CN102487907B - Fly larva reactor suitable for bioconversion of organic solid waste - Google Patents
Fly larva reactor suitable for bioconversion of organic solid waste Download PDFInfo
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- CN102487907B CN102487907B CN 201110444689 CN201110444689A CN102487907B CN 102487907 B CN102487907 B CN 102487907B CN 201110444689 CN201110444689 CN 201110444689 CN 201110444689 A CN201110444689 A CN 201110444689A CN 102487907 B CN102487907 B CN 102487907B
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Abstract
The invention discloses a fly larva reactor suitable for bioconversion of organic solid waste, which comprises a fly larva conversion bed, a built-in movable sun shading mesh curtain, a transparent plastic thin film and a movable roller blind, wherein the built-in movable sun shading mesh curtain is arranged above the fly larva conversion bed; the transparent plastic thin film is arranged above the built-in movable sun shading mesh curtain; after being unfolded, the built-in movable sun shading mesh curtain can be used for shading light transmitted by the transparent plastic thin film; the upper end of the movable roller blind is connected with the transparent plastic thin film, and the lower end of the movable roller blind is connected with the ground; a buffer zone is arranged between the movable roller blind and the fly larva conversion bed; and a thermal-insulation material is arranged in the buffer zone. According to the invention, the daily average temperature of the fly larva reactor can be kept between 18 and 30 DEG C, the margin temperature difference between 2 and 5 DEG C, the illumination intensity lower than 30,001x and the humidity lower than 85 percent; and thus, thereactor can operate all the year round, the fly larva yield is high and stably, the reduction in the waste is obvious, and the industrialization degree is high. The reactor is suitable for large-scale farms and storage yards.
Description
Technical field
The present invention relates to a kind of fly maggot reactor design that is applicable to the organic solid castoff biological transformation; the biological and ecological that is applicable to livestock and poultry farm, changing food waste processing field/terminal, municipal sludge and food waste/grain the like waste is handled; and produce the high added value fly maggot, belong to field of environment protection.
Background technology
Along with rapid economy development, generation and the stacking of organic solid castoff (as feces of livestock and poultry, sewage treatment plant residual mud or castoff etc.) have caused tangible environmental pollution, and jeopardize public health.For example, national feces of livestock and poultry year in 2010 generation will be up to 4,500,000,000 tons, the processing and utilizing rate is but less than 15%, more than 14000 of the plants of the existing various scales in the whole nation, plant's animal waste of about 80% fails to be effectively addressed and to utilize.Because the habit of food corpse corruption organic waste is got in hobby, abnormalism is grown the natural biological reactor that diptera fly maggot (as housefly Musca Domestica) is biological transformation and degraded organic waste.In cycle, discarded object degradation rate (as organic, odorant) and main discarded object minimizing (water content, total solid material etc.) index all reach 20%-90% at a maggot grow of 5-10 days; With the time simultaneously, results are that the fly maggot of food is to produce the insect protein (55%-63%) that (as fishery, aviculture) provides high-quality with the discarded object.In addition, because fly maggot is rich in unsaturated fatty acid (8%-12%), polypeptide and polysaccharose substance, having occurred is new industries such as the biological medicine of raw material and fine chemistry industry with the fly maggot.Obviously the efficient fly maggot reactor of exploitation, and optimize the special growth metabolism process of fly maggot reach organic solid castoff resource, minimizing, high-valued be a current important technology research direction.
Only handle the sport technique segment of discarded object from fly maggot, say inductively, the technology (pattern) about fly maggot breeding and production mainly is divided into both at home and abroad: simple producing technology and batch production production technology.The former is that principle is utilized large scale plastic basin, watt cylinder, reached the brick and tile cement pit is handled discarded object as fly maggot physical space to gather materials on the spot.This technology is applicable to farm and family on a small scale, and cost hangs down double but benefit is low.And the batch production production model is to utilize the physical space of one-storey house or plastic tunnel, and discarded object (or culture matrix) is bar buttress shape or gridding ground breed fly maggot, is applicable to that corporation farm or stockyard produce the economic benefit height.Wherein the plastic tunnel pattern provides robust techniques for carrying out fly maggot breeding under the cryogenic conditions, and one-storey house aquaculture model (being one-storey house fly maggot reactor) agent structure is fly maggot conversion bed and general brick and tile one-storey house, often needs to heat to guarantee fly maggot production in winter by external source.A kind of solid waste anaerobism production capacity-fly maggot that utilizes also occurs abroad, and transform knockdown reactor.
At present, still there is technical deficiency in the fly maggot batch production production technology pattern that possesses industrialization and remarkable in economical benefits aspect the preference temperature of regulation and control maggot grow, namely lack and be specifically designed in the physical space of maggot grow regulation device or the equipment of regulating and satisfying the required preference temperature of fly maggot (18-30 ℃), and this deficiency is often because winter temperature is low excessively, the too high fly maggot underproduction and the offal treatment usefulness of causing of summer temp reduces.Secondly, photophobism is a key property of maggot grow habit, when outside light intensity reaches 20000lx, and impaired, the poor growth of fly maggot organ; When outside light intensity reaches 5000lx, fly maggot is avoided the food at intense light source place; When outside light intensity reaches 1000lx when following, maggot grow and pickuping food are not influenced by light source.Summer, outdoor sunlit light intensity can reach 60000-100000lx, also can reach 10000-50000lx in the winter time.Because prior art lacks necessary sunshade equipment or equipment, under outdoor intense light irradiation environment, the fly maggot in the reactor be drilled in a large number the heap body below, cause the irregular or dead angle of offal treatment, also reduce fly maggot output simultaneously.In addition, the quick bio dehydration is the important mechanism that fly maggot transformed and realized the discarded object minimizing, and existing fly maggot industrialization pattern does not have supporting ventilation dewetting device or equipment on hardware, causes the low and remote-effects fly maggot output of discarded object dehydrating effect.
