with a printing and dyeing production water storage tank.
The discharged water treated by the printing and dyeing wastewater treatment system can be directly discharged or collected and stored in a printing and dyeing production water storage tank to supply the printing and dyeing industrial production water.
Preferably, the first filtering device, the second filtering device and the third filtering device are all grilles.
The printing and dyeing wastewater treatment system takes the grating as a filtering device, so that the treatment flow is large and the filtering effect is good.
Preferably, shallow air flotation machines are arranged in the second coagulation air flotation tank and the third coagulation air flotation tank.
Preferably, the oxidation device is a fenton oxidation pond.
The oxidation device of the printing and dyeing wastewater treatment system is a Fenton oxidation pond which passes through H under an acid environment2O2The strong oxidizing property of the method decomposes pollutants which are difficult to be directly utilized by microorganisms in the sizing wastewater into easily decomposed substances, and simultaneously directly oxidizes partial pollutants into H2O and CO2The treatment efficiency is improved, and the treatment cost is saved.
Preferably, the MBR device is communicated with a return pipeline, the starting end of the return pipeline is communicated with an water outlet pipeline of the MBR device, and the tail end of the return pipeline is communicated with a water inlet pipeline of the fenton oxidation pond.
The printing and dyeing wastewater treatment system is provided with the return pipeline between the MBR device and the Fenton oxidation pond, and water treated by the MBR device is subjected to circular treatment in the Fenton oxidation pond, so that the quality of discharged water is improved.
Preferably, the biological nitrogen and phosphorus removal device is an A2/O process reaction tank.
Preferably, the MBR device is an external MBR membrane bioreactor.
Preferably, a UASB reactor is arranged in the anaerobic tank.
Preferably, the washing wastewater treatment unit, the sizing wastewater treatment unit, the printing and dyeing wastewater treatment unit and the domestic sewage treatment unit all comprise wastewater storage tanks;
a water outlet pipeline is arranged in a wastewater storage tank of the washing wastewater treatment unit and communicated with the first filtering device;
a water outlet pipeline is arranged in a wastewater storage tank of the sizing wastewater treatment unit, and the water outlet pipeline of the sizing wastewater storage tank is communicated with the second filtering device;
a water outlet pipeline is arranged in a wastewater storage tank of the printing and dyeing wastewater treatment unit, and the water outlet pipeline of the printing and dyeing wastewater storage tank is communicated with the third filtering device;
the wastewater storage tank of the domestic sewage treatment unit is communicated with a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device through a water outlet pipeline of the domestic sewage treatment unit.
The beneficial effects of the utility model reside in that: the utility model provides a printing and dyeing wastewater treatment system, the utility model discloses a printing and dyeing wastewater treatment system has following advantage:
(1) the utility model discloses a printing and dyeing wastewater treatment system divide into four types of sizing waste water, washing waste water, printing and dyeing waste water and domestic sewage with printing and dyeing industry garden enterprise's waste water, then to the quality of water characteristics of different grade type waste water, at first carry out classification respectively after concentrate again and utilize biological nitrogen and phosphorus removal device and MBR device to handle, improve waste water treatment efficiency, avoided the investment extravagant.
(2) The utility model discloses a printing and dyeing wastewater treatment system operation is stable, has avoided the waste water to intake the treatment effeciency that the quality of water fluctuation leads to greatly to reduce and make the relatively poor problem of drainage quality of water.
(3) The utility model discloses a printing and dyeing wastewater treatment system adopts different pretreatment modes and the same follow-up treatment mode to combine printing and dyeing industry garden waste water, and the medicament cost of avoiding same waste water treatment system to bring is too high, and the wasting of resources has reduced the operation risk, and is energy-conserving to increase.
Drawings
FIG. 1 is a schematic structural view of a printing and dyeing wastewater treatment system according to an embodiment of the present invention. The system comprises a washing wastewater storage tank, a first grid, a first coagulation air flotation tank, a hydrolysis acidification tank, a 5A 2/O process reaction tank, an external MBR (membrane bioreactor), a 7 ozone oxidation device, A8 sizing wastewater storage tank, a 9 second grid, a 10 second coagulation air flotation tank, a 11 first aerobic tank, a 12 Fenton oxidation tank, a 13 return pipeline, a 14 domestic sewage storage tank, a 15 printing and dyeing wastewater storage tank, a 16 third grid, a 17 third coagulation air flotation tank, a 18 anaerobic tank, a 19 second aerobic tank, a 20 printing and dyeing production water storage tank.
