CN109111034A - Electroplating waste water high-efficiency processing system and its processing method - Google Patents
Electroplating waste water high-efficiency processing system and its processing method Download PDFInfo
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- CN109111034A CN109111034A CN201811013319.2A CN201811013319A CN109111034A CN 109111034 A CN109111034 A CN 109111034A CN 201811013319 A CN201811013319 A CN 201811013319A CN 109111034 A CN109111034 A CN 109111034A
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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
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- Hydrology & Water Resources (AREA)
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Abstract
Present invention discloses electroplating waste water high-efficiency processing system and its processing method, processing system includes at least one degradation sedimentation basin, is handled by Fenton's reaction and coagulating sedimentation the waste water in it；Ion exchange pond connect with degradation sedimentation basin, for by the ion exchange resin in it, to degradation sedimentation basin, treated is discharged and handles；Biological treatment tank is connect with ion exchange pond, for by the aerobic sludge in it, to treated in ion exchange pond, water outlet to be handled；Sedimentation basin is connect with the biological treatment tank；Primary activity carbon filter, connect with sedimentation basin.This programme, which carries out Fenton processing by degradation sedimentation basin, improves the biodegradability of electroplating sewerage, so as to remove the organic matter in sewage by biologic treating technique, so that COD, total phosphorus, ammonia nitrogen and total nitrogen etc. reach discharge index, the metal ion in sewage is effectively removed in combination with ion-exchange, especially heavy metal ion, so that content of beary metal reaches discharge index.
Description
Technical field
The present invention relates to sewage treatment fields, especially electroplating waste water high-efficiency processing system and its processing method.
Background technique
Plating plates one layer of other metal or alloy in certain metal surfaces using electrolysis principle, to prevent metal oxygen
With improve wearability etc., electroplating wastewater is that the water quality that generates in electroplate technology is complicated, the uppity sewage of ingredient, waste water
In containing cyanogen, containing acid, containing alkali and containing a large amount of metal ions such as: the existence form of chromium, pick, nickel, copper, also, metal ion is more
Sample, with the presence of with simple cationic form, with the presence of then by acid group yin from the form of, some is with complicated complex ion
In the presence of；All contain organic additive substantially in waste water simultaneously, if harmfulness of the electroplating wastewater direct emission to environment is very big,
Therefore handle it is up to standard after can discharge.
Common electroplating effluent treatment method includes neutralization precipitation method, neutralizes coagulant sedimentation, oxidizing process, reduction method, barium
The chemical methodes such as salt method, ferrite process.Often heavy metal is qualified after these methods are processed, but COD COD, ammonia
The organic matters such as nitrogen, total nitrogen and total phosphorus but can be exceeded, is further processed even if increasing bioanalysis below, but conventional bioanalysis is still
Ideal effect is not achieved, so that it is unqualified to eventually lead to discharge.
Summary of the invention
The object of the invention is in order to solve the above-mentioned problems in the prior art, provide it is a kind of by Fenton process, from
The electroplating waste water high-efficiency processing system and its processing method that sub- exchange process and biological treatment organically combine.
The purpose of the present invention is achieved through the following technical solutions:
Electroplating waste water high-efficiency processing system, including
At least one degradation sedimentation basin, is handled the waste water in it by Fenton's reaction and coagulating sedimentation；
Ion exchange pond is connect with the degradation sedimentation basin, for by the ion exchange resin in it to degradation sedimentation basin at
Water outlet after reason is handled；
Biological treatment tank is connect with the ion exchange pond, after being handled by the aerobic sludge in it ion exchange pond
Water outlet handled；
Sedimentation basin is connect with the biological treatment tank；
Primary activity carbon filter is connect with the sedimentation basin.
Preferably, in the electroplating waste water high-efficiency processing system, the degradation sedimentation basin is at least two, each degradation
Sedimentation basin pre-processes for different types of electroplating wastewater and connects independent ion exchange pond.
Preferably, in the electroplating waste water high-efficiency processing system, between the degradation sedimentation basin and ion exchange pond also
It is provided with sandfiltration pot.
