CN106698720A - Treatment method of high-complex wastewater - Google Patents
Treatment method of high-complex wastewater Download PDFInfo
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- CN106698720A CN106698720A CN201611255926.0A CN201611255926A CN106698720A CN 106698720 A CN106698720 A CN 106698720A CN 201611255926 A CN201611255926 A CN 201611255926A CN 106698720 A CN106698720 A CN 106698720A
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- membrane filtration
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
-
- 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
Abstract
The invention relates to the field of wastewater treatment, and discloses a treatment method of high-complex wastewater. The method comprises the following steps: (1) carrying out primary filtration on high-complex wastewater to be treated to remove large-granule impurities in the wastewater; (2) carrying out first membrane filtration under certain operation parameter conditions to separate out a first membrane filtration clear solution and a first membrane filtration concentrated solution; and (3) carrying out second membrane filtration under certain operation parameter conditions, and carrying out second membrane filtration on the first membrane filtration clear solution output by first membrane filtration to remove complexes and EDTA (ethylene diamine tetraacetic acid). The method can be used for treating high-complex wastewater, and can ensure the stable smooth proceeding of the treatment process without easily producing blockage. When being used for treating high-complex wastewater, the method can ensure the stable smooth proceeding of the treatment process without easily producing blockage, and can ensure the effluent water quality of the system.
Description
Technical field
The present invention relates to field of waste water treatment, and in particular to a kind of processing method of complex compound waste water high.
Background technology
Major part electroplating sewerage treatment at present is than relatively low, based on the chemical method of correlation technique comparative maturity with cost.Together
When appropriate be aided with other processing methods.After general electroplating wastewater upon mediation PH, by can reach water outlet after precipitation, filtering
It is required that.In electroplating industry, carry out in electroplating process, enterprise is in order to strengthen the dispersibility of plating solution and then reach the effect of good coating
Really, so that toward adding some compounding ingredients, such as EDTA, nicotinic acid, citrate, tartrate, ethylenediamine etc. in plating solution, this
A little built agents are combined the complex compound of generation stabilization with heavy metal ion, it is impossible to precipitated after being enough directly adjusted PH.
There are shortcomings in existing electroplating and complexing sewage disposal, conventional chemical method：After wastewater treatment, salt content in water
Raise, it is difficult to recycle；Sludge containing heavy metal quantity is big, and separation, dehydration, transport amount are big, and precipitating sludge is hardly
It is recycling, easy secondary pollution, while being also a kind of wasting of resources；Contain complex in waste water, band is separated to chemical precipitation
Come greatly difficult.When having use film method for concentration in the prior art to above-mentioned electroplating and complexing thing waste water, when film concentration proceeds to
Certain phase, film starts dirty stifled phenomenon occur, it is extremely difficult to clear up, the whole processing system of film concentration is difficult to stable operation, last dense
The water yield of contracting is difficult to reach expected requirement.
The content of the invention
The technical problems to be solved by the invention are to provide a kind for the treatment of of the excellent complex compound waste water high for the treatment of effect
Method.
In order to solve above-mentioned problem of the prior art, the present invention is realized using following technological means：
The processing method of present invention complex compound waste water high, comprises the following steps：
(1) large granular impurity that pending complex compound waste water high is first tentatively removed by filtration in waste water is taken；This place
The large granular impurity stated refers to granule foreign of the grain diameter not less than 100 μm.
(2) by the waste water after preliminary filtering by the first membrane filtration remove the heavy metal ion of part and the cloudy of divalence from
Son, first membrane filtration cause waste water running temperature be 0-40 DEG C, operating pressure is 0.4-0.6Mpa, enters membrane conductivity and be
320-3974us/cm, product water conductivity are 53-1018us/cm, product water-carrying capacity is 270-300LPH, outer row's dope flow is 0-
The first membrane filtration dope that the first membrane filtration clear liquid and cycles of concentration are for 5-20 times is isolated under conditions of 17LPH；LPH is expressed as
Flux unit l/h.
