CN208948890U - A kind of novel extraction dephenolize system - Google Patents
A kind of novel extraction dephenolize system Download PDFInfo
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- CN208948890U CN208948890U CN201821186199.1U CN201821186199U CN208948890U CN 208948890 U CN208948890 U CN 208948890U CN 201821186199 U CN201821186199 U CN 201821186199U CN 208948890 U CN208948890 U CN 208948890U
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- strippant
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Abstract
The utility model discloses a kind of novel extraction dephenolize systems, including sequentially connected water inlet system, extracting system and back extraction system, it is characterized by: the extracting system is made of extraction tower and extractant circulatory pool, the extracting system is also communicated with sodium phenolate pond；The back extraction system is composed in series by three stripping cells, and the stripping cells include stripping column and strippant circulatory pool；The extracting and dephenolizing system further includes the power conveying device for conveying material.Extractant circulatory pool is returned to by extractant after being stripped three times, is re-used, strippant recycles back extraction product sodium phenolate in strippant circulatory pool cycle bleeder, realizes recycling, minimizing and innoxious purpose.
Description
Technical field
The utility model relates to field of waste water treatment, and in particular to a kind of novel extraction dephenolize system.
Background technique
For high-concentration phenolic wastewater before carrying out the technical treatments such as biochemistry, generally requires and it is carried out at extracting and dephenolizing
Reason.In extracting and dephenolizing treatment process, back extraction process consumption lye amount is big, and lye utilization rate is low, and back extraction phenol product sodium is dense
It spends low, can not recycle.
Utility model content
Deficiency in regarding to the issue above, the utility model provide a kind of novel extraction dephenolize system, utilize pH, extraction
It takes, the technology synergies effect such as multistage back extraction, improves extraction efficiency and lye utilization rate, improve sodium phenolate in back extraction product
Concentration, to achieve the purpose that recycling.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of novel extraction dephenolize system, it is described including the water inlet system, extracting system and back extraction system being sequentially communicated
Extracting system is made of extraction tower and extractant circulatory pool, and the extracting system is also communicated with sodium phenolate pond；The back extraction system
System is composed in series by three stripping cells, and the stripping cells include stripping column and strippant circulatory pool；The extraction
Taking dephenolize system further includes the power conveying device for conveying material.
Further scheme, the water inlet system is made of water inlet pipe, pipe-line mixer, feed pot and intermediate pool, described
Pipe-line mixer is connected to the water inlet pipe, feed pot and intermediate pool respectively, and the water inlet system further includes for conveying
State the dosing pump of material and the feed pump for conveying material in intermediate pool in feed pot.
Further scheme, the extraction tower and stripping column are from top to bottom successively arranged tower top discharge port, are located at tower side
The enterprising material mouth of face upper end, lower feed inlet and tower bottom discharge port positioned at tower side lower end.
Further scheme, the first back extraction that the back extraction system is sequentially connected in series the first stripping column and communicates therewith
Agent circulatory pool, second back extraction recycle column and communicate therewith the second strippant circulatory pool, third back extraction recycle column and and its
It is connected to third strippant circulatory pool；The first strippant circulatory pool is connected to sodium phenolate pond；The third strippant
Circulatory pool is also communicated with the lye pond for supplementing strippant, and the third stripping column also connects with the extractant circulatory pool
It is logical.
Preferably, the power conveying device includes four circulating pumps and lye pump；The circulating pump is respectively used to convey
The strippant in extractant and the first, second and third strippant circulatory pool in the extractant circulatory pool, the lye
Pump is for conveying the lye in the lye pond to the third strippant circulatory pool.
Compared with prior art, the utility model has the following beneficial effects:
The utility model utilizes the technologies such as pH adjusting, extraction and multistage back extraction, collaboration according to high-concentration phenolic wastewater property
Effect takes extracting and dephenolizing for high-concentration phenolic wastewater, and guarantee meets biochemical treatment water inlet and controls requirement to phenol, recycles simultaneously
It is stripped product sodium phenolate.
Using system described in the utility model, high-concentration phenolic wastewater after pH is adjusted, is entered from the enterprising material mouth of extraction tower,
It is inversely exchanged with the extractant that feed inlet enters under extraction tower, utilizes the phenol in extractant absorption waste water, extracting and demixing
Afterwards, extractant is discharged from tower top discharge port, and waste water after dephenolize is discharged from tower bottom discharge port, water outlet phenol content 200mg/L with
Under.