Preferably, in the electroplating waste water high-efficiency processing system, between the degradation sedimentation basin and ion exchange pond also
It is provided with active carbon filter.
Preferably, in the electroplating waste water high-efficiency processing system, it is living that the primary activity carbon filter is also connected with second level
Property carbon filter.
Preferably, in the electroplating waste water high-efficiency processing system, the active carbon filter, primary activity carbon filter
It include tank body with two-stage activated carbon filter, the intracavity bottom of the tank body is filled with quartz sand layer, on the quartz sand layer
It is covered with carbon leaching material, and is provided with mesh aperture between them less than quartz sand particle size and carbon leaching material particle ruler
Very little anti-mixed grid, the carbon leaching material are located between anti-mixed grid and anti-race material strainer, the anti-aperture for running material strainer
Less than the particle size of the carbon leaching material；
Electroplating waste water high-efficiency processing method, includes the following steps:
Nickeliferous or cupric or electroplating wastewater of chromium are introduced degradation sedimentation basin and are located in advance by Fenton's reaction and coagulating sedimentation by S1
Reason；
S3 will remove heavy metal ion therein by ion-exchange treatment by pretreated waste water；
Waste water Jing Guo ion-exchange treatment is carried out biological treatment by aerobic sludge by S4；
Waste water Jing Guo biological treatment is introduced the filtering of primary activity carbon filter, Chinese effluent by S5.
Preferably, in the electroplating waste water high-efficiency processing method, the S1 is comprised the following processes: it is heavy that waste water introduces degradation
Behind the pond of shallow lake, pH value is adjusted to 3-4, Fenton medicament is added and reacts 1-2 hours；Then pH value is adjusted to 9-11, carries out coagulating sedimentation.
Preferably, in the electroplating waste water high-efficiency processing method, during S1-S4, by nickeliferous, cupric, containing chromium electricity
Waste electroplating is introduced into respectively in a degradation sedimentation basin, it is each degradation sedimentation basin water outlet be introduced into an ion exchange pond respectively, respectively from
The water outlet in son exchange pond is introduced into same biological treatment tank.
It preferably, further include S2 in the electroplating waste water high-efficiency processing method, it, will be by pretreatment before S3 step
Waste water successively introduce sandfiltration pot and active carbon filter is filtered；It, will be by the useless of primary activity carbon filter in S5
Water discharges after introducing two-stage activated carbon filter filtering.
The advantages of technical solution of the present invention, is mainly reflected in:
This programme deft design, structure is simple, and carrying out Fenton processing by degradation sedimentation basin will be difficult to degrade in electroplating wastewater
Oxidation of organic compounds degradation, improves the biodegradability of sewage, so as to combine its in biologic treating technique removal sewage
He effectively goes to decontaminate organic matter so that COD, total phosphorus, ammonia nitrogen and total nitrogen etc. reach discharge index in combination with ion-exchange
Metal ion in water, especially heavy metal ion, so that content of beary metal reaches discharge index.
This system and method, which classify different types of electroplating wastewater, administers, can be according to the pollutant in different waste water
Characteristic carries out the adjustment of relevant parameter, and specific aim is stronger, and more preferably, the integrated level of equipment is higher, and avoids for the flexibility of operation
Different types of waste water handles in same degradation sedimentation basin, ion exchange pond issuable interference problem, while advantageous
In the efficiency for improving sewage treatment；Further, degradation treatment is carried out due to first classifying, removes and is largely polluted in each middle sewage
Object, therefore the amount of pollutant of subsequent biological treatment greatly reduces, so as to which the sewage of multiple types is introduced at a biology
Reason pond is handled, to simplify structure.
After the pre-treatment by double-filtration, can sufficiently remove suspended matter in pretreating sewage, larger molecular organics,
The substances such as chlorine, the treatment effeciency for avoiding them that Pollution of Ion Exchange Resin is made to influence it to heavy metal, while ion can be reduced
The pollutant process amount of exchanger resin and aerobic sludge reduces the consumption of resin and sludge.
