CN210140521U - Printing industry effluent disposal system - Google Patents
Printing industry effluent disposal system Download PDFInfo
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- CN210140521U CN210140521U CN201920525133.9U CN201920525133U CN210140521U CN 210140521 U CN210140521 U CN 210140521U CN 201920525133 U CN201920525133 U CN 201920525133U CN 210140521 U CN210140521 U CN 210140521U
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Abstract
The utility model discloses a printing industrial wastewater treatment system, which comprises an acid precipitation reaction system, an intermediate water tank, an advanced oxidation reaction system, a micro-electrolysis system, a PH regulation system, an ammonia nitrogen reaction system, a first transition tank, a flocculation system, a second transition tank, a vertical flow sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR (membrane bioreactor), an MBR water tank and a reverse osmosis system; all the systems are connected through pipelines; the system also comprises a main control unit, wherein the main control unit is electrically connected with the electric parts in the acid precipitation reaction system, the advanced oxidation reaction system, the micro-electrolysis system, the pH regulation system, the ammonia nitrogen reaction system, the flocculation system and the reverse osmosis system.
Description
Technical Field
The utility model relates to a waste water treatment field especially relates to a printing industry effluent disposal system.
Background
In the existing color printing industry, the pigment used by the ink generally has light resistance, heat resistance stability, acid resistance, alkali resistance, common oxidant resistance and good tinting strength; the composition is complex, the chroma is large, the organic matter content is high, and the biodegradability is low.
Under the prior art, most of the treatment is single or simple physical and chemical treatment and biochemical treatment and MBR (membrane bioreactor) biofilm treatment, and the discharge standard of IV in Table 1 of surface water environmental quality standard (GB3838-2002) is difficult to achieve. In addition, the biodegradability is very low, and the influence of seasonal change on microorganisms is large, the treatment method of the ink wastewater mainly comprises physical, chemical and biological treatment or the combination of several treatment technologies to strengthen the treatment effect, along with the improvement of the sewage discharge standard, the conventional water treatment method cannot meet the treatment requirement, and the efficient novel ink wastewater treatment method and technology are one of the difficulties in the wastewater treatment, and along with the improvement of the discharge indexes of ammonia nitrogen, total phosphorus and total nitrogen, the prior art cannot meet the existing discharge standard.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a waste water treatment system, in particular to a printing industry waste water treatment system.
The technical scheme of the utility model as follows:
a printing industrial wastewater treatment system comprises an acid precipitation reaction system, an intermediate water tank, an advanced oxidation reaction system, a micro-electrolysis system, a PH regulation system, an ammonia nitrogen reaction system, a first transition tank, a flocculation system, a second transition tank, a vertical flow sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR membrane bioreactor, an MBR water tank and a reverse osmosis system; the acidification reaction system, the middle water tank, the advanced oxidation reaction system, the micro-electrolysis system, the pH regulation system, the ammonia nitrogen reaction system, the first transition tank, the flocculation system, the second transition tank, the vertical flow sedimentation tank, the hydrolysis acidification tank, the contact oxidation tank, the MBR membrane bioreactor, the MBR water tank and the reverse osmosis system are sequentially communicated through pipelines.
The system also comprises a main control unit; the main control unit is electrically connected with the electric parts in the acid precipitation reaction system, the advanced oxidation reaction system, the micro-electrolysis system, the PH regulation system, the ammonia nitrogen reaction system, the flocculation system and the reverse osmosis system.
Preferably, the acid separation reaction system comprises a lift pump, an acid separation reaction tank and a first metering pump; the lift pump is arranged at the water inlet of the acid separation reaction tank, and the water inlet of the acid separation reaction tank is connected with the water outlet of an external wastewater tank through a pipeline; the water outlet of the acid separation reaction tank is connected with the water inlet pipeline of the intermediate water tank; the first metering pump is arranged beside the acidification reaction tank.
Preferably, the advanced oxidation reaction system comprises a Fenton reaction tank, a blower, an ORP instrument and a second metering pump; the bottom of the Fenton reaction tank is provided with a through hole, and the blower is communicated with the through hole through a corresponding pipeline; the water inlet of the Fenton reaction tank is connected with the water outlet pipeline of the middle water tank, and the water outlet of the Fenton reaction tank is connected with the micro-electrolysis system; and the ORP meter and the second metering pump are arranged beside the Fenton reaction tank.
