CN211226806U - Zero release processing system of cosmetics waste water - Google Patents
Zero release processing system of cosmetics waste water Download PDFInfo
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- CN211226806U CN211226806U CN201921880203.9U CN201921880203U CN211226806U CN 211226806 U CN211226806 U CN 211226806U CN 201921880203 U CN201921880203 U CN 201921880203U CN 211226806 U CN211226806 U CN 211226806U
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Abstract
The utility model discloses a zero discharge treatment system for waste water in cosmetic production, which comprises a waste water inlet, an adjusting tank, an electrocoagulation-floatation tank, a pH adjusting tank, a hydrolysis-acidification tank, an anoxic tank, an aerobic tank, a membrane bioreactor, an activated carbon filter tank, a first intermediate water tank, a first-level reverse osmosis system, a second-level reverse osmosis system, a UV ultraviolet disinfection box, a second intermediate water tank, an EDI (electrodeionization) dialyzer and a reuse water tank; the novel zero discharge system for the cosmetic production wastewater adopts the electric flocculation flotation tank as pretreatment, can effectively remove LAS, reduce COD, reduce the organic load of subsequent biochemical treatment, improve the biochemical treatment efficiency, adopts two-stage reverse osmosis treatment, can effectively desalt, and can reduce membrane blockage by the treatment of the membrane bioreactor in the earlier stage; and finally, the EID treatment is adopted, the electrodialysis and the ion exchange process are combined into one, the resin regeneration is carried out through the electrodialysis, acid and alkali regeneration is not needed, the purity of effluent is very high, zero discharge of wastewater and reuse of reclaimed water can be realized, and the waste of water is reduced.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, specifically be a cosmetics waste water zero release processing system.
Background
The shortage of water resources in China, serious water pollution and the cyclic utilization of resources become the direction of industrial development in China. Aiming at the pollution mainly generated by the waste water in the aspect of cosmetic production, if the waste water is effectively treated and recycled, the pollution discharge and the resource waste can be reduced, and the sustainable development strategy of China is met. At present, most of cosmetic production wastewater is discharged after being treated, clean production, energy conservation and emission reduction are provided along with the implementation of a new environmental protection method, and the emission standard of enterprise production wastewater is more and more strict. Due to the fact that the total pollutant emission amount is controlled in all places, pollutant emission amount of enterprises is limited, and development scale of the enterprises is also limited. The effective way for controlling the pollutant discharge amount of the cosmetic enterprises is to improve the wastewater treatment efficiency and reuse the reclaimed water to achieve zero discharge.
The waste water from cosmetics production belongs to high-concentration organic waste water which is difficult to degrade, has complex components, contains a large amount of macromolecular substances such as surfactant, emulsifier, thickener and the like, has high organic matter concentration, strong foamability and uneven water quality, and increases the difficulty of waste water treatment. The traditional cosmetic production wastewater can not greatly reduce COD and LAS through the combination of coagulating sedimentation and biochemical treatment, and the effluent quality can not reach the recycling standard. The waste water zero discharge process provided at present is not suitable for cosmetic waste water treatment, has insufficient pretreatment effect and poor biodegradability, easily causes the blockage of a three-stage treatment system, and increases the operation cost. Therefore, zero-emission treatment of waste water in cosmetic production is still a difficult problem to be explored.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, a zero discharge treatment system for waste water in cosmetic production is provided.
