CN109133524A - The processing system and processing method of high COD medicine intermediate wastewater from chemical industry with high salt - Google Patents
The processing system and processing method of high COD medicine intermediate wastewater from chemical industry with high salt Download PDFInfo
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- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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Abstract
The invention discloses a kind of processing systems of medicine intermediate wastewater from chemical industry for handling high COD with high salt.The high COD medicine intermediate chemical wastewater treatment system with high salt specifically includes that conditioning tank, air floatation machine, level-one fabric filter, No.1 intermediate pool, level-one light electrolysis-Fenton system, No.1 sedimentation basin, comprehensive adjustment pond, biochemical system, secondary fiber filter, No. two intermediate pools, second level light electrolysis-Fenton system, No. two sedimentation basins, discharge pond, No.1 sedimentation basin and No. two sedimentation basins couple with sludge-tank, sludge-tank couples with sludge drying device, sludge after desiccation is handled using carbonization device, makes its recycling.This system is at low cost, and treatment effect is stablized, and capacity of resisting impact load is strong.The present invention also also discloses a kind of processing method of medicine intermediate wastewater from chemical industry for handling high COD with high salt.
Description
Technical field
This application involves chemical wastewater treatment field more particularly to a kind of processing of high COD pharmaceutical intermediate wastewater with high salt
System and processing method.
Background technique
With significantly improving for China's people's living standard, pharmaceutical industry also shows fast-developing trend.At present I
The state of development of state's pharmaceuticals industry shows the features such as number of the enterprise is more, scale is relatively small, and the medicament categories of production are various.
Pharmacy procedure needs intermediate, therefore medicine intermediate chemical industry also flourishes, medicine intermediate chemical production wastewater tool
There is the features such as pollutant concentration height, salinity height, complicated component, biodegradability is poor, is more toxic, does not handle or handle not in place incite somebody to action
Not only aggravate Water Pollution Problem, more seriously threatens people's health.The waste water of major part medicine intermediate chemical company exists at present
It is not in place that pretreatment is encountered in treatment process, salinity limits the efficiency of biochemical treatment, is discharged the statuses such as not up to standard.Therefore, exist
When handling high COD difficult to degrade medicine intermediate wastewater from chemical industry with high salt, it should stable high-efficiency pretreatment technology is selected, using conjunction
The processing mode of suitable process integration, realizes the processing up to standard of waste water, while reducing the processing cost of waste water.
Summary of the invention
An object of the present invention be to provide a kind of high COD of efficient process pharmaceutical intermediate wastewater with high salt processing system and
Method, garden pipe network discharge standard or sewage are discharged into town sewer water standard where the waste water that makes that treated reaches enterprise "
(GB/T 31962-2015)
According to an aspect of the present invention, a kind of processing system of high COD medicine intermediate wastewater from chemical industry with high salt is provided, is wrapped
It includes:
For collecting the collecting pit of high COD medicine intermediate wastewater from chemical industry with high salt；
Preprocessing module, the preprocessing module include the conditioning tank successively coupled, air floatation machine, level-one fabric filter,
No.1 intermediate pool, level-one light electrolysis-Fenton system, No.1 sedimentation basin, the conditioning tank couple with the collecting pit；
Biochemical treatment module, the biochemical treatment module include the comprehensive adjustment pond successively coupled, biochemical system, second level
Fabric filter, No. two intermediate pools, the comprehensive adjustment pond couple with the No.1 sedimentation basin；
Advanced treating module, the advanced treating module include the second level light electrolysis-Fenton system successively coupled, No. two
Sedimentation basin, discharge pond, the second level light electrolysis-Fenton system couple with No. two intermediate pools；
Treatment of Sludge module, the Treatment of Sludge module include the sludge collecting pit successively coupled, drying equipment, charing
Equipment, the sludge collecting pit are precipitated with the air floatation machine, the No.1 sedimentation basin, the biochemical system and described No. two respectively
Pond connection.
Further, it can be set respectively before the air floatation machine and before the No.1 sedimentation basin and before No. two sedimentation basins
Set chemicals dosing plant.
Further, the biochemical system may include upflow anaerobic sludge blanket process (UASB) and aerobic system biological contact oxygen
Change pond.
Further, the level-one light electrolysis-Fenton system may include level-one micro-electrolysis reaction tank and level-one Fenton's reaction
Tank, the second level light electrolysis-Fenton system may include second level micro-electrolysis reaction tank and second level Fenton's reaction tank, the micro- electricity of level-one
It solves in reactor tank and the second level micro-electrolysis reaction tank settable on settable pH on-line measuring device and its water inlet pipe
Acidity adjustment device.
