CN101423280A - Waste liquid treatment method, waste liquid treatment apparatus and waste liquid treatment system - Google Patents
Waste liquid treatment method, waste liquid treatment apparatus and waste liquid treatment system Download PDFInfo
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- CN101423280A CN101423280A CNA2007101851311A CN200710185131A CN101423280A CN 101423280 A CN101423280 A CN 101423280A CN A2007101851311 A CNA2007101851311 A CN A2007101851311A CN 200710185131 A CN200710185131 A CN 200710185131A CN 101423280 A CN101423280 A CN 101423280A
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Abstract
A waste liquid treatment method can be used for treating the waste liquid containing copper ions and ferrous ions; the method comprises the following steps: the waste liquid is supplied to a main reactor which comprises a discharge end and a feed end, moreover, the discharge end is provided with a protective cathode and the feed end is provided with an opposite anode; iron powder which essentially takes a reduction state is supplied to the main reactor to be reacted with the waste liquid so as to generate copper particulars; and the copper particulars are separated from the waste liquid after reaction. In addition, the invention also provides a treatment method for the ferric chloride line waste liquid, a treatment device for the ferric chloride line waste liquid, and a treatment system for the ferric chloride line waste liquid.
Description
Technical field
The present invention relates to a kind of treatment process, Apparatus and system of waste liquid, particularly about a kind of treatment process, Apparatus and system of chloride series waste liquid.
Background technology
Printed circuit board (PCB) is the design according to circuit, the electrical wiring of junction circuit part is depicted as the wiring figure, and then utilize modes such as specified surface treatment, mechanical workout that electric conductor is reappeared, with as supporting the interconnected built-up foundation of circuit between electronic component and part; In other words, printed circuit board (PCB) is the substrate in order to the collocation electronic component.The effect of this series products is to utilize the formed electronic circuit of circuit card to link all kinds of electronic components, brings into play the function of each electron-like spare part, to reach the purpose of signal processing.
In general, the manufacturing of printed circuit board (PCB) comprises quite a lot of procedure.At first, plate itself can have different manufacture method according to the difference of selected substrate, comprises additive process and relief method.In addition, according to the number of plies difference of circuit card, single sided board, dual platen and multi-ply wood also all need different flow processs and step.And in various step, the quality of etching step has critical influence for quality of printed circuits that finally obtains and precision.
When carrying out the etching operation, mainly utilize etching solution that the copper coating metal layer that belongs to NOT-circuit circulation position on the substrate is removed.Common etching solution comprises acidic etching liquid, as iron(ic) chloride, cupric chloride or the like, and alkaline etching liquid, contain ammoniacal liquor etc. as alkalescence.Should adopt which kind of etching solution actually, mainly decide on the anti-etching resistance agent kind that is adopted in the technology.For instance, be anti-etching resistance agent person's positive blade technolgy with printing ink/dry film, etching solution is adopted the plumbous resistance of tin agent person then based on alkaline etching liquid with acid.In aforementioned two kinds of acidic etching liquid iron(ic) chloride and cupric chloride, the latter adopts more in the past, one of traces it to its cause, and be that the reclaiming of copper chloride etching waste liquid is more or less freely, and its copper content is much higher than the iron(ic) chloride etching waste liquor.
Yet in recent years, along with the direction of electronics and IT products towards compactization develops, printed circuit board (PCB) begins to develop towards the direction of high-density and automatization assembling.The distribution of high-density and multiple stratification (be high-density distribution technology, High Density Interconnection Technology is called for short HDI) formation technology becomes the main flow of circuit card development of manufacturing gradually.In view of the above, the production dealer of many high-order plates also begins to seek to provide the technology solution of high degree of accuracy.
All can be in the unit of improveing in technology, because etched precision directly influences the resolving power (resolution) of wiring, and the height of resolving power has the influence of key for characteristic impedance value (characteristicimpedance) size of circuit card, therefore, improve from etch process itself provide that the high-precision circuit plate is the most direct, one of effective direction.
Observe and produce the employed etch process of high-order plate manufacturer at present, particularly the manufacturer of advanced technology country is not difficult to find the dealer who adopts acidic etching liquid at present, begin gradually to abandon cupric chloride etch process in the past, begin to turn to change and adopt with the technology of iron(ic) chloride as main etching solution.Trace it to its cause, mainly be: one, under identical comparison basis, the etching speed of iron(ic) chloride is fast than cupric chloride, and speed is fast about more than 38%.Two, because etching speed is fast, the lateral erosion that iron(ic) chloride produced is less, and its etching factor (etching factor, promptly etching solution institute metathetical copper is thick in the lateral erosion degree of depth) is about 2.5 under the condition of not adding shore protection agent (banking agent), far above about 1 to 1.5 of cupric chloride.
