CN203602428U - Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water - Google Patents
Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water Download PDFInfo
- Publication number
- CN203602428U CN203602428U CN201320673262.5U CN201320673262U CN203602428U CN 203602428 U CN203602428 U CN 203602428U CN 201320673262 U CN201320673262 U CN 201320673262U CN 203602428 U CN203602428 U CN 203602428U
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- Prior art keywords
- equalizing tank
- bin
- value
- value equalizing
- edta
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 229960001484 edetic acid Drugs 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 45
- 230000003647 oxidation Effects 0.000 claims abstract description 38
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 32
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010802 sludge Substances 0.000 claims abstract description 24
- 238000005189 flocculation Methods 0.000 claims abstract description 13
- 230000016615 flocculation Effects 0.000 claims abstract description 13
- 238000004062 sedimentation Methods 0.000 claims abstract description 11
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 10
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 238000001223 reverse osmosis Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 238000001556 precipitation Methods 0.000 abstract description 4
- 229920002401 polyacrylamide Polymers 0.000 abstract 2
- 238000009713 electroplating Methods 0.000 description 8
- 238000007747 plating Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 3
- 239000012028 Fenton's reagent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a device used for removing EDTA (ethylene diamine tetraacetic acid) in waste water. The device comprises an ultraviolet-irradiation oxidation treatment system, a flocculation precipitation system and a pH value call-back system, wherein the ultraviolet-irradiation oxidation treatment system comprises an oxidation pool, a sulfuric acid storage tank, a hydrogen peroxide storage tank, an ultraviolet lamp and a first stirrer, and the water outlet of the oxidation pool is connected with the inlet of the flocculation precipitation system; the flocculation precipitation system comprises a pH value adjustment pool 1#, an inclined-tube type sedimentation pool, a caustic soda solution storage tank, a PAM (polyacrylamide) storage tank, a sludge pool and a second stirrer, and the upper clear water outlet of the inclined-tube type sedimentation pool is connected with the inlet of the pH value call-back system; and the pH value call-back system comprises a pH value adjustment pool 2# and a third stirrer. The device disclosed by the utility model is reasonable in structure, capable of solving the problem of film blockage of waste water containing EDTA during a reclaimed water recycling process, and reducing stoppage time during the reclaimed water recycling process.
Description
Technical field
The invention belongs to technology for treating industrial waste water field, be specifically related to a kind of device of removing EDTA in waste water, particularly relate to a kind of device of electroplating or changing EDTA in waste electroplating of removing.
Background technology
The middle water reuse of electroplating or change plating industry generally refers to the process that the pickling waste waters when plating rear product and carry out before poaching wastewater that rinsing produces or plating that product carries out pickling recycles by reverse-osmosis treated.EDTA(Ethylene Diamine Tetraacetic Acid, ethylenediamine tetraacetic acid (EDTA), EDTA of the present invention represents EDTA and salt thereof.) be the good metal chelating agent of a class, it has six ligating atoms, can form the stable water-soluble coordination compound that mol ratio is 1:1 with all atoms metal, namely usually said inner complex of this coordination compound.Except sodium salt, also have the various salt such as ammonium salt and iron, magnesium, calcium, copper, manganese, zinc, cobalt, aluminium.EDTA and salt thereof are widely used in the industry such as plating, textile printing and dyeing, fine chemistry industry, medicine, synthetic rubber and food.EDTA and salt thereof are widely used in Pb in electroplating and changing plating industry
2+, Cu
2+, Zn
2+and Cr
3+deng sequestrant, these application in especially important with EDTA-2Na.Because EDTA and salt thereof belong to stable compound, the inner complex forming with heavy metal ion in water is also very stable, electroplate and change waste electroplating process in difficulty relatively.The mode processing that tradition adopts Fenton reagent or Fenton reagent to combine with ultraviolet irradiation, all cannot remove EDTA.After adopting these methods to process the almost completely free variation of EDTA even with the Fe adding
2+or Fe
3+change into more stable material.If contained complex compound did not have effectively to be abolished before carrying out reverse osmosis in poaching wastewater, in the reverse osmosis process of middle water reuse, serious film blockage problem will be there will be.
