KR102001542B1 - Soil conditioner using waste water sludge and production method of the same - Google Patents

Abstract

The present invention relates to a soil conditioner using sewage sludge, which is a production system comprising: an aging section to undergo a continuous fermentation aging step in which mesophilic and high temperature fermentation microorganisms are injected at different temperatures; and a stirred section for after-ripening, and to a production method thereof. The soil conditioner using sewage sludge can be expected to improve gas disturbance and promote plant growth when used for soil conditioner or landfill covering of gardens, parks, forests, reclaimed land, cultivated lands, road cutting areas, abandoned mines, soil vegetation restoration project lands, and the like by full fermentation.

Description

Technical Field [0001] The present invention relates to a soil improvement agent using sewage sludge and a method for producing the soil improvement agent,

More particularly, the present invention relates to a soil improvement agent and a method for producing the same, and more particularly, to a soil improvement agent and a method for producing the same, A soil improvement agent using sewage sludge which is recycled as a source of trace elements, and a method for producing the same.

Sewage sludge is purified by biological activated sludge process in most sewage treatment plants and is exported as solid of final dewatering cake. Sewage sludge discharged in this way is classified as organic sludge according to the Waste Management Act because the average water content is 80%, inorganic matter is 9%, and organic matter is 11%.

Sewage sludge is increasing every year to 3,654,237 tons in 2014. Most of the sewage sludge was treated by ocean dumping until 2011, but the 1972 London Convention (Convention on the Prevention of Marine Pollution by Dumping of Waste and Other Substances, Maritime dumping is totally prohibited from 2012 on the basis of the 'London Convention 96' to provide the effectiveness of the enforcement of the Kyoto Protocol,

The primary treatment method of sewage sludge due to prohibition of marine dumping is simple incineration, melting and landfilling. However, since sewage sludge has a high water content, it has a high incineration or melting cost and is highly perishable. Depletion and soil reductivity. Therefore, it is necessary to reduce the water content or to remove the pathogenic bacteria.

In particular, the sewage sludge corresponding to the organic sludge is produced as a composted soil according to the Ministry of Environment notification (regulations on the method of recycling organic sludge and the like for the land improvement agent and the landfill site) so that it can be recycled as the land improvement agent or the landfill site Therefore, the sewage sludge is being actively developed and recycled.

In Korean Patent No. 10-1279135 (Sewage sludge fermentation method), sludge, pearlite, and loess ceramic balls are mixed in a fermentation tank, fermentation is performed for 60 to 100 hours while stirring under aerobic conditions, Discloses a technique for collecting ceramic balls and carrying out the fermentation sludge from which the loess ceramic balls have been removed. In Korean Patent No. 10-1005194 (method for producing composted soil of sewage and livestock waste), the sewage and livestock waste are dried using an electric drier and then put into a fermenter, and sludge microorganisms, rice straw and oyster shells are introduced A method of fermenting a fermented product by stirring the fermented product while supplying warm air and lowering the water content in a post-fermentation fermenter.

However, in the method of Korean Patent No. 10-1279135, the water is absorbed by the loess ceramic ball having a size of 2 to 6 mm and separated by the screen, so that the separation process is difficult. Usually, It is difficult to completely ferment the sewage sludge within 60 to 100 hours. Therefore, there is a gas barrier problem in which harmful gas (ammonia gas, nitrite gas, etc.) is generated when less fermented organic matter is decomposed when plants are used as a soil improving agent. In addition, in the case of Korean Patent No. 10-1005194, the water is dried with an electric drier, so that not only an enormous electric charge but also a disposal cost of sewage sludge flowing in a 24-ton truck unit is high and incomplete fermentation There is also a problem.

On the other hand, as the consumption of food such as beverages containing a large amount of caffeine such as coffee has increased in recent years, about 70% of the caffeine (7.078 ng / ml) introduced into the sewage treatment plant through the sewer pipe is accumulated in the sewage sludge (Eum Jung Hoon et al., Journal of the Korean Society for Environmental Analysis, Vol. 15 (No.2) pp. 98 ~ 106, 2012).

In order to solve the problem that the caffeine contained 80.28 mg / 100g of coffee in the coffee bean, the plant growth is inhibited. In order to solve the problem, Korean Patent Laid-Open Publication No. 10-2017-0076363 discloses a soil improving agent containing coffee bran fermented with caffeine- Discloses a process for producing the same.

Thus, caffeine-containing sewage sludge and coffee grounds can be used as a soil remediation resource without discarding. However, there have been few studies on the decomposition of caffeine into microorganisms contained in sewage sludge or coffee grounds.

In order to solve the above problems, the inventor of the present invention has utilized the production system disclosed in the Korean Patent Application No. 10-2017-0101867 (microorganism-containing organic fertilizer and its manufacturing method) of the present inventor in part to make recycled sewage sludge The present inventors have completed the present invention by developing a fully fermented soil remediation agent.

Disclosure of the Invention The present invention has been proposed in order to solve the above problems in a comprehensive manner, and it is an object of the present invention to provide a production system comprising agitated copper and aged copper aged copper to conduct a continuous fermentation aging step in which a mesophilic microorganism having caffeine- To improve the gas barrier and promote plant growth when used as a land improvement agent or a landfill cover material such as a garden, a park, a reclaimed land, a reclaimed land, a clearing land, a road cutout site, The present invention provides a soil improvement agent using sewage sludge which can be expected to have an effect and a method for producing the same.

In order to achieve the above object, the soil improvement agent using sewage sludge according to the present invention is a soil improvement agent using sewage sludge produced by a production system divided into aged copper, agitated copper and copper copper, An odor reducing device and at least one fermenting tank in an independent closed space surrounded by a floor, a side wall, and a roof, respectively, and the air introducing device comprises a plurality of long grooves opened at the bottom of the fermenter, A plurality of air supply pipes disposed respectively in the plurality of long grooves, an air distribution pipe connected to the plurality of air supply pipes, and an air injector connected to one end of the air distribution pipe, A temperature control device for controlling the temperature of the compressed air is further provided, Wherein a microbial culture fluid injection tube having a plurality of nozzles toward the fermentation tank is provided inside each roof of the stirring motive, and the composition of the soil amendment agent using the sewage sludge comprises sewage sludge, coffee grounds, shale, sawdust, zeolite, .