Because the etching characteristic of iron(ic) chloride own promptly is better than cupric chloride, cooperating the more non-cupric chloride of etching precision that is showed under the various controls can reach.Therefore, the characteristic of its low lateral erosion has satisfied the requirement for wiring precision, allows more and more high-order plate manufacturers that produce bring into use iron(ic) chloride.However, use iron(ic) chloride for manufacturer, but to have the another one problem to solve, i.e. the processing of waste liquid.
For etching waste liquor, mostly use shunting or store the outer mode of committee in the industry cycle at present and handle.With the cupric chloride is example, announced the recycling method of many copper chloride etching waste liquids in the prior art, as TaiWan, China patent announcement number No. 473559, No. the 200643225th, TaiWan, China patent publication No., No. the 7175819th, United States Patent (USP) notification number or the like.Simultaneously, because the copper content of copper chloride etching waste liquid under equal volume is more much higher than iron(ic) chloride etching waste liquor, comparatively sophisticated subsequent disposal technology in the cooperation, the cost recovery of copper chloride etching waste liquid is cheap relatively.
By contrast, the iron(ic) chloride etching waste liquor is because copper content is lower, and the recovery personnel can't therefrom restore the copper of volume, so its recovery wish is lower.In addition, because the copper content of per unit volume is low, required transportation cost is also high than copper chloride etching waste liquid.
In general, how the recovery personnel of iron(ic) chloride etching waste liquor for reducing its processing cost, soak bum porousness iron sheet with waste liquid, so that copper is cemented out and peddles after obtaining waste liquid at present.For the waste liquid after handling and since wherein impurity too much and be difficult to ensure the quality of products, and the return circuit plate manufactory usefulness of carrying out etching again.Therefore, these waste liquids finally are poured onto remote place mostly and cause serious environmental pollution.
Various iron(ic) chloride etching waste liquor treatment technologies were once disclosed in the prior art, with the TaiWan, China patent announcement is example number No. 416995, it mainly discloses a kind of renovation process of chloride series etching waste liquor, it sneaks into iron powder in containing the less foreign metal ionic chloride series etching waste liquor of copper, nickel geometric ratio iron ion tendency, make iron powder and metal ion produce reaction and remove wherein foreign metal ion, and this iron powder treatment solution is carried out oxide treatment.
Yet because itself there is certain problem in these technology, the ratio that industrial community is used is not high.Therefore, be necessary to provide a kind of comparatively reliable, stable, low-cost and the method and the relevant device that can in factory, reclaim at the iron(ic) chloride etching waste liquor.
Summary of the invention
Main purpose of the present invention is to provide a kind of method for treating waste liquid, its can reduce in use reduce be formed in the reaction zone iron powder skin copper once more by the waste liquid oxidation phenomenon take place, and then improve rise copper the rate of recovery.
For achieving the above object, the invention provides a kind of method for treating waste liquid, it can comprise the waste liquid that contains cupric ion and ferrous ion in order to handle one, this method may further comprise the steps: one, this waste liquid is provided to a main reactor, this main reactor comprises a discharge end and a feed end, and this discharge end is equiped with a protectiveness negative electrode, and this feed end is equiped with a phase antianode; Two, will be the iron powder of going back ortho states in fact is provided to this main reactor and this waste liquid and reacts to produce shot copper; Three, this shot copper is separated with reacted this waste liquid.
By the protectiveness negative electrode is provided, aforesaid method of the present invention can reduce in use and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation, and then improves the rate of recovery of copper.
Another main purpose of the present invention is to provide a kind of method for treating waste liquid, can be relatively simple, implement easily simultaneously separate shot copper and reacted waste liquid.
For achieving the above object, the invention provides a kind of method for treating waste liquid, in order to handle a waste liquid that comprises cupric ion and ferrous ion, this method may further comprise the steps: one, this waste liquid is provided to a main reactor; Two, will be the iron powder of going back ortho states in fact is provided to this main reactor and this waste liquid and reacts to produce shot copper; Three, utilize this shot copper of magneticseparation and reacted this waste liquid.
Owing to comprise a certain proportion of iron core in the shot copper in the reaction zone, so the present invention can utilize magnetic force to separate this shot copper and reacted this waste liquid, provide a kind of simple relatively, simultaneously the separation method of implementing easily.
Another main purpose of the present invention is to provide a kind of treatment process of chloride series waste liquid, it not only can reduce and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation, and then improve the rate of recovery of copper, can also comparatively make things convenient for, simple means separate shot copper and reacted waste liquid.
