CN107311330A - The method that alcohol biochemical tail water decolourizes - Google Patents
The method that alcohol biochemical tail water decolourizes Download PDFInfo
- Publication number
- CN107311330A CN107311330A CN201710711464.7A CN201710711464A CN107311330A CN 107311330 A CN107311330 A CN 107311330A CN 201710711464 A CN201710711464 A CN 201710711464A CN 107311330 A CN107311330 A CN 107311330A
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- China
- Prior art keywords
- alcohol
- tail water
- biochemical tail
- desorbing agent
- sorbing material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a kind of method that alcohol biochemical tail water decolourizes, comprise the following steps：Pretreatment：Filter alcohol biochemical tail water；Absorption：Pretreated alcohol biochemical tail water is handled using the ADSORPTION IN A FIXED BED for being filled with sorbing material, wherein, adsorption temp is 10 35 DEG C, and the flow of alcohol biochemical tail water is 0.1 6BV/h；Desorption：Sorbing material is subjected to desorption and regeneration with desorbing agent, regenerated liquid is obtained, the wherein flow velocity of desorbing agent is 0.6 3BV/h, and desorption temperature is 40 60 DEG C.Alcohol biochemical tail water is handled using the method for the present invention, high treating effect is workable, efficiently solve alcohol biochemical tail water and put forward mark this problem.
Description
Technical field
The present invention relates to a kind of field of environment protection, more particularly to a kind of method that alcohol biochemical tail water decolourizes.
Background technology
Alcohol Production uses the starchiness such as Tapioca chips, corn, sugarcane crops for raw material, and block or granular raw material is ground
It is broken into powdered, adds water and mix slurry, then by boiling and saccharification, then adds yeast and fermented, most obtained afterwards through distilling
Alcohol finished product.Cassava, corn, sugarcane are extracted after ethanol by fermentation, and the poor liquid of original discharged from alcohol distillation workshop section enters pollution treatment
After anaerobic jar is fermented, inclined wire filtering is pumped into through cooling, part solid content is removed, into a heavy pond, a heavy pond after precipitation
Supernatant enters two grades of further anaerobic fermentations of UASB, and secondary anaerobic water outlet is precipitated again into second pond, and supernatant enters air supporting
Processing, handles (Aerobic Pond or SBR) into aerobic biochemical system (activated sludge process) afterwards, and three heavy ponds are discharged into after biochemistry, heavy through three
Enter the organic wastewater mainly formed in secondary air-floatation, sewage in alcohol production and biochemical wastewater treatment after the precipitation of pond, therefore
The pollutant is preferably removed using the method for absorption after original biochemical treatment in sewage.
Resin adsorption method is a kind of generally acknowledged at present relatively effective waste water treatment and resource technology, and current alcohol tail water is carried
Mark application more is Fenton process, but because Fenton process can produce substantial amounts of sludge, such sludge belongs to dangerous waste, therefore runs into
This is at a relatively high.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of method that alcohol biochemical tail water decolourizes, this hair
Bright utilization absorption method realizes that alcohol biochemical tail water decolourizes to carry mark, the renewable processing of sorbing material.
The invention provides a kind of method that alcohol biochemical tail water decolourizes, comprise the following steps：
(1) pre-process：Filter alcohol biochemical tail water；
(2) following current is adsorbed：Pretreated alcohol biochemical tail water is handled using the ADSORPTION IN A FIXED BED for being filled with sorbing material,
Wherein, adsorption temp is 10-35 DEG C, and the flow of alcohol biochemical tail water is 0.1-6BV/h；
(3) it is desorbed：The sorbing material that step (2) is treated carries out desorption and regeneration with desorbing agent, obtains regenerated liquid, wherein
The flow velocity of desorbing agent is 0.6-3BV/h, and desorption temperature is 40-60 DEG C.
Further, then the above method obtains also including the use of the oxidizing processing regenerated liquid with step (2)
Absorption water outlet mixing after the step of discharge.
