CN206127030U - Contain chromium sewage treatment device - Google Patents
Contain chromium sewage treatment device Download PDFInfo
- Publication number
- CN206127030U CN206127030U CN201621178875.1U CN201621178875U CN206127030U CN 206127030 U CN206127030 U CN 206127030U CN 201621178875 U CN201621178875 U CN 201621178875U CN 206127030 U CN206127030 U CN 206127030U
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- CN
- China
- Prior art keywords
- sewage
- tank
- separating tank
- slag
- high concentration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a contain chromium sewage treatment device, including sewage adjustment tank, electrolysis trough and separating tank, sewage adjustment tank and the bottom of electrolysis trough communicate with each other, the upper portion lateral wall of sewage adjustment tank is equipped with the sewage import, the inside mixer that is equipped with of sewage adjustment tank, the electrolysis trough in the align to grid plate electrode is equipped with, the plate electrode respectively with DC power supply just, the negative pole zigzag connection, washing unit is equipped with to the bottom of electrolysis trough, the well upper portion of separating tank is equipped with the pivoted and is scraped sediment ware and collection sediment fill, the upper portion of separating tank, the lower part of scraping the sediment ware are equipped with row cinder notch, bottom that the collection sediment was fought is equipped with chromium mud and arranges mouthful, the middle part of separating tank is equipped with the clear water and arranges mouthful, sewage import department be equipped with automatic measurement control add acid plant, the beneficial effects of the utility model are that: ability greatly reduced sewage demulsification process's cost to can also show the concentration of reducing pollutants thing, improve the biodegradability of sewage, be favorable to very much follow -up biochemical treatment.
Description
Technical field
This utility model is related to technical field of sewage treatment equipment, more particularly to a kind of high concentration chrome wastewater processing equipment.
Background technology
In color painted steel strip processing industry, galvanized steel sheet surface used often does passivation damp-proof treatment, i.e., in galvanized sheet
One layer of liquid containing chromium passivating of surface-coated.When color painted steel strip is processed, surface of steel plate cleans surface with alkaline defatting agent
Dirt, can now wash down liquid containing chromium passivating, thereby produce the substantial amounts of sewage of defat containing chromium.
As the sewage of defat containing chromium had not only contained heavy metal Cr VI but also containing macromolecule organics such as some surfactants,
The sewage is than more intractable.Existing sewage disposal device needs addition 4-5 kind chemical agents etc., and which operates particularly complexity, and locates
Reason cost is too high.During sewage can significantly be removed while removing heavy metals cannot be met simultaneously again, the dual of content of organics will
Ask.
Utility model content
This utility model provides a kind of high concentration chrome wastewater processing equipment, and the processing cost of high concentration chrome wastewater can be greatly lowered,
And dirty Organic substance in water can also can be significantly removed while removing heavy metals are removed.
To solve above-mentioned technical problem, the embodiment of the present application provides a kind of high concentration chrome wastewater processing equipment, including sewage is adjusted
The bottom of section groove, electrolysis bath and separating tank, described sewage regulating tank and electrolysis bath communicates, and the upper portion side wall of sewage regulating tank sets
There is wastewater inlet, inside described sewage regulating tank, be provided with blender, described electrolysis bath is built with evenly distributed battery lead plate, electricity
Pole plate is cross-linked with DC source positive and negative electrode respectively, and the bottom of electrolysis bath is equipped with flusher, and the middle and upper part of separating tank is equipped with
The slag scraper and slag gathering hopper of rotation, the top of separating tank, the bottom of slag scraper are provided with slag-drip opening, and the bottom of slag gathering hopper is provided with chromium mud
Row's mouth, is provided with clear water row's mouth in the middle part of separating tank, automatic gauge control means for feeding acid is provided with described wastewater inlet.
Used as one of the present utility model preferred technical scheme, described blender at least includes one layer of stirrer paddle.