Further, the level-one micro-electrolysis reaction tank, the level-one Fenton's reaction tank, the second level micro-electrolysis reaction
Settable aerator is distinguished on tank, the second level Fenton's reaction tank.
According to another aspect of the present invention, a kind of processing method of high COD medicine intermediate wastewater from chemical industry with high salt is provided,
The following steps are included:
(1) the high COD medicine intermediate wastewater from chemical industry with high salt in collecting pit is discharged into conditioning tank, reduces and control waste water
Fluctuation；
(2) by step (1) treated waste water is discharged into air floatation machine, pH to 8-9 or so is adjusted, flocculant is added, flocculation is heavy
Form sediment colloidal substance and the lesser solid particulate matter etc. removed in waste water, and dross is collected into sludge collecting pit, and it is useless that treated
Water is discharged into level-one fabric filter and is filtered, and is discharged into No.1 intermediate pool later；
(3) the waste water pump in No.1 intermediate pool is squeezed into level-one light electrolysis-Fenton system, in level-one micro-electrolysis reaction tank
In, strong sulfuric acid response 1.5h-2h is added, so that the pH in carrying out level-one microelectrolysis process is maintained 2-4 always, by the micro- electricity of level-one
The waste water of solution is discharged into level-one Fenton tank, in Fenton's reaction tank, is added the hydrogen peroxide of 0.5%-1%, is reacted 2h-3h；
(4) by step (3) treated waste water is discharged into No.1 sedimentation basin, sodium hydroxide is added, adjusts pH to 8-9, is added
Flocculant carries out flocculation sedimentation, and sediment is discharged into sludge collecting pit；
(5) by step (4), treated that waste water is discharged into comprehensive adjustment pond, mixed with the sanitary sewage in access comprehensive adjustment pond
It closes, makes the salt content of waste water within the tolerance range 50000mg/l of Facultative Halophiles；
(6) by step (5), treated that waste water is discharged into biochemical system, and waste water first passes through upflow anaerobic sludge blanket process, then passes through
It crosses aerobic system biological contact oxidation pond and carrys out degradation of organic substances, while by generated mud discharging into sludge collecting pit；
(7) by step (6) treated waste water is discharged into secondary fiber filter filtering, it is discharged into No. two intermediate pools later；
(8) the waste water pump in No. two intermediate pools is squeezed into second level light electrolysis-Fenton system, in second level micro-electrolysis reaction tank
In, strong sulfuric acid response 0.5h-1h is added, so that the pH in carrying out second level microelectrolysis process is maintained 2-4 always, in second level Fenton tank
In, the hydrogen peroxide of 0.5%-1% is added, 1h-1.5h is reacted；
(9) by step (8) treated waste water is discharged into No. two sedimentation basins, sodium hydroxide is added, adjusts pH to 8-9, is added
Flocculant carries out flocculation sedimentation, and sediment is discharged into sludge collecting pit, and waste water is discharged to discharge pond；
(10) desiccation is carried out to the sludge in sludge collecting pit and removes water, then carbonized, make its recycling.
Further, the microorganism used in biochemical system is Facultative Halophiles, and salinity tolerance range can reach
50000mg/l。
Further, the flocculant in step (2), step (4) and step (9) can be PAC and PAM.
Further, the sanitary sewage in step (5) can enter comprehensive adjustment pond by coarse rack and fine fack processing.
