CN207748952U - A kind of electroplating wastewater reclaimer - Google Patents
A kind of electroplating wastewater reclaimer Download PDFInfo
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- CN207748952U CN207748952U CN201721638657.6U CN201721638657U CN207748952U CN 207748952 U CN207748952 U CN 207748952U CN 201721638657 U CN201721638657 U CN 201721638657U CN 207748952 U CN207748952 U CN 207748952U
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Abstract
A kind of electroplating wastewater reclaimer, it include the pretreatment unit for removing the particle suspensions in electroplating wastewater, cation resin exchange unit for removing the metal ion in electroplating wastewater, ultra filtration unit for retaining macromolecular in electroplating wastewater, for reducing the reverse osmosis units and controller of processing water conductivity, the water inlet of pretreatment unit is connected to extraneous pending electroplating wastewater discharge outlet, the water outlet of pretreatment unit is connected to the water inlet of cation resin exchange unit, pretreatment unit, cation resin exchange unit, corresponding control valve is configured on ultra filtration unit and the corresponding pipeline of reverse osmosis units, signal output end of the control terminal of the control valve respectively with the controller is electrically connected, realize the control to each unit.The utility model has the beneficial effects that：The constantly improve utilization rate of water reduces the cost with water, and produces water water, water stabilization.Whole system is reliable, stablizes and has very strong practicability.
Description
Technical field
The utility model is related to a kind of electroplating wastewater reclaimers.
Background technology
China has become electroplating industry big country at present, in major coastal cities such as Pearl River Delta, the Yangtze River Delta, all establishes significantly
Slight electroplate factory.It is of high cost with water in electroplating industry, it has also become the recognized problem in industry.At present the shortcomings that treatment process：
Waste water water after front-end processing is larger, about 15m3/ h, is directly over simple sand filtration and carbon filter processing is just discharged, and gives up
Water process is incomplete, and the heavy metal direct emission in one side electroplating wastewater can pollute, another aspect waste water resource, and
And the problems such as due to technological difficulties, can not recycle.
Invention content
In order to solve the problems, such as above-mentioned electroplating wastewater can not recycle, the wasting of resources, the utility model proposes one
Kind handles electroplating wastewater, recycles, saves the electroplating wastewater recovery process and electroplating wastewater reclaimer of water resource.
A kind of utility model electroplating wastewater reclaimer described in the utility model, it is characterised in that：Including being used to remove
The pretreatment unit of particle suspensions in electroplating wastewater is handed over for removing the resin cation of the metal ion in electroplating wastewater
Change unit, for retain the ultra filtration unit of macromolecular in electroplating wastewater, for reducing processing water conductivity reverse osmosis units with
And controller, the water inlet of the pretreatment unit are connected to extraneous pending electroplating wastewater discharge outlet, the pre-treatment list
The water outlet of member is connected to the water inlet of cation resin exchange unit, and the water outlet of the cation resin exchange unit is divided into
Two-way, the first via access the water inlet of ultra filtration unit for discharging the plating water for meeting discharge standard, the second road, ultra filtration unit
The concentrated water outlet of the water inlet pipeline connection of discharge outlet and reverse osmosis units, the reverse osmosis units introduces wastewater collection pond, institute
The regeneration water out for stating reverse osmosis units is divided into two-way, third road directly with water equipment pipeline connection, the 4th tunnel and tap water
Collecting pit pipeline connection, pretreatment unit, cation resin exchange unit, ultra filtration unit and the corresponding pipeline of reverse osmosis units
The corresponding control valve of upper configuration, the signal output end of the control terminal of the control valve respectively with the controller are electrically connected, and realize pair
The control of each unit；
The pretreatment unit includes electroplating wastewater stock solution collection bucket, the first delivery pump, for removing electroplating wastewater stoste
In particle suspensions filter element and for store just processing plating prefiltration liquid prefiltration liquid collecting vessel, the plating
The water inlet of waste water stock solution collection bucket is connected to as the water inlet of pretreatment unit with extraneous pending electroplating wastewater discharge outlet,
The water inlet pipeline connection of the water outlet of the electroplating wastewater stock solution collection bucket and first delivery pump, first delivery pump
Water outlet and the filter element water inlet pipeline connection, water outlet the going out as pretreatment unit of the filter element
The water inlet pipeline connection at the mouth of a river and the cation resin exchange unit；The filter element includes sand filtration apparatus and carbon
Equipment is filtered, wherein the water inlet end of the sand filtration apparatus connects as the water inlet of filter element and the water outlet pipeline of the first delivery pump
Logical, the water outlet of the water inlet end pipeline connection of the water outlet of the sand filtration apparatus and carbon filter equipment, the carbon filter equipment is made
For the water inlet pipeline connection of the water outlet and cation resin exchange unit of filter element；
The cation resin exchange unit is caught including the second delivery pump, first filter, at least a set of resin cation
Catch tower and for storing the ultrafiltration raw water collection bucket for removing metal ion water, water inlet and the filtering of second delivery pump
The water outlet pipeline of unit is connected to, and the water outlet of second delivery pump is connected to the water inlet of the first filter, described
The inlet pipeline connection of the water outlet of first filter and the cation capture resin tower, the cation capture resin tower
Metal chelation resin of the interior filling for adsorbing the metal ion in electroplating wastewater；The water outlet of the cation capture resin tower
It is connected to the water inlet of the ultrafiltration raw water collection bucket, the water outlet of the ultrafiltration raw water collection bucket is as cation resin exchange
The water outlet of unit is divided into two-way, and the wherein first via accesses downstream for discharging the plating water for meeting discharge standard, the second road
The water inlet of ultra filtration unit；
The ultra filtration unit includes the first booster pump, the second filter, at least a set of ultrafiltration host and reverse osmosis collection
Pond, the second road pair of the water inlet of first booster pump as the water inlet and the ultrafiltration raw water collection bucket of ultra filtration unit
The water outlet pipeline connection answered；The water outlet of first booster pump is connected to the water inlet of second filter, and described
The water outlet of tow filtrator introduces the water inlet end of the ultrafiltration host, and ultrafiltration membrane, the ultrafiltration master are installed in the ultrafiltration host
The discharge outlet of machine is equally divided into two-way, wherein the 5th tunnel meets the plating water of discharge standard by respective line direct emission, the
Six pass enter reverse osmosis collecting pit；
The reverse osmosis units include the second booster pump, third filter, at least a set of reverse osmosis host and wastewater collection
Pond, the import of second booster pump are connected to the water outlet of the reverse osmosis collecting pit, and the outlet of second booster pump is drawn
Enter the entrance of third filter, the inlet communication of the outlet and the reverse osmosis host of the third filter, the reverse osmosis
Reverse osmosis membrane is installed, the concentrated water outlet of the reverse osmosis host introduces wastewater collection pond, the reverse osmosis host in saturating host
Regeneration water out is divided into two-way, third road directly with water equipment pipeline connection, the 4th tunnel and tap water collecting pit pipeline connection.