Used as one of the present utility model preferred technical scheme, described battery lead plate is at least four, connects unidirectional current
The battery lead plate of source positive and negative electrode is staggered setting.
Used as one of the present utility model preferred technical scheme, described slag scraper includes rotating mechanism and is arranged on turning
Scraping blade on motivation structure.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
The processing cost of high concentration chrome wastewater can be greatly lowered, and can significantly can also be removed while removing heavy metals are removed
Dirty Organic substance in water.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
Some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative labor
Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is overall structure diagram of the present utility model.
In figure, 1, wastewater inlet, 2, sewage regulating tank, 3, blender, 4, electrolysis bath, 5, flusher, 6, DC source,
7th, battery lead plate, 8, slag scraper, 9, slag gathering hopper, 10, slag-drip opening, 11, clear water row's mouth, 12, chromium mud row's mouth, 13, separating tank, 14, from
Dynamic measure control means for feeding acid.
Specific embodiment
This utility model provides a kind of high concentration chrome wastewater processing equipment, and the processing cost of high concentration chrome wastewater can be greatly lowered,
And dirty Organic substance in water can also can be significantly removed while removing heavy metals are removed.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail.
As shown in figure 1, a kind of high concentration chrome wastewater processing equipment described in the present embodiment, including sewage regulating tank 2, electrolysis bath 4
Communicate with the bottom of separating tank 13, described sewage regulating tank 2 and electrolysis bath 4, the upper portion side wall of sewage regulating tank 2 is provided with sewage
Import 1, is provided with blender 3 inside described sewage regulating tank 2, described electrolysis bath 4 is built with evenly distributed battery lead plate 7, electricity
Pole plate 7 is cross-linked with 6 positive and negative electrode of DC source respectively, and the bottom of electrolysis bath 4 is equipped with flusher 5, in separating tank 13 on
Equipped with the slag scraper 8 and slag gathering hopper 9 for rotating, the top of separating tank 13, the bottom of slag scraper 8 are provided with slag-drip opening 10, slag gathering hopper 9 in portion
Bottom be provided with chromium mud row's mouth 12, the middle part of separating tank 13 is provided with clear water row's mouth 11, meter automatically is provided with described wastewater inlet 1
Amount control means for feeding acid 14.
Wherein, in the present embodiment, described blender 3 at least includes one layer of stirrer paddle.
Wherein, in the present embodiment, described battery lead plate 7 is at least four, connects the electrode of 6 positive and negative electrode of DC source
Plate 7 is staggered setting.
Wherein, in the present embodiment, the scraping blade that described slag scraper 8 includes rotating mechanism and is arranged on rotating mechanism.
High concentration chrome wastewater enters into sewage regulating tank 2 by wastewater inlet 1, because high concentration chrome wastewater is strong basicity sewage PH≤12,
So needing automatic gauge control means for feeding acid 14 in sewage, add appropriate amount of acid to adjust sewage PH=4.5-5 and by blender 3
Mix homogeneously.
Regulating tank 2 and 4 bottom of electrolysis bath communicate.The high concentration chrome wastewater of mix homogeneously flows into electricity certainly from 2 bottom of regulating tank
4 bottom of solution groove.In electrolysis bath 4, equipped with evenly distributed battery lead plate 7（General steel plate）.Battery lead plate 7 respectively with DC source 6 just,
Negative pole is staggeredly connected.Emulsion sewage is flow through between two battery lead plates 7 respectively.Under unidirectional current electrolysis, with iron anode
Be dissolved, generate ferrous ion, ferrous ion is strong reductant, in acid condition, can by hexavalent chrome reduction into trivalent chromium,
With the carrying out of electrolytic process, substantial amounts of hydrion on negative electrode, is consumed, sewage is changed into alkalescence from faintly acid, and trivalent chromium is in alkali
Property under the conditions of generate chromic oxide gel flco.The hydrion that negative electrode is consumed constantly become hydrogen escape to be formed fine gas bubbles its upper
Chromic oxide gel flco will be generated to adhere on the water surface in floating process, from inflow separating tank 13, then will be scraped by slag scraper 8
In slag gathering hopper 9, excluded by slag-drip opening 10, from realization except chromium purpose.