Preferably, the micro-electrolysis system comprises a micro-electrolysis cell and an iron-carbon feeding device; the water inlet of the micro-electrolysis cell is connected with the water outlet pipeline of the Fenton reaction cell; the water outlet of the micro-electrolysis cell is connected with the PH adjusting system; the iron-carbon feeding device is arranged beside the micro-electrolysis cell.
Preferably, the pH adjusting system comprises a pH adjusting tank and a pH automatic control system; the water inlet of the PH adjusting tank is connected with the water outlet pipeline of the micro-electrolysis tank, and the water outlet of the PH adjusting tank is connected with the ammonia nitrogen reaction system; the PH automatic control is arranged corresponding to the PH adjusting tank.
Preferably, the ammonia nitrogen reaction system comprises an ammonia nitrogen reaction tank and a third metering pump; the water inlet of the ammonia nitrogen reaction tank is connected with the water outlet pipeline of the PH adjusting tank; the water outlet of the ammonia nitrogen reaction tank is connected with the water inlet pipeline of the first transition tank; and the third metering pump is arranged beside the ammonia nitrogen reaction tank.
Preferably, the flocculation system comprises a flocculation reaction tank and a fourth metering pump; the water inlet of the flocculation reaction tank is connected with the water outlet pipeline of the first transition tank, and the water outlet of the flocculation reaction tank is connected with the water inlet pipeline of the second transition tank; the fourth metering pump is arranged beside the flocculation reaction tank.
Preferably, the main control unit is a PLC control unit or a single chip microcomputer control unit, preferably a PLC control unit.
Preferably, the lift pump, the first metering pump, the air blower, the ORP meter, the second metering pump, the iron carbon feeding device, the PH automatic control system, the third metering pump, the fourth metering pump, the MBR membrane bioreactor and the reverse osmosis system are electrically connected with the main control unit.
Adopt above-mentioned scheme, the utility model discloses beneficial effect is:
the utility model realizes the advantages of simple, stable and high-efficiency equipment and the like through a pretreatment system, a biochemical and MBR biological membrane system and a reverse osmosis treatment system, and has better application prospect in the treatment of printing ink wastewater in the color printing industry; the water treated by the ink wastewater treatment equipment is low in cost, does not produce secondary pollution and is low in sludge amount, and the treated water can be reused as industrial water, so that the utilization rate of water resources is improved; the waste water treatment equipment has small occupied area and high automatic control.
Drawings
Fig. 1 is a block diagram of the overall structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
as shown in fig. 1: the embodiment provides a printing industrial wastewater treatment system, which comprises an acidification reaction system 10, an intermediate water tank 20, an advanced oxidation reaction system 30, a micro-electrolysis system 40, a pH regulation system 50, an ammonia nitrogen reaction system 60, a first transition tank 70, a flocculation system 80, a second transition tank 90, a vertical flow sedimentation tank 100, a hydrolysis acidification tank 110, a contact oxidation tank 120, an MBR (membrane bioreactor) 130, an MBR water tank 140 and a reverse osmosis system 150; the acidification reaction system 10, the intermediate water tank 20, the advanced oxidation reaction system 30, the micro-electrolysis system 40, the pH regulation system 50, the ammonia nitrogen reaction system 60, the first transition tank 70, the flocculation system 80, the second transition tank 90, the vertical flow sedimentation tank 100, the hydrolysis acidification tank 110, the contact oxidation tank 120, the MBR membrane bioreactor 130, the MBR water tank 140 and the reverse osmosis system 150 are sequentially communicated through pipelines;
also included is a main control unit 160; the main control unit 160 is electrically connected with the electric parts of the acidification reaction system 10, the advanced oxidation reaction system 30, the micro-electrolysis system 40, the pH regulation system 50, the ammonia nitrogen reaction system 60, the flocculation system 80, the MBR membrane bioreactor 130 and the reverse osmosis system 150.
The acid separation reaction system 10 includes: a lift pump 11, an acid precipitation reaction tank 12 and a first metering pump 13; the lift pump 11 is arranged at the water inlet of the acid separation reaction tank 12, and the water inlet of the acid separation reaction tank 12 is connected with the water outlet of an external wastewater tank through a pipeline; the water outlet of the acid precipitation reaction tank 12 is connected with the water inlet pipeline of the intermediate water tank 20; the first metering pump 13 is arranged beside the acid precipitation reaction tank 12 and is used for adding sulfuric acid into the tank to generate acid precipitation reaction.
