CN109553238A - A kind of processing method of Food Industry Wastewater - Google Patents
A kind of processing method of Food Industry Wastewater Download PDFInfo
- Publication number
- CN109553238A CN109553238A CN201811540586.5A CN201811540586A CN109553238A CN 109553238 A CN109553238 A CN 109553238A CN 201811540586 A CN201811540586 A CN 201811540586A CN 109553238 A CN109553238 A CN 109553238A
- Authority
- CN
- China
- Prior art keywords
- food industry
- processing method
- industry wastewater
- flocculation treatment
- wastewater according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
-
- 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
Landscapes
- 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)
Abstract
The present invention relates to a kind of processing methods of Food Industry Wastewater to belong to field of waste water treatment more particularly for the reprocessing technology of the waste water of fermentation bean curd production.The technique includes: to carry out fermentation tofu wastewater after flocculating twice, and the waste residue to flocculate may be used as feed, while recycle to obtain small molecular protein using nanofiltration membrane.
Description
Technical field
The present invention relates to a kind of processing methods of Food Industry Wastewater, more particularly for the useless of fermentation bean curd production
The reprocessing technology of water, belongs to field of waste water treatment.
Background technique
As the improvement of people's living standards, the safety of food is more concerned about in the case where meeting to food nutrition,
Start to pursue green, additive-free, pure natural food.Bean curd is one of the food being favored by people, good and cheap,
It is full of nutrition convenient.
Fermented bean curd is a kind of exclusive traditional fermented food in China, is a kind of good appetizing food.Its preparation step master
If: bean curd production → prior fermentation → later stage fermentation → dress altar (or bottling) → finished product.
Wherein, prior fermentation is mouldy process, i.e. the process of bean curd culture Mucor or head mold, fermentation the result is that making beans
Rotten base covers with mycelia, forms soft, fine and closely woven and tough and tensile epithelium and simultaneously has accumulated a large amount of protease, to incite somebody to action in later stage fermentation
Protein slowly hydrolyzes.Later stage fermentation is to make corruption using various microbial actions in the Mucor and ingredient grown in bean curd
It is newborn mature, form the processes such as the process of color, including dress altar, filling soup, storage.
After the technique of fermentation has carried out, a large amount of bean curd fermentation waste water can be generated, it is therefore desirable to provide a kind of preferable
Utilize method.
Summary of the invention
The present invention provides the reprocessing technologies of the waste water of fermentation bean curd production.
A kind of processing method of Food Industry Wastewater, includes the following steps:
Step 1 carries out the first flocculation treatment to the waste water of fermentation bean curd production, and isolates body refuse；
Step 2 carries out the second flocculation treatment to the clear liquid of the first flocculation treatment, and isolates body refuse；
Step 3 carries out concentration after nanofiltration concentrate concentration, drying using nanofiltration membrane to the clear liquid of the second flocculation treatment and obtains
To small molecular protein；
As recycling feed reuse again after the body refuse drying that flocculation in the step 1 and step 2 obtains.
Concentration is using evaporation and concentration in the step 3.
The molecular cut off of nanofiltration membrane is 200-800Da.
The molecular cut off of nanofiltration membrane is 400Da.
The pH condition of first flocculation treatment is 3~6；The pH condition of second flocculation treatment is 8~10.
Drying process is using spray drying.
First flocculation treatment is using chlorination ferric flocculant.
The polysilicon acid flocculant that first flocculation treatment uses.
Beneficial effect
In this patent technique can waste water obtained in effective processed soybeans fermentation process, and obtain feed and albumen.
Specific embodiment
The production waste water of following embodiment processing carrys out waste water obtained in bean curd fermentation process.
Embodiment 1
S1: it comes from waste water obtained in bean curd fermentation process and carries out primary flocculation centrifuge separation, after adjusting pH is 4~5, using chlorine
Change ferric flocculant to be handled, additional amount 150ppm, COD 31000 mg/L, ammonia nitrogen 2140mg/ of a centrifuge clear liquid
L；It adjusts after pH is 8~9, carries out secondary flocculation centrifuge separation, using the flocculation of polysilicon acid flocculant, additional amount 50ppm is secondary
28000 mg/L of COD, 2023 mg/L of ammonia nitrogen of clear liquid after the centrifuge that flocculates separates；The protein content of centrifugation drying recycling
32.1%。
S2: secondary centrifuging machine clear liquid enters nanofiltration membrane system, and nanofiltration retaining molecular weight is 200Da, and operating pressure is
2.0MPa, it is 25L/(hm that film, which filters average flux,2), 13270 mg/L of COD, 1032 mg/L of ammonia nitrogen in nanofiltration membrane clear liquid；
Nanofiltration dope is by obtaining the product containing small molecular protein, purity 37.3% after evaporation spray drying.
Embodiment 2
S1: it comes from waste water obtained in bean curd fermentation process and carries out primary flocculation centrifuge separation, after adjusting pH is 3~4, using chlorine
Change ferric flocculant to be handled, additional amount 100ppm, COD 26000 mg/L, ammonia nitrogen 1750mg/ of a centrifuge clear liquid
L；It adjusts after pH is 8~9, carries out secondary flocculation centrifuge separation, using the flocculation of polysilicon acid flocculant, additional amount 40ppm is secondary
23400 mg/L of COD, 1563 mg/L of ammonia nitrogen of clear liquid after the centrifuge that flocculates separates；The protein content of centrifugation drying recycling
36.3%。
S2: secondary centrifuging machine clear liquid enters nanofiltration membrane system, and nanofiltration retaining molecular weight is 300Da, and operating pressure is
2.5MPa, it is 31L/(hm that film, which filters average flux,2), COD11720mg/L, 859 mg/L of ammonia nitrogen in nanofiltration membrane clear liquid；Nanofiltration
Dope is by obtaining the product containing small molecular protein, purity 42.5% after evaporation spray drying.
Embodiment 3
S1: it comes from waste water obtained in bean curd fermentation process and carries out primary flocculation centrifuge separation, after adjusting pH is 4~5, using chlorine
Change ferric flocculant to be handled, additional amount 250ppm, COD 21540 mg/L, ammonia nitrogen 1430mg/ of a centrifuge clear liquid
L；It adjusts after pH is 8~9, carries out secondary flocculation centrifuge separation, using the flocculation of polysilicon acid flocculant, additional amount 70ppm is secondary
17330 mg/L of COD, 1248 mg/L of ammonia nitrogen of clear liquid after the centrifuge that flocculates separates；The protein content of centrifugation drying recycling
37.3%。
S2: secondary centrifuging machine clear liquid enters nanofiltration membrane system, and nanofiltration retaining molecular weight is 200Da, and operating pressure is
3.0MPa, it is 27L/(hm that film, which filters average flux,2), COD 9550 mg/L, ammonia nitrogen 824mg/L in nanofiltration membrane clear liquid,；It receives
Filter dope is by obtaining the product containing small molecular protein, purity 45.7% after evaporation spray drying.
Claims (8)
1. a kind of processing method of Food Industry Wastewater, which comprises the steps of:
Step 1 carries out the first flocculation treatment to the waste water of fermentation bean curd production, and isolates body refuse；
Step 2 carries out the second flocculation treatment to the clear liquid of the first flocculation treatment, and isolates body refuse；
Step 3 carries out concentration after nanofiltration concentrate concentration, drying using nanofiltration membrane to the clear liquid of the second flocculation treatment and obtains
To small molecular protein；
As recycling feed reuse again after the body refuse drying that flocculation in the step 1 and step 2 obtains.
2. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that be concentrated in the step 3
It is using evaporation and concentration.
3. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that the molecular cut off of nanofiltration membrane
It is 200-800Da.
4. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that the molecular cut off of nanofiltration membrane
It is 400Da.
5. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that the pH item of the first flocculation treatment
Part is 3~6；The pH condition of second flocculation treatment is 8~10.
6. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that drying process is using spray
Mist is dry.
7. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that the first flocculation treatment used
It is chlorination ferric flocculant.
8. the processing method of Food Industry Wastewater according to claim 1, which is characterized in that the first flocculation treatment used
Polysilicon acid flocculant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540586.5A CN109553238A (en) | 2018-12-17 | 2018-12-17 | A kind of processing method of Food Industry Wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540586.5A CN109553238A (en) | 2018-12-17 | 2018-12-17 | A kind of processing method of Food Industry Wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109553238A true CN109553238A (en) | 2019-04-02 |
Family
ID=65870131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811540586.5A Pending CN109553238A (en) | 2018-12-17 | 2018-12-17 | A kind of processing method of Food Industry Wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109553238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110713319A (en) * | 2019-11-04 | 2020-01-21 | 武汉纪源环保科技有限公司 | Fermentation production wastewater treatment system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367534A (en) * | 1970-09-16 | 1974-09-18 | Pont Brule Sa De | Process for the treatment of waters containing proteins |
| CN1336333A (en) * | 2001-09-25 | 2002-02-20 | 清华同方股份有限公司 | Membrane separation process of treating soybean processing waste water |
| CN103012580A (en) * | 2012-12-07 | 2013-04-03 | 成都连接流体分离科技有限公司 | Method for recycling of soybean whey wastewater by membrane separation technology |
| CN105271576A (en) * | 2015-11-10 | 2016-01-27 | 中国科学院海洋研究所 | Wastewater treatment method in agar production |
| CN107500475A (en) * | 2017-09-18 | 2017-12-22 | 湖南城头山红薯食品科技有限公司 | The method of wastewater treatment and processing system of sweet potato vermicelli |
-
2018
- 2018-12-17 CN CN201811540586.5A patent/CN109553238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1367534A (en) * | 1970-09-16 | 1974-09-18 | Pont Brule Sa De | Process for the treatment of waters containing proteins |
| CN1336333A (en) * | 2001-09-25 | 2002-02-20 | 清华同方股份有限公司 | Membrane separation process of treating soybean processing waste water |
| CN103012580A (en) * | 2012-12-07 | 2013-04-03 | 成都连接流体分离科技有限公司 | Method for recycling of soybean whey wastewater by membrane separation technology |
| CN105271576A (en) * | 2015-11-10 | 2016-01-27 | 中国科学院海洋研究所 | Wastewater treatment method in agar production |
| CN107500475A (en) * | 2017-09-18 | 2017-12-22 | 湖南城头山红薯食品科技有限公司 | The method of wastewater treatment and processing system of sweet potato vermicelli |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110713319A (en) * | 2019-11-04 | 2020-01-21 | 武汉纪源环保科技有限公司 | Fermentation production wastewater treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170295837A1 (en) | Methods for the production and use of myceliated high protein food compositions | |
| US5185166A (en) | Process for the production of milk mineral concentrate and drink containing minerals | |
| US20130287928A1 (en) | Production of soluble protein products from pulses | |
| AU2016200058B2 (en) | Improved production of protein solutions from soy | |
| CN105063153B (en) | A kind of preparation method of food-grade low salt ocean fish oligopeptide powder | |
| EP1133238A1 (en) | Method for preparing a protein composition and an infant formula containing same | |
| CN111387497B (en) | High-sialic acid instant bird's nest product and sterilization and preparation method thereof | |
| JP2011527182A (en) | Production of soluble canola protein isolate | |
| CN102020705A (en) | Method for preparing spirulina protein isolate | |
| CN100423646C (en) | Process for reclaiming lactoalbumin from waste liquid of casein industrial production | |
| CN109553238A (en) | A kind of processing method of Food Industry Wastewater | |
| CN101756159A (en) | Soy sauce desalting method | |
| US6335043B1 (en) | Method for extracting soybean proteins using an enzyme | |
| CN106119328A (en) | A kind of high-quality shrimp oligopeptide powder, preparation method thereof of applicable industrialized production | |
| KR20120079100A (en) | Canola protein product from supernatant | |
| CN109762862B (en) | Preparation method of high-purity lotus seed protein oligopeptide | |
| CN105154506B (en) | A kind of food-grade low salt ocean fish oligopeptide powder and its application | |
| US4086366A (en) | Production of vodka | |
| CN104419220A (en) | Method for high-efficiency extraction of pumpkin pigments | |
| US20120101259A1 (en) | Counter-current extraction of oil seed protein source | |
| CN105831734A (en) | Method of gradient in-series membrane concentration for bone extract liquid | |
| WO2007049831A1 (en) | Manufacturing method of wine by using filtered water of bean-curd and wine manufactured thereby | |
| CN104672299A (en) | Corn starch process water protein recovery technique | |
| WO2007055435A1 (en) | Manufacturing method of vinegar by using filtered water of bean-curd and vinegar manufactured thereby | |
| CN107674900A (en) | A kind of process using series connection film concentration Soybean Peptide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190402 |
|
| WD01 | Invention patent application deemed withdrawn after publication |