For achieving the above object, the invention provides a kind of treatment process of chloride series waste liquid, it may further comprise the steps: one, be that waste liquid is provided to a main reactor with monochlor(in)ate iron, this main reactor comprises a discharge end and a feed end, and this discharge end is equiped with a protectiveness negative electrode, and this feed end is equiped with a phase antianode; Two, will be the iron powder of going back ortho states in fact is provided to this main reactor and this waste liquid and reacts to produce shot copper; Three, utilize this shot copper of magneticseparation and reacted this waste liquid.
By collocation protectiveness negative electrode and use magneticseparation means; method of the present invention not only can reduce and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation; and then improve the rate of recovery of copper, can also comparatively make things convenient for, simple means separate this shot copper and reacted this waste liquid.
A main purpose more of the present invention is to provide a kind of chloride series liquid waste treating apparatus, and it can reduce and is formed at the outer field copper of iron powder in the reaction zone and is taken place by the phenomenon of waste liquid oxidation once more.
For achieving the above object, the invention provides a kind of chloride series liquid waste treating apparatus, it mainly comprises: an axially extended body, and its inner reaction zone that limits, this body below offers a discharge port; One waste liquid gatherer, it is in order to import waste liquid this reaction zone; One iron powder gatherer, it produces shot copper in order to iron powder is imported this reaction zone so that this waste liquid and this iron powder react in reaction zone; One protectiveness negative electrode, it is installed in this body on the inwall of discharge port one side; And a phase antianode, it is installed in and this protectiveness negative electrode not on the inner body wall of homonymy.
Liquid waste treating apparatus of the present invention can be in order to handling the chloride series waste liquid, and use the cupric ion that reclaims in the waste liquid.When energising, this protectiveness negative electrode can be formed at the outer field copper of iron powder once more by the phenomenon of waste liquid oxidation in order to reduce in the reaction zone.
Another main purpose of the present invention is to provide a kind of chloride series liquid waste treatment system, it not only can reduce and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation, and then improve the rate of recovery of copper, can also comparatively make things convenient for, simply device separates this shot copper and reacted this waste liquid.
For achieving the above object, the invention provides a kind of chloride series liquid waste treatment system, it mainly includes a liquid waste treating apparatus and a magnetic resolution device.Wherein, this liquid waste treating apparatus mainly comprises an axially extended body, its inner reaction zone that limits, and this body below offers a discharge port; One waste liquid gatherer, it is in order to import waste liquid this reaction zone; One iron powder gatherer, it produces shot copper in order to iron powder is imported this reaction zone so that this waste liquid and this iron powder react in reaction zone; One protectiveness negative electrode, it is installed in this body on the inwall of discharge port one side; And a phase antianode, it is installed in and this protectiveness negative electrode not on the inner body wall of homonymy.And this magnetic resolution device is installed in the below of this liquid waste treating apparatus discharge port, and it can utilize magneticseparation this reacted this waste liquid and this shot copper.
By collocation protectiveness negative electrode and use equipment for magnetic separation; chloride series liquid waste treatment system of the present invention not only can reduce and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation; and then improve the rate of recovery of copper, can also comparatively make things convenient for, simply device separates this shot copper and reacted this waste liquid.
Description of drawings
Fig. 1 is the schema of a kind of embodiment of method for treating waste liquid.
Fig. 2 is the synoptic diagram of chloride series liquid waste treating apparatus of the present invention and chloride series liquid waste treatment system.
Fig. 3 is the vertical view of the chloride series liquid waste treating apparatus of Fig. 2 along A-A ' section.
Fig. 4 is applied to the synoptic diagram of an embodiment in the printed circuit board technology for chloride series liquid waste treatment system of the present invention.
Fig. 5 is applied to the synoptic diagram of another embodiment in the printed circuit board technology for chloride series liquid waste treatment system of the present invention.
Wherein, description of reference numerals is as follows:
Chloride series liquid waste treatment system 100 chloride series liquid waste treating apparatus 110
Protectiveness negative electrode 117c phase antianode 117a
The 111c of first part second section 111f
Iron powder input setting device 115a waste liquid flow rate adjustment device 113a
Scaler 139 angle adjusters 137
Flushing arrangement 132 etching baths 200
Centrifuge 700
Embodiment
For can further understanding technology contents of the present invention, be described as follows especially exemplified by specific embodiment.
Please earlier with reference to Fig. 1, it is the schema of a kind of embodiment in the method for treating waste liquid of the present invention.Below describe with regard to each step.
Step 201: waste liquid is provided
At first, method for treating waste liquid of the present invention at first is provided to waste liquid in one main reactor.The source of waste liquid mainly is the waste liquid that contains cupric ion and ferrous ion, is preferably employed chloride series acidic etching waste liquid in the printed circuit board technology.