The beneficial effects of the present invention are: waste water treatment system provided by the present invention and process can be with stability and high efficiencies
High COD medicine intermediate wastewater from chemical industry with high salt is handled, to reach garden pipe network discharge standard or sewage is discharged into cities and towns
Sewer water standard " (GB/T 31962-2015).And medicine intermediate Industrial Wastewater Treatment provided by the present invention system
System and method, at low cost, treatment effect is stablized, and capacity of resisting impact load is strong.This processing system and method is equally applicable to other
Chemical industry high-COD waste water processing item with high salt.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below in conjunction with the attached drawing in the application embodiment, the technical solution in presently filed embodiment is carried out clear
Chu, complete description, it is clear that described embodiment is merely possible to illustrate, and is not intended to limit the application.This example with
For liking abundant vertical chemical industry (Jiangsu) the Co., Ltd pharmaceutical intermediate wastewater processing item of water, the COD of raw water is 18000-
20000mg/l。
The processing system of the high COD medicine intermediate wastewater from chemical industry with high salt of processing of the invention, comprising:
For collecting the collecting pit of high COD medicine intermediate wastewater from chemical industry with high salt；
Preprocessing module comprising the conditioning tank that successively couples, air floatation machine, level-one fabric filter, No.1 intermediate pool,
Level-one light electrolysis-Fenton system, No.1 sedimentation basin, conditioning tank couple with collecting pit；
Biochemical treatment module comprising the comprehensive adjustment pond that successively couples, biochemical system, secondary fiber filter, No. two
Intermediate pool, comprehensive adjustment pond couple with No.1 sedimentation basin；
Advanced treating module comprising second level light electrolysis-Fenton system for successively coupling, No. two sedimentation basins, discharge pond,
Second level light electrolysis-Fenton system couples with No. two intermediate pools；
Treatment of Sludge module comprising sludge collecting pit, drying equipment, the carbonization device successively coupled, sludge collecting pit
Couple respectively with air floatation machine, No.1 sedimentation basin, biochemical system and No. two sedimentation basins.
Particularly, chemicals dosing plant is respectively set before air floatation machine and before No.1 sedimentation basin and before No. two sedimentation basins.
Particularly, biochemical system includes upflow anaerobic sludge blanket process and aerobic system biological contact-oxidation pool.
Particularly, level-one light electrolysis-Fenton system includes level-one micro-electrolysis reaction tank and level-one Fenton's reaction tank, and second level is micro-
Electrolysis-Fenton system includes second level micro-electrolysis reaction tank and second level Fenton's reaction tank, level-one micro-electrolysis reaction tank and the micro- electricity of second level
It is respectively provided on pH on-line measuring device and its water inlet pipe in solution reactor tank and is respectively provided with acidity adjustment device.
Particularly, level-one micro-electrolysis reaction tank, level-one Fenton's reaction tank, second level micro-electrolysis reaction tank, second level Fenton's reaction
Aerator is respectively set on tank.
Using above-mentioned processing system, Workshop Production waste water passes through conditioning tank, sequentially enters air floatation machine, level-one fiber filter
Device, No.1 intermediate pool, level-one micro-electrolysis reaction tank, level-one Fenton's reaction tank, No.1 sedimentation basin, comprehensive adjustment pond, sanitary sewage
Enter comprehensive adjustment pond by second level grid (coarse rack and fine fack) processing, the composite waste pump after homogeneous squeezes into up-flow
Anaerobic mud bed, biological contact oxidation pond, secondary fiber filter, No. two intermediate pools, second level micro-electrolysis reaction tank, second level Fenton
Reactor tank, No. two sedimentation basins, discharge pond.
The present invention handles the processing method of high COD medicine intermediate wastewater from chemical industry with high salt, including the following steps:
(1) the high COD medicine intermediate wastewater from chemical industry with high salt in collecting pit is discharged into conditioning tank, reduces and control waste water
Fluctuation, provides a stable water quality and quantity condition for subsequent processes.
(2) by step (1) treated waste water is discharged into air floatation machine, pH to 8-9 or so is adjusted, flocculant PAC, PAM is added,
Flocculation sedimentation removes colloidal substance and lesser solid particulate matter in waste water etc., and dross is collected into sludge collecting pit, processing
Waste water afterwards is discharged into level-one fabric filter and is filtered, and removes the substances such as a small amount of solid suspension, the colloid in waste water, later
It is discharged into No.1 intermediate pool.
(3) the waste water pump in No.1 intermediate pool is squeezed into level-one light electrolysis-Fenton system, in level-one micro-electrolysis reaction tank
In, 20% concentrated sulfuric acid is added, adjusts pH between 2-4, reacts 1.5h-2h, is discharged into level-one sweet smell by the waste water of level-one light electrolysis
Pause in tank, in Fenton's reaction tank, the hydrogen peroxide (30%) of 0.5%-1% is added, reacts 2h-3h.In the micro- electricity of entire level-one
In solution-Fenton system, the biodegradability of waste water can be improved, enter biochemical system for waste water and strong condition is provided.
(4) by step (3) treated waste water is discharged into No.1 sedimentation basin, sodium hydroxide is added, adjusts pH to 8-9, then
Flocculant PAC, PAM is added and carries out flocculation sedimentation, sediment is discharged into sludge collecting pit.
