CN102358643B - Apparatus for recovering and reusing electroplating rinse water, and method thereof - Google Patents
Apparatus for recovering and reusing electroplating rinse water, and method thereof Download PDFInfo
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- CN102358643B CN102358643B CN 201110167084 CN201110167084A CN102358643B CN 102358643 B CN102358643 B CN 102358643B CN 201110167084 CN201110167084 CN 201110167084 CN 201110167084 A CN201110167084 A CN 201110167084A CN 102358643 B CN102358643 B CN 102358643B
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Abstract
The invention relates to an apparatus for recovering and reusing electroplating rinse water, and a method thereof, and belongs to the water treatment equipment. The apparatus mainly comprises a rinse water recovery tank, an active carbon tower, a relay water tank, a precision filter, a cation resin tower, an anion resin tower, a recycling water tank. The active carbon tower of the apparatus comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise an active carbon tower A and an active carbon tower B. The precision filter comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise a precision filter A and a precision filter B. The cation resin tower comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise a cation resin tower A and a cation resin tower. The anion resin tower comprises two sets of apparatuses, wherein the two sets of the apparatuses comprise an anion resin tower A and an anion resin tower B. The apparatuses of the present invention form an A-line system apparatus and a B-line system apparatus according to the requirements of the process, wherein the A-line system apparatus and the B-line system apparatus are provided for recovering and reusing the electroplating rinse water; according to the requirements of the process, the A-line system apparatus operates or the B-line system apparatus operates. With the present invention, the purpose of the electroplating rinse water recovery and reuse is achieved, the water recovery rate is improved and the cost of the electroplating wastewater treatment is reduced.
Description
Technical field
The present invention relates to the water treating equipment class, particularly a kind of device and method of electroplating rinse water recycling.
Background technology
As everyone knows, the electroplating industry rinsing water yield is big, and the heavy metal ion content height is big to human body harm.At present, electroplating rinse water directly discharges after adopting reverse osmosis process to handle the method for waste water more, and shortcoming is to cause water resource waste.And reverse osmosis process reclaims electroplating rinse water, and the rate of recovery is lower, simultaneously owing to the high reason of (chemical oxygen demand) COD value in the rinse water, is faced with reverse osmosis membrane short problem actual service life.
Summary of the invention
The object of the present invention is to provide a kind of device and method of electroplating rinse water recycling, realize the raising of electroplating rinse water recycling rate, it is big to solve present electroplate rinsing water loss, and the reverse osmosis process rate of recovery is low, problems such as reverse osmosis membrane weak point in work-ing life.
A kind of system and device of electroplating rinse water recycling is made up of following array apparatus: the cationic resin cation (R.C.) tower in the impurity in the rinse water accumulator tank of collection electroplating rinse water, the filtration rinse water and the reduction waste water in the relaying tank of the activated carbon tower of COD value (chemical oxygen demand (COD)), relay storage electroplating rinse water, accurate filter, the removal rinse water, resin anion(R.A) tower, the reuse tank of recycling and the back washing tower of back washing process of the negatively charged ion in the removal rinse water.
The activated carbon tower of said system device is made of two covering devices of the first activated carbon tower A and the second activated carbon tower B, accurate filter is made of the first accurate filter A and the second accurate filter B, two covering devices, the resin cation (R.C.) tower is made of resin cation (R.C.) tower A and resin cation (R.C.) tower B two covering devices, the resin anion(R.A) tower is made of the first resin anion(R.A) tower A and the second resin anion(R.A) tower B, two covering devices, and form by the rinse water accumulator tank according to the needs of technology, the first activated carbon tower A, the relaying tank, the first accurate filter A, the first resin cation (R.C.) tower A, the A wire system device of the electroplating rinse water recycling that the first resin anion(R.A) tower A and reuse tank constitute, and rinse water accumulator tank, the second activated carbon tower B, the relaying tank, the second accurate filter B, the second resin cation (R.C.) tower B, the B wire system device of another electroplating rinse water recycling that the second resin anion(R.A) tower B and reuse tank constitute, according to arts demand, or the operation of A wire system device, B wire system device is standby; Or the operation of B wire system device, A wire system device is standby.Wherein:
Rinse water accumulator tank, relaying tank and reuse tank are the metal construction of the inner wall of tower fluorinated ethylene propylene material line with rubber that is lined with acid and alkali-resistance or the tank of selecting for use stainless steel to be made, each above-mentioned tank is connected with the miscellaneous equipment of system and device by pipeline, be transported in each device of system by the industrial pump that satisfies manufacturing technique requirent, form the cyclic processing device system of rinse water.
Accurate filter is used for filtering rinse water suspended substance and impurity.
The activated carbon tower is used for filtering the impurity of rinse water and reduces COD value (chemical oxygen demand (COD)) in the waste water.
Up and down double-deck first column plate is installed in the resin cation (R.C.) Tata body of resin cation (R.C.) tower, is useful on the open holes that the first filter cap is installed on first column plate, the filter cap with micro-pore is installed on the open holes on first column plate.