Multistage filtering is used after biological treatment, effluent quality is effectively guaranteed, and special active carbon is combined to filter
Device can effectively avoid quartz sand layer and carbon leaching material in backwash process from generating mixing, together by the design of anti-mixed grid
When can effectively reduce quartz sand layer to the impact force of activated carbon filter layer, avoid carbon leaching material from situation at random occur,
In addition, the anti-design for running material strainer, the movement that can effectively align carbon leaching material are limited, filtrate is further avoided
Cause to run the problem of expecting because the impact of water flow and quartz sand is detached from from filter material layer and is taken away by water flow, advantageously ensures that active carbon filtration
Expect the stability of structure and the adequacy of filtrate amount, to improve the stability of filtering and extend filtrate service life, guaranteed
Filter effect.
The setting of water distributor effectively reduces the impact force into water in active carbon filter, while ensure that water-flow equation
Uniformity, reduce to carbon leaching material and the disturbance of filtering contaminants, ensure that effluent characteristics.
Carbon leaching material is contained using filtrate band, convenient for from tank body upper opening carry out carbon leaching material it is whole remove and
Replacement, it is easy to operate, speed is fast, and filtrate will not be spread outside in replacement process, can be avoided secondary pollution, be convenient in conjunction with staircase etc.
It is operated, is designed more humanized.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the schematic diagram of the chemicals dosing plant in the present invention；
Fig. 3 is the active carbon filter schematic diagram in the present invention.
Specific embodiment
The purpose of the present invention, advantage and feature, by by the non-limitative illustration of preferred embodiment below carry out diagram and
It explains.These embodiments are only the prominent examples using technical solution of the present invention, it is all take equivalent replacement or equivalent transformation and
The technical solution of formation, all falls within the scope of protection of present invention.
In the description of scheme, it should be noted that term " center ", "upper", "lower", "left", "right", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description and simplification description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " the
Two ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.Also, in the description of scheme
In, it is proximal end by the direction of proximal operator using operator as reference, the direction far from operator is distal end.Below with reference to attached
The electroplating waste water high-efficiency processing system that figure discloses the present invention is illustrated, as shown in Fig. 1 comprising
At least one degradation sedimentation basin 10, is handled the waste water in it by Fenton's reaction and coagulating sedimentation；
Ion exchange pond 50 is connect with the degradation sedimentation basin 10, for being precipitated by the ion exchange resin in it to degradation
Treated in pond 10, and water outlet is handled；
Biological treatment tank 60 is connect with the ion exchange pond 50, for passing through the aerobic sludge in it to ion exchange Chi Chu
Water outlet after reason is handled；
Sedimentation basin 70 is connect with the biological treatment tank 60；
Primary activity carbon filter 80 is connect with the sedimentation basin 70.
Major pollutants in electroplating wastewater are heavy metal ion and COD, and Fenton's reaction is Strong oxdiative process, can will be given up
Recalcitrant chemicals oxygenolysis in water is the biodegradability of waste water to be improved, in addition, after Fenton's reaction compared with small molecule contaminants
Also with the process of coagulating sedimentation, the heavy metal ion in major part waste water can remove, water outlet enters ion exchange later, can
The heavy metal ion in waste water is further removed, then water outlet is subjected to biological treatment and further decreases the COD in waste water, to have
The heavy metal realized in sewage and COD content of effect are up to standard.
Wherein, as shown in Fig. 1, the degradation sedimentation basin 10 is preferably three, and it is useless to be respectively used to different types of plating
The processing of water, such as the sewage treatment of chromate waste water, nickel-containing waste water, copper-containing wastewater containing heavy metal, also, each degradation precipitates
Pond 10 connects independent intermediate pool, and each intermediate pool connects independent ion exchange pond 50, therefore can carry out three kinds of electricity simultaneously
The processing of waste electroplating is to improve treatment effeciency.
