CN106348523A - Method for treating waste water from food industry - Google Patents
Method for treating waste water from food industry Download PDFInfo
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- CN106348523A CN106348523A CN201610749362.XA CN201610749362A CN106348523A CN 106348523 A CN106348523 A CN 106348523A CN 201610749362 A CN201610749362 A CN 201610749362A CN 106348523 A CN106348523 A CN 106348523A
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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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
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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
-
- 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
- C02F1/52—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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- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
-
- 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
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F3/30—Aerobic and anaerobic processes
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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)
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a method for treating waste water from the food industry, which includes the steps of: A. Waste water flows through aplurality of grilles and is flocculated and added with air via blowing, and then is settled; B. First waste water is sterilized with ultraviolet, whose pH is adjusted to 5.5-7.5 with base; C. Waste water flows into an anaerobic aeration tank and an aerobic tank, and next is treated by the oxygen film bioreactor, and then is filtered by an activated carbon filter and by a ultrafiltration membrane filter, finally is settled; D. Waste water is filtered firstly by a cartridge filter, and then by a microfiltration membrane filtration process, filtering by a ultrafiltration membrane filter, and finally by a reverse osmosis membrane filter, to obtain the discharge water in accordance with the environmental standard. Compared with the prior art, the method for treating waste water from the food industry is a simple, convenient and fast method for neutralizing waste water from the food industry, as well as a method for removing suspended solids, metal oxides, colloids, organic matters, nitrogen source materials and bacteria, etc., which not only can be used for economically, efficiently treating a large amount of waste water, with simple operation procedures, low operating costs, and smaller covering area, but also have remarkable treatment effects.
Description
Technical field
The present invention relates to chemical field, more particularly, to a kind of processing method of industrial wastewater.
Background technology
In recent years, with the fast development of China's industry, the industry such as some chemical industry, pharmacy, papermaking, food, fermentation is discharged
Substantial amounts of high solubility sulfate-containing organic wastewater is in natural, ecological water body.In water body, excessive sulfate not only can make water body
Smelly, water quality degenerates, and can strongly limit the growth of aquatile and plant, causes the salination of Soil Surrounding, in a word
Water body that it leads to, being on the rise and cause the extensive concern of people of soil pollution just change.
Industrial wastewater refers to waste water, sewage and the waste liquid producing in industrial processes, wherein contains the work outflowing with water
Industry produces the pollutant producing in materials, intermediate product and product and production process.Develop rapidly with industrial, waste water
Type and quantity rapidly increase, and the pollution to water body is also increasingly extensively and serious, threatens the health and safety of the mankind.
Industrial wastewater generally has following three kinds to classify:
The first is the chemical property classification by major pollutants contained in industrial wastewater, containing based on inorganic pollution being
Inorganic wastewater, containing based on organic pollution for organic wastewater.The waste water of such as electroplating wastewater and the mineral course of processing, is inorganic
Waste water；Food or the waste water of petroleum refining process, are organic wastewater.
Second is to classify by the product of industrial undertaking and processing object, and such as Metallurgical Waste Water, paper waste, coke-oven gas give up
Water, pickling of metal waste water, chemical fertilizer waste water, textile printing and dyeing wastewater, waste water from dyestuff, leather-making waste water, agricultural chemicals waste water, power station waste water
Deng.
The third is the main component classification by pollutant contained in waste water, such as acid waste water, alkaline waste water, give up containing cyanogen
Water, chromate waste water, cadmium wastewater, mercury-containing waste water, phenol wastewater, aldehyde-containing sewage, oily waste water, sulfur-containing waste water, containing organophosphors give up
Water and radioactive wastewater etc..
First two classification method is not related to the main component of contained pollutant in waste water, nor the hazardness showing waste water.