The cation resin exchange unit adds a set of Acid-Base regenerating unit, and the ultra filtration unit adds a set of recoil
Cleaning device is used for resin regeneration, transition and backwash；The Acid-Base regenerating unit includes the first backwash water tank, for storing acid
The sour bucket of liquid and alkali bucket for storing lye, the water inlet of the backwash water tank are connected to external source, and described first is anti-
The water outlet of water tank by regenerating the backwash water of water injecting pump and respective line and the cation capture resin tower accordingly
Inlet communication；The acid water outlet of bucket, alkali bucket water outlet by soda acid chemicals dosing plant and cation capture resin tower again
Raw inlet communication realizes to resin regeneration, transition and backwash, the soda acid chemicals dosing plant include corresponding regenerated acid alkali pump with
And corresponding delivery pipe, the import of the regenerated acid alkali pump are connected with the water outlet of the water outlet of corresponding sour bucket, alkali bucket, regeneration
The outlet of acid and alkali pumps and the regeneration inlet communication of cation capture resin tower, and it is equipped with control valve on corresponding pipeline；
The back purge system is similar with the Acid-Base regenerating unit structure, and regeneration water injecting pump is only changed to backwash water
Pump equally includes the second backwash water tank, the sour cylinder for storing acid solution and the alkali cylinder for storing lye, second backwash
The water inlet of water tank is connected to external source, and the water outlet of the second backwash water tank by corresponding backwash water pump and
The backwash water inlet communication of respective line and the ultrafiltration host；The water outlet of the acid cylinder, the water outlet of alkali cylinder pass through soda acid
The regeneration inlet communication of chemicals dosing plant and ultrafiltration host realizes the backwash to ultrafiltration membrane and chemical cleaning；The soda acid dosing
Device includes corresponding regenerated acid alkali pump and corresponding delivery pipe, and the import of the regenerated acid alkali pump goes out with corresponding sour cylinder
The mouth of a river, the water outlet of alkali cylinder are connected, the outlet of regenerated acid alkali pump and the regeneration inlet communication of cation capture resin tower, and phase
It is equipped with control valve on the pipeline answered.
The ultra filtration unit adds a set of chemical cleaning system, is used for the chemical cleaning of ultrafiltration membrane；The chemical cleaning system
System includes chemical cleaning water tank, corresponding chemical cleaning pump, chemical cleaning accurate filter and corresponding delivery pipe, describedization
The import for learning cleaning pump is connected with the water outlet of chemical cleaning water tank, the outlet of chemical cleaning pump and the chemical cleaning precision mistake
The inlet communication of filter, the outlet of the chemical cleaning accurate filter and the backwash water inlet communication of ultrafiltration host, and phase
It is equipped with control valve on the pipeline answered.
The ultrafiltration host also adds air purge system, and the air purge system includes air source and air purge valve, and the air source is logical
It crosses snorkel to be connected to the gas feed of ultrafiltration host, and is equipped with air purge valve on snorkel.
The metal chelation resin loaded in the cation capture resin tower is weak-acid cation-exchange resin, for going
Except the Ni in electroplating wastewater2+、Cu2+And Cr6+, and the exit of the cation capture resin tower is with being useful for examining automatically
Measure the ORP automatic controllers of water pH, the control terminal of the ORP automatic controllers and the signal output end electricity of the controller
Even.
The retention aperture of the ultrafiltration membrane loaded in the ultrafiltration host is 0.0012~0.05 μm.
The cation capture resin tower, ultrafiltration host and reverse osmosis host are two sets, and a set of normal use is a set of
It is spare.
It is automatic that a set of pH for controlling the row of waiting for plating water pH is respectively configured at the first via and prefiltration liquid collecting vessel
Control system, the pH automatic control systems include for detecting the pH automatic controllers of pH value, first for acid solution to be added
Automatic Dosing metering pump and the second Automatic Dosing metering pump for lye to be added, the detecting electrode of the pH automatic controllers
It is contacted with the row's of waiting for plating water in pipe, the signal output end of the detecting electrode and the first signal of the pH automatic controllers input
End is electrically connected, and the pH automatic controllers are equipped with the digital display screen for setup parameter, the signal output of the pH automatic controllers
The control terminal respectively with the control terminal of the first Automatic Dosing metering pump, the second Automatic Dosing metering pump is held to be electrically connected, institute
The inlet of the inlet, the second Automatic Dosing metering pump of stating the first Automatic Dosing metering pump respectively with acid solution storage tank,
Lye storage tank is connected to.
