CN109824391A - A kind of tylosin dreg compost method of resource - Google Patents
A kind of tylosin dreg compost method of resource Download PDFInfo
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- CN109824391A CN109824391A CN201910233636.3A CN201910233636A CN109824391A CN 109824391 A CN109824391 A CN 109824391A CN 201910233636 A CN201910233636 A CN 201910233636A CN 109824391 A CN109824391 A CN 109824391A
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Abstract
The present invention provides a kind of tylosin dreg compost method of resource, belongs to hazardous waste recycling field.Comprise the concrete steps that: tylosin dreg handles 0.5~3h first at 90~170 DEG C, and 5%~30%H is added by solid-to-liquid ratio 1:1~4:1 later2O2Continue to handle 1.5~4h at 90~170 DEG C until moisture content is reduced to 20~40%；Tylosin dreg uses sawdust, mushroom bran, rubbish from cooking as auxiliary material after pretreatment, and is inoculated with hot fermentation microbial inoculum and carries out compost, and heap body hot stage heap body core temperature is greater than 55 DEG C and holding 8 days or more；Material handles 1~4h at 100~170 DEG C after compost.Operation of the present invention is simple, easy, and tylosin removal effect is good in tylosin dreg, while meeting organic fertilizer standard, high-quality can be made and without environmental risk organic fertilizer.
Description
Technical field
The present invention relates to solid waste disposals and resource technology field, refer in particular to a kind of tylosin dreg heap fertile resource
Change method.
Background technique
A kind of tylosin, macrolide antibiotics by Microbe synthesis, is made an addition to feed addictive extensively, is used
Livestock disease is caused simultaneously by bacterium (such as gram-positive bacterium) in prevention and treatment, tylosin can also play certain
Promote the effect of the growth and development of domestic animal.However, will inevitably generate a kind of organic solid in tylosin production process
Waste-tylosin dreg.Its nutritional ingredient rich in, microorganism catabolite and a small amount of remaining antibiotic,
It such as deals with improperly, will lead to remaining antibiotic and spread in the environment such as soil, surface water even underground water, while antibiotic is anti-
Property bacterium will cause the environmental risk of antibiotics resistance gene.
As the byproduct of tylosin production process, tylosin dreg yield is huge.According to investigations, the safe happy bacterium in Shandong
1 ton of tylosin of the plain every production of factory will generate 12 tons of tylosin dregs.In China, from 2008, antibiotic bacterium dregs
By for hazardous solid waste, disposition must comply with biomass pyrolytic, burning, landfill and relevant hazardous waste processing side
Formula.Wherein, the main method as processing antibiotic bacterium dregs is burned, residual antibiotic can be quickly converted to carbon dioxide and nitrogen
Oxide etc..But antibiotic burning disposal is costly at present (it is estimated that being 4000 yuan/ton), causes 1 ton of every production safe happy
Rhzomorph production cost will increase nearly 50000 yuan.Therefore, from the viewpoint of sustainable, safe pleasure can be effectively treated by finding one kind
Rhzomorph bacteria residue residual antibiotic, and the method that can realize tylosin dreg resource utilization, have important practical significance.
Compost is a kind of tradition and economic and environment-friendly method, can convert debirs to valuable organic soil and change
Good dose.In this process, organic matter is degraded to stable humus, is a kind of to clean cheap product.In addition, research table
Bright compost can also effectively remove remaining antibiotic in matrix, be more than 70% to most antibiotic removal rates, part antibiotic
(macrolides) can be more than 95%, therefore the present invention is directed to develop 1 set of processing tylosin dreg compost method of resource, weight
Removal of the point for tylosin in tylosin dreg.
Summary of the invention
The present invention provides a kind of tylosin dreg compost method of resource, can by hazardous waste tylosin dreg into
Row recycling forms organic fertilizer, provides certain reference for antibiotic bacterium dregs method of resource from now on.
