CN102531106A - Device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and method therefor - Google Patents
Device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and method therefor Download PDFInfo
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- CN102531106A CN102531106A CN2011104281848A CN201110428184A CN102531106A CN 102531106 A CN102531106 A CN 102531106A CN 2011104281848 A CN2011104281848 A CN 2011104281848A CN 201110428184 A CN201110428184 A CN 201110428184A CN 102531106 A CN102531106 A CN 102531106A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The invention discloses a device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and a method for removing ammonia nitrogen in waste liquor and extracting high-purity copper. The device comprises a liquid collecting tank, a reactor, an acid and alkali-resistance circulation pump and a waste gas treatment tower, wherein a liquid inlet pipe of the acid and alkali-resistance circulation pump is connected with a liquid outlet of the liquid collecting tank; a liquid outlet pipe is connected with a reactor liquid inlet; a waste liquor circulating pipe connected with the liquid collecting tank is arranged at a lateral wall of the top end of the reactor; a waste gas pipe connected with the waste gas treatment tower is arranged at the top part of the reactor, and a waste liquor input pipe is arranged on the lateral wall of the liquid collecting tank. The method for removing ammonia nitrogen in waste liquor and extracting high-purity copper comprises the steps of: (1) discharging micro-etching waste liquor generated in each workshop into the liquid collecting tank through a waste liquor input pipe, (2) pumping the waste liquor in the liquid collecting tank into the reactor through the acid and alkali-resistance circulation pump, and (3) discharging the waste liquor reacted by the reactor into the liquid collecting tank through the waste liquor circulation pump, and pumping the waste liquor into the reactor through the acid and alkali-resistance circulation pump so that the waste liquor enters inside the reactor to react under an action of the circulation pump.
Description
Technical field
The present invention relates to a kind of devices and methods therefor of removing ammonia nitrogen in the waste liquid and extracting high-purity copper, especially will make ammonia nitrogen removal contained in the waste liquid that produces in the printed substrate process and fall, and extract the devices and methods therefor of the high-purity copper in this waste liquid.
Background technology
In recent years, along with the steady-state growth of world's electronic industry, the printed circuit board (pcb) production of China industry is fast-developing, and its output and the output value have been listed as at the forefront in the world.Statistics according to authoritative institution; The printed circuit board output of China in 2006 is 13,000 ten thousand square metres; 10,000 square metres of circuit cards of every production will produce 50-100 ton ammonia nitrogen waste liquid (wherein containing a certain amount of copper in the part waste liquid), mainly be distributed in alkali etching, ammoniacal liquor and wash etc. on the manufacture craft.If this part waste liquid is directly entered sewage works, will bring certain degree of difficulty to whole Sewage treatment systems, and processing is not thorough.
Present method is handled single collection, and copper content is partly arranged at 10-45g/l in the waste liquid in this section, and certain recovery value is arranged.In the process of handling ammonia nitrogen waste water, can reclaim the copper of a part simultaneously; Recycle with the waste liquid of the present technology that is had so low copper content; Enterprise is profitless, and ammonia nitrogen can only will thisly both have been contained with the mode of paying in therefore present most of wiring board manufacturing enterprise had the waste liquid that contains metal copper ion to transfer to handle merchant's processing.
At present, still more single to the treatment technology of the ammonia nitrogen waste liquid that produced in the PCB production process, mainly be the anaerobic treatment that relies in the biochemical treatment
Summary of the invention
For addressing the above problem, the technical problem that the present invention will solve provides a kind of devices and methods therefor of removing ammonia nitrogen in the waste liquid and extracting high-purity copper.
To achieve these goals; The technical scheme that the present invention adopts is; A kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper comprises intercepting basin, reactor drum, acid and alkali-resistance recycle pump and exhaust gas treating tower, and said acid and alkali-resistance recycle pump liquid-inlet pipe is connected with the liquid outlet of intercepting basin; Drain pipe is connected with the reactor drum fluid inlet; Said reactor top one sidewall is provided with the waste liquid circulation tube that is connected with intercepting basin, and said reactor head is provided with the waste pipe that is connected with exhaust gas treating tower, and said intercepting basin one sidewall is provided with the waste liquid input tube.