Waste liquid can directly be imported in the main reactor by treatment trough, can also be through importing after certain processing again.For instance, for reducing the ORP value of waste liquid in the treating processes, can be before waste liquid imports main reactor, earlier with liquid medicine or this waste liquid of otherwise processed.
Shape, the size of main reactor do not limit.For instance, under the preferred situation, main reactor can have a body, and it can comprise a columned first part and a funnelform second section, and the body below offers discharge port.
Step 203: iron powder is provided
Be the cupric ion in the energy efficient recovery waste liquid, the present invention has adopted and has been in the iron powder of going back ortho states in fact.It is consistent in fact that it is mainly character, and the ortho states iron powder of going back free from foreign meter in fact.It is reactive preferably that this iron powder can provide, thereby can shorten the reaction times.For instance, employed reduced iron powder when it can be general powder metallurgy, but not to exceed.
Under the general situation, the particle diameter of this iron powder is not specially limited.In addition, under the preferred situation, the particle diameter of this iron powder is substantially the same, in view of the above, finally reclaim and shot copper character be easier to control.
In theory, the particle diameter of this iron powder is relevant with the various factorss such as length that handled waste liquid character, waste liquid flow into the interior flow velocity of main reactor, main reactor, finally decides on the character of the final shot copper of wishing to get of user.In the present invention, the particle diameter of this iron powder is preferably between 100 orders (mesh) between 500 orders, preferably between 150 order to 300 orders.
Step 205: produce shot copper
Contain in the main reactor of waste liquid when iron powder adds, iron powder and waste liquid promptly begin reaction.Because iron is bigger than the tendency of cupric ion change, so iron powder promptly can diminish in the settled process in main reactor gradually, and the cupric ion in the waste liquid will be reduced into copper gradually and outside the cladding iron powder, finally become the shot copper that is coated with iron core on iron powder.
In specification sheets of the present invention, unless otherwise defined, shot copper refers to that without exception inside is coated with shot copper unshakable in one's determination.
Be coated in the process that forms shot copper on the iron core at cupric ion, if the ORP of waste liquid is higher (as the employed about 580mV～590mV of fine etching or the general employed about 530mV of etching～550mV), then being formed at the surperficial copper atom of iron core may be lost by the waste liquid oxidation once again.
For reducing the generation of this phenomenon, the adoptable practice comprises that for instance, before waste liquid imported main reactor, the ORP value with waste liquid was reduced to about 500mV or lower earlier.
Under the preferred situation, (near discharge port place) makes a protectiveness negative electrode also optionally in the main reactor lower end, and the upper end then makes a phase antianode, and the two is socketed in respectively on the inwall of main reactor.In when energising, the protectiveness negative electrode with this mutually the voltage between antianode be preferably between about 30mV and 100mV in fact between about 10mV and 500mV.In view of the above, be formed at the outer field copper of iron powder by the phenomenon of waste liquid oxidation with minimizing.
Under the general situation, the material of this electrode can be various inert metals.Under the preferred situation, it can be the titaniferous electrode, as the titanium electrode, or titanium alloy electrode, as the titanium iridium electrode, but not as limit.
Step 207: separate shot copper and reacted waste liquid
Finish reaction in main reactor after, formed shot copper and reacted waste liquid can be flowed out by the discharge port of main reactor below, at this moment, can utilize the whole bag of tricks to separate.
For instance, owing to be coated with iron core in the shot copper, can adopt magnetic separation method to separate shot copper and waste liquid through reacting.Undoubtedly, other non-magnetic force method also can be used for separating the two, as utilizes the sieve of specific mesh.
In using the isolating example of magnetic force method, a magnetic resolution device can be set below main reactor, as a band conveyor with magnetic force generation unit, but not as limit.For instance, preferably can in band conveyor, use conveying belt, as utilize rubbernet as conveying belt with magnetic.Wherein, the conveying belt of band conveyor can be accepted this reacted this waste liquid and this shot copper with a fixed angle of altitude, so the effusive reacted waste liquid of discharge port will be along the end of conveyor belt flow to conveying belt under action of gravity, and then flows into receiving tank.Shot copper then can be subjected to the attraction of magnetic force and rest on the conveying belt that moves continuously, and the magneticaction that is sent to conveying belt less than the other end, and then fall into the receiving tank of the other end.
It should be noted that the alleged separation of the present invention refers to a great extent separately solid and liquid, be not limited in and remove solid surface or inner liquid fully.
Step 209: clean shot copper
In the present invention, promptly finish the purpose that copper of the present invention and waste liquid reclaim behind separation shot copper and the reacted waste liquid.So, the user still looks its subsequent disposal that need carry out the copper example.For instance, after shot copper is collected, can adopt continuous mode to clean this shot copper with anergy liquid.In the present invention, spendable cleaning way is not specially limited.Under the preferred situation, the continous way that can cooperate inverted draft to carry out shot copper is beaten wind and is cleaned.In addition, look user's needs, clean shot copper and can in single groove, carry out, also can in a plurality of grooves, carry out.