Under the premise of guaranteeing extracting and dephenolizing effect, saturation extractant sequentially enters the first stripping column, the second back extraction
Tower, third stripping column, extractant returns to extractant circulatory pool after being stripped three times, re-uses, while third being stripped
It takes the saturation strippant being discharged in tower as strippant in the second back extraction tower, will be further saturated in the second stripping column
Strippant improves the utilization rate of strippant as strippant in the first back extraction tower, relatively primary back extraction, by three times
After back extraction, strippant utilization efficiency improves 20%, after the strippant saturation in the first strippant circulatory pool, is discharged into phenol
Sodium salt pond, recycling back extraction product sodium phenolate.
For phenol wastewater after Tthe utility model system is handled, the phenol content of water outlet is less than 200mg/L, realizes efficiently
Dephenolize；Extractant recoverable is stripped the collecting material reuse of product sodium phenolate while improving lye utilization rate, reaches nothing
Evilization resource utilization realizes recycling, minimizing and innoxious purpose, meets market needs and economic development requirement,
Meet the requirement of energy saving, low-carbon economy and environmental protection.
Detailed description of the invention
Fig. 1 is the flow diagram of the novel extraction dephenolize system of the application one embodiment.
In figure: 1. water inlet pipes, 2. pipe-line mixers, 3. feed pots, 4. intermediate pools, 5. dosing pumps, 6. feed pumps, 7. extractions
Take tower, 8. extractant circulatory pools, 9. first stripping columns, 10. first strippant circulatory pools, 11. second stripping columns, 12.
Second strippant circulatory pool, 13. third stripping columns, 14. third strippant circulatory pools, 15. sodium phenolate ponds, 16. lye
Pond, 17. first circulations pump, 18. second circulations pump, 19. third circulating pumps, 20. the 4th circulating pumps, 21. lye pumps.
Specific embodiment
With reference to the accompanying drawing and specific embodiment does further clear and complete say to the technical solution of the utility model
It is bright.
A kind of novel extraction dephenolize system, including sequentially connected water inlet system, extracting system and back extraction system, it is described
Extracting system is made of extraction tower and extractant circulatory pool, and the back extraction system is composed in series by three stripping cells, institute
Stating stripping cells includes stripping column and strippant circulatory pool.Specifically, extraction tower and stripping column from top to bottom according to
It is secondary to be equipped with tower top discharge port, the enterprising material mouth positioned at tower side upper end, the lower feed inlet positioned at tower side lower end and tower bottom discharging
Mouthful.
In one embodiment of the application, as shown in Figure 1, water inlet system is by water inlet pipe 1, pipe-line mixer 2, feed pot
3 and intermediate pool 4 form, equipped with the acid solution for adjusting wastewater pH in feed pot 3, pipe-line mixer, which can be, any to be had
The connector of three-port structure, water inlet system further include the dosing pump 5 for conveying acid solution in the feed pot 3.The application's
In one embodiment, pipe-line mixer 2 is T-type three-limb tube, is connected respectively with water inlet pipe 1, feed pot 3 and intermediate pool 4
Logical, the acid solution exported in the waste water and feed pot 3 convenient for that will enter pipe-line mixer 2 by water inlet pipe 1 is in pipe-line mixer 2
After mixing, outflow pipe-line mixer 2 enters intermediate pool 4, and intermediate pool 4 is also connected with for by the waste water in intermediate pool 4
It is delivered to the feed pump 6 of extracting system.
In one embodiment of the application, extracting system is made of extraction tower 7 and extractant circulatory pool 8, is stripped system
The first strippant circulatory pool 10, second including being sequentially connected in series the first stripping column 9 and communicating therewith is stripped recycle column
11 and communicate therewith the second strippant circulatory pool 12, third back extraction recycle column 13 and communicate therewith third strippant circulation
Pond 14, particularly, the first strippant circulatory pool 10 are also communicated with anti-for recycling saturation in the first strippant circulatory pool 10
The sodium phenolate pond 15 of extractant, the third strippant circulatory pool 14 are also communicated with the lye pond for supplementing strippant
16, particularly, third stripping column 13 is also communicated with extractant circulatory pool 8.