Preferably; Said reactor drum be two hollow cylinder sockets and the center of circle on same axis, said reactor bottom is provided with two feets, after covering pure titanium plate on external wall of inner hollow cylinder and the upper surface as the negative electrode bucket; After covering pure titanium plate on the outer hollow cylinder inwall as the anode bucket; Be provided with the copper axle at said negative electrode bucket center, first end of said copper axle passes the handle hole of negative electrode bucket top center, and said copper axle passes through bearing fixing on said negative electrode bucket top inner wall; Said copper axle passes through packing ring and fixed by nut on the pure titanium plate of said negative electrode bucket top exterior walls; The bottom centre that second end of said copper axle passes the negative electrode bucket is connected with conducting slip ring, and through bearing fixing, the position of passing between negative electrode bucket bottom and the conducting slip ring at said copper axle is provided with chain on said copper axle and the said negative electrode bucket bottom interior wall; Said chain first end is connected with the copper axle through bearing; Second end is connected with the frequency conversion rotor pump through bearing, and said conducting slip ring is connected with nut through packing ring with the negative electrode conductive copper bar, and the pure titanium plate on the said outer hollow cylinder body inwall is connected with the anode conducting copper bar; Said negative electrode conductive copper bar is connected with the negative pole of high frequency electric source, and said anode conducting copper bar is connected with the positive pole of high frequency electric source.
Preferably, the thickness of said pure titanium plate is 1.5-2.mm, and said cathode and anode bucket can be connected in parallel for one or more.
Preferably, be coated with one deck rare metal on the pure titanium plate of said negative electrode bucket outer wall.
Preferably, the diameter difference of said cathode and anode bucket is 4-6cm, and said negative electrode bucket is for turning clockwise, and said anode bucket is fixed, and the speed of rotation of said negative electrode bucket is 20-60r/min.
Preferably, the electric current of said high frequency electric source is 50-1500A, and voltage is 1.8-3.0V.
Preferably, a kind of method of removing ammonia nitrogen in the waste liquid and extracting high-purity copper may further comprise the steps:
(1) micro-etched waste liquid that each workshop produced is discharged in the intercepting basin through the waste liquid input tube;
(2) through the acid and alkali-resistance recycle pump waste liquid in the intercepting basin is squeezed in the reactor drum;
(3) enter in the intercepting basin through the waste liquid circulation tube through the waste liquid behind the reactor reaction, squeeze in the reactor drum through the acid and alkali-resistance recycle pump, under the effect of recycle pump, the waste liquid circulation gets into the reactor drum internal reaction.
Preferably, the ammonia nitrogen concentration of waste liquid is 0-150g/l in the said step (1).
Preferably, the bivalent cupric ion concentration of waste liquid is 8-50g/l in the said step (1).
Preferably, the pH value of waste liquid is 6.5 in the said step (1).
The invention has the beneficial effects as follows that utilize simple device to remove ammonia nitrogen and extraction high-purity copper, method is simple, easy to operate; After commissioning device is stable; Daily operational management is simpler and easy, aspect working cost than additive method economy many, reach cut the waste, rationally utilize, purpose steady in a long-term up to standard; Enterprise to printed circuit board is very helpful at the waste liquid that processing is produced, for the Environmental Protection in China cause is contributed.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the structural representation of reactor drum in apparatus of the present invention;
1. intercepting basins among the figure, 2. reactor drum, 3. acid and alkali-resistance recycle pump, 4. waste liquid input tube, 5. waste liquid circulation tube, 6. waste pipe; 7. liquid-inlet pipe, 8. drain pipe, 9. fluid inlet, 10. liquid outlet, 21. negative electrode buckets, 22. anode buckets; 23. feet, 24. pure titanium plates, 25. bronze medal axles, 26. bearings, 27. packing rings, 28. nuts; 29. conducting slip ring, 30. chains, 31. frequency conversion rotor pumps, 32. negative electrode conductive copper bars, 33. anode conducting copper bars.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
As shown in Figure 1; A kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper; Comprise intercepting basin 1, reactor drum 2, acid and alkali-resistance recycle pump 3 and exhaust gas treating tower (not shown); Said acid and alkali-resistance recycle pump 3 liquid-inlet pipes 7 are connected with the liquid outlet 10 of intercepting basin 1, and drain pipe 8 is connected with reactor drum 2 fluid inlets 9, and said reactor drum 2 tops one sidewall is provided with the waste liquid circulation tube 5 that is connected with intercepting basin 1; Said reactor drum 2 tops are provided with the waste pipe 6 that is connected with exhaust gas treating tower, and said intercepting basin 1 one sidewalls are provided with waste liquid input tube 4.