The biodegradable method of existing EDTA is only applicable to the not waste water system containing heavy metal ion.Due to the stability of EDTA self, conventionally do not exceed 5 day time containing the waste water system biochemical treatment cycle of heavy metal ion, cause equipment and place occupation problem outstanding, one time cost of investment is too high.The processing that adopts iron carbon bed electrolytic process to carry out EDTA also has some shortcomings of iron carbon bed self: the problem that hardens of high power consumption and iron carbon bed.And above method is only applicable to the direct processing discharge to electroplating or change plating rinse water, can not be used for electroplating now and changing the water reuse that plating industry generally requires.So realization is carried out middle water reuse to the direct processing of EDTA again and is had great importance.
Summary of the invention
The purpose of this utility model is the difficult problem for EDTA removes in plating and electroless plating industry, use specific device, according to the technological process of " ultraviolet irradiation processing → precipitation → pH value readjustment ", design a kind of can be rapidly and efficiently, low cost removes the device of EDTA in waste water, the stifled film problem causing due to the existence of EDTA complex compound in water reuse process in solution.
The purpose of this utility model can reach by following measures:
Remove a device of EDTA in waste water, comprise ultraviolet irradiation oxidization processing system, flocculation sedimentation system and pH value readjustment system, described ultraviolet radiation oxidization processing system comprises oxidation pond, sulfuric acid bin, hydrogen peroxide bin, UV-lamp, the first agitator, described UV-lamp is placed in corresponding quartz sleeve and is vertically installed on oxidation pond inside, described the first agitator is placed in oxidation pond top and its stirring rake inserts in oxidation pond, described sulfuric acid bin, hydrogen peroxide bin are connected with oxidation pond respectively, and the water outlet of described oxidation pond is connected with the entrance of described flocculation sedimentation system, described flocculation sedimentation system comprises 1#pH value equalizing tank, inclined tube-type settling tank, caustic soda soln bin, PAM bin, sludge sump, the second agitator, described the second agitator is placed in 1#pH value equalizing tank top and its stirring rake inserts in 1#pH value equalizing tank, described caustic soda soln bin, PAM bin is connected with 1#pH value equalizing tank respectively, the water outlet of described 1#pH value equalizing tank is connected with the entrance of inclined tube-type settling tank, described inclined tube-type settling tank bottom sludge outlet is connected with sludge sump, the top clear water output of described inclined tube-type settling tank is connected with the entrance of described pH value readjustment system, described pH value readjustment system comprises 2#pH value equalizing tank, the 3rd agitator, described the 3rd agitator is placed in 2#pH value equalizing tank top and its stirring rake inserts in 2#pH value equalizing tank, described 2#pH value equalizing tank is connected with described sulfuric acid bin, and the water outlet of described 2#pH value equalizing tank is connected with the reverse osmosis membrane system of middle water recycling device.
The connecting pipeline of described hydrogen peroxide bin and oxidation pond is provided with volume pump, for controlling hydrogen peroxide add-on.Described oxidation pond is also provided with 1#pH controller, and the connecting pipeline of described sulfuric acid bin and oxidation pond is provided with the first dosing pump, and described the first dosing pump is by a pH controller control.
The connecting pipeline of described PAM bin and 1#pH value equalizing tank is provided with the 3rd dosing pump, for controlling PAM add-on.
Described 1#pH value equalizing tank is also provided with the 2nd pH controller, and the connecting pipeline of described caustic soda soln bin and 1#pH value equalizing tank is provided with the second dosing pump, and described the second dosing pump is by the 2nd pH controller control.
Described 2#pH value equalizing tank is also provided with the 3rd pH controller, and the connecting pipeline of described sulfuric acid bin and 2#pH value equalizing tank is provided with the 4th dosing pump, and described the 4th dosing pump is by the 3rd pH controller control.
Described oxidation pond is connected with wastewater effluent mouth on production line, is provided with the first water pump on the suction culvert of oxidation pond.