Wherein the fermentation tank is divided into at least two fermentation tanks and the temperature regulating device is configured to control the temperature of the compressed air differently depending on the fermentation tanks. The microbial culture solution injection pipe is configured to inject the microbial culture solution into the fermentation tank Another feature of the soil remediation agent using sewage sludge according to the present invention is as follows.

The microbial culture solution supplied to the microbial culture solution injection pipe and constituting the composition of the soil amendment agent using the sewage sludge may be selected from the group consisting of Pseudomonas putida (Trevisan) Migula, Pseudomonas protegens and Aspergillus calestemii Aspergillus callestemii, Rhodotorula aurantiaca, Bacillus megaterium, Streptomyces costaricanus, Thermoascus thermophilus, and Bacillus subtilis Bacillus subtilis) is diluted 400-600 times with water containing 1x10 < ^-6 > ^{to 7} cfu / g of water, respectively, to make up another feature of the soil remediation agent using the sewage sludge according to the present invention.

Wherein the one fermentation tank and the nine fermentation tanks are symmetrically divided into two rows with the same size and facing each other so as to be perpendicular to the longitudinal direction, wherein the one or more fermentation tanks are longitudinally divided, The rail is provided on the upper part of the side wall, the front and rear conveying devices are fastened to the rails, and the stirring device having the stirring and moving means of the stirring arm is fastened to the predetermined frame in the front and rear conveying devices. Another feature of the soil improvement agent using sludge is as follows.

The composition of the soil improvement agent using the above sewage sludge consisted of 35% by weight of the above sewage sludge, 7% by weight of oyster and 5% by weight of egg white, 3% by weight of coffee bean, 45% by weight of sawdust, 3% by weight of zeolite and 2% %, Which is another feature of the soil remediation agent using the sewage sludge according to the present invention.

Meanwhile, a method for producing a soil amendment agent using sewage sludge according to the present invention is a method for producing a soil amendment agent using sewage sludge as the above-mentioned production system, Growing in the stirring copper; And a step of storing and packing in the packed copper, wherein the step of fermenting and aging in the aged copper comprises a composition preparation step, a middle temperature fermentation step and a high temperature fermentation step.

Wherein the fermentation tanks are divided into two tiers symmetrically with respect to one another in such a manner that one preparation vessel and nine fermentation tanks 2 to 10 face each other in a direction perpendicular to the longitudinal direction and that the one or more fermentation vessels are longitudinally divided, In the mesophilic fermentation step, the composition prepared in the preparation step of the composition is transferred from the preparation tank to the fermentation tank 2 and mixed, and the Pseudomonas putida (Trevisan) Migula, Pseudomonas protegens, A first mesophilic fermentation step in which a first mesophilic microorganism culture solution mixed with Aspergillus callestemii and Rhodotorula aurantiaca is injected and caffeine decomposition fermentation is performed by supplying compressed air at 30 ° C; A second intermediate temperature fermentation step of transferring the composition fermented in the first intermediate temperature fermentation step to the fermentation tank No. 3, mixing the first medium temperature microorganism culture liquid, and supplying compressed air at 30 캜 to caffeine decomposition fermentation; And the composition fermented by the second mild fermentation step is transferred to a fermentation tank No. 4 and mixed, and a second mesophilic microorganism culture solution mixed with Aspergillus callestemii and Rhodotorula aurantiaca And a third medium-temperature fermentation step of feeding the compressed air at 30 ° C. by supplying a predetermined amount of the compressed air.

The high temperature fermentation step comprises: transferring the fermented composition to the fifth fermentation tank, mixing the fermented mixture with the third medium temperature fermentation step, mixing the mixture with Bacillus megaterium, Streptomyces costaricanus and Thermo Ascus thermophilus A first high temperature fermentation step in which a first thermophilic microorganism culture solution mixed with Thermoascus thermophilus is injected and fermented by supplying compressed air at 45 ° C; A second high temperature fermentation step of transferring and mixing the composition fermented in the first high temperature fermentation step to a fermentation tank No. 6, injecting a predetermined amount of the first thermophilic microorganism culture liquid, and supplying the compressed air at 50 ° C to ferment; A third high temperature fermentation step of transferring the composition fermented in the second high temperature fermentation step to a fermentation tank No. 7, mixing the same, injecting a predetermined amount of the first thermophilic microorganism culture liquid, and supplying compressed air at 50 ° C to ferment; The composition fermented by the third high-temperature fermentation step is transferred to the fermenter No. 8 and mixed, and a second thermophilic microorganism culture solution in which Streptomyces costaricanus and Thermoascus thermophilus are mixed is mixed with a predetermined amount A fourth high-temperature fermentation step of feeding fermentation by supplying compressed air at 50 ° C; The composition fermented by the fourth high temperature fermentation step is transferred to a fermenter No. 9 and mixed. A predetermined amount of a third thermophilic microorganism culture solution containing Thermoascus thermophilus is injected, and 55 ° C compressed air is supplied A fifth high temperature fermentation step in which the fermentation is performed; And a sixth high temperature fermentation step of transferring the composition fermented in the fifth high temperature fermentation step to the fermentation tank 10 and mixing the same, feeding a predetermined amount of the third thermophilic microorganism culture liquid, and feeding the compressed air at 60 ° C. to the fermentation step Another aspect of the present invention is a method for producing a soil conditioner using sewage sludge according to the present invention.

Wherein the step of growing in the agitating copper comprises a first post-growing step, a temperature lowering step and a second post-growing step, wherein the first post-growing step comprises transferring the composition fermented in the sixth high temperature fermentation step to the fermenter , A predetermined amount of the first thermophilic microorganism culture liquid is injected, compressed air at 50 ° C is supplied, and the mixture is cultured for a certain period of time, which is another feature of the method for producing a soil amendment agent using sewage sludge according to the present invention.

