CN207537267U - Environmental dredging tail water processing unit based on membrane integrating technique - Google Patents
Environmental dredging tail water processing unit based on membrane integrating technique Download PDFInfo
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- CN207537267U CN207537267U CN201721504263.1U CN201721504263U CN207537267U CN 207537267 U CN207537267 U CN 207537267U CN 201721504263 U CN201721504263 U CN 201721504263U CN 207537267 U CN207537267 U CN 207537267U
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Abstract
The utility model is related to a kind of environmental dredging tail water processing units based on membrane integrating technique.The utility model belongs to environmental dredging tail water processing technology field.Environmental dredging tail water processing unit based on membrane integrating technique, is composed of, pretreatment unit is connected in sequence by sedimentation basin, booster pump, sand filter pretreatment unit, film integrating device and after-treatment device；Film integrating device includes hyperfiltration membrane assembly, security personnel's filter assemblies and reverse osmosis module；Hyperfiltration membrane assembly is made of ultrafiltration entering water electromagnetic valve, ultrafiltration membrane elements, the ultrafiltration concentrated water water solenoid valve being connect with ultrafiltration membrane elements and ultrafiltration production water solenoid valve connection；Connect on cartridge filter hyperfiltration membrane assembly production the mouth of a river, under reversed filtration module water inlet；Reverse osmosis membrane assembly, including protection switch, anti-permeability pump, reverse-osmosis membrane element；After-treatment device, the dosing tank being connect including neutralization pond and with neutralization pond.The utility model has the advantages that automation technolo degree is high, high treating effect, producing water water quality is stablized.
Description
Technical field
The utility model belongs to environmental dredging tail water processing technology field, more particularly to a kind of based on membrane integrating technique
Environmental dredging tail water processing unit.
Background technology
At present, environmental dredging is a lake presence of pollution sources control technology, is on the basis of the dredging works such as navigation channel, river port
Grow up, it is intended to remove the polluted bed mud in lake, and the recovery for lake aquatic ecosystem creates conditions, simultaneously also
It needs mutually to coordinate with lake comprehensive improvement scheme.In Dredging Process, Dredged bed mud will generate a large amount of tail water through minimizing processing.
Largely adhere to containing nitrogen, phosphorus, organic pollution and heavy metal contaminants, these pollutants in environmental dredging tail water
It is discharged into receiving water body on suspended particulate and with tail water, it will cause the secondary pollution of receiving water body, these suspended particulate ratios
Weight is small, is difficult to precipitate removal in the short time.
Current environmental dredging tail water treatment process mainly includes：(1) extending design by the flow path of sedimentation basin increases tail water
Hydraulic detention time, sedimentation available depth, flow velocity, enhance suspended matter its own gravity settlement action, reinforcing particle is in sedimentation basin
Settling efficiency achievees the purpose that remove solid suspension and other pollutants；(2) enhanced by adding chemical flocculation medicament
The settling efficiency of grain object so that pollutant is quickly attached to flocculation on particulate matter and is deposited on sedimentation basin bottom, and upper strata clear water is discharged into
Receiving water body.These techniques all exist certain insufficient in practical applications：(1) water process amount is big, and chemical floc is caused to add
It measures excessive, be easy to cause secondary pollution；(2) chemical agent dosage is not easy to be adjusted according to tail water water quality situation, is discharged water
Matter is unstable.
Invention content
The utility model provides a kind of ring based on membrane integrating technique to solve technical problem present in known technology
Protect dredging tail water processing unit.
The purpose of this utility model is to provide a kind of high with automation technolo degree, high treating effect, environment-friendly high-efficiency, nothing
The environmental dredging tail water processing unit based on membrane integrating technique of the features such as secondary pollution and treatment effect stabilization.
A kind of environmental dredging tail water processing unit based on membrane integrating technique, by pretreatment unit, film integrating device and after
Processing unit forms.The pretreatment unit, including sedimentation basin, booster pump and the sand filter being connect with booster pump；The film collection
Into device, including ultra-filtration filters component, cartridge filter component and osmosis filtration component；The ultra-filtration filters component includes outer
PVDF ultrafiltration membrane element and pressure gauge, normal-open electromagnetic valve and ultrafiltration cleaning case in pressure type ultrafiltration putamina and ultrafiltration putamina,
Wherein ultra-filtration water mouth is connected with cartridge filter, and ultrafiltration concentrated water water outlet is connected with sedimentation basin；The cartridge filter
For the filtration core of polypropylene material that filtering accuracy is 10 μm, water outlet connection reverse osmosis membrane assembly；The reverse osmosis membrane group
Part, including the reverse osmosis membrane inside cleaning water tank and high-pressure pump and the pressure vessel for reverse osmosis and pressure vessel for reverse osmosis that are connect with high-pressure pump
Element, wherein the pipeline being connect with reverse osmosis concentrated water is connected with sedimentation basin；The after-treatment device, including neutralization pond and neutralization
Pond dosing tank.
Environmental dredging tail water processing unit of the utility model based on membrane integrating technique is adopted the technical scheme that：
A kind of environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：Ring based on membrane integrating technique
It protects dredging tail water processing unit to be composed of pretreatment unit, film integrating device and after-treatment device, pretreatment unit is by sinking
Shallow lake pond, booster pump, sand filter are connected in sequence；Film integrating device includes hyperfiltration membrane assembly, security personnel's filter assemblies and reverse osmosis
Component；Hyperfiltration membrane assembly is by ultrafiltration entering water electromagnetic valve, ultrafiltration membrane elements, the ultrafiltration concentrated water water outlet electromagnetism being connect with ultrafiltration membrane elements
Valve connects composition with ultrafiltration production water solenoid valve；The hyperfiltration membrane assembly production mouth of a river is connect on cartridge filter, under the water inlet of reversed filtration module
Mouthful；Reverse osmosis membrane assembly is equipped with reverse osmosis including protection switch, anti-permeability pump, reverse-osmosis membrane element, reverse osmosis concentrated water outlet
Concentrated water solenoid valve；After-treatment device, the dosing tank being connect including neutralization pond and with neutralization pond.
Environmental dredging tail water processing unit of the utility model based on membrane integrating technique can also adopt the following technical scheme that：
The environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：Row is rinsed in sand filter connection
Put pipeline；Ultrafiltration concentrated water discharge mouth is connect by ultrafiltration flushing pipe with sedimentation basin；Reverse osmosis concentrated water outlet passes through reverse osmosis
Flush pipe is connect with sedimentation basin；Anti-permeability pump connection membrane module cleaning medicine-chest.
The environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：Pretreatment unit is equipped with sand
Filter influent pressure gauge, hyperfiltration membrane assembly is equipped with ultrafiltration inlet gage, ultrafiltration production water ga(u)ge, ultrafiltration production water pressure table, reverse osmosis
Permeable membrane component is equipped with into Water Conductance Instrument, feed water by reverse osmosis pressure gauge, and the reverse osmosis produced mouth of a river is connected with production water ga(u)ge and production water
Conductivity meter, the reverse osmosis concentrated mouth of a river are connected with reverse osmosis concentrated water pressure table and reverse osmosis concentrated water ga(u)ge.
The environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：Ultrafiltration membrane is used in PVDF
Empty fiber membrane, filter type are filtered for external-compression type.
The environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：Cartridge filter is aperture
5-10 μm of polypropylene filter core.
The environmental dredging tail water processing unit based on membrane integrating technique, its main feature is that：The reverse osmosis method of operation is
Cross-flow filtration.
The utility model has the advantages and positive effects of：
Environmental dredging tail water processing unit based on membrane integrating technique is as a result of the completely new technical side of the utility model
Case, compared with prior art, the utility model have the characteristics that：
1. the present apparatus sets the regular back washing device of sand filter, waste water caused by backwash is back to sedimentation basin by pipeline,
It is effectively prevented from sand filtration blocking.
2. present apparatus setting ultrafiltration periodic is just rinsing and backwash ensures membrane element flux, solves ultrafiltration membrane elements flux
The problem of decline.
3. the present apparatus sets reverse osmosis periodic flushing, reverse osmosis produced water has been effectively ensured.
