CN103880118A - Wastewater treatment device for laboratory - Google Patents
Wastewater treatment device for laboratory Download PDFInfo
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- CN103880118A CN103880118A CN201410091902.0A CN201410091902A CN103880118A CN 103880118 A CN103880118 A CN 103880118A CN 201410091902 A CN201410091902 A CN 201410091902A CN 103880118 A CN103880118 A CN 103880118A
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Abstract
The invention provides a wastewater treatment device for a laboratory. The device comprises a water collecting tank, a treatment tank and an effluent tank which are sequentially communicated through a water distributing pipe, wherein the treatment tank is internally provided with an ion exchange separator which consists of a power supply, a positive plate and a negative plate electrically connected with poles of the power supply, respectively and a membrane stack arranged between the positive plate and the negative plate. The membrane stack is characterized by consisting of a membrane frame and a water separating plate which are sequentially arranged at an interval, wherein a cation exchange membrane and an anion exchange membrane are respectively clamped in the membrane frame so as to respectively form a cation exchange membrane frame and a anion exchange membrane frame, and the water separating plate is always arranged between the cation exchange membrane frame and the anion exchange membrane frame. The device provided by the invention dialyses and filters impure ions in wastewater from a solution through the cation and anion exchange membranes and treats the wastewater in the laboratory under the premise of not adding any medicaments, so that the process flow is simple, no medicaments are input, no secondary pollution is generated, and the effluent which is good in quality can be reused.
Description
Technical field
The present invention relates to a kind of wastewater treatment equipment, be specifically applicable to the sewage containing heavy metal ion for the treatment of lab discharge.
Background technology
Whom the mankind's life be unable to do without, and our life and water is closely bound up, and the sewage quantity that the mankind produce is also more and more many.In waste water, contain a large amount of objectionable impuritiess, as heavy metal ion, a large amount of nitrogen, phosphorus, potassium plasmas also can make water body produce eutrophication, there is wawter bloom phenomenon, the mankind's life and health in serious threat, is restricting the Sustainable development of society, has also destroyed the eubiosis simultaneously.
The waste water complicated component of discharging for the chemical laboratory of the departments such as each laboratory of middle school, colleges and universities, scientific research institution at present, except inorganics also has the microorganism such as heavy metal ion, bacterium and organism, according to the treatment process that adds medicament of routine, due to the complicated component of waste water, make the pharmacy variety of use various, when technical process complexity, secondary pollution be may bring, a kind of new treatment unit and treatment process needed for the sewage of this special property.
Summary of the invention
In order to solve the deficiency in background technology, the object of the invention is to overcome the defect of background technology, a kind of laboratory waste water treatment device is provided, under normal temperature and pressure conditions, operate, technical process is simple, does not need to add medicine, can not produce secondary pollution, the water quality of water outlet is good, recycling.
For achieving the above object, the technical solution used in the present invention is: a kind of laboratory waste water treatment device, comprise the water leg being communicated with successively by water distributing pipe, treatment trough and effluent trough, in described treatment trough, be provided with ion-exchange separator, described ion-exchange separator is by power supply, the positive plate and the negative plate that are electrically connected with described two poles respectively, and the membrane stack being arranged between described positive plate and negative plate forms, it is characterized in that: described membrane stack is made up of film frame and the water-stop sheet of alternate intervals setting successively, in described film frame, be folded with cationic exchange membrane and anion-exchange membrane, form respectively cationic exchange membrane frame and anion-exchange membrane frame, between described cationic exchange membrane frame and anion-exchange membrane frame, be always provided with a described water-stop sheet.
In a preferred embodiment of the present invention, further comprise that described membrane stack forms by being totally configured to two anion-exchange membrane frames of a group, a cationic exchange membrane frame, four water-stop sheets, described membrane stack has one group at least.
In a preferred embodiment of the present invention, further comprise that described membrane stack has two groups, the formation of every group is followed successively by water-stop sheet, anion-exchange membrane frame, water-stop sheet, cationic exchange membrane frame, water-stop sheet, anion-exchange membrane frame, water-stop sheet.
In a preferred embodiment of the present invention, further comprise between described anion-exchange membrane frame, water-stop sheet and cationic exchange membrane frame and form dense hydroecium, between described anion-exchange membrane frame and water-stop sheet, form freshwater room, described freshwater room is communicated with described effluent trough by described water distributing pipe.
In a preferred embodiment of the present invention, further comprise that the water outlet of described effluent trough is provided with strainer.
In a preferred embodiment of the present invention, further comprise that described power supply is direct supply.