The resin cation (R.C.) Tata body top of resin cation (R.C.) tower is provided with the top intake-outlet with various cross currents, and its first washing water inlet pipe, first medicine are annotated pipe, first rising pipe, are connected with tower body top intake-outlet; The resin cation (R.C.) Tata body top of resin cation (R.C.) tower also is provided with the first upper strata resin and imports and exports, first lower-layer resin is imported and exported with these first upper strata resin import and export and is connected, resin cation (R.C.) is imported and exported by first lower-layer resin and is entered in the resin cation (R.C.) Tata body from the first upper strata resin, be deposited on the first filter cap of first column plate, and determine its ulking thickness according to the needs of technology.
The bottom of resin cation (R.C.) Tata body is provided with the first bottom intake-outlet, and first water inlet pipe, back washing water inlet pipe, the first regeneration waste liquid rising pipe pass through the intracavity inter-connection of the first bottom intake-outlet and tower body, satisfies the needs of rinse water circulation.
Earlier the mistake first filter cap with micro-pore is installed on first column plate during installation, again resin cation (R.C.) is imported and exported by first lower-layer resin and inserted in the tower from the first upper strata resin import and export on top, up to being piled into the needed thickness of technology.Import and export by the first upper strata resin equally when changing resin cation (R.C.) and take out.
In the resin anion(R.A) Tata body of resin anion(R.A) tower second column plate is installed, and three layers of column plate pressing upper strata column plate, middle level column plate and lower floor's column plate are arranged, be shaped on each layer second column plate for the open holes that the second filter cap is installed, the second filter cap with micro-pore is installed on the open holes on second column plate, at middle level column plate and the resin anion(R.A) of the required thickness of build up process above lower floor's column plate.Another top intake-outlet that the top of resin anion(R.A) Tata body is provided with second washing water inlet pipe, second medicine and annotates pipe, produces water-circulating pipe, reuse water second rising pipe is connected, keep supplying that layer resin packed into or the second upper strata resin that takes out usefulness is imported and exported, pack into or second lower-layer resin of taking out usefulness is imported and exported and pass in and out with the second upper strata resin is imported and exported and the import and export of second lower-layer resin are connected resin and to manage for lower-layer resin.
The bottom of resin anion(R.A) Tata body is provided with the second bottom intake-outlet that is connected with second water inlet pipe, upper strata back washing water inlet pipe, lower floor's back washing water inlet pipe and the second regeneration waste liquid rising pipe.
The back washing rising pipe that the back washing Tata body top of back washing tower is provided with tower body top intake-outlet and is communicated with it; Back washing Tata body bottom is provided with tower body bottom intake-outlet, and coupled another logical resin turnover pipe, also is provided with resin in the bottom of back washing Tata body and returns the tower water inlet pipe, and return another resin import and export and pipe core that the tower water inlet pipe is connected with resin.
Inner wall of tower was lined with the fluorinated ethylene propylene material line with rubber of acid and alkali-resistance when resin cation (R.C.) tower, resin anion(R.A) tower and back washing tower were made.
During operation, rinse water enter the activated carbon tower from the rinse water accumulator tank and tentatively filter, water leg the rinse water that flow out from the activated carbon tower enter, the rinse water that promoted through pump by middle water leg enter the accurate filter filtration, entered in the tower body by first water inlet pipe of the resin cation (R.C.) tower intake-outlet via the tower body bottom again, through with tower body in discharge through first rising pipe from tower body top water outlet after the resin cation (R.C.) reaction, pass through second water inlet pipe of next rinse water resin anion(R.A) tower body bottom again, enter in the tower body from lower water inlet at last, discharge from tower body top intake-outlet and second rising pipe with resin anion(R.A) reaction back in the tower body.
A kind of processing method of electroplating rinse water recycling:
1, electroplating rinse water is collected by the rinse water accumulator tank, promotes by pump then and enters the activated carbon tower, is intended to filter the impurity in the rinse water and reduces COD value (chemical oxygen demand (COD)) in the waste water; The water outlet of activated carbon tower enters the relaying tank, filters by the pump lifting through accurate filter and enters the resin cation (R.C.) tower, removes the positively charged ion of rinse water in the resin cation (R.C.) tower, as Cu
2+, Ni
2+, Zn
2+
2, the resin cation (R.C.) tower adopts individual layer floating bed technology, and when namely normally producing water, waste water enters from the tower bottom, flows out from tower top, and resin cation (R.C.) is quick condition in tower under the waste water buoyancy function.With the bed technology ratio, this method water production rate is big, and therefore back washing resin during resin regeneration saves the water yield, reclamation rate height at every turn.
The principles of chemistry of resin cation (R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is resin cation (R.C.).
The principles of chemistry of resin cation (R.C.) regeneration: H
++ R-M---R-H+M
+
3, waste water enters the resin anion(R.A) tower after the resin cation (R.C.) tower comes out, and removes the negatively charged ion in the rinse water in the resin anion(R.A) tower.The resin anion(R.A) tower adopts double-deck floating bed technology, namely divides two portions up and down in the tower.Two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion, as SO
4 2+, Cl
-, (Cr
2O
4)
2-The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, as HCO
3 -The resin anion(R.A) tower goes out water conductivity less than 20 μ s/cm.
The water of native system output is stored in the reuse tank, and power supply plating rinsing station is reused.
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is resin anion(R.A).
