CN110818120A - Intelligent treatment system and treatment method for oil-containing production wastewater - Google Patents
Intelligent treatment system and treatment method for oil-containing production wastewater Download PDFInfo
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- CN110818120A CN110818120A CN201911266344.6A CN201911266344A CN110818120A CN 110818120 A CN110818120 A CN 110818120A CN 201911266344 A CN201911266344 A CN 201911266344A CN 110818120 A CN110818120 A CN 110818120A
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- water
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- pump station
- production wastewater
- lifting pump
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- 239000002351 wastewater Substances 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 49
- 231100000719 pollutant Toxicity 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 239000010865 sewage Substances 0.000 claims abstract description 36
- 239000003208 petroleum Substances 0.000 claims abstract description 16
- 238000000746 purification Methods 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 13
- 235000019198 oils Nutrition 0.000 description 13
- 238000004065 wastewater treatment Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000002550 fecal effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
-
- 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
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
-
- 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
- C02F2209/42—Liquid level
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses an intelligent treatment system and a treatment method for oil-containing production wastewater, wherein the production wastewater is collected and gradually discharged into a lifting pump station through gravity flow; when the water pump is detected, the water pump is started, and the concentration of petroleum pollutants in part of the wastewater is detected by the pollutant online detection device; the control cabinet compares the real-time data with a set value, and the detected wastewater returns to the lifting pump station through a pipeline; the water level in the lifting pump station increases the water pump and starts, and according to a detection result, waste water in the lifting pump station is discharged along the path of the first electric valve or is subjected to subsequent purification treatment along the path of the second electric valve. The method has the advantages that the petroleum online detection device and the electric control are combined, the wastewater is separated by the pollutant online detection device, the sewage reaching the standard is directly discharged into a municipal pipe network without being treated, the resource consumption is reduced, and only the sewage not reaching the standard is treated, so that the treatment time is effectively shortened; the intelligent control reduces manual operation, thereby reducing the investment of operation and maintenance personnel and realizing automatic continuous operation.
Description
Technical Field
The invention relates to a system for treating production wastewater of railway and urban rail transit vehicle bases; in particular to an intelligent treatment system and a treatment method for oily production wastewater.
Background
Domestic sewage and production wastewater of vehicle bases of railway and urban rail transit are generally subjected to split-flow system, main pollutants of oily wastewater comprise petroleum, SS, COD and BOD, wherein the concentrations of the SS, COD and BOD are lower, and the designed inlet water concentration can be lower than the designed outlet water concentration. The production wastewater is easy to exceed the standard because of containing petroleum pollutants, does not meet the discharge requirement of 15 mg/L in the A-level standard of Sewage discharge to urban sewer water quality standard (GBT31962-2015), all vehicle bases of railway and rail traffic projects are required to be specially used for treating the production wastewater, if the method is adopted aiming at the only petroleum pollutants which do not reach the standard in water quality at present, the figure 1 is a schematic diagram of the existing production wastewater treatment system, the production wastewater enters an oil separation tank after passing through a lifting pump station, is treated into qualified water quality through integrated air floatation equipment, and enters a municipal sewage pipe network without pollution to achieve the aim of environmental protection. However, the system treats all the production wastewater, namely, the production wastewater is also treated, so that the energy waste is serious, and the environmental protection and energy conservation are not facilitated.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provide an intelligent treatment system and a treatment method for oil-containing production wastewater, which are energy-saving, environment-friendly and high in automation degree.
The invention adopts the technical scheme that the intelligent treatment system for the oil-containing production wastewater comprises a lifting pump station, an oil separation tank and integrated air floatation equipment which are connected through pipelines; the lifting pump station comprises 2 water outlet pipelines and 1 water inlet pipeline; a detection water pump and a pollutant online detection device are arranged between 1 water outlet pipe and the water inlet pipeline, and the water outlet pipe of the pollutant online detection device is connected with the water inlet pipeline of the lifting pump station; and a second electric valve and a first electric valve are respectively arranged between the other water outlet pipe of the lifting pump station and the oil separation tank and between the other water outlet pipe of the lifting pump station and the municipal sewage pipe network.
