CN207511891U - A kind of cyanide-containing waste water treatment system - Google Patents
A kind of cyanide-containing waste water treatment system Download PDFInfo
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- CN207511891U CN207511891U CN201721368971.7U CN201721368971U CN207511891U CN 207511891 U CN207511891 U CN 207511891U CN 201721368971 U CN201721368971 U CN 201721368971U CN 207511891 U CN207511891 U CN 207511891U
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Abstract
The utility model is suitable for technical field of waste water processing, provides a kind of cyanide-containing waste water treatment system.Compared with prior art, advantageous effect is the utility model：The cyanide-containing waste water treatment system of the utility model, cyanide wastewater are introduced into cyanide wastewater and adjust bucket adjusting acid-base value, enter back into circulating slot and add catalyst, are electrolysed subsequently into electrolytic cell, finally enter oxidation pond oxidation, are discharged after up to standard.By the processing of multiple steps, the content of Cyanide in Waste Water compound can be effectively reduced, solves the problems, such as that the medicament addition of existing waste water treatment system processing cyanide is of high cost, reaction tank takes up a large area.
Description
Technical field
The utility model belongs to technical field of waste water processing more particularly to a kind of cyanide-containing waste water treatment system.
Background technology
Cyanide wastewater is mainly derived from ore dressing, non-ferrous metal metallurgy, intermetallic composite coating, coking, plating, chemical industry process hides, instrument
Etc. industrial productions.Due to nature of production difference, the ingredient and property of waste water also differ.Gold ore factory cyanide barren solution content is every
It rises up to thousands of milligrams, electroplating wastewater 25~500mg/L containing cyanogen, wherein by-product coke-oven effluent is the most complicated, because of this waste water
In a variety of organic compounds containing ammonia nitrogen in high density, rhodanate and suitable concentration.It is quenched for steel material surface hardening
The cyanide pollution source of abraum salt liquid and a kind of high concentration (10%~15%).The high waste water of cyanide content, should consider first
It recycles；The low waste water of cyanogen content without recovery value, can only be handled.The method of recycling has acidification aeration-lye
Recycling sodium cyanide solution is absorbed, method of steam stripping adsorption produces potassium ferrocyanide etc..The method of processing have alkaline chlorination process, electrolytic oxidation,
Pressurizing hydrolysis, biochemical process, biology-iron processes, natural purification method, ferrous sulfate method, air stripping method etc..Its neutral and alkali chlorine
Change method is using commonplace；Ferrous sulfate method processing also has engineer application；Air stripping method can pollute air, and water outlet is not again up to
To discharge standard, seldom use.Cyanide plating can generate the waste water containing a large amount of cyanides, cyanide a concentration of 0~
500mg/L, what is had is even higher, and this kind of waste water is unprocessed just to be discharged, by serious polluted water resources.
Utility model content
Technical problem to be solved in the utility model is provides a kind of cyanide-containing waste water treatment system, it is intended to solve existing
Waste water treatment system processing cyanide it is indifferent the problem of.
In order to solve the above technical problems, the utility model is realized in this way, a kind of cyanide-containing waste water treatment system, including：
Cyanide wastewater collecting pit, alkali liquor preparing cylinder, acid storage, catalyst dispensing cylinder, cyanide wastewater adjust bucket, oxidant
Slot, treatment trough and oxidation pond；
The treatment trough includes the circulating slot and electrolytic cell that are separated by baffle, and solution can be passed through by having on the baffle
Hole slot, the electrolytic cell is interior to be equipped with overflow plate and undercurrent plate；
The cyanide wastewater adjust bucket respectively with the cyanide wastewater collecting pit, the alkali liquor preparing cylinder, the acid solution
Slot and the circulating slot are connected by pipeline, and the circulating slot is also connect with the catalyst dispensing cylinder by pipeline, described
Oxidation pond is connect respectively with the electrolytic cell, the oxidant slot by pipeline；
The cyanide wastewater adjusts and acid-base value regulation device is equipped in bucket, and rectifier and interior pole are equipped in the electrolytic cell
Plate, the internal polar plate include anode plate and cathode plate, and the cyanide wastewater adjusts bucket, the catalyst dispensing cylinder, the oxidation
Agent slot and the circulating slot are respectively equipped with pump.