The utility model adopts the technical scheme as follows:
a zero-discharge treatment system for wastewater generated in cosmetic production comprises a wastewater inlet, an adjusting tank, an electrocoagulation-flotation tank, a pH adjusting tank, a hydrolysis-acidification tank, an anoxic tank, an aerobic tank, a membrane bioreactor, an activated carbon filter tank, a first intermediate water tank, a first-stage reverse osmosis system, a second-stage reverse osmosis system, a UV ultraviolet disinfection tank, a second intermediate water tank, an EDI (electrolytic ionization) dialyzer and a reuse water tank, wherein the adjusting tank is arranged on one side outside the wastewater inlet, the electrocoagulation-flotation tank is connected to one side outside the adjusting tank, the pH adjusting tank is arranged on one side outside the electrocoagulation-flotation tank, the hydrolysis-acidification tank is connected to one side outside the pH adjusting tank, the anoxic tank is fixed to one side outside the hydrolysis-acidification tank, the aerobic tank is connected to one side outside the anoxic tank, the membrane bioreactor is communicated with the activated carbon filter tank, and the first intermediate water tank is arranged on one outside the activated carbon, outside one side of first middle water tank is connected with one-level reverse osmosis system, and the outside one side of one-level reverse osmosis system is connected with second grade reverse osmosis system through the one-level product water tank, and the outside one side of second grade reverse osmosis system is through the second grade product water tank install UV ultraviolet ray disinfection case, and outside one side intercommunication of UV ultraviolet ray disinfection case has the middle water tank of second, and outside one side of water tank is connected with EDI electric deionization dialyzer in the middle of the second, and outside one side of EDI electric deionization dialyzer is fixed with the retrieval and utilization water tank.
And a lifting pump is connected between the adjusting tank and the electric flocculation flotation tank and between the pH adjusting tank and the hydrolysis acidification tank, and a dosing tank is installed at the top end of the pH adjusting tank.
Wherein, the inside bottom of hydrolytic acidification pond is installed sludge blanket and clear water layer.
And return pipes are connected between the anoxic tank and the aerobic tank, between the primary reverse osmosis system and the regulating tank, and between the secondary reverse osmosis system and the membrane bioreactor.
Wherein, the inside active carbon layer that inlays of active carbon filter tank.
Wherein a booster pump is installed between the second intermediate water tank and the EDI electrodeionization dialyzer.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the utility model provides a cosmetics waste water zero discharge system to the poor, the high characteristic of LAS concentration of cosmetics waste water biodegradability, adopts the electric flocculation air supporting pond as the pretreatment, can effectively get rid of LAS, reduces COD, reduces follow-up biochemical treatment's organic load, improves biochemical treatment efficiency, adopts two-stage reverse osmosis treatment, can effectively desalt, and the disengaging process need not the heating, does not have the phase change, and the energy consumption is few, and handles through membrane bioreactor in earlier stage, can reduce the membrane jam. And finally, the treatment is carried out by EID, the electrodialysis and the ion exchange process are combined into one, the resin regeneration is carried out by the electrodialysis, acid and alkali regeneration is not needed, the purity of effluent is very high, and the effluent is directly recycled. The utility model provides a process can realize waste water zero discharge, and the reuse of reclaimed water reaches water resource circulation, reduces the water waste.
Drawings
FIG. 1 is a schematic structural view of a zero discharge treatment system for waste water from cosmetic production.
Reference numbers in the figures:
1. a wastewater inlet; 2. a regulating tank; 3. an electrocoagulation-floatation tank; 4. a pH adjusting tank; 5. a hydrolysis acidification pool; 6. an anoxic tank; 7. an aerobic tank; 8. a membrane bioreactor; 9. an activated carbon filter tank; 10. a first intermediate water tank; 11. a first-stage reverse osmosis system; 12. a secondary reverse osmosis system; 13. UV disinfection box; 14. a second intermediate water tank; 15. EDI electrodeionization dialyzer; 16. and (5) recycling the water tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1, a zero discharge treatment system for wastewater from cosmetic production comprises a wastewater inlet 1, an adjusting tank 2, an electrocoagulation-flotation tank 3, a pH adjusting tank 4, a hydrolysis-acidification tank 5, an anoxic tank 6, an aerobic tank 7, a membrane bioreactor 8, an activated carbon filter tank 9, a first intermediate