The advanced oxidation reaction system 30 includes: a Fenton reaction tank 31, an air blower 32, an ORP meter 33, and a second metering pump 34; the bottom of the Fenton reaction tank 31 is provided with a through hole, and the blower 32 is communicated with the through hole through a corresponding pipeline; the water inlet of the Fenton reaction tank 31 is connected with the water outlet pipeline of the intermediate water tank 20, and the water outlet of the Fenton reaction tank 31 is connected with the micro-electrolysis system 40; the ORP meter 33 and the second metering pump 34 are disposed beside the fenton reaction tank 31, and are respectively used for adding hydrogen peroxide and ferrous sulfate into the tank.
The micro-electrolysis system 40 includes: a micro-electrolytic cell 41, an iron-carbon feeding device 42; the water inlet of the micro-electrolysis cell 41 is connected with the water outlet pipeline of the Fenton reaction cell 31; the water outlet of the micro-electrolysis cell 41 is connected with the PH adjusting system 50; the iron carbon feeding device 42 is arranged beside the micro-electrolysis cell 41 and is used for adding iron carbon into the cell to generate micro-electrolysis reaction.
The PH adjusting system 50 comprises a PH adjusting tank 51 and a PH automatic control system 52; the water inlet of the PH adjusting tank 51 is connected with the water outlet pipeline of the micro-electrolysis tank 41, and the water outlet of the PH adjusting tank 51 is connected with the ammonia nitrogen reaction system 60; the PH automatic control system 52 is arranged corresponding to the PH adjusting tank 51 and is used for controlling the PH value of the wastewater in the PH adjusting tank.
The ammonia nitrogen reaction system 60 comprises: an ammonia nitrogen reaction tank 61 and a third metering pump 62; the water inlet of the ammonia nitrogen reaction tank 61 is connected with the water outlet pipeline of the PH adjusting tank 51; the water outlet of the ammonia nitrogen reaction tank 61 is connected with the water inlet pipeline of the first transition tank 70; and the third metering pump 62 is arranged beside the ammonia nitrogen reaction tank 61 and is used for adding magnesium oxide and phosphoric acid into the tank to chemically remove ammonia nitrogen.
The flocculation system 80 comprises: a flocculation reaction tank 81 and a fourth metering pump 82; the water inlet of the flocculation reaction tank 81 is connected with the water outlet pipeline of the first transition tank 70, and the water outlet of the flocculation reaction tank 81 is connected with the water inlet pipeline of the second transition tank 90; the fourth metering pump 82 is arranged beside the flocculation reaction tank 81 and is used for adding a PAM coagulant aid to the tank for coagulation.
The main control unit 160 is a PLC control unit or a single chip microcomputer control unit, and preferably, a PLC control unit.
The lift pump 11, the first metering pump 13, the blower 32, the ORP meter 33, the second metering pump 34, the iron carbon feeding device 42, the PH automatic control system 52, the third metering pump 62, the fourth metering pump 82, the MBR membrane bioreactor 130, and the reverse osmosis system 150 are electrically connected with the main control unit 160.