Wherein the first post-fermentation step comprises transferring the sixth hyperthermally fermented composition to the fermentor of the stirred fermenter and mixing the fermented broth with Bacillus megaterium, Streptomyces costaricanus, and Thermo The first thermophilic microorganism culture solution mixed with Asukus thermophilus is injected at a predetermined rate, compressed air is supplied at a temperature of 50 ° C, and the mixture is mixed at a constant rate using a transfer device Another aspect of the method for producing a soil conditioner using sewage sludge according to the present invention is as follows.

Wherein the temperature lowering step is to lower the temperature by supplying compressed air at 30 DEG C to the composition after the first maturing step and the second maturing step is a step in which the composition of the first mesophilic microorganism is added to the composition after the temperature lowering step And adjusting the water content by mixing and supplying compressed air at 25 ° C to the soil conditioner according to the present invention.

The present invention relates to a method for producing a fermented food, comprising the steps of fermenting a fermentation broth with a fermentation broth and a mature fermented broth to carry out a continuous fermentation fermentation step in which a mesophilic microorganism having a caffeine- And sewage sludge that can be expected to improve the gas barrier and promote plant growth when used as a land improvement agent or landfill cover material such as garden, park, forest, reclaimed land, clearing ground, road cutout site, And a method for producing the same.

FIG. 1 conceptually illustrates a plan layout for one embodiment of a ripening motion in a production system according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA 'in FIG. 1, showing the structure according to one embodiment of the ripening motion.
FIG. 3 conceptually illustrates a plan layout for one embodiment of stirring in a production system according to the present invention.
FIG. 4 is a sectional view taken along the line BB 'of FIG. 3, showing a structure according to an embodiment of stirring.
FIG. 5 conceptually illustrates a side view of a packaging agreement embodiment in a production system according to the present invention.
FIG. 6 is a flow chart showing a step of fermentation aging in aged copper in an embodiment of the method for producing a soil improving agent using sewage sludge according to the present invention.
FIG. 7 is a flowchart showing a step of growing up in a stirring operation in an embodiment of a method for producing a soil conditioner using sewage sludge according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The soil improvement agent using the sewage sludge according to the present invention is produced in a production system divided into aged copper 100, agitated copper 120 and copper copper 140, 200 as illustrated in FIGS. 1 to 5 .

The aged copper 100 and the agitating copper 120 are connected to an independent closed space surrounded by the floor 1, the side wall 2 and the roof 3, respectively, as shown in Figs. 2 and 4, ), A malodor reduction apparatus (110) and at least one fermenter (4, 5; 6).

As shown in FIG. 1, the fermentation tank of the aged copper 100 can be divided into two (4, 5) or more, as shown in FIG. 2, The fermentation tanks (2) to (10) may be symmetrically divided into two rows of the same size, facing each other perpendicularly to the longitudinal direction.

1 to 4, the air injection device 20 includes a plurality of long grooves 10 opened at an upper portion of a bottom 1 of the fermenter 4, 5, 6, A plurality of air supply pipes (24) inserted into the grooves, an air distribution pipe (22) connected to one end of the air supply pipe, and an air injector (21) for supplying compressed air to the air distribution pipe .

At this time, a plurality of pores 26 are formed in the air supply pipe 24 inserted in the plurality of long grooves 10 to store the leachate generated in the composition in the long grooves 10, So that the compressed air supplied from the compressed air supply pipe 20 can smoothly discharge the leached water impregnated into the long groove 10 and the air supply pipe 24 to the long groove 10 through the plurality of pores 26, (S) introduced into the composition (S) is also discharged from the long groove (10) together with the leachate to be sprayed to the bottom of the composition (S).

As shown in FIG. 2, the air distribution pipe 22 is preferably connected at a predetermined height higher than the plurality of air supply pipes 24. By doing so, the leachate leaking into the air supply pipe 24 flows into the air distribution pipe 22).

2 and 4, a temperature controller 23 may be further provided between the air distribution pipe 22 and the air supply pipe 24 to adjust the temperature of the compressed air.

At this time, the temperature regulating device 23 may be provided so that the compressed air passes through the hot wire or the like and is heated. It is preferable that the temperature of the compressed air to be distributed to the fermenter is controlled differently. The temperature control error range of the temperature regulating device 23 is preferably ± 1 ° C. If the error range is larger than this range, the facility cost may be lowered, but there is a problem that it is difficult to achieve the desired complete fermentation by providing a constant fermentation environment. However, if the error range is smaller than this range, the facility cost increases and the effect becomes ineffective .

By doing so, the temperature of the compressed air can be adjusted for each fermentation tank, thereby providing a condition for complete fermentation.

2, 4 and 5, the fermentation tank 100, the stirring copper 120, and the roof 3 of the packaging dynamic loading chamber 140, which enclose the fermentation tanks 4, 5 and 6 in a closed space, The malodor reduction apparatus 110 may be connected to the malodor reduction apparatus 110. In this case, the malodor reduction apparatus 110 evaporates the leachate from the fermentation tank and sends it out together with the malodorous gas, thereby polluting the environment caused by the discharge of the leachate It is possible to solve the problem fundamentally.

The malodor reduction apparatus 110 includes a chlorine dioxide generator 50 for supplying chlorine dioxide (ClO ₂ ), a gas discharge pipe 40, an exhaust device 60, And one or more line mixers (70) provided between the exhaust pipe (54) and the exhaust device (60), so that the odor can be effectively neutralized and discharged.