water tank 10, a first-stage reverse osmosis system 11, a second-stage reverse osmosis system 12, a UV ultraviolet disinfection tank 13, a second intermediate water tank 14, an EDI electrodeionization dialyzer 15 and a recycling water tank 16, wherein the adjusting tank 2 is installed on one side of the exterior of the wastewater inlet 1, the electrocoagulation-flotation tank 3 is connected to one side of the exterior of the adjusting tank 2, the wastewater can be demulsified, suspended matters, surfactants and heavy metal ions are removed, COD is reduced, biodegradability of wastewater is improved, no medicament is added in the process, cost is reduced, the pH adjusting tank 4 is installed on one side of the exterior of the electrocoagulation tank 3, and the pH is, ensuring that the biochemical conditions of microorganisms are normal, wherein one side outside the pH adjusting tank 4 is connected with a hydrolysis acidification tank 5, one side outside the hydrolysis acidification tank 5 is fixed with an anoxic tank 6, one side outside the anoxic tank 6 is connected with an aerobic tank 7, the two tanks are in anoxic and aerobic alternate operation through mixed liquid backflow, organic matters can be degraded while nitrogen and phosphorus are removed through the microorganisms, the volume load is high, the effluent is stable, one side outside the aerobic tank 7 is communicated with a membrane bioreactor 8, one side outside the membrane bioreactor 8 is communicated with an activated carbon filter tank 9, one side outside the activated carbon filter tank 9 is provided with a first intermediate water tank 10, one side outside the first intermediate water tank 10 is connected with a first-stage reverse osmosis system 11, one side outside the first-stage reverse osmosis system 11 is connected with a second-stage reverse osmosis system 12 through a first-stage water production tank, one side outside the second-stage reverse osmosis, be convenient for disinfect to waste water, water tank 14 in the middle of the outside one side intercommunication of UV ultraviolet ray disinfect box 13 has the second, and 14 outside one side of water tank are connected with EDI electric deionization dialyzer 15 in the middle of the second, and 15 outside one sides of EDI electric deionization dialyzer are fixed with retrieval and utilization water tank 16.
Between equalizing basin 2 and the electric flocculation air supporting pond 3, all be connected with the elevator pump between pH equalizing basin 4 and the hydrolysis-acidification pool 5, the tank of adding medicine is installed on 4 tops of pH equalizing basin, is convenient for to the inside medicament that adds of pH equalizing basin 4, is convenient for add the waste water with sulphuric acid in, gets into pH equalizing basin 4 after mixing in the pipeline, the inside even stirring of mixer that sets up of pH equalizing basin 4 makes pH transfer to slightly acidic, ensures that the biochemical condition of microorganism is normal.
The inside bottom in hydrolysis-acidification pool 5 installs sludge blanket and clear water layer, and the sludge blanket contains the mud of hydrolysis acid-producing bacterium, acidizing bacteria, and under anaerobic condition, the organic matter that is detained is under the effect of a large amount of microorganisms, hydrolysises insoluble organic matter into soluble substance, turns into the micromolecule material of easy biodegradable with macromolecule, the material that is difficult to biodegradable to improve the biodegradability of waste water, do benefit to follow-up aerobic treatment.
And return pipes are connected between the anoxic tank 6 and the aerobic tank 7, between the primary reverse osmosis system 11 and the regulating tank 2 and between the secondary reverse osmosis system 12 and the membrane bioreactor 8, so that the mixed liquid in the aerobic tank 7 flows back to the anoxic tank 6, the concentrated water in the primary reverse osmosis system 11 flows back to the regulating tank 2, and the concentrated water in the secondary reverse osmosis system 12 flows back to the membrane bioreactor 8.
Activated carbon filter jar 9 is inside to be inlayed and is had the activated carbon layer, is convenient for carry out activated carbon adsorption to waste water and filters.
A booster pump is arranged between the second intermediate water tank 14 and the EDI electric deionization dialyzer 15, so that wastewater can conveniently enter the EDI electric deionization dialyzer 15, a pair of electrodes is arranged in EDI, and a plurality of groups of negative films, positive films and partition plates are alternately arranged to form a dense chamber and a dilute chamber, so that deep desalination is realized, and the purposes of desalination and purification are achieved.
The working principle is as follows:
the method comprises the following steps: cosmetic production wastewater enters the regulating reservoir 2 through the wastewater inlet 1 to be collected, and the water quality and the water quantity are regulated.