Step 211: antioxidation treatment
For the shot copper after avoiding cleaning further is oxidized to the cupric oxide of black, shot copper comparatively attractive in appearance is provided simultaneously, although non-be steps necessary, method of the present invention still can be carried out antioxidation treatment to shot copper after cleaning shot copper.In general, spendable anti-oxidation method is not specially limited, and is preferably to use antioxidant to handle shot copper, is preferably to use the antioxidant that comprises benzotriazole to handle shot copper, as the citric acid solution of benzotriazole or the phosphoric acid solution of benzotriazole, but be not limited to this.
Step 213: dehydration
After antioxidation treatment, can obtain color and luster shot copper comparatively attractive in appearance.For further removing the liquid on shot copper surface,, optionally carry out a dehydrating step in the method for the present invention to obtain the lower shot copper of water content.Dehydration method is not specially limited, and it is preferably and can utilizes as the employed belt filter press of waste water engineering, is preferably to utilize as centrifuge to carry out the centrifugal dehydration treatment of shot copper.
Step 215: drying
For further obtaining exsiccant shot copper in fact, method of the present invention is also optionally carried out a drying treatment after dehydrating step.Spendable drying means is not specially limited, and can be oven dry, dry or the like, and be preferably can utilize and carry out such as the spray-drier that uses in the food engineering, but not as limit.
Step 217: reclaim shot copper
As previously mentioned, method of the present invention is recyclable shot copper finishing after separating shot copper and reacted waste liquid in fact, can also optionally carry out foregoing processing earlier after separation, reclaims again, looks closely user's demand and decides.
Referring again to Fig. 2, it is the synoptic diagram of chloride series liquid waste treating apparatus 110 of the present invention and chloride series liquid waste treatment system 100.As shown in Figure 2, chloride series liquid waste treating apparatus 110 of the present invention mainly comprises an axially extended body 111, defines a reaction zone in it, and this body below also offers a discharge port 111o; Monochlor(in)ate iron is waste liquid gatherer 113, in order to waste liquid is imported this reaction zone; One iron powder gatherer 115 imports this reaction zone in order to will be the iron powder of going back ortho states in fact, produces shot copper so that this waste liquid and this iron powder react in reaction zone; One protectiveness negative electrode 117c is installed on the inwall of these body 111 contiguous discharge port 111o one sides; And a phase antianode 117a, be installed in and this protectiveness negative electrode 117c not on the inner body wall of homonymy.
Among the present invention, the shape of body 111 is not specially limited, and it is preferably and can comprises a columned 111c of first part and a funnelform second section 111f.And under aforementioned circumstances, protectiveness negative electrode 117c can be installed in respectively on the inwall of second section 111f and the 111c of first part with antianode 117a mutually, and its installing mode is preferably the socket mode of utilizing, but not as limit.
Among the present invention, iron powder gatherer 115 comprises anyly will be device or the assembly that the iron powder of going back ortho states is sent into body 111 inside in fact, as transfer lime, feeder.Under the preferred situation, it can be various continous way feeding units, is preferably a continous way screw-pushing type automatic feeder.Similarly, chloride series waste liquid gatherer 113 can comprise any device or assembly with pending chloride series waste liquid importing body 111 inside, as transfer lime, conduit or the like.
In addition, for the iron powder gatherer 115 that can regulate and control the feeding of iron powder and waste liquid, be essentially to go back ortho states also optionally comprises an iron powder input setting device 115a, it is available for users to regulate the quantity that this iron powder imports this reaction zone.Similarly, chloride series waste liquid gatherer 113 also optionally comprises a waste liquid flow rate adjustment device 113a, and it is available for users to regulate the flow velocity that this waste liquid imports this reaction zone.In view of the above, the user can look it need be according to the size of body 111, the operating method that parameter adjustments such as waste liquid flow velocity and iron powder inlet amount one are fit to.
Among the present invention; protectiveness negative electrode 117c mainly is installed on the inwall of body 111 with antianode 117a mutually; in when energising, protectiveness negative electrode 117c with this mutually the voltage between antianode 117a be preferably between about 30mV and 100mV in fact between about 10mV and 500mV.In view of the above, can reduce and be formed at the outer field copper of iron powder in the treating processes by the phenomenon of waste liquid oxidation.
Under the general situation, the material of electrode 117a, 117c can be various inert metals.Under the preferred situation, it can be the titaniferous electrode, as the titanium electrode, or titanium alloy electrode, as the titanium iridium electrode, but not as limit.
