CN113683251A - Waste liquid reduction treatment equipment and waste liquid reduction treatment method - Google Patents

Waste liquid reduction treatment equipment and waste liquid reduction treatment method Download PDF

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Publication number
CN113683251A
CN113683251A CN202111162256.9A CN202111162256A CN113683251A CN 113683251 A CN113683251 A CN 113683251A CN 202111162256 A CN202111162256 A CN 202111162256A CN 113683251 A CN113683251 A CN 113683251A
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CN
China
Prior art keywords
waste liquid
primary
water
water tank
membrane
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Pending
Application number
CN202111162256.9A
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Chinese (zh)
Inventor
杨厚连
杨玉龙
田洪久
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Shanghai Lishun Environmental Protection Engineering Co ltd
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Shanghai Lishun Environmental Protection Engineering Co ltd
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Priority to CN202111162256.9A priority Critical patent/CN113683251A/en
Publication of CN113683251A publication Critical patent/CN113683251A/en
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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
    • 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
    • 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
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • 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
    • 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
    • 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
    • C02F2303/04—Disinfection

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The invention discloses a waste liquid reduction treatment device and a waste liquid treatment method, wherein the waste liquid reduction treatment device comprises: the waste liquid pool, the evaporator, the distillation water tank, the primary membrane high-pressure pump, the primary membrane separation device, the primary membrane water tank, the PH regulation device, the secondary high-pressure pump and the secondary membrane separation device are communicated in sequence; wherein, the PH adjusting device is used for adjusting the PH value of the waste liquid in the treatment. Compared with the prior art, the waste liquid treatment equipment can filter the waste liquid, so that the waste liquid can meet the national discharge standard.