The pollutant on-line detection device comprises a control cabinet, the pollutant on-line detection device feeds detection signals back to the control cabinet, and the control cabinet controls the opening and closing of the first electric valve and the second electric valve.
The treatment method of the intelligent treatment system for the oil-containing production wastewater comprises the following steps:
A. the production wastewater is collected by an outdoor pipe network and then is gradually discharged into a lifting pump station through gravity flow;
B. when the water level in the lifting pump station reaches the liquid level ①, the pump starting liquid level of the detection water pump is reached, the detection water pump is started, and part of the production wastewater passes through the online pollutant detection device to carry out petroleum pollutant concentration detection;
C. when the water level in the lifting pump station increases to the liquid level ②, the water pump in the lifting pump station is started, and according to a real-time detection result, waste water in the lifting pump station is discharged along the path of the first electric valve or is subjected to subsequent purification treatment along the path of the second electric valve.
The online pollutant detection device feeds detection data back to the control cabinet, the control cabinet judges that the water quality reaches the standard when the concentration of the pollutants is lower than a set value, the first electric valve is opened, the second electric valve is closed, and sewage meeting the municipal sewage requirement is directly discharged to a municipal sewage pipe network; when the switch board judges that pollutant concentration is higher than the setting value, first electric valve is the normally closed state, and second electric valve is the open mode, carries out purification treatment to the sewage that does not conform to municipal sewage requirement.
And the purification treatment comprises the step of entering an oil separation tank and integrated air floatation equipment, and the treated sewage is discharged into a municipal sewage pipe network after reaching the standard.
The pollutant on-line detection device can detect the concentration of pollutants in water at regular time and equal intervals, and data transmission has multiple signal outputs of RS232\ RS485\4-20mA, so that the concentration value of the pollutants is visually displayed.
The invention has the advantages that the technology combining the petroleum on-line detection device and the electric control is adopted, the production wastewater is separated by the pollutant on-line detection device, the sewage reaching the standard is directly discharged into a municipal pipe network without being treated, the resource consumption is reduced, the electric energy resource can be effectively saved, and only the wastewater which does not reach the standard is treated, so the treatment time is effectively shortened, and the intelligent water treatment of the production wastewater is realized; the intelligent control reduces manual operation, thereby reducing the investment of operation and maintenance personnel and realizing automatic continuous operation.
Drawings
FIG. 1 is a schematic view of a prior art process wastewater treatment system;
FIG. 2 is a schematic view of a process wastewater treatment system according to the present invention;
fig. 3 is a schematic view of the intelligent control electric valve opening of the online pollutant detection device.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 2 and fig. 3, the intelligent treatment system for oil-containing production wastewater of the present invention comprises a lifting pump station, an oil separation tank and an integrated air flotation device which are connected by pipelines; the lifting pump station comprises 2 water outlet pipelines and 1 water inlet pipeline; a detection water pump and a pollutant online detection device are arranged between 1 water outlet pipe and the water inlet pipeline, and the water outlet pipe of the pollutant online detection device is connected with the water inlet pipeline of the lifting pump station; and a first electric valve is arranged between the other water outlet pipe of the lifting pump station and the municipal sewage pipe network and used for controlling the first electric valve to directly discharge sewage meeting the municipal sewage requirement. And a second electric valve is arranged between the other water outlet pipe of the lifting pump station and the oil separation tank, and is used for controlling the second electric valve to purify sewage which does not meet the requirements of municipal sewage.
The pollutant on-line detection device comprises a control cabinet, the pollutant on-line detection device feeds detection signals back to the control cabinet, and the control cabinet controls the opening and closing of the first electric valve and the second electric valve.
The invention relates to a treatment method of an intelligent treatment system for oil-containing production wastewater, which comprises the following steps:
A. the first electric valve is in a normally closed state, and the second electric valve is in a normally open state; the production wastewater is collected by an outdoor pipe network and then is gradually discharged into a lifting pump station through gravity flow;
B. when the water level in the lifting pump station reaches the liquid level ①, the pump starting liquid level of the detection water pump is reached, the detection water pump is started, and part of the production wastewater passes through the pollutant online detection device to carry out petroleum pollutant concentration detection;
C. when the water level in the lifting pump station is increased to ②, the water pump in the lifting pump station is started, according to a real-time detection result, when the control cabinet judges that the concentration of pollutants is lower than a set value, the water quality reaches the standard, the first electric valve is opened, the second electric valve is closed, and sewage meeting the municipal sewage requirement is directly discharged to a municipal sewage pipe network;
when the switch board judges that pollutant concentration is higher than the setting value, first electric valve is the normally closed state, and the second electric valve is normally open state, carries out purification treatment to the sewage that does not conform to municipal sewage requirement. And the purification treatment comprises the step of entering an oil separation tank and integrated air floatation equipment, and the treated sewage is discharged into a municipal sewage pipe network after reaching the standard.