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---2R-OH+CrO
4 2-
4, in the native system, the every product water of activated carbon adsorption tower 100 hours, back washing once, the water after the back washing enters the sewage plant Waste Water Treatment and handles the back discharging.
5, when the resin anion(R.A) tower product water conductivity that adopts A wire system device is higher than 20 μ s/cm, then enables standby B wire system device and produce water (vice versa), purpose is to be to realize the production line continuous water supply.
6, resin tower produces when water conductivity is higher than 20 μ s/cm and illustrates that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower.Need carry out manipulation of regeneration this moment to resin.The resin cation (R.C.) tower uses 10%HCl to regenerate, and namely by first medicine notes pipe and resin cation (R.C.) Tata body top intake-outlet 10%HCl is joined in the resin cation (R.C.) Tata body, uses H
+The metallic cation of resin absorption is exchanged, make resin cation (R.C.) regain exchange capacity; The resin anion(R.A) tower uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off, make negatively charged ion regain exchange capacity, use for once circulating to switch down as redundant system the regeneration back.The method of its resin anion(R.A) tower dosing and concrete operations are to annotate pipe by second medicine from another top intake-outlet of resin anion(R.A) Tata body 5%NaOH to be joined in the resin anion(R.A) Tata body, and other is with resin cation (R.C.) tower operating method.
7, the zwitterion resin tower need separate back washing during back washing, during the back washing of resin cation (R.C.) tower, back washing water enters in the tower body from the back washing water inlet pipe of tower body bottom, back washing water outlet and resin are discharged from the first upper strata resin turnover pipe of tower body upper side, entered in the back washing tower by first lower-layer resin turnover pipe, back washing water, impurity and broken resin are discharged from the back washing water outlet on back washing tower top, return the tower water when back washing finishes and return the tower water inlet pipe from resin and enter via another resin, by pipe core resin by another resin turnover pipe refunds resin cation (R.C.) tower.Be divided into two towers back washing respectively up and down during the back washing of resin anion(R.A) tower, in the back washing during tower back washing water enter in the tower from the upper strata back washing water inlet pipe of tower bottom, back washing water outlet and resin are imported and exported from first lower-layer resin of tower body upper side and are discharged, entered in the back washing tower by another resin turnover pipe, back washing water, impurity and broken resin are discharged from the back washing rising pipe on back washing tower top, return the tower water when back washing finishes and return the tower water inlet pipe from resin and enter, by pipe core resin by another resin turnover pipe refunds resin anion(R.A) tower upper strata; Under the back washing during tower back washing water enter in the tower from lower floor's back washing water inlet pipe of tower bottom, back washing water outlet and resin are imported and exported 561 from first lower-layer resin of tower side and are discharged, entered in the back washing tower by another resin turnover pipe, back washing water, impurity and broken resin are discharged from the back washing rising pipe on back washing tower top, return the tower water when back washing finishes and return the tower water inlet pipe from resin and enter, by pipe core resin by another resin turnover pipe refunds resin anion(R.A) tower lower floor.
8, resin tower multiparity water tower, two process circulations of regeneration needed resin in the yin, yang resin tower is transplanted on back washing in the resin back washing tower respectively after 60 days, and purpose is resin chip and foreign material in the flushing resin tower.
The invention has the advantages that: realize the recovery and reuse of electroplating rinse water, improved the rate of recovery of water, saved water resources, reduced the electroplating wastewater processing cost simultaneously, practical.
Description of drawings
Fig. 1 is process flow sheet of the present invention;
Fig. 2 is resin cation (R.C.) tower structure synoptic diagram of the present invention;
Fig. 3 is resin anion(R.A) tower structure synoptic diagram of the present invention;
Fig. 4 is resin back washing tower structure synoptic diagram of the present invention.
Sequence number implication in the accompanying drawing 1: 1. rinse water accumulator tank, 2. activated carbon tower (the 2A. first activated carbon tower, the 2B. second activated carbon tower), 3. relaying tank, 4. accurate filter (4A. first accurate filter and 4B. second accurate filter), 5. resin cation (R.C.) tower (the 5A. first resin cation (R.C.) tower and the 5B. second resin cation (R.C.) tower), 6. resin anion(R.A) tower (the 6A first resin anion(R.A) tower and the 6B. second resin anion(R.A) tower), 7. reuse tank;
Sequence number implication in the accompanying drawing 2: 5. resin cation (R.C.) tower, 50. resin cation (R.C.) Tata bodies, 51. first column plates, 52. first filter caps, 53. resin cation (R.C.)s, 54. first bottom intake-outlets, 541. first water inlet pipes, 542. back washing water inlet pipes, 543. first regeneration waste liquid rising pipes, 55. top intake-outlets, 551. first washing water inlet pipes, 552. first medicines are annotated pipe, 553. first rising pipes, 56. first upper strata resins import and export, the import and export of 561. first lower-layer resin;
Sequence number implication in the accompanying drawing 3: 6. resin anion(R.A) tower, 60. resin anion(R.A) Tata body, 61. second column plate, 62. the second filter cap, 63. resin anion(R.A), 64. the second bottom intake-outlet, 641. second water inlet pipe, 642. upper strata back washing water inlet pipe, 643. lower floor's back washing water inlet pipe, 644. the second regeneration waste liquid rising pipe, 65. another top intake-outlet, 651. the second washing water inlet pipe, 652. second medicine is annotated pipe, 653. resin turnover pipe, 654. product water-circulating pipe, 655. second rising pipe, 66. the second upper strata resin is imported and exported, 67. second lower-layer resin is imported and exported.