Also, for the ease of adding medicament into degradation sedimentation basin 10, multiple degradation sedimentation basins 10 can connect respectively
A chemicals dosing plant is connect, a chemicals dosing plant can also be connected simultaneously, preferably they connect a chemicals dosing plant 20 simultaneously, such as 2 institute of attached drawing
Show, the medication delivery systems 20 include medicinal cupping 201, for configuring, loading medical fluid；
Medicine supplying pipe road 202 connects the medicinal cupping 201 and by medicinal liquid lead explosive barrel therein, the pipeline on the medicine supplying pipe road 202
There is transparent section or observation window 2024 on 2021；
More dosing branches 203 connect the medicine supplying pipe road 202, and control on-off by valve 2031；
Return line 204 connects the medicine supplying pipe road 202 and medicinal cupping 201, controls on-off and itself and medicine supplying pipe road by valve
202 tie point 205 is located at the tie point front end of dosing branch 203 Yu medicine supplying pipe road 202.
Wherein, the medicinal cupping 201 can be known various cylinders, tank structure, the medicinal cupping 201 include at least one into
Material mouth (not shown), the feed inlet can be used for adding various liquid or solids into bucket, such as feed inlet can lead to
Water inlet line connection water source is crossed, so as to realize automatic water-supply.
Also, in order to accelerate dissolution of the medicament in medicinal cupping 201, as shown in Fig. 2, it is additionally provided in the medicinal cupping 201
Blender 207, the blender 207 include the shaft 2072 extending into medicinal cupping, and the lower end of the shaft 2072 connects stirring
Blade 2071, the motor 2073 or similar dynamic structure of its rotation of the upper end connection driving.
As shown in Fig. 2, the medicine supplying pipe road 202 includes pipeline 2021, is disposed with Y type mistake on the pipeline 2021
Filter 2022, dosing pump 2023, valve 2025 and the transparent section or observation window 2024, also, the transparent section or observation window
2024 preferably using transparent PVC pipe or window and its front end for being located at the tie point 205, certainly, the transparent section or observation window
2024 can also use other transparent materials, such as transparent toughened glass or acrylic.
On the other hand, it such as only transparent section or observation window 2024, then needs to will result in one in this way by manually being observed
Fixed manpower loss, it is corresponding, as shown in Fig. 2, the circulation type sewage treatment medication delivery systems further include shooting angle just
To the image collecting device 208 of the transparent section or observation window 2024, described image acquisition device 208 be it is any have take pictures or
The equipment for shooting video capability, such as video camera or CCD, described image acquisition device 208 connect circulation type sewage treatment and supply
The control device of medicine system, also, described image acquisition device 208 starts work when the dosing pump 2023 works, thus
It can be analyzed by the image in collected transparent section or observation window, confirm the uninterrupted of liquid and with the presence or absence of solid
Body solvent.
As shown in Fig. 2, the rear end of the return line 204 and the tie point 205 on medicine supplying pipe road 202 is set its immediately
It is equipped with control valve 206, the control valve 206 connects the control device (not shown), thus passing through transparent section or sight
When examining window 2024 and seeing that medicament in medical fluid is not sufficiently dissolved, the control valve 206 can be turned off by control device, thus
Medical fluid is avoided to be continuously introduced in subsequent pipeline.
Also, as shown in Fig. 2, the return line 204 extends to the bottom section of the medicinal cupping 201, and is connected with
Water distributor 209, the water distributor 209 can be known various shape or structure, such as it can be shower shape, and make institute
State water outlet 2091 on water distributor 209 upward.
In addition, in order to understand the remaining liquid volume of medicinal cupping 201 in time so as to carry out the addition of medical fluid and more subject to
True knows whether medicament is substantially dissolved in solvent, therefore, shown in attached drawing 2, is provided in the medicinal cupping 1 including channel radio
The liquidometer 2010 and strength of fluid sensor 2020 of module are believed, so that control dosing pump stops when liquidometer 2010 triggers
Work and carry out filler in time, with the data that guarantee the stability of medical fluid supply and detect in strength of fluid sensor 2020 and
When the error of data built in control device is more than threshold value, control in the control valve 206 and/or each dosing branch 203 from
Dynamic valve 2031 turns off.