Step two: and the effluent of the adjusting tank 2 enters an electric flocculation air flotation tank 3 through a lift pump. The electrocoagulation-floatation tank 3 integrates coagulation, skimming, drainage and sludge discharge and consists of a water distribution area, an electrolysis area, an air floatation area, a sedimentation area and a water outlet area. A series of perforated water distribution pipes are uniformly distributed in the water distribution area of the electrocoagulation-flotation tank 3, and water flows upwards into the electrolysis area. The electrolysis zone is provided with a plurality of groups of polar plates which are connected in parallel, the anode is metallic iron, the cathode is a material which does not dissolve out metallic ions, and the treated water flows into gaps of the polar plates. When direct current passes through the anode, a large amount of ferrous ions are dissolved out and combined with hydroxide ions generated by water electrolysis to generate ferrous hydroxide, flocculation reaction is carried out in wastewater, and suspended particles in the wastewater and emulsified oil such as LAS and the like are coagulated into floccules. Meanwhile, the cathode generates a large amount of tiny hydrogen bubbles when passing direct current, and the diameter of the hydrogen bubbles is generally 18-90 μm and plays a role of an air floatation auxiliary agent. Suspended particles and emulsified oil in the wastewater are attached to the bubbles, and along with the bubbles, a slag layer is formed and is cleaned into a collecting tank through a slag scraper on the top of the tank, so that the water purifying effect is achieved. Oxidation reaction and reduction reaction are also generated in the electrolytic process, heavy metals in water are removed, and COD is reduced. The bottom of the electric flocculation air flotation tank 3 is provided with a mud bucket, and the mud bucket collects larger sediments and discharges the sediments through a mud pipe. The method can demulsify the wastewater, remove suspended matters, surfactants and heavy metal ions, reduce COD, improve the biodegradability of the wastewater, and reduce the cost because no medicament is added in the process.
Step three: the effluent of the electric flocculation flotation tank 3 enters a pH adjusting tank 4, sulfuric acid is added into wastewater through a dosing tank, the wastewater is mixed in a pipeline and then enters the pH adjusting tank 4, the pH adjusting tank 4 is provided with a stirrer for uniform stirring, the pH is adjusted to be slightly acidic, and the normal biochemical conditions of microorganisms are ensured.
Step four: and the effluent of the pH adjusting tank 4 enters a hydrolysis acidification tank 5 through a lift pump. The hydrolysis acidification tank 5 is divided into a sludge bed and a clear water layer, sewage enters the tank from the bottom of the reactor and is quickly and uniformly mixed with the sludge bed through a water distributor with a reflecting plate. The sludge bed is sludge containing hydrolytic acid-producing bacteria and acidifying bacteria, under the anaerobic condition, the retained organic substances hydrolyze insoluble organic substances into soluble substances under the action of a large amount of microorganisms, and macromolecular and difficultly biodegradable substances are converted into micromolecular substances easy to biodegrade, so that the biodegradability of the wastewater is improved, and the subsequent aerobic treatment is facilitated.
Step five: the effluent of the hydrolysis acidification tank 5 automatically flows into an anoxic tank 6/aerobic tank 7 and is marked as an A/O tank. The A/O pool is divided into two pools, namely an anoxic pool A section and an aerobic pool O section. The anoxic section contains denitrifying bacteria, and nitrite and nitrate are reduced into nitrogen under the anoxic condition; the aerobic section contains ammonifying bacteria, converts organic nitrogen into ammonia nitrogen, contains nitrifying bacteria and denitrifying bacteria, converts the ammonia nitrogen into nitrite and nitrate, and then converts the nitrite and nitrate into nitrogen to be removed. The aerobic section is provided with a blast aeration system to provide oxygen for the growth of microorganisms. The two tanks are in anoxic and aerobic alternate operation through mixed liquid backflow, organic matters can be degraded while nitrogen and phosphorus are removed through microorganisms, the volume load is high, and the effluent is stable.