Further, the electrolytic cell is connect with the oxidation pond by three-way ball valve, the electrolytic cell connection described three
The first end of pass ball valve, the oxidation pond connect the second end of the three-way ball valve, the third end connection institute of the three-way ball valve
It states cyanide wastewater and adjusts bucket.
Further, the cyanide wastewater collecting pit is also connect with the alkali liquor preparing cylinder by pipeline.
Further, the arrangement mode that the anode plate is mixed with the cathode plate using series, parallel or connection in series-parallel.
Further, regulation and control chip is equipped in the circulating slot, described in adjusting bucket inflow according to the cyanide wastewater
The flow of the solution of circulating slot calculates the demand of catalyst, and it is the need to obtain dosage from the catalyst dispensing cylinder
The catalyst for the amount of asking.
Further, sodium hydroxide solution, calcium hydroxide solution or sodium hydroxide and hydrogen are housed in the alkali liquor preparing cylinder
The mixed solution of calcium oxide.
Further, hydrochloric acid or sulfuric acid are housed in the acid storage.
Further, sodium chlorate, sodium chloride or potassium chloride are housed in the catalyst dispensing cylinder.
Further, sodium hypochlorite or hydrogen peroxide are housed in the oxidant slot.
Compared with prior art, advantageous effect is the utility model：The cyanide-containing waste water treatment system of the utility model, contains
Cyanogen waste water be introduced into cyanide wastewater adjust bucket adjust acid-base value, enter back into circulating slot and add catalyst, subsequently into electrolytic cell into
Row electrolysis finally enters oxidation pond oxidation, is discharged after up to standard.By the processing of multiple steps, can be effectively reduced in waste water
The content of cyanide, the medicament for solving existing waste water treatment system processing cyanide add of high cost, reaction tank floor space
The problem of big.
Description of the drawings
A kind of structure diagram for cyanide-containing waste water treatment system that Fig. 1 the utility model embodiments provide.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, for a kind of cyanide-containing waste water treatment system that the utility model embodiment provides, including cyanide wastewater
Collecting pit 1, alkali liquor preparing cylinder 2, acid storage 3, catalyst dispensing cylinder 4, cyanide wastewater adjust bucket 5, oxidant slot 6, treatment trough with
And oxidation pond 11.
Treatment trough includes the circulating slot 7 separated by baffle 9 and electrolytic cell 12, and the hole of solution can be passed through by having on baffle 9
Slot, electrolytic cell 12 is interior to be equipped with overflow plate 8 and undercurrent plate 10.
Cyanide wastewater adjust bucket 5 respectively with cyanide wastewater collecting pit 1, alkali liquor preparing cylinder 2, acid storage 3 and circulating slot 7
Connected by pipeline, circulating slot 7 is also connect with catalyst dispensing cylinder 4 by pipeline, oxidation pond 11 respectively with electrolytic cell 12 and oxygen
Agent slot 6 is connected by pipeline.
Cyanide wastewater adjusts and acid-base value regulation device is equipped in bucket 5, and rectifier and internal polar plate, interior pole are equipped in electrolytic cell 12
Plate includes anode plate and cathode plate, the arrangement mode that wherein anode plate is mixed with cathode plate using series, parallel or connection in series-parallel.Contain
Cyanogen waste water adjusts bucket 5, catalyst dispensing cylinder 4, oxidant slot 6 and circulating slot 7 and is respectively equipped with pump.
A specific example is lifted, collection concentration of cyanide is the waste liquid 2000L of 1000mg/L in cyanide wastewater collecting pit 1
In, cyanide wastewater is squeezed into cyanide wastewater with pump and adjusted in bucket 5, enough alkali is added in into alkaline liquor make-up tank 2 by uniform water quality
Liquid adds in enough acid solutions into acid storage 3, and acid-base value regulation device in bucket 5 is adjusted by cyanide wastewater by cyanide wastewater
The pH value (acid-base value) for adjusting solution in bucket 5 is controlled between 9-10, and when pH value is less than 9, alkali is obtained from alkaline liquor make-up tank 2
Liquid, so that the pH value of solution rises；When pH value is more than 10, acid solution is obtained from acid storage 3, so that the pH value of solution declines.
