CN109160622A - One primary yeast evaporation condensate processing method and its dedicated unit - Google Patents
One primary yeast evaporation condensate processing method and its dedicated unit Download PDFInfo
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- CN109160622A CN109160622A CN201811160370.6A CN201811160370A CN109160622A CN 109160622 A CN109160622 A CN 109160622A CN 201811160370 A CN201811160370 A CN 201811160370A CN 109160622 A CN109160622 A CN 109160622A
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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
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to technical field for the treatment of of organic waste, specifically a kind of yeast evaporative condenser liquid processing method.The present invention is handled using sand carbon system, rolled film ultrafiltration system, rolled film counter-infiltration system, and efficient sand carbon system in the case where not adding medicament, can improve the operation stability of device and reduce capacity of resisting impact load；It is handled using rolled film ultra filtration unit, is effectively stripped of 30% or more COD, ammonia nitrogen in waste water, reduce reverse osmosis units processing load；Advanced treating is carried out using rolled film reverse osmosis units, is effectively stripped of 70% or more COD, 90% or more ammonia nitrogen further improves the quality of gained water, allows to carry out reuse.The present invention can handle the yeast evaporation condensed water of high COD, high ammonia nitrogen, multiple types, and concise in technology is reasonable, and effluent quality is good, device compact layout, is convenient for automation control, while the recycling of waste water may be implemented again, effectively realizes the recycling of waste water.
Description
Technical field
The present invention relates to technical field for the treatment of of organic waste, specifically a kind of yeast evaporative condenser liquid processing method and its specially
Use device.
Background technique
In recent years, Chinese food yeast production industry keeps higher growth momentum.Only 2014, yeast total output was just
Reached 320,000 tons, annual growth is about 12.3%.The high gravity fermentation waste liquid generated in Yeast Fermentation Process is evaporated by MVR
After device processing, concentrate can become yeast dry powder by spray drying, but generate a large amount of evaporation condensate.
The evaporation condensate main component be Yeast protein and vitamin, formic acid etc., have high COD, high ammonia nitrogen, low pH and
The features such as high chroma is a kind of organic wastewater difficult to deal with.Currently, the evaporation condensate can not carry out cleansing and recycling processing,
It is typically directly discharged as waste liquid, is handled by sewage treatment plant, cause the significant wastage of water resource.
To sum up, for the evaporative condenser in the processing of the COD of high concentration, high ammonia-nitrogen wastewater, especially yeast production
The processing of liquid is badly in need of wanting a kind for the treatment of process of the recycling of novel realization yeast evaporation condensate.
Summary of the invention
In order to solve the above technical problems existing in the prior art, the present invention provides primary yeast evaporation condensate processing
Method and its dedicated unit, are achieved through the following technical solutions:
One primary yeast evaporation condensate processing unit, including wastewater disposal basin (1) and wastewater disposal basin (1) tail end pass through piping connection
The first pump (2), with the first pump (2) outlet end by the sand canister (3) of piping connection, pass through piping connection with sand canister the
Two pumps (4), have the inlet tank (6) of refrigeration machine (5) by piping connection with the second pump discharge end, pass through pipeline with inlet tank (6)
The third of connection pumps (7), the rolled film ultra filtration unit (8) being connected with third pump (7) outlet end, rolled film ultra filtration unit (8)
It is connect with intermediate water tank (9) by pipeline, the 4th pump (10) that intermediate water tank (9) outlet end is connected by pipeline, with the 4th pump
(10) the rolled film reverse osmosis units (11) that outlet end is connected, rolled film reverse osmosis units (11) and drainage reservoir (12).
Preferably, reuse unit (13) are also connected with after the drainage reservoir (12).By drainage reservoir (12) and there is reuse
Unit (13) connection can make that treated, and yeast evaporation condensate is directly entered reuse unit recycles.
One primary yeast evaporation condensate processing method evaporates yeast using the yeast evaporative condenser liquid processing device
Condensate liquid is handled.It is specific the following steps are included:
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph6-8, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
It is by refrigeration machine (5) in water tank (6), waste water is cooling；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment is carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12).
Preferably, its ph of the adjusting of the step a is to adjust ph to 6.5-7.5.Ph is excessively high all to influence COD with too low
Removal effect, COD removal effect of the ph in 6.5-7.5 be preferable.
Preferably, in the step c that waste water is cooling, it is that the temperature of waste water is down to 5-40 DEG C.Temperature is excessively high and mistake
It is low to damage filter membrane, the performance of filter membrane is influenced, waste water is smaller to the damage of film at a temperature of this, and film is enable to be used for a long time, whole
System for handling temperature can be handled persistently.
Preferably, the rolled film, organic film material are Kynoar, polytetrafluoroethylene (PTFE), polyamide therein one
Kind.Kynoar, polytetrafluoroethylene (PTFE), polyamide are all the common used materials of rolled film, and with the rolled film of its organic film material
Reverse osmosis treatment effect it is preferable.
