CN109824394A

CN109824394A - A kind of kitchen garbage fermentation processing method

Info

Publication number: CN109824394A
Application number: CN201910244364.7A
Authority: CN
Inventors: 梁犹钦; 郭子成
Original assignee: Polytron Technologies Xiamen Co Ltd
Current assignee: Polytron Technologies Xiamen Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-05-31

Abstract

The present invention discloses a kind of kitchen garbage fermentation processing method, it first carries out domestication culture to starter culture, to improve the adaptability of strain in catalyst, then it is mixed with stalk powder or thin sawdust, peanut shell powder, wheat bran etc. as adminicle material and kitchen garbage is added within 12-16 hours, whole oxygen supply, fermentation temperature are not less than 55 DEG C during fermentation.The method of the present invention can shorten 2-3 days in the earlier fermentation heating-up time, and the 5th degree/day of fermentation can reach 40-50 DEG C, and fermentation period can shorten 30% or more, be conducive to improve garbage disposal ability.

Description

A kind of kitchen garbage fermentation processing method

Technical field

The present invention relates to field of garbage disposal, and in particular to a kind of aerobic good ferment processing method with kitchen garbage.

Background technique

A large amount of kitchen garbage can be generated during resident living, including food (rice, face, meat, fish etc.) is remaining, melon and fruit peel Dish leaf after core, wash vegetables of triming vegetables for cooking, kitchen garbage contain a large amount of organic substance such as protein, lipid, carbohydrate etc., and high oil with high salt Gao Shui easily rots smelly, and Yi Zisheng bacterium causes mosquito, cockroach, mouse.The kitchen garbage of existing industry carries out aerobic more Compost or anaerobic produce biogas treatment, but have that fermentation period is long, insufficient problem of fermenting.

In view of this, the present inventor kitchen garbage processing there are aiming at the problem that study and develop the present invention.

Summary of the invention

In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of kitchen garbage fermentation processing method, the techniques Fermentation calefaction time and fermentation period can be shortened, improve the survival rate of strain in fermentation process.

To achieve the goals above, the technical solution adopted by the present invention are as follows:

A kind of kitchen garbage fermentation processing method, comprising the following steps:

One, the strain domestication culture in fermentation catalyst:

Since kitchen garbage water content is higher, about 90% or so, and the content of organic matter is higher, in addition also containing more highly concentrated The salinity of degree and higher dry substance mixture will cause a large amount of bacterium in fermentation catalyst if being directly added into fermentation catalyst Kind is dead, expected effect is not achieved, therefore the present invention first carries out domestication culture to starter culture, to improve bacterium in catalyst The adaptability of kind, strain domestication incubation step are as follows:

The catalyst formulation that strain domestication culture uses is kitchen garbage additive amount per ton: active carbon 1Kg, weathered coal 0.8Kg, potassium dihydrogen phosphate 0.5Kg, urea 1.5Kg, Em bacterium 5Kg, brown sugar 2.0Kg；

1, suitably drainage is carried out to the kitchen garbage that collection comes and filters out grease, and by water content control on 80% left side The right side obtains the main material A of kitchen garbage；

2, prepare supplies B: using stalk powder or thin sawdust, peanut shell powder, wheat bran etc. as supplies B；

3, prepare domestication culture need catalyst: by catalyst formulation Em bacterium and brown sugar uniformly mix, then plus Enter active carbon and weathered coal, adds potassium dihydrogen phosphate, urea is mixed thoroughly；

4, the catalyst mixed in above-mentioned third step is added the three of the main material A of kitchen and the mixture of supplies B It is stirred evenly in/mono- mass, carries out domestication culture, cultivation temperature is 35-40 DEG C；Continuously add within second day the main material A of kitchen With the one third of supplies B mixture；It is further continued for that the main material A of kitchen is added every other day and supplies B mixture is remaining One third；Domestication culture is completed after culture 3-5 days, is classified for subsequent kitchen garbage；It is urged in above-mentioned domestication incubation The additional amount of agent is the 7-10% of the main material A of kitchen and the amount of the mixture of supplies B；