A kind of electroplating wastewater recovery process described in the utility model, includes the following steps：
1) pending electroplating wastewater stoste is subjected to preliminary filtering, the graininess removed in electroplating wastewater stoste suspends
It is collected after impurity, obtains treatment fluid A；
2) it will clean by bag filter after treatment fluid A adjustment pH value, obtain treatment fluid B；
3) treatment fluid B is passed through into heavy metal chelate resin, collects, obtains after the heavy metal ion in removal treatment fluid B
Obtain treatment fluid C；
4) whether detection process liquid C meets electroplating wastewater discharge standard, if meeting, is directly discharged；If not according with
Discharge standard is closed, needs to be further processed；
5) the treatment fluid C for not meeting discharge standard is cleaned by bag filter, obtains treatment fluid D；
6) treatment fluid D is subjected to hyperfiltration treatment, removes macromolecular substances of its middle-molecular-weihydroxyethyl more than ultrafiltration membrane retention aperture,
It obtains treatment fluid E and meets the concentrated water A of discharge standard, wherein concentrated water A is directly discharged, and treatment fluid E is carried out in next step
Processing；
7) treatment fluid E is subjected to reverse-osmosis treated after corresponding booster pump and cartridge filter processing, wherein
The concentrated water B of acquisition enters wastewater collection pond, and the purified water for meeting water supply standard of acquisition is directly connected with external water equipment, more
Remaining purified water introduces spare in tap water collecting pit.
The utility model has the beneficial effects that：After the technique of script, setting " resin cation+ultrafiltration " (advanced treating+
In-line coagulation) equipment, its object is to remove the metal ion (Ni in script waste water2+、Cu2+、Cr6+), it basically reaches
《Pollutant emission standard is electroplated》It is required that.After this technique, setting " reverse osmosis " (recycling waste water) equipment, the purpose is to reduce place
The conductivity in water is managed, this water recoverable reduces pollutant emission；This system equipment be exactly on the basis of the present situation,
It proposes and realizes a whole set of " waste water carries mark and reuse after electroplating processes " flow and equipment.This equipment have simultaneously manually with
Automatically, two kinds of control modes, human cost is low, and equipment initial stage input is relatively low.After the system equipment use, constantly improve water
Utilization rate reduces the cost with water, and produces water water, water stabilization.Whole system is reliable, stablizes and has very strong practicality
Property.
Description of the drawings
Fig. 1 is one of structure chart of the utility model.
Fig. 2 be the structure chart of the utility model two (in figure A1 be system water inlet, A2 be HCl be added mouth, B represent tree
Fat tank is intake).
Specific implementation mode
The utility model is further illustrated below in conjunction with the accompanying drawings
With reference to attached drawing：
A kind of electroplating wastewater reclaimer described in the utility model of utility model embodiment 2, including be used to remove plating
The pretreatment unit 1 of particle suspensions in waste water, the cation resin exchange for removing the metal ion in electroplating wastewater
Unit 2, the ultra filtration unit 3 for retaining macromolecular in electroplating wastewater, for reducing processing water conductivity reverse osmosis units 4 with
And controller, the water inlet of the pretreatment unit are connected to extraneous pending electroplating wastewater discharge outlet, the pre-treatment list
The water outlet of member is connected to the water inlet of cation resin exchange unit, and the water outlet of the cation resin exchange unit is divided into
Two-way, the first via are discharged according to plating water quality standard, and the water inlet of ultra filtration unit is accessed on the second road, the discharge outlet of ultra filtration unit with it is anti-
The concentrated water outlet of the water inlet pipeline connection of permeation unit, the reverse osmosis units introduces wastewater collection pond, the reverse osmosis list
The regeneration water out of member is divided into two-way, third road directly with water equipment pipeline connection, the 4th tunnel and tap water collecting pit pipeline
It is connected to, configuration is corresponding on pretreatment unit, cation resin exchange unit, ultra filtration unit and the corresponding pipeline of reverse osmosis units
Control valve, the signal output end of the control terminal of the control valve respectively with the controller is electrically connected, realizes to each unit
Control；
The pretreatment unit 1 includes electroplating wastewater stock solution collection bucket 11, the first delivery pump 12, for removing electroplating wastewater
The filter element 13 of particle suspensions in stoste and the prefiltration liquid collecting vessel 14 that prefiltration liquid is electroplated for storing just processing,
Water inlet and extraneous pending electroplating wastewater of the water inlet of the electroplating wastewater stock solution collection bucket 11 as pretreatment unit
Discharge outlet 5 is connected to, and front-end processing water is intake and is introduced in electroplating wastewater stock solution collection bucket 11, the electroplating wastewater stock solution collection bucket
The water inlet pipeline connection of 11 water outlet and first delivery pump 12, water outlet and the mistake of first delivery pump 12
Filter the water inlet pipeline connection of unit 13, the water outlet of the filter element as pretreatment unit water outlet with it is described it is positive from
The water inlet pipeline connection of subtree Ester exchange unit；The filter element 13 includes that sand filtration apparatus 131 and carbon filter equipment 132,
Described in sand filtration apparatus 131 water inlet end as filter element 13 water inlet and the first delivery pump 12 water outlet pipeline connect
It is logical, the water inlet end pipeline connection of the water outlet of the sand filtration apparatus 131 and carbon filter equipment 132, the carbon filter equipment 132
Water outlet is as the water outlet of filter element 13 and the water inlet pipeline connection of cation resin exchange unit 2；
The cation resin exchange unit 2 is caught including 22, two sets of the second delivery pump 21, first filter resin cations
Catch tower 23 and for storing the ultrafiltration raw water collection bucket 24 for removing metal ion water, the water inlet of second delivery pump 21 and institute
State the water outlet pipeline connection of filter element 13, the water inlet of the water outlet and the first filter 22 of second delivery pump 21
Mouth connection, the inlet pipeline connection of the water outlet of the first filter 22 and the cation capture resin tower 23 are described
The metal chelation resin for adsorbing the metal ion in electroplating wastewater is loaded in cation capture resin tower 23；The cation
The water outlet of capture resin tower 23 is connected to the water inlet of the ultrafiltration raw water collection bucket 24, the ultrafiltration raw water collection bucket 24
Water outlet is divided into two-way as the water outlet of cation resin exchange unit 2, and wherein first via access meets discharge for discharging
The water inlet of the ultra filtration unit 3 in downstream is accessed on the plating water outer water system of standard, the second road；The ultra filtration unit 3 includes the
One booster pump 31,32, two sets of ultrafiltration hosts 33 of the second filter and reverse osmosis collecting pit 34, first booster pump 31
Water inlet with second tunnel of the ultrafiltration raw water collection bucket 24 corresponding water outlet pipeline connection of the water inlet as ultra filtration unit；
The water outlet of first booster pump 31 is connected to the water inlet of second filter 32, the water outlet of second filter 32
Mouth introduces the water inlet end of the ultrafiltration host 33, and ultrafiltration membrane, the draining of the ultrafiltration host 33 are installed in the ultrafiltration host 33
Mouth is equally divided into two-way, wherein the 5th tunnel meets the plating water of discharge standard by respective line direct emission, the 6th pass enters
Reverse osmosis collecting pit 34；
The reverse osmosis units 4 include the second booster pump 41,42, two sets of reverse osmosis hosts 43 of third filter, waste water receipts
Collect pond 44 and tap water collecting pit 45, the import of second booster pump 41 and the water outlet of the reverse osmosis collecting pit 34 connect
Logical, the outlet of second booster pump 41 introduces the entrance of cartridge filter 42, the outlet of the third filter 42 and institute
The inlet communication of reverse osmosis host is stated, reverse osmosis membrane is installed in the reverse osmosis host, the concentrated water of the reverse osmosis host 43 goes out
Mouthful introduce wastewater collection pond 44, the regeneration water out of the reverse osmosis host 43 is divided into two-way, and third road is directly and water equipment
46 pipeline connections, the 4th tunnel and 45 pipeline connection of tap water collecting pit.