A kind of tylosin dreg compost method of resource, it is characterised in that:
(1) tylosin dreg need to be pre-processed, i.e., 0.5~3h is handled at 90~170 DEG C, press solid-to-liquid ratio 1 later:
5%~30%H is added in 1~4:12O2Continue to handle 1.5~4h at 90~170 DEG C until moisture content is reduced to 20~40%；
(2) tylosin dreg should use sawdust, mushroom bran, rubbish from cooking as auxiliary material after pre-processing, and be inoculated with high temperature hair
Yeast-like fungi agent carries out compost, and heap body hot stage heap body core temperature is greater than 55 DEG C and holding 8 days or more；
(3) material handles 1~4h at 100~170 DEG C after compost.
Further, it to divulge information in the preprocessing process, ventilation is carried out by time relay control air blower, work week
Phase is to open 15min, closes 15min, and ventilation quantity is 0.1~0.2m3/h。
Further, the material proportion of the compost is tylosin dreg after pretreatment: sawdust: mushroom bran: rubbish from cooking
=5:3:2:1.
Further, the During High-Temperature Composting microbial inoculum additive amount is 0.3%~2%, and microbial inoculum dosing method is first and part heap
Fertile material mixes activation, then mixes with all materials.
Further, it needs that moisture is replenished in time according to material water ratio in the composting process, guarantees that hot stage is aqueous
Rate is maintained at 40%~70%, and total rate of water make-up control is in 1~50L/m3Windrow d.
Further, turning is needed daily in the composting process, using mechanical stirring turning or manual turning.
Further, the final gained more initial windrow loss of weight 30~50% of fertilizer of step (3).
Further, pretreatment mode can also first be leached using clear water using tylosin dreg, reused alkali and adjusted pH
To 10~12,5%~30%H is added2O2, handled 1~4 hour at 60~100 DEG C.
Further, after tylosin dreg is preprocessed and compost recycling treatment, wherein tylosin concentration by 8~
15g/kg (dry weight) is reduced to detection limit or less (< 1mg/kg).
Further, tylosin dreg is preprocessed, after compost recycling and high-temperature process, and gained fertilizer meets organic
The requirements of fertile standard (NY525-2011).
The method of the present invention is easy to operate, easy, and tylosin removal effect is good in tylosin dreg, while satisfaction has
The high-quality organic fertilizer of no environmental risk can be made in machine fertilizer standard, and can realize that tylosin zero remains.
Specific embodiment
Experimental comparison has investigated using this method and unused this method in tylosin dreg aerobic composting process
Tylosin residual and removal rate, and the indices of production fertilizer.
Embodiment 1 (present invention)
Tylosin dreg handles 1h at 130 DEG C, and 15%H is added by solid-to-liquid ratio 2:1 later2O2Continue at 130 DEG C
2.5h is managed, tylosin dreg uses sawdust, mushroom bran, rubbish from cooking as auxiliary material after pretreatment, tylosin dreg: sawdust:
Mushroom bran: rubbish from cooking=5:3:2:1, using clear water adjust initial aqueous rate be 60%, and be inoculated with 0.5% hot fermentation microbial inoculum into
Row compost, time are 15 days, carry out artificial turning daily, are aerated using time relay control air blower, the duty cycle
To open 15min, 15min, ventilation quantity 0.15m are closed3/ h, heap body hot stage heap body core temperature are greater than 55 DEG C and keep
8 days, material handled 2h at 130 DEG C after compost.(< 1mg/ is not detected in tylosin residual in the obtained composting production of the present embodiment
Kg), tylosin removal rate is 100%, and gained fertilizer percentage of seedgermination is 98.5%.
Embodiment 2 (comparative example)
Using tylosin dreg same as Example 1, (1) is not preprocessed unlike embodiment；(2) and bacterium
Chaff carries out mixing compost in the ratio of 1:2；(3) the air blower ventilation operation period is to open 1h, closes 1h, ventilation quantity 0.1m3/
H, heap body core temperature are greater than 55 DEG C and only maintain 4 days；(4) During High-Temperature Composting terminates material and is not heat-treated.The present embodiment institute
Obtaining tylosin residual in composting production is 1.5g/kg, and tylosin removal rate is 54%, percentage of seedgermination 58%.