Sequence number implication in the accompanying drawing 4: 8. back washing tower, 80. back washing Tata bodies, 81. pipe cores, 82. another resin turnover pipes, 83. another back washing rising pipes, 84. resins return tower water inlet pipe, 85. tower body top intake-outlets, 86. body bottom intake-outlets, 87. another resins import and export.
Embodiment
To shown in the accompanying drawing 4, the system and device of electroplating rinse water recycling is made up of following array apparatus as accompanying drawing 1: the cationic resin cation (R.C.) tower 5 in the impurity in the rinse water accumulator tank 1 of collection electroplating rinse water, the filtration rinse water and the reduction waste water in the relaying tank 3 of the activated carbon tower 2 of COD value (chemical oxygen demand (COD)), relay storage electroplating rinse water, accurate filter 4, the removal rinse water, resin anion(R.A) tower 6, the reuse tank 7 of recycling and the back washing tower 8 of back washing process of the negatively charged ion in the removal rinse water.
The activated carbon tower 2 of said system device is made of two covering devices of the first activated carbon tower 2A and the second activated carbon tower 2B, accurate filter 4 is made of the first accurate filter 4A and the second accurate filter 4B, two covering devices, resin cation (R.C.) tower 5 is made of the first resin cation (R.C.) tower 5A and the second resin cation (R.C.) tower 5B, two covering devices, resin anion(R.A) tower 6 is made of the first resin anion(R.A) tower 6A and the second resin anion(R.A) tower 6B, two covering devices, and form by rinse water accumulator tank 1 according to the needs of technology, the first activated carbon tower 2A, relaying tank 3, the first accurate filter 4A, the first resin cation (R.C.) tower 5A, the A wire system device of the electroplating rinse water recycling that the first resin anion(R.A) tower 6A and reuse tank 7 constitute, and rinse water accumulator tank 1, activated carbon tower 2B, relaying tank 3, the second accurate filter 4B, the second resin cation (R.C.) tower 5B, the B wire system device of another electroplating rinse water recycling that the second resin anion(R.A) tower 6B and reuse tank 7 constitute, according to arts demand, or the operation of A wire system device, B wire system device is standby; Or the operation of B wire system device, A wire system device is standby.Wherein:
Rinse water accumulator tank 1, middle water leg 3 and reuse tank 7 are lined with the metal construction of fluorinated ethylene propylene material line with rubber of acid and alkali-resistance or the tank of selecting for use stainless steel to be made for inner wall of tower, each above-mentioned tank is connected with the miscellaneous equipment of system and device by pipeline, be transported in each device of system by the industrial pump that satisfies manufacturing technique requirent, form the cyclic processing device system of rinse water.
The accurate filter that is used for filtration rinse water suspended substance and impurity is the outsourcing multipurpose plant.
The activated carbon tower is used for filtering the impurity of rinse water and reducing COD value (chemical oxygen demand (COD)) in the waste water, is outsourcing device.
As shown in Figure 2, double-deck first column plate 51 up and down is installed in the resin cation (R.C.) Tata body 50 of resin cation (R.C.) tower 5, be shaped on this column plate 51 for the open holes that the first filter cap 52 is installed, the mistake first filter cap with micro-pore is installed on the open holes on the column plate.
Resin cation (R.C.) Tata body 50 tops of resin cation (R.C.) tower 5 are provided with the top intake-outlet 55 with various cross currents, and its first washing water inlet pipe 551, first medicine are annotated pipe 552, first rising pipe 553, are connected with tower body top intake-outlet 55; Resin cation (R.C.) Tata body 50 tops of resin cation (R.C.) tower 5 also are provided with the first upper strata resin and import and export 56, first lower-layer resin import and export 561 are imported and exported 56 with this first upper strata resin and are connected, resin cation (R.C.) 53 is imported and exported 56 by first lower-layer resin import and export 561 from the first upper strata resin and is entered in the resin cation (R.C.) Tata body 50, be deposited on the first filter cap 52 of first column plate 51, and determine its ulking thickness according to the needs of technology;
The bottom of resin cation (R.C.) Tata body 50 is provided with the first bottom intake-outlet 54, first water inlet pipe 541, back washing water inlet pipe 542, the first regeneration waste liquid rising pipe 543 satisfy the needs of rinse water circulation by the intracavity inter-connection of the first bottom intake-outlet 54 with resin cation (R.C.) Tata body 50.
Earlier the first filter cap 52 with micro-pore is installed on first column plate 51 during installation, again resin cation (R.C.) 53 is imported and exported 56 by the first upper strata resin on the import and export 561 of first lower-layer resin and top and insert in the tower, up to being piled into the needed thickness of technology.Importing and exporting 56 by the first upper strata resin equally when changing resin cation (R.C.) 53 takes out.