First filter can be bag filter or accurate filter, and the second filter is bag filter, third
Filter is cartridge filter.
The cation resin exchange unit 2 adds a set of Acid-Base regenerating unit 25, for resin regeneration, transition and
Backwash；The Acid-Base regenerating unit 25 is including the first backwash water tank 251, the sour bucket 252 for storing acid solution and for storing
The water inlet of the alkali bucket 253 of lye, the first backwash water tank 251 is connected to external source, the water outlet of the backwash water tank 251
Mouthful by regenerating the backwash water inlet communication of water injecting pump and respective line and the cation capture resin tower 23 accordingly；Institute
State the water outlet of sour bucket 252, alkali bucket 253 water outlet by the regeneration of soda acid chemicals dosing plant and cation capture resin tower 23 into
Mouth connection realizes that the soda acid chemicals dosing plant includes corresponding regenerated acid alkali pump and phase to resin regeneration, transition and backwash
The delivery pipe answered, the import of the regenerated acid alkali pump are connected with the water outlet of the water outlet of corresponding sour bucket, alkali bucket, regenerated acid and alkali
The outlet of pump and the regeneration inlet communication of cation capture resin tower, and it is equipped with control valve on corresponding pipeline；
The ultrafiltration apparatus 3 adds a set of back purge system 35, the back purge system and the Acid-Base regenerating unit 25
Structure is similar, and regeneration water injecting pump is only changed to backwash water pump, includes equally the second backwash water tank 351, for storing acid solution
Sour cylinder 352 and alkali cylinder 353 for storing lye, the water inlet of the second backwash water tank 351 are connected to external source, and
And the water outlet of the second backwash water tank 351 passes through the anti-of corresponding backwash water pump and respective line and the ultrafiltration host
Wash water inlet communication；The acid water outlet of cylinder, alkali cylinder water outlet by the regeneration of soda acid chemicals dosing plant and ultrafiltration host into
Mouth connection, realizes the backwash to ultrafiltration membrane and chemical cleaning；The soda acid chemicals dosing plant include corresponding regenerated acid alkali pump with
And corresponding delivery pipe, the import of the regenerated acid alkali pump are connected with the water outlet of the water outlet of corresponding sour cylinder, alkali cylinder, regeneration
The outlet of acid and alkali pumps and the regeneration inlet communication of cation capture resin tower, and it is equipped with control valve on corresponding pipeline.
The ultra filtration unit 3 adds a set of chemical cleaning system, is used for the chemical cleaning of ultrafiltration membrane；The chemical cleaning system
System includes chemical cleaning water tank 37, corresponding chemical cleaning pump, chemical cleaning accurate filter and corresponding delivery pipe, described
The import of chemical cleaning pump is connected with the water outlet of chemical cleaning water tank, and the outlet of chemical cleaning pump is accurate with the chemical cleaning
The inlet communication of filter, the outlet of the chemical cleaning accurate filter and the backwash water inlet communication of ultrafiltration host, and
It is equipped with control valve on corresponding pipeline.
The ultra filtration unit 3 also adds air purge system 36, and the air purge system 36 includes air source 361 and air purge valve 362,
The air source is connected to by snorkel with the gas feed of ultrafiltration host, and air purge valve is equipped on snorkel.
The metal chelation resin loaded in the cation capture resin tower 23 is weak-acid cation-exchange resin, is used for
Remove the Ni in electroplating wastewater2+、Cu2+And Cr6+, and the exit of the cation capture resin tower 23 be useful for from
The ORP automatic controllers (judging whether resin is saturated by potential difference) of dynamic detection water outlet pH, the control of the ORP automatic controllers
End processed and the signal output end of the controller are electrically connected.
The retention aperture of the ultrafiltration membrane loaded in the ultrafiltration host 33 is 0.0012~0.05 μm.
The cation capture resin tower, ultrafiltration host and reverse osmosis host are two sets, and a set of normal use is a set of
It is spare.
A set of pH for the row's of waiting for plating water pH in control pipe is respectively configured at the first via and prefiltration liquid collecting vessel
Automatic control system, the pH automatic control systems include for detecting the pH automatic controllers of pH value, for acid solution to be added
First Automatic Dosing metering pump and the second Automatic Dosing metering pump for lye to be added, the detection of the pH automatic controllers
Electrode is contacted with the row's of waiting for plating water in pipe, the first signal of the signal output end of the detecting electrode and the pH automatic controllers
Input terminal is electrically connected, and the pH automatic controllers are equipped with the digital display screen for setup parameter, the signal of the pH automatic controllers
Output end is electric with the control terminal of the first Automatic Dosing metering pump, the control terminal of the second Automatic Dosing metering pump respectively
Even, the inlet of the first Automatic Dosing metering pump, the second Automatic Dosing metering pump inlet deposited respectively with acid solution
Storage tank, the connection of lye storage tank.
