CN201678547U - Membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device - Google Patents
Membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device Download PDFInfo
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- CN201678547U CN201678547U CN2010201852699U CN201020185269U CN201678547U CN 201678547 U CN201678547 U CN 201678547U CN 2010201852699 U CN2010201852699 U CN 2010201852699U CN 201020185269 U CN201020185269 U CN 201020185269U CN 201678547 U CN201678547 U CN 201678547U
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- electroplating wastewater
- membrane separation
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Abstract
The utility model belongs to the electroplating wastewater treatment technical field and relates to a membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device which is characterized in that: an electrolytic bath is connected with a membrane separation recycling bath by an overflow pipe, a backflow discharge pipe with a filter membrane on the end part is arranged in the upper part of the membrane separation recycling bath, a recycling pipe valve is arranged at the bottom of the membrane separation recycling bath, the backflow discharge pipe with the filter membrane on the end part is communicated with an electroplating wastewater pipeline by a vacuum pump for draining or discharging the wastewater to the electrolytic bath for second treatment. An air-blowing pipe is arranged under the filter membrane end part of the backflow discharging pipe. The utility model has the beneficial effects that: cyanide, metallic elements and partial organic matter conduct electrolysis and chemical decomposition, meanwhile the fine metallic particles dissolved out in transformed oxide or simple substance state are recycled by a membrane filter separator, so the concentration of the metallic ion in the electroplating wastewater can meet the discharge standard safely, efficiently and quickly.
Description
Technical field
The utility model belongs to the electroplating waste water treatment technology field, relates to the electrolyzer that electrolytic process is handled electroplating wastewater, refers more particularly to a kind of membrane sepn and reclaims the electroplating waste processing equipment that makes up with electrolyzer.
Background technology
The waste water composition that produces in the electroplating industry production process, content is relevant with electroplating technology with electroplating, usually contain precious metal ions such as heavy metal ion such as copper, nickel and some gold and silver in the electroplating wastewater, also contain the prussiate of severe toxicity etc. sometimes, or contain the organic composition (COD) of decomposition in distress.When handling electroplating wastewater with electrolytic process now, often can not reach the emission standard of satisfied compliance with environmental protection requirements, also must be transported to follow-up equipment to waste water through electrolysis treatment, again with pharmaceutical chemicalss such as clorox, after cyanide oxidation being become innoxious substances such as carbonic acid gas and nitrogen, just can reach emission standard; Heavy metal of separating out during for electrolysis treatment and precious metal ion generally also will adopt the method for chemical precipitation, make these objectionable constituent isolate water body, reach associated metal ionic emission standard, but the metal recovery after chemical precipitation is worth reduction.
The utility model content:
The purpose of this utility model: provide a kind of membrane sepn to reclaim and electrolyzer combination electroplating waste processing equipment, in the prussiate and partial organic substances in the electrolysis treatment electroplating wastewater, reclaim expensive, heavy metal with membrane separating method, make electroplating wastewater can reach emission standard safely, efficiently, fast.
For achieving the above object, the technical solution adopted in the utility model is: membrane sepn reclaims and electrolyzer combination electroplating waste processing equipment, comprise electrolyzer and place described electrolyzer interior electrode and electrolytic solution, it is characterized in that: described electrolyzer is connected by upflow tube with the membrane sepn accumulator tank, the delivery pipe that backflows of built-in end, described membrane sepn accumulator tank top band filter membrane, described membrane sepn accumulator tank bottom is equipped with recovery pipe valve, the described delivery pipe that backflows communicates with the electroplating wastewater pipeline by vacuum pump, or discharges or return electrolyzer.
The below of the band filter membrane end of the described delivery pipe that backflows is equipped with aspiration tube.
Positively effect of the present utility model is: the prussiate in the electrolyzer, metal ingredient and partial organic substances are carried out in electrolysis and the decomposition in electrolyzer, changing into the trickle metallic particles that oxide compound or simple substance state are separated out, reclaim by the membrane filtration separator, make the concentration safety of metal ion in the electroplating wastewater, reach emission standard efficiently, fast.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model structural representation.