As shown in Figure 2, said reactor drum 2 be two hollow cylinder sockets and the center of circle on same axis, said reactor drum 2 bottoms are provided with two feets 23; On external wall of inner hollow cylinder and upper surface, cover pure titanium plate 24 backs as negative electrode bucket 21, on the pure titanium plate of negative electrode bucket outer wall, be coated with one deck rare metal, for example ruthenium, iridium etc.; On the outer hollow cylinder inwall, cover pure titanium plate 24 backs as anode bucket 22; The thickness of said pure titanium plate is about 1.5-2.mm, and the diameter difference of two complete cathode and anode buckets is about 4-6cm, and said cathode and anode bucket can be one or more uses that are connected in parallel; Can increase the treatment capacity of waste liquid like this, increase work efficiency.Be provided with copper axle 25 at said negative electrode bucket 21 centers; First end of said copper axle 25 passes the handle hole of negative electrode bucket 21 top center; Said copper axle 25 is fixing through bearing 26 on said negative electrode bucket 21 top inner wall; Said copper axle 25 is fixing with nut 28 through packing ring 27 on the pure titanium plate 24 of said negative electrode bucket 21 top exterior walls; The bottom centre that second end of said copper axle 25 passes negative electrode bucket 21 is connected with conducting slip ring 29, and fixing through bearing 26 on said copper axle 25 and said negative electrode bucket 21 bottom interior wall, the position of passing between negative electrode bucket 21 bottoms and the conducting slip ring 29 at said copper axle 25 is provided with chain 30; Said chain 30 first ends are connected with copper axle 25 through bearing 26; Second end is connected with frequency conversion rotor pump 31 through bearing 26, and said conducting slip ring 29 is connected with nut 28 through packing ring 27 with negative electrode conductive copper bar 32, and the pure titanium plate 24 on the said outer hollow cylinder body inwall is connected with anode conducting copper bar 33; Said negative electrode conductive copper bar 32 is connected with the negative pole of high frequency electric source (not shown), and said anode conducting copper bar 33 is connected with the positive pole of high frequency electric source.
With each workshop produced waste liquid concentration with colourimetry test ammonia nitrogen, be stained with a little waste liquid with the test strip of test ammonia nitrogen concentration, according to the color of test strip change in color contrast ratio colour atla, read the concentration value of ammonia nitrogen then; With the concentration of colourimetry test bivalent cupric ion, be stained with a little waste liquid with the test strip of test bivalent cupric ion, according to the color of test strip change in color contrast ratio colour atla, read the concentration value of bivalent cupric ion then; Is ammonia nitrogen concentration that 0-150g/l and bivalent cupric ion concentration are that the waste liquid of 8-50g/l is surveyed pH value with the PH test paper; Regulate when pH value adds basic agent when following 6.5 in waste liquid,, pH value is remained on about 6.5 when pH value adds the acid medicine adjusting 6.5 when above in waste liquid; Be discharged to the above-mentioned waste liquid of adjusting in the intercepting basin 1 through waste liquid input tube 4 then; Open acid and alkali-resistance recycle pump 3, waste liquid is squeezed into reactor drum 2 inside through acid and alkali-resistance recycle pump 3 from the fluid inlet 9 of reactor drum 2, and the fluid inlet 9 of reactor drum 2 becomes skewed with the sidewall of reactor drum 2; The angle of inclination is the 30-45 degree, has guaranteed that waste liquid flows to deenergize enough and negative electrode bucket 21 formation rotary water currents.When the waste liquid liquid level surpassed the waste liquid circulation tube 5 on one sidewall of reactor drum 2 tops, the waste liquid that exceeds flowed in the intercepting basin 1 through waste liquid circulation tube 5, squeezes in the reactor drum 2 through acid and alkali-resistance recycle pump 3 once more; This moment, the entire reaction device formed the waste liquid circulation, opened frequency conversion rotor pump 31 then, chain 8 drive copper axles 25 rotations this moment; And then copper axle 25 drive negative electrode buckets 21 turn clockwise; Do equidirectional circumferential motion with the water (flow) direction of reactor drum 2 fluid inlets 9, the speed of rotation of negative electrode bucket is 20-60r/min, makes waste liquid be close to the rotation of negative electrode bucket 21 outer walls in reactor drum 2 inside; Open the high frequency electric source switch at last; Employed high frequency electric source electric current is 50-1500A, and voltage is 1.8-3.0V, makes whole reactor 2 form current path; Exceed liquid level position at reactor drum 2 tops and be provided with the waste pipe 6 that is connected with exhaust gas treating tower; Ammonia nitrogen formation gaseous substance is taken away by exhaust gas treating tower with waste gas in reactor drum 2 working process, and high-purity copper peels the high-purity copper on the negative electrode bucket 21 attached to the outer wall surface of negative electrode bucket 21 after this device quits work.So just promptly having removed the ammonia nitrogen in the waste liquid has also extracted the copper in the waste liquid.