When work, solvent, such as water are added into the medicinal cupping 201 by feed inlet, then add medicament, subsequent start-up is stirred
It mixes device 207 to be stirred, is then turned off the control valve 206, and start the dosing pump 2023 and opening valve 2025 to make medical fluid
It flows back between medicine supplying pipe road 202, return line 204 and medicinal cupping 201, and confirms that solvent is by transparent section or observation window 2024
Whether the liquid inventory in no abundant dissolution and pipeline is normal, such as normal, when needing dosing, turns off the return line 204
On automatic valve, the automatic valve 2031 for opening the control valve 206 and corresponding dosing branch 203 is fed, therefore can be led to
Crossing a system is multiple degradation sedimentation basins 10 for medicine, reduces the cost of equipment.
As shown in Fig. 2, it is also connected on the pipeline between the dosing pump 2023 and medicinal cupping 201 for by liquid pharmaceutical
The offloading pipeline 2030 being introduced into medicinal cupping 201, the offloading pipeline 2030 include pipeline, and the free end of the pipeline is equipped with fast
Connector 20301 and the on-off for passing through 20302 control piper of automatic discharging valve.
When carrying out liquid preparation unloading, such as hydrogenperoxide steam generator, by ton bucket or groove tank car equipped with production liquid medicament
Outlet end is connected on the quick union 20301 of the offloading pipeline 2030 by hose etc., then opens automatic discharging valve
20302, start dosing pump 203, production liquid medicament is turned by circulating line into medicinal cupping 1 by dosing pump 203, thus real
Existing fast discharging, improves the convenience of operation.
In addition, as shown in Fig. 1, being also disposed with sand filtration between the degradation sedimentation basin 10 and ion exchange pond 50
Tank 30 and active carbon filter 40, specifically, the sandfiltration pot 30 connects intermediate pool, the active carbon filter 40 connects ion
Exchange pond 50, by sandfiltration pot 30 can effectively retain remove water in suspended matter, organic matter, colloidal particles, microorganism,
Chlorine, odor and part heavy metal ion etc. are finally reached the effect for reducing water turbidity；It can be into one by active carbon filter 40
Step removal larger molecular organics, ferriferous oxide, chlorine residue etc., so that these ingredients in sewage be avoided to cause in ion exchange resin
Poison influences its treatment effeciency to heavy metal.
As shown in Fig. 1, the degradation sedimentation basin 10 and sedimentation basin 70 are also respectively connected with sludge-tank 100, what they were generated
Sludge is drained into sludge-tank, while the sludge that sedimentation basin 70 is obtained by filtration is partly refluxed in biological treatment tank 60, to subtract
The loss of small aerobic sludge, the outward transport after the dehydration of dehydration device 110 of sludge in the sludge-tank 100 are handled.
It further include cleaning waste water, therefore the waste water treatment system further includes at cleaning waste water also, in electroplating wastewater
The structure of reason, specifically, equally including sequentially connected degradation sedimentation basin 10, intermediate pool, sandfiltration pot 30, living shown in attached drawing 1
Property carbon filter 40 and ion exchange pond 50, the ion exchange pond 50 be connected similarly to biological treatment tank, due to clean waste water
In hardly degraded organic substance it is less, therefore degrade sedimentation basin in carry out its processing when, it is only necessary to carry out normal coagulating sedimentation i.e.
It can.
Further, in order to guarantee effluent characteristics, as shown in Fig. 1, the primary activity carbon filter 80 is also connected with second level
Active carbon filter 90, in addition, since the absorption property of the active carbon of active carbon filter is reduced with using the time to increase, but
Be in backwash often there arises a problem that
(1) when backwash, great deal running water is rushed by bottom to top, is easy to upset Underfill layer and activated carbon filter layer, be caused
Producing water efficiency reduces, and a large amount of thin charcoals are flowed out when producing water；
(2) it is easy to wash away filtrate when also, the positive and negative wash water flow of filtrate is big.
In addition, carbon leaching material is using long afterwards, absorption, filter effect are reduced, and need to replace filtrate, are carrying out active carbon
There is also following problems when the replacement of filtrate:
(1) manually replacement filtrate when, not will pass through upper end opening filtrate is taken out carry out it is more sliding, therefore after generally being emptied by bottom
It is time-consuming and laborious, and it be easy to cause secondary pollution.
