CN109987806A - A kind of greasy filth cleaning and recovery method based on food waste grease - Google Patents
A kind of greasy filth cleaning and recovery method based on food waste grease Download PDFInfo
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- CN109987806A CN109987806A CN201910157942.3A CN201910157942A CN109987806A CN 109987806 A CN109987806 A CN 109987806A CN 201910157942 A CN201910157942 A CN 201910157942A CN 109987806 A CN109987806 A CN 109987806A
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- food waste
- greasy filth
- waste grease
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- recovery method
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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
- C02F11/00—Treatment of sludge; Devices therefor
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Fats And Perfumes (AREA)
- Cosmetics (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention provides a kind of greasy filth cleaning and recovery method based on food waste grease, it is characterised in that: using food waste grease as raw material, carbon source is used as after high-temperature sterilization, is configured to nutrient solution, proper amount of strains is seeded in the nutrient solution of fermentor and carries out fermentation 3-5 days.Using fermentation liquid as washing lotion, the parameter (liquid-solid ratio, temperature, revolving speed, pH and time) of cleaning operation is controlled, the oily ingredient in greasy filth is cleaned into washing lotion, is demulsified finally by high speed centrifugation, the oil in washing lotion is separated and recovered out.One aspect of the present invention can reduce the harm of food waste grease and oily sludge to environment, on the other hand, it can be achieved that the recycling of oil.The simple process, operating condition is mild, and whole process realizes waste treatment and waste, and turns waste into wealth, not only save the cost but also environmental-friendly.
Description
Technical field
The invention belongs to greasy filth to clean field, and in particular to a kind of food waste oil resourceization is used for the side of greasy filth clean and reuse
Method.
Background technique
Kitchen garbage refers to swill, the sanitary waste etc. that resident is formed during personal consumption.As its people pass through
The growth of Ji and the sustainable development of catering industry, the yield of China's kitchen garbage constantly increase.According to statistics, National urban in 2011
House refuse is up to 1.64 hundred million tons, and wherein the content of kitchen garbage is more than 30%.Kitchen garbage is different from other house refuses,
Itself is not only easy to produce stench and causes environmental pollution, but also its waste oil quilt rich in nutriments such as grease, starch, protein
The illegal businessman in part recycles operation of making profit, and a series of events being detrimental to health such as gutter oil, swill pig is caused to generate.
Traditional changing food waste into resources Land use systems are that kitchen garbage is carried out to water-oil separating, and waste oil recycles conduct
Industrial chemicals produces fatty acid, soap, glycerol etc., and rest part carries out producing methane through anaerobic fermentation.This processing mode recycling
Degree is not high, and is also easy to produce secondary pollution.Therefore, by kitchen garbage, food waste grease especially therein carries out depth resource
Change processing is the inexorable trend for complying with economic development and environmental requirement.
Oily sludge is the accompanying input of oil exploitation and process of manufacture, is one of primary pollution source of Petroleum Production,
It is also a great problem for influencing oil field and surrounding enviroment quality.The method of processing greasy filth mainly includes solvent extraction both at home and abroad at present
It takes, solidify, being pyrolyzed, biodegrade and burning etc., but the input cost of these methods is big or easily cause other secondary pollutions.Phase
Compared with for, for washing method as one of Conventional treatments, input cost is few, simple process.As effective group in washing method
Point, surfactant mainly has 2 kinds of effects: first is that the dissolution using micella improves the apparent dense of slightly solubility organic pollutant
Degree, i.e. solubilization；Second is that can adsorb or be enriched in the interface of oily phase and water phase since surfactant has amphiphilic group
On, reduce interfacial tension.Compared with synthetic surfactant, the biosurfactant that is obtained by micro-organisms because
Have many advantages, such as that nontoxic, energy is biodegradable, pollution-free and good biocompatibility receives significant attention.Though biosurfactant
Good application prospect so is shown in multiple fields, but high cost seriously constrains its further application.Thus, it finds
It is very necessary that cheap raw material reduces biosurfactant production cost.
Summary of the invention
In view of food waste grease environment easy to pollute and resource utilization is low and disposal of oily sludge is at high cost status, this
Invention proposes a kind for the treatment of of wastes with processes of wastes against one another, and by the method for food waste grease level resource utilization, food waste grease is used for biofermentation, then
The fermentation liquid that will be enriched in surfactant is directly used in the clean and reuse of oil product in greasy filth, on the one hand alleviates kitchen garbage and oil-containing
On the other hand sludge realizes the clean and reuse of oily ingredient in greasy filth to city environmental pollution bring pressure, realize food waste oil
The treatment of wastes with processes of wastes against one another of rouge and oily sludge, turns waste into wealth.
Technical scheme is as follows: taking suitable food waste grease, carbon source is used as after high-temperature sterilization, is configured to nutrition
Liquid, and the pH for adjusting nutrient solution is 8.0.Proper amount of strains is seeded in the nutrient solution of fermentor, setting fermentation temperature is 37 DEG C,
Ventilation Rate 0.2vvm, stirring rate 300r/min.Using the fermentation liquid after fermenting 3-5 days as washing lotion, carry out subsequent
Greasy filth cleaning.
Take a certain amount of greasy filth in beaker, the washing lotion of corresponding amount be added, control cleaning operation parameter (liquid-solid ratio, temperature,
Revolving speed, pH and time), the oily ingredient in greasy filth is cleaned into washing lotion, is demulsified finally by high speed centrifugation, it will be in washing lotion
Oil separates and recovers out.
Strain of the present invention is surfactant producing bacteria kind, includes but are not limited to pseudomonas aeruginosa, withered grass
Bacillus, clostridium acetobutylicum etc..
The fermentation broth component (g/L) that the present invention uses: sodium chloride 5.00, ammonium sulfate 1.00, magnesium sulfate 0.25,
Sodium nitrate 2.00, potassium dihydrogen phosphate 1.00, dipotassium hydrogen phosphate 1.00, yeast extract 5.00, food waste grease 20.00.
The optimal cleaning parameters that the present invention uses are as follows: pH=10,63 DEG C of temperature, time 35min, revolving speed 450r/min, liquid
Admittedly comparing 5:1.
The centrifuge speed that the present invention uses is not less than 13000r/min.
Identified, the active principle of cleaning mud oil is single double mouse in the fermentation liquid that the present invention uses food waste oil fermentation to obtain
Lee's Glycolipid mixture, specific composition are as shown in the table:
The rhamnolipid component table that 1 liquid chromatography-mass spectrography of table measures
As seen from table, constituent mainly has 6 kinds.Wherein, Rha-C10-C10Content highest, ratio 50.86%；
Rha-Rha-C10-C10Take second place, value 34.20%.
The present invention has the advantage that
1, using food waste grease as raw material, it is used for greasy filth clean and reuse after biofermentation, on the one hand can reduce food waste oil
The harm of rouge and oily sludge to environment, on the other hand, it can be achieved that the recycling of oil.Whole process realizes waste treatment and waste, and becomes useless
For treasured, not only save the cost but also environmental-friendly.
2, using biological fermentation process by the food waste oil resource in kitchen garbage, fermentation condition is mild, treatment process letter
It is single.
3, fermentation liquid is directly used for greasy filth clean and reuse, without being purified to surfactant therein, be further simplified
Treatment process and cost.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is fermentation system schematic diagram of the invention.
1 it is in the figure fermentor, 2 be blender, 3 be control cabinet, 4 is air compressor.
Fig. 2 is by the greasy filth comparative diagram of fermentation liquid of the present invention cleaning front and back, and a is the greasy filth photo before cleaning, b
For the greasy filth photo after cleaning.
Specific embodiment
As shown in Figure 1, fermentation system is made of fermentor 1, blender 2, control cabinet 3, air compressor 4.Of the invention
Implementation method is as follows:
Embodiment one
Take appropriate food waste waste oil as raw material from the recycling dining car of school lunch service, through 121 DEG C of high-pressure sterilizing pot sterilizings 15
Minute.Prepare 5L nutrient solution, every liter of formula are as follows: sodium chloride 5.00g, ammonium sulfate 1.00g, magnesium sulfate 0.25g, sodium nitrate 2.00g,
Potassium dihydrogen phosphate 1.00g, dipotassium hydrogen phosphate 1.00g, yeast extract 5.00g, food waste grease 20.00g, pH=8.0.After activation
Pseudomonas aeruginosa seed liquor is seeded in fermentor 1 according to 5% inoculative proportion, by control cabinet 3 to stirring motor 2, sky
Air compressor 4, tank bottom heating coil etc. are controlled, and the temperature being arranged in fermentor is 37 DEG C, Ventilation Rate 0.2vvm, stirring
Rate is 300r/min.
Using the greasy filth of the drilling well field in Neijiang City in Sichuan Province Weiyuan oil field as cleaning object, the fermentation liquid after fermenting three days is made
For washing lotion, according to liquid-solid ratio 5:1,63 DEG C of cleaning temperature, scavenging period 35min, revolving speed 450r/min clean the operation item of pH10
Part carries out greasy filth clean and reuse.
Crude oil recovery rate is calculated according to following formula:
Crude oil recovery rate=1- (M1-M2)/M1
Wherein M1 is the crude content before washing in greasy filth, and M2 is the crude content after washing in greasy filth.
It is computed, the rate of recovery of greasy filth Crude Oil is 71% under the above conditions.
The greasy filth appearance control of cleaning front and back is as shown in Figure 2.
Embodiment two
It is carried out according to embodiment one, but greasy filth is Xinjiang oil field mud, remaining is as in the first embodiment, its crude oil recovery rate is
84%.
Embodiment three
It is carried out according to embodiment one, but food waste grease is family's kitchen waste oil, remaining is as in the first embodiment, its crude oil recovery rate
It is 78%.
The present invention is using waste as feedstock processing oily sludge, simple process, mild condition, before having very strong application
Scape.Above-described embodiment is illustrated for the present invention is feasible, and the scope of the patents of the invention is not limiting as, all without departing from this hair
Bright equivalence enforcement or change, should be included in this case the scope of the patents.
Claims (6)
1. a kind of greasy filth cleaning and recovery method based on food waste grease is used as carbon using food waste grease as raw material after high-temperature sterilization
Source is configured to nutrient solution, and proper amount of strains is seeded in the nutrient solution of fermentor and carries out fermentation 3-5 days.Using fermentation liquid as washing
Liquid controls the parameter (liquid-solid ratio, temperature, revolving speed, pH and time) of cleaning operation, the oily ingredient in greasy filth is cleaned to washing lotion
In, it is demulsified finally by high speed centrifugation, the oil in washing lotion is separated and recovered out.
2. a kind of greasy filth cleaning and recovery method based on food waste grease according to claim 1, it is characterised in that: used
Strain be surfactant producing bacteria kind, include but are not limited to pseudomonas aeruginosa, bacillus subtilis, clostridium acetobutylicum
Deng.
3. a kind of greasy filth cleaning and recovery method based on food waste grease according to claim 1, it is characterised in that: used
Fermentation temperature be 37 DEG C, Ventilation Rate 0.2vvm, stirring rate 300r/min.
4. a kind of greasy filth cleaning and recovery method based on food waste grease according to claim 1, it is characterised in that: used
Fermentation broth component (g/L): sodium chloride 5.00, ammonium sulfate 1.00, magnesium sulfate 0.25, sodium nitrate 2.00, di(2-ethylhexyl)phosphate
Hydrogen potassium 1.00, dipotassium hydrogen phosphate 1.00, yeast extract 5.00, food waste grease 20.00, pH=8.0.
5. a kind of greasy filth cleaning and recovery method based on food waste grease according to claim 1, it is characterised in that: use
Optimal cleaning parameters are as follows: pH=10,63 DEG C of temperature, time 35min, revolving speed 450r/min, liquid-solid ratio 5:1.
6. a kind of greasy filth cleaning and recovery method based on food waste grease according to claim 1, it is characterised in that: used
Centrifuge speed be not less than 13000r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910157942.3A CN109987806A (en) | 2019-03-02 | 2019-03-02 | A kind of greasy filth cleaning and recovery method based on food waste grease |
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| CN201910157942.3A CN109987806A (en) | 2019-03-02 | 2019-03-02 | A kind of greasy filth cleaning and recovery method based on food waste grease |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662853A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院成都生物研究所 | Kitchen waste biological drying stabilizing microbial agent and preparation method and application thereof |
| CN114958820A (en) * | 2022-05-11 | 2022-08-30 | 西南石油大学 | Water-soluble natural wax dissolving agent and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662853A (en) * | 2020-07-17 | 2020-09-15 | 中国科学院成都生物研究所 | Kitchen waste biological drying stabilizing microbial agent and preparation method and application thereof |
| CN114958820A (en) * | 2022-05-11 | 2022-08-30 | 西南石油大学 | Water-soluble natural wax dissolving agent and preparation method and application thereof |
| CN114958820B (en) * | 2022-05-11 | 2023-10-31 | 西南石油大学 | Water-soluble natural wax-dissolving agent and preparation method and application thereof |
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