As shown in Figure 2, chloride series liquid waste treating apparatus 110 of the present invention also optionally comprises a delivery line 119, and it can be installed in the reaction zone of body 111 inside.Delivery line 119 can utilize connecting pipe principle that partly reacted waste liquid is derived body 111, its caliber, and parameters such as pipe range are not specially limited, and visual user need adjust.
As shown in Figure 2, when chloride series liquid waste treating apparatus 110 of the present invention is worked, iron powder gatherer 115 and chloride series waste liquid gatherer 113 will be the reaction zone that the iron powder of going back ortho states and waste liquid are sent into body 111 respectively in fact, in the settled process of iron powder, it will diminish gradually because of iron atom is oxidized, and have copper atom to reduce gradually and be coated on outside the iron powder.By installing protectiveness negative electrode 117c and antianode 117a mutually, chloride series liquid waste treating apparatus 110 of the present invention also can reduce and is formed at the outer field copper of iron powder in the reaction zone once more by the phenomenon of waste liquid oxidation, and then the rate of recovery of raising copper.
Reacted waste liquid and shot copper will be by the outflows of main body discharge port 111o below, and it can carry out the adjustment of load by a control valve 112.
Please in the lump with reference to Fig. 3, it is the vertical view of the chloride series liquid waste treating apparatus 110 of Fig. 2 along A-A ' section, wherein, for producing a venturi effect in reaction zone, chloride series waste liquid gatherer 113 of the present invention is optionally to import this waste liquid with the tangent in fact direction of the 111c of first part.Plant the waste liquid lead-in mode by this, waste liquid and iron powder mixed effect preferably not only can be provided, also be available for users to the settling time of iron powder in reaction zone finely tuned.
As shown in Figure 2, the present invention one provides a kind of chloride series liquid waste treatment system 100, except chloride series liquid waste treating apparatus 110 as the aforementioned, also comprise a magnetic resolution device 130, it is installed on the below of the discharge port 111o of chloride series liquid waste treating apparatus 110, and the effect of utilizing this reacted this waste liquid of magneticseparation and this shot copper is provided.
Under the general situation, the structure of magnetic resolution device 130 is not specially limited, its can be any after utilizing magnetic force with separating reaction waste liquid and the device of shot copper.For instance, under the preferred situation, magnetic resolution device 130 can comprise an endless apron 131, and it accepts the waste liquid and the shot copper of this reaction with a fixed angle of altitude; A plurality of cylinders 133, it can drive this endless apron 131; And a magnetic force generation unit 135, it can be in order to being adsorbed on shot copper on the endless apron 131, and then waste liquid behind the separating reaction and shot copper.
As shown in Figure 2, after reacted this waste liquid and this shot copper are flowed out by chloride series liquid waste treating apparatus 110 belows, it will drop down onto on the magnetic resolution device 130.Wherein, magnetic resolution device 130 can utilize and be coated with characteristic unshakable in one's determination in the shot copper with shot copper absorption thereon, and then waste liquid behind the separating reaction and shot copper.
With structure shown in Figure 2 is example, because endless apron 131 belows have magnetic force generation unit 135, the shot copper that drops down onto endless apron 131 will be subjected to the magnetic attraction of magnetic force generation unit 135, and be taken to an end of magnetic resolution device 130 by the endless apron 131 of continued running.By contrast, be not subjected to the reacted waste liquid of magnetic force generation unit 135 effects then to flow to the other end, and be collected in the receiving tank that disposes waste liquid along the endless apron 131 that tilts.
It should be noted that the position that magnetic force generation unit 135 is installed is not limited especially, for instance, it also can be installed in endless apron 131 inside, as utilizes rubbernet as endless apron 131.
Under the general situation, shot copper can drop down onto the shot copper receiving tank after delivering to magnetic resolution device 130 1 ends.But for further striking off the shot copper that is attached on the endless apron 131, the present invention optionally provides a scaler 139 to remove the most of shot copper on the endless apron 131.
It should be noted, in the present embodiment, not limited especially on the material of endless apron 131 of the present invention.It preferably can be a soft conveying belt.Similarly, magnetic force generation unit 135 can also be any device that magnetic attraction is provided, and it can be permanent magnet (being rigid magnet) or temporary magnet (being soft magnet), and it preferably can be rubbernet.
For being easy to adjust the elevation angle that endless apron 131 is accepted reacted waste liquid and shot copper for the user, magnetic resolution device 130 1 of the present invention optionally comprises an angle adjuster 137, allows the user adjust the elevation angle according to the difference of various operating parameterss.