(2) filtrate is easily agglomerated using the time after long afterwards, increases the difficulty taken out from bottom.
Therefore in a preferred embodiment, as shown in Fig. 3, active carbon filter (active carbon filter 30, level-one
Active carbon filter 80 and two-stage activated carbon filter 90) it include tank body 1, the tank body 1 includes regular activated carbon filter
All structures, such as backwash structure and the structure just washed, be known technology, repeat no more herein, the tank body 1 includes main body
14, the bottom of the main body 14 be provided with liquid outlet 12 and its top its be hinged with coaxial upper cover 15, so that upper cover can
To open or close, certain upper cover 15 can also be pivotally connected in the one of the top of the main body 14 along 1 axis side of tank body
It on the axis of extension, is opened or closed so that upper cover 15 can horizontally rotate, is provided with handle 16, Ke Yifang at the upper cover 15
Just the opening of carry out upper cover 15.
As shown in Fig. 3, inlet 11 is provided in the upper cover 15, the inlet 11 is connected with water distributor 6, described
Water distributor 6 can be one and the approximate device of gondola water faucet structure, is also possible to a supervisor and respectively supervisor the multiple of periphery have
The structure that the branch pipe of several water outlets is constituted, naturally it is also possible to be other feasible water distributors, to guarantee the uniformity of water distribution.
As shown in Fig. 3, the intracavity bottom of the tank body 1 is filled with quartz sand layer 2, described to provide reliable support
It is covered with carbon leaching material 3 on quartz sand layer 2, and is provided with mesh aperture between them less than quartz sand particle size and activity
The anti-mixed grid 4 of charcoal filtrate particle size, the carbon leaching material 3 is located between anti-mixed grid 4 and anti-race material strainer 5, described
The anti-aperture for running material strainer 5 is less than the particle size of the carbon leaching material, and is located at the lower section of the water distributor 6.
Preferably, the height of the quartz sand layer 2 exists in 300mm ± 10mm, the packed height of the carbon leaching material 3
700 ± 10mm, and the 60% ± 5% of the height and the height for tank body 1 of the quartz sand layer 2 and carbon leaching material 3, pass through quartz
Layer of sand, carbon leaching material height and they account for the design of tank body total height, to guarantee the strainability of carbon leaching material 3 most
It is good.
Further, the protection grid 4 and anti-race material strainer 5 can be two individual components, be also possible to a splendid attire
The part of the filter bag of the carbon leaching material 3, when they are two separate structures, their mesh number is not less than 30 mesh,
And can be fixed respectively by the inner wall of sealing element and tank body 1, it can also be fixed on by other forms on the inner wall of tank body 1,
Such as it is spirally connected；When they are the parts of filter bag, the filter bag is preferably polypropylene filter bag and mesh number is not less than 30 mesh,
Stability with preferable chemical stability and in water, therefore in Sewage Environment, it is not easy to be corroded or damage.
When carrying out active carbon filter assembling of the invention, by taking filter bag as an example, quartz sand is first filled into tank body
Bottom is filled in filter bag in tank body by top of the tank, then carbon leaching material is packed into filter bag after quartz sand is filled
In, the sack of filter bag is knotted again until carbon leaching material is filled into after the height of setting.
Further, since conventional active carbon filter often uses bracket as support, but bracket is not easy to carry out
The overall movement of filter, therefore for the ease of the movement of active carbon filter, as shown in Fig. 3, in the bottom of the tank body 1
It is provided with one group of self-locking universal wheel 13, the self-locking universal wheel 13 can be various feasible structures.
It is additionally provided with and pushes away on the outer wall of the tank body 1 as shown in Fig. 3 for the ease of carrying out the promotion of tank body 1 simultaneously
17, the handle 17 is located at the middle position of the expanded letter, and it is pivotally connected at tank wall, also, handle 17
Be pivotally connected end be additionally provided with screw hole, be provided on the tank body with the matched arc-shaped hole of the through-hole, thus by adjusting
The angle of the adjustable handle 17 in corresponding position of the through-hole in arc-shaped hole, consequently facilitating the staff behaviour of different heights
Make, increases the flexibility of application.