As shown in Figure 3, in the resin anion(R.A) Tata body 60 of resin anion(R.A) tower 6 second column plate 61 is installed, and three layers of column plate pressing upper strata column plate, middle level column plate and lower floor's column plate are arranged, be shaped on each layer second column plate 61 for the open holes that the second filter cap 62 is installed, second filter cap 62 cloth with micro-pore are installed on second column plate 61, at the middle level column plate be covered with the resin anion(R.A) 63 of the required thickness of technology above lower floor's column plate.Another top intake-outlet 65 that the top of resin anion(R.A) Tata body 60 is provided with second washing water inlet pipe 651, second medicine and annotates pipe 652, produces water-circulating pipe 654, second rising pipe 655 is connected, keep supplying that layer resin packed into or the tower body second upper strata resin that takes out usefulness imports and exports 66, for lower-layer resin pack into or the tower body resin that takes out usefulness import and export 67 and the resin that is connected with second upper strata resin import and export 66 and second lower floor 67 pass in and out and manage 653.
The bottom of resin anion(R.A) Tata body 60 is provided with the second bottom intake-outlet 64 that is connected with second water inlet pipe 641, upper strata back washing water inlet pipe 642, lower floor's back washing water inlet pipe 643 and the second regeneration waste liquid rising pipe 644.
As shown in Figure 4, back washing Tata body 80 tops of the back washing tower 8 back washing rising pipe 83 that is provided with tower body top intake-outlet 85 and is communicated with it; Back washing Tata body 80 bottoms are provided with tower body bottom intake-outlet 86, and coupled another logical resin turnover pipe 82, also be provided with resin at the sidepiece of back washing Tata body 80 and return tower water inlet pipe 84, and return another resin that tower water inlet pipe 84 is connected with resin and import and export 87 and pipe core 81.
Inner wall of tower was lined with the fluorinated ethylene propylene material line with rubber of acid and alkali-resistance when resin cation (R.C.) tower 5, resin anion(R.A) tower 6 and back washing tower 8 were made.
During operation, rinse water enter activated carbon tower 2 from rinse water accumulator tank 1 and tentatively filter, water leg 3 rinse water that flow out from the activated carbon tower enter, the rinse water that promoted through pump by middle water leg 3 enter accurate filter 4 filtrations, entered in the resin cation (R.C.) Tata body 50 by first water inlet pipe 541 of the resin cation (R.C.) tower intake-outlet 54 via resin cation (R.C.) Tata body 50 bottoms again, through with resin cation (R.C.) Tata body 50 in resin cation (R.C.) 53 reaction back from resin cation (R.C.) Tata body 50 top water outlets 55 through 553 discharges of first rising pipe, pass through second water inlet pipe 641 of next rinse water resin anion(R.A) Tata body 60 bottoms again, enter in the resin anion(R.A) Tata body 60 from lower water inlet 64, discharge from resin anion(R.A) Tata body 60 another top intake-outlets 65 and second rising pipe 655 with the 63 reaction backs of resin anion(R.A) in the resin anion(R.A) Tata body 60.
A kind of processing method of electroplating rinse water recycling:
1, electroplating rinse water is collected by rinse water accumulator tank 1, promotes by pump then and enters activated carbon tower 2, is intended to filter the impurity in the rinse water and reduces COD value (chemical oxygen demand (COD)) in the waste water; 2 water outlets of activated carbon tower enter relaying tank 3, filter by the pump lifting through accurate filter and enter resin cation (R.C.) tower 5, remove the positively charged ion of rinse water in the resin cation (R.C.) tower, as Cu
2+, Ni
2+, Zn
2+
2, the resin cation (R.C.) tower adopts individual layer floating bed technology, and when namely normally producing water, waste water enters from the tower bottom, flows out from tower top, and resin cation (R.C.) 53 is quick condition in tower under the waste water buoyancy function.
The principles of chemistry of resin cation (R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is resin cation (R.C.).
The principles of chemistry of resin cation (R.C.) regeneration: H
++ R-M---R-H+M
+
3, waste water enters resin anion(R.A) tower 6 after resin cation (R.C.) tower 5 comes out, and removes the negatively charged ion in the rinse water in resin anion(R.A) tower 6.Resin anion(R.A) tower 6 adopts double-deck floating bed technology, namely divides two portions up and down in the tower.Two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion, as SO
4 2+, Cl
-, (Cr
2O
4)
2-The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, as HCO
3 -The resin anion(R.A) tower goes out water conductivity less than 20 μ s/cm.
The water of native system output is stored in the reuse tank 7, and power supply plating rinsing station is reused.
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is resin anion(R.A).
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---2R-OH+CrO
4 2-
4, in the native system, activated carbon adsorption tower 2 every product water 100 hours, back washing once, the back washing water that produces water enters Waste Water Treatment and handles.
5, when the resin anion(R.A) tower product water conductivity that adopts A wire system device is higher than 20 μ s/cm, then enables standby B wire system device and produce water (vice versa), purpose is to be to realize the production line continuous water supply.