(5) by step (4), treated that waste water is discharged into comprehensive adjustment pond, before entering biochemical treatment system, it is contemplated that thermophilic
The tolerance of salt strain needs to carry out water distribution herein, makes pretreated life in sanitary sewage access comprehensive adjustment pond and pond
Waste water mixing is produced, mixing can reduce salinity and COD concentration in waste water, so that the salinity in comprehensive adjustment pond reaches biochemical
In system within the tolerance range 50000mg/l of Facultative Halophiles.
(6) by step (5), treated that waste water is discharged into biochemical system, and waste water first passes through UASB upflow anaerobic sludge blanket process,
Carry out degradation of organic substances using aerobic system biological contact oxidation pond, while by generated mud discharging to sludge collecting pit
In.COD most in waste water can be removed in biochemical system.
(7) by step (6) treated waste water is discharged into secondary fiber filter filtering, for removing a small amount of in waste water consolidate
Substances such as body suspended matter, colloid etc., waste water is discharged into No. two intermediate pools later.
(8) the waste water pump in No. two intermediate pools is squeezed into second level light electrolysis-Fenton system, in second level micro-electrolysis reaction tank
In, strong sulfuric acid response 0.5h-1h is added, in second level Fenton tank, the hydrogen peroxide (30%) of 0.5%-1% is added, reacts 1h-
1.5h further removes the COD in water removal.
(9) by step (8) treated waste water is discharged into No. two sedimentation basins, sodium hydroxide is added, adjusts pH to 8-9, is added
Flocculant PAC, PAM carry out flocculation sedimentation, and sediment is discharged into sludge collecting pit, and waste water is discharged to discharge pond.
(10) sludge in sludge-tank is subjected to desiccation by drying equipment and removes water.Sludge is carbonized later, makes it
Innoxious, recycling.
Effluent quality in the pharmaceutical intermediate wastewater treatment process of the present embodiment is as shown in table 1 below:
Table 1 is discharged COD and degrades step by step situation table
As it can be seen from table 1 using waste water treatment system and method for the invention, it can be by medicine intermediate manufacturing enterprise
Wastewater effluent quality control in 200mg/l hereinafter, making that its effluent quality reaches garden pipe network discharge standard or sewage is discharged into city
Town sewer water standard " (GB/T 31962-2015).Moreover, this process effect stability, operating cost is low to be can be controlled in
25-30 yuans/ton of water.
It for those of ordinary skill in the art, can also be right under the premise of not departing from the application concept
The embodiment of the present invention makes several variations and modifications, these belong to the protection scope of the application.
Claims (9)
1. a kind of processing system of high COD medicine intermediate wastewater from chemical industry with high salt characterized by comprising
For collecting the collecting pit of high COD medicine intermediate wastewater from chemical industry with high salt；
Preprocessing module, the preprocessing module include the conditioning tank successively coupled, air floatation machine, level-one fabric filter, No.1
Intermediate pool, level-one light electrolysis-Fenton system, No.1 sedimentation basin, the conditioning tank couple with the collecting pit；
Biochemical treatment module, the biochemical treatment module include the comprehensive adjustment pond successively coupled, biochemical system, secondary fiber
Filter, No. two intermediate pools, the comprehensive adjustment pond couple with the No.1 sedimentation basin；
Advanced treating module, the advanced treating module include the second level light electrolysis-Fenton system successively coupled, No. two precipitatings
Pond, discharge pond, the second level light electrolysis-Fenton system couple with No. two intermediate pools；
Treatment of Sludge module, the Treatment of Sludge module include sludge collecting pit, drying equipment, the carbonization device successively coupled,
The sludge collecting pit joins with the air floatation machine, the No.1 sedimentation basin, the biochemical system and No. two sedimentation basins respectively
It connects.
2. processing system according to claim 1, which is characterized in that before the air floatation machine and the No.1 sedimentation basin before with
And chemicals dosing plant is respectively set before No. two sedimentation basins.
3. processing system according to claim 1 or 2, which is characterized in that the biochemical system includes that up-flow anaerobism is dirty
Mud bed and aerobic system biological contact-oxidation pool.
4. processing system according to claim 1 or 2, which is characterized in that the level-one light electrolysis-Fenton system includes one
Grade micro-electrolysis reaction tank and level-one Fenton's reaction tank, the second level light electrolysis-Fenton system include second level micro-electrolysis reaction tank and
PH on-line checking dress is respectively provided in second level Fenton's reaction tank, the level-one micro-electrolysis reaction tank and the second level micro-electrolysis reaction tank
It sets and is respectively provided with acidity adjustment device on its water inlet pipe.