As shown in FIGS. 2 and 4, the microbial culture liquid injection pipe 30 is further provided in the longitudinal direction of each aged copper and the stirring copper inside the respective roofs 3 of the aged copper 100 and the agitated copper 120 A plurality of nozzles 32 may be provided in the fermentation tank 4, 5, 6 in the microbial culture fluid injection tube 30. [

At this time, it is preferable that the microorganism culture solution injecting tube 30 is configured such that the microbial culture solution is separately injected for each fermentation tank because the microorganisms having high activity at the temperature controlled by the temperature adjusting device 23 are provided for each fermentation tank It is possible to expect complete fermentation by the microorganism.

The composition of the soil amendment agent using sewage sludge comprises sewage sludge, coffee grounds, barley, sawdust, zeolite and a microorganism culture solution.

The microbial culture solution is supplied to the microbial culture solution injection tube 30, and it is preferable that the mesophilic microbial culture solution having high activity at 25 to 35 ° C and the heat-resistant microbial culture solution at 40 to 65 ° C are contained.

The microorganisms used as the mesophilic microorganism culture liquid include Pseudomonas putida (Trevisan) Migula, Pseudomonas protegens, Aspergillus callestemii and Rhodotorula (Rhodotorula < RTI ID = 0.0 > aurantiaca, and the microorganism used as the thermophilic microorganism culture may be one or more of Bacillus megaterium, Streptomyces costaricanus, and Thermoascus thermophilus. .

The Pseudomonas putida (Trevisan) Migula (ATCC 700097), isolated from sewage sludge, is a by-product nutrient microorganism and is mesophilic and has excellent caffeine resolving ability. Therefore, a large amount of caffeine contained in the sewage sludge and coffee ground It can be completely decomposed, and it is expected that the effect of inhibiting plant growth due to the residual caffeine can be avoided.

Pseudomonas protegens (ATCC BAA-477) is a rhizosphere microorganism isolated from cultivated soil, antagonistic to phytopathogenic fungi, insoluble phosphate soluble, siderophore, The plant hormone, indole acetic acid, is secreted and promotes plant growth. Chitinase and polymer degrading enzymes are also secreted to decompose organic matter. In addition, since the growth rate is fast due to the presence of bacteria, it is possible to provide an effect of relatively quickly killing bacteria and spoilage bacteria that may be contained in the composition (S).

The Aspergillus callestemii (ATCC MYA-4943) is a soil-borne fungus that is mesophilic and has an antagonistic effect against phytopathogenic bacteria. Therefore, it is possible to provide an effect of effectively killing harmful and pernicious bacteria that may be contained in the composition. In addition, it takes a little time to grow by producing mycelium because it is a fungus and it grows. However, since the mycelium spreads inside the organic material of the composition (S), it is used as an access passage of the thermophilic microorganism in the subsequent high temperature fermentation process, It is expected to provide a physical basis that can be well established.

The above Rhodotorula aurantiaca (ATCC 90775) is a mesophilic fungus with a mildew, and it has the advantage of fermenting lignin biomass to produce organic acids and having antibacterial activity against phytopathogenic bacteria have. Therefore, it is expected that not only the harmfulness which may be contained in the composition and the death of the pernicious bacteria but also the rapid proliferation by yeast-like propagation method, the rapid decomposition of organic matter at middle temperature is expected.

The above-mentioned Bacillus megaterium (ATCC 15374) is a soil microorganism having high temperature, heat resistance, antifungal activity against phytopathogenic fungi, and endospore production, which is useful for high temperature fermentation. Also, since the growth rate is fast, it is possible to effectively decompose the organic matter and the refractory organic matter remaining in the composition in the early high temperature fermentation step, and is expected to be useful also in the death of the thermophilic pathogenic fungi.

The Streptomyces costaricanus (ATCC 55274) is a soil rhizospheric actinomycetes, which has high temperature, heat resistance, antifungal activity against phytopathogenic fungi, and has the advantage of activity of xylenolytic enzyme which is a degradable carbohydrate. Therefore, it is anticipated that actinomycetes grow relatively fast, killing of pathogenic fungi, and rapid decomposition of degradable organics.

The Thermoascus thermophilus (ACTT 26413) is a soil fungus fungus, which is resistant to heat and has the advantage of releasing an enzyme capable of degrading carbohydrate. It is expected to be able to maintain the decomposition of degradable organic matter even if the temperature is elevated by the high temperature fermentation because it is fungus and it grows mycelium and it grows somewhat late but can control the relatively wide region.

The mesophilic microorganism culture solution is prepared by mixing a mixed microorganism powder containing ¹ x 10 < ⁶ > ^{to 7} cfu / g of each of Pseudomonas putida, Pseudomonas proteans, Aspergillus calescimentii and Rhodotorula aurantiaca, To 600-fold dilution, and a mixed microorganism powder containing 1x10 < ⁶ > ^{to 7} cfu / g of Aspergillus calescimentii and Rhodotorula aurantiaca as the first mesophilic microorganism culture was diluted 400-600 times with water 2 mesophilic microorganism culture solution, which can be used in the manufacturing process described below.

The thermophilic microorganism culture solution is prepared by diluting a mixed microbial powder containing Bacillus megaterium, Streptomyces Costa Ricanus and Thermo Ascus thermophilus at a concentration of 1 x ¹⁰ < ^-6 > ^{to 7} cfu / g, A mixed microorganism powder containing 1x10 < ⁶ > ^{to 7} cfu / g of Streptomyces Costa Ricanus and Thermo Ascus Thermophilus as a microbial culture solution was diluted 400-600 times with water to prepare a second thermophilic microorganism culture solution, The microbial powder containing 1 x ¹⁰ < ⁶ > ^{to 7} cfu / g of the thermophilus may be diluted 400 to 600 times with water to be used as the third microbial culture solution in the manufacturing process described below.

Of course, a mixed microbial powder containing 1 x ¹⁰ < ⁶ > ^{to 7} cfu / g of Bacillus subtilis may be diluted 400 to 600 times with water. Bacillus subtilis is known as Bacillus subtilis, which anaerobically metabolizes various saccharides such as glucose, starch and the like, but also decomposes pectin and polysaccharides of organic substances such as plant tissues, and especially degradable carbohydrates such as cellulose, hemicellulose and lignin It has excellent resolution.