It is in above-mentioned electrolysis bath 4 under all multiaction collaborations such as the action of a magnetic field, chemical action, physisorption, dirty containing chromium
Organic pollutant removal rate in water reaches 95% or so, and heavy metal removing rate reaches 99.9%, and total chromium reaches 99.8% except rate.In detail
Thin experimental data is as shown in the table：
4 bottom of electrolysis bath is equipped with flusher 5, and after operation a period of time, battery lead plate 7 can be attached to some pollutions above
Thing can affect treatment effect.For this, operation will be passed through 5 compressed air of flusher after a period of time, carry out air douche process.
Flco scum silica frost floats to the scum layer that the water surface forms floating with trickle bubble hydrogen, enters separating tank 13 from flowing into.Point
From 13 top of groove equipped with the slag scraper 8 and slag gathering hopper 9 for rotating, the chromium scum silica frost of floating is blown in slag gathering hopper 9 and from row by slag scraper 8
Cinder notch 10 is discharged.The small part flco of precipitation will be discharged from chromium mud row's mouth 12.Middle clean clear water will arrange 11 row of mouth from clear water
Go out.
The above, is only preferred embodiment of the present utility model, not makees any formal to this utility model
Restriction, although this utility model is disclosed above with preferred embodiment, but is not limited to this utility model, any ripe
Professional and technical personnel is known, in the range of without departing from technical solutions of the utility model, when in the technology using the disclosure above
Appearance is made a little change or is modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and modification above example made according to technical spirit of the present utility model, still
Belong in the range of technical solutions of the utility model.
Claims (4)
1. a kind of high concentration chrome wastewater processing equipment, it is characterised in that including sewage regulating tank（2）, electrolysis bath（4）And separating tank
（13）, described sewage regulating tank（2）And electrolysis bath（4）Bottom communicate, sewage regulating tank（2）Upper portion side wall be provided with sewage
Import（1）, described sewage regulating tank（2）Inside is provided with blender（3）, described electrolysis bath（4）Built with evenly distributed electricity
Pole plate（7）, battery lead plate（7）Respectively and DC source（6）Positive and negative electrode is cross-linked, electrolysis bath（4）Bottom be equipped with flusher
（5）, separating tank（13）Middle and upper part equipped with rotate slag scraper（8）And slag gathering hopper（9）, separating tank（13）Top, slag scraper
（8）Bottom be provided with slag-drip opening（10）, slag gathering hopper（9）Bottom be provided with chromium mud row mouth（12）, separating tank（13）Middle part be provided with
Clear water arranges mouth（11）, described wastewater inlet（1）Place is provided with automatic gauge control means for feeding acid（14）.
2. a kind of high concentration chrome wastewater processing equipment according to claim 1, it is characterised in that described blender（3）At least
Including one layer of stirrer paddle.
3. a kind of high concentration chrome wastewater processing equipment according to claim 1, it is characterised in that described battery lead plate（7）At least
For four, connect DC source（6）The battery lead plate of positive and negative electrode（7）Be staggered setting.
4. a kind of high concentration chrome wastewater processing equipment according to claim 1, it is characterised in that described slag scraper（8）Including
Rotating mechanism and the scraping blade being arranged on rotating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178875.1U CN206127030U (en) | 2016-11-03 | 2016-11-03 | Contain chromium sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621178875.1U CN206127030U (en) | 2016-11-03 | 2016-11-03 | Contain chromium sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206127030U true CN206127030U (en) | 2017-04-26 |
Family
ID=58578526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621178875.1U Expired - Fee Related CN206127030U (en) | 2016-11-03 | 2016-11-03 | Contain chromium sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206127030U (en) |
-
2016
- 2016-11-03 CN CN201621178875.1U patent/CN206127030U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20181103 |