The third classification method, it is manifestly intended that in waste water major pollutants composition, can be shown that the certain hazardness of waste water.In addition also have
From the difficulty of wastewater treatment and the hazardness of waste water, major pollutants in waste water are summarized as three classes: the first kind is useless
Heat, essentially from cooling water, cooling water can be with reuse；Equations of The Second Kind is Conventional pollution, i.e. no overt toxicity and be easy to biological
The material of degraded, including biodegradable Organic substance, can be used as the compound of biological nutrient, and suspended solid etc.；The
Three classes are toxic pollutant, that is, contain toxic and be difficult biodegradable material, including heavy metal, toxic compounds be difficult
Organic compound being biodegradable etc..
Existing food industry process for treating industrial waste water and system economical, effectively can not process chemical industry discharge in a large number
Sewage.
Content of the invention
The technical problem to be solved is that offer is a kind of can discharge in economic, efficient, a large amount of process food industry
The processing method of the food industrial wastewater of acid organic sewage and high treating effect.
The technical scheme is that
A kind of processing method of food industrial wastewater, it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through multiple grid, then drain into Sedimentation tank, add flocculant to be flocculated, and be blown into
Air, then carry out settlement treatment, that is, obtain the supernatant of industrial wastewater；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, go
Eliminate the unusual smell, then adjusted its ph to 5.5-7.5 with alkali, be i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed using anaerobe
Macromole carbon source material therein and macromole nitrogen source, then pass to Aerobic Pond, using little in aerobic bacteria Decomposition Wastewater
Molecule carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, so
Add reducing agent afterwards, filtration treatment is carried out using activated carbon filtering technique, then carries out settlement treatment, that is, the industry after being filtered
Waste water；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is carried out filtration treatment using security personnel's filtering technique, then adopt
Carry out filtration treatment with micro-filtrate membrane filtration technique, then filtration treatment is carried out using ultrafiltration membrance filter technique, finally adopt anti-seepage membrane
Filtering technique carries out filtration treatment, you can obtain the discharge water meeting environmental protection standard.
On the basis of technique scheme, the present invention can also do following improvement.
As a kind of preferred implementation of the present invention, in step a, the grid gap of multiple described grid is gradually reduced.
As another kind of preferred implementation of the present invention, in step a, described flocculant is ferrous chloride, addition
For 10-60ppm.
As another kind of preferred implementation of the present invention, into Sedimentation tank, in step a, it is blown into the sky of 10-20min
Gas.
As another kind of preferred implementation of the present invention, in step a, settlement treatment 10-40min.
As another kind of preferred implementation of the present invention, in stepb, described alkali is sodium hydroxide.
As another kind of preferred implementation of the present invention, in step c, control the reaction zone of facultative aerobic membrane bioreactor
Interior activated sludge concentration is 2000-6000mg/l, makes facultative aerobic membrane bioreactor hydraulic detention time be 6-9 hour.
Activated carbon as another kind of preferred implementation of the present invention, in step c, in described activated carbon filtering technique
For granular active carbon.
As another kind of preferred implementation of the present invention, in step c, settlement treatment 20-60min.
As another kind of preferred implementation of the present invention, in step d, described security personnel's filtering technique is filtered using security personnel
Device, described micro-filtrate membrane filtration technique adopts microporous filtration, and described ultrafiltration membrance filter technique adopts ultrafiltration membrane filter, described
Reverse osmosis membrane filtration process adopts reverse osmosis membrane filt.
Compared with prior art, the invention has the beneficial effects as follows:
The food industrial wastewater that the inventive method can either neutralize slant acidity reaches the discharge of industrial wastewater pH-value
Standard, again can carbon source material effectively in Decomposition Wastewater and nitrogen source, can also effectively remove float in eliminating water, metal
The impurity such as oxide, colloid, antibacterial, not only can process food industrial wastewater, simple to operate, running cost economical, efficiently, in a large number
With low, save floor space, easily realize automatically controlling, and obvious processing effect, the discharge water obtaining complies fully with environmental protection row
Put standard.
Below the preferred forms of the present invention are described in further details.