The working principle of the utility model is as follows:
the lift pump 11 is controlled by the main control unit 160 to start working, the printing industrial wastewater is pumped into the acid precipitation reaction tank 12 from an external wastewater tank uniformly, the main control unit 160 controls the first metering pump 13 to add sulfuric acid into the tank to perform acid precipitation reaction, and effluent after acid precipitation automatically flows into the intermediate water tank 20 and then automatically flows into the Fenton reaction tank 31;
the main control unit 160 controls the blower 32 at the bottom of the tank to work, supplies air and stir in the Fenton reaction tank 31, adds ferrous sulfate into the tank through the second metering pump 34, and adds hydrogen peroxide into the tank through the ORP instrument 33 after full reaction, wherein the hydrogen peroxide and ferrous ions generate extremely strong oxidizing hydroxyl radicals under an acidic condition, so that COD (chemical oxygen demand) of wastewater can be effectively removed, a plurality of organic matters which are stable in structure and very difficult to be biodegraded are converted into non-toxic harmless biodegradable low molecular substances, and the biological treatment effectiveness is improved;
then the effluent from the Fenton reaction tank 31 flows into a micro-electrolytic tank 41, iron-carbon filler is added into the tank through an iron-carbon adding device 42, a plurality of micro primary cells are formed by utilizing the potential difference between iron-carbon particles, the micro cells use iron with low potential as a cathode and carbon with high potential as an anode, electrochemical reaction is carried out in aqueous solution containing acidic electrolyte, after micro-electrolysis, the BOD/COD ratio is increased, some difficultly-degradable macromolecules are adsorbed by carbon particles or reduced by flocculation of iron ions, calcium and magnesium ions in water are effectively removed, so that the hardness of the water is reduced, meanwhile, active hydroxyl radicals and active chlorine which can be sterilized are generated by electrolysis, and the adsorption effect on the surface of the electrode can also kill bacteria; then the effluent automatically flows into a PH regulating tank 51;
the main control unit 160 controls the pH automatic control system 52 to detect and add sodium hydroxide into the pool, the pH is controlled to be about 9, ferrous hydroxide with coagulation effect is formed due to the action of iron ions and hydroxyl, the ferrous hydroxide is attracted with particles with weak negative charges in pollutants in an opposite way, and stable flocculate (also called iron mud) is formed and removed;
then the effluent of the PH regulating tank 51 automatically flows into an ammonia nitrogen reaction tank 61, the third metering pump 62 is controlled by the main control unit 160 to add magnesium oxide and phosphoric acid into the tank, the effluent automatically flows into the first transition tank 70 after ammonia nitrogen is removed by chemical reaction, the effluent automatically flows into the flocculation reaction tank 81 after the full reaction of the first transition tank 70, the fourth metering pump 82 is controlled by the main control unit 160 to add PAM coagulant aid into the flocculation reaction tank 81, the effluent automatically flows into the second transition tank 90 for full reaction and then flows into the vertical sedimentation tank 100, sludge-water separation is realized through the action of gravity, and the supernatant automatically flows into the hydrolysis acidification tank 110;
after the hydrolytic acidification reaction is carried out in the hydrolytic acidification tank 110, the wastewater automatically flows into the contact oxidation tank 120, and organic matters are decomposed by facultative microorganisms and aerobic microorganisms, so that COD, BOD, ammonia nitrogen and chromaticity are degraded, and dephosphorization and denitrification are carried out;
then the effluent flows into an MBR (membrane bioreactor) 130, the master control unit 160 starts the MBR 130 to efficiently perform solid-liquid separation, the separation effect is far better than that of the traditional sedimentation tank, the effluent quality is good, the effluent suspended matters and turbidity are close to zero, and the high-efficiency interception effect is realized, so that the microorganisms are completely intercepted in the MBR 130, the complete separation of the hydraulic retention time and the sludge age of the reactor is realized, the operation control is flexible and stable, the deamination and dephosphorization functions can be realized through the change of the operation mode, the sludge age can be very long, the degradation efficiency of the refractory organics is greatly improved, the MBR produced water enters an MBR water tank and then flows into a reverse osmosis system;
meanwhile, the main control unit 160 controls the reverse osmosis system 150 to start working, more than 90% of soluble salts, more than 99% of colloidal microorganisms, organic matters and the like in water are effectively removed, and the produced water has the advantages of good water quality, stable water quality, low energy consumption, no pollution, simplicity and convenience in operation and the like through online long-time monitoring, so that the produced water is discharged up to the standard.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A printing industry effluent disposal system which characterized in that: the system comprises an acidification reaction system, a middle water tank, an advanced oxidation reaction system, a micro-electrolysis system, a pH regulation system, an ammonia nitrogen reaction system, a first transition tank, a flocculation system, a second transition tank, a vertical flow sedimentation tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR (membrane bioreactor), an MBR water tank and a reverse osmosis system; the acidification reaction system, the intermediate water tank, the advanced oxidation reaction system, the micro-electrolysis system, the pH regulation system, the ammonia nitrogen reaction system, the first transition tank, the flocculation system, the second transition tank, the vertical flow sedimentation tank, the hydrolysis acidification tank, the contact oxidation tank, the MBR membrane bioreactor, the MBR water tank and the reverse osmosis system are sequentially communicated through pipelines;
the system also comprises a main control unit; the main control unit is electrically connected with the electric parts in the acid precipitation reaction system, the advanced oxidation reaction system, the micro-electrolysis system, the PH regulation system, the ammonia nitrogen reaction system, the flocculation system and the reverse osmosis system.