5. processing system according to claim 4, which is characterized in that the level-one micro-electrolysis reaction tank, the level-one are fragrant
Aerator is respectively set on the second level Fenton's reaction tank in reactor tank, the second level micro-electrolysis reaction tank.
6. a kind of processing method of high COD medicine intermediate wastewater from chemical industry with high salt, which comprises the following steps:
(1) the high COD medicine intermediate wastewater from chemical industry with high salt in collecting pit is discharged into conditioning tank, reduces and control the wave of waste water
It is dynamic；
(2) by step (1) treated waste water is discharged into air floatation machine, pH to 8-9 or so is adjusted, flocculant is added, and to carry out flocculation heavy
It forms sediment, dross is collected into sludge collecting pit, and treated, and waste water is discharged into level-one fabric filter is filtered, and is discharged into No.1 later
Intermediate pool；
(3) the waste water pump in No.1 intermediate pool is squeezed into level-one light electrolysis-Fenton system, in level-one micro-electrolysis reaction tank,
Strong sulfuric acid response 1.5h-2h is added, so that the pH in carrying out level-one microelectrolysis process is maintained 2-4 always, by level-one light electrolysis
Waste water be discharged into level-one Fenton tank, in Fenton's reaction tank, add the hydrogen peroxide of 0.5%-1%, react 2h-3h；
(4) by step (3) treated waste water is discharged into No.1 sedimentation basin, sodium hydroxide is added, adjusts pH to 8-9, flocculation is added
Agent carries out flocculation sedimentation, and sediment is discharged into sludge collecting pit；
(5) by step (4), treated that waste water is discharged into comprehensive adjustment pond, mixes, makes with the sanitary sewage in access comprehensive adjustment pond
The salt content of waste water is within the tolerance range 50000mg/l of Facultative Halophiles；
(6) by step (5), treated that waste water is discharged into biochemical system, and waste water first passes through upflow anaerobic sludge blanket process, using good
Oxygen system biological contact-oxidation pool carrys out degradation of organic substances, while by generated mud discharging into sludge collecting pit；
(7) by step (6) treated waste water is discharged into secondary fiber filter filtering, it is discharged into No. two intermediate pools later；
(8) the waste water pump in No. two intermediate pools is squeezed into second level light electrolysis-Fenton system, in second level micro-electrolysis reaction tank,
Strong sulfuric acid response 0.5h-1h is added, the pH in carrying out second level microelectrolysis process is made to maintain 2-4 always, in second level Fenton tank,
The hydrogen peroxide of 0.5%-1% is added, 1h-1.5h is reacted；
(9) by step (8) treated waste water is discharged into No. two sedimentation basins, sodium hydroxide is added, adjusts pH to 8-9, flocculation is added
Agent carries out flocculation sedimentation, and sediment is discharged into sludge collecting pit, and waste water is discharged to discharge pond；
(10) desiccation is carried out to the sludge in sludge collecting pit and removes water, then carbonized.
7. processing method according to claim 6, which is characterized in that the microorganism used in biochemical system is salt tolerant
Bacterium, salinity tolerance range reach 50000mg/l.
8. processing method according to claim 6 or 7, which is characterized in that in step (2), step (4) and step (9)
Flocculant is PAC and PAM.
9. processing method according to claim 6 or 7, which is characterized in that the sanitary sewage in step (5) passes through coarse rack
Enter comprehensive adjustment pond with fine fack processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811114940.8A CN109133524A (en) | 2018-09-25 | 2018-09-25 | The processing system and processing method of high COD medicine intermediate wastewater from chemical industry with high salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811114940.8A CN109133524A (en) | 2018-09-25 | 2018-09-25 | The processing system and processing method of high COD medicine intermediate wastewater from chemical industry with high salt |
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| CN110526517A (en) * | 2019-09-20 | 2019-12-03 | 重庆杰润科技有限公司 | A kind of medical intermediate production waste water treatment process |
| CN110790460A (en) * | 2019-12-02 | 2020-02-14 | 中化(宁波)润沃膜科技有限公司 | Method for treating waste water in production of cephalosporin pharmaceutical intermediates |
| CN111470718A (en) * | 2020-04-15 | 2020-07-31 | 河南恒安环保科技有限公司 | Comprehensive wastewater treatment method for bismuth pectin bulk drug, acridone acetic acid, acyclovir and thiodipropionate medical intermediate |
| CN114716111A (en) * | 2022-04-24 | 2022-07-08 | 湖北兴为春科技有限公司 | Wastewater treatment system and treatment process |
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