In aforesaid method, the diameter of cathode and anode bucket can be decided according to the requirement of oneself in reactor drum 2, but diameter difference must not surpass 4-6cm, and the cathode and anode bucket can be a cover, also can be that many cover parallel connections are used.
Only be preferred implementation of the present invention in sum, should be understood that for the person of ordinary skill of the art that under the prerequisite that does not break away from the present invention's design, can also make several distortion and improvement, these also should be regarded as within protection scope of the present invention.
Claims (10)
1. device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper; Comprise intercepting basin, reactor drum, acid and alkali-resistance recycle pump and exhaust gas treating tower, it is characterized in that said acid and alkali-resistance recycle pump liquid-inlet pipe is connected with the liquid outlet of intercepting basin; Drain pipe is connected with the reactor drum fluid inlet; Said reactor top one sidewall is provided with the waste liquid circulation tube that is connected with intercepting basin, and said reactor head is provided with the waste pipe that is connected with said exhaust gas treating tower, and said intercepting basin one sidewall is provided with the waste liquid input tube.
2. a kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 1 is characterized in that, said reactor drum is that two hollow cylinder sockets and the center of circle are on same axis; Said reactor bottom is provided with two feets; After covering pure titanium plate on external wall of inner hollow cylinder and the upper surface,, after covering pure titanium plate on the outer hollow cylinder inwall,, be provided with the copper axle at said negative electrode bucket center as the anode bucket as the negative electrode bucket; First end of said copper axle passes the handle hole of negative electrode bucket top center; Through bearing fixing, through packing ring and fixed by nut, the bottom centre that second end of said copper axle passes the negative electrode bucket is connected with conducting slip ring said copper axle said copper axle on the pure titanium plate of said negative electrode bucket top exterior walls on said negative electrode bucket top inner wall; Pass through bearing fixing on said copper axle and the said negative electrode bucket bottom interior wall; The position of passing between negative electrode bucket bottom and the conducting slip ring at said copper axle is provided with chain, and said chain first end is connected with the copper axle through bearing, and second end is connected with the frequency conversion rotor pump through bearing; Said conducting slip ring is connected with nut through packing ring with the negative electrode conductive copper bar; Pure titanium plate on the said outer hollow cylinder body inwall is connected with the anode conducting copper bar, and said negative electrode conductive copper bar is connected with the negative pole of high frequency electric source, and said anode conducting copper bar is connected with the positive pole of high frequency electric source.
3. a kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 2 is characterized in that the thickness of said pure titanium plate is 1.5-2.mm, and said cathode and anode bucket can be connected in parallel for one or more.
4. a kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 2 is characterized in that, is coated with one deck rare metal on the pure titanium plate of said negative electrode bucket outer wall.
5. a kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 2; It is characterized in that the diameter difference of said cathode and anode bucket is 4-6cm, said negative electrode bucket is for turning clockwise; Said anode bucket is fixed, and the speed of rotation of said negative electrode bucket is 20-60r/min.
6. a kind of device of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 2 is characterized in that the electric current of said high frequency electric source is 50-1500A, and voltage is 1.8-3.0V.
7. the method removing ammonia nitrogen in the waste liquid and extract high-purity copper is characterized in that, may further comprise the steps:
(1) micro-etched waste liquid that each workshop produced is discharged in the intercepting basin through the waste liquid input tube;
(2) through the acid and alkali-resistance recycle pump waste liquid in the intercepting basin is squeezed in the reactor drum;
(3) enter in the intercepting basin through the waste liquid circulation tube through the waste liquid behind the reactor reaction, squeeze in the reactor drum through the acid and alkali-resistance recycle pump, under the effect of recycle pump, the waste liquid circulation gets into the reactor drum internal reaction.