Detailed Description
For better illustrating the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments.
Example 1
As the printing and dyeing wastewater treatment system of the embodiment of the utility model, as shown in figure 1, the printing and dyeing wastewater treatment system comprises a sizing wastewater treatment unit, a domestic sewage treatment unit, a washing wastewater treatment unit and a printing and dyeing wastewater treatment unit;
the washing wastewater treatment unit comprises a washing wastewater storage tank 1, a first filtering device 2, a first coagulation air flotation tank 3, a hydrolysis acidification tank 4, a biological nitrogen and phosphorus removal device 5, an external MBR (membrane bioreactor) 6, an ozone oxidation device 7 and a printing and dyeing production water storage tank 20 which are communicated with one another by pipelines in sequence;
the slashing wastewater treatment unit comprises a slashing wastewater storage tank 8, a second filtering device 9, a second coagulation air flotation tank 10, a first aerobic tank 11 and a Fenton oxidation tank 12 which are sequentially communicated through pipelines, wherein the Fenton oxidation tank 12 is provided with a water outlet pipeline, the water outlet pipeline of the Fenton oxidation tank 12 is communicated with a pipeline between the hydrolysis acidification tank 4 and the biological nitrogen and phosphorus removal device 5, and a shallow air flotation machine is arranged in the second coagulation air flotation tank 10;
the printing and dyeing wastewater treatment unit comprises a printing and dyeing wastewater storage tank 15, a third filtering device 16, a third coagulation air floatation tank 17, an anaerobic tank 18 and a second aerobic tank 19 which are sequentially communicated through pipelines, wherein the second aerobic tank 19 is provided with a water outlet pipeline, the water outlet pipeline of the second aerobic tank 19 is communicated on a pipeline between the first coagulation air floatation tank 3 and the hydrolysis acidification tank 4, an UASB reactor is arranged in the anaerobic tank 18, and a shallow air floatation machine is arranged in the third coagulation air floatation tank 17;
the domestic sewage treatment unit comprises a domestic sewage storage tank 14 and a water outlet pipeline which are sequentially communicated, and the water outlet pipeline of the domestic sewage treatment unit is communicated with a pipeline between the hydrolysis acidification tank 4 and the biological nitrogen and phosphorus removal device 5;
the external MBR (membrane bioreactor) 6 is communicated with a return pipeline 13, the starting end of the return pipeline 13 is communicated with a water outlet pipeline of the external MBR 6, and the tail end of the return pipeline 13 is communicated with a water inlet pipeline of the Fenton oxidation pond 12.
Furthermore, the first filtering device, the second filtering device and the third filtering device are all gratings. The grating is used as a filtering device, so that the treatment flow is large and the filtering effect is good.
Further, the biological nitrogen and phosphorus removal device is an A2/O process reaction tank. The A2/O process reaction tank is used as a biological nitrogen and phosphorus removal device, and the treatment effect on the wastewater is better.
The printing and dyeing wastewater treatment system of the embodiment realizes the simultaneous treatment of wastewater of four different types in the printing and dyeing industrial park, has high drainage water quality, is not influenced by the quality of inlet wastewater, operates stably, and has low investment cost and operation cost.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A printing and dyeing wastewater treatment system is characterized by comprising a sizing wastewater treatment unit, a domestic sewage treatment unit, a washing wastewater treatment unit and a printing and dyeing wastewater treatment unit;
the washing wastewater treatment unit comprises a first filtering device, a first coagulation air floatation tank, a hydrolysis acidification tank, a biological nitrogen and phosphorus removal device and an MBR device which are sequentially communicated through pipelines;
the sizing wastewater treatment unit comprises a second filtering device, a second coagulation air flotation tank, a first aerobic tank and an oxidation device which are sequentially communicated through pipelines, wherein the oxidation device is provided with a water outlet pipeline, and the water outlet pipeline of the oxidation device is communicated on a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device;
the printing and dyeing wastewater treatment unit comprises a third filtering device, a third coagulation air floatation tank, an anaerobic tank and a second aerobic tank which are sequentially communicated through pipelines, wherein the second aerobic tank is provided with a water outlet pipeline, and the water outlet pipeline of the second aerobic tank is communicated with a pipeline between the first coagulation air floatation tank and the hydrolysis acidification tank;
the domestic sewage treatment unit is provided with a water outlet pipeline, and the water outlet pipeline of the domestic sewage treatment unit is communicated with a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device.