If kitchen garbage processing continuous production, in subsequent kitchen garbage treatment process, without domestication culture bacterium again Kind, the strain after domestication culture retains in the fermenter, kitchen material to be treated only need to be added, through required by everfermentation The rubbish after handling well is extracted from tank tail after time；If fermentor needs to overhaul or stop work a period of time, need to tame and docile again Change cultivation and fermentation catalyst；

Two, prepare the main material A of kitchen garbage and supplies B to be processed: the standard of kitchen main material A and supplies B For with catalyst strain domestication incubation step 1 and 2；

Three, fermentation catalyst C formula and mixing step with strain domestication culture catalyst formula and step, by adminicle Material B is mixed with catalyst C；

Four, the ready kitchen garbage principal goods of step 2 is added after supplies B is mixed with catalyst C within 12-16 hours Expect A, after mixing well, whole oxygen supply during ferment tank (there are the materials after domestication culture in fermentor) fermentation be added, Guarantee oxygen content sufficient in fermentation materials, fermentation temperature is not less than 55 DEG C.

The Em bacterium can be lactic acid bacteria, bacillus, saccharomycete, actinomyces, one kind of acetic acid bacteria or two kinds or more Mixture.

Further, the fermentation period of step 4 is 25-30 days.

Beneficial effects of the present invention:

Using fermentation processing method of the present invention, the earlier fermentation heating-up time can shorten 2-3 days, the 5th degree/day of fermenting Reach 40-50 DEG C, fermentation period can shorten 30% or more；In addition, the fermentation catalyst that the present invention uses provides a large amount of sugar And microelement, microorganism nutriment is sufficient, greatly improves the survival rate of primary vaccination, the primary vaccination death rate can reduce 20-40%.

Detailed description of the invention

Fig. 1 is the material heap thermogram of conventional normal fermentation.

Fig. 2 is the material heap thermogram of fermentation processing method of the present invention.

Specific embodiment

In order to achieve the above object with effect, technical solution of the present invention is further understood, following spy enumerates preferable implementation Example, and be described in detail below:

One, the strain domestication culture in fermentation catalyst:

Since kitchen garbage water content is higher, about 90% or so, and the content of organic matter is higher, in addition also containing more highly concentrated The salinity of degree and higher dry substance mixture will cause a large amount of bacterium in fermentation catalyst if being directly added into fermentation catalyst Kind is dead, expected effect is not achieved, therefore the present invention first carries out domestication culture to starter culture, to improve bacterium in catalyst The adaptability of kind.Strain domestication incubation step are as follows:

The catalyst formulation table such as table one (kitchen garbage additive amount per ton) that domestication culture uses:

Table one

Classification

Active carbon

Weathered coal

Potassium dihydrogen phosphate

Urea

Em bacterium

Brown sugar

Model

200-300

200 mesh

50-100 mesh

Containing N > 46%

Liquid opportunistic pathogen

Powder

Additive amount

1Kg

0.8Kg

0.5Kg

1.5Kg

5Kg

2.0Kg

1, suitably drainage is carried out to the kitchen garbage that catering trade collection comes and filters out grease, and water content control is existed 80% or so, obtain the main material A of kitchen garbage；

3, prepare domestication culture need catalyst: by table one Em bacterium and brown sugar uniformly mix, then be added activity Charcoal and weathered coal add potassium dihydrogen phosphate, urea is mixed thoroughly；

4, the one third matter of the main material A of kitchen and the mixture of supplies B is added in the catalyst for mixing step 3 It is stirred evenly in amount, carries out domestication culture, cultivation temperature is 35-40 DEG C；Continuously add within second day the main material A of kitchen and adminicle Expect the one third of B mixture；It is further continued for that the main material A of kitchen and the remaining one third of supplies B mixture is added every other day； Domestication culture is completed after culture 3-5 days, is classified for subsequent kitchen garbage；The addition of catalyst in above-mentioned domestication incubation Amount is the 7-10% of the main material A of kitchen and the amount of the mixture of supplies B；

Em bacterium can be the mixed of lactic acid bacteria, bacillus, saccharomycete, actinomyces, one kind of acetic acid bacteria or two kinds or more Close object.