6, resin tower produces when water conductivity is higher than 20 μ s/cm and illustrates that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower.Need carry out manipulation of regeneration this moment to resin.Resin cation (R.C.) tower 5 uses 10%HCl to regenerate, and namely by first medicine notes pipe 552 and resin cation (R.C.) Tata body 50 top intake-outlets 55 10%HCl is joined in the resin cation (R.C.) Tata body 50, uses H
+The metallic cation of resin absorption is exchanged, make resin cation (R.C.) regain exchange capacity; Resin anion(R.A) tower 6 uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off, make negatively charged ion regain exchange capacity, this wire system resin tower regeneration back is as stand-by still.The method of its resin anion(R.A) tower 6 dosings and concrete operations are to annotate pipe 652 by second medicine from resin anion(R.A) Tata body 60 another top intake-outlets 65 5%NaOH to be joined in the resin anion(R.A) Tata body 60.
7, the zwitterion resin tower need separate back washing during back washing, during the back washing of resin cation (R.C.) tower, back washing water enters in the tower body from the first bottom intake-outlet 54 through the back washing water inlet pipe 542 of resin cation (R.C.) Tata body 50 bottoms, back washing water outlet and resin are imported and exported 56 from the first upper strata resin of tower body upper side and are discharged, importing and exporting (561) by first lower-layer resin enters in the back washing tower shown in Figure 4, back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower top, return the tower water when back washing finishes and return tower water inlet pipe 84 from resin and import and export 87 via another resin and enter, by pipe core 81 resin is managed 82 refunds resin cation (R.C.) towers by another resin turnover.Be divided into two towers back washing respectively up and down during the back washing of resin anion(R.A) tower, in the back washing during tower back washing water enter in the tower from the upper strata back washing water inlet pipe 642 of tower bottom, back washing water outlet and resin are imported and exported 561 from first lower-layer resin of tower body upper side and are discharged, entered in the back washing tower shown in Figure 4 by another resin turnover pipe 82, back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower top, return the tower water when back washing finishes and return tower water inlet pipe 84 from resin and enter, by pipe core 81 resin by another resin turnover pipe 82 refunds resin anion(R.A) tower upper stratas; Under the back washing during tower back washing water enter in the tower from lower floor's back washing water inlet pipe 643 of tower bottom, back washing water outlet and resin are imported and exported 561 from first lower-layer resin of tower side and are discharged, entered in the back washing tower shown in Figure 4 by another resin turnover pipe 82, back washing water, impurity and broken resin are discharged from the back washing rising pipe 83 on back washing tower 8 tops, return the tower water when back washing finishes and return tower water inlet pipe 84 from resin and enter, by pipe core 81 resin by another resin turnover pipe 82 refunds resin anion(R.A) towers 6 lower floors.
8, resin tower produced water tower, two process circulations of regeneration after 60 days, needed resin in the yin, yang resin tower is transplanted on back washing in the resin back washing tower 8 respectively, and purpose is resin chip and foreign material in the flushing resin tower.
Claims (1)
1. the device of an electroplating rinse water recycling, comprise: the rinse water accumulator tank (1) of collecting electroplating rinse water, filter impurity and the activated carbon tower (2) that reduces COD value in the waste water in the rinse water, the relaying tank (3) of relay storage electroplating rinse water, accurate filter (4), remove the cationic resin cation (R.C.) tower (5) in the rinse water, remove the resin anion(R.A) tower (6) of the negatively charged ion in the rinse water, the reuse tank (7) of recycling and the back washing tower (8) of back washing process, the activated carbon tower (2) of said system device is made of two covering devices of the first activated carbon tower (2A) and the second activated carbon tower (2B), accurate filter (4) is made of first accurate filter (4A) and second accurate filter (4B), two covering devices, and resin cation (R.C.) tower (5) is made of the first resin cation (R.C.) tower (5A) and the second resin cation (R.C.) tower (5B), two covering devices; Resin anion(R.A) tower (6) is made of the first resin anion(R.A) tower (6A) and the second resin anion(R.A) tower (6B), two covering devices, and form by rinse water accumulator tank (1) according to the needs of technology, the first activated carbon tower (2A), relaying tank (3), first accurate filter (4A), the first resin cation (R.C.) tower (5A), the A wire system device of the electroplating rinse water recycling that the first resin anion(R.A) tower (6A) and reuse tank (7) constitute, and rinse water accumulator tank (1), the second activated carbon tower (2B), relaying tank (3), second accurate filter (4B), the second resin cation (R.C.) tower (5B), the B wire system device of another electroplating rinse water recycling that the second resin anion(R.A) tower (6B) and reuse tank (7) constitute, according to arts demand, or the operation of A wire system device, B wire system device is standby; Or the operation of B wire system device, A wire system device is standby;
Double-deck first column plate (51) up and down is installed in the resin cation (R.C.) Tata body (50) of resin cation (R.C.) tower (5), be shaped on this first column plate (51) for the open holes that the first filter cap (52) is installed, the first filter cap (52) with micro-pore is covered with on first column plate (51);