Usefulness of the present invention is: a kind of laboratory waste water treatment device of the present invention, waste water in treatment trough is under the effect of extra electric field, foreign ion (namely negatively charged ion and positively charged ion) moves, zwitterion sees through respectively anion-exchange membrane, cationic exchange membrane enters dense hydroecium, taken away by dense water, being pooled to sewage draining exit discharges, the present invention filters out the foreign ion in waste water by anion and cation exchange membrane from aqueous solution dialysis, under the prerequisite of additional any medicament not, laboratory waste water is processed, under normal temperature and pressure conditions, operate, technical process is simple, do not need to add medicine, can not produce secondary pollution, the water quality of water outlet is good, recycling.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation of the preferred embodiment of the present invention;
Fig. 2 is the structural representation of the ion-exchange separator of the preferred embodiment of the present invention.
In figure: 2, water leg, 4, treatment trough, 6, effluent trough, 8, power supply, 10, positive plate, 12, negative plate, 14, film frame, 16, water-stop sheet, 20, cationic exchange membrane frame, 24, anion-exchange membrane frame, 26, dense hydroecium, 28, freshwater room, 30, strainer.
Embodiment
In order to make those skilled in the art person understand better the present invention program, and above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the present invention is further detailed explanation.
As shown in Figure 1-2, a kind of laboratory waste water treatment device, comprise the water leg 2 being communicated with successively by water distributing pipe, treatment trough 4 and effluent trough 6, in treatment trough 4, be provided with ion-exchange separator, ion-exchange separator is by power supply 8, optimization power supply 8 is direct supply, the positive plate 10 and the negative plate 12 that are electrically connected with power supply 8 the two poles of the earth respectively, and the membrane stack being arranged between positive plate 10 and negative plate 12 forms, membrane stack is made up of film frame 14 and the water-stop sheet 16 of alternate intervals setting successively, in film frame 14, be folded with cationic exchange membrane and anion-exchange membrane, form respectively cationic exchange membrane frame 20 and anion-exchange membrane frame 24, between cationic exchange membrane frame 20 and anion-exchange membrane frame 24, be always provided with a water-stop sheet 16.
Cationic exchange membrane and anion-exchange membrane are respectively positively charged ion, negatively charged ion to be had to the film of selecting the macromolecular material of perviousness to make, on market, can directly buy and obtain.Cationic exchange membrane has and selects the principle of perviousness to be positively charged ion: anode membrane is electronegative, outside film, pass through electric field action, positively charged positively charged ion can pass through anode membrane, and negatively charged ion can not pass through because the same sex repels, so there is selection perviousness, in like manner, anion-exchange membrane has selection perviousness to negatively charged ion.
Concrete, described membrane stack by being totally configured to two anion-exchange membrane frames 24 of a group, cationic exchange membrane frame 20, four water-stop sheets 16 form, described membrane stack has one group at least, as the preferred embodiments of the present invention, described membrane stack has two groups, is certainly not limited to two groups, can decide the group number of placing membrane stack according to the size of waste water intermediate ion concentration, concentration is larger, and the group number of membrane stack is more, to reach final water outlet requirement.The formation of every group is followed successively by water-stop sheet 16, anion-exchange membrane frame 24, water-stop sheet 16, cationic exchange membrane frame 20, water-stop sheet 16, anion-exchange membrane frame 24, water-stop sheet 16, wherein, between described anion-exchange membrane frame 24, water-stop sheet 16 and cationic exchange membrane frame 20, form dense hydroecium 26, between described anion-exchange membrane frame 24 and water-stop sheet 16, form freshwater room 28, described freshwater room 28 is communicated with effluent trough 6 by water distributing pipe.It is freshwater room 28 that this frame mode between membrane stack makes both sides, centre is dense hydroecium 26, negatively charged ion anode direction in freshwater room 28 move and pass through anion-exchange membrane and by the cationic exchange membrane detention in dense hydroecium 26 in dense hydroecium 26, solution in freshwater room 28 can be desalinated thus, in dense hydroecium 26, the concentration of solution increases, along with the continuous increase of concentration, the foreign ion intercepting in dense hydroecium 26 is discharged from the sewage draining exit of dense hydroecium 26, reaches the object of dialysis impurity screening ion.The frame mode of the preferred membrane stack of the present invention, has advantages of and raises the efficiency, and is specially, and the foreign ion of both sides is gathered toward centre from both direction, and water purification is discharged from both sides, has shortened the time of ion migration, has improved efficiency.
As a further improvement on the present invention, the water outlet of described effluent trough 6 is provided with strainer 30, further water is filtered, and improves water purification degree.
Therefore, the present invention filters out the dialysis from solution of the foreign ion in waste water by anion and cation exchange membrane, under the prerequisite of additional any medicament not, laboratory waste water is processed, under normal temperature and pressure conditions, operate, technical process is simple, does not need to add medicine, can not produce secondary pollution, the water quality of water outlet is good, recycling.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.