Step six: the effluent of the A/O tank enters a membrane bioreactor 8, the membrane bioreactor 8 mainly comprises a membrane bioreactor 8 membrane component, a sludge reflux pump, a cleaning system, a sludge discharge system and the like, wastewater is filtered by a membrane to achieve the purpose of mud-water separation, sludge flows back to the A tank through the reflux pump, and residual sludge is discharged into the sludge tank. The cleaning system comprises a backwashing pump and a medicine washing tank, clear water in the water generating tank of the membrane bioreactor 8 enters the membrane bioreactor 8 through the backwashing pump, and meanwhile, a reagent is added into the pipeline to carry out back washing on the biological membrane. The technology has the advantages of good effluent quality, low sludge load, sludge reduction, compact equipment and small occupied area.
Step seven: the play water of membrane bioreactor 8 gets into through the delivery pump and produces the pond, it crosses lift pump three to go into active carbon filtration jar 9 to produce pond play water, active carbon filtration jar 9 sets up the active carbon filler, and as deodorization, decoloration, organic matter removal, filtrating satisfies reverse osmosis system's the requirement of intaking, produces water and gets into first middle water tank 10.
Step eight: the water in the first intermediate water tank 10 enters a first-stage reverse osmosis system 11 through a lift pump, the first-stage reverse osmosis system 11 mainly comprises a reverse osmosis membrane group, a cleaning system, a high-pressure pump, a circulating pump, a cartridge filter and the like, and in order to prevent suspended particles which are not completely removed or newly generated in pretreatment from entering the reverse osmosis system, the high-pressure pump and the reverse osmosis membrane are protected, and a filter element type cartridge filter is usually arranged before reverse osmosis water enters. The water flow enters a first-stage reverse osmosis system 11 after passing through a cartridge filter, the reverse osmosis membrane is made of organic synthetic materials, the pore size is small enough, Na +, Cl-, Ca2+ and Mg2+ cannot pass through, only H2O molecules can pass through, and the salinity of the concentrated wastewater achieves the aim of desalting. The produced water enters a first-stage reverse osmosis water production tank, and concentrated water flows back to the regulating tank 2.
Step nine: the water in the first-stage reverse osmosis water production tank enters a second-stage reverse osmosis system 12 through a reverse osmosis intermediate lift pump, the salt is further concentrated and separated, the produced water enters a second-stage reverse osmosis water production tank, and the concentrated water flows back to the membrane bioreactor 8 water production tank.
Step ten: the produced water of the second-stage reverse osmosis water production tank enters the UV disinfection tank 13 through the fourth lifting pump for sterilization and disinfection, and the outlet water enters the second middle water tank 14.
Step eleven: the water of the second intermediate water tank 14 is introduced into the EDI electrodeionization dialyzer 15 through a booster pump. The EDI is provided with a pair of electrodes, and a plurality of groups of negative films, positive films and clapboards are alternately arranged to divide the EDI into a dense chamber and a dilute chamber. The middle is ion exchange resin which is a light chamber; the two sides are separated by anion and cation exchange membranes, which are dense chambers and selectively permeate anions and cations. Under the action of the direct current electric field, anions and cations respectively penetrate through the ion exchange membrane to enter the concentration chamber, ions of water in the fresh chamber are gradually reduced, deep desalination is performed, the purposes of desalination and purification are achieved, water can be continuously discharged, acid-base regeneration is not needed, the quality of the discharged water reaches the recycling standard, and the discharged water enters the recycling water tank 16.