A kind of processing method of food industrial wastewater, it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through the multiple grid that grid gap is gradually reduced, then drain into Sedimentation tank, add 10-
The flocculant (ferrous chloride) of 60ppm is flocculated, and is blown into the air of 10-20min, then carries out settlement treatment 10-40min,
Obtain the supernatant of industrial wastewater；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, go
Eliminate the unusual smell, then adjusted its ph to 5.5-7.5 with alkali (sodium hydroxide), be i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed using anaerobe
Macromole carbon source material therein and macromole nitrogen source, then pass to Aerobic Pond, using little in aerobic bacteria Decomposition Wastewater
Molecule carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, control
Activated sludge concentration in the reaction zone of facultative aerobic membrane bioreactor processed is 2000-6000mg/l, makes facultative aerobic membrane bioreactor
Hydraulic detention time is 6-9 hour, is subsequently adding reducing agent, was carried out using activated carbon filtering technique (adopting granular active carbon)
Filter is processed, then carries out settlement treatment 20-60min, that is, the industrial wastewater after being filtered；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is filtered using security personnel's filtering technique (cartridge filter)
Process, then filtration treatment is carried out using micro-filtrate membrane filtration technique (microporous filtration), then (super using ultrafiltration membrance filter technique
Membrane filter) carry out filtration treatment, finally filtration treatment is carried out, that is, using reverse osmosis membrane filtration process (reverse osmosis membrane filt)
The discharge water meeting environmental protection standard can be obtained.
Specific embodiment
Hereinafter the principle and feature of the present invention is described, example is served only for explaining the present invention, is not intended to limit
Determine the scope of the present invention.
Embodiment 1
A kind of processing method of food industrial wastewater, it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through the multiple grid that grid gap is gradually reduced, then drain into Sedimentation tank, add 10ppm's
Flocculant (ferrous chloride) is flocculated, and is blown into the air of 10min, then carries out settlement treatment 10min, that is, obtain industrial wastewater
Supernatant；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, go
Eliminate the unusual smell, then adjusted its ph to 5.5 with alkali (sodium hydroxide), i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed using anaerobe
Macromole carbon source material therein and macromole nitrogen source, then pass to Aerobic Pond, using little in aerobic bacteria Decomposition Wastewater
Molecule carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, control
Activated sludge concentration in the reaction zone of facultative aerobic membrane bioreactor processed is 2000mg/l, so that facultative aerobic membrane bioreactor waterpower is stopped
Stay the time to be 6 hours, be subsequently adding reducing agent, filtration treatment is carried out using activated carbon filtering technique (adopting granular active carbon),
Carry out settlement treatment 20min, that is, the industrial wastewater after being filtered again；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is filtered using security personnel's filtering technique (cartridge filter)
Process, then filtration treatment is carried out using micro-filtrate membrane filtration technique (microporous filtration), then (super using ultrafiltration membrance filter technique
Membrane filter) carry out filtration treatment, finally filtration treatment is carried out, that is, using reverse osmosis membrane filtration process (reverse osmosis membrane filt)
The discharge water meeting environmental protection standard can be obtained.
Embodiment 2
A kind of processing method of food industrial wastewater, it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through the multiple grid that grid gap is gradually reduced, then drain into Sedimentation tank, add 35ppm's
Flocculant (ferrous chloride) is flocculated, and is blown into the air of 15min, then carries out settlement treatment 25min, that is, obtain industrial wastewater
Supernatant；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, go
Eliminate the unusual smell, then adjusted its ph to 6.5 with alkali (sodium hydroxide), i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed using anaerobe
Macromole carbon source material therein and macromole nitrogen source, then pass to Aerobic Pond, using little in aerobic bacteria Decomposition Wastewater
Molecule carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, control
Activated sludge concentration in the reaction zone of facultative aerobic membrane bioreactor processed is 4000mg/l, so that facultative aerobic membrane bioreactor waterpower is stopped
Stay the time to be 7.5 hours, be subsequently adding reducing agent, carried out at filtration using activated carbon filtering technique (adopting granular active carbon)
Reason, then carry out settlement treatment 40min, that is, the industrial wastewater after being filtered；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is filtered using security personnel's filtering technique (cartridge filter)
Process, then filtration treatment is carried out using micro-filtrate membrane filtration technique (microporous filtration), then (super using ultrafiltration membrance filter technique
Membrane filter) carry out filtration treatment, finally filtration treatment is carried out, that is, using reverse osmosis membrane filtration process (reverse osmosis membrane filt)
The discharge water meeting environmental protection standard can be obtained.