Claims (6)
1. a laboratory waste water treatment device, comprise the water leg being communicated with successively by water distributing pipe, treatment trough and effluent trough, in described treatment trough, be provided with ion-exchange separator, described ion-exchange separator is by power supply, the positive plate and the negative plate that are electrically connected with described two poles respectively, and the membrane stack being arranged between described positive plate and negative plate forms, it is characterized in that: described membrane stack is made up of film frame and the water-stop sheet of alternate intervals setting successively, in described film frame, be folded with cationic exchange membrane and anion-exchange membrane, form respectively cationic exchange membrane frame and anion-exchange membrane frame, between described cationic exchange membrane frame and anion-exchange membrane frame, be always provided with a described water-stop sheet.
2. a kind of laboratory waste water treatment device according to claim 1, is characterized in that: described membrane stack forms by being totally configured to two anion-exchange membrane frames of a group, a cationic exchange membrane frame, four water-stop sheets, and described membrane stack has one group at least.
3. a kind of laboratory waste water treatment device according to claim 2, it is characterized in that: described membrane stack has two groups, the formation of every group is followed successively by water-stop sheet, anion-exchange membrane frame, water-stop sheet, cationic exchange membrane frame, water-stop sheet, anion-exchange membrane frame, water-stop sheet.
4. a kind of laboratory waste water treatment device according to claim 3, it is characterized in that: between described anion-exchange membrane frame, water-stop sheet and cationic exchange membrane frame, form dense hydroecium, between described anion-exchange membrane frame and water-stop sheet, form freshwater room, described freshwater room is communicated with described effluent trough by described water distributing pipe.
5. a kind of laboratory waste water treatment device according to claim 4, is characterized in that: the water outlet of described effluent trough is provided with strainer.
6. a kind of laboratory waste water treatment device according to claim 1, is characterized in that: described power supply is direct supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091902.0A CN103880118A (en) | 2014-03-13 | 2014-03-13 | Wastewater treatment device for laboratory |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091902.0A CN103880118A (en) | 2014-03-13 | 2014-03-13 | Wastewater treatment device for laboratory |
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| CN103880118A true CN103880118A (en) | 2014-06-25 |
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| CN201410091902.0A Pending CN103880118A (en) | 2014-03-13 | 2014-03-13 | Wastewater treatment device for laboratory |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673143A (en) * | 2017-01-24 | 2017-05-17 | 苏州新纽顿环保科技有限公司 | Electrodialysis apparatus and filter device |
| CN107447233A (en) * | 2017-09-21 | 2017-12-08 | 宁波市海智材料产业创新研究院 | The device and method that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
| CN113772773A (en) * | 2021-10-14 | 2021-12-10 | 中国矿业大学 | Method and device for purifying heavy metal sewage gradually in radial direction by coupling of heat, electricity and membrane |
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| JPH0564786A (en) * | 1991-09-05 | 1993-03-19 | Nippon Rensui Kk | Production of pure water |
| EP1232997A1 (en) * | 2001-02-15 | 2002-08-21 | Fuji Photo Film Co., Ltd. | Method of treating an acid treatment solution, device for treating the solution, and method of fabricating a support for a planographic printing plate |
| JP2002263654A (en) * | 2001-03-08 | 2002-09-17 | Matsushita Electric Ind Co Ltd | Electrochemical water treating unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106673143A (en) * | 2017-01-24 | 2017-05-17 | 苏州新纽顿环保科技有限公司 | Electrodialysis apparatus and filter device |
| CN106673143B (en) * | 2017-01-24 | 2023-08-25 | 苏州新纽顿环保科技有限公司 | Electrodialysis device and filtration equipment |
| CN107447233A (en) * | 2017-09-21 | 2017-12-08 | 宁波市海智材料产业创新研究院 | The device and method that various heavy separates and recovers simultaneously in a kind of electroplating wastewater |
| CN107447233B (en) * | 2017-09-21 | 2023-06-09 | 宁波市海智材料产业创新研究院 | Device and method for simultaneously separating and recovering multiple heavy metals in electroplating wastewater |
| CN113772773A (en) * | 2021-10-14 | 2021-12-10 | 中国矿业大学 | Method and device for purifying heavy metal sewage gradually in radial direction by coupling of heat, electricity and membrane |
| CN113772773B (en) * | 2021-10-14 | 2022-06-28 | 中国矿业大学 | Method and device for purifying heavy metal sewage gradually in radial direction by coupling of heat, electricity and membrane |
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Application publication date: 20140625 |