Waste water in the pump station will be promoted to the pump station in the water pump is taken away gradually, and when the water level reduced to water level ① in the pump station, detect water pump and promote the interior water pump shutdown of pump station, get back to initial condition again this moment, so circulate and realize oily waste water intelligent processing.
The detection device can interlockingly control the electric valve, and the electric valve is selected to be opened; the pollutant on-line detection device can detect the concentration of pollutants in water at regular time and equal intervals, the data transmission has multiple signal outputs of RS232\ RS485\4-20mA, the concentration value of the pollutants is visually displayed, the sample analysis can be continuously carried out, and qualitative and quantitative analysis can be carried out on the petroleum pollutants.
In the process for treating the production wastewater of the railway and urban rail transit vehicle bases, aiming at the only unqualified petroleum pollutants in the water quality, the technology of combining a petroleum online detection device and electric control is adopted, the intelligent water treatment technical scheme of the production wastewater is realized, the economic benefit and the environmental benefit are greatly improved with small investment, the production wastewater of the vehicle bases is prevented from being in an irrational, disordered and extensive production mode, and the standardization is realized.
The invention aims to detect and judge main petroleum pollutants in oily wastewater, if the petroleum pollutants in water quality are higher than relevant standards in the Water quality Standard of Sewage discharge to urban sewer (GBT31962-2015), the production wastewater does not reach the standard, and the wastewater enters wastewater treatment equipment for subsequent treatment; if the concentration is lower than the standard value, the sewage is directly discharged into a municipal sewage pipe network without wastewater treatment. The operation and maintenance cost of the production wastewater treatment is reduced, the operation and maintenance difficulty is reduced, a selection judgment mechanism is innovatively introduced into the water treatment field, and the automatic, low-consumption and high-efficiency water treatment is realized on the premise of realizing the standard discharge.
Compared with the conventional treatment process, the cost of the newly added accessories such as the water suction pump, the first electric valve, the second electric valve, the petroleum on-line monitoring device, the pipeline valve and the like is about 6 ten thousand yuan. If the petroleum pollutants in the inlet water quality of the wastewater treatment reach the standard, the subsequent water treatment is not carried out, 82.4 yuan can be saved every day according to the consideration of 80 m/d of the daily treatment water amount of a vehicle base, and the operation cost is saved by 3.0 ten thousand yuan every year
It is to be noted that the scope of protection of the invention is not limited to the specific examples described above, but according to the basic technical idea of the invention, for example, on pH, COD, BOD, NH3The indexes of pollutants such as total phosphorus, total nitrogen, SS, animal and vegetable oil, fecal coliform bacteria and the like can be derived by adopting the process to achieve the aim of the invention, and the embodiments can be conjointed by ordinary technicians in the field without creative labor, and all belong to the protection scope of the invention.
Claims (6)
1. An intelligent treatment system for oily production wastewater comprises a lifting pump station, an oil separation tank and integrated air floatation equipment which are connected through pipelines; the system is characterized in that the lifting pump station comprises 2 water outlet pipelines and 1 water inlet pipeline; a detection water pump and a pollutant online detection device are arranged between 1 water outlet pipe and the water inlet pipeline, and the water outlet pipe of the pollutant online detection device is connected with the water inlet pipeline of the lifting pump station; and a second electric valve and a first electric valve are respectively arranged between the other water outlet pipe of the lifting pump station and the oil separation tank and between the other water outlet pipe of the lifting pump station and the municipal sewage pipe network.
2. The intelligent treatment system for the oil-containing production wastewater according to claim 1, wherein the online pollutant detection device comprises a control cabinet, the online pollutant detection device feeds back detection signals to the control cabinet, and the control cabinet controls the first electric valve and the second electric valve to be opened and closed.
