CN109231445A - A kind of preprocess method improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency - Google Patents
A kind of preprocess method improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency Download PDFInfo
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- CN109231445A CN109231445A CN201811179361.1A CN201811179361A CN109231445A CN 109231445 A CN109231445 A CN 109231445A CN 201811179361 A CN201811179361 A CN 201811179361A CN 109231445 A CN109231445 A CN 109231445A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/286—Anaerobic digestion processes including two or more steps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- 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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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
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Abstract
The invention discloses a kind of preprocess methods for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency, belong to field of waste water treatment, it is intended to provide a kind for the treatment of effeciency that can significantly improve subsequent anaerobic reactor, the Etimicin Sulfate synthetic wastewater preprocess method of the water outlet COD of anaerobic reactor is greatly reduced, the technical scheme comprises the following steps for it: S1: being inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water is added in pretreatment pool；S2: K is added into Etimicin Sulfate waste water2HPO4, with the waste water and anaerobic sludge in blender batch type pretreatment pool；S3: in preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages.The present invention is suitable for the pretreatment of Etimicin Sulfate synthetic wastewater.
Description
Technical field
The present invention relates to pretreatment method for wastewater, in particular to a kind of raising Etimicin Sulfate synthetic wastewater Anaerobic Treatment
The preprocess method of efficiency.
Background technique
Etimicin Sulfate is clinically common aminoglycoside antibiotics, mainly carries out chemistry by Gentamicin C1a
It is obtained after synthesis, a large amount of synthetic wastewaters is generated in production process, part Gentamicin C1a and tetrahydrofuran are contained in the waste water
Residual, high-concentration sulfuric acid Etimicin synthetic wastewater (COD > 10000mg/L) generallys use anaerobic process and carries out at biology at present
Reason.Gentamicin C1a all has a strong inhibitory effect gram-positive bacteria and negative bacterium, the bioavailability of tetrahydrofuran compared with
Difference, if the high-concentration waste water is directly carried out Anaerobic Treatment, COD removal effect is poor, causes water outlet COD higher.Therefore, originally
It is badly in need of developing a kind of preprocess method that can be improved high-concentration sulfuric acid Etimicin synthetic wastewater anaerobic degradation efficiency in field.
Summary of the invention
The object of the present invention is to provide a kind of pretreatment sides for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency
The advantages of method has the treatment effeciency for significantly improving subsequent anaerobic reactor, the water outlet COD of anaerobic reactor is greatly reduced.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of preprocess method improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency, the method includes following steps
It is rapid:
S1: being inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water is added in pretreatment pool；
S2: K is added into Etimicin Sulfate waste water2HPO4, in blender batch type pretreatment pool waste water with detest
Oxygen sludge；
S3: in preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Continuously and at the uniform velocity add folic acid, the Etimicin Sulfate waste water in the stage is not anti-to subsequent anaerobism always in pre-reaction pond
Device is answered to flow out；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool.
By using above-mentioned technical proposal, anaerobic sludge be a kind of tool rule or it is irregular intend circular granular texture,
It is dirty to be inoculated with anaerobism in pretreatment pool for the special anaerobic digestion kind mud being made of many methane-producing bacterias and non-methane-producing bacteria
Mud, and K is added2HPO4And folic acid, methane phase der Pilz mass propagation can be promoted, can effectively degradable organic pollutant, improve
Biochemical reaction speed is conducive to the removal of COD in Etimicin Sulfate waste water.
Further, in the S1, the anaerobic sludge inoculation volume is the 1/3-1/6 of pretreatment pool dischargeable capacity,
The residual volume of the pretreatment tank is filled with Etimicin Sulfate waste water.
By using above-mentioned technical proposal, seed sludge contains more microorganism, is pre- by anaerobic sludge inoculation volume
The 1/3-1/6 of processing pond dischargeable capacity, can either meet in anaerobic sludge has enough microorganisms in pretreatment pool
Etimicin Sulfate waste water is pre-processed, and pretreatment pool can be made to reserve enough spaces for accommodating Etimicin Sulfate
Waste water improves the pretreatment efficiency of Etimicin Sulfate waste water.
Further, in the S2, the K that is added in the pretreatment tank2HPO4Concentration is 8mg/L-13mg/L.
By using above-mentioned technical proposal, K2HPO4On the one hand it is used as buffer solution, keeps entire solution more stable；It is another
Aspect can promote the transmitting of matrix between the production and bacterium not of the same race of microorganism, improve biochemical reaction speed, be conducive to
The removal of COD in Etimicin Sulfate waste water.
Further, in (I) reaction process, the accumulative folic acid total concentration added is 30-50mg/L.
By using above-mentioned technical proposal, folic acid can promote the growth and breeding of microorganism in anaerobic sludge, particularly,
With K2HPO4Mating reaction under, the mass propagation of methane phase der Pilz can be promoted, cotton-shaped condensate is made to be capable of forming sedimentation
Property good particle, can effectively degradable organic pollutant, improve biochemical reaction speed, be conducive in Etimicin Sulfate waste water
The removal of COD.