In addition, as shown in Figure 2, for separating back termination reaction fast at shot copper, chloride series liquid waste treatment system 100 of the present invention also optionally comprises a flushing arrangement 132, its can shot copper with provide the anergy liquid wash this shot copper after reacted waste liquid separates.
Referring again to Fig. 4, it is applied to a synoptic diagram of implementing in the printed circuit board technology for chloride series liquid waste treatment system 100 of the present invention.Because chloride series liquid waste treatment system 100 of the present invention can provide more traditional waste liquor treatment equipment volume little advantage, it not only can be used for handling outside the factory of waste liquid, also can be applicable to processing in the factory of waste liquid.As shown in Figure 4, but chloride series waste liquid drainage to a storage tank 300 that etching bath 200 is produced, and send into chloride series liquid waste treatment system 100 by the waste liquid gatherer again and handle and separate.Treated waste liquid returns etching bath 200 after can optionally adjusting, and the shot copper that reclaims is optionally delivered to treatment trough 400 and is cleaned and antioxidation treatment, recycling afterwards belt filter press 500 dewaters, and carries out drying treatment by spray-drier 600.
Referring again to Fig. 5, it is applied to the synoptic diagram of another enforcement in the printed circuit board technology for chloride series liquid waste treatment system 100 of the present invention.Different with Fig. 4 is, treatment trough 400 clean and antioxidation treatment after, shot copper is dewatered by a centrifuge 700, and directly collects in the dehydration back that finishes.In the present embodiment, chloride series liquid waste treatment system 100, treatment trough 400 and centrifuge 700 are preferably and are integrated into a module, but not as limit.
It should be noted, in the aforementioned embodiment, clean, anti-oxidant and subsequent step is and can optionally increases and decreases arbitrarily, is not the application in order to restriction chloride series liquid waste treatment system 100 of the present invention.
To sum up institute is old, and no matter the present invention all shows it be different from the feature of prior art with regard to purpose, method and effect, has realized technical breakthrough.But must notice that the foregoing description only is exemplary illustration principle of the present invention and effect thereof, but not is used to limit the scope of the invention.Any personnel that are familiar with this technology all can be under the condition of know-why of the present invention and spirit, and above embodiment is made an amendment and changes.So the scope of the present invention should be limited by claim described later.
Claims (21)
1, a kind of method for treating waste liquid, it is in order to handle a waste liquid that contains cupric ion and ferrous ion, and this method for treating waste liquid comprises:
This waste liquid is provided to a main reactor, and this main reactor comprises a discharge end and a feed end, and this discharge end is equiped with a protectiveness negative electrode, and this feed end is equiped with a phase antianode;
The iron powder of going back ortho states is provided to this main reactor and this waste liquid reacts to produce shot copper with being in fact; And
Separate this shot copper and reacted this waste liquid.
2, method for treating waste liquid as claimed in claim 1, wherein this protectiveness negative electrode with this mutually the voltage between antianode in fact between 30mV and 100mV.
3, method for treating waste liquid as claimed in claim 1, wherein step is provided is with the axial vertical tangential direction of this main reactor this waste liquid is provided to this main reactor in fact, to produce a venturi effect to this waste liquid.
4, method for treating waste liquid as claimed in claim 1, wherein this separating step is for utilizing this shot copper of magneticseparation and reacted this waste liquid.
5, method for treating waste liquid as claimed in claim 1 wherein, behind this separating step, also comprises with this shot copper of anergy liquid wash.
6, method for treating waste liquid as claimed in claim 5 wherein, behind this rinse step, also comprises this shot copper centrifuge dehydration.
7, a kind of method for treating waste liquid, it is in order to handle a waste liquid that contains cupric ion and ferrous ion, and this method for treating waste liquid comprises:
This waste liquid is provided to a main reactor;
The iron powder of going back ortho states is provided to this main reactor and this waste liquid reacts to produce shot copper with being in fact; And
Utilize this shot copper of magneticseparation and reacted this waste liquid.
8, method for treating waste liquid as claimed in claim 7, wherein step is provided is with the axial vertical tangential direction of this main reactor this waste liquid is provided to this main reactor in fact, to produce a venturi effect to this waste liquid.
9, method for treating waste liquid as claimed in claim 7, wherein this separating step separates this shot copper and reacted this waste liquid for utilizing a magnetic inclined conveyer belt.
10, method for treating waste liquid as claimed in claim 7 wherein, behind this separating step, also comprises with this shot copper of anergy liquid wash.
11, method for treating waste liquid as claimed in claim 10 wherein, behind this rinse step, also comprises this shot copper centrifuge dehydration.
12, a kind of treatment process of chloride series waste liquid comprises:
The chloride series waste liquid is provided to a main reactor, and this main reactor comprises a discharge end and a feed end, and this discharge end is equiped with a protectiveness negative electrode, and this feed end is equiped with a phase antianode;
The iron powder of going back ortho states is provided to this main reactor and this waste liquid reacts to produce shot copper with being in fact; And
Utilize this shot copper of magneticseparation and reacted this waste liquid.