(3) the first membrane filtration clear liquid for exporting the first membrane filtration removes complex compound and EDTA by the second membrane filtration,
Second membrane filtration cause waste water running temperature be 0-40 DEG C, operating pressure is 2.4-4.0Mpa, enters membrane conductivity for 210-
7603us/cm, product water conductivity are 3-113us/cm, product water-carrying capacity is 175-210LPH, outer row's dope flow is 0-11LPH bars
The second membrane filtration dope that the second membrane filtration clear liquid and cycles of concentration are for 5-20 times is isolated under part.Outer row's dope is film
The amount of the membrane filtration dope that can be discharged after filtering.
Preferably, the running temperature is 20-30 DEG C.
The core filter assemblies of first membrane filtration include cause waste water enter the membrane filtration module after with vortex side
The membrane filtration structure of the cylindrical filter structure flow filtration that formula is constituted along the diaphragm for successively stacking, first membrane filtration module
Diaphragm is made up of nanofiltration membrane material.The core filter assemblies are the component for playing a role in filtering.
The core filter assemblies of second membrane filtration include cause waste water enter the membrane filtration module after with vortex side
The membrane filtration structure of the cylindrical filter structure flow filtration that formula is constituted along the diaphragm for successively stacking, second membrane filtration module
Diaphragm is made up of reverse osmosis membrane materials.
The first membrane filtration, the second membrane filtration are completely enabled in above-mentioned operation using the core filter assemblies of said structure
Realize that cycles of concentration is 5-20 times under Parameter Conditions.
In order to meet the above-mentioned requirement to membrane filtration structure, the membrane filtration structure include shell, mandrel, filtration,
, the lower cover component for being arranged at mandrel lower end, filtration is socketed on mandrel and passes through the cover assembly for being arranged at mandrel upper end
Between cover assembly and lower cover component, shell is arranged on the outside of filtration and connects respectively fastening structure axial compression
Cap assemblies and lower cover component；
The filtration includes the several flow guiding discs and diaphragm that are axially alternately socketed in successively on mandrel along mandrel；
Each flow guiding disc includes flow guiding disc body and is arranged on flow guiding disc body the first centre bore for being used to coordinate with mandrel
And deviate the first flow-guiding channel of first centre bore, the ring for accommodating correspondence diaphragm is additionally provided with the side of each flow guiding disc body
Shape diversion cavity, each annular diversion cavity is turned on corresponding first flow-guiding channel；
Each diaphragm includes diaphragm body and is arranged on diaphragm body the second centre bore for being used for coordinating with mandrel and inclined
From the second flow-guiding channel of second centre bore, each diaphragm body includes upper diaphragm, lower diaphragm and positioned at upper diaphragm and lower diaphragm
Between cavity, the cavity and the second centre bore are turned on；
Be respectively equipped with sealing structure between each upper diaphragm and the inner edge of corresponding annular diversion cavity, each lower diaphragm with it is corresponding
Annular diversion cavity inner edge between be respectively equipped with sealing structure；
The mandrel is provided with the flow-guiding structure for being turned on the second centre bore of each diaphragm respectively, the flow-guiding structure with it is each
The cavity of diaphragm and the second centre bore constitute net liquid conveying stream, on the mandrel and/or cover assembly and/or lower cover component
It is provided with the net liquid delivery outlet turned on net liquid conveying stream；
First flow-guiding channel of each flow guiding disc is sequentially communicated composition stoste conveying stream with the second flow-guiding channel of each diaphragm,
Stoste delivery outlet is provided with cover assembly, stoste input port is provided with cover assembly or lower cover component, be provided with shell by
Stoste delivery outlet conveys stream with the first passage of the output end conducting of stoste conveying stream and by stoste input port and stoste
Input conducting second channel.
Restricted index is content of microorganisms ＜ 2/ml, total iron content ＜ in the pending complex compound waste water high
0.5mg/l, total hardness ＜ 400mg/l, dioxide-containing silica ＜ 50mg/l, oil content ＜ 5mg/l, the pending complexing high
Controllability subindex is pollution index ＜ 20, content of organics ＜ 100000mg/l in thing waste water.
The preliminary filtering includes the coarse filtration of filtering particle diameter >=20 μm, the secondary filter of filtering particle diameter >=5 μm successively.It is excellent
Select the coarse filtration using filter bag as core filter assemblies.The secondary filter is using filter core as core filter assemblies.
