CN114920408A - Fermentation liquor recycling treatment process - Google Patents
Fermentation liquor recycling treatment process Download PDFInfo
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- CN114920408A CN114920408A CN202210666954.0A CN202210666954A CN114920408A CN 114920408 A CN114920408 A CN 114920408A CN 202210666954 A CN202210666954 A CN 202210666954A CN 114920408 A CN114920408 A CN 114920408A
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- fermentation liquor
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- liquid
- temperature
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- 238000000855 fermentation Methods 0.000 title claims abstract description 40
- 230000004151 fermentation Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004064 recycling Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 238000001179 sorption measurement Methods 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 10
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000002207 metabolite Substances 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000003795 desorption Methods 0.000 claims description 2
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
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Classifications
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F2101/10—Inorganic compounds
-
- 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
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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)
- Physical Water Treatments (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to the technical field of fermentation liquor recycling treatment, and discloses a fermentation liquor recycling treatment process, which comprises the following steps: (1) heating treatment, namely introducing the fermented waste liquid into a heat exchanger through a centrifugal pump for heating processing to obtain high-temperature waste liquid A; (2) solid-liquid separation treatment, namely introducing the high-temperature waste liquid A into a solid-liquid centrifuge through a centrifugal pump to carry out solid-liquid separation treatment and take out solid matters, and pumping the centrifuged supernatant into a filter through the centrifugal pump to remove all insoluble solid matters to obtain a clarified solution B; (3) and (3) decarbonizing, namely guiding the clarifying container into an adsorption decarbonizing device to remove soluble metabolites, and performing high-temperature sterilization treatment to obtain fermentation liquor. The invention is suitable for a fermentation liquor recycling treatment process, and the fermentation liquor treated by the process can be directly recycled to a fermentation system for recycling, thereby achieving the purposes of environmental protection, energy saving and consumption reduction, saving the cost of wastewater treatment and reducing the cost of inorganic salt reconfiguration.
Description
Technical Field
The invention relates to the technical field of fermentation liquor recycling treatment, in particular to a fermentation liquor recycling treatment process.
Background
After fermentation is completed, the fermentation liquor extracted from the fermentation product contains about 5% of inorganic salt and a large amount of organic matters (soluble protein, metabolites and the like), and is standard high-salt high-COD wastewater.
The mainstream treatment method at present is to evaporate the waste water by using a multi-effect evaporator to generate part of solid waste. The process consumes a lot of energy and the equipment is expensive.
Disclosure of Invention
The invention provides a fermentation liquor recycling treatment process, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a process for recycling and treating fermentation liquor comprises the following steps:
(1) heating treatment, namely introducing the fermented waste liquid into a heat exchanger through a centrifugal pump for heating processing to obtain high-temperature waste liquid A;
(2) solid-liquid separation treatment, namely introducing the high-temperature waste liquid A into a solid-liquid centrifuge through a centrifugal pump for solid-liquid separation treatment to take out solid matters, pumping the centrifuged supernatant into a filter through the centrifugal pump to remove all insoluble solid matters, and obtaining a clarified solution B;
(3) and (3) decarbonizing, namely guiding the clarifying container into an adsorption decarbonizing device to remove soluble metabolites, and performing high-temperature sterilization treatment to obtain fermentation liquor.
As a preferred technical scheme of the invention, the outlet temperature of the heat exchanger in the step (1) is 85-90 ℃.
As a preferable technical scheme of the invention, the separation factor of the solid-liquid centrifuge in the step (2) is more than 3500.
As a preferable technical scheme of the invention, the removal rate of the solid-liquid centrifuge in the step (2) is more than 90%.
As a preferable aspect of the present invention, the removal rate of the filter in the step (2) is 99.99%.
As a preferable technical solution of the present invention, the desorption rate of the adsorption carbon remover in the step (3) is 99.99%.
As a preferable technical scheme of the invention, the high-temperature sterilization temperature in the step (3) is 90 +/-5 ℃.
As a preferable technical scheme of the invention, the high-temperature sterilization time in the step (3) is 60-90 seconds.
As a preferred technical scheme of the invention, the filter in the step (2) has one stage, two stages or three stages.
The invention has the following advantages:
the invention is suitable for a fermentation liquor recycling treatment process, and the fermentation liquor treated by the process can be directly recycled to a fermentation system for recycling, thereby achieving the purposes of environmental protection, energy saving and consumption reduction, saving the cost of wastewater treatment and reducing the cost of inorganic salt reconfiguration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a process flow diagram of a process for recycling fermentation broth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In one embodiment, referring to fig. 1, a process for recycling fermentation broth comprises the following steps:
(1) heating, namely introducing the fermented waste liquid into a heat exchanger through a centrifugal pump for heating processing to obtain high-temperature waste liquid A, wherein the outlet temperature of the heat exchanger is 85-90 ℃;
(2) solid-liquid separation treatment, namely introducing the high-temperature waste liquid A into a solid-liquid centrifuge through a centrifugal pump to carry out solid-liquid separation treatment to take out solid matters, pumping the centrifuged supernatant into a filter through the centrifugal pump to remove all insoluble solid matters to obtain a clarified solution B, wherein the separation factor of the solid-liquid centrifuge is more than 3500, the removal rate of the solid-liquid centrifuge is more than 90%, and the removal rate of the filter is 99.99%;
(3) and (3) decarbonizing, namely guiding the clarifying container into an adsorption decarbonizer to remove soluble metabolites, and performing high-temperature sterilization to obtain fermentation liquor, wherein the removal rate of the adsorption decarbonizer is 99.99%, the high-temperature sterilization temperature is 90 +/-5 ℃, and the high-temperature sterilization time is 60-90 seconds.
In one aspect of this embodiment, the number of stages of the filter is one, two, or three, and the number of stages of filtering in this patent may be one, two, or three, which may be selected according to different industrial controls. The adsorption carbon remover can also increase or decrease the stages according to the actual production, and the adsorption carbon remover is equipment mainly comprising activated carbon and can remove most organic matters in an adsorption mode.
In the implementation process of the embodiment, the waste liquid from fermentation enters a storage tank for storage, a centrifugal pump passes the waste liquid through a high-temperature heat exchanger, the temperature of a heat exchange outlet is controlled to be 85-90 ℃, the heated fermentation liquid is subjected to solid-liquid separation through a high-speed solid-liquid centrifuge (the separation factor is greater than 3500) to remove solid substances in the fermentation liquid (the removal rate is greater than 99%), and the centrifuged supernatant is pumped into a two-stage precision filter through the centrifugal pump to remove all insoluble solid substances (the removal rate is 99.99%). Then removing soluble metabolite (removal rate is 99.99%) from the fermentation broth by an adsorption decarbonizer, then feeding the fermentation broth into a high-temperature sterilization system to heat to 90 +/-5 ℃ for 60-90 seconds, and cooling the discharged fermentation broth and then feeding the fermentation broth into a fermentation system.
The invention is suitable for a fermentation liquor recycling treatment process, and the fermentation liquor treated by the process can be directly recycled to a fermentation system for recycling, thereby achieving the purposes of environmental protection, energy saving and consumption reduction, saving the cost of wastewater treatment and reducing the cost of inorganic salt reconfiguration.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (9)
1. A fermentation liquor recycling treatment process is characterized by comprising the following steps:
(1) heating treatment, namely introducing the fermented waste liquid into a heat exchanger through a centrifugal pump for heating processing to obtain high-temperature waste liquid A;
(2) solid-liquid separation treatment, namely introducing the high-temperature waste liquid A into a solid-liquid centrifuge through a centrifugal pump for solid-liquid separation treatment to take out solid matters, pumping the centrifuged supernatant into a filter through the centrifugal pump to remove all insoluble solid matters, and obtaining a clarified solution B;
(3) and (3) decarbonizing, namely guiding the clarifying container into an adsorption decarbonizing device to remove soluble metabolites, and performing high-temperature sterilization treatment to obtain fermentation liquor.
2. The process for recycling and treating fermentation liquor according to claim 1, wherein in the step (1), the outlet temperature of the heat exchanger is 85-90 ℃.
3. The fermentation liquor recycling treatment process according to claim 1, wherein in step (2), the separation factor of the solid-liquid centrifuge is greater than 3500.
4. The process of claim 3, wherein in the step (2), the solid-liquid centrifuge has a removal rate of more than 90%.
5. The process of claim 1, wherein in step (2), the removal rate of the filter is 99.99%.
6. The fermentation liquor recycling treatment process according to claim 1, wherein in the step (3), the desorption rate of the adsorption carbon remover is 99.99%.
7. The fermentation liquor recycling treatment process according to claim 1, wherein in the step (3), the high-temperature killing temperature is 90 ± 5 ℃.
8. The process of claim 7, wherein in step (3), the high-temperature sterilization time is 60-90 seconds.
9. The fermentation liquor recycling treatment process according to claim 1, wherein in step (2), the number of the filter stages is one stage, two stages or three stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210666954.0A CN114920408A (en) | 2022-06-13 | 2022-06-13 | Fermentation liquor recycling treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210666954.0A CN114920408A (en) | 2022-06-13 | 2022-06-13 | Fermentation liquor recycling treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114920408A true CN114920408A (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210666954.0A Pending CN114920408A (en) | 2022-06-13 | 2022-06-13 | Fermentation liquor recycling treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114920408A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544951A (en) * | 2009-04-28 | 2009-09-30 | 江南大学 | Degerming method for recycling somatic cells from amino acid zymotic fluid/extraction waste liquid |
| CN101708915A (en) * | 2009-12-11 | 2010-05-19 | 安徽泰格生物技术股份有限公司 | Pretreatment method before biochemical treatment of fermentation mother liquor |
| CN111362445A (en) * | 2020-04-29 | 2020-07-03 | 吉林中粮生化有限公司 | Method and system for treating polyhydroxyalkanoate fermentation liquor by using adsorbent and application of obtained fermentation waste liquor |
| CN112897785A (en) * | 2021-02-01 | 2021-06-04 | 上海瀛济环境科技有限公司 | Garbage leachate and fermentation biogas slurry wastewater zero-discharge process |
-
2022
- 2022-06-13 CN CN202210666954.0A patent/CN114920408A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544951A (en) * | 2009-04-28 | 2009-09-30 | 江南大学 | Degerming method for recycling somatic cells from amino acid zymotic fluid/extraction waste liquid |
| CN101708915A (en) * | 2009-12-11 | 2010-05-19 | 安徽泰格生物技术股份有限公司 | Pretreatment method before biochemical treatment of fermentation mother liquor |
| CN111362445A (en) * | 2020-04-29 | 2020-07-03 | 吉林中粮生化有限公司 | Method and system for treating polyhydroxyalkanoate fermentation liquor by using adsorbent and application of obtained fermentation waste liquor |
| CN112897785A (en) * | 2021-02-01 | 2021-06-04 | 上海瀛济环境科技有限公司 | Garbage leachate and fermentation biogas slurry wastewater zero-discharge process |
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Application publication date: 20220819 |