In addition, the height due to tank body is generally higher, it is not easy to directly carry out various operations from its top opening, therefore be
Convenient for the operation such as carrying out feeding from the top of the tank body, reloading, as shown in Fig. 3, also set on the outer wall of the tank body 1
It is equipped with one group of step for being used to ascend a height from low to high 18.
Invention further discloses a kind of electroplating waste water high-efficiency processing methods, include the following steps:
Nickeliferous or cupric or electroplating wastewater of chromium are introduced degradation sedimentation basin and are located in advance by Fenton's reaction and coagulating sedimentation by S1
Reason；When specific operation, nickeliferous, cupric, electroplating wastewater of chromium are introduced into respectively in a degradation sedimentation basin 10, it is then that each degradation is heavy
The pH value adjustment of sewage is to 3-4 in shallow lake pond 10, Fenton medicament is then added into waste water or add ferrous sulfate and hydrogen peroxide into
The specific additive amount of capable reaction, medicament is not existed according to the water quality and quantity of the sewage of heterogeneity by pilot plant test determination herein
Repeat, the reaction time control at 1-2 hours, this is because if the reaction time it is too short, it is not sufficiently reactive between medicament and pollutant,
Removal efficiency is lower；If the reaction time is too long, the reaction efficiency of medicament and pollutant declines, and affects treatment effeciency, and increase
Cost of investment.
After reaction, add lime or alkali by the pH value adjustment of sewage to 9-11, with specific reference to the huge sum of money contained in waste water
Belong to type to be adjusted, sewage is finally subjected to coagulating sedimentation, added medicament is aluminium polychloride and polyacrylamide, is sunk
Water outlet behind shallow lake is introduced between in the intermediate pool connecting with each degradation sedimentation basin 10.
S2, the sewage in each intermediate pool is successively introduced respectively corresponding sandfiltration pot 30 and active carbon filter 40 into
Row filtering, the rate of filtration are controlled in 8-10 m/h, this is because, pollutant easily passes through work with water flow if the rate of filtration is excessive
Property layer of charcoal, causes effluent quality poor, conversely, the rate of filtration is too low, the residence time is too long, and the efficiency of filtering is too low, to throw
It provides cost and operating cost increases.
The waste water filtered by each active carbon filter 40 is introduced independent ion exchange pond 50 by S3, and the ion is handed over
It changes pond 50 and heavy metal ion therein is removed by ion exchange resin, specific ion exchange resin is according to contained heavy metal
Type and water quality carry out preferably, also, in ion exchange, make the operation flow velocity of sewage in 15-25m/h to guarantee filling for exchange
Divide property, so that heavy metal ion be avoided not enter subsequent biological treatment tank, leads to the activated sludge in biological treatment tank
Because of heavy metal pollution.
S4, by treated in each ion exchange pond 50, waste water introduces same aerobic sludge pond 60, is carried out by aerobic sludge
Biological treatment, to other organic matters in sewage significantly be degraded, when carrying out Aerobic biological process, due to aerobic
Biological treatment is removal organic polluter of being made a return journey using the microorganism decomposition metabolism in waste water, and microorganism concn is needed to be maintained at higher
Concentration can be only achieved ideal treatment effeciency, and preferably the activated sludge concentration MLSS of mixed liquor need to be maintained in aerobic tank sludge
3000-5000mg/L；Meanwhile reasonable hydraulic detention time is needed to maintain the sludge concentration in reaction tank to reach ideal
The setting needs for the treatment of effeciency, specific hydraulic detention time are determined according to Pollutants in Wastewater concentration.
In addition, the dissolved oxygen concentration of mixed liquor needs to be maintained at 5 ± 0.5mg/L in aerobic tank, so that being in reaction tank
Aerobic state is unfavorable for the growth of aerobic microbiological if the dissolved oxygen concentration of mixed liquor is too low.