In addition present invention also offers a kind of processing system of the processing method for above-mentioned complex compound waste water high, bag
Include bag type filter device, filter element filtering device, nanofiltration membrane device, reverse osmosis membrane filtration device.
The advantage of the invention is that can be used in the treatment to complex compound waste water high, it is ensured that processing procedure stablize it is unobstructed enter
OK, it is not susceptible to block, while can also ensure that the effluent quality of system.
Below by way of accompanying drawing and specific embodiment, the invention will be further described.
Brief description of the drawings
Fig. 1 is equipment flowsheet of the invention.
Fig. 2 is the schematic diagram of membrane filtration structure in the present invention.
Fig. 3 is the schematic diagram of filtration in the present invention.
Fig. 4 is the structural representation of diaphragm in the present invention.
Fig. 5 is the dirty stifled situation map of membrane component before and after experiment.
Specific embodiment
Embodiment 1
As shown in figure 1, the processing method of the processing method present invention complex compound waste water high of complex compound waste water high of the invention, bag
Include following steps：
(1) large granular impurity that pending complex compound waste water high is first tentatively removed by filtration in waste water is taken；
(2) by the waste water after preliminary filtering by the first membrane filtration remove the heavy metal ion of part and the cloudy of divalence from
Son, first membrane filtration cause waste water running temperature be 0-40 DEG C, operating pressure is 0.4-0.6Mpa, enters membrane conductivity and be
320-3974us/cm, product water conductivity are 53-1018us/cm, product water-carrying capacity is 270-300LPH, outer row's dope flow is 0-
The first membrane filtration dope that the first membrane filtration clear liquid and cycles of concentration are for 5-20 times is isolated under conditions of 17LPH；
(3) the first membrane filtration clear liquid for exporting the first membrane filtration removes complex compound and EDTA by the second membrane filtration,
Second membrane filtration cause waste water running temperature be 0-40 DEG C, operating pressure is 2.4-4.0Mpa, enters membrane conductivity for 210-
7603us/cm, product water conductivity are 3-113us/cm, product water-carrying capacity is 175-210LPH, outer row's dope flow is 0-11LPH's
Under the conditions of isolate the second membrane filtration dope that the second membrane filtration clear liquid and cycles of concentration are for 5-20 times.
Wherein, preferably described running temperature is 20-30 DEG C.Restricted index is in the pending complex compound waste water high
2/ml of content of microorganisms ＜, total iron content ＜ 0.5mg/l, total hardness ＜ 400mg/l, dioxide-containing silica ＜ 50mg/l, oil
Content ＜ 5mg/l.Controllability subindex is pollution index ＜ 20, content of organics ＜ in the pending complex compound waste water high
100000mg/l.The preliminary filtering includes the coarse filtration of filtering particle diameter >=20 μm, the accurate mistake of filtering particle diameter >=5 μm successively
Filter, the clearance that the coarse filtration precision removes clearance and filtering particle diameter >=5 μm for filtering particle diameter >=20 micron impurity is equal
It is more than 98%.It is preferred that the coarse filtration uses filter bag as core filter assemblies.The secondary filter is using filter core as core
Heart filter assemblies.
Present invention also offers a kind of processing system of the processing method for above-mentioned complex compound waste water high, the processing system
Including：Bag type filter device 1, filter element filtering device 2, nanofiltration membrane device 3, reverse osmosis membrane filtration device 4.
