CN208617574U - A kind of Cr VI sewage disposal system - Google Patents
A kind of Cr VI sewage disposal system Download PDFInfo
- Publication number
- CN208617574U CN208617574U CN201820201214.9U CN201820201214U CN208617574U CN 208617574 U CN208617574 U CN 208617574U CN 201820201214 U CN201820201214 U CN 201820201214U CN 208617574 U CN208617574 U CN 208617574U
- Authority
- CN
- China
- Prior art keywords
- sewage disposal
- plc control
- disposal system
- control device
- electric flocculation
- Prior art date
- 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.)
- Active
Links
Abstract
The utility model relates to a kind of Cr VI sewage disposal systems, including the first chemicals dosing plant, the second chemicals dosing plant and pass through the sequentially connected conditioning tank of pipeline, electric flocculation device, intermediate pool, inclined plate sedimentation pond, first chemicals dosing plant is connected with conditioning tank, second chemicals dosing plant is connected with intermediate pool, and the conditioning tank and intermediate pool are additionally provided with agitating device.The utility model solves that conventional chemical methods process flows is long, takes up a large area, the problems such as sludge quantity is big, at high cost, and treated water completely can qualified discharge, meet environmental requirement.
Description
Technical field
The utility model relates to a kind of sewage disposal system, especially a kind of Cr VI sewage disposal system.
Background technique
Cr VI is mainly derived from electrodeposited chromium production waste.Chromium plating sewage has chromium concn high (1000mg/l), and coloration is deep
The features such as, wherein content of 6-valence Cr ions is usually higher, is not suitable for direct alkaline chemical precipitation, needs to launch a large amount of reducing agents, at flocculant
The problems such as managing, causing dosage big high, sludge quantity is big, process flow is long.Electric flocculation handles Cr VI sewage without adding reduction
Agent, the self-produced reducing agent of electrolytic process, flocculant, can effectively deal with sewage containing Cr VI, greatly reduce operating cost, and water outlet can be straight
Connect qualified discharge.
Domestic processing high concentration chrome wastewater main method is conventional chemical methods, technical process are as follows: ferrous reduction+flocculation at present
The processing of agent flocculation technique.It is investigated according to Domestic Plating factory, there are sludge quantities for the perfect high concentration chrome wastewater treatment process in part greatly, technique
Long flow path, occupied area be wide, total high situation of processing cost, and partly imperfect sewage treatment process, which is usually discharged to stablize, to be reached
Mark situation.Conventional chemical methods handle sewage process with the increase of dosage, and water outlet salt content is caused to increase.
Electric flocculation processing high concentration chrome wastewater only needs to launch a small amount of medicament, and electrolytic process generates hydroxide ion, not will cause
Salt content is discharged to increase.The fluctuation of parcel plating sewage effluent quality is larger, and it is strong that electric flocculation handles high concentration chrome wastewater impact resistance.
Summary of the invention
To be solved in the utility model is that sludge quantity is big, process flow is long in prior art sewage disposal process, land occupation
Area is wide, total processing cost is high and the high technical problem of water unstable, water outlet salt content out.
The utility model provides a kind of Cr VI sewage disposal system, including the first chemicals dosing plant, the second chemicals dosing plant
And by the sequentially connected conditioning tank of pipeline, electric flocculation device, intermediate pool, inclined plate sedimentation pond, first chemicals dosing plant and
Conditioning tank is connected, and second chemicals dosing plant is connected with intermediate pool, and the conditioning tank and intermediate pool are additionally provided with agitating device.
In the present invention, raw water enters conditioning tank, quenched to raw water by chemicals dosing plant, enters electric wadding by quenched sewage
Solidifying device, electric flocculation device handle electrolytic sewage redox, and the water outlet of electric flocculation device enters intermediate pool, and intermediate pool is equipped with
Dosing agitating device, sewage form big flocculating body in intermediate pool, and intermediate pool is connect with inclined plate sedimentation pond by pipeline, intermediate pool
Water outlet enters inclined plate sedimentation pond, and clear liquid overflows in inclined plate sedimentation pond to be discharged.
Further, the Cr VI sewage disposal system is additionally provided with PLC control device, first chemicals dosing plant,
Two chemicals dosing plants pass through electric line respectively and PLC control device control dosage, the electricity wadding are connected and passed through with PLC control device
Solidifying device is connected by electric line with PLC control device.