4. the present apparatus sets membrane component cleaning device, regular soda acid cleaning is carried out to membrane component, it is dirty effectively to solve membrane component
Dye problem reduces processing cost.
5. the present apparatus realizes the height of tail water processing unit operation by live multi-point on-line monitoring and PLC programming Controls
Degree automation ensures that device is run steadily in the long term.
Description of the drawings
Fig. 1 is environmental dredging tail water processing device structure diagram of the utility model based on membrane integrating technique.
In figure, 1. sedimentation basins, 2. booster pumps, 3. pressure gauges, 4. sand filters, 5. pressure gauges, 6. ultrafiltration entering water electromagnetic valves, 7.
Solenoid valve, 8. solenoid valves, 9. solenoid valves, 10, ultrafiltration membrane elements, 11, solenoid valve, 12, flowmeter, 13, pressure gauge, 14, security personnel
Filter, 15, conductivity meter, 16, protection switch, 17, pressure gauge, 18, high-pressure pump, 19, reverse-osmosis membrane element, 20, medicine-chest,
21st, reverse osmosis concentrated water solenoid valve, 22, reverse osmosis concentrated water ga(u)ge, 23, reverse osmosis concentrated water pressure table, 24, production water ga(u)ge, 25,
Produce Water Conductance Instrument, 26, dosing tank, 27, neutralization pond, 28, ultrafiltration membrane elements, 29, ultrafiltration flushing pipe, 30, reverse osmosis flushing
Pipe.
Specific embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
Refering to attached drawing 1.
Embodiment 1
A kind of environmental dredging tail water processing unit based on membrane integrating technique, by pretreatment unit, film integrating device and after
Processing unit is composed, wherein：Pretreatment unit is sequentially connected by sedimentation basin, booster pump, sand filtration inlet gage, sand filter
It forms；Film integrating device includes hyperfiltration membrane assembly, security personnel's filter assemblies and reverse osmosis module；The hyperfiltration membrane assembly by ultrafiltration into
Water pressure table, ultrafiltration entering water electromagnetic valve, ultrafiltration membrane elements, the ultrafiltration concentrated water water solenoid valve being connect with ultrafiltration membrane elements and ultrafiltration
Produce water solenoid valve, ultrafiltration production water ga(u)ge, ultrafiltration production water pressure table connection composition；Hyperfiltration membrane assembly is connect on the cartridge filter
Produce the mouth of a river, under reversed filtration module water inlet；The reverse osmosis membrane assembly, including into Water Conductance Instrument, low-voltage protective switch, anti-
Permeate inlet gage and reverse osmosis high-pressure pump, reverse-osmosis membrane element and the production water ga(u)ge being connect with the reverse osmosis produced mouth of a river and
Production Water Conductance Instrument and the reverse osmosis concentrated water pressure table being connect with the reverse osmosis concentrated mouth of a river, reverse osmosis concentrated water solenoid valve and reverse osmosis
Concentrated water flowmeter；After-treatment device, the dosing tank being connect including neutralization pond and with neutralization pond.
Discharge tube is rinsed in sand filter connection；The ultrafiltration concentrated water discharge mouth is connected by ultrafiltration flushing pipe and sedimentation basin
It connects；The reverse osmosis concentrated water outlet is connect by reverse osmosis flush pipe with sedimentation basin；The reverse osmosis high-pressure pumps junctional membrane group
Part cleans medicine-chest.Ultrafiltration membrane uses PVDF hollow-fibre membranes, and filter type is filtered for external-compression type.Cartridge filter is 10 μm of aperture
Polypropylene filter core.The reverse osmosis method of operation is cross-flow filtration.