2 the present embodiment of embodiment is being suitably modified to embodiment 1：1 electroplating wastewater of pretreatment unit described in the present embodiment
(the capacity 5m of stock solution collection bucket 113) added downstream spill box 111 (capacity 3m3), filter plant 13 be changed to two it is suitable
(precision is 50 μm to bag filter even, and processing flow is 30m3/ h), and set and stir in electroplating wastewater stock solution collection bucket 11
Machine and liquid-level switch (LT) are mixed, liquid-level switch (LT) and pH meter are equipped in spill box；First delivery pump is one group, and
Conveying capacity is 30m3The variable-frequency delivery pump of/h；And electroplating wastewater stoste needs before squeezing into electroplating wastewater stock solution collection bucket 11
It is 9.5~11 that acid adding, which adjusts pH value,；
The cation capture resin tower 23 of cation resin exchange unit is two sets of heavy metal chelate resin tanks, heavy metal chela
Resin tank is fiberglass tank body, capacity 30m3The using and the reserved, and each heavy metal chelate resin tank is equipped with for introducing
The water inlet of pretreatment unit water outlet, the water outlet being connected to for the ultrafiltration raw water collection bucket 24 (or resin water producing tank) with downstream
Mouth, the upper discharge outlet for standard compliant electroplating wastewater to be discharged, the lower discharge outlet for standard compliant electroplating wastewater to be discharged,
The backwash mouth of a river for introducing backwash water, the acid ＆ alkali liquid import for introducing acid solution or lye, wherein upper discharge outlet, lower discharge outlet
It is connected to respectively by respective line and the first row pond 238 that discharges water；Wherein, water inlet, upper discharge outlet, the backwash mouth of a river, water outlet with
And it is respectively equipped with valve 232 on the first inlet valve 231, first on the connected pipeline of lower discharge outlet, instead into valve 233, first produces water
Valve 234 and first time valve 235, the connected pipeline of acid ＆ alkali liquid import are equipped with acid inlet valve 236 and alkali-feeding valve 237, collective effect
Control ph, and the first inlet valve, valve on first, instead into valve, the first production water valve, first time valve, acid inlet valve and into alkali
Signal output end of the control terminal of valve respectively with the controller is electrically connected, and realizes the automatic control to cation resin exchange unit
System；Ultrafiltration raw water collection bucket is equipped with liquid-level switch (LT), capacity 3m3；Second delivery pump is similarly one group, and defeated
It is 30m to send ability3The variable-frequency delivery pump of/h；The control terminal of second delivery pump and the signal output end of the controller are electrically connected；
33 bottom of ultrafiltration host is equipped with water inlet for being connected to first filter, for being connected to down with discharge pond
Discharge outlet and cleaning import for chemical cleaning, upper end are equipped with the water outlet being connected for the water inlet collecting pit with downstream units
Mouthful, the backwash import for be connected to backwash water tank, the scavenger circuit mouth for being connected to sour bucket alkali bucket, be used for and second row
Discharge water the upper outlet that pond 339 is connected to and the concentrated water drainage mouth for concentrated water to be discharged, water inlet, lower discharge outlet and cleaning inlet and outlet phase
Corresponding second inlet valve 331, second time valve 332 is respectively configured on pipeline even and cleans into valve 333, water outlet, backwash
On the pipeline that import, scavenger circuit mouthful, upper outlet are connected with concentrated water drainage mouth 3381 water valve 334, backwash are produced equipped with corresponding second
Valve 337 and concentrated water valve 338 on into valve 335, cleaning return valve 336, second, and clean inlet and outlet and acid, alkali case (i.e. acid
Cylinder, alkali cylinder) connection.
The water outlet of first backwash water tank 251 or the second backwash water tank 351 is divided into two, one of them directly with a huge sum of money
Belong to the connection of chelating resin tank, as resin backwash water A；Another converges rear and heavy metal chelating tree with chemical cleaning reagent reservoirs
Either ultrafiltration host connection constitutes resin pickling B or chemical cleaning system to fat tank；Sour bucket 252, alkali bucket 253 are by corresponding
Either ultrafiltration host is connected to the pickling a for resin, transition b or ultrafiltration with corresponding heavy metal chelate resin tank after pump
C is washed in change；If backwash water tank is the second backwash water tank, need to increase chemical cleaning reagent reservoirs, wherein chemical cleaning reagent stores up
Tank includes the sour cylinder 352 for storing HCl solution and the alkali cylinder 353 for storing lye (NaOH+NaClO mixed solutions)；Acid
Bucket 252 (storage HCl solutions), alkali bucket 253 (storage NaOH solution) after corresponding pump with corresponding heavy metal chelating tree
Fat tank is connected to, and the pickling a, transition b or ultrafiltration for resin wash c.
Water storage apparatus in equipment is made of PE materials.