Description

Waste liquid reduction treatment equipment and waste liquid reduction treatment method
Technical Field
The embodiment of the invention relates to the field of environmental protection, in particular to a waste liquid reduction treatment device and a waste liquid reduction treatment method.
Background
Water is a source of life, water is a valuable resource for human beings, and nothing in life leaves water. At present, a large amount of waste liquid is generated in industrial production, and if the waste liquid is directly discharged into the natural environment, irreversible environmental pollution is caused. Waste liquid is one of the most difficult industrial wastewater categories to treat in the industrial production process. Generally has the characteristics of high pollutant concentration, high treatment difficulty and the like.
Therefore, a waste liquid reduction treatment device is needed to treat industrial waste liquid.
Disclosure of Invention
The invention aims to provide a waste liquid reduction treatment device, so that the treated waste liquid can meet the discharge standard and can be directly discharged into the natural environment or put into production again.
In order to solve the above technical problem, an embodiment of the present invention provides a waste liquid reduction treatment apparatus, including: the waste liquid pool, the evaporator, the distillation water tank, the primary membrane high-pressure pump, the primary membrane separation device, the primary membrane water tank, the PH regulation device, the secondary high-pressure pump and the secondary membrane separation device are communicated in sequence;
wherein, the PH adjusting device is used for adjusting the PH value of the waste liquid in the treatment.
Compared with the prior art, the waste liquid treatment equipment can filter the waste liquid, so that the waste liquid can meet the national discharge standard.
In addition, the waste liquid reduction treatment apparatus further includes: and the mud slinger is connected with the evaporator, receives the thick paste waste left after the evaporator evaporates and is operable to dewater the received thick paste waste.
In addition, the mud slinger is communicated with the waste liquid pool.
In addition, a first-stage booster pump and a security filter are sequentially connected between the distilled water tank and the first-stage high-pressure pump.
In addition, a second-stage booster pump and a precise filter are connected between the first-stage membrane water tank and the second-stage high-pressure pump.
In addition, the waste liquid reduction treatment equipment further comprises a secondary membrane water tank communicated with the secondary membrane separation device and a sterilization device arranged in the secondary membrane water tank.
The invention also provides a waste liquid reduction treatment method, which adopts the waste liquid reduction treatment equipment, and the waste liquid reduction production method comprises the following steps:
feeding the waste liquid into the evaporator, which separates the waste liquid into a thick paste waste and distilled water;
distilled water flows into the distilled water tank;
inputting the distilled water in the distilled water tank into security filtration by adopting a first-stage booster pump, and performing primary filtration on the distilled water by adopting the security filtration to form primary filtered water;
the primary membrane separation device is communicated with the security filter, and primary separation is carried out on the liquid to be treated flowing into the primary membrane separation device to form primary separation water;
the primary separated water flows into the primary membrane water tank;
inputting the liquid to be treated into the primary membrane separation device by adopting the primary high-pressure pump;
inputting water in the primary membrane water tank into a secondary filter by adopting a secondary booster pump, and carrying out secondary filtration on the primary separated water by adopting the secondary filter to form secondary filtered water;
the PH adjusting device is communicated with the primary filtering water device to adjust the PH value of the liquid to be treated;
the secondary membrane separation device is communicated with the PH regulation device, and secondary separation is carried out on the liquid to be treated to form secondary separation water;
and inputting the liquid to be treated into the secondary membrane separation device by adopting the secondary high-pressure pump.
In addition, the waste liquid reduction production method further comprises the following steps: and adopting a mud throwing machine to throw mud and separate the fixed waste.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic view of the configuration of a waste liquid reduction treatment apparatus in a first embodiment of the present invention.
Description of reference numerals: 1. a waste liquid tank; 2. an evaporator; 21. a heating chamber; 22. an evaporation chamber; 3. a distilled water tank; 4. a first-stage membrane high-pressure pump; 5. a primary membrane separation device; 6. a first-stage membrane water tank; 7. a pH adjusting device; 8. a second stage high pressure pump; 9. a secondary membrane separation device; 10. a lift pump; 11. a water pump; 13. a mud throwing machine; 14. a first-stage booster pump; 15. filtering by security; 16. a secondary booster pump; 17. performing precision filtration; 18. a secondary membrane water tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present invention relates to a waste liquid reduction treatment apparatus, as shown in fig. 1, including: the system comprises a waste liquid pool 1, an evaporator 2, a distillation water tank 3, a primary membrane high-pressure pump 4, a primary membrane separation device 5, a primary membrane water tank 6, a PH adjusting device 7, a secondary high-pressure pump 8 and a secondary membrane separation device 9 which are communicated in sequence; wherein the pH adjusting device 7 is used for adjusting the pH value of the waste liquid in the treatment.
As shown in fig. 1, waste liquid pond 1 mainly used stores the waste liquid and has enough to meet the need the waste liquid, sets up two level gauges in the waste liquid pond 1, sets up a level gauge in highest liquid level department, sets up a level gauge in minimum liquid level department, and two level gauges can adopt tuning fork vibrating, magnetism suspension, pressure type, ultrasonic wave, sonar wave, magnetism turns over board, radar etc..
In addition, preferably, the apparatus for reducing waste liquid may further include a lift pump 10, the lift pump 10 being used to input the waste liquid in the waste liquid tank 1 into the evaporator 2, and the apparatus for reducing waste liquid may further include: the main control system, this main control system is connected with two level gauge electricity that set up in waste liquid pond 1 respectively, and this main control system still with elevator pump 10 electric connection simultaneously, when the waste liquid in waste liquid pond 1 exceeded minimum liquid level, main control system control elevator pump 10 closed, when the waste liquid in waste liquid pond 1 exceeded highest liquid level, main control system control elevator pump 10 opened.
Further, as shown in fig. 1, the evaporator 2 includes: a heating chamber 21 and an evaporation chamber 22, wherein the lift pump 10 is communicated with the heating chamber 21, and the waste liquid is heated in the heating chamber 21, enters the evaporation chamber 22, and is cooled in the evaporation chamber 22 into distilled water. In this embodiment, the evaporator 2 is electrically heated, but in some embodiments, a gas heating lamp may be used.