The specific implementation process of the present embodiment：
A kind of environmental dredging tail water processing unit based on membrane integrating technique as shown in Figure 1, by pretreatment unit, film collection
It is formed into device and after-treatment device；Pretreatment unit is connect including sedimentation basin 1 and with sedimentation basin supernatant liquor water outlet
Booster pump 2 and the sand filtration inlet gage 3 being connect with booster pump and the sand filter 4 being connect with pressure gauge；Film integrating device, packet
Include hyperfiltration membrane assembly, security personnel's filter assemblies and reverse osmosis module；The hyperfiltration membrane assembly include the ultrafiltration that is connect with sand filter into
Water pressure table 5 and the ultrafiltration entering water electromagnetic valve 6,7 being connect with ultrafiltration water inlet pipe and the ultrafiltration membrane being connect respectively with solenoid valve 6,7
Element 10,28 and the ultrafiltration concentrated water water solenoid valve 8,9 being connect with hyperfiltration membrane assembly and ultrafiltration produce water solenoid valve 11 and with surpassing
The ultrafiltration production water ga(u)ge 12 of filter production water solenoid valve connection, ultrafiltration production water pressure table 13；The ultrafiltration membrane production water is filtered with security personnel
Device 14 is connected；The reverse osmosis membrane assembly is opened including the conductivity meter 15 that is connect with cartridge filter water outlet, low-voltage variation
It closes 16, feed water by reverse osmosis pressure gauge 17 and reverse osmosis high-pressure pump 18 and reverse-osmosis membrane element 19 and is connect with the reverse osmosis produced mouth of a river
Production water ga(u)ge 24 and production Water Conductance Instrument 25 and connect with the reverse osmosis concentrated mouth of a river reverse osmosis concentrated water pressure table 23, reverse osmosis
Saturating concentrated water solenoid valve 21 and reverse osmosis concentrated water ga(u)ge 22；After-treatment device, including the neutralization pond 27 being connect with reverse osmosis water outlet,
And neutralization pond dosing tank 26.
As shown in Figure 1, discharge tube 28 is rinsed in the connection of sand filter 4；The ultrafiltration concentrated water discharge mouth passes through super
Filter flushing pipe 29 is connect with sedimentation basin 1；The reverse osmosis concentrated water outlet is connected by reverse osmosis flush pipe 30 with sedimentation basin 1
It connects；The 18 connection membrane module cleaning medicine-chest 20 of reverse osmosis high-pressure pump.
During work, tail water first passes around sedimentation basin 1 and precipitates, and goes bulky grain solid pollutant and other impurities in water removal,
Supernatant by booster pump 2 enter sand filter 4, by sand filtration filter medium go water removal in suspended matter, microorganism and other
Subparticle, to reduce water turbidity, water quality is made further to be purified；Water outlet by sand filtration filtering is through entering water electromagnetic valve 6,7
Into ultrafiltration membrane elements 10,28, there is two parts water outlet after two groups of ultrafiltration membrane elements filter, wherein water purification water outlet enters security personnel
Filter 14, concentrated water water outlet enter sedimentation basin 1 by ultrafiltration Backwash pipeline 29；At this time by 14 filtering of cartridge filter
Water outlet afterwards can reach the influent quality requirement of reverse osmosis membrane, and ammonia nitrogen in water can be effectively removed by reverse osmosis 19 processing,
Total phosphorus and heavy metal ion, the water outlet of reverse osmosis two parts, wherein production water goes successively to neutralization pond 27, concentrated water passes through reverse osmosis punching
It washes pipeline 30 and enters sedimentation basin 1；Tail water water quality pH is adjusted by dosing tank 26 in neutralization pond, reaches Tail water reuse standard.
The environmental dredging tail water processing unit of the utility model settles+sand filters+ultrafiltration+reverse osmosis using sedimentation basin
The technique of thoroughly+neutralization pond can be very good to effectively remove the SS in environmental dredging tail water and turbidity, and SS production water can reach
To 1ppm and hereinafter, turbidity is less than or equal to 0.2NTU；Wherein, the ultrafiltration method of operation is external-compression type dead-end filtration, using hollow fibre
PVDF ultrafiltration membrane, pore size filter 10-100nm are tieed up, ultrafiltration pressure is 0.1MPa-0.4MPa, and ultrafiltration membrane flux is 40-
120l/(m2·hr)；Reverse-osmosis membrane element pore size filter is 0.1nm in the present apparatus, to the ammonia in the tail water after hyperfiltration treatment
Nitrogen, total phosphorus and heavy metal ion have better removal effect.The wherein reverse osmosis method of operation be cross-flow filtration, reverse osmosis membrane group
Part operating pressure is 0.7MPa-1.2Mpa, and reverse osmosis membrane flux is 19-27l/ (m2·h).In the present apparatus, neutralization pond is main
The neutralization of tail water pH is carried out, realizes the final qualified discharge of tail water.
The utility model realizes the operation of tail water processing unit by live multi-point on-line monitoring and PLC programming Controls
It is increasingly automated, and it is mating be provided with Membrane cleaning device, allow the annual operation of whole device.The utility model further improves
Water quality after tail water processing, and ensure that device is run steadily in the long term.
The present embodiment has the automation technolo degree height, high treating effect, environment-friendly high-efficiency, non-secondary pollution and place
Manage the good effects such as effect stability.
Claims (6)
1. the environmental dredging tail water processing unit based on membrane integrating technique, it is characterized in that：Environmental dredging based on membrane integrating technique
Tail water processing unit is composed of pretreatment unit, film integrating device and after-treatment device, and pretreatment unit is by sedimentation basin, increasing
Press pump, sand filter are connected in sequence；Film integrating device includes hyperfiltration membrane assembly, security personnel's filter assemblies and reverse osmosis module；It is super
Filter membrane component is by ultrafiltration entering water electromagnetic valve, ultrafiltration membrane elements, the ultrafiltration concentrated water water solenoid valve being connect with ultrafiltration membrane elements and surpasses
Filter production water solenoid valve connection composition；Connect on cartridge filter hyperfiltration membrane assembly production the mouth of a river, under reversed filtration module water inlet；Reverse osmosis
Permeable membrane component, including protection switch, anti-permeability pump, reverse-osmosis membrane element, reverse osmosis concentrated water outlet is equipped with reverse osmosis concentrated water power
Magnet valve；After-treatment device, the dosing tank being connect including neutralization pond and with neutralization pond.
2. the environmental dredging tail water processing unit according to claim 1 based on membrane integrating technique, it is characterized in that：Sand filter
Discharge tube is rinsed in connection；Ultrafiltration concentrated water discharge mouth is connect by ultrafiltration flushing pipe with sedimentation basin；Reverse osmosis concentrated water outlet
It is connect by reverse osmosis flush pipe with sedimentation basin；Anti-permeability pump connection membrane module cleaning medicine-chest.
3. the environmental dredging tail water processing unit according to claim 1 or 2 based on membrane integrating technique, it is characterized in that：In advance
Processing unit is equipped with sand filtration inlet gage, and hyperfiltration membrane assembly is equipped with ultrafiltration inlet gage, ultrafiltration production water ga(u)ge, ultrafiltration production
Water pressure table, reverse osmosis membrane assembly are equipped with into Water Conductance Instrument, feed water by reverse osmosis pressure gauge, and the reverse osmosis produced mouth of a river is connected with production water
Flowmeter and production Water Conductance Instrument, the reverse osmosis concentrated mouth of a river is connected with reverse osmosis concentrated water pressure table and reverse osmosis concentrated water ga(u)ge.
4. the environmental dredging tail water processing unit according to claim 1 or 2 based on membrane integrating technique, it is characterized in that：It is super
Filter membrane uses PVDF hollow-fibre membranes, and filter type is filtered for external-compression type.
5. the environmental dredging tail water processing unit according to claim 1 or 2 based on membrane integrating technique, it is characterized in that：It protects
Peace filter is the polypropylene filter core in 5-10 μm of aperture.
6. the environmental dredging tail water processing unit according to claim 1 or 2 based on membrane integrating technique, it is characterized in that：Instead
The infiltration method of operation is cross-flow filtration.
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| CN201721504263.1U CN207537267U (en) | 2017-11-13 | 2017-11-13 | Environmental dredging tail water processing unit based on membrane integrating technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698062A (en) * | 2017-11-13 | 2018-02-16 | 中交天津港航勘察设计研究院有限公司 | A kind of environmental dredging tail water processing unit based on membrane integrating technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698062A (en) * | 2017-11-13 | 2018-02-16 | 中交天津港航勘察设计研究院有限公司 | A kind of environmental dredging tail water processing unit based on membrane integrating technique |
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