Preferably, the hyperfiltration treatment, operating pressure are not higher than 0.3MPa.Hypertonia can shadow in process of ultrafiltration treatment
The filtration of ultrafiltration is rung, overall effect is preferable when operating pressure is not higher than 0.3MPa.
Preferably, the reverse osmosis treatment, operating pressure are not less than 0.8MPa.When operating pressure is lower than 0.8MPa, meeting
The speed for influencing reverse osmosis treatment causes to produce water speed and water yield decline, and COD and ammonia nitrogen removal effect are also poor.
Current yeast evaporation condensate, usual COD concentration reach 2000mg/L or more, and ammonia nitrogen concentration reaches 100mg/L
More than, coloration reaches 200 times or more, pH≤2, the waste water of temperature >=45 DEG C, it is difficult to be handled.
Compared with prior art, the technical effect of the invention is embodied in:
1, the theme process flow of the invention is using sand carbon system, rolled film ultrafiltration system, rolled film reverse osmosis
Permeable system is handled, and is enabled efficient sand carbon system in the case where not adding medicament, is improved the operation stability of device
With reduction capacity of resisting impact load.
2, the invention uses the processing of rolled film ultra filtration unit, so that being effectively stripped of waste water in the unit
In 30% or more COD, ammonia nitrogen, improve the quality of waste water, reduce yeast wastewater processing cost, reduce reverse osmosis units
Handle load.
3, the invention uses rolled film reverse osmosis units as advanced treating, so that effectively removing in the unit
70% or more COD, 90% or more ammonia nitrogen further improve the quality of recycle-water, ensure that yeast fermentation water
Quality.
In conclusion the present invention can handle the yeast evaporation condensed water of high COD, high ammonia nitrogen, multiple types, concise in technology is closed
Reason, effluent quality is good, device compact layout, is convenient for automation control, while the recycling of waste water may be implemented again, effectively
Realize the recycling of waste water.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of the invention.
In figure: 1- wastewater disposal basin；2- first is pumped；3- sand canister；4- second is pumped；5- refrigeration machine；6- water tank inlet；7- third
Pump；8- rolled film ultra filtration unit；9- intermediate water tank；10- the 4th is pumped；11- rolled film reverse osmosis units；12- drainage storage pool；
13- reuse unit.
Specific embodiment
It is limited below with reference to specific embodiment technical solution of the present invention is further, but claimed
Range is not only limited to made description.
Yeast evaporative condenser liquid processing device is assembled, including wastewater disposal basin (1) and wastewater disposal basin (1) tail end pass through piping connection
The first pump (2), with the first pump (2) outlet end by the sand canister (3) of piping connection, pass through piping connection with sand canister the
Two pumps (4), have the inlet tank (6) of refrigeration machine (5) by piping connection with the second pump discharge end, pass through pipeline with inlet tank (6)
The third of connection pumps (7), the rolled film ultra filtration unit (8) being connected with third pump (7) outlet end, rolled film ultra filtration unit (8)
It is connect with intermediate water tank (9) by pipeline, the 4th pump (10) that intermediate water tank (9) outlet end is connected by pipeline, with the 4th pump
(10) the rolled film reverse osmosis units (11) that outlet end is connected, rolled film reverse osmosis units (11) and drainage reservoir (12).
Embodiment 1
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph to 7, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 25 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.2MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.0MPa.
The rolled film, organic film material are Kynoar.
Embodiment 2
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph to 6, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 5 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.1MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 0.8MPa.
The rolled film, organic film material are Kynoar.
Embodiment 3
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph to 8, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 40 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.3MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.2MPa.
The rolled film, organic film material are Kynoar.
Embodiment 4
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjusted its ph to 6.5, stir
It mixes uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 25 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.2MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.0MPa.
The rolled film, organic film material are Kynoar.
Embodiment 5
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjusted its ph to 7.5, stir
It mixes uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 25 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.2MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.0MPa.
The rolled film, organic film material are Kynoar.
Embodiment 6
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph to 7, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 25 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.2MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.0MPa.
The rolled film, organic film material are politef.
Embodiment 7
One primary yeast evaporation condensate processing method is included the following steps: using above-mentioned apparatus
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph to 7, stirred
Uniformly；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
C. will by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), into
By refrigeration machine (5) in water tank (6), the temperature of waste water is down to 25 DEG C；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit
(8) hyperfiltration treatment, hyperfiltration treatment operating pressure 0.2MPa are carried out in；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), warp
Reverse osmosis produced water after crossing rolling membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12), reverse osmosis treatment
Operating pressure 1.0MPa.
The rolled film, organic film material are polyamide.
The method that 1-7 group uses embodiment 1-7 handles the evaporation condensate of Hubei Province's yeast processing company,
COD content is 2000-3000mg/L, ammonia-nitrogen content 100-150mg/L, coloration 200-300mg/L in its waste water.
8 groups of methods for using embodiment 1 are handled the evaporation condensate of Guangxi yeast processing company, waste water
Middle COD content is 2000-2500mg/L, ammonia-nitrogen content 100-130mg/L, coloration 200-250mg/L.