Wherein, the core filter assemblies of first membrane filtration include cause waste water enter the membrane filtration module after with whirlpool
The membrane filtration structure of the cylindrical filter structure flow filtration that stream mode is constituted along the diaphragm for successively stacking, the first membrane filtration group
The diaphragm of part is made up of nanofiltration membrane material.The core filter assemblies are the component for playing a role in filtering.Second membrane filtration
Core filter assemblies include causing that waste water is constituted with vortex-like fashion into after the membrane filtration module along the diaphragm for successively stacking
Cylindrical filter structure flow filtration membrane filtration structure, the diaphragm of second membrane filtration module is by reverse osmosis membrane materials structure
Into.As shown in Figure 2, Figure 3, Figure 4, the membrane filtration structure includes shell 1a, mandrel 2a, filtration 3a, is arranged at mandrel 2a
The cover assembly 4a of upper end, the lower cover component 5a for being arranged at mandrel 2a lower ends, filtration 3a are socketed on mandrel 2a and pass through
Between cover assembly 4a and lower cover component 5a, shell 1a is arranged on the outside of filtration 3a and divides fastening structure axial compression
Lian Jie not cover assembly 4a and lower cover component 5a.Each flow guiding disc 301 includes flow guiding disc body and is arranged on flow guiding disc body to use
In the first centre bore 301a coordinated with mandrel 2a and deviate the first flow-guiding channel 301b of first centre bore 301a, respectively lead
Be additionally provided with the side of flow table body accommodate correspondence diaphragm 302 annular diversion cavity 301c, each annular diversion cavity 301c with it is corresponding
The first flow-guiding channel 301b conducting；Each diaphragm 302 includes diaphragm body and is arranged on diaphragm body to be used to match somebody with somebody with mandrel 2a
The the second centre bore 302a for closing and the second flow-guiding channel 302b for deviateing second centre bore 302a, each diaphragm body includes upper
Diaphragm 3021, lower diaphragm 3022 and the cavity 3023 between upper diaphragm 3021 and lower diaphragm 3022, the cavity 3023 with
Second centre bore 302a is turned on；It is respectively equipped between each upper diaphragm 3021 and the inner edge 301d of corresponding annular diversion cavity 301c
Sealing structure 6a, sealing structure is respectively equipped between each lower diaphragm 3022 and the inner edge 301d of corresponding annular diversion cavity 301c
6a；The mandrel 2a is provided with the flow-guiding structure for being turned on the second centre bore 302a of each diaphragm 302 respectively, the flow-guiding structure
Net liquid conveying stream 7a, the mandrel 2a and/or upper lid are constituted with the centre bore 302a of cavity 3023 and second of each diaphragm 302
Component 4a and/or lower cover component 5a are provided with the net liquid delivery outlet 9a turned on net liquid conveying stream 7a；The of each flow guiding disc 301
One flow-guiding channel 301b and the second flow-guiding channel 302b of each diaphragm 302 is sequentially communicated composition stoste conveying stream 8a, in Shang Gai
Component 4a is provided with stoste delivery outlet, and stoste input port is provided with cover assembly 4a or lower cover component 5a, is provided with shell 1a
By the first passage of the output end conducting of stoste delivery outlet and stoste conveying stream 8a and stoste input port 11a is defeated with stoste
The second channel for sending the input of stream 8a to turn on.
Can realize for complex compound waste water high passing through the uniform cloth stream in stoste input port using the membrane filtration structure of said structure
Into flow guiding disc, flowed in radar scanning mode on the surface of flow guiding disc 301, from the first flow-guiding channel 301b and the second flow-guiding channel
The stoste conveying stream that 302b is constituted enters next group of flow guiding disc and diaphragm, in the cylindrical filter structure that whole diaphragm 302 is constituted
It is interior to be flowed in vortex shape, concentrate finally is isolated from stoste delivery outlet, net liquid delivery outlet is isolated clear liquid, is realized to network high
The purpose of compound Waste water concentrating.
Treatment below by way of several groups of experiments on electroplating industry complex compound waste water high to complex compound waste water high of the invention
Method is described further, and four groups of experiments have been carried out altogether, including two groups of check experiments and two groups using the inventive method
Embodiment, the preliminary filtration step of four groups of experiments is identical, and after preliminary filtering, control 1 is only with reverse osmosis membrane in the present invention
Tested by a membrane filtration；Control 2 is to carry out a membrane filtration experiment only with nanofiltration membrane in the present invention；Implement
Example 1 is to be combined with nanofiltration membrane device using reverse osmosis membrane filtration device in the present invention, i.e., by above-mentioned first membrane filtration
The second membrane filtration experiment is carried out after experiment；Embodiment 2 is using reverse osmosis membrane filtration device and nanofiltration membrane in the present invention
Device is combined, i.e., carry out the second membrane filtration experiment after being tested by above-mentioned first membrane filtration.