Cyanide wastewater is adjusted the solution in bucket 5 with pump to squeeze into 20L to circulating slot 7, while with pumping urging in catalyst dispensing cylinder 4
Agent is squeezed into circulating slot 7, and the solution that magnetic drive pump is blended with catalyst is recycled to be pumped into electrolytic cell by the hole slot on baffle 9
In 12, until solution height just realizes interior cycle.At this point, opening the rectifier in electrolytic cell 12, electric current is adjusted to 960A, electrolysis
After about 3h, the cyanide content in the solution in electrolytic cell 12 is detected, when cyanide content is 20mg/L, by electrolytic cell 12
Interior solution is driven into oxidation pond 11, and simultaneous oxidation agent slot 6 adds in 50L oxidants into oxidation pond 11, after stirring about 1h,
When the cyanide content in the solution for detecting oxidation pond 11 is 0.05mg/L, qualified discharge.
This system is mostly plating or chemical plating waste water for the cyanide wastewater of processing, can also handle containing for other industries generations
Cyanogen waste water, the concentration of cyanide in waste water are 0.5-10000mg/L, are adjusted in bucket 5 in cyanide wastewater and control the pH value of waste water
Between 9.0-11.0, handled by 12 electrolysis of electrolytic cell, after the content of Cyanide in Waste Water compound is reduced to 10-100mg/L, pump
Enter oxidation pond 11, handle to rear discharge up to standard.
The spacing of cathode plate and anode plate in electrolytic cell 12 controls electric current, electricity between 0.8-6.5cm, by rectifier
In catalytic process, current density is 50-450A/ ㎡.Anode plate and anode conducting material are insoluble material.Solution can be from top
Portion is by overflow plate 8, and from bottom by undercurrent plate 10, such design can enable solution fortune S-type in electrolytic cell 12
It is dynamic, solution is enable more adequately to be contacted with internal polar plate, so that electrolysis is more abundant.
Further, electrolytic cell 12 can be connect with oxidation trough 11 by three-way ball valve, and electrolytic cell 12 connects three-way ball valve
First end, oxidation trough 12 connect three-way ball valve second end, three-way ball valve third end connection cyanide wastewater adjust bucket 5.
When after the concentration of cyanide in treated the solution of electrolytic cell 12 is up to standard, the flow direction of three-way ball valve is switched to
One end is circulated with second end, and ie in solution can enter oxidation trough 11 from electrolytic cell 12；The cyanogen in through treated the solution of electrolytic cell 12
The concentration of compound is not up to standard, and the flow direction of three-way ball valve is switched to first end circulates with third end, and ie in solution can be from electrolytic cell 12
Bucket 5 is adjusted into cyanide wastewater, solution not up to standard is returned in cyanide wastewater adjusting bucket 5 and is handled again, until
The concentration of cyanide is up to standard in solution.The concentration of cyanide in solution can be set as up to standard less than 100mg/L, other situations
It is set as not up to standard.
Further, cyanide wastewater collecting pit 1 can also be connect with alkali liquor preparing cylinder 2 by pipeline.It gives up due to containing cyanogen
Water is alkalinity, can add in the cyanide wastewater in alkali liquor preparing cylinder 2 directly from cyanide wastewater collecting pit 1, is added appropriate
Alkali solid, obtain the lye in alkali liquor preparing cylinder 2, do not need to individually add in lye into alkali liquor preparing cylinder 2, reach saving
The effect of raw material.
Further, regulation and control chip is equipped in circulating slot 7, the molten of circulating slot 7 is flowed into for adjusting bucket 5 according to cyanide wastewater
The flow of liquid calculates the demand of catalyst, and the catalyst that dosage is the demand is obtained from catalyst dispensing cylinder 4.Make
There are enough catalyst in the solution of circulating slot 7, and be unlikely to that catalyst is made to cause to waste too much.The dosing method of catalyst is adopted
With continuous feed liquor, continuous addition, the mode that feed liquor does not add.