3 the utility model patent whole system of embodiment includes：
1, cation resin exchange unit (two sets, the using and the reserved)
(1) metal chelation resin
Technical parameter：Heavy metal chelate resin (weak-acid cation-exchange resin)
Flow：30t/h
Single tank amount of resin：2000L
The resin height of bed：1000mm
Flow velocity：20BV/h
Service life：3~5 years
(2) heavy metal chelate resin tank
Technical parameter：Model：DR-4872
Quantity：2
Size：Φ1200mm x 1800mm
Material：FRP
(3) Acid-Base regenerating unit
A. water injecting pump is regenerated
Technical parameter：Model：CDLF32-30-2
Quantity：1
Flow：30m3/h
Lift：28m
Overcurrent material：SUS304
B. soda acid chemicals dosing plant
Technical parameter：PE batch boxes 2000L, 2
C. regenerated acid alkali pump
Technical parameter：Stainless steel, acid-alkali-corrosive-resisting
Ultra filtration unit (two sets, the using and the reserved)
(1) second booster pump
Technical parameter：Quantity：2
Flow：20m3/h
Lift：30m
Overcurrent material：SUS304
(2) cartridge filter
Technical parameter：Quantity：1 set
Specification：40 " × 10 cores
Flow：20m3/h
Container material quality：Stainless steel SUS304
Appearance：Matt (frosted)
Filter core material：Polypropylene
Filter core precision：5μm
It is equipped with：Oil-filled pressure gauge 1, air bleeding valve 1,5 μm of 7, micro-filtration cores
(3) ultrafiltration membrane
Technical parameter：Quantity：10
Specification：A*B*C, Φ 200x1630x1750
Material：PVDF (Kynoar)
Aperture：0.05μm
Monofilm area：47m2
Design membrane flux：35~85LMH
Filter core precision：5μm
It is equipped with：Oil-filled pressure gauge 1, air bleeding valve 1,5 μm of micro-filtration cores, 7 (4) back purge system backwash water pumps
Technical parameter：Quantity：1
Flow：32m3/h
Lift：28m
Overcurrent material：SUS304
(5) chemical cleaning system
A. chemical cleaning pump
Technical parameter：Quantity：1
Flow：16m3/h
Lift：30m
Overcurrent material：SUS304
B. chemical cleaning accurate filter
Technical parameter：Quantity：1 set
Specification：40 " × 7 cores
Container material quality：Stainless steel SUS304
Appearance：Matt (frosted)
Filter core material：Polypropylene
Filter core precision：5μm
It is equipped with：Oil-filled pressure gauge 1
Air bleeding valve 1
5 μm of 3, micro-filtration cores
C. chemical cleaning water tank
Technical parameter：Quantity：1
Specification：3m3
Material：PE
3, instrument and meter
(1) monitoring device
-- pipeline flowmeter
Pattern：Duct type
-- PH on-line detectors
Table main equipment size table
Equipment is taken up an area：In this system, main equipment is resin container and ultrafiltration apparatus, and total floor space is 22.33m2, wherein
Resin container takes up an area 6.12m2, ultrafiltration rack occupation of land 10.62m2。
A kind of electroplating wastewater recovery process described in the utility model of embodiment 3, includes the following steps：
1) the pending electroplating wastewater stoste for adjusting pH value is subjected to preliminary filtering, removed in electroplating wastewater stoste
It is collected after graininess suspended impurity, obtains treatment fluid A；Wherein preliminary filtering includes sand filtration and carbon filter, sand filtration
(30CMH)：For the granule foreigns such as suspended matter, colloid in trap water, to remove impurities in water (when draining pH value is alkalinity and
In the case of non-acid adding is adjusted, rejection effect is more preferable), according to disengaging water pressure judgement when equipment is run, when pressure difference is more than 1.5KG
Using manual backwashing；Carbon filters (30CMH)：Active carbon adsorption goes organic matter, colloid, microorganism etc. in water removal, mainly for
Meet the inflow requirement of subsequent ion adsorbent equipment；According to disengaging water pressure judgement when equipment is run, when pressure difference is more than 1.5KG
Using manual backwashing；Influent quality requirement：PH value：9.5~11, Ni2+Less than 1.5PPM；COD is less than 200PPM；Cu2+It is less than
1.5PPM；Cr2+Less than 0.1PPM；TGr:Less than 1PPM；2) treatment fluid A is cleaned by bag filter, obtains treatment fluid B；
The step mainly shields to follow-up resin, and 10 μm of particulate matter is more than in retention treatment fluid A；
3) treatment fluid B is passed through into heavy metal chelate resin, collects, obtains after the heavy metal ion in removal treatment fluid B
Obtain treatment fluid C；When equipment operates in the step standby a, nickel ion left in primary attachment water, undersaturated shape are opened using one
It is stably controlled in 0.2PPM or so under state；
4) whether detection process liquid C meets electroplating wastewater discharge standard, if meeting, adjusts its pH value and is directly arranged later
It puts；If not meeting discharge standard, need to be further processed；It adds hydrochloric acid to control pH value between 5.5-6, mainly
In order to meet the inflow requirement of subsequent ion adsorbent equipment；
5) the treatment fluid C for not meeting discharge standard is cleaned by bag filter, obtains treatment fluid D；
6) treatment fluid D is subjected to hyperfiltration treatment, removes macromolecular substances of its middle-molecular-weihydroxyethyl more than ultrafiltration membrane retention aperture,
It obtains treatment fluid E and meets the concentrated water A of discharge standard, wherein concentrated water A is directly discharged, and treatment fluid E is carried out in next step
Processing；The step equipment is opened one standby using one, sets automatic backwash according to the operation cumulative time when normal operation, ultrafiltration is
A kind of membrane process between micro-filtration and nanofiltration, the main aqueous solution size that removes is 0.0012~0.05 μm of macromolecular chemical combination
Object, high-molecular compound, colloid, bacterium etc.；After running a period of time, ultrafiltration membrane is needed to carry out backwash and chemical cleaning,
Quantitatively addition HCL, NaOH, NaCLO backwashes ultrafiltration membrane, prevents film by metal ion and Organic Material Blocking；
7) treatment fluid E is subjected to reverse-osmosis treated after corresponding booster pump and cartridge filter processing, simultaneously
Scale remover and fungicide is added, after treatment, the concentrated water B of acquisition enters wastewater collection pond, and water gauge is used in meeting for obtaining
Accurate purified water is directly connected with external water equipment, and extra purified water introduces spare in tap water collecting pit；In the step
Reverse-osmosis treated (RO) is various inorganic salts, organic matter and the microorganism in making a return journey water removal using reverse osmosis membrane under pressure
Deng to have the function that purify water；In the step：Cartridge filter mainly shields to film and high-pressure pump, retention
The particulate matter for being more than 1 μm that pre-treatment is brought；Antisludging agent can effectively prevent the generation of film in-tube fouling, extends membrane tube and uses the longevity
Life；Fungicide：Bacterium, algae, fungi, virus and other higher organisms in water are killed, prevents from entering RO formation biomembranes.