Specifically, as shown in Fig. 1, in one embodiment of the application, the intermediate pool 4 is upper with extraction tower 7
Feed inlet connection, the lower feed inlet of extraction tower 7 are connected to extractant circulatory pool 8, and waste water extracted goes out from the tower bottom of extraction tower 7
Biochemical treatment is done in material mouth discharge, and the tower top discharge port of extraction tower 7 is connected to the lower feed inlet of the first stripping column 9, the first back extraction
The enterprising material mouth and tower bottom discharge port for taking tower 9 are connected to the first strippant circulatory pool 10；The tower top of first stripping column 9 goes out
Material mouth is connected to the lower feed inlet of the second stripping column 11, and the enterprising material mouth and tower bottom discharge port of the second stripping column 11 are with
The connection of two strippant circulatory pools 12；The tower top discharge port of second stripping column 11 and the lower feed inlet of third stripping column 13 connect
Logical, the enterprising material mouth and tower bottom discharge port of third stripping column 13 are connected to third strippant circulatory pool 14.Particularly,
One strippant circulatory pool 10 is also communicated with sodium phenolate pond 15, and third strippant circulatory pool 14 is also communicated with lye pond 16, the
The tower top discharge port of three stripping columns 13 is connected to extractant circulatory pool 8.
Further, further include in embodiments herein for conveying extractant circulatory pool 8, the first strippant follows
The power transmission dress of material in cisterna ambiens 10, the second strippant circulatory pool 12, third strippant circulatory pool 14 and lye pond 16
It sets.Specifically, power conveying device includes first circulation pump 17, second circulation pump 18, third circulating pump 19, the 4th circulating pump 20
With lye pump 21；First circulation pump 17 is located between the extraction tower 7 and the extractant circulatory pool 8, second circulation pump 18, the
Three circulating pumps 19, the 4th circulating pump 20 be respectively provided between first stripping column 9 and the first strippant circulatory pool 10,
Between two stripping columns 11 and the second strippant circulatory pool 12, third stripping column 13 and third strippant circulatory pool 14 it
Between, the lye pump 21 is located between the third back extraction circulatory pool 14 and the lye pond 16.
For the clearer technical solution for understanding the application, below with reference to the extracting and dephenolizing system in above-described embodiment,
Description is made to the workflow of utility model:
Process as shown in Figure 1, by high-concentration phenolic wastewater by water inlet pipe 1 enter pipe-line mixer 2, while according into
Acid solution in feed pot 3 is added in pipe-line mixer 2 by dosing pump 5 and is mixed, wastewater pH is adjusted to 7 ~ 8, was adjusted by water pH
Waste water after pH flows into intermediate pool 4 by pipe-line mixer 2.
Waste water after adjusting pH in intermediate pool 4 is discharged into extraction tower 7 from the enterprising material mouth of extraction tower 7 by feed pump 6,
The extractant in extractant circulatory pool 8 enters extraction tower 7 from the lower feed inlet of extraction tower 7 by first circulation pump 17 simultaneously, extracts
After taking layering, lower layer's waste water does biochemical treatment by the tower bottom discharge port discharge of extraction tower 7, and upper layer saturation extract liquor passes through extraction
The tower top discharge port of tower 7 enters back extraction system and is stripped, it is preferred that the body of feedstock of extractant and waste water in extraction tower 7
Product is than being 1:2.
Specifically, the saturation extract liquor from extracting system enters the first back extraction from the lower feed inlet of the first stripping column 9
Take tower 9, at the same the first strippant circulatory pool 10 by second circulation pump 18 by strippant from the enterprising of the first stripping column 9
Material mouth is sent into the first stripping column 9, is saturated extract liquor and strippant carries out reverse back extraction for the first time in the first stripping column 9
Regeneration, after back extraction layering, strippant is discharged into the first strippant circulatory pool from the tower bottom discharge port by the first stripping column 9
10, Recycling discharges it into sodium phenolate pond 15 after the strippant saturation in the first strippant circulatory pool 10, and recycling is again
With.
Extractant after being once stripped regeneration is discharged from the tower top discharge port of the first stripping column 9, anti-by second
The lower feed inlet of extraction tower 11 enters the second stripping column 11, while the second strippant circulatory pool 12 passes through third circulating pump 19
Strippant is sent into the second stripping column 11 from the enterprising material mouth of the second stripping column 11, the extractant after primary back extraction regeneration
Secondary back extraction regeneration is carried out in the second stripping column 11 with strippant, after secondary back extraction layering, strippant passes through second
The tower bottom discharge port of stripping column 11 is discharged into the second strippant circulatory pool 12, Recycling, when the second strippant circulatory pool
It discharges it into the first strippant circulatory pool 10 after strippant saturation in 12 and uses again.