Three, the step of fermentation catalyst C is formulated with table one, and mixing step is with strain domestication culture catalyst, by adminicle Material B is mixed with catalyst C；

Four, the ready kitchen garbage principal goods of step 2 is added after supplies B is mixed with catalyst C within 12-16 hours Expect A, after mixing well, whole oxygen supply during ferment tank (there are the materials after domestication culture in fermentor) fermentation be added, Guarantee oxygen content sufficient in fermentation materials, fermentation temperature is not less than 55 DEG C, and fermentation period is 25-30 days.

Existing normal fermentation method needs 4-7 days temperature to start slowly to rise, and reaches 40-45 DEG C, fermentation of the invention In technique because using catalyst of the present invention after, the heating-up time can shorten 2-3 days, can reach normal fermentation method at 2-4 days Mutually synthermal, the 5th degree/day of fermentation can reach 40-50 DEG C, and fermentation period can shorten 30% or more.

Fig. 1 is the material heap thermogram of conventional normal fermentation, and Fig. 2 is the material heap temperature of fermentation processing method of the present invention Degree record is schemed, wherein T_maxFor the maximum temperature of same day measurement, T_minFor the minimum temperature of same day measurement, T_AFor average degree/day, Measurement method is that daily daytime is primary every measurement in 2 hours.As can be seen from the figure；Strain is reaching identical active degree (judging from the temperature of fermentation heap body), using fermentation catalyst of the present invention, the heating-up time is shorter, and heats up faster (curve is more precipitous).

In addition, catalyst of the present invention provides a large amount of sugar and microelement, microorganism nutriment is sufficient, greatly improves The survival rate of primary vaccination, the primary vaccination death rate reduce 20-40%.

Claims

1. a kind of kitchen garbage fermentation processing method, which comprises the following steps:

Strain domestication culture in step 1, fermentation catalyst:

The catalyst formulation that strain domestication culture uses is kitchen garbage additive amount per ton: active carbon 1Kg, weathered coal 0.8Kg, phosphorus Acid dihydride potassium 0.5Kg, urea 1.5Kg, Em bacterium 5Kg, brown sugar 2.0Kg；

(1), it carries out suitably drainage and filtering out grease to collecting the kitchen garbage come, and by water content control 80% or so, Obtain the main material A of kitchen garbage；

(2), prepare supplies B: supplies B selected from stalk powder or thin sawdust, peanut shell powder, wheat bran one kind or Combination；

(3), prepare domestication culture need catalyst: by catalyst formulation Em bacterium and brown sugar uniformly mix, be then added Active carbon and weathered coal add potassium dihydrogen phosphate, urea is mixed thoroughly；

(4), the catalyst mixed in above-mentioned third step is added to three points of the main material A of kitchen and the mixture of supplies B One of stir evenly in quality, carry out domestication culture, cultivation temperature is 35-40 DEG C；Continuously add within second day the main material A of kitchen and The one third of supplies B mixture；It is further continued for that the main material A of kitchen and supplies B mixture remaining three is added every other day / mono-；Domestication culture is completed after culture 3-5 days, is classified for subsequent kitchen garbage；It is catalyzed in above-mentioned domestication incubation The additional amount of agent is the 7-10% of the main material A of kitchen and the amount of the mixture of supplies B；

Step 2 prepares the main material A of kitchen garbage and supplies B to be processed: the preparation of kitchen main material A and supplies B With catalyst strain domestication incubation step 1 and 2；

Step 3, fermentation catalyst C formula and mixing step with strain domestication culture catalyst formula and step, by adminicle Material B is mixed with catalyst C；

The ready kitchen garbage principal goods of step 2 is added after mixing with catalyst C in step 4, supplies B within 12-16 hours Expect A, after mixing well, ferment tank is added, whole oxygen supply during fermentation guarantees oxygen content sufficient in fermentation materials, hair Ferment temperature is not less than 55 DEG C.

2. a kind of kitchen garbage fermentation processing method as described in claim 1, which is characterized in that the Em bacterium can be lactic acid The mixture of bacterium, bacillus, saccharomycete, actinomyces, one kind of acetic acid bacteria or two kinds or more.

3. a kind of kitchen garbage fermentation processing method as described in claim 1, which is characterized in that step 4 fermentation period is 25- 30 days.