Each of the mixed microbial powders may contain an appropriate amount of lactic acid bacteria, yeast, photosynthetic bacteria, actinomycetes and filamentous bacteria useful for vegetation.

In addition, when each of the strains contained in each of the mixed microbial powders contains less than 1 × 10 ⁶ to 10 ⁷ cfu / g, an appropriate dilution amount of water becomes small, This is not easy. It is most preferable that each of the mixed microbial powders is diluted 500 times in water.

The sewage sludge is purified by a bio-activated sludge process at a sewage terminal treatment plant and is discharged as a solid of the final dewatered cake, and the water content is 80% on average. The organic matter contained in the sewage sludge can be supplied as a source of nutrients such as carbon, nitrogen, phosphorus and the like required for plant growth through fermentation, and the inorganic matter contained in the sewage sludge can be used as a source of trace elements required for plant growth .

The above-mentioned shaft fraction may be used as a raw meal or a flour and may be used as a recovered shaft fraction itself having a water content of 80% or more and 70% or more, respectively, but it is preferable to use a product having a water content of 60% or less. These nutrients contain various organic substances and nutrients such as insoluble proteins, carbohydrates, etc., and are supplied as a major source of organic matter required for plant growth after fermentation.

The sawdust is a byproduct which provides a void as a bulging agent and absorbs extra moisture to facilitate aerobic fermentation. The coffee bean is a by-product having a moisture content of 70% or less, , The zeolite has a property of strongly adsorbing unsaturated hydrocarbons or polar substances selectively.

In a concrete example, the composition of the soil improvement agent using sewage sludge comprises 35 wt% of sewage sludge, 3 wt% of coffee beans, 7 wt% of fowl, 5 wt% of pig powder, 45 wt% of sawdust, 3 wt% of zeolite, %. ≪ / RTI >

Specific structural examples of the aged copper (100), the agitating copper (120) and the copper copper (140, 200) will be described.

First, as shown in Fig. 1, the fermentation copper (100) has one preparation vessel (1) and nine fermentation tanks (4, 5; 2 to 10) facing each other perpendicularly to the longitudinal direction, . ≪ / RTI >

9 fermentation tanks (4, 5; ② to 10) of the aged copper 100 are deposited and fermented in each fermentation tank for a predetermined period of time, transferred to a neighboring fermentation tank, mixed and fermented into the microorganism culture liquid , The fermentation is carried out in the order of (2) to (10) as shown in FIG. 1), and the fermentation is preferably performed for a certain period of time in the fermentation copper (100).

Unlike the fermentation tanks 4 and 5 (② to ⑩), the preparation tank (1) is a place where a variety of materials used as a raw material of the composition (S) (10) may not be formed.

3 and 4, one or more fermentation tanks (6) are longitudinally divided, and a rail (96) is provided on both side walls (6) of the fermentation tanks The front and rear conveying devices 90 are fastened to the rails 96 and the vertical movement of the rotary shaft 82 to which the stirring arm 84 is attached to the predetermined frame 83, 81, and 85 may be fastened to each other.

4, the stirring arm 84 is horizontally moved along the rails 96 by the back and forth conveying device 90, and is rotated by the up and down moving and rotating means 81, (S) and is rotated by a predetermined driving shaft (82) to stir the uniform composition (S).

5, the packed copper is divided into a loading chamber 140 and a packing chamber 200, and a part of the bottom 1 of the middle separation sidewalls of the loading chamber 140 and the packing chamber 200, A collecting space 144 is formed in a hopper shape below and a collecting space 144 is provided with a first conveyor 212 for receiving a raw material and transferring the raw material to the packing chamber 200, And a hopper type crusher 210 is provided at an end of the crusher 210. The crusher is connected to the separator 220 through a second conveyor 222 and a third conveyor 228 is disposed in front of the separator, The fourth conveyor 231 is connected to both the mass distributor 230 and the small-volume distributor 240 through the fifth and sixth conveyors 242 and 232, .

1 to 5, the method for producing a soil amendment agent using sewage sludge according to the present invention comprises the steps of: (1) System can be used, the fermentation is aged in the fermentation copper 100 as a whole; Growing in the stirring copper 120; And storing and packing the same in the packaging machine (140, 200).

The step of fermenting the fermented copper 100 in the fermentation broth 100 includes the preparation of the composition (S100), the fermentation at the middle temperature (S200) and the fermentation at the high temperature (S300), as shown in FIG. 6 , It is possible to perform efficient and complete fermentation by dropping the appropriate microorganism culture solution under the temperature condition of the step.

That is, at the mid-temperature fermentation step (S200), harmful and perishable bacteria or fungi that may be contained in the organic matter of the composition (S) are added to the medium To inhibit the formation of toxic components due to decay, and to provide a space necessary for high temperature fermentation.

The high-temperature fermentation step (S300) removes harmful bacteria and fungi of high temperature, which may be contained in the organic matter of the composition (S), by adding a heat-resistant, high temperature microorganism culture solution at 40 to 65 ° C, It kills the pathogens and parasites contained in it and makes them fully fermented.

Specifically, the mid-temperature fermentation step (S200) is preferably divided into the first and second mesophilic microorganism cultures and added in each fermentation tank. By doing so, the first mesophilic microorganism culture solution having the caffeine-decomposing ability provides the proliferation time of the fungus having a relatively slow growth rate, and at the same time, kills harmful microorganisms such as germs by using bacteria and yeasts showing rapid proliferation And the second mesophilic microorganism culture solution is composed of a mixture of yeast and fungi to complete the removal of the bacterial harmful microorganisms and to open a physical pathway inside the organic matter .

The high-temperature fermentation step (S300) is also preferably divided into the first to third thermophilic microorganism cultures and added in each fermentation tank. Thus, by the first thermophilic microorganism culture solution, the initial high temperature fermentation is initiated by using the bacterium which first proliferates actinomycetes and fungi having a relatively slow growth rate and exhibits rapid proliferation, and at the same time, It is possible to kill harmful microorganisms such as sexually transmitted bacteria.

More specifically, in the middle-temperature fermentation step (S200), as shown in FIGS. 1 and 6, the composition (S) prepared in the composition preparation step (S100) such as sewage sludge and starch is prepared in the preparation vessel (1) ), And mixed to obtain a mixture of Pseudomonas putida (Trevisan) Migula, Pseudomonas protegens, Aspergillus callestemii and Rhodotorula aurantiaca mixed A first mesophilic fermentation step (S210) in which the first mesophilic microbial culture is injected and caffeine is decomposed and fermented by supplying compressed air at 30 DEG C through a temperature controller (23); (S) fermented in the first intermediate fermentation step is transferred to a fermenter (3) 3, mixed with a predetermined amount of the first mesophilic microbial culture solution, and supplied with compressed air at 30 ° C to effect caffeine decomposition fermentation A two-temperature fermentation step (S220); And the composition (S) fermented by the second mild fermentation step are transferred to and mixed with the fermenter (4) 4 and mixed with Aspergillus callestemii and Rhodotorula aurantiaca A third mesophilic fermentation step (S230) in which a predetermined amount of the second mesophilic microbial culture solution is poured and 30 ° C of compressed air is supplied for fermentation.

The feeding of the compressed air at 30 ° C in the mid-temperature fermentation step (S200) is performed by adjusting the activation conditions of the mesophilic microorganism by the first and second mesophilic microorganism culture medium, and the high temperature fermentation is too early To prevent the occurrence of harmful microorganisms, and to enable effective microbial death.

1 and 6, the fermented composition (S) fermented in the third intermediate fermentation step is transferred to the fifth fermenter (5) and mixed with the Bacillus megaterium megaterium, Streptomyces costaricanus and Thermoascus thermophilus, and the first high temperature fermentation which is fermented by supplying compressed air at 45 ° C. Step S310; The composition (S) fermented in the first high temperature fermentation step is transferred to a fermentation tank (6) and mixed. A predetermined amount of the first thermophilic microorganism culture liquid is poured, and a second high temperature Fermentation step (S320); The composition (S) fermented in the second high-temperature fermentation step is transferred to and mixed with the fermentation tank (7), and a predetermined amount of the first thermophilic microorganism culture liquid is injected. The third high temperature fermentation Fermentation step (S330); The composition (S) fermented in the third high-temperature fermentation step is transferred to a fermenter (No. 8) (⑧) and mixed, and the mixture of Streptomyces costaricanus and Thermoascus thermophilus A fourth high temperature fermentation step (S340) of injecting a certain amount of the thermophilic microbial culture solution and fermenting by supplying compressed air at 50 DEG C; The composition (S) fermented in the fourth high temperature fermentation step is transferred to a fermenter (9) No. 9, mixed with a predetermined amount of a third thermophilic microorganism culture solution containing Thermoascus thermophilus, (S350), wherein the fermentation is performed by supplying compressed air at a temperature of 50 to < 0 >C; And a fermented composition (S) fermented in the fifth high temperature fermentation step are transferred to and mixed with the fermentation tank (10), and a predetermined amount of the third thermophilic microorganism culture liquid is injected. And a high temperature fermentation step (S360).

At this time, the temperature of the compressed air gradually increases from 45 ° C to 60 ° C in the high-temperature fermentation step (S300) as described above, so that the microorganisms can not adapt to a given environment due to rapid temperature increase due to high temperature fermentation In addition, the thermophilic microorganisms are activated in harmony with each other at the respective temperatures, and the functional and physical transitions are efficiently performed according to the gradual increase in temperature. In other words, bacteria grow rapidly, leading to early high-temperature fermentation, followed by actinomycetes, which are activated at a higher temperature, while fungi slowly grow and become activated at higher temperatures.

As described above, when high-temperature fermentation is carried out at 45 ° C for a certain period of time in the fermentation tank 5, the mesophilic microorganisms used in the mid-temperature fermentation step S200 are gradually physiologically inactivated and become a resting state, The microbes (bacteria, actinomycetes, fungi) contained in the first thermophilic microorganism culture fluid are proliferated and functional and physical transitions with the mesophilic microorganisms are performed, so that the high temperature fermentation can be stably activated. In particular, the high temperature fermentation by Bacillus megaterium, which is a fast growing bacterium, and Streptomyces Costa Ricanus, which is the next fastest actinomycetes, can be effectively initiated and proceeded. At the same time, Thermo Ascus thermophilus, a fungus with relatively slow growth rate, And the proliferation is gradually started.

In addition, since various phytopathogenic microbial control substances are secreted from the thermophilic microorganisms to which they are administered, the microorganisms are accumulated in the composition (S) as well as the effect of killing potentially harmful harmful microorganisms. Therefore, The growth inhibition and killing effect of phytopathogenic microorganisms can be expected.

Thereafter, in the second and third high temperature fermentation steps (S320 and S330) proceeding in the sixth and seventh fermentation tanks (6, 7), the temperature is adjusted to 50 ° C so that full- The culture solution is added so that sufficient thermophilic microorganisms are proliferated and high-temperature fermentation is activated.

Therefore, when the second and third high-temperature fermentation steps (S320, S330) are performed, Bacillus megaterium, which is a fast growing bacterium, is sufficiently proliferated and activated, so that it is economically preferable not to further input at the subsequent high- Do.

Next, in the fourth high temperature fermentation step (S340) proceeding in the fermentation tank 8 (8), the temperature is adjusted to 55 캜 so as to proceed the high temperature fermentation at a higher temperature. For this reason, the thermophilic actinomycetes and fungi 2 < / RTI > thermophilic microorganism.

By doing so, the introduced thermophilic microorganisms can be physiologically adapted so that high-temperature fermentation can be performed at a higher temperature, so that the highest input efficiency can be reconsidered.