The primary membrane high-pressure pump 4 is communicated with an evaporation chamber 22 of the evaporator 2, the waste liquid in treatment can be input into the primary membrane separation device 5 through the primary membrane high-pressure pump 4, the primary membrane separation device 5 is mainly used for concentrating and separating ions, bacteria and salt in the water, the waste liquid is filtered through the primary membrane separation device 5 to form primary separated water, the primary separated water flows into the primary membrane water tank 6 for storage, the secondary high-pressure pump 8 is communicated with the primary membrane water tank 6, the waste liquid in treatment can be input into the secondary membrane separation device 9 through the secondary high-pressure pump 8, the primary membrane separation device 5 of the secondary membrane separation device 9 is mainly used for concentrating and separating ions, bacteria and salt in the water, the waste liquid forms secondary separated water after being treated through the secondary membrane separation device 9, the secondary separated water flows into the secondary membrane water tank 18 for storage, the secondary membrane water tank 18 is used for storing purified water, a sterilizing device is arranged in the secondary membrane water tank 18 to ensure that bacteria in the water tank do not grow any more.
In some embodiments, the waste water reduction treatment apparatus further comprises a water pump 11 in communication with the secondary membrane water tank 18, and the water in the secondary membrane water tank 18 can be sent to the site for use or reprocessed by the water pump 11.
In addition, all install two level gauges in one-level membrane water tank 6 and the second grade membrane water tank 18 with in the waste liquid pond 1 equally, set up a level gauge in highest liquid level department, set up a level gauge in minimum liquid level department, two level gauges can adopt the tuning fork vibrating type, magnetism floats, pressure type, the ultrasonic wave, the sonar wave, magnetism turns over the board, radar etc., main control system is connected with two level gauges in one-level membrane water tank 6 and two level gauges in the second grade membrane water tank 18 electricity respectively, this main control system still with one-level booster pump 14 and 16 electric connection of second grade booster pump simultaneously, when the treatment fluid in one-level membrane water tank 6 exceeded minimum liquid level, main control system control one-level booster pump 14 closes, when the treatment fluid in one-level membrane water tank 6 exceeded the highest liquid level, main control system control one-level booster pump 14 opened. When the treatment liquid in the secondary membrane water tank 18 exceeds the lowest liquid level, the main control system controls the secondary booster pump 16 to be closed, and when the treatment liquid in the secondary membrane water tank 18 exceeds the highest liquid level, the main control system controls the secondary booster pump 16 to be opened.
The pH adjusting device 7 is used for adjusting the pH of the waste liquid during the treatment, and a small amount of sodium hydroxide is contained in the pH adjusting device 7.
In addition, as shown in fig. 1, the waste liquid reduction treatment apparatus further includes: a sludge slinger 13 connected to the evaporator 2, said sludge slinger 13 receiving the concentrated paste waste left after evaporation by said evaporator 2 and being operable to dewater the received concentrated paste waste. The waste liquid is evaporated and separated into distilled water and thick pasty waste in a heating chamber 21 of the evaporator 2, the thick pasty waste enters a mud slinger 13 from the heating chamber 21 and is dehydrated by the mud slinger 13 to form mud cakes and toxic and harmful clean water, the mud slinger 13 is communicated with the waste liquid pool 1, and the toxic and harmful clean water dehydrated by the mud slinger 13 enters the waste liquid pool 1 for processing again. The separated mud cake with high toxicity and harm can be incinerated.
In addition, a primary booster pump 14 and a security filter 15 are sequentially connected between the distilled water tank 3 and the primary high-pressure pump. The security filter 15 is a security filter 15, and has the main functions of intercepting particles and colloidal substances with the particle size of more than 5 microns in water and ensuring the safe and stable operation of the subsequent primary membrane separation device 5, and the security filter 15 is a 5U filter. The primary booster pump 14 is mainly used for supplying water and boosting pressure to the security filter 15 and also ensuring to supply water to the primary high-pressure pump; the waste liquid to be treated is filtered by the security filter 15 to form first-level filtered water.
In addition, a secondary booster pump 16 and a precise filter 17 are connected between the primary membrane water tank 6 and the secondary high-pressure pump 8. The precise filtering 17 can intercept thalli and micro substances, can replace a water tank for use, and can ensure the stability of the water inflow of the second-stage high-pressure pump 8 through the second-stage booster pump 16. The microfiltration 17 is a 1U filter.
In addition, the first-stage high-pressure pump and the second-stage high-pressure pump 8 are automatically protected against water shortage, low pressure and high pressure.
The whole system is made of a strong-corrosion anti-pollution material, and the filter element and the membrane element are anti-pollution and corrosion-resistant in type selection.
In addition, a second embodiment of the present invention further provides a waste liquid reduction treatment method, which adopts the waste liquid reduction treatment apparatus in the above embodiments, and the specific waste liquid reduction treatment method is as follows:
feeding the waste liquid into the evaporator 2, the evaporator 2 separating the waste liquid into a thick paste waste and distilled water;
distilled water flows into the distilled water tank 3;
the distilled water in the distilled water tank 3 is input into a security filter 15 by adopting a first-stage booster pump 14, the distilled water is subjected to primary filtration by adopting the security filter 15 to form primary filtered water, and the primary filtered water is subjected to COD adsorption by activated carbon.
The primary membrane separation device 5 is communicated with the security filter 15, primary separation is carried out on the liquid to be treated flowing into the primary membrane separation device 5 to form primary separated water, the conductivity of the primary separated water is within 200us/cm, and the water quality approaches to the municipal tap water quality;
the primary separated water flows into the primary membrane water tank 6;
inputting the liquid to be treated into the primary membrane separation device 5 by adopting the primary high-pressure pump;
inputting the water in the primary membrane water tank 6 into a precision filter 17 by using a secondary booster pump 16, and carrying out secondary filtration on the primary separated water by using the precision filter 17 to form secondary filtered water, wherein the secondary filtered water absorbs COD (chemical oxygen demand) by using activated carbon;
the PH adjusting device 7 is communicated with the primary filtering water device to adjust the PH value of the liquid to be treated;
the secondary membrane separation device 9 is communicated with the PH regulation device 7, secondary separation is carried out on the liquid to be treated to form secondary separated water, the conductivity of the secondary separated water is within 10us/cm, and the water quality indexes are all close to municipal tap water and do not exceed the standard;
and the liquid to be treated is input into the secondary membrane separation device 9 by adopting the secondary high-pressure pump 8.
In addition, the waste liquid reduction production method further comprises the following steps: and a mud throwing machine 13 is adopted to carry out mud throwing separation on the thick paste waste generated by the evaporator.
Since the first embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and the technical effects that can be achieved in the first embodiment can also be achieved in this embodiment, and are not described herein again in order to reduce the repetition.
Accordingly, it will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of implementations of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims (9)