Resin cation (R.C.) Tata body (50) top of resin cation (R.C.) tower (5) is provided with the top intake-outlet (55) with various cross currents, and its first washing water inlet pipe (551), first medicine are annotated pipe (552), first rising pipe (553), are connected with tower body top intake-outlet (55); Resin cation (R.C.) Tata body (50) top of resin cation (R.C.) tower (5) also is provided with the first upper strata resin and imports and exports (56), first lower-layer resin turnover pipe (561) is imported and exported (56) with this first upper strata resin and is connected, resin cation (R.C.) (53) is imported and exported (56) by first lower-layer resin turnover pipe (561) and the first upper strata resin and is entered in the tower body, be deposited on the first filter cap (52) of first column plate (51), and determine its ulking thickness according to the needs of technology;
The bottom of resin cation (R.C.) Tata body (50) is provided with the first bottom intake-outlet (54), and first water inlet pipe (541), back washing water inlet pipe (542), the first regeneration waste liquid rising pipe (543) are by the intracavity inter-connection of the first bottom intake-outlet (54) with resin cation (R.C.) Tata body (50);
In the resin anion(R.A) Tata body (60) of resin anion(R.A) tower (6) second column plate (61) is installed, and by the upper strata column plate, three layers of column plate of middle level column plate and lower floor's column plate are arranged, be shaped on each layer second column plate (61) for the open holes that the second filter cap (62) is installed, the second filter cap (62) with micro-pore is covered with on second column plate (61), at the middle level column plate be covered with the resin anion(R.A) (63) of the required thickness of technology above lower floor's column plate, the top of resin anion(R.A) Tata body (60) is provided with and the second washing water inlet pipe (651), second medicine is annotated pipe (652), produce water-circulating pipe (654), another top intake-outlet (65) that second rising pipe (655) is connected, keep supplying the second upper strata resin import and export (66) that layer resin packed into or taken out usefulness, pack into or second lower-layer resin of taking out usefulness is imported and exported (67) and imported and exported resin that (66) and second lower-layer resin import and export (67) are connected with the second upper strata resin and passes in and out and manage (653) for lower-layer resin;
The bottom of resin anion(R.A) Tata body (60) is provided with the tower body bottom water inlet pipe and water outlet pipe (64) that is connected with second water inlet pipe (641), upper strata back washing water inlet pipe (642), lower floor's back washing water inlet pipe (643) and the second regeneration waste liquid rising pipe (644);
The back washing rising pipe (83) that back washing Tata body (80) top of back washing tower (8) is provided with tower body top intake-outlet (85) and is communicated with it; Back washing Tata body (80) bottom is provided with tower body bottom intake-outlet (86), and coupled logical resin turnover pipe (82), also be provided with resin at the sidepiece of back washing Tata body (80) and return tower water inlet pipe (84), and return another resin that tower water inlet pipe (84) is connected with resin and import and export (87) and pipe core (81);
Inner wall of tower was lined with the fluorinated ethylene propylene material line with rubber of acid and alkali-resistance when resin cation (R.C.) tower (5), resin anion(R.A) tower (6) and back washing tower (8) were made, and it is characterized in that the method for this electroplating rinse water recycling is:
A, electroplating rinse water are collected by rinse water accumulator tank (1), promote by pump then and enter activated carbon tower (2), activated carbon tower (2) water outlet enters relaying tank (3), enter resin cation (R.C.) tower (5) through the accurate filter filtration by the pump lifting, in the resin cation (R.C.) tower, remove the positively charged ion of rinse water;
B, resin cation (R.C.) tower adopt individual layer floating bed technology, and when namely normally producing water, waste water enters from the tower bottom, flow out from tower top, and resin cation (R.C.) under the waste water buoyancy function (53) is quick condition in tower;
The principles of chemistry of resin cation (R.C.) absorption: M
++ R-H---R-M+H
+, wherein: M
+Be positively charged ion in the water, R-H is resin cation (R.C.);
The principles of chemistry of resin cation (R.C.) regeneration: H
++ R-M---R-H+M
+
C, waste water enter resin anion(R.A) tower (6) after resin cation (R.C.) tower (5) comes out, in resin anion(R.A) tower (6), remove the negatively charged ion in the rinse water, resin anion(R.A) tower (6) adopts double-deck floating bed technology, be to divide two portions up and down in the tower, two portions are adorned the different anions resin respectively: Ta Nei lower floor resin anion(R.A) is mainly removed the strongly-acid negatively charged ion; The upper strata resin anion(R.A) is mainly removed acidulous anion in the tower, and resin anion(R.A) tower (6) goes out water conductivity less than 20 μ s/cm;
The water of native system output is stored in the reuse tank (7), and power supply plating rinsing station is reused;
The resin anion(R.A) absorption principles of chemistry: (CrO
4)
2-+ 2R-OH---R
2-CrO
4+ 2OH
-, wherein R-OH is resin anion(R.A);
The resin anion(R.A) regeneration principles of chemistry: 2OH
-+ R
2-CrO
4---R-OH+CrO
4 2-
In d, the native system, the every product water of activated carbon adsorption tower (2) 100 hours, back washing once, the back washing water that produces water enters Waste Water Treatment and handles;