Above-mentioned four groups of test run parameters such as table 1 below：
Table 1
Product water in table 1 is the cleaner liquid excessively after membrane filtration, and wherein symbol "/" is represented without outer row's dope.It is above-mentioned
Four groups of experiments are as shown in table 2 below to the situation of the final retention of the various materials of COD, copper ion, ammonia nitrogen, nickel ion in waste water；
Table 2
Result of the test shows：1 pair of rejection of ammonia nitrogen, nickel ion rejection of control are relatively low, each material in 2 pairs of waste water of control
Effect rejection for minimum, the symbol "/" in table 2 represents that control 2 pairs is not retained to ammonia nitrogen, especially for complex compound
Rejection be minimum, the complex compound content highest that its final qualitative detection goes out；Embodiment 1, embodiment 2 are to each material in waste water
Rejection it is relatively good.Membrane module to above-mentioned control 1, control 2, embodiment 1, embodiment 2 carries out testing front and rear and acid
Wash, the fouling membrane after alkali cleaning and membrane flux recovery situation are tested, upcheck to before and after membrane module experiment and acid
Wash, the throughput of clear water is represented after alkali cleaning.Assay as shown in figure 5, in Fig. 5 ordinate be clear water throughput, indulge sit
Target unit is LPH, wherein the 1st group of experiment correspondence control 1, second group of experiment correspondence check experiment 2, the 3rd group of correspondence embodiment 1
In the first membrane filtration and 4 groups of experiments correspondence embodiments 1 in the second membrane filtration, the first film mistake in the 5th group of correspondence embodiment 2
The second membrane filtration in filter embodiment 2 corresponding with 6 groups.
Shown according to test data and sampling inspection results：Using above-mentioned control 2, embodiment 1, embodiment 2 first
Membrane filtration, the membrane flux of off-test its membrane module is fully able to recover；This waste water, its membrane flux are processed using above-mentioned control 1
Loss 7.1%, processes this waste water the second membrane filtration loss amount and is reduced to 3.2% compared to the 7.1% of control 1 using embodiment 2.
Therefore, above-mentioned four groups of experiments to the retention situation of each material in waste water and four groups of experiments before and after being tested with
And the result of testing of the fouling membrane and membrane flux recovery situation after pickling, alkali cleaning shows, height is complexed using the present invention
The treatment of thing waste water, ensure that processing procedure stablize it is unobstructed carry out, be not susceptible to block, while can also ensure that going out for system
Water water quality.
Claims (9)
1. the processing method of complex compound waste water high, it is characterised in that：Comprise the following steps：
(1) large granular impurity that pending complex compound waste water high is first tentatively removed by filtration in waste water is taken；
(2) waste water after preliminary filtering is removed the heavy metal ion of part and the anion of divalence by the first membrane filtration,
First membrane filtration cause waste water running temperature be 0-40 DEG C, operating pressure is 0.4-0.6Mpa, enters membrane conductivity for 320-
3974us/cm, product water conductivity are 53-1018us/cm, product water-carrying capacity is 270-300LPH, outer row's dope flow is 0-17LPH
Under conditions of isolate the first membrane filtration dope that the first membrane filtration clear liquid and cycles of concentration are for 5-20 times；
(3) the first membrane filtration clear liquid for exporting the first membrane filtration removes complex compound and EDTA by the second membrane filtration, and this
Two membrane filtrations cause waste water running temperature be 0-40 DEG C, operating pressure is 2.4-4.0Mpa, enters membrane conductivity for 210-
7603us/cm, product water conductivity are 3-113us/cm, product water-carrying capacity is 175-210LPH, outer row's dope flow is 0-11LPH's
Under the conditions of isolate the second membrane filtration dope that the second membrane filtration clear liquid and cycles of concentration are for 5-20 times.
2. the processing method of complex compound waste water high as claimed in claim 1, it is characterised in that：The running temperature is 20-30
℃。
3. the processing method of complex compound waste water high as claimed in claim 1, it is characterised in that：The core of first membrane filtration
Filter assemblies include causing waste water into the column constituted along the diaphragm for successively stacking with vortex-like fashion after the membrane filtration module
The membrane filtration structure of filtration flow filtration, the diaphragm of first membrane filtration module is made up of nanofiltration membrane material.
4. the processing method of complex compound waste water high as claimed in claim 1, it is characterised in that：The core of second membrane filtration
Filter assemblies include causing waste water into the column constituted along the diaphragm for successively stacking with vortex-like fashion after the membrane filtration module
The membrane filtration structure of filtration flow filtration, the diaphragm of second membrane filtration module is made up of reverse osmosis membrane materials.