Content described in this specification embodiment is only enumerating for the way of realization conceived to utility model, this practicality is new
The protection domain of type is not construed as being only limitted to the concrete form that embodiment is stated, the scope of protection of the utility model is also wrapped
Include those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of electroplating wastewater reclaimer, it is characterised in that：Include for removing the particle suspensions in electroplating wastewater before
Processing unit, the cation resin exchange unit for removing the metal ion in electroplating wastewater, for retaining in electroplating wastewater
The ultra filtration unit of macromolecular, for reducing processing water conductivity reverse osmosis units and controller, the pretreatment unit
Water inlet is connected to extraneous pending electroplating wastewater discharge outlet, the water outlet and cation resin exchange of the pretreatment unit
The water inlet of unit is connected to, and the water outlet of the cation resin exchange unit is divided into two-way, and the first via is according to plating water quality standard
The water inlet of ultra filtration unit, the discharge outlet of ultra filtration unit and the water inlet pipeline connection of reverse osmosis units are accessed in discharge, the second road,
The concentrated water outlet of the reverse osmosis units introduces wastewater collection pond, and the regeneration water out of the reverse osmosis units is divided into two-way, the
Three tunnels directly with water equipment pipeline connection, the 4th tunnel and tap water collecting pit pipeline connection, pretreatment unit, resin cation
Corresponding control valve, the control of the control valve are configured on crosspoint, ultra filtration unit and the corresponding pipeline of reverse osmosis units
It holds the signal output end respectively with the controller to be electrically connected, realizes the control to each unit；
The pretreatment unit includes electroplating wastewater stock solution collection bucket, the first delivery pump, for removing in electroplating wastewater stoste
The filter element of particle suspensions and the prefiltration liquid collecting vessel that prefiltration liquid is electroplated for storing just processing, the electroplating wastewater
The water inlet of stock solution collection bucket is connected to as the water inlet of pretreatment unit with extraneous pending electroplating wastewater discharge outlet, described
The water inlet pipeline connection of the water outlet of electroplating wastewater stock solution collection bucket and first delivery pump, first delivery pump go out
The water inlet pipeline connection at the mouth of a river and the filter element, the water outlet of the water outlet of the filter element as pretreatment unit
With the water inlet pipeline connection of the cation resin exchange unit；The filter element includes that sand filtration apparatus and carbon filter are set
It is standby, wherein the water inlet end of the sand filtration apparatus is connected to as the water inlet of filter element with the water outlet pipeline of the first delivery pump,
The water outlet of the water inlet end pipeline connection of the water outlet of the sand filtration apparatus and carbon filter equipment, the carbon filter equipment was used as
Filter the water inlet pipeline connection of the water outlet and cation resin exchange unit of unit；
The cation resin exchange unit includes the second delivery pump, first filter, at least a set of cation capture resin tower
And for storing the ultrafiltration raw water collection bucket for removing metal ion water, water inlet and the filter element of second delivery pump
Water outlet pipeline connection, the water outlet of second delivery pump is connected to the water inlet of the first filter, described first
The inlet pipeline connection of the water outlet of filter and the cation capture resin tower is filled out in the cation capture resin tower
Fill the metal chelation resin for adsorbing the metal ion in electroplating wastewater；The water outlet of the cation capture resin tower and institute
The water inlet connection of ultrafiltration raw water collection bucket is stated, the water outlet of the ultrafiltration raw water collection bucket is as cation resin exchange unit
Water outlet be divided into two-way, wherein the first via is for discharge the plating water for meeting discharge standard, the ultrafiltration in the second tunnel access downstream
The water inlet of unit；
The ultra filtration unit includes the first booster pump, the second filter, at least a set of ultrafiltration host and reverse osmosis collecting pit, institute
The water inlet for the first booster pump stated is corresponding with second tunnel of ultrafiltration raw water collection bucket as the water inlet of ultra filtration unit
Water outlet pipeline is connected to；The water outlet of first booster pump is connected to the water inlet of second filter, second mistake
The water outlet of filter introduces the water inlet end of the ultrafiltration host, and ultrafiltration membrane is installed in the ultrafiltration host, the ultrafiltration host
Discharge outlet is equally divided into two-way, wherein the 5th tunnel meets the plating water of discharge standard, the 6th tunnel by respective line direct emission
Introduce reverse osmosis collecting pit；
The reverse osmosis units include the second booster pump, third filter, at least a set of reverse osmosis host and wastewater collection pond, institute
The import for stating the second booster pump is connected to the water outlet of the reverse osmosis collecting pit, and the outlet of second booster pump introduces third
The entrance of filter, the inlet communication of the outlet and the reverse osmosis host of the third filter, the reverse osmosis host
The concentrated water outlet of interior installation reverse osmosis membrane, the reverse osmosis host introduces wastewater collection pond, the recycled water of the reverse osmosis host
Outlet is divided into two-way, third road directly with water equipment pipeline connection, the 4th tunnel and tap water collecting pit pipeline connection.