E, when the resin anion(R.A) tower (6) that adopts A wire system device produces water conductivity and is higher than 20 μ s/cm, then enable standby B wire system device and produce water, purpose is to be that the production line free of discontinuities supplies water;
F, resin tower produce when water conductivity is higher than 20 μ s/cm and illustrate that the resin absorption ion is bordering on saturated in this wire system yin, yang resin tower, need carry out manipulation of regeneration this moment to resin, resin cation (R.C.) tower (5) uses 10%HCl to regenerate, namely by first medicine notes pipes (552) and resin cation (R.C.) Tata body (50) top intake-outlet (55) 10%HCl is joined in the resin cation (R.C.) Tata body (50), use H
+The metallic cation of resin absorption is exchanged, make resin cation (R.C.) regain exchange capacity; Resin anion(R.A) tower (6) uses 5%NaOH to regenerate, with OH
-The anionresin of resin absorption is got off, make negatively charged ion regain exchange capacity, regenerate good back as stand-by still with this cover resin tower, and the method for its resin anion(R.A) tower (6) dosing and concrete operations are by second medicine notes pipes (652) and another top intake-outlet (65) of resin anion(R.A) Tata body (60) 5%NaOH to be joined in the resin anion(R.A) Tata body (60);
G, the zwitterion resin tower need separate back washing during back washing, during the back washing of resin cation (R.C.) tower, back washing water enters in the tower body from back washing water inlet pipe (542) and the first bottom intake-outlet (54) of resin cation (R.C.) Tata body (50) bottom, back washing water outlet and resin are imported and exported (56) from the first upper strata resin of tower body upper side and are discharged, entered in the back washing tower by first lower-layer resin turnover pipe (561), back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower top, returning the tower water when back washing finishes returns tower water inlet pipe (84) from resin and enters, by pipe core (81) resin is managed (82) refunds resin cation (R.C.) tower by the resin turnover, be divided into two towers back washing respectively up and down during resin anion(R.A) tower (6) back washing, as in the back washing during tower back washing water enter in the tower from the upper strata back washing water inlet pipe (642) of tower bottom, back washing water outlet and resin are discharged from the resin turnover pipe (653) of the resin anion(R.A) tower of tower body upper side, entered in the back washing tower (8) by resin turnover pipe (82), back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower top, return the tower water when back washing finishes and return tower water inlet pipe (84) from resin and enter, by pipe core (81) resin by resin turnover pipe (82) refunds resin anion(R.A) tower (6) upper strata; Under the back washing during tower back washing water enter in the tower from lower floor's back washing water inlet pipe (643) of tower bottom, back washing water outlet and resin are discharged from the resin turnover pipe (653) of the resin anion(R.A) tower of tower body upper side, entered in the back washing tower (8) by resin turnover pipe (82), back washing water, impurity and broken resin are discharged from the back washing rising pipe (83) on back washing tower (8) top, return the tower water when back washing finishes and return tower water inlet pipe (84) from resin and enter, by pipe core (81) resin by resin turnover pipe (82) refunds resin anion(R.A) tower (6) lower floor;
H, resin tower produced water tower, two process circulations of regeneration after 60 days, needed resin in the yin, yang resin tower is transplanted on the interior back washing of resin back washing tower (8) respectively, and purpose is resin chip and foreign material in the flushing resin tower.
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| CN103663792A (en) * | 2013-12-12 | 2014-03-26 | 长乐恒申合纤科技有限公司 | Nylon recycling extraction water filtering system and process |
| CN105565532A (en) * | 2014-10-08 | 2016-05-11 | 深圳市汇利龙科技有限公司 | Zero-discharge on-line treatment process for preparing deionized water from copper sulphate electroplating wastewater |
| CN106987877A (en) * | 2017-04-01 | 2017-07-28 | 厦门建霖工业有限公司 | A kind of plastic electroplating colloid Palladium recovery and the system and method for Water circulation |
| CN107520190A (en) * | 2017-09-15 | 2017-12-29 | 深圳宇熠诚环保设备有限公司 | Water recycling device and its method are rinsed after anodic oxidation |
| CN115159722A (en) * | 2022-06-23 | 2022-10-11 | 嘉戎技术(北京)有限公司 | Electroplating rinsing wastewater efficient recovery system and method thereof |
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| US4012318A (en) * | 1972-09-22 | 1977-03-15 | Kayabakoyo-Kabushiki-Kaisha | Method for the recycle treatment of waste water from chromium plating |
| JPH03202189A (en) * | 1989-12-28 | 1991-09-03 | Mitsubishi Electric Corp | Apparatus for highly efficient treatment of waste water |
| JP2003080295A (en) * | 2001-09-14 | 2003-03-18 | Think Laboratory Co Ltd | Cleaning and regenerating equipment for used cleaning water in factory |
| CN201074253Y (en) * | 2007-07-26 | 2008-06-18 | 厦门溢盛环保科技有限公司 | Recycling plant for electroplating cyanide-containing waste water |
| CN101353208B (en) * | 2007-07-26 | 2010-09-29 | 厦门溢盛环保科技有限公司 | Reclaiming process for electroplating cyanic waste water and equipment thereof |
| CN101245486A (en) * | 2008-03-17 | 2008-08-20 | 沈阳师范大学 | Method for removing aging copper foil plating solution detrimental impurities |
| CN101935119A (en) * | 2010-08-23 | 2011-01-05 | 游京初 | Processing method and device for recovering precious metals contained in electroplating wastewater |
| CN102021344B (en) * | 2010-12-10 | 2013-04-24 | 游京初 | Processing unit of precious metal contained waste liquid recovery |
| CN202164187U (en) * | 2011-06-21 | 2012-03-14 | 长春一汽富维高新汽车饰件有限公司 | Device for recycling electroplating rinsing water |
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