5. the processing method of the complex compound waste water high as described in claim 3 or 4, it is characterised in that the membrane filtration structure bag
Include shell (1a), mandrel (2a), filtration (3a), the cover assembly (4a) for being arranged at mandrel (2a) upper end, be arranged at mandrel
The lower cover component (5a) of (2a) lower end, filtration (3a) is socketed on mandrel (2a) and by fastening structure axial compression in upper
Between cap assemblies (4a) and lower cover component (5a), shell (1a) is arranged on the outside of filtration (3a) and connects upper lid group respectively
Part (4a) and lower cover component (5a)；
The filtration (3a) includes the several flow guiding discs being axially alternately socketed in successively on mandrel (2a) along mandrel (2a)
And diaphragm (302) (301)；
Each flow guiding disc (301) is including flow guiding disc body and is arranged on flow guiding disc body in be used for coordinating with mandrel (2a) first
Heart hole (301a) and deviate first flow-guiding channel (301b) of first centre bore (301a), on the side of each flow guiding disc body
It is additionally provided with the annular diversion cavity (301c) for accommodating correspondence diaphragm (302), each annular diversion cavity (301c) and corresponding first water conservancy diversion
Passage (301b) is turned on；
Each diaphragm (302) is including diaphragm body and is arranged on diaphragm body the second centre bore for being used to coordinate with mandrel (2a)
(302a) and deviate second flow-guiding channel (302b) of second centre bore (302a), each diaphragm body includes upper diaphragm
(3021), lower diaphragm (3022) and the cavity (3023) between upper diaphragm (3021) and lower diaphragm (3022), the cavity
(3023) turned on the second centre bore (302a)；
Sealing structure is respectively equipped between each upper diaphragm (3021) and the inner edge (301d) of corresponding annular diversion cavity (301c)
(6a), sealing structure is respectively equipped between each lower diaphragm (3022) and the inner edge (301d) of corresponding annular diversion cavity (301c)
(6a)；
The mandrel (2a) is provided with the flow-guiding structure for being turned on second centre bore (302a) of each diaphragm (302) respectively, described
Flow-guiding structure constitutes net liquid and conveys stream (7a), institute with the cavity (3023) and the second centre bore (302a) of each diaphragm (302)
State mandrel (2a) and/or cover assembly (4a) and/or lower cover component (5a) is provided with and conveys the net of stream (7a) conducting with net liquid
Liquid delivery outlet (9a)；
First flow-guiding channel (301b) of each flow guiding disc (301) connects successively with second flow-guiding channel (302b) of each diaphragm (302)
The logical stoste that constitutes conveys stream (8a), stoste delivery outlet is provided with cover assembly (4a), in cover assembly (4a) or lower cover group
Part (5a) is provided with to be provided with stoste input port, shell (1a) and stoste delivery outlet is led with the output end of stoste conveying stream (8a)
Logical first passage and the second channel by the input conducting of stoste input port (11a) and stoste conveying stream (8a).
6. the processing method of complex compound waste water high as claimed in claim 1, it is characterised in that：The pending complex compound high
Restricted index is 2/ml of content of microorganisms ＜, total iron content ＜ 0.5mg/l, total hardness ＜ 400mg/l, titanium dioxide in waste water
Silicone content ＜ 50mg/l, oil content ＜ 5mg/l, controllability subindex is pollution index ＜ in the pending complex compound waste water high
20, content of organics ＜ 100000mg/l.
7. the processing method of complex compound waste water high as claimed in claim 1, it is characterised in that：The preliminary filtering includes successively
Filter coarse filtration, the secondary filter of filtering particle diameter >=5 μm of particle diameter >=20 μm.
8. the processing method of complex compound waste water high as claimed in claim 7, it is characterised in that：The coarse filtration is made using filter bag
It is filter kernel component.
9. the processing method of complex compound waste water high as claimed in claim 7, it is characterised in that：The secondary filter uses filter core
As filter kernel component.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109354086A (en) * | 2018-12-18 | 2019-02-19 | 河北工业大学 | A kind of method of complexing agent enhancing nanofiltration membrane catching heavy metal ion |
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