13, a kind of chloride series liquid waste treating apparatus comprises:
One axially extended body, its inner reaction zone that limits, this body below offers a discharge port;
Monochlor(in)ate iron is the waste liquid gatherer, and it is in order to import waste liquid this reaction zone;
One iron powder gatherer, it imports this reaction zone in order to will be the iron powder of going back ortho states in fact, produces shot copper so that this waste liquid and this iron powder react in this reaction zone;
One protectiveness negative electrode, it is installed on the inwall of nearly discharge port one side of this body; And
One phase antianode, it is installed in and this protectiveness negative electrode not on the inner body wall of homonymy.
14, chloride series liquid waste treating apparatus as claimed in claim 13 also comprises a delivery line, and it is installed in this reaction zone, and this delivery line is in order to derive this body with reacted this waste liquid.
15, chloride series liquid waste treating apparatus as claimed in claim 13, wherein this body comprises a columned first part and a funnelform second section, and this waste liquid gatherer is for to import this waste liquid with this first part tangent in fact direction.
16, chloride series liquid waste treating apparatus as claimed in claim 13, wherein this protectiveness negative electrode with this mutually the voltage between the antianode in fact between 30mV and 100mV.
17, a kind of chloride series liquid waste treatment system comprises:
A kind of as each described chloride series liquid waste treating apparatus in the claim 13 to 16; And
One magnetic resolution device, it is installed in the below of this discharge port, and can utilize magneticseparation this reacted this waste liquid and this shot copper.
18, chloride series liquid waste treatment system as claimed in claim 17, wherein this magnetic resolution device comprises:
One endless apron, it accepts this reacted this waste liquid and this shot copper with a fixed angle of altitude;
A plurality of cylinders, it can drive this endless apron; And
One magnetic force generation unit, it can be in order to being adsorbed on this shot copper on this endless apron, and then separate this reacted this waste liquid and this shot copper.
19, chloride series liquid waste treatment system as claimed in claim 18, wherein this magnetic resolution device also comprises an angle adjuster, it can adjust the elevation angle that this endless apron is accepted this reacted this waste liquid and this shot copper.
20, chloride series liquid waste treatment system as claimed in claim 18, wherein this magnetic resolution device also comprises a scaler, the shot copper on this endless apron of its scraped.
21, chloride series liquid waste treatment system as claimed in claim 17 also comprises a flushing arrangement, and it can provide anergy liquid to wash this shot copper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101851311A CN101423280A (en) | 2007-10-30 | 2007-10-30 | Waste liquid treatment method, waste liquid treatment apparatus and waste liquid treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101851311A CN101423280A (en) | 2007-10-30 | 2007-10-30 | Waste liquid treatment method, waste liquid treatment apparatus and waste liquid treatment system |
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| CN101423280A true CN101423280A (en) | 2009-05-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106904701A (en) * | 2017-03-23 | 2017-06-30 | 湖北保灵华环保科技有限公司 | A kind of magnetic is reclaimed and sewage water treatment method |
| CN106966471A (en) * | 2017-03-23 | 2017-07-21 | 湖北保灵华环保科技有限公司 | A kind of magnetic separating device and separation method |
| CN107415558A (en) * | 2017-08-13 | 2017-12-01 | 安徽星光标识系统有限公司 | A kind of Sign Board etching machines |
| CN114369830A (en) * | 2021-12-23 | 2022-04-19 | 上海荣和环保科技有限公司 | Novel method and device for recovering etching solution through iron powder reduction reaction |
| WO2024025494A1 (en) * | 2022-07-25 | 2024-02-01 | Kuzey Test Anali̇z Ki̇mya Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Water treatment system |
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2007
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904701A (en) * | 2017-03-23 | 2017-06-30 | 湖北保灵华环保科技有限公司 | A kind of magnetic is reclaimed and sewage water treatment method |
| CN106966471A (en) * | 2017-03-23 | 2017-07-21 | 湖北保灵华环保科技有限公司 | A kind of magnetic separating device and separation method |
| CN107415558A (en) * | 2017-08-13 | 2017-12-01 | 安徽星光标识系统有限公司 | A kind of Sign Board etching machines |
| CN114369830A (en) * | 2021-12-23 | 2022-04-19 | 上海荣和环保科技有限公司 | Novel method and device for recovering etching solution through iron powder reduction reaction |
| WO2024025494A1 (en) * | 2022-07-25 | 2024-02-01 | Kuzey Test Anali̇z Ki̇mya Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Water treatment system |
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