Thereafter, in the fermentation tanks 9 and 10, the third thermophilic microorganism culture fluid composed of fungi is administered and the temperature of the compressed air is adjusted to 60 ° C, whereby high-temperature fermentation can be effectively performed, In addition, it is possible to kill parasitic algae of the axillae.

The fermentation time (fermentation period) in each of the fermentation tanks in the middle temperature fermentation step (S200) and the high temperature fermentation step (S300) may vary depending on the scale of the composition (S) It is preferable to ferment for 3 days. In addition, the amount of each microorganism culture solution injected may be determined in an amount assigned to each fermentation tank within a range of 1 to 2 wt% of the total composition. For example, when the total composition is 10 tons, a culture medium of 100 to 200 kg of microorganism is added. Therefore, when passing through 10 fermentation tanks including one fermentation tank with stirring, 10 to 20 kg of microorganism culture solution is sprayed per fermentation tank. The injection time of the compressed air by the air injection unit 20 is determined by considering the target water content of the soil remediation agent using the final sewage sludge, the amount of the microbial culture liquid injected into each fermentation tank, and the amount of evaporation of the compressed air in each fermentation tank Can be determined.

In step S400 of growing the stirring copper 120, the composition S supplied through the mid-temperature fermentation step S200 and the high-temperature fermentation step S300 is mixed with nutrients (N, P, K) and trace elements (Mg, Mn, Cu, B, Mo, etc.), and the microorganisms used in the present manufacturing process can be used for garden, park, forest, reclaimed land, clearing ground, Soils and so on.

To this end, the sleeping step S400 may include a first maturing step S410, a temperature lowering step S420, and a second maturing step S430, as shown in FIG.

In the first sowing step S410, the composition S fermented in the sixth high temperature fermentation step is transferred to the fermentation tank 6 of the stirring copper 120, and the fermented product of Bacillus megaterium, Streptomyces Costa Ricanus, and Thermo A certain amount of the first thermophilic microorganism culture solution mixed with Ascus thermophilus may be injected, and compressed air of 50 캜 may be supplied and mixed to be maintained for a certain period of time.

The temperature lowering step S420 is a step of lowering the temperature by supplying compressed air at 30 DEG C to the composition S which has undergone the first roughening step and the second roughening step S430 is a step of cooling the composition S) was mixed with Pseudomonas putida, Pseudomonas proteens, Aspergillus calescimentii, and Rhodotorula aurantiaca, and the mixture was supplied with compressed air at 25 ° C, And adjusting the water content of the soil conditioner using the sludge.

The fermentation time in the fermentation tank (fermentation period (fermentation period), fermentation period (fermentation period), and fermentation period (fermentation period) are the same in the first mature stage S410 and the second mature stage S430 ), The injection amount of each microorganism culture liquid and the injection time of compressed air can be determined.

The composition S is changed to a middle temperature of about 25 캜 at a high temperature to allow the thermophilic microorganisms to adapt to the middle temperature to survive and to physically inactivate or die in the high temperature fermentation step By replenishing with the injection of the first mesophilic microbial culture liquid, it becomes possible to play a role as rhizosphere microorganism in the soil.

The method for producing a soil amendment agent using sewage sludge according to the present invention can provide a soil amendment agent using sewage sludge having a water content of 55% or less, preferably 30% or less. In addition, it is possible to contain physiologically stabilized rhizosphere microorganisms, and it is possible to provide the necessary nutrients contained in the soil improvement agent using the sewage sludge (hereinafter referred to as "soil nutrients") when the garden, park, reclaimed land, clearing ground, N, P, and K) as well as amino acids, nucleic acids, organic acids, vitamins, and corrosion, effectively destroys parasitic eggs in soil-borne phytopathogenic microorganisms and faeces, and solubilizes insoluble salts in soil So as to provide a soil modification effect.

10: floor groove of the floor 20: air injection device
30: microorganism culture liquid injection tube 40: gas discharge tube
50: chlorine dioxide generating device 60: exhaust device
70: line mixer 80: stirring device
90: forward and backward conveying device 100:
110: odor reducing apparatus 120: stirrer
140: Loading chamber 200: Packing chamber

Claims (9)