The connecting pipeline of described oxidation pond and 1#pH value equalizing tank is provided with the second water pump, the connecting pipeline of described 1#pH value equalizing tank and inclined tube-type settling tank is provided with the 3rd water pump, and the connecting pipeline of described inclined tube-type settling tank and 2#pH value equalizing tank is provided with the 4th water pump.
The connecting pipeline of the reverse osmosis membrane system of described 2#pH value equalizing tank and middle water recycling device is provided with the 5th water pump.
On the connecting pipeline of described inclined tube-type settling tank and sludge sump, be also provided with sludge pump, described sludge pump is for regularly extracting the precipitating sludge of sludge sump out.
Compared to the prior art, feature of the present utility model is:
The utility model has increased uv irradiation, flocculation sediment and pH value adjusting device, only need to carry out a small amount of repacking for existing middle water reuse apparatus, does not need large facility investment and place dilatation.
The utility model is rational in infrastructure, the comparatively simple device of employing has solved containing the stifled film problem of EDTA waste water in middle water reuse process, has reduced the stoppage time in middle water reuse process.Install in the dense water of film that waste water after treatment produces in middle water reuse process complex compound content through this very low, reduce the intractability of the dense water of film, can realize the dense water of film direct chemistry, physical treatment and without the evaporation process equipment that adopts highly energy-consuming, so also reduced the processing cost of the dense water of film.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is removed the device of EDTA in electroplating wastewater.
In Fig. 1, 1-oxidation pond, 2-1#pH value equalizing tank, 3-tube settler, 4-2#pH value readjustment pond, 5-sulfuric acid bin, 6-hydrogen peroxide bin, 7-caustic soda soln bin, 8-PAM bin, 9-UV-lamp, 10-sludge sump, 11-the first agitator, 12-the first water pump, 13-the first dosing pump, 14-the one pH controller, 15-pump of constant delivery type, 16-the second water pump, 17-the second agitator, 18-the second dosing pump, 19-the 2nd pH controller, 20-the 3rd dosing pump, 21-the 3rd water pump, 22-sludge pump, 23-the 4th water pump, 24-the 3rd agitator, 25-the 4th dosing pump, 26-the 3rd pH controller, 27-the 5th water pump.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, a kind of device of removing EDTA in waste water, comprises ultraviolet irradiation oxidization processing system, flocculation sedimentation system and pH value readjustment system.
Described ultraviolet radiation oxidization processing system comprises oxidation pond 1, sulfuric acid bin 5, hydrogen peroxide bin 6, UV-lamp 9, the first agitator 11, a pH controller 14, described UV-lamp 9 is placed in corresponding quartz sleeve and is vertically installed on oxidation pond 1 inside, and described the first agitator 11 is placed in oxidation pond top and its stirring rake inserts in oxidation pond 1; Described sulfuric acid bin 5, hydrogen peroxide bin 6 are connected with oxidation pond 1 respectively, and the connecting pipeline of hydrogen peroxide bin 6 and oxidation pond 1 is provided with volume pump 15, for controlling hydrogen peroxide add-on; The connecting pipeline of sulfuric acid bin 5 and oxidation pond 1 is provided with the first dosing pump 13, and described the first dosing pump 13 is controlled by a pH value controller 14; The water outlet of described oxidation pond 1 is connected with the entrance of described flocculation sedimentation system.
Described flocculation sedimentation system comprises 1#pH value equalizing tank 2, inclined tube-type settling tank 3, caustic soda soln bin 7, PAM bin 8, sludge sump 10, the second agitator 17, the 2nd pH controller 19, described the second agitator 17 is placed in 1#pH value equalizing tank 2 tops and its stirring rake inserts in 1#pH value equalizing tank 2, described caustic soda soln bin 7, PAM bin 8 are connected with 1#pH value equalizing tank 2 respectively, the connecting pipeline of PAM bin 8 and 1#pH value equalizing tank 2 is provided with the 3rd dosing pump 20, for controlling PAM add-on; The connecting pipeline of described caustic soda soln bin 7 and 1#pH value equalizing tank 2 is provided with the second dosing pump 18, and described the second dosing pump 18 is controlled by the 2nd pH controller 19; The water outlet of described 1#pH value equalizing tank 2 is connected with the entrance of inclined tube-type settling tank 3, described inclined tube-type settling tank 3 bottom sludge outlets are connected with sludge sump 10, and the top clear water output of described inclined tube-type settling tank 3 is connected with the entrance of described pH value readjustment system.