Processing result is counted, specific as follows:
From the foregoing, it will be observed that being 2000-3000mg/ with the COD content of method of the invention to Hubei Province's yeast processing company
L, when the evaporation condensate that ammonia-nitrogen content 100-150mg/L, coloration are 200-300mg/L is handled, wastewater treatment capacity is equal
More than 144t/d, the COD content of water is in 600mg/L hereinafter, ammonia-nitrogen content is in 20mg/L hereinafter, the removing of COD after processing
Rate has reached 79% or more, and the removal efficiency of ammonia nitrogen has reached 87% or more, and the coloration of treated water is only original
1/20th；It is 2000-2500mg/L, ammonia nitrogen with the COD content of method of the invention to Hubei Province's yeast processing company
When the evaporation condensate that content is 100-130mg/L, coloration is 200-250mg/L is handled, wastewater treatment capacity 240t/d,
After processing the COD content of water in 500mg/L hereinafter, ammonia-nitrogen content in 13mg/L hereinafter, the removal efficiency of COD reached 80% with
On, the removal efficiency of ammonia nitrogen has reached 87% or more, and the coloration of treated water is only original 1/20th,
Using direct recycling as yeast processing water.
From the foregoing, it will be observed that method of the invention can handle the yeast evaporation condensed water of high COD, high ammonia nitrogen, multiple types, it is discharged water
Matter is good, and the recycling of waste water may be implemented, effectively realize the recycling of waste water.
Finally it is pointed out that above embodiments are only the more representational examples of the present invention.Obviously, technology of the invention
Scheme is not limited to above-described embodiment, and acceptable there are many deformations.Those skilled in the art can be from disclosed by the invention
All deformations that content is directly exported or associated, are considered as protection scope of the present invention.
Claims (9)
1. a primary yeast evaporation condensate processing unit, which is characterized in that pass through including wastewater disposal basin (1), with wastewater disposal basin (1) tail end
First pump (2) of piping connection passes through the sand canister (3) of piping connection with the first pump (2) outlet end, passes through pipeline with sand canister
Second pump (4) of connection, has the inlet tank (6) of refrigeration machine (5) with the second pump discharge end, with inlet tank (6) by piping connection
(7) are pumped by the third of piping connection, the rolled film ultra filtration unit (8) being connected with third pump (7) outlet end, rolled film ultrafiltration
Unit (8) is connect with intermediate water tank (9) by pipeline, the 4th pump (10) that intermediate water tank (9) outlet end is connected by pipeline, with
The rolled film reverse osmosis units (11) that 4th pump (10) outlet end is connected, rolled film reverse osmosis units (11) and drainage reservoir
(12)。
2. yeast evaporative condenser liquid processing device according to claim 1, which is characterized in that after the drainage reservoir (12)
It is also connected with reuse unit (13).
3. a primary yeast evaporation condensate processing method, which is characterized in that evaporated using yeast of any of claims 1 or 2 cold
Lime set processing unit handles yeast evaporation condensate.
4. yeast evaporative condenser liquid processing method according to claim 3, which comprises the following steps:
A. evaporative condenser waste water is stored in wastewater disposal basin (1), puts into spent caustic solution thereto, adjust its ph6-8, stirring is equal
It is even；
B. the waste water stirred evenly is delivered in sand canister (3) by the first pump (2)；
It c. will be by the waste water of sand canister (3) processing, by the effect of the second pump (4), into water tank inlet (6), in water inlet water
It is by refrigeration machine (5) in case (6), waste water is cooling；
D. by waste water after cooling in water tank inlet (6) under the action of third pumps (7), into rolled film ultra filtration unit (8)
Carry out hyperfiltration treatment；
E. the ultrafiltration after rolled film ultra filtration unit (8) hyperfiltration treatment is produced into water and enters intermediate water tank (9)；
F. by the water of intermediate water tank (9) under the action of the 4th pump (10), into rolled film reverse osmosis units (11), through pulleying
Reverse osmosis produced water after formula membrane reverse osmosis unit (11) reverse osmosis treatment enters in drainage storage pool (12).
5. yeast evaporative condenser liquid processing method according to claim 4, which is characterized in that the adjusting of the step a its
Ph is to adjust ph to 6.5-7.5.
6. yeast evaporative condenser liquid processing method according to claim 4, which is characterized in that will give up in the step c
Water is cooling, is that the temperature of waste water is down to 5-40 DEG C.
7. yeast evaporative condenser liquid processing method according to claim 4, which is characterized in that the rolled film, it is organic
Membrane material is that Kynoar, polytetrafluoroethylene (PTFE), polyamide are one such.
8. yeast evaporative condenser liquid processing method according to claim 4, which is characterized in that the hyperfiltration treatment, behaviour
Make pressure not higher than 0.3MPa.
9. yeast evaporative condenser liquid processing method according to claim 4, which is characterized in that the reverse osmosis treatment,
Operating pressure is not less than 0.8MPa.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268841A (en) * | 2020-02-25 | 2020-06-12 | 苏州翔铭化工设备有限公司 | Method for desalting yeast drum wastewater |
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