8. a kind of method of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 7 is characterized in that the ammonia nitrogen concentration of waste liquid is 0-150g/l in the said step (1).
9. a kind of method of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 7 is characterized in that the bivalent cupric ion concentration of waste liquid is 8-50g/l in the said step (1).
10. a kind of method of removing ammonia nitrogen in the waste liquid and extracting high-purity copper according to claim 7 is characterized in that the pH value of waste liquid is 6.5 in the said step (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104281848A CN102531106A (en) | 2011-12-16 | 2011-12-16 | Device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and method therefor |
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| CN2011104281848A CN102531106A (en) | 2011-12-16 | 2011-12-16 | Device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and method therefor |
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| CN102531106A true CN102531106A (en) | 2012-07-04 |
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| CN2011104281848A Pending CN102531106A (en) | 2011-12-16 | 2011-12-16 | Device for removing ammonia nitrogen in waste liquor and extracting high-purity copper and method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180331A (en) * | 2019-05-05 | 2019-08-30 | 淄博棠鸣机电科技有限公司 | A kind of waste gas purification environmental protection equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007105673A (en) * | 2005-10-14 | 2007-04-26 | Nittetsu Mining Co Ltd | Treating method and treating apparatus of waste water containing nitrate nitrogen and electrolytic cell for treating waste water |
| JP3984414B2 (en) * | 2000-06-14 | 2007-10-03 | バブコック日立株式会社 | NH3-containing wastewater treatment apparatus and treatment method |
| CN101498009A (en) * | 2009-01-15 | 2009-08-05 | 湖南万容科技有限公司 | Method and equipment for recycling high purity copper block from low copper content waste liquor |
| CN201317809Y (en) * | 2008-12-04 | 2009-09-30 | 王万春 | Device for regeneration of acid etching waste solution and recovery of copper |
| CN201534880U (en) * | 2009-11-27 | 2010-07-28 | 苏州天地环境科技有限公司 | Device for electrolyzing and recycling copper from low-concentration waste liquid with copper generated from microetching and pickling |
| CN102212837A (en) * | 2011-05-10 | 2011-10-12 | 北京博莱特威能源技术有限公司 | Hydrogen production technology and generation device with high efficiency |
| CN102251254A (en) * | 2011-06-24 | 2011-11-23 | 深圳市惠尔能科技有限公司 | Circular treatment equipment for recovery of copper from microetching liquid and special eddy flow electrolysis unit thereof |
-
2011
- 2011-12-16 CN CN2011104281848A patent/CN102531106A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3984414B2 (en) * | 2000-06-14 | 2007-10-03 | バブコック日立株式会社 | NH3-containing wastewater treatment apparatus and treatment method |
| JP2007105673A (en) * | 2005-10-14 | 2007-04-26 | Nittetsu Mining Co Ltd | Treating method and treating apparatus of waste water containing nitrate nitrogen and electrolytic cell for treating waste water |
| CN201317809Y (en) * | 2008-12-04 | 2009-09-30 | 王万春 | Device for regeneration of acid etching waste solution and recovery of copper |
| CN101498009A (en) * | 2009-01-15 | 2009-08-05 | 湖南万容科技有限公司 | Method and equipment for recycling high purity copper block from low copper content waste liquor |
| CN201534880U (en) * | 2009-11-27 | 2010-07-28 | 苏州天地环境科技有限公司 | Device for electrolyzing and recycling copper from low-concentration waste liquid with copper generated from microetching and pickling |
| CN102212837A (en) * | 2011-05-10 | 2011-10-12 | 北京博莱特威能源技术有限公司 | Hydrogen production technology and generation device with high efficiency |
| CN102251254A (en) * | 2011-06-24 | 2011-11-23 | 深圳市惠尔能科技有限公司 | Circular treatment equipment for recovery of copper from microetching liquid and special eddy flow electrolysis unit thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王哲，等: "新型电解装置回收电子废弃物中铜的研究", 《中国环境科学学会学术年会论文集》 * |
| 蒋玉思，等: "印制电路板酸性蚀刻废液的回收利用", 《化工环保》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180331A (en) * | 2019-05-05 | 2019-08-30 | 淄博棠鸣机电科技有限公司 | A kind of waste gas purification environmental protection equipment |
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Application publication date: 20120704 |