Embodiment 3
A kind of processing method of food industrial wastewater, it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through the multiple grid that grid gap is gradually reduced, then drain into Sedimentation tank, add 60ppm's
Flocculant (ferrous chloride) is flocculated, and is blown into the air of 20min, then carries out settlement treatment 40min, that is, obtain industrial wastewater
Supernatant；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, go
Eliminate the unusual smell, then adjusted its ph to 7.5 with alkali (sodium hydroxide), i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed using anaerobe
Macromole carbon source material therein and macromole nitrogen source, then pass to Aerobic Pond, using little in aerobic bacteria Decomposition Wastewater
Molecule carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, control
Activated sludge concentration in the reaction zone of facultative aerobic membrane bioreactor processed is 6000mg/l, so that facultative aerobic membrane bioreactor waterpower is stopped
Stay the time to be 9 hours, be subsequently adding reducing agent, filtration treatment is carried out using activated carbon filtering technique (adopting granular active carbon),
Carry out settlement treatment 60min, that is, the industrial wastewater after being filtered again；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is filtered using security personnel's filtering technique (cartridge filter)
Process, then filtration treatment is carried out using micro-filtrate membrane filtration technique (microporous filtration), then (super using ultrafiltration membrance filter technique
Membrane filter) carry out filtration treatment, finally filtration treatment is carried out, that is, using reverse osmosis membrane filtration process (reverse osmosis membrane filt)
The discharge water meeting environmental protection standard can be obtained.
Embodiment 4
Respectively environmental protection standard detection is carried out to the discharge water obtaining in embodiment 1 to 3, testing result is as follows:
The inventive method not only economical, efficient, a large amount of can process the acid organic sewages that food industry is discharged, and locates
Reason effect is good, and as seen from the above table, food industrial wastewater, after the disposal methods of the food industrial wastewater in the present invention, obtains
To discharge water comply fully with environmental emission standard, in waste water, the clearance of cod can reach more than 98%, bod5Clearance can arrive
Reach more than 97%, the clearance of inorganic salt can reach more than 97%.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of processing method of food industrial wastewater is it is characterised in that it comprises the following steps:
A, initial filter and sedimentation
First food industrial wastewater is flowed through multiple grid, then drain into Sedimentation tank, add flocculant to be flocculated, and be blown into sky
Gas, then carry out settlement treatment, that is, obtain the supernatant of industrial wastewater；
B, ultraviolet sterilization and regulation pH-value
Industrial wastewater supernatant described in step a is entered acid-alkali accommodation pond, first carries out sterilizing with ultraviolet, remove different
Taste, then adjusted its ph to 5.5-7.5 with alkali, i.e. industrial wastewater after adjusted pH-value；
C, bacterial decomposition and activated carbon filter
The industrial wastewater adjusting after pH-value described in step b is first passed through anaerobism Aeration tank, is decomposed wherein using anaerobe
Macromole carbon source material and macromole nitrogen source, then pass to Aerobic Pond, using the small molecule in aerobic bacteria Decomposition Wastewater
Carbon source material and small molecule nitrogen source, recycle facultative aerobic membrane bioreactor to process the waste water flowing out from Aerobic Pond, Ran Houjia
Enter reducing agent, filtration treatment is carried out using activated carbon filtering technique, then carry out settlement treatment, that is, the Industry Waste after being filtered
Water；
D, membrane filtration
First the industrial wastewater after the filtration described in step c is carried out filtration treatment using security personnel's filtering technique, then adopt micro-
Membrane filtration technique carries out filtration treatment, then carries out filtration treatment using ultrafiltration membrance filter technique, finally adopts reverse osmosis membrane filtration
Technique carries out filtration treatment, you can obtain the discharge water meeting environmental protection standard.
2. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step a, multiple described
The grid gap of grid is gradually reduced.
3. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step a, described flocculation
Agent is ferrous chloride, and addition is 10-60ppm.
4. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step a, to Sedimentation tank
Inside it is blown into the air of 10-20min.
5. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step a, settlement treatment
10-40min.
6. it is characterised in that in stepb, described alkali is the processing method of food industrial wastewater according to claim 1
Sodium hydroxide.
7. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step c, control and oxygen
Activated sludge concentration in the reaction zone of membrane bioreactor is 2000-6000mg/l, so that facultative aerobic membrane bioreactor waterpower is stopped
The time is stayed to be 6-9 hour.
8. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step c, described activity
Activated carbon in charcoal filtering technique is granular active carbon.
9. the processing method of food industrial wastewater according to claim 1 is it is characterised in that in step c, settlement treatment
20-60min.
10. the processing method of the food industrial wastewater according to any one of claim 1-9 is it is characterised in that in step d
In, described security personnel's filtering technique adopts cartridge filter, and described micro-filtrate membrane filtration technique adopts microporous filtration, described ultrafiltration
Membrane filtration process adopts ultrafiltration membrane filter, and described reverse osmosis membrane filtration process adopts reverse osmosis membrane filt.
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| CN107721026A (en) * | 2017-11-25 | 2018-02-23 | 王兆国 | A kind of process for treating industrial waste water |
| CN108164092A (en) * | 2018-01-14 | 2018-06-15 | 许苏楠 | A kind of chemical engineering sewage treatment process |
| CN108373239A (en) * | 2018-04-10 | 2018-08-07 | 佛山市三水万瑞达环保科技有限公司 | sewage treatment process |
| CN108503130A (en) * | 2018-03-08 | 2018-09-07 | 陈琪雯 | A kind of novel environment friendly sewage treatment process |
| CN108911380A (en) * | 2018-07-09 | 2018-11-30 | 周正培 | Food Industry Wastewater treatment process and its device |
| CN109879386A (en) * | 2019-03-22 | 2019-06-14 | 长沙如洋环保科技有限公司 | A kind of food industry wastewater treatment process |
| CN110759761A (en) * | 2019-11-07 | 2020-02-07 | 云南嘉谷环保有限公司 | Biological treatment method for waste vegetable leaves |
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| CN106966553A (en) * | 2017-05-05 | 2017-07-21 | 广汉海天洁诚水务有限公司 | A kind of full film processing system of reusing sewage |
| CN107721026A (en) * | 2017-11-25 | 2018-02-23 | 王兆国 | A kind of process for treating industrial waste water |
| CN108164092A (en) * | 2018-01-14 | 2018-06-15 | 许苏楠 | A kind of chemical engineering sewage treatment process |
| CN108503130A (en) * | 2018-03-08 | 2018-09-07 | 陈琪雯 | A kind of novel environment friendly sewage treatment process |
| CN108373239A (en) * | 2018-04-10 | 2018-08-07 | 佛山市三水万瑞达环保科技有限公司 | sewage treatment process |
| CN108911380A (en) * | 2018-07-09 | 2018-11-30 | 周正培 | Food Industry Wastewater treatment process and its device |
| CN109879386A (en) * | 2019-03-22 | 2019-06-14 | 长沙如洋环保科技有限公司 | A kind of food industry wastewater treatment process |
| CN109879386B (en) * | 2019-03-22 | 2021-12-31 | 贵州鑫吉瑞环境科技有限公司 | Food industry wastewater treatment process |
| CN110759761A (en) * | 2019-11-07 | 2020-02-07 | 云南嘉谷环保有限公司 | Biological treatment method for waste vegetable leaves |
| CN116874101A (en) * | 2023-06-27 | 2023-10-13 | 中国科学院广州能源研究所 | A method of using endogenous flora to reduce the organic matter and total nitrogen content of biogas slurry |
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