Among the figure, the 1-electrolyzer; The 2-upflow tube; 3-membrane sepn accumulator tank; The 4-delivery pipe that backflows; The 5-filter membrane; The 6-aspiration tube; The 7-recovery pipe valve; The 8-vacuum pump.
Embodiment
Fig. 1 is the utility model structural representation, as shown in the figure, membrane sepn reclaims and electrolyzer combination electroplating waste processing equipment, comprise electrolyzer 1 and place electrode and electrolytic solution in the described electrolyzer 1, it is characterized in that: described electrolyzer 1 is connected by upflow tube 2 with membrane sepn accumulator tank 3, the delivery pipe 4 that backflows of built-in end, described membrane sepn accumulator tank 3 tops band filter membrane 5, described membrane sepn accumulator tank 3 bottoms are equipped with recovery pipe valve 7, the delivery pipe 4 that backflows of described end band filter membrane 5 communicates with the electroplating wastewater pipeline by vacuum pump 8, or discharges or return electrolyzer and handle.
The below of band filter membrane 5 ends of the described delivery pipe 4 that backflows is equipped with aspiration tube 6.
When using the utility model to handle electroplating wastewater, electrolyzer 1 adopts corrosion-resistant efficiently (platinum group) electrode, by controlling electrolytic time and intensity, make that cyanide ion decomposes below the 0.10ppm in the electrolytic solution, metal ion can change into oxide compound or simple substance state and takes off surely and separate out simultaneously; The electrolytic solution that electrolyzer 1 contains metal particle enters membrane sepn accumulator tank 3 by upflow tube 2.Filter membrane 5 adopts external pressure submergence separate mode separating metal particulate and heavy metal ion, metal particle and heavy metal ion in membrane sepn accumulator tank 3, concentrate, be enriched in after after filtration membrane sepn accumulator tank 3 below, membrane sepn accumulator tank 3 interior electroplating wastewaters aspirate through the delivery pipe 4 usefulness vacuum pumps 8 that backflow and are transported to follow-up equipment continuation processing or discharging, then carry above emission standard as metal concentration to be back to the processing of electrolyzer 1 internal recycle.
Filter membrane 5 is micro-filtration or ultra-filtration membrane, and selecting for use of aperture can determine that filter membrane 5 should guarantee that the filtration rejection of metal particle is more than 90% by filter paper test.
Can improve to filter by aspiration tube 6 usefulness blast aeration methods and hold back efficient, stop aeration, leave standstill after 30 minutes and open recovery pipe valve 7, regularly the metal of enrichment in the membrane sepn accumulator tank 3 be collected.
Claims (2)
1. membrane sepn reclaims and electrolyzer combination electroplating waste processing equipment, it is characterized in that: electrolyzer (1) is connected by upflow tube (2) with membrane sepn accumulator tank (3), the delivery pipe that backflows (4) of described membrane sepn accumulator tank (3) top built-in end band filter membrane (5), described membrane sepn accumulator tank (3) bottom is equipped with recovery pipe valve (7), and the described delivery pipe that backflows (4) communicates with the electroplating wastewater pipeline by vacuum pump (8) and discharges or return electrolyzer (1).
2. reclaim and electrolyzer combination electroplating waste processing equipment according to the described membrane sepn of claim 1, it is characterized in that: the below of band filter membrane (5) end of the described delivery pipe that backflows (4) is equipped with aspiration tube (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201852699U CN201678547U (en) | 2010-05-06 | 2010-05-06 | Membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201852699U CN201678547U (en) | 2010-05-06 | 2010-05-06 | Membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201678547U true CN201678547U (en) | 2010-12-22 |
Family
ID=43343600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201852699U Expired - Fee Related CN201678547U (en) | 2010-05-06 | 2010-05-06 | Membrane separation recycling and electrolytic bath combined electroplating wastewater treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201678547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975460A (en) * | 2018-07-02 | 2018-12-11 | 武汉工程大学 | A kind of electro-chemical water processing system and method |
-
2010
- 2010-05-06 CN CN2010201852699U patent/CN201678547U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108975460A (en) * | 2018-07-02 | 2018-12-11 | 武汉工程大学 | A kind of electro-chemical water processing system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |