CN207061961U - For the exceeded early warning and alert device of acid waste water ferrous ion - Google Patents
For the exceeded early warning and alert device of acid waste water ferrous ion Download PDFInfo
- Publication number
- CN207061961U CN207061961U CN201720137059.4U CN201720137059U CN207061961U CN 207061961 U CN207061961 U CN 207061961U CN 201720137059 U CN201720137059 U CN 201720137059U CN 207061961 U CN207061961 U CN 207061961U
- Authority
- CN
- China
- Prior art keywords
- orp
- pond
- probes
- ferrous ion
- early warning
- 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.)
- Expired - Fee Related
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910001448 ferrous ion Inorganic materials 0.000 title claims abstract description 44
- 239000002351 wastewater Substances 0.000 title claims abstract description 22
- 239000002253 acid Substances 0.000 title claims abstract description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 100
- 239000000523 sample Substances 0.000 claims abstract description 29
- 239000010865 sewage Substances 0.000 claims abstract description 24
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 31
- 229910052742 iron Inorganic materials 0.000 abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 28
- -1 grid advance pond Chemical compound 0.000 abstract description 25
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000005554 pickling Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 235000021110 pickles Nutrition 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model discloses one kind to be used for the exceeded early warning and alert device of acid waste water ferrous ion, including grid advance pond, computer and NaOH solution pond, pH probes, ORP probes and dispensing diffuser are provided with grid advance pond, dispensing diffuser is connected by administration line set with NaOH solution pond, and administration line set is provided with NaOH dosing pumps；PH is popped one's head in and ORP pops one's head in and is respectively connected with transmission line between computer, and alarm and magnetic valve are in series between NaOH dosing pumps and computer.Analyzed by the pH value before pH probes and the sewage plant trash rack that receives of ORP probes and ORP value, predicted using pH ORP fit regression curves and control iron ion in grid advance pond and ferrous ion concentration ratio to reach sets requirement by adding NaOH solution.The utility model can realize the accurate early warning excessive to sewage plant water inlet ferrous ion concentration, energy timely processing, avoid subsequent processing device operation troubles.
Description
Technical field
The utility model belongs to water treatment field, specifically in steel and related water process excessive ferrous ion it is pre-
Alert and emergency processing field, it is related to a kind of ORP (oxidation-reduction potential) and pH (hydrogen ionexponent) value of being based on to ferrous iron
The excessive early warning of ion and emergency treatment device.
Background technology
Steel industry is to use water rich and influential family and discharge of wastewater rich and influential family, and the disposition of steel wastewater is increasingly by various circles of society
Extensive concern.As steel original paper blank is previous in electroplating surface, spraying will through overpickling, to remove oxide on surface, because
And pickle liquor and pickling waste waters are produced, in actual industrial production, nitric acid, hydrofluoric acid, hydrochloric acid, sulfuric acid etc. are more conventional
Acid.Wherein pickle liquor is higher containing acid concentration, recyclable regenerated acid.And substantial amounts of flushing water, i.e. pickling waste waters acid content are relatively low,
It is then very uneconomical for reclaiming, so being arranged as outside waste water.Often contain sulfuric acid, nitric acid, iron ion, ferrous ion and oil in waste liquid
Dirt etc..Sewage treatment plant is during steel wastewater is handled, if water inlet contains substantial amounts of ferrous ion, ferrous ion is aoxidizing
While into iron ion, the reduction of water pH value can be caused, seriously endangers the equipment such as water factory's pipeline and subsequent treatment structures,
The serious quantity and activity for suppressing microorganism in sewage plant biochemical treatment, the normal operation of sewage treatment plant's integrated artistic is influenceed,
It is difficult to stable water outlet qualified discharge.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model be to provide it is a kind of be used for acid waste water ferrous iron from
The exceeded early warning and alert device of son, the utility model prior-warning device have small volume, integrated level high, predict the advantages of accurate.
In order to solve the above-mentioned technical problem, the utility model proposes one kind be used for the exceeded early warning of acid waste water ferrous ion
Prediction meanss, including grid advance pond and computer, also include NaOH solution pond, pH is provided with the grid advance pond
Probe, ORP probes and dispensing diffuser, the pH pop one's head in for monitoring the pH value before sewage plant trash rack；The ORP probes
For monitoring the ORP value before sewage plant trash rack, the dispensing diffuser passes through administration line set and NaOH solution pond phase
Even, the administration line set is provided with NaOH dosing pumps；Between pH probe and the computer, ORP probes with it is described
Transmission line is respectively connected between computer, alarm and magnetic valve are in series between the NaOH dosing pumps and the computer.
Further, in the utility model, according to regression equation y=aebxFit regression curve show that the grid advances
The concentration ratio of iron ion and ferrous ion in pond；Above-mentioned regression equation y=aebxIn, x is the ORP value of water inlet, and y is water inlet
Middle iron ion and ferrous ion concentration ratio, e are natural constant, e ≈ 2.71828；A and b is constant, is popped one's head in and surveyed according to the pH
The pH value of the water inlet obtained, a and b value are as follows：
The concentration ratio of iron ion and ferrous ion in the grid advance pond, predict the iron ion and it is ferrous from
Whether the concentration ratio of son meets setting value.
Wherein, the iron ion of sewage plant water inlet and the setting value of ferrous ion concentration ratio are Fe3+:Fe2+=2:1, pass through to
NaOH solution is added in the grid advance pond so that the pH in the grid advance pond is 6~7.
Compared with prior art, the utility model has the advantage that：
The utility model, according to mathematical regression thought, utilizes ORP-pH by ORP probes and pH probe joint on-line monitorings
Fit regression curve realizes iron ion and the prediction of ferrous ion concentration ratio, when ferrous ion concentration is higher than early warning concentration, sewage
Factory can receive warning message in time, and so that sewage treatment plant takes emergency measures and (adds NaOH in time before grid), prevention is sub-
Iron ion causes corrosiveness to subsequent treatment structures.The utility model early warning precision can reach 0.702~0.998, can be with
Realize the excessive accurate early warning of ferrous ion concentration of being intake to sewage plant, and can timely processing, avoid subsequent processing device from transporting
Row failure.
Brief description of the drawings
Fig. 1 is the pH-ORP fit regression curves in the utility model, reflects that different proportion iron ion and ferrous ion exist
ORP simulation regression curves under condition of different pH；
Fig. 2 is the structural representation of the utility model early warning and alert device：
Fig. 3 is the workflow diagram of the utility model early warning and alert device.
In figure：1-pH pops one's head in, 2-ORP probes, 3- grid advances pond, 4- dispensing diffusers, 5-NaOH solution pools, 6-
NaOH dosing pumps, 7- computers, 8- alarms, 9- magnetic valves.
Embodiment
Technical solutions of the utility model are described in further detail with specific embodiment below in conjunction with the accompanying drawings, it is described
Only the utility model is explained for specific embodiment, not limiting the utility model.
As shown in Fig. 2 the utility model proposes one kind be used for the exceeded early warning and alert device of acid waste water ferrous ion, wrap
Grid advance pond 3, computer 7 and NaOH solution pond 5 are included, pH probes 1, ORP probes 2 are provided with the grid advance pond 3
With dispensing diffuser 4, the pH probes 1 are used to monitor the pH value before sewage plant trash rack；The ORP probes 2 are used to monitor
ORP value before sewage plant trash rack；The dispensing diffuser 4 is connected by administration line set 10 with the NaOH solution pond 5, institute
State administration line set 10 and be provided with NaOH dosing pumps 6；Between pH probe 1 and the computer 7, ORP probes 2 with it is described
Transmission line is respectively connected between computer 7, alarm 8 and electromagnetism are in series between the NaOH dosing pumps 6 and the computer 7
Valve 9.
The utility model is used for the work that the exceeded early warning and alert device of acid waste water ferrous ion realizes early warning and alert device
Process is as shown in Fig. 2 pH value and ORP value before the sewage plant trash racks measured by the pH 1 and ORP of probe probes 2 obtain
Go out the iron ion and ferrous ion concentration ratio of sewage plant water inlet；The setting of the iron ion and ferrous ion concentration ratio of sewage plant water inlet
It is worth for Fe3+:Fe2+=2:1, when the iron ion and ferrous ion concentration ratio of the sewage plant water inlet drawn exceed setting value, by reporting
Alert device 8 is alarmed, and opens NaOH dosing pumps 6 and the NaOH solution in NaOH solution pond 5 is passed through into administration line set 10 described in
Dispensing diffuser 4 is added into the grid advance pond 3, because the precipitation pH value of, iron ion is 2~3 or so, ferrous ion
Precipitation pH value 7~8 or so, therefore, improve pH value by adding NaOH solution, the precipitation capacity of ferrous ion can be improved,
So that the pH in the grid advance pond 3 is 6~7, to ensure that follow-up sewage treatment structure is not corroded.At the same time,
The pH value and ORP value detected using pH 1 and ORP of probe probes 2, under different pH value conditions, by determining ORP value, root
According to regression equation y=aebxFit regression curve, pH-ORP fit regression curves as shown in Figure 1 draw the grid advancing water
The concentration ratio of iron ion and ferrous ion in pond 3；Above-mentioned regression equation y=aebxIn, x is the ORP value of water inlet, and y is in water inlet
Iron ion and ferrous ion concentration ratio, e are natural constant, e ≈ 2.71828；A and b is constant, according to the pH value of water inlet, a and
B value is as follows：
Finally, the concentration ratio of the iron ion in the grid advance pond 3 drawn and ferrous ion, predicts the iron
Whether the concentration ratio of ion and ferrous ion meets setting value.
Ferrous ion surpasses during the utility model receives steel pickling waste liquor especially suitable for municipal sewage plant
Target early warning.Because pickling waste waters pH value is relatively low, and iron ion and ferrous ion in acid condition can be preferably soluble in water,
Therefore, the utility model is only in acid waste water.Although the prediction and alarm device in the utility model is to be directed to total concentration of iron
For 120mg/L, but stood good for other total concentration of iron, design principle of the present utility model.
Embodiment 1：The exceeded early warning and alert device of acid waste water ferrous ion is used for ferrous ion using the utility model
Not exceeded waste water prediction, the pH value of the waste water is 3.0, ORP value 480, the iron ion set and ferrous ion concentration ratio as
Less than 1:Early warning is sent when 2.Realize that the processing step of early warning and alert is as follows：
(1) trade effluent is discharged into pipe network and popped one's head in the prison of 1 and ORP probes 2 into after sewage treatment plant, passing through pH before coarse rack
Survey pH the and ORP two indices of water inlet；
(2) measured numerical value is delivered to sewage treatment plant's turn-key system by 1 and ORP of pH probes probes 2 by transmission line
I.e. in computer 7；
(3) by the pH value and ORP value that measure, drawn up using pH-ORP fit regression curve automatic molds as shown in Figure 1
The iron ion and the concentration ratio of ferrous ion that sewage plant is intake at present, measure the concentration of the iron ion and ferrous ion when advancing water
Than for 3.5:1；
(4) when the iron ion of advancing water and the concentration ratio of ferrous ion are not up to early warning value, alarm 8 does not start, by
The emergent dosing systems of NaOH that NaOH solution pond 5, NaOH dosing pumps 6 and dispensing diffuser 4 are formed also do not start.
Embodiment 2：The exceeded early warning and alert device of acid waste water ferrous ion is used for ferrous ion using the utility model
Not exceeded waste water prediction, the pH of the waste water be 3.0, ORP 430, the iron ion set and ferrous ion concentration ratio as less than
1:Early warning is sent when 2.Realize that the processing step of early warning and alert is as follows：
Step (1) is same as Example 1 to (3), and measures when the iron ion of advancing water and the concentration ratio of ferrous ion are
0.25:1；
(4) when the ferrous ion concentration of advancing water is exceeded, magnetic valve 9 is opened, and alarm 8, which starts, sends alarm, by NaOH
Solution pool 5, NaOH dosing pumps 6 and dispensing diffuser 4 form NaOH meet an urgent need dosing system start simultaneously, to coarse rack before add
NaOH solution, using the pH value of regulating water quality as 6~7, prevent follow-up structures from being acted on by sour corrosion.
By embodiment 2 as can be seen that when ferrous ion concentration exceedes early warning value, the utility model early warning and alert device
NaOH solution can be added in time, and the pH value of regulating water quality meets the requirement of subsequent treatment, not only enables subsequent biological treatment
Normal operation, and can prevent follow-up structures from being acted on by sour corrosion.
Although the utility model is described above in conjunction with accompanying drawing, the utility model is not limited to above-mentioned
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, the ordinary skill of this area
Personnel are under enlightenment of the present utility model, in the case where not departing from the utility model aims, can also make many variations, this
Belong within protection of the present utility model.
Claims (1)
1. one kind is used for the exceeded early warning and alert device of acid waste water ferrous ion, including grid advance pond (3) and computer
(7), it is characterised in that also include NaOH solution pond (5), pH probes (1) are provided with the grid advance pond (3), ORP is visited
Head (2) and dispensing diffuser (4), the pH probes (1) are used to monitor the pH value before sewage plant trash rack；The ORP probes
(2) be used to monitor the ORP value before sewage plant trash rack, the dispensing diffuser (4) by administration line set (10) with it is described
NaOH solution pond (5) is connected, and the administration line set (10) is provided with NaOH dosing pumps (6), by the grid advance pond
(3) NaOH solution is added in so that the pH in the grid advance pond (3) is 6~7；The pH probes (1) and the calculating
Between machine (7), be respectively connected with transmission line between the ORP probe (2) and the computer (7), the NaOH dosing pumps (6) and
Alarm (8) and magnetic valve (9) are in series between the computer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720137059.4U CN207061961U (en) | 2017-02-15 | 2017-02-15 | For the exceeded early warning and alert device of acid waste water ferrous ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720137059.4U CN207061961U (en) | 2017-02-15 | 2017-02-15 | For the exceeded early warning and alert device of acid waste water ferrous ion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207061961U true CN207061961U (en) | 2018-03-02 |
Family
ID=61502025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720137059.4U Expired - Fee Related CN207061961U (en) | 2017-02-15 | 2017-02-15 | For the exceeded early warning and alert device of acid waste water ferrous ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207061961U (en) |
-
2017
- 2017-02-15 CN CN201720137059.4U patent/CN207061961U/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: 20180302 |