The first chemicals dosing plant of the present invention, the second chemicals dosing plant, electric flocculation device all pass through PLC control device and automatically control.
Further, there are difference in height, the water outlet of electric flocculation device flows into intermediate pool certainly for the electric flocculation device and intermediate pool.
Further, elevator pump, online PH meter, online conductivity meter are equipped between the conditioning tank and electric flocculation device,
The elevator pump, online PH meter, online conductivity meter are connected by electric line with PLC control device.
It is equipped with elevator pump, online pH meter, online conductivity meter between conditioning tank and electric flocculation device, online pH can be passed through
It counts, conductivity meter monitoring conditioning tank water outlet, feedback enters electric flocculation to PLC system automatic adjustment dosage, automatic control sewage
Device.
Further, the electric flocculation device water inlet is equipped with the first electrically operated valve, flowmeter, first motor-driven valve
Door, flowmeter are connected by electric line with PLC control device.
When promoting pump work, the numeric feedback that flow measurement is obtained is adjusted to PLC control device by PLC control device automatically
The first electrically operated valve is saved, flow is adjusted.
Further, the electric flocculation device is configured with cleaning dosing pump, cleaning device, the electric flocculation device water inlet
Setting bypasses and is sequentially connected the second electrically operated valve, cleaning dosing pump, cleaning device, the water outlet and electric flocculation pipe of cleaning device
Road connection, second electrically operated valve, cleaning dosing pump, cleaning device are connected with PLC control device by electric line respectively.
Electric flocculation device may be implemented to clean automatically, when needing to clean, is controlled by PLC and closes electric flocculation Inlet and outlet water valve,
The second electrically operated valve, cleaning dosing pump, cleaning device are opened, realizes automatic cyclic cleaning, after cleaning, it is electronic to close second
Valve.
Further, be equipped with plunger pump between the intermediate pool and inclined plate sedimentation pond, the plunger pump by electric line and
The connection of PLC control device.
Intermediate pool water outlet contains great quantity of floc, selects plunger pump that can prevent wadding body from being pumped and smashes.
It further, further include sludge pump, the sludge pump is connected by electric line with PLC control device.
Sludge is discharged by sludge pump when needing to discharge sludge.
It further, further include sludge filter press, the sludge filter press is connected with sludge pump.
Further, sewage bypass, institute are additionally provided between the water inlet of the conditioning tank and the water outlet of electric flocculation device
It states sewage bypass and is equipped with third electrically operated valve, the third electrically operated valve is connected by electric line with PLC control device.
The utility model compared with the existing technology has the following advantages that and effect:
1, process flow is short, structurally reasonable, and occupied area is small；
2, processing cost is low；
3, sludge quantity is small；
4, water outlet salt content is low.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of Cr VI sewage disposal system of the utility model.
Mark explanation:
The online conductivity meter 6- elevator pump of the 1- conditioning tank 2- online pH meter 5- of the first chemicals dosing plant 3- agitating device 4-
7- the first electrically operated valve 8- electric flocculation device 9- cleaning device, 10-PLC control device 11- intermediate pool the second dosing of 12- dress
Set 13- plunger pump 14- inclined plate sedimentation pond 15- sludge pump 16- the second electrically operated valve 17- cleaning dosing pump 18- third electricity
The bypass of movable valve 19- sewage.
Specific embodiment
This patent is described in detail combined with specific embodiments below:
As shown in Figure 1, a kind of Cr VI sewage disposal system of the utility model is mainly by conditioning tank 1, the first chemicals dosing plant
2, the second chemicals dosing plant 12, agitating device 3, elevator pump 6, online pH meter 4, online conductivity meter 5, the first electrically operated valve 7, second
Electrically operated valve 16, third electrically operated valve 18, electric flocculation device 8, cleaning device 9, PLC control device 10, intermediate pool 11, inclined plate are heavy
The compositions such as pond 14, sludge pump 15, cleaning dosing pump 17, sewage bypass 19 drop.
Sewage is promoted to conditioning tank by source pond, is stirred by the first chemicals dosing plant, is discharged by online pH meter, conductivity meter
On-line monitoring, signal feed back to PLC control device, and PLC control device adjusts the first chemicals dosing plant dosing speed.
Conditioning tank sewage is promoted to electric flocculation device by elevator pump, and flow can be monitored by flowmeter, PLC control dress
It sets control and promotes switch pump, when liquid level is lower in conditioning tank, close elevator pump.
Sewage enters electric flocculation device, and cell reaction occurs inside electric flocculation device, and following process mainly occurs:
1, oxidation reaction, electrolysis water process generate a large amount of hydroxyl radical free radical, have extremely strong oxidisability, can aoxidize sewage inner part
The pollutants such as COD, ammonia nitrogen；2, it is electrolysed iron anode, electric current releases ferrous ion by electrode plate, and ferrous ion has reduction
Property, Cr VI in raw sewage can be gone back, precipitable trivalent chromium is become；3, self-produced hydroxyl, electrolysis water process can generate largely
Hydroxide ion can be used for precipitating trivalent chromic ion, and flocculant is generated in conjunction with ferrous iron/ferric ion in water.Electric flocculation is anti-
Answer the reaction occurred inside device that can effectively go back Cr VI in raw sewage, and the pollutants such as oxidation removal part COD, ammonia nitrogen,
Self-produced flocculant adds flocculant, self-produced hydroxide ion without outside again, and outside only needs to add a small amount of lye, reduces water outlet and contains
Salt amount.
Electric flocculation device impact resistance is stronger, and operating parameter is determined according to sewage quality, may be set to fixed value.
The water outlet gravity flow of electric flocculation device enters intermediate pool, and intermediate pool has dosing agitating device, and sewage enters intermediate pool band
There are a large amount of flocculants, it is only necessary to which adding a certain amount of PAM (polyacrylamide) can make wadding body quickly become larger.Second chemicals dosing plant with
PLC control system connection, controls the start and stop of dosage and agitating device.
Intermediate pool water outlet connect with plunger pump and is pumped into inclined plate sedimentation pond, and plunger pump will not smash intermediate pool water outlet wadding body,
Sewage is effectively separated by solid-liquid separation behind inclined plate sedimentation pond, and clear liquid overflows the water outlet of inclined plate sedimentation pond, and sludge sinks to inclined plate sedimentation bottom of pond portion,
Filter press is pumped by sludge pump, PLC control device controls sludge pump.
Example operation calculates:
Electric flocculation system handles high concentration chrome wastewater containing 600mg/l, ton in a kind of Cr VI sewage disposal system of the utility model
Water running electricity cost is about 1.5KW/m3, and electrode plate consumes 0.3kg/m3, produces sludge quantity 0.6-0.7kg/m3.Electric flocculation anti-impact
It is strong to hit ability, sewage quality fluctuates in a certain range, on water outlet without influence；Cr VI sewage disposal system reduces dosage,
Reduce water outlet salt content；Process flow is short, and occupied area is smaller；Stable operation can be achieved unattended substantially.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different.All equivalent or simple changes done according to structure, feature and principle described in the concept of the patent of the utility model,
It is included in the protection scope of the utility model patent.Those skilled in the art of the present invention can be to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, without departing from the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (10)
1. a kind of Cr VI sewage disposal system, which is characterized in that including the first chemicals dosing plant, the second chemicals dosing plant and pass through
The sequentially connected conditioning tank of pipeline, electric flocculation device, intermediate pool, inclined plate sedimentation pond, first chemicals dosing plant and conditioning tank phase
Even, second chemicals dosing plant is connected with intermediate pool, and the conditioning tank and intermediate pool are additionally provided with agitating device.
2. Cr VI sewage disposal system according to claim 1, which is characterized in that the Cr VI sewage disposal system
It is additionally provided with PLC control device, first chemicals dosing plant, the second chemicals dosing plant pass through electric line respectively and PLC control device connects
It connects and passes through PLC control device control dosage, the electric flocculation device is connected by electric line with PLC control device.
3. Cr VI sewage disposal system according to claim 2, which is characterized in that the electric flocculation device and intermediate pool
There are difference in height, the water outlet of electric flocculation device flows into intermediate pool certainly.
4. Cr VI sewage disposal system according to claim 3, which is characterized in that the conditioning tank and electric flocculation device
Between be equipped with elevator pump, online PH meter, online conductivity meter, the elevator pump, online PH meter, online conductivity meter pass through electric wire
Road is connected with PLC control device.