2. The printing industry wastewater treatment system of claim 1, wherein: the acid separation reaction system comprises a lift pump, an acid separation reaction tank and a first metering pump; the lift pump is arranged at the water inlet of the acid separation reaction tank, and the water inlet of the acid separation reaction tank is connected with the water outlet of an external wastewater tank through a pipeline; the water outlet of the acid separation reaction tank is connected with the water inlet pipeline of the intermediate water tank; the first metering pump is arranged beside the acidification reaction tank.
3. The printing industry wastewater treatment system of claim 2, wherein: the advanced oxidation reaction system comprises a Fenton reaction tank, a blower, an ORP (oxidation-reduction potential) meter and a second metering pump; the bottom of the Fenton reaction tank is provided with a through hole, and the blower is communicated with the through hole through a corresponding pipeline; the water inlet of the Fenton reaction tank is connected with the water outlet pipeline of the middle water tank, and the water outlet of the Fenton reaction tank is connected with the micro-electrolysis system; and the ORP meter and the second metering pump are arranged beside the Fenton reaction tank.
4. The printing industry wastewater treatment system of claim 3, wherein: the micro-electrolysis system comprises a micro-electrolysis cell and an iron-carbon putting device; the water inlet of the micro-electrolysis cell is connected with the water outlet pipeline of the Fenton reaction cell; the water outlet of the micro-electrolysis cell is connected with the PH adjusting system; the iron-carbon feeding device is arranged beside the micro-electrolysis cell.
5. The printing industry wastewater treatment system of claim 4, wherein: the PH adjusting system comprises a PH adjusting tank and a PH automatic control system; the water inlet of the PH adjusting tank is connected with the water outlet pipeline of the micro-electrolysis tank, and the water outlet of the PH adjusting tank is connected with the ammonia nitrogen reaction system; the PH automatic control system is arranged corresponding to the PH adjusting tank.
6. The printing industry wastewater treatment system of claim 5, wherein: the ammonia nitrogen reaction system comprises an ammonia nitrogen reaction tank and a third metering pump; the water inlet of the ammonia nitrogen reaction tank is connected with the water outlet pipeline of the PH adjusting tank; the water outlet of the ammonia nitrogen reaction tank is connected with the water inlet pipeline of the first transition tank; and the third metering pump is arranged beside the ammonia nitrogen reaction tank.
7. The printing industry wastewater treatment system of claim 6, wherein: the flocculation system comprises a flocculation reaction tank and a fourth metering pump; the water inlet of the flocculation reaction tank is connected with the water outlet pipeline of the first transition tank, and the water outlet of the flocculation reaction tank is connected with the water inlet pipeline of the second transition tank; the fourth metering pump is arranged beside the flocculation reaction tank.
8. The printing industry wastewater treatment system of claim 7, wherein: the main control unit is a PLC control unit or a single chip microcomputer control unit.
9. The printing industry wastewater treatment system of claim 8, wherein: the lift pump, the first metering pump, the air blower, the ORP meter, the second metering pump, the iron-carbon feeding device, the PH automatic control system, the third metering pump, the fourth metering pump, the MBR membrane bioreactor and the reverse osmosis system are electrically connected with the main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525133.9U CN210140521U (en) | 2019-04-17 | 2019-04-17 | Printing industry effluent disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525133.9U CN210140521U (en) | 2019-04-17 | 2019-04-17 | Printing industry effluent disposal system |
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| Publication Number | Publication Date |
|---|---|
| CN210140521U true CN210140521U (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920525133.9U Expired - Fee Related CN210140521U (en) | 2019-04-17 | 2019-04-17 | Printing industry effluent disposal system |
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| Country | Link |
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| CN (1) | CN210140521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116177824A (en) * | 2023-04-27 | 2023-05-30 | 山东凤鸣桓宇环保有限公司 | High-concentration organic industrial wastewater treatment process |
-
2019
- 2019-04-17 CN CN201920525133.9U patent/CN210140521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116177824A (en) * | 2023-04-27 | 2023-05-30 | 山东凤鸣桓宇环保有限公司 | High-concentration organic industrial wastewater treatment process |
| CN116177824B (en) * | 2023-04-27 | 2023-09-22 | 山东凤鸣桓宇环保有限公司 | High-concentration organic industrial wastewater treatment process |
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