Experimental result comparative analysis:
Compared with comparative example, the present invention mainly has some different (1) first to be pre-processed, and makes in tylosin dreg
Most of tylosin remains to have obtained effective removal, and the tylosin concentration into composting system has obtained significantly
It reduces, at the same time, tylosin mitigates the inhibiting effect of microorganism, and the stability for the entire composting system for being has obtained pole
The earth improves；(2) auxiliary material that joined this high C/N of sawdust in mixing improves the C/N of entire composting system, high C/N
Carbon is utilized conducive to microorganism, the activity of microorganism is strengthened, so that heap body either maximum temperature or hot stage continue
Time has all obtained great promotion；(3) by reducing ventilation interval time, increasing ventilatory capacity the oxygen supply of composting system is filled
Foot, conducive to well support microorganism activity, conducive to tylosin removal and windrow it is decomposed；(4) During High-Temperature Composting terminate material into
Row heat treatment, can be made high-quality and the organic fertilizer without environmental risk.
These differences directly result in comparative example tylosin residual it is excessively high, fertilizer rotten degree is inadequate, and percentage of seedgermination is too low,
It is unsatisfactory for organic fertilizer standard, and the present invention can effectively remove tylosin, the decomposed degree of fertilizer is good, meets organic fertilizer mark
It is quasi-.(NY525-2011).Embodiment described above 1 is the preferred embodiment of the present invention, it is noted that for the art
Those of ordinary skill for, without departing from the principles of the present invention, several improvements and modifications can also be made, this
A little improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of tylosin dreg compost method of resource, it is characterised in that:
(1) tylosin dreg need to be pre-processed, i.e., at 90~170 DEG C handle 0.5~3h, later by solid-to-liquid ratio 1:1~
5%~30%H is added in 4:12O2Continue to handle 1.5~4h at 90~170 DEG C until moisture content is reduced to 20~40%；
(2) tylosin dreg should use sawdust, mushroom bran, rubbish from cooking as auxiliary material after pre-processing, and be inoculated with hot fermentation bacterium
Agent carries out compost, and heap body hot stage heap body core temperature is greater than 55 DEG C and holding 8 days or more；
(3) material handles 1~4h at 100~170 DEG C after compost.
2. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: the pretreatment
It to divulge information in the process, ventilation is carried out by time relay control air blower, and the duty cycle is to open 15min, closes 15min, is led to
Air quantity is 0.1~0.2m3/h。
3. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: the material of compost
Proportion is tylosin dreg after pretreatment: sawdust: mushroom bran: rubbish from cooking=5:3:2:1.
4. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: During High-Temperature Composting bacterium
Agent additive amount is 0.3%~2%, and microbial inoculum dosing method is first to mix to activate with part compost material, then mix with all materials.
5. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: in composting process
Moisture need to be replenished in time according to material water ratio, guarantee that hot stage moisture content is maintained at 40%~70%, total rate of water make-up control
In 1~50L/m3Windrow d.
6. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: in composting process
Turning is needed daily, using mechanical stirring turning or manual turning.
7. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: final gained fertilizer
Expect more initial windrow loss of weight 30~50%.
8. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: pretreatment mode
It can also first be leached using clear water using tylosin dreg, reuse alkali and adjust pH to 10~12,5%~30%H is added2O2,
It is handled 1~4 hour at 60~100 DEG C.
9. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: tylosin bacterium
After slag is preprocessed and compost recycling treatment, wherein tylosin concentration by 8~15g/kg (dry weight) be reduced to detection limit with
Under (< 1mg/kg).
10. a kind of tylosin dreg compost method of resource according to claim 1, it is characterised in that: tylosin
Bacteria residue is preprocessed, after compost recycling and high-temperature process, and gained fertilizer meets the items of organic fertilizer standard (NY525-2011)
It is required that.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111410567A (en) * | 2020-03-27 | 2020-07-14 | 山东鲁抗中和环保科技有限公司 | Circulating type antibiotic bacterium residue compost and waste gas treatment method |
| CN114455988A (en) * | 2022-02-11 | 2022-05-10 | 山东鲁抗中和环保科技有限公司 | Tylosin fungus dreg compost fermentation process |
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| CN114455988A (en) * | 2022-02-11 | 2022-05-10 | 山东鲁抗中和环保科技有限公司 | Tylosin fungus dreg compost fermentation process |
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