5. Cr VI sewage disposal system according to claim 4, which is characterized in that the electric flocculation device water inlet is set
There are the first electrically operated valve, flowmeter, first electrically operated valve, flowmeter are connected by electric line with PLC control device.
6. Cr VI sewage disposal system according to claim 5, which is characterized in that the electric flocculation device is configured with clear
Dosing pump, cleaning device are washed, the electric flocculation device water inlet setting bypasses and be sequentially connected the second electrically operated valve, cleaning dosing
Pump, cleaning device, the water outlet and electric flocculation piping connection of cleaning device, second electrically operated valve, cleaning dosing pump, cleaning
Device is connected with PLC control device by electric line respectively.
7. Cr VI sewage disposal system according to claim 6, which is characterized in that the intermediate pool and inclined plate sedimentation pond
Between be equipped with plunger pump, the plunger pump is connected with PLC control device by electric line.
8. Cr VI sewage disposal system according to claim 7, which is characterized in that it further include sludge pump, the sludge
Pump is connected by electric line with PLC control device.
9. Cr VI sewage disposal system according to claim 8, which is characterized in that it further include sludge filter press, it is described
Sludge filter press is connected with sludge pump.
10. -9 described in any item Cr VI sewage disposal systems according to claim 1, which is characterized in that the conditioning tank
Sewage bypass is additionally provided between water inlet and the water outlet of electric flocculation device, the sewage bypass is equipped with third electrically operated valve, institute
Third electrically operated valve is stated to connect by electric line with PLC control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201214.9U CN208617574U (en) | 2018-02-06 | 2018-02-06 | A kind of Cr VI sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201214.9U CN208617574U (en) | 2018-02-06 | 2018-02-06 | A kind of Cr VI sewage disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208617574U true CN208617574U (en) | 2019-03-19 |
Family
ID=65692859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820201214.9U Active CN208617574U (en) | 2018-02-06 | 2018-02-06 | A kind of Cr VI sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208617574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249642A (en) * | 2018-02-06 | 2018-07-06 | 杭州英普环境技术股份有限公司 | A kind of Cr VI sewage disposal system |
-
2018
- 2018-02-06 CN CN201820201214.9U patent/CN208617574U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249642A (en) * | 2018-02-06 | 2018-07-06 | 杭州英普环境技术股份有限公司 | A kind of Cr VI sewage disposal system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101234828B (en) | Integrated electroplating treatment method for waste water | |
| CN203904113U (en) | Classified treatment equipment for sewage | |
| CN107902807A (en) | A kind of electroplating waste-water reutilizing processing method | |
| CN102211828B (en) | Method for sludge reduction for cold rolling pickling wastewater in steel industry | |
| CN105439326A (en) | Treatment method of chemical nickel-plating wastewater | |
| CN201634531U (en) | Electroplating wastewater diversion treatment standard emission system | |
| CN101456637A (en) | Treatment process and method of electroplating wastewater | |
| CN204824453U (en) | Desulfurization pretreatment of water device that gives up | |
| CN104671499B (en) | Smelt composite wastewater advanced treatment separate-recycling method | |
| CN101337747A (en) | Automation control electroplating waste processing process | |
| CN102757147A (en) | Electroplating wastewater comprehensive treatment process | |
| CN101633536A (en) | Method for treating small-size electroplating waste water | |
| CN102153218B (en) | Device and process for treating chromate waste water | |
| CN203307148U (en) | Comprehensive treatment system of industrial electroplating wastewater | |
| CN208617574U (en) | A kind of Cr VI sewage disposal system | |
| CN108164031B (en) | Treatment method of potassium chloride cyanide-free cadmium plating wastewater | |
| CN201962164U (en) | System for treating drilling sludge slurry | |
| CN103232104B (en) | Treatment method of electroplating wastewater containing cyanogen/zinc | |
| CN208869412U (en) | The processing system of chromate waste water | |
| CN113402050A (en) | Domestic waste incineration fly ash washing liquid pretreatment system | |
| CN108249642A (en) | A kind of Cr VI sewage disposal system | |
| CN111995102A (en) | Treatment method of electroplating wastewater containing complex nickel | |
| CN108439670A (en) | A kind of waste water zero-emission device and technique | |
| CN210855595U (en) | Treatment facility of circuit board waste water | |
| CN208577561U (en) | A kind of mining smelting wastewater exception water quality emergency treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |