A kind of aerobic high-heat compost fermentation function yeast culture medium preparation method
Technical field
The invention belongs to biological technical field, relate to a kind of aerobic high-heat compost fermentation function yeast culture medium preparation, the high concentrated organic wastewater that particularly utilizes foodstuffs industry to discharge is prepared the method for aerobic During High-Temperature Composting fermentation function yeast substratum.
Background technology
Along with the high speed development of foodstuffs industry, the useless poor high concentrated organic wastewater that reaches of the waste residue of generation has caused huge pressure to environmental protection.Industry is produced as monosodium glutamate monosodium glutamate waste liquor rich in proteins, amino acid, thalline and NH
4 +, K
+, Na
+, Mg
2+, Ca
2+, Fe
2+, Cl
-, SO
4 2-, PO
4 3-Deng mineral ion, and for example the bean product waste liquid contains 17 seed amino acids, 1.6% solid substance, its COD
CrReach more than 20000~25000mg/L, all belong to high concentrated organic wastewater, if directly discharging can cause serious environmental to pollute, if by the pollution treatment discharging, its working cost brings white elephant to enterprise.
On the other hand, the pollution that brings of livestock and poultry cultivation development is serious day by day.In its main control measures, making the best buy fertilizer by the aerobic high-heat fermentation maturity is to be worth the effective way advocated energetically: (1) owing to carry out the batch production large-scale production, so the amount of dissolving of manure of livestock and poultry is big, and the processing efficiency height; (2) manure of livestock and poultry is made the high-quality fertilizer, makes wherein energy and nutrient obtain recycle, resource utilization degree height; (3) organic fertilizer product made of manure of livestock and poultry thermophilic fermentation, not only contain N, P, K and trace element and directly provide these nutritive substances for crop, and be good soil redeposition, the a considerable number of soil ulmin that it is contained, it is complicated degradable polymer organic colloidal matter, humic acid wherein etc. can directly promote plant-growth, can also improve the exchange capacity and the moisture retention of soil after being manured into soil, adsorb necessary for plant growth nitrogen, phosphorus, potassium and trace element effectively, keep the lasting fertility of soil; Contain a large amount of bacteriums, actinomycetes and fungi in the organic fertilizer product, not only increase these microbial numbers in the soil, new microbial population also is provided.Simultaneously, this fertilizer still is a kind of novel slowly-releasing source of manure.It is reported that organic commercial fertilizer nitrogen leaching in soilless substrate discharges steadily slow than chemical fertilizer.Therefore this organic fertilizer product meets non-polluted farm product and the special-purpose fertile requirement of green agricultural product production.Obviously, utilize manure of livestock and poultry to produce the special-purpose fertilizer of green agricultural product and be not only the effective way of administering the manure of livestock and poultry pollution, and will provide important material guarantee, realize changing rejected material to useful resource, the benign cycle of protection Agro-ecology for " making green agriculture ".
Microorganism in the manure of livestock and poultry aerobic composting process mainly has two sources, and the one, a large amount of microbial populations of inherent in the manure of livestock and poultry; The 2nd, be fermenting agent from the function bacterial classification of artificial adding.The different entrained microbial population type difference in the source of manure of livestock and poultry are bigger, and iff utilizing indigenous flora to carry out compost fermentation, often compost heats up slowly, and the composting time is long, the organic fertilizer production cycle stretch-out, and manufacturing enterprise's benefit is low.According to the Microbiological Principle in the composting fermentation process, separate, screen the bacterial classification of difference in functionality, making fermentation function microbial inoculum through artificial compound cultivation inoculates manure of livestock and poultry, can not only quicken the composting process, shorten the compost time, can also control malodorous generation, reduce nitrogen loss, improve the quality of finished product fertilizer.
At present, manure of livestock and poultry fermenting agent commercialization has in the world been squeezed into China market as EM, the enzymatic microorganism of Japan, and domestic also have the analogous products listing, but the microbial inoculum selling at exorbitant prices, the enzymatic microorganism price per ton of Japan is up to 200,000 yuan.According to estimates, the microbial inoculum cost is up to 20~60% of the fertilizer total cost.The microbial inoculum cost of great number makes the performance of enterprises low even profitless, and enterprise is difficult to sustainable development.Obviously, developing the function microbial inoculum that efficiently ferments of the manure of livestock and poultry with independent intellectual property right, reduce the production cost of fermentation function yeast, make enterprise have microbial inoculum throughput, is the important channel of breaking through restriction fertilizer enterprise development bottleneck.
The main raw material of its substratum of existing fermentation function yeast such as subtilis (Bacillus subtilis) is: sucrose, starch, dregs of beans, manganous sulfate, dipotassium hydrogen phosphate, potassium primary phosphate etc.A kind of bacillus subtilis bacterium culture medium of optimization is: starch 0.3%, sucrose 0.5%, the MnSO of 30.8mg/kg
40.2%,, KzHPO
40.3%, KHzPO
40.15%, dregs of beans 3%, PH7.0-7.5 (" fodder industry " 2004 the 25th the 7th phases of volume, the optimization of fermentation of bacillus subtilis process).
The objective of the invention is to: the high concentrated organic wastewater of foodstuffs industry discharging effectively is used in the cultivation of aerobic high-heat compost fermentation function yeast, reduces the production cost of fermentation function yeast, and the high concentrated organic wastewater of dissolving.
Summary of the invention
The aerobic high-heat compost fermentation function yeast culture medium preparation method that the present invention proposes is: adopt the yellow swill of discharging in the bean product production, or remaining glutamate wastewater after the L-glutamic acid production, or the mixed solution of yellow swill and glutamate wastewater is mixed into three kinds of liquid nutrient mediums with water as the nutritive ingredient in the substratum respectively with above-mentioned three kinds of nutritive ingredients.
The fermentation function yeast that is used to cultivate by the substratum of present method preparation comprises: subtilis, Bacillus licheniformis, soak numb genus bacillus, Trichodermareesei and series bacillus.
Can in three kinds of liquid nutrient mediums, add sucrose 5~30 grams respectively.
As preferred subtilis culture medium prescription be: contain 300 milliliters of yellow swills in every liter of substratum, sucrose 20 grams, surplus is a water.
As preferred Bacillus licheniformis culture medium prescription be: contain 300 milliliters of yellow swills in every liter of substratum, 50 milliliters of glutamate wastewaters, sucrose 10 grams, surplus is a water.
As preferably soaking numb bacillus culture medium prescription be: contain 200 milliliters of yellow swills in every liter of substratum, 25 milliliters of glutamate wastewaters, sucrose 5 grams, surplus is a water.
As preferred Trichodermareesei culture medium prescription be: contain 300 milliliters of yellow swills in every liter of substratum, sucrose 10 grams, surplus is a water.
As preferred series bacillus culture medium prescription be: contain 200 milliliters of yellow swills in every liter of substratum, 100 milliliters of glutamate wastewaters, surplus is a water.
Embodiment
In order to specify embodiments of the present invention and to prove its result of use, collected the substratum of West Lake Gourmet Powder Factory monosodium glutamate waste liquid (glutamate wastewater), Hangzhou bean product Food Co., Ltd yellow swill preparation fermentation function yeast, after measured, the essential nutrient contents of two kinds of waste liquids is as shown in table 1.
N, the P of two kinds of organic liquid wastes of table 1, K nutrient content
Nutrient | Monosodium glutamate waste liquid | Yellow swill |
Full N (g/L) | ????12.73 | ????0.70 |
Full P (mg/L) | ????167.18 | ????98.93 |
Full K (g/L) | ????20.7 | ????0.75 |
Embodiment 1: bacillus subtilis bacterium culture medium compound method:
Get 300 milliliters of yellow swills, do not add glutamate wastewater, add sucrose 20 grams, add water to 1000 milliliters of constant volumes.
Used preceding 121 ℃ of vapor sterilizations 20 minutes, insert Bacillus subtilis strain after being cooled to 30 ℃, putting into vibration shaking table incubator cultivates for 20~30 ℃ and regulates ventilation than being 1: 1, make the relative value of oxygen dissolving value be not less than 20, keep pH to be not less than 6.5, shaking culture played sampling in per 4 hours in 20 hours and detects the gemma rate of formation once, and cultivating and detecting the gemma rate of formation in 32 hours is 97%, finish to cultivate, measuring viable count with the plate live bacterial count is 2.4 * 10
13/ milliliter.
Embodiment 2: Bacillus licheniformis substratum compound method:
Contain 300 milliliters of yellow swills in per 1000 milliliters of substratum, 50 milliliters of glutamate wastewaters, sucrose 10 grams, surplus is a water.
Cultural method and process are with embodiment 1.Cultivate end in 24 hours, detecting the gemma rate of formation is 97.4%, and measuring viable count with the plate live bacterial count is 1.7 * 10
13/ milliliter.
Embodiment 3: soak numb bacillus culture medium compound method:
Contain 200 milliliters of yellow swills in per 1000 milliliters of substratum, 25 milliliters of glutamate wastewaters, sucrose 5 grams, surplus is a water.
Cultural method and process are with embodiment 1.Cultivate end in 24 hours, detecting the gemma rate of formation is 97.6%, and measuring viable count with the plate live bacterial count is 2.5 * 10
13/ milliliter.
Embodiment 4: Trichodermareesei substratum compound method:
Contain 300 milliliters of yellow swills in per 1000 milliliters of substratum, do not add glutamate wastewater, add sucrose 10 grams, surplus is a water.
Cultural method and process are with embodiment 1.Cultivate end in 48 hours, measuring viable count with the plate live bacterial count is 2.7 * 10
12/ milliliter.
Embodiment 5: series bacillus substratum compound method:
Contain 200 milliliters of yellow swills in per 1000 milliliters of substratum, 100 milliliters of glutamate wastewaters, not with sucrose, surplus is a water.
Cultural method and process are with embodiment 1.Cultivate end in 48 hours, detecting the gemma rate of formation is 97.7%, and measuring viable count with the plate live bacterial count is 2.7 * 10
13/ milliliter.
A kind of aerobic high-heat fermentation function yeast culture medium preparation method provided by the invention, yellow swill and two kinds of high concentrated organic wastewaters of glutamate wastewater of foodstuffs industry discharging have been utilized, add or do not add a spot of sucrose, need not to use other compositions such as starch, dregs of beans, effectively reduce production cost, rationally utilize waste resource, alleviate environmental protection pressure, and provide the function bacterial classification that ferments cheaply for the improvement of holding fowl breed pollution again.