1. An apparatus for reducing waste liquid, comprising: the waste liquid pool, the evaporator, the distillation water tank, the primary membrane high-pressure pump, the primary membrane separation device, the primary membrane water tank, the PH regulation device, the secondary high-pressure pump and the secondary membrane separation device are communicated in sequence;
wherein, the PH adjusting device is used for adjusting the PH value of the waste liquid in the treatment.
2. The apparatus for abatement treatment of waste liquid of claim 1, further comprising: and the mud slinger is connected with the evaporator, receives the thick paste waste left after the evaporator evaporates and is operable to dewater the received thick paste waste.
3. The apparatus of claim 2, wherein the sludge slinger is in communication with the waste reservoir.
4. The apparatus of claim 1, wherein a primary booster pump and a security filter are connected in series between the distilled water tank and the primary high-pressure pump.
5. The apparatus of claim 1, wherein a secondary booster pump and a microfiltration pump are connected between the primary membrane water tank and the secondary high-pressure pump.
6. The apparatus of claim 4, further comprising a secondary membrane tank in communication with the secondary membrane separation device.
7. The apparatus of claim 6, further comprising a sterilization device disposed within the secondary membrane tank.
8. A method for reducing waste liquid, which comprises the step of using the apparatus for reducing waste liquid according to claim 1, wherein the method for reducing waste liquid comprises:
feeding the waste liquid into the evaporator, which separates the waste liquid into a thick paste waste and distilled water;
distilled water flows into the distilled water tank;
inputting the distilled water in the distilled water tank into security filtration by adopting a first-stage booster pump, and performing primary filtration on the distilled water by adopting the security filtration to form primary filtered water;
the primary membrane separation device is communicated with the security filter, and primary separation is carried out on the liquid to be treated flowing into the primary membrane separation device to form primary separation water;
the primary separated water flows into the primary membrane water tank;
inputting the liquid to be treated into the primary membrane separation device by adopting the primary high-pressure pump;
inputting water in the primary membrane water tank into a secondary filter by adopting a secondary booster pump, and carrying out secondary filtration on the primary separated water by adopting the secondary filter to form secondary filtered water;
the PH adjusting device is communicated with the primary filtering water device to adjust the PH value of the liquid to be treated;
the secondary membrane separation device is communicated with the PH regulation device, and secondary separation is carried out on the liquid to be treated to form secondary separation water;
and inputting the liquid to be treated into the secondary membrane separation device by adopting the secondary high-pressure pump.
9. The method for waste liquid weight reduction treatment according to claim 8, wherein the method for waste liquid weight reduction production further comprises: and dehydrating the thick paste waste generated by the evaporator by using a mud throwing machine.
CN202111162256.9A 2021-09-30 2021-09-30 Waste liquid reduction treatment equipment and waste liquid reduction treatment method Pending CN113683251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111162256.9A CN113683251A (en) 2021-09-30 2021-09-30 Waste liquid reduction treatment equipment and waste liquid reduction treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111162256.9A CN113683251A (en) 2021-09-30 2021-09-30 Waste liquid reduction treatment equipment and waste liquid reduction treatment method

Publications (1)

Publication Number Publication Date
CN113683251A true CN113683251A (en) 2021-11-23

Family

ID=78587585

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111162256.9A Pending CN113683251A (en) 2021-09-30 2021-09-30 Waste liquid reduction treatment equipment and waste liquid reduction treatment method

Country Status (1)

Country Link
CN (1) CN113683251A (en)

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