Further, oxidant is hydrogen peroxide and ferrous sulfate.
Further, in step (1), alcohol is the one or more in cassava alcohol, sugarcane alcohol and corn alcohol.
Further, in step (2), sorbing material is pyrrolidone containing base polymeric adsorbent.Pyrrolidone containing base is adsorbed
Resin is the ion exchange resin disclosed in the Chinese patent of Application No. 201410064555.2.
Further, in step (3), desorbing agent is the aqueous solution of sodium hydroxide or the aqueous solution of potassium hydroxide.
Further, the mass fraction of desorbing agent is 10-20%.
By such scheme, the present invention at least has advantages below：
Using the method for the present invention, the colourity of following current absorption water outlet can drop to less than 60 times by original 500-800 times,
COD can be dropped to below 50mg/L by original 200-500mg/L, ammonia nitrogen can be dropped to by original 50-200mg/L 20mg/L with
Under.Sorbing material can be regenerated with the aqueous solution of alkali after absorption, can qualified discharge after being mixed after regenerated liquid is oxidized with absorption water outlet.
Alcohol biochemical tail water is handled using the present invention, high treating effect is workable, efficiently solves cassava alcohol biochemical tail water
Carry and mark this problem.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate detailed description as after.
Embodiment
With reference to embodiment, the embodiment to the present invention is described in further detail.Following examples are used for
Illustrate the present invention, but be not limited to the scope of the present invention.
Pyrrolidone containing base polymeric adsorbent (HP-308) used in embodiment 1-3 is Application No.
201410064555.2 Chinese patent disclosed in resin.
Embodiment 1
20ml pyrrolidone containing base polymeric adsorbents (HP-308) are filled in the adsorption column of insulation jacket (￠ 35 ×
250mm).It is 500 times to take colourity, and COD is 300mg/L, and ammonia nitrogen is 150mg/L cassava alcohol biochemical tail water, is made after filtering
For upper prop liquid, in the case where temperature is 30 DEG C, with 5BV/h flow by adsorption column, adsorption treatment 100BV waste water adsorbs water outlet
Colourity is 45 times, and COD is 30mg/L, and ammonia nitrogen is 11mg/L.After resin adsorption saturation to be adsorbed, using 10% sodium hydroxide water
Solution is desorbed, and temperature 50 C, flow is 1BV/h, obtains regenerated liquid.By regenerated liquid with 2% hydrogen peroxide, ferrous sulfate oxidation after with
Adsorb qualified discharge after water outlet mixing.
Embodiment 2
200ml pyrrolidone containing base polymeric adsorbents (HP-308) are filled in the adsorption column of insulation jacket (￠ 60 ×
600mm).It is 600 times to take colourity, and COD is 380mg/L, and ammonia nitrogen is 160mg/L corn alcohol biochemical tail water, is made after filtering
For upper prop liquid, in the case where temperature is 20 DEG C, with 4BV/h flow by adsorption column, adsorption treatment 120BV waste water adsorbs water outlet
Colourity is 42 times, and COD is 45mg/L, and ammonia nitrogen is 17mg/L.After resin adsorption saturation to be adsorbed, using 20% sodium hydroxide water
Solution is desorbed, 55 DEG C of temperature, and flow is 1.5BV/h, obtains regenerated liquid.By regenerated liquid with after 3% hydrogen peroxide, ferrous sulfate oxidation
Qualified discharge after being mixed with absorption water outlet.
Embodiment 3
800ml pyrrolidone containing base polymeric adsorbents (HP-308) are filled in the adsorption column of insulation jacket (￠ 100 ×
1000mm).It is 700 times to take colourity, and COD is 500mg/L, and ammonia nitrogen is 135mg/L sugarcane alcohol biochemical tail water, is made after filtering
For upper prop liquid, in the case where temperature is 22 DEG C, adsorption column is passed through with 4.5BV/h flow, adsorption treatment 120BV waste water adsorbs water outlet
Colourity be 38 times, COD is 35mg/L, and ammonia nitrogen is 16mg/L.After resin adsorption saturation to be adsorbed, using 15% sodium hydroxide
The aqueous solution is desorbed, and temperature 60 C, flow is 2BV/h, obtains regenerated liquid.Regenerated liquid is aoxidized with 2.6% hydrogen peroxide, ferrous sulfate
Qualified discharge after being mixed afterwards with absorption water outlet.