A fermentation aging step in which the aging copper, the agitating copper and the copper copper are divided into a production system and a fermentation copper; Growing in the stirring copper; And a step of storing and packing in the packed copper, wherein the step of fermenting and aging in the aged copper comprises the steps of preparing the composition, the middle temperature fermentation step and the high temperature fermentation step, In the improving agent,
In the aged copper, one preparation vessel and nine 2 to 10 fermentation vessels are symmetrically divided into two rows of the same size facing each other perpendicularly to the longitudinal direction,
The stirring copper is characterized in that at least one fermenter is longitudinally divided,
The medium-temperature fermentation step comprises adding a medium-temperature microorganism culture solution having a high caffeine-decomposing activity at 25 to 35 ° C., wherein the composition prepared in the preparation step of the composition is transferred from the preparation tank to the fermentation tank No. 2, mixed, and then Pseudomonas putida Trevisan Migula, Pseudomonas protegens, Aspergillus callestemii and Rhodotorula aurantiaca were injected, and the first mesophilic microorganism culture solution mixed with 30 Lt; RTI ID = 0.0 > C, < / RTI >
A second intermediate temperature fermentation step of transferring the composition fermented in the first intermediate temperature fermentation step to the fermentation tank No. 3, mixing the first medium temperature microorganism culture liquid, and supplying compressed air at 30 캜 to caffeine decomposition fermentation; And
The composition fermented by the second mild fermentation step is transferred to a fermentation tank No. 4 and mixed, and a second mesophilic microorganism culture solution mixed with Aspergillus callestemii and Rhodotorula aurantiaca And a third intermediate temperature fermentation step in which a predetermined amount of the nutrient solution is injected and fermented by supplying compressed air at 30 ° C,
Wherein the high-temperature fermentation step comprises adding a heat-resistant, high-temperature microorganism culture solution at 40 to 65 ° C.
The method according to claim 1,
Wherein the aged copper and the agitation copper each include an air injection device, a malodor reduction device, and at least one fermenter in independent closed spaces surrounded by a floor, a side wall, and a roof,
Wherein the air introducing device includes a plurality of long grooves which are opened at the bottom of the fermenter, a plurality of air supply pipes respectively disposed in the plurality of long grooves, an air distribution pipe connected to the plurality of air supply pipes, And a temperature control device for controlling the temperature of the compressed air is further provided between the air supply pipe and the air distribution pipe,
A microbial culture fluid injection tube having a plurality of nozzles facing the fermentation tank is installed inside each of the aged copper and the roof of the agitation copper,
The composition of the soil amendment agent using the sewage sludge is composed of sewage sludge, coffee grounds, barley, sawdust, zeolite and microorganism culture solution,
The temperature control device is configured to control the temperature of compressed air differently depending on the fermentation tank,
Wherein the microbial culture fluid injection tube is configured to inject the microbial culture fluid into the fermentation tank.
delete 3. The method of claim 2,
A rail is provided above both sidewalls of the fermentation tank for stirring,
The front and rear transfer devices are fastened to the rails,
Wherein an agitating device equipped with a vertical movement and a rotating means of an agitating arm is fastened to a predetermined frame in the front and rear conveying devices.
The method according to any one of claims 1, 2, and 4,
The composition of the soil amendment agent using sewage sludge consisted of 35% by weight of sewage sludge, 7% by weight of oyster and 5% by weight of egg white, 45% by weight of sawdust, 3% by weight of coffee bean, 3% by weight of zeolite and 2% Wherein the soil improvement agent is a soil improvement agent using sewage sludge.
A fermentation aging step in which the aging copper, the agitating copper and the copper copper are divided into a production system and a fermentation copper; Growing in the stirring copper; And a step of storing and packing in the packed copper, wherein the step of fermenting and aging in the aged copper comprises a composition preparation step, a middle temperature fermentation step and a high temperature fermentation step,
In the aged copper, one preparation vessel and nine 2 to 10 fermentation vessels are symmetrically divided into two rows of the same size facing each other perpendicularly to the longitudinal direction,
The stirring copper is characterized in that at least one fermenter is longitudinally divided,
The medium-temperature fermentation step comprises:
The composition prepared in the composition preparation step is transferred from the preparation tank to the fermentation tank No. 2 and mixed to obtain a mixture of Pseudomonas putida (Trevisan) Migula, Pseudomonas protegens, Aspergillus callestemii, A first mesophilic fermentation step in which a culture medium of a first mesophilic microorganism mixed with Rhodotorula aurantiaca is fed and caffeine decomposition fermentation is performed by supplying compressed air at 30 ° C;
A second intermediate temperature fermentation step of transferring the composition fermented in the first intermediate temperature fermentation step to the fermentation tank No. 3, mixing the first medium temperature microorganism culture liquid, and supplying compressed air at 30 캜 to caffeine decomposition fermentation; And
The composition fermented by the second mild fermentation step is transferred to a fermentation tank No. 4 and mixed, and a second mesophilic microorganism culture solution mixed with Aspergillus callestemii and Rhodotorula aurantiaca A third medium temperature fermentation step in which a predetermined amount of water is injected and fermented by feeding compressed air at 30 ° C.
The method according to claim 6,
In the high-temperature fermentation step, a thermophilic microorganism culture solution is added at 40 to 65 ° C,
The composition fermented by the third intermediate temperature fermentation step was transferred to a fermenter No. 5 and mixed and mixed with Bacillus megaterium, Streptomyces costaricanus and Thermoascus thermophilus A first high temperature fermentation step of pouring the first thermophilic microbial culture solution and feeding it with compressed air at 45 ° C;
A second high temperature fermentation step of transferring and mixing the composition fermented in the first high temperature fermentation step to a fermentation tank No. 6, injecting a predetermined amount of the first thermophilic microorganism culture liquid, and supplying the compressed air at 50 ° C to ferment;
A third high temperature fermentation step of transferring the composition fermented in the second high temperature fermentation step to a fermentation tank No. 7, mixing the same, injecting a predetermined amount of the first thermophilic microorganism culture liquid, and supplying compressed air at 50 ° C to ferment;
The composition fermented by the third high-temperature fermentation step is transferred to the fermenter No. 8 and mixed, and a second thermophilic microorganism culture solution in which Streptomyces costaricanus and Thermoascus thermophilus are mixed is mixed with a predetermined amount A fourth high-temperature fermentation step of feeding fermentation by supplying compressed air at 50 ° C;
The composition fermented by the fourth high temperature fermentation step is transferred to a fermenter No. 9 and mixed. A predetermined amount of a third thermophilic microorganism culture solution containing Thermoascus thermophilus is injected, and 55 ° C compressed air is supplied A fifth high temperature fermentation step in which the fermentation is performed; And
And a sixth high temperature fermentation step in which the composition fermented by the fifth high temperature fermentation step is transferred to and mixed with the fermentation tank No. 10, a certain amount of the third thermophilic microorganism culture liquid is injected and fermented by supplying compressed air at 60 ° C A method for producing a soil conditioner using sewage sludge characterized in that
8. The method of claim 7,
Wherein the step of growing in the agitating copper comprises a first post-growing step, a temperature lowering step and a second post-growing step,
The first fermentation step is a step of transferring the composition fermented in the sixth high temperature fermentation step to the fermentation tank of the stirring fermenter, injecting a certain amount of the first thermophilic microorganism culture liquid, supplying compressed air at 50 ° C, Wherein the method comprises the steps of:
9. The method of claim 8,
The temperature lowering step is to lower the temperature by supplying compressed air at 30 DEG C to the composition after the first maturing step,
Wherein the second mesophilic step is performed by injecting the first mesophilic microbial culture solution into the composition after the temperature lowering step and supplying the compressed air at 25 DEG C to adjust the water content of the soil amendment agent Gt;

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