Extractant after secondary back extraction regeneration is discharged from the tower top discharge port of the second stripping column 11, anti-by third
The lower feed inlet of extraction tower 13 enters third stripping column 13, while third strippant circulatory pool 14 passes through the 4th circulating pump 20
Strippant is discharged into third stripping column 13 from the enterprising material mouth of third stripping column 13, the extractant after secondary back extraction regeneration
Regeneration is stripped three times in third stripping column 13 with strippant, and after back extraction layering, strippant is stripped by third
The tower bottom discharge port of tower 13 is taken to be discharged into third strippant circulatory pool 14, Recycling, when in third strippant circulatory pool 14
Strippant saturation after discharge it into the second strippant circulatory pool 12 and use again, while it is the lye in lye pond 16 is (anti-
Extractant) it is supplemented into third strippant circulatory pool 14.Preferably, the back extraction process three times of the application, strippant and
The addition volume ratio of extractant is 1:1.
Particularly, third stripping column 13 is connected to by tower top discharge port with extractant circulatory pool 8, when third stripping column
After back extraction layering in 13, extraction is discharged by the tower top discharge port of third stripping column 13 again by the extractant being stripped three times
Take 8 Recycling of agent circulatory pool.
It uses the extracting and dephenolizing system of the application to handle initial phenol concentration as the high-concentration phenolic wastewater of 5000mg/L, passes through
The extracting and dephenolizing system of the application is handled, and the phenol concentration of water outlet is 50mg/L, and strippant utilization efficiency improves 20%, and recycles
Sodium phenolate content reach 2000mg/L.It can be seen that the extracting and dephenolizing system of the application, dephenolize is high-efficient, and extractant can follow
Ring utilizes, and the utilization rate of strippant is high, and back extraction product sodium phenolate collects reuse, while guaranteeing High-Efficiency Phenol-Degradation, section
About processing cost, realizes recycling, minimizing and innoxious purpose.
It is noted that above embodiments are only the application preferred embodiment, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art make variation without making creative work, modify, replace
It changes and deformation shall fall in the protection scope of this application.
Claims (5)
1. a kind of novel extraction dephenolize system, including the water inlet system, extracting system and back extraction system being sequentially communicated, feature
Be: the extracting system is made of extraction tower and extractant circulatory pool, and the extracting system is also communicated with sodium phenolate pond；It is described
Back extraction system is composed in series by three stripping cells, and the stripping cells include stripping column and strippant circulation
Pond；The extracting and dephenolizing system further includes the power conveying device for conveying material.
2. novel extraction dephenolize system as described in claim 1, it is characterised in that: the water inlet system is by water inlet pipe, pipeline
Mixer, feed pot and intermediate pool composition, the pipe-line mixer connect with the water inlet pipe, feed pot and intermediate pool respectively
Logical, the water inlet system further includes for conveying in the feed pot dosing pump of material and for conveying material in intermediate pool
Feed pump.
3. novel extraction dephenolize system as described in claim 1, it is characterised in that: the extraction tower and stripping column by up to
Under be successively arranged tower top discharge port, the enterprising material mouth positioned at tower side upper end, the lower feed inlet and tower positioned at tower side lower end
Bottom discharge port.
4. novel extraction dephenolize system as described in claim 1, it is characterised in that: the back extraction system has been sequentially connected in series
One stripping column is stripped recycle column with the first strippant circulatory pool communicated therewith, second and communicates therewith the second back extraction
Agent circulatory pool, third are stripped recycle column and communicate therewith third strippant circulatory pool；The first strippant circulatory pool
It is connected to the sodium phenolate pond；The third strippant circulatory pool is also communicated with the lye pond for supplementing strippant, institute
Third stripping column is stated also to be connected to the extractant circulatory pool.
5. novel extraction dephenolize system as claimed in claim 4, it is characterised in that: the power conveying device includes four and follows
Ring pump and lye pump；The circulating pump is respectively used to convey the extractant in the extractant circulatory pool and described first, second and third
Strippant in strippant circulatory pool, lye to the third that the lye pump is used to convey in the lye pond are stripped
Take agent circulatory pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821186199.1U CN208948890U (en) | 2018-07-25 | 2018-07-25 | A kind of novel extraction dephenolize system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821186199.1U CN208948890U (en) | 2018-07-25 | 2018-07-25 | A kind of novel extraction dephenolize system |
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| CN208948890U true CN208948890U (en) | 2019-06-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751317A (en) * | 2018-07-25 | 2018-11-06 | 合肥中亚环保科技有限公司 | A kind of novel extraction dephenolize system |
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- 2018-07-25 CN CN201821186199.1U patent/CN208948890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751317A (en) * | 2018-07-25 | 2018-11-06 | 合肥中亚环保科技有限公司 | A kind of novel extraction dephenolize system |
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