Further, the lye used in alkali liquor preparing cylinder 2 can be, but not limited to include：Sodium hydroxide solution, hydroxide
The mixed solution of calcium solution, sodium hydroxide and calcium hydroxide；The acid solution used in acid storage 3 can be, but not limited to include：Hydrochloric acid,
Sulfuric acid；The catalyst used in catalyst dispensing cylinder 4 can be, but not limited to include：Sodium chlorate, sodium chloride, potassium chloride；Oxidant
The oxidant used in slot can be, but not limited to include：Sodium hypochlorite, hydrogen peroxide.
The cyanide-containing waste water treatment system of the present embodiment, cyanide wastewater are introduced into cyanide wastewater and adjust bucket adjusting acid-base value, then
Into circulating slot and add catalyst, be electrolysed subsequently into electrolytic cell, finally enter oxidation pond oxidation, discharged after up to standard.It is logical
The processing of multiple steps is crossed, the content of Cyanide in Waste Water compound can be effectively reduced, solves existing waste water treatment system processing
The problem of medicament addition of cyanide is of high cost, reaction tank takes up a large area.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of cyanide-containing waste water treatment system, which is characterized in that including：
Cyanide wastewater collecting pit, alkali liquor preparing cylinder, acid storage, catalyst dispensing cylinder, cyanide wastewater adjust bucket, oxidant slot,
Treatment trough and oxidation pond；
The treatment trough includes the circulating slot and electrolytic cell that are separated by baffle, and the hole of solution can be passed through by having on the baffle
Slot, the electrolytic cell is interior to be equipped with overflow plate and undercurrent plate；
The cyanide wastewater adjust bucket respectively with the cyanide wastewater collecting pit, the alkali liquor preparing cylinder, the acid storage with
And the circulating slot is connected by pipeline, the circulating slot is also connect with the catalyst dispensing cylinder by pipeline, the oxidation
Pond is connect respectively with the electrolytic cell, the oxidant slot by pipeline；
The cyanide wastewater adjusts and acid-base value regulation device is equipped in bucket, and rectifier and internal polar plate, institute are equipped in the electrolytic cell
State internal polar plate and include anode plate and cathode plate, the cyanide wastewater adjust bucket, the catalyst dispensing cylinder, the oxidant slot and
The circulating slot is respectively equipped with pump.
2. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that the electrolytic cell passes through with the oxidation pond
Three-way ball valve connects, and the electrolytic cell connects the first end of the three-way ball valve, and the oxidation pond connects the three-way ball valve
Second end, the third end of the three-way ball valve connect the cyanide wastewater and adjust bucket.
3. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that the cyanide wastewater collecting pit also with institute
Alkali liquor preparing cylinder is stated to connect by pipeline.
4. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that the anode plate is used with the cathode plate
Series, parallel or the arrangement mode of connection in series-parallel mixing.
5. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that regulation and control chip is equipped in the circulating slot,
For adjusting the flow that bucket flows into the solution of the circulating slot according to the cyanide wastewater, the demand of catalyst is calculated, and from
The catalyst that dosage is the demand is obtained in the catalyst dispensing cylinder.
6. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that hydroxide is housed in the alkali liquor preparing cylinder
The mixed solution of sodium solution, calcium hydroxide solution or sodium hydroxide and calcium hydroxide.
7. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that hydrochloric acid or sulphur are housed in the acid storage
Acid.
8. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that chloric acid is housed in the catalyst dispensing cylinder
Sodium, sodium chloride or potassium chloride.
9. cyanide-containing waste water treatment system as described in claim 1, which is characterized in that sodium hypochlorite is housed in the oxidant slot
Or hydrogen peroxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721368971.7U CN207511891U (en) | 2017-10-23 | 2017-10-23 | A kind of cyanide-containing waste water treatment system |
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| CN201721368971.7U CN207511891U (en) | 2017-10-23 | 2017-10-23 | A kind of cyanide-containing waste water treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809650A (en) * | 2019-03-29 | 2019-05-28 | 江苏京源环保股份有限公司 | A kind of cyanide wastewater electrocatalytic oxidation processing method and system |
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- 2017-10-23 CN CN201721368971.7U patent/CN207511891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109809650A (en) * | 2019-03-29 | 2019-05-28 | 江苏京源环保股份有限公司 | A kind of cyanide wastewater electrocatalytic oxidation processing method and system |
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