Described pH value readjustment system comprises 2#pH value equalizing tank 4, the 3rd agitator 24, the 3rd pH controller 26, described the 3rd agitator 24 is placed in 2#pH value equalizing tank 4 tops and its stirring rake inserts in 2#pH value equalizing tank 4, described 2#pH value equalizing tank 4 is connected with described sulfuric acid bin 5, the connecting pipeline of described sulfuric acid bin 5 and 2#pH value equalizing tank 4 is provided with the 4th dosing pump 25, and described the 4th dosing pump 25 is controlled by the 3rd pH controller 26; The water outlet of described 2#pH value equalizing tank 4 is connected with the reverse osmosis membrane system of middle water recycling device.
Described oxidation pond 1 is connected with wastewater effluent mouth on production line, is provided with the first water pump 12 on the suction culvert of oxidation pond.
The connecting pipeline of described oxidation pond 1 and 1#pH value equalizing tank 2 is provided with the second water pump 16, the connecting pipeline of described 1#pH value equalizing tank 2 and inclined tube-type settling tank 3 is provided with the 3rd water pump 21, and the connecting pipeline of described inclined tube- type settling tank 3 and 2#pH value equalizing tank 4 is provided with the 4th water pump 23.
The connecting pipeline of the reverse osmosis membrane system of described 2#pH value equalizing tank 4 and middle water recycling device is provided with the 5th water pump 27.
On the connecting pipeline of described inclined tube-type settling tank 3 and sludge sump 10, be also provided with sludge pump 22, described sludge pump 22 is for regularly extracting the precipitating sludge of sludge sump 10 out.
Claims (9)
1. remove a device of EDTA in waste water, it is characterized in that comprising ultraviolet irradiation oxidization processing system, flocculation sedimentation system and pH value readjustment system, described ultraviolet radiation oxidization processing system comprises oxidation pond (1), sulfuric acid bin (5), hydrogen peroxide bin (6), UV-lamp (9), the first agitator (11), described UV-lamp (9) is placed in corresponding quartz sleeve and is vertically installed on oxidation pond (1) inside, described the first agitator (11) is placed in oxidation pond top and its stirring rake inserts in oxidation pond (1), described sulfuric acid bin (5), hydrogen peroxide bin (6) is connected with oxidation pond (1) respectively, the water outlet of described oxidation pond (1) is connected with the entrance of described flocculation sedimentation system, described flocculation sedimentation system comprises 1#pH value equalizing tank (2), inclined tube-type settling tank (3), caustic soda soln bin (7), PAM bin (8), sludge sump (10), the second agitator (17), described the second agitator (17) is placed in 1#pH value equalizing tank (2) top and its stirring rake inserts in 1#pH value equalizing tank (2), described caustic soda soln bin (7), PAM bin (8) is connected with 1#pH value equalizing tank (2) respectively, the water outlet of described 1#pH value equalizing tank (2) is connected with the entrance of inclined tube-type settling tank (3), described inclined tube-type settling tank (3) bottom sludge outlet is connected with sludge sump (10), the top clear water output of described inclined tube-type settling tank (3) is connected with the entrance of described pH value readjustment system, described pH value readjustment system comprises 2#pH value equalizing tank (4), the 3rd agitator (24), described the 3rd agitator (24) is placed in 2#pH value equalizing tank (4) top and its stirring rake inserts in 2#pH value equalizing tank (4), described 2#pH value equalizing tank (4) is connected with described sulfuric acid bin (5), and the water outlet of described 2#pH value equalizing tank (5) is connected with the reverse osmosis membrane system of middle water recycling device.
2. the device of EDTA in removal waste water according to claim 1, is characterized in that the connecting pipeline of described hydrogen peroxide bin (6) and oxidation pond (1) is provided with volume pump (15).
3. the device of EDTA in removal waste water according to claim 1, it is characterized in that described oxidation pond (1) is also provided with a pH controller (14), the connecting pipeline of described sulfuric acid bin (5) and oxidation pond (1) is provided with the first dosing pump (13), and described the first dosing pump (13) is controlled by a pH controller (14).
4. the device of EDTA in removal waste water according to claim 1, is characterized in that the connecting pipeline of described PAM bin (8) and 1#pH value equalizing tank (2) is provided with the 3rd dosing pump (20).
5. the device of EDTA in removal waste water according to claim 1, it is characterized in that described 1#pH value equalizing tank (2) is also provided with the 2nd pH controller (19), the connecting pipeline of described caustic soda soln bin (7) and 1#pH value equalizing tank (2) is provided with the second dosing pump (18), and described the second dosing pump (18) is controlled by the 2nd pH controller (19);
Described 2#pH value equalizing tank (4) is also provided with the 3rd pH controller (26), the connecting pipeline of described sulfuric acid bin (5) and 2#pH value equalizing tank (4) is provided with the 4th dosing pump (25), and described the 4th dosing pump (25) is controlled by the 3rd pH controller (26).
6. the device of EDTA in removal waste water according to claim 1, is characterized in that being provided with the first water pump (12) on the suction culvert of described oxidation pond (1).
7. the device of EDTA in removal waste water according to claim 1, the connecting pipeline that it is characterized in that described oxidation pond (1) and 1#pH value equalizing tank (2) is provided with the second water pump (16), the connecting pipeline of described 1#pH value equalizing tank (2) and inclined tube-type settling tank (3) is provided with the 3rd water pump (21), and the connecting pipeline of described inclined tube-type settling tank (3) and 2#pH value equalizing tank (4) is provided with the 4th water pump (23).
8. the device of EDTA in removal waste water according to claim 1, is characterized in that the connecting pipeline of the reverse osmosis membrane system of described 2#pH value equalizing tank (4) and middle water recycling device is provided with the 5th water pump (27).
9. the device of EDTA in removal waste water according to claim 1, is characterized in that being also provided with sludge pump (22) on the connecting pipeline of described inclined tube-type settling tank (3) and sludge sump (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673262.5U CN203602428U (en) | 2013-10-29 | 2013-10-29 | Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673262.5U CN203602428U (en) | 2013-10-29 | 2013-10-29 | Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water |
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| Publication Number | Publication Date |
|---|---|
| CN203602428U true CN203602428U (en) | 2014-05-21 |
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ID=50715115
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673262.5U Expired - Lifetime CN203602428U (en) | 2013-10-29 | 2013-10-29 | Device for removing EDTA (ethylene diamine tetraacetic acid) in waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203602428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163529A (en) * | 2014-08-11 | 2014-11-26 | 李金成 | Treatment process of zinc-nickel alloy electroplating wastewater |
| CN105461145A (en) * | 2014-12-25 | 2016-04-06 | 南京源泉环保科技股份有限公司 | Method for removing complexed organic matters from wastewater |
| CN107445341A (en) * | 2017-08-29 | 2017-12-08 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
-
2013
- 2013-10-29 CN CN201320673262.5U patent/CN203602428U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163529A (en) * | 2014-08-11 | 2014-11-26 | 李金成 | Treatment process of zinc-nickel alloy electroplating wastewater |
| CN105461145A (en) * | 2014-12-25 | 2016-04-06 | 南京源泉环保科技股份有限公司 | Method for removing complexed organic matters from wastewater |
| CN107445341A (en) * | 2017-08-29 | 2017-12-08 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
| CN107445341B (en) * | 2017-08-29 | 2019-10-18 | 上海电力学院 | The integrated processing system and processing method of one kind of multiple power plant's cleaning waste water |
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