Using commercial resins as a comparison, embodiment 4-7 is seen.
Embodiment 4
Change pyrrolidone containing base polymeric adsorbent in embodiment 1 into strong-acid ion exchange resin 001, other operating conditions
Constant, treating capacity is 20BV.
Embodiment 5
Change pyrrolidone containing base polymeric adsorbent in embodiment 1 into weak-acid ion exchange resin 111, other operating conditions
Constant, treating capacity is 36BV.
Embodiment 6
Change pyrrolidone containing base polymeric adsorbent in embodiment 2 into strong basic ion exchange resin 201, other operating conditions
Constant, treating capacity is 18BV.
Embodiment 7
Change pyrrolidone containing base polymeric adsorbent in embodiment 3 into weak-base ion-exchange resin 301, other operating conditions
Constant, treating capacity is 40BV.
Comparative example 4-7 and embodiment 1-3, it can be seen that select other resins, its treatment effect is substantially than containing pyrrolidines
Ketone group polymeric adsorbent (HP-308) is poor, and treating capacity is more much lower than the resin treatment amount in embodiment 1-3.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of method that alcohol biochemical tail water decolourizes, it is characterised in that comprise the following steps：
(1) pre-process：Filter the alcohol biochemical tail water；
(2) adsorb：Pretreated alcohol biochemical tail water is handled using the ADSORPTION IN A FIXED BED for being filled with sorbing material, wherein, inhale
Enclosure temperature is 10-35 DEG C, and the flow of alcohol biochemical tail water is 0.1-6BV/h；
(3) it is desorbed：The sorbing material that step (2) is treated carries out desorption and regeneration with desorbing agent, regenerated liquid is obtained, wherein described
The flow velocity of desorbing agent is 0.6-3BV/h, and desorption temperature is 40-60 DEG C.
2. according to the method described in claim 1, it is characterised in that：Also including the use of the oxidizing processing regenerated liquid,
Then the step of absorption water outlet obtained with step (2) is discharged after mixing.
3. method according to claim 2, it is characterised in that：The oxidant is hydrogen peroxide and ferrous sulfate.
4. according to the method described in claim 1, it is characterised in that：In step (1), alcohol is cassava alcohol, sugarcane alcohol
With the one or more in corn alcohol.
5. according to the method described in claim 1, it is characterised in that：In step (2), the sorbing material is pyrrolidone containing
Base polymeric adsorbent.
6. according to the method described in claim 1, it is characterised in that：In step (3), the desorbing agent is the water of sodium hydroxide
The aqueous solution of solution or potassium hydroxide.
7. method according to claim 7, it is characterised in that：The mass fraction of the desorbing agent is 10-20%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710711464.7A CN107311330B (en) | 2017-08-18 | 2017-08-18 | Method for decoloring alcohol biochemical tail water |
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| CN201710711464.7A CN107311330B (en) | 2017-08-18 | 2017-08-18 | Method for decoloring alcohol biochemical tail water |
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| CN107311330B CN107311330B (en) | 2021-02-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685244A (en) * | 2022-04-15 | 2022-07-01 | 南京斯拜科生物科技股份有限公司 | Simple and convenient recovery process for ethanol after new resin treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114685244A (en) * | 2022-04-15 | 2022-07-01 | 南京斯拜科生物科技股份有限公司 | Simple and convenient recovery process for ethanol after new resin treatment |
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| Publication number | Publication date |
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| CN107311330B (en) | 2021-02-26 |
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