3. The treatment method utilizing the intelligent treatment system for the oil-containing production wastewater according to claim 1, characterized by comprising the following steps:
A. the production wastewater is collected by an outdoor pipe network and then is gradually discharged into a lifting pump station through gravity flow;
B. when the water level in the lifting pump station reaches the liquid level ①, the pump starting liquid level of the detection water pump is reached, the detection water pump is started, and part of the production wastewater passes through the online pollutant detection device to carry out petroleum pollutant concentration detection;
C. when the water level in the lifting pump station increases to the liquid level ②, the water pump in the lifting pump station is started, and according to a real-time detection result, waste water in the lifting pump station is discharged along the path of the first electric valve or is subjected to subsequent purification treatment along the path of the second electric valve.
4. The treatment method of the intelligent treatment system for the oil-containing production wastewater according to claim 3, wherein the online pollutant detection device feeds detection data back to the control cabinet, the control cabinet judges that the water quality reaches the standard when the concentration of the pollutants is lower than a set value, the first electric valve is opened, the second electric valve is closed, and the sewage meeting the municipal sewage requirement is directly discharged to a municipal sewage pipe network; when the switch board judges that pollutant concentration is higher than the setting value, first electric valve is the normally closed state, and second electric valve is the open mode, carries out purification treatment to the sewage that does not conform to municipal sewage requirement.
5. The treatment method of the intelligent treatment system for the oil-containing production wastewater according to claim 3, wherein the purification treatment comprises entering an oil separation tank and an integrated air floatation device, and discharging the oil-containing production wastewater after reaching the standard into a municipal sewage pipe network.
6. The treatment method of the intelligent treatment system for the oil-containing production wastewater as claimed in claim 3, wherein the pollutant online detection device can detect the concentration of pollutants in water at regular time and equal interval, and the data transmission has multiple signal outputs of RS232\ RS485\4-20mA, so as to visually display the concentration value of the pollutants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911266344.6A CN110818120B (en) | 2019-12-11 | 2019-12-11 | Intelligent treatment system and method for oily production wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911266344.6A CN110818120B (en) | 2019-12-11 | 2019-12-11 | Intelligent treatment system and method for oily production wastewater |
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| CN110818120A true CN110818120A (en) | 2020-02-21 |
| CN110818120B CN110818120B (en) | 2023-12-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604132A (en) * | 2015-12-26 | 2016-05-25 | 青岛静水机电设备股份有限公司 | Non-negative-pressure water supply device including water quality improvement module |
| CN107746138A (en) * | 2017-10-25 | 2018-03-02 | 威海职业学院 | A kind of comprehensive treatment system for ballast water of ship |
| JP3216173U (en) * | 2018-02-28 | 2018-05-17 | 株式会社ティービーエム | Oil separation and management equipment from oil-containing wastewater |
| CN108529774A (en) * | 2018-04-17 | 2018-09-14 | 苏州迪维勒普信息科技有限公司 | Industrial Wastewater Treatment exhausting control manages system |
| CN211570284U (en) * | 2019-12-11 | 2020-09-25 | 中国铁路设计集团有限公司 | Intelligent processing system of oily industrial waste water |
-
2019
- 2019-12-11 CN CN201911266344.6A patent/CN110818120B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604132A (en) * | 2015-12-26 | 2016-05-25 | 青岛静水机电设备股份有限公司 | Non-negative-pressure water supply device including water quality improvement module |
| CN107746138A (en) * | 2017-10-25 | 2018-03-02 | 威海职业学院 | A kind of comprehensive treatment system for ballast water of ship |
| JP3216173U (en) * | 2018-02-28 | 2018-05-17 | 株式会社ティービーエム | Oil separation and management equipment from oil-containing wastewater |
| CN108529774A (en) * | 2018-04-17 | 2018-09-14 | 苏州迪维勒普信息科技有限公司 | Industrial Wastewater Treatment exhausting control manages system |
| CN211570284U (en) * | 2019-12-11 | 2020-09-25 | 中国铁路设计集团有限公司 | Intelligent processing system of oily industrial waste water |
Non-Patent Citations (2)
| Title |
|---|
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