2. The printing and dyeing wastewater treatment system according to claim 1, wherein the MBR unit is provided with a water outlet pipeline, and the water outlet pipeline of the MBR unit is communicated with an ozone oxidation unit.
3. The printing and dyeing wastewater treatment system according to claim 2, characterized in that the ozone oxidation device is provided with a water outlet pipeline, and the water outlet pipeline of the ozone oxidation device is communicated with a printing and dyeing production water storage tank.
4. The printing and dyeing wastewater treatment system according to claim 1, characterized in that the first, second and third filtration devices are all grates.
5. The printing and dyeing wastewater treatment system according to claim 1, characterized in that shallow air flotation machines are arranged in the second coagulation air flotation tank and the third coagulation air flotation tank.
6. The printing and dyeing wastewater treatment system according to claim 1, characterized in that the oxidation unit is a fenton oxidation pond.
7. The printing and dyeing wastewater treatment system according to claim 6, wherein the MBR device is communicated with a return line, the starting end of the return line is communicated with an outlet line of the MBR device, and the tail end of the return line is communicated with an inlet line of the Fenton oxidation pond.
8. The printing and dyeing wastewater treatment system according to claim 1, wherein the biological nitrogen and phosphorus removal device is an A2/O process reaction tank.
9. The printing and dyeing wastewater treatment system according to claim 1, wherein the MBR device is an external MBR membrane bioreactor, and a UASB reactor is arranged in the anaerobic tank.
10. The printing and dyeing wastewater treatment system according to claim 1, wherein the washing wastewater treatment unit, the sizing wastewater treatment unit, the printing and dyeing wastewater treatment unit, and the domestic wastewater treatment unit each comprise a wastewater storage tank;
a water outlet pipeline is arranged in a wastewater storage tank of the washing wastewater treatment unit and communicated with the first filtering device;
a sizing wastewater storage tank of the sizing wastewater treatment unit is provided with a water outlet pipeline, and the water outlet pipeline of the sizing wastewater storage tank is communicated with the second filtering device;
a printing and dyeing wastewater storage tank of the printing and dyeing wastewater treatment unit is provided with a water outlet pipeline, and the water outlet pipeline of the printing and dyeing wastewater storage tank is communicated with the third filtering device;
the wastewater storage tank of the domestic sewage treatment unit is communicated with a pipeline between the hydrolysis acidification tank and the biological nitrogen and phosphorus removal device through a water outlet pipeline of the domestic sewage treatment unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922028914.XU CN211521944U (en) | 2019-11-20 | 2019-11-20 | Printing and dyeing wastewater treatment system |
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| CN201922028914.XU CN211521944U (en) | 2019-11-20 | 2019-11-20 | Printing and dyeing wastewater treatment system |
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| CN211521944U true CN211521944U (en) | 2020-09-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746054A (en) * | 2019-11-20 | 2020-02-04 | 深圳雅居乐环保科技有限公司 | Printing and dyeing wastewater treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746054A (en) * | 2019-11-20 | 2020-02-04 | 深圳雅居乐环保科技有限公司 | Printing and dyeing wastewater treatment system |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210730 Address after: 537000 Zhongcun, Zhangmu Town, Fumian District, Yulin City, Guangxi Zhuang Autonomous Region (Yulin (Fumian) energy conservation and Environmental Protection Industrial Park) Patentee after: Yulin Xintao Environmental Protection Technology Co.,Ltd. Patentee after: HAINAN YAQING ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. Address before: 518052-14017, 14th floor, main tower, shipping center, 59 Linhai Avenue, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen City, Guangdong Province Patentee before: SHENZHEN AGILE ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: Yulin Xintao Environmental Protection Technology Co.,Ltd. Patentee before: HAINAN YAQING ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 537000 Zhongcun, Zhangmu Town, Fumian District, Yulin City, Guangxi Zhuang Autonomous Region (Yulin (Fumian) energy conservation and Environmental Protection Industrial Park) Patentee after: Yulin Xintao Environmental Protection Technology Co.,Ltd. Patentee after: Yaqing Ecological Technology Co., Ltd Address before: 537000 Zhongcun, Zhangmu Town, Fumian District, Yulin City, Guangxi Zhuang Autonomous Region (Yulin (Fumian) energy conservation and Environmental Protection Industrial Park) Patentee before: Yulin Xintao Environmental Protection Technology Co.,Ltd. Patentee before: Hainan Yaqing Environmental Protection Engineering Co., Ltd |