Waste water Jing Guo biological treatment is introduced the filtering of primary activity carbon filter, will filtered by primary activity charcoal by S5
The waste water of device discharges after introducing two-stage activated carbon filter filtering, and the COD of final outflow water is in 80PPM or less.
Still there are many embodiment, all technical sides formed using equivalents or equivalent transformation by the present invention
Case is within the scope of the present invention.
Claims (10)
1. electroplating waste water high-efficiency processing system, it is characterised in that: including
At least one degradation sedimentation basin (10), is handled the waste water in it by Fenton's reaction and coagulating sedimentation；
Ion exchange pond (50), for treated that water outlet carries out to degradation sedimentation basin (10) by the ion exchange resin in it
Processing；
Biological treatment tank (60) is connect with the ion exchange pond (50), for passing through the aerobic sludge in it to ion exchange
Treated in pond, and water outlet is handled；
Sedimentation basin (70) is connect with the biological treatment tank (60)；
Primary activity carbon filter (80) is connect with the sedimentation basin (70).
2. electroplating waste water high-efficiency processing system according to claim 1, it is characterised in that: the degradation sedimentation basin (10) is
At least two, each degradation sedimentation basin (10) pre-process for different types of electroplating wastewater and connect independent ion exchange pond
(50).
3. electroplating waste water high-efficiency processing system according to claim 1, it is characterised in that: the degradation sedimentation basin (10) and
Sandfiltration pot (30) are additionally provided between ion exchange pond (50).
4. electroplating waste water high-efficiency processing system according to claim 3, it is characterised in that: the degradation sedimentation basin (10) and
Active carbon filter (40) are additionally provided between ion exchange pond (50).
5. electroplating waste water high-efficiency processing system according to claim 1, it is characterised in that: the primary activity carbon filter
(80) two-stage activated carbon filter (90) are also connected with.
6. electroplating waste water high-efficiency processing system according to claim 5, it is characterised in that: the active carbon filter
(30), primary activity carbon filter (80) and two-stage activated carbon filter (90) include tank body (1), the tank body (1) it is interior
Bottom of chamber portion is filled with quartz sand layer (2), is covered with carbon leaching material (3) on the quartz sand layer (2), and be provided between them
Mesh aperture is less than anti-mixed grid (4) of quartz sand particle size and carbon leaching material particle size, the carbon leaching material (3)
Between anti-mixed grid (4) and anti-race material strainer (5), the anti-aperture for running material strainer (5) is less than the carbon leaching material
Particle size.
7. electroplating waste water high-efficiency processing method, characterized by the following steps:
Nickeliferous or cupric or electroplating wastewater of chromium are introduced degradation sedimentation basin and are located in advance by Fenton's reaction and coagulating sedimentation by S1
Reason；
S3 will remove heavy metal ion therein by ion-exchange treatment by pretreated waste water；
Waste water Jing Guo ion-exchange treatment is carried out biological treatment by aerobic sludge by S4；
Waste water Jing Guo biological treatment is introduced the filtering of primary activity carbon filter, Chinese effluent by S5.
8. electroplating waste water high-efficiency processing method according to claim 7, it is characterised in that: the S1 is comprised the following processes:
After waste water introduces degradation sedimentation basin, pH value is adjusted to 3-4, Fenton medicament is added and reacts 1-2 hours；Then pH value is adjusted to 9-
11, carry out coagulating sedimentation.
9. electroplating waste water high-efficiency processing method according to claim 7, it is characterised in that: during S1-S4, will contain
Nickel, cupric, electroplating wastewater of chromium are introduced into respectively in respective degradation sedimentation basin, and the water outlet of each degradation sedimentation basin introduces one respectively
In ion exchange pond, the water outlet in each ion exchange pond is introduced into same biological treatment tank.
10. electroplating waste water high-efficiency processing method according to claim 7, it is characterised in that: further include S2, in S3 step
Before, sandfiltration pot will be successively introduced by pretreated waste water and active carbon filter is filtered；It, will be living by level-one in S5
Property carbon filter waste water introduce two-stage activated carbon filter filtering after discharge.
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