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 (6)
1. A zero-discharge treatment system for wastewater generated in cosmetic production comprises a wastewater inlet (1), an adjusting tank (2), an electrocoagulation-flotation tank (3), a pH adjusting tank (4), a hydrolysis-acidification tank (5), an anoxic tank (6), an aerobic tank (7), a membrane bioreactor (8), an activated carbon filter tank (9), a first intermediate water tank (10), a first-stage reverse osmosis system (11), a second-stage reverse osmosis system (12), a UV ultraviolet disinfection box (13), a second intermediate water tank (14), an EDI (electrodeionization) dialyzer (15) and a recycling water tank (16), wherein the adjusting tank (2) is installed on one side of the outside of the wastewater inlet (1), the electrocoagulation-flotation tank (3) is connected on one side of the outside of the adjusting tank (2), the pH adjusting tank (4) is installed on one side of the outside of the electrocoagulation tank (3), and the hydrolysis-acidification tank (5) is connected on one side of the, an anoxic tank (6) is fixed on one side of the outside of the hydrolysis acidification tank (5), one side of the outside of the anoxic tank (6) is connected with an aerobic tank (7), one side of the outside of the aerobic tank (7) is communicated with a membrane bioreactor (8), one side of the outside of the membrane bioreactor (8) is communicated with an activated carbon filtration tank (9), one side of the outside of the activated carbon filtration tank (9) is provided with a first intermediate water tank (10), one side of the outside of the first intermediate water tank (10) is connected with a first-stage reverse osmosis system (11), one side of the outside of the first-stage reverse osmosis system (11) is connected with a second-stage reverse osmosis system (12) through a first-stage product water tank, one side of the outside of the second-stage reverse osmosis system (12) is provided with a UV ultraviolet disinfection tank (13) through a second-stage product water tank, one side of the outside of the UV ultraviolet, a recycling water tank (16) is fixed on one side of the exterior of the EDI electric deionization dialyzer (15).
2. The zero-discharge treatment system for waste water of cosmetic production according to claim 1, characterized in that: and a lifting pump is connected between the adjusting tank (2) and the electric flocculation air flotation tank (3) and between the pH adjusting tank (4) and the hydrolysis acidification tank (5), and a medicine adding tank is installed at the top end of the pH adjusting tank (4).
3. The zero-discharge treatment system for waste water of cosmetic production according to claim 1, characterized in that: and a sludge layer and a clear water layer are arranged at the bottom end inside the hydrolysis acidification tank (5).
4. The zero-discharge treatment system for waste water of cosmetic production according to claim 1, characterized in that: and return pipes are connected between the anoxic tank (6) and the aerobic tank (7), between the primary reverse osmosis system (11) and the regulating tank (2), and between the secondary reverse osmosis system (12) and the membrane bioreactor (8).
5. The zero-discharge treatment system for waste water of cosmetic production according to claim 1, characterized in that: an active carbon layer is embedded in the active carbon filtering tank (9).
6. The zero-discharge treatment system for waste water of cosmetic production according to claim 1, characterized in that: a booster pump is arranged between the second intermediate water tank (14) and the EDI electric deionization dialyzer (15).
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| CN201921880203.9U CN211226806U (en) | 2019-11-04 | 2019-11-04 | Zero release processing system of cosmetics waste water |
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| CN201921880203.9U CN211226806U (en) | 2019-11-04 | 2019-11-04 | Zero release processing system of cosmetics waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520913A (en) * | 2020-11-09 | 2021-03-19 | 产学研(广州)环境服务有限公司 | Pretreatment process for treating refractory organic wastewater by electric flocculation |
| CN113233701A (en) * | 2021-05-12 | 2021-08-10 | 东珠生态环保股份有限公司 | Reclaimed water purification treatment method for reusing in landscape water body |
| CN113816511A (en) * | 2021-09-30 | 2021-12-21 | 优利德(江苏)化工有限公司 | Water purification device for chemical plant |
-
2019
- 2019-11-04 CN CN201921880203.9U patent/CN211226806U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520913A (en) * | 2020-11-09 | 2021-03-19 | 产学研(广州)环境服务有限公司 | Pretreatment process for treating refractory organic wastewater by electric flocculation |
| CN113233701A (en) * | 2021-05-12 | 2021-08-10 | 东珠生态环保股份有限公司 | Reclaimed water purification treatment method for reusing in landscape water body |
| CN113816511A (en) * | 2021-09-30 | 2021-12-21 | 优利德(江苏)化工有限公司 | Water purification device for chemical plant |
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