Further, in (I) reaction process, pH value is 6.3-6.8 in the pretreatment tank.
By using above-mentioned technical proposal, the pH value of pretreatment pool is maintained into faintly acid, the stabilization for being conducive to folic acid is deposited
So that folic acid is sufficiently promoted the growth and breeding of microorganism, improves the utilization rate of folic acid.
Further, in (III), supernatant in the pretreatment tank flow into anaerobic reactor influx and
The ratio of backflow water yield of the anaerobic reactor effluent recycling to pretreatment pool is 2.5:1-4.5:1.
Further, in the S2, the mixing speed of the blender is 180rpm.
By using above-mentioned technical proposal, effective stirring can improve the suspended state of organic matter and it is accelerated to dissolve
Journey can also promote contact of the organic solid with microorganism because stirring can become smaller big flocculating body by shear action, make
Contain more microbial cells in grain sludge, and then improve the activity of microorganism, mixing speed is that 180rpm can be to anaerobism
Sludge and Etimicin Sulfate waste water and K2HPO4It is thoroughly mixed, to improve microbial activity and sulfuric acid according to replacing
The biochemical property of rice star waste water, and then it is obviously improved the COD removal efficiency of subsequent anaerobic reactor.
In conclusion the invention has the following advantages:
Anaerobic sludge is added in the present invention, is also added into K2HPO4And folic acid, the mainly microorganism in raising anaerobic sludge are living
Property, the biochemical property of Etimicin Sulfate waste water is improved, so that it is obviously improved the COD removal efficiency of subsequent anaerobic reactor,
Reduce pollutant emission.
Detailed description of the invention
Fig. 1 is to carry out pretreated process flow chart to Etimicin Sulfate waste water for embodying.
Specific embodiment
Invention is further described in detail below.
A kind of preprocess method improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency, comprising the following steps:
S1: being inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water is added in pretreatment pool；
S2: K is added into Etimicin Sulfate waste water2HPO4, in blender batch type pretreatment pool waste water with detest
Oxygen sludge；
S3: in preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Continuously and at the uniform velocity add folic acid, the Etimicin Sulfate waste water in the stage is not anti-to subsequent anaerobism always in pre-reaction pond
Device is answered to flow out；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool.
Wherein, the Etimicin Sulfate waste water COD > 10000mg/L to be processed being added in S1, to sulfuric acid according to for rice
Star waste water carries out a pretreated cycle diagram and sees Fig. 1.
Preferably, anaerobic sludge is inoculated with the 1/3-1/6 that volume is pretreatment pool dischargeable capacity, pretreatment in S1
The residual volume in pond is filled with Etimicin Sulfate waste water.
Preferably, in S2, the K that is added in pretreatment pool2HPO4Concentration is 8mg/L-13mg/L.
Preferably, the accumulative folic acid total concentration added is 30-50mg/L in (I) reaction process.
Preferably, pH value is 6.3-6.8 in pretreatment pool in (I) reaction process.
Preferably, the influx and anaerobism of the supernatant inflow anaerobic reactor in pretreatment pool are anti-in (III)
The ratio for answering device effluent recycling to the backflow water yield of pretreatment pool is 2.5:1-4.5:1.
Preferably, the mixing speed of blender is 180rpm in S2.
Embodiment 1:
It is inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water (COD > 10000mg/ is added in pretreatment pool
L), anaerobic sludge inoculation volume is the 1/3 of pretreatment pool dischargeable capacity, and the residual volume of pretreatment pool is useless with Etimicin Sulfate
Water fills.Then K is added into Etimicin Sulfate waste water2HPO4, the K that adds in pretreatment pool2HPO4Concentration is 8mg/L, is used
Waste water and anaerobic sludge in blender batch type pretreatment pool, the mixing speed of blender are 180rpm.
In preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Folic acid continuously and is at the uniform velocity added, the accumulative folic acid total concentration added is 30mg/L, and pH value control is 6.3 in pretreatment pool, the rank
The Etimicin Sulfate waste water of section in pre-reaction pond, does not flow out always to subsequent anaerobic reactor；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool, the supernatant in pretreatment pool flows into the stream of anaerobic reactor
Enter amount and anaerobic reactor effluent recycling to pretreatment pool backflow water yield ratio be 2.5:1.
Pretreated Etimicin Sulfate waste water is passed through in subsequent anaerobic reactor, the anaerobism residence time is 2 days,
The Inlet and outlet water COD of subsequent anaerobic reactor is measured, influent COD 11250mg/L, water outlet COD are 1080mg/L, COD removal rate
It is 90.4%.
Embodiment 2:
It is inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water (COD > 10000mg/ is added in pretreatment pool
L), anaerobic sludge inoculation volume is the 1/4 of pretreatment pool dischargeable capacity, and the residual volume of pretreatment pool is useless with Etimicin Sulfate
Water fills.Then K is added into Etimicin Sulfate waste water2HPO4, the K that adds in pretreatment pool2HPO4Concentration is 9mg/L, is used
Waste water and anaerobic sludge in blender batch type pretreatment pool, the mixing speed of blender are 180rpm.
In preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Folic acid continuously and is at the uniform velocity added, the accumulative folic acid total concentration added is 45mg/L, and pH value control is 6.4 in pretreatment pool, the rank
The Etimicin Sulfate waste water of section in pre-reaction pond, does not flow out always to subsequent anaerobic reactor；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool, the supernatant in pretreatment pool flows into the stream of anaerobic reactor
Enter amount and anaerobic reactor effluent recycling to pretreatment pool backflow water yield ratio be 3:1.
Pretreated Etimicin Sulfate waste water is passed through in subsequent anaerobic reactor, the anaerobism residence time is 2 days,
The Inlet and outlet water COD of subsequent anaerobic reactor is measured, influent COD 15600mg/L, water outlet COD are 860mg/L, and COD removal rate is
94.5%。
Embodiment 3:
It is inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water (COD > 10000mg/ is added in pretreatment pool
L), anaerobic sludge inoculation volume is the 1/6 of pretreatment pool dischargeable capacity, and the residual volume of pretreatment pool is useless with Etimicin Sulfate
Water fills.Then K is added into Etimicin Sulfate waste water2HPO4, the K that adds in pretreatment pool2HPO4Concentration is 13mg/L,
With the waste water and anaerobic sludge in blender batch type pretreatment pool, the mixing speed of blender is 180rpm.
In preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Folic acid continuously and is at the uniform velocity added, the accumulative folic acid total concentration added is 50mg/L, and pH value control is 6.8 in pretreatment pool, the rank
The Etimicin Sulfate waste water of section in pre-reaction pond, does not flow out always to subsequent anaerobic reactor；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool, the supernatant in pretreatment pool flows into the stream of anaerobic reactor
Enter amount and anaerobic reactor effluent recycling to pretreatment pool backflow water yield ratio be 4.5:1.
Pretreated Etimicin Sulfate waste water is passed through in subsequent anaerobic reactor, the anaerobism residence time is 2 days,
The Inlet and outlet water COD of subsequent anaerobic reactor is measured, influent COD 12338mg/L, water outlet COD are 950mg/L, and COD removal rate is
92.3%。
Comparative example
Etimicin Sulfate waste water is passed directly into anaerobic reactor and is reacted, the anaerobism residence time is 2 days, influent COD
It is 3820mg/L for 14300mg/L, water outlet COD, COD removal rate is 73.3%.
In conclusion the COD in COD removal rate > embodiment 1 in COD removal rate > embodiment 3 in embodiment 2 is gone
Except the COD removal rate in rate > comparative example, for the removal rate of COD, Etimicin Sulfate waste water is passed through again after pretreatment
In subsequent anaerobic reactor, COD removal rate is significantly improved, and therefore, is pre-processed to Etimicin Sulfate waste water, Ke Yiming
The aobvious treatment effeciency for improving subsequent anaerobic reactor, is greatly reduced the water outlet COD of anaerobic reactor, reduces pollutant emission.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (7)
1. a kind of preprocess method for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency, which is characterized in that the side
Method the following steps are included:
S1: being inoculated with anaerobic sludge in pretreatment pool, and Etimicin Sulfate waste water is added in pretreatment pool；
S2: K is added into Etimicin Sulfate waste water2HPO4, with the waste water and anaerobism in blender batch type pretreatment pool
Sludge；
S3: in preprocessing process, every 8h is a cycle period, and each cycle period can be divided into 3 stages:
(I) processing time first stage is 3 hours, which is continuously stirred with blender, and into Etimicin Sulfate waste water
Continuously and at the uniform velocity add folic acid, the Etimicin Sulfate waste water in the stage is not anti-to subsequent anaerobism always in pre-reaction pond
Device is answered to flow out；
(II) the second stage processing time is 1 hour, which stops stirring, and the mixture in pretreatment pool is stood；
(III) processing time phase III is 4 hours, which stops stirring, has been added to pretreatment pool bottom supplement
Entered K2HPO4Etimicin Sulfate waste water, so that equivalent supernatant in pretreatment pool is flowed into subsequent anaerobic reactor, simultaneously
By effluent recycling a part of anaerobic reactor into pretreatment pool.
2. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in the S1, the anaerobic sludge inoculation volume is the 1/3-1/6 of pretreatment pool dischargeable capacity, described
The residual volume of pretreatment pool is filled with Etimicin Sulfate waste water.
3. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in the S2, the K that is added in the pretreatment tank2HPO4Concentration is 8mg/L-13mg/L.
4. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in (I) reaction process, the accumulative folic acid total concentration added is 30-50mg/L.
5. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in (I) reaction process, pH value is 6.3-6.8 in the pretreatment tank.
6. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in (III), the supernatant in the pretreatment tank flows into influx and the institute of anaerobic reactor
State anaerobic reactor effluent recycling to pretreatment pool backflow water yield ratio be 2.5:1-4.5:1.
7. a kind of pretreatment side for improving Etimicin Sulfate synthetic wastewater Anaerobic Treatment efficiency according to claim 1
Method, which is characterized in that in the S2, the mixing speed of the blender is 180rpm.
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