2. electroplating wastewater reclaimer as described in claim 1, it is characterised in that：The cation resin exchange unit is added
A set of Acid-Base regenerating unit, the ultra filtration unit add a set of back purge system, are used for resin regeneration, transition and backwash；Institute
It includes the first backwash water tank, the sour bucket for storing acid solution and the alkali bucket for storing lye to state Acid-Base regenerating unit, described
The water inlet of backwash water tank is connected to external source, the water outlet of the first backwash water tank by regenerate accordingly water injecting pump with
And the backwash water inlet communication of respective line and the cation capture resin tower；The water outlet of the water outlet, alkali bucket of the acid bucket
Mouthful by the regeneration inlet communication of soda acid chemicals dosing plant and cation capture resin tower, realize to resin regeneration, transition and instead
It washes, the soda acid chemicals dosing plant includes corresponding regenerated acid alkali pump and corresponding delivery pipe, the import of the regenerated acid alkali pump
It is connected with the water outlet of the water outlet of corresponding sour bucket, alkali bucket, the outlet of regenerated acid alkali pump and cation capture resin tower are again
Raw inlet communication, and it is equipped with control valve on corresponding pipeline；
The back purge system is similar with the Acid-Base regenerating unit structure, regeneration water injecting pump is only changed to backwash water pump, together
Sample includes the second backwash water tank, the sour cylinder for storing acid solution and the alkali cylinder for storing lye, the second backwash water tank
Water inlet be connected to external source, and the water outlet of the second backwash water tank passes through corresponding backwash water pump and corresponding
The backwash water inlet communication of pipeline and the ultrafiltration host；The water outlet of the acid cylinder, the water outlet of alkali cylinder pass through soda acid dosing
The regeneration inlet communication of device and ultrafiltration host realizes the backwash to ultrafiltration membrane and chemical cleaning；The soda acid chemicals dosing plant
Including corresponding regenerated acid alkali pump and corresponding delivery pipe, the water outlet of the import of the regenerated acid alkali pump and corresponding sour cylinder
Mouth, the water outlet of alkali cylinder are connected, the outlet of regenerated acid alkali pump and the regeneration inlet communication of cation capture resin tower, and corresponding
Pipeline on be equipped with control valve.
3. electroplating wastewater reclaimer as described in claim 1, it is characterised in that：It is clear that the ultra filtration unit adds a set of chemistry
System is washed, the chemical cleaning of ultrafiltration membrane is used for；The chemical cleaning system includes chemical cleaning water tank, corresponding chemical cleaning
Pump, chemical cleaning accurate filter and corresponding delivery pipe, the import of the chemical cleaning pump and going out for chemical cleaning water tank
The mouth of a river is connected, the inlet communication of the outlet and the chemical cleaning accurate filter of chemical cleaning pump, and the chemical cleaning is accurate
The outlet of filter and the backwash water inlet communication of ultrafiltration host, and it is equipped with control valve on corresponding pipeline.
4. electroplating wastewater reclaimer as claimed in claim 3, it is characterised in that：The ultrafiltration host also adds air purge system
System, the air purge system includes air source and air purge valve, and the air source is connected to by snorkel with the gas feed of ultrafiltration host,
And air purge valve is equipped on snorkel.
5. electroplating wastewater reclaimer as claimed in claim 2, it is characterised in that：It is loaded in the cation capture resin tower
Metal chelation resin be weak-acid cation-exchange resin, for removing the Ni in electroplating wastewater2+、Cu2+And Cr6+, and
The ORP automatic controllers for being useful for detecting water outlet pH automatically are matched in the exit of the cation capture resin tower, and the ORP is automatic
The control terminal of controller and the signal output end of the controller are electrically connected.
6. electroplating wastewater reclaimer as claimed in claim 4, it is characterised in that：The ultrafiltration membrane loaded in the ultrafiltration host
Retention aperture be 0.0012~0.05 μm.
7. electroplating wastewater reclaimer as described in claim 1, it is characterised in that：The cation capture resin tower, ultrafiltration
Host and reverse osmosis host are two sets, and a set of normal use is a set of spare.
8. electroplating wastewater reclaimer as described in claim 1, it is characterised in that：The first via and prefiltration liquid
A set of pH automatic control systems for controlling the row of waiting for plating water pH are respectively configured at collecting vessel, the pH automatic control systems include
For detecting the pH automatic controllers of pH value, the first Automatic Dosing metering pump for acid solution to be added and for lye to be added
Second Automatic Dosing metering pump, the detecting electrode of the pH automatic controllers are contacted with the row's of waiting for plating water in pipe, the detection electricity
The signal output end of pole and the first signal input part of the pH automatic controllers are electrically connected, and the pH automatic controllers are equipped with and are used for
The digital display screen of setup parameter, the signal output ends of the pH automatic controllers respectively with the first Automatic Dosing metering pump
Control terminal, the control terminal of the second Automatic Dosing metering pump are electrically connected, the inlet of the first Automatic Dosing metering pump, described
The inlet of second Automatic Dosing metering pump is connected to acid solution storage tank, lye storage tank respectively.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827286A (en) * | 2017-11-30 | 2018-03-23 | 宁波中骏森驰汽车零部件股份有限公司 | A kind of electroplating wastewater recovery process and electroplating wastewater reclaimer |
| CN110342689A (en) * | 2019-08-13 | 2019-10-18 | 广东凯尔迪清洗技术有限公司 | A kind of waste water indirect regeneration applied to semiconductor packing process cleaning process |
| CN110451677A (en) * | 2018-12-26 | 2019-11-15 | 合肥恒力装备有限公司 | A kind of pickling lines rinsing waste-water treatment process |
| CN113526727A (en) * | 2021-07-21 | 2021-10-22 | 重庆华捷地热能开发有限公司 | Concentrated filling system of natural hot spring water |
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2017
- 2017-11-30 CN CN201721638657.6U patent/CN207748952U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107827286A (en) * | 2017-11-30 | 2018-03-23 | 宁波中骏森驰汽车零部件股份有限公司 | A kind of electroplating wastewater recovery process and electroplating wastewater reclaimer |
| CN110451677A (en) * | 2018-12-26 | 2019-11-15 | 合肥恒力装备有限公司 | A kind of pickling lines rinsing waste-water treatment process |
| CN110342689A (en) * | 2019-08-13 | 2019-10-18 | 广东凯尔迪清洗技术有限公司 | A kind of waste water indirect regeneration applied to semiconductor packing process cleaning process |
| CN113526727A (en) * | 2021-07-21 | 2021-10-22 | 重庆华捷地热能开发有限公司 | Concentrated filling system of natural hot spring water |
| CN113526727B (en) * | 2021-07-21 | 2022-12-27 | 重庆华捷地热能开发有限公司 | Concentrated filling system of natural hot spring water |
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