Development is lasting, stable, the fly maggot reactor is an urgent demand of large-scale organic solid castoff processing and recycling efficiently.For this reason, deficiency at existing batch production fly maggot treatment technology, the present invention has carried out at the design of the novelty of plastic tunnel pattern fly maggot reactor monolith structure, has successfully developed and has been applicable to industrialization, effectively regulated and control the fly maggot reactor of preference temperature-illumination-humidity.Than existing technology, the present invention is remarkable in aspect of performance advantages such as " whole year operation, stable high yield, discarded object minimizing are remarkable " of fly maggot offal treatment technology.
Summary of the invention
But technical problem to be solved by this invention provides a kind of fly maggot reactor of whole year operation.
The present invention solves the technological means that its technical problem takes: the present invention is applicable to that the fly maggot reactor of organic solid castoff biological transformation comprises that fly maggot transforms bed, built-in movable sunshade lace curtaining, transparent plastic film and movable roller shutter, described built-in movable sunshade lace curtaining is located at the top that fly maggot transforms bed, transparent plastic film is located at the top of described built-in movable sunshade lace curtaining, can be used in after described built-in movable sunshade lace curtaining launches and blocks the light that is seen through by described transparent plastic film; The upper end of described movable roller shutter is connected with transparent plastic film, and the lower end of described movable roller shutter is connected with ground, is provided with buffering area between the pool wall of described movable roller shutter and fly maggot conversion bed, is provided with the insulation material in the described buffering area.
Preferably, the present invention also is provided with the external movable sunshade lace curtaining of one deck at least above described transparent plastic film.
Preferably, insulation material of the present invention be in wood chip, rice husk, the straw any or appoint several.
Preferably, the height of the insulation material in the buffering area of the present invention is the 75%-100% that fly maggot transforms the pool wall height of bed.
Compare with prior art (as one-storey house facility fly maggot breeding field technology scheme), the invention has the beneficial effects as follows:
1. the top of fly maggot reactor of the present invention is covered by transparent plastic film, and temperature is crossed when hanging down in the winter time, effectively regulates the internal temperature of fly maggot reactor to 18-30 ℃, has the temperature control effect of fly maggot reactor; The movable sunshade net of plastic film outside can reduce temperature of shed when summer temp is too high: when summer, light intensity was higher than 4000lx, fly maggot transforms effectively lucifuge of a built-in movable sunshade lace curtaining of top, make and inject the intensity of illumination that fly maggot transforms bed and be no more than 3000lx, thereby avoid fly maggot to be subjected to the high light damage and guarantee that the biological transformation of fly maggot ight soil is even; And buffering area can effectively reduce the back gauge temperature difference that fly maggot transforms bed, fly maggot is uniformly distributed in transforms in the bed; When the humidity in the fly maggot reactor greater than 85% the time, can open movable roller shutter, promote fly maggot reactor hydrofuge; The present invention is above-described to guarantee that the globality technological innovation of " preference temperature-illumination-humidity " that the fly maggot conversion is required is that existing fly maggot reactor technology is not available.
Fly maggot reactor of the present invention can be in annual 12 months holding temperature 18-30 ℃, 2-5 ℃ of the back gauge temperature difference, illumination be lower than 3000lx, humidity is lower than 85%, has solved the technical bottleneck of fly maggot discarded object biological transformation " whole year operation, stable high yield, discarded object minimizing are remarkable "; The technology efficiency that the present invention gives prominence to is that one-storey house facility fly maggot breeding field technology is not available.
3. technical indicator of the present invention is outstanding: in the phase (4-6 days), the minimizing index of main organic solid castoff reaches more than 50% at a maggot grow; Fresh fly maggot output can reach 50-200kg/t simultaneously, and the changing rejected material to useful resource potentiality are remarkable.
4. processing object of the present invention is extensive: the organic solid castoff source comprises livestock and poultry cultivation ight soil, changing food waste, food processing residue material, municipal excess sludge etc.
Description of drawings
Fig. 1 is the overall structure schematic diagram of fly maggot reactor of the present invention;
Fig. 2 is the distribution schematic diagram that the fly maggot in the fly maggot reactor of the present invention transforms bed;
Fig. 3 is the structural representation of the built-in movable sunshade lace curtaining in the fly maggot reactor of the present invention.
Embodiment
Referring to Fig. 1 to Fig. 3, the main part of fly maggot reactor of the present invention comprises: fly maggot transforms bed 1, transparent plastic film 3, built-in movable sunshade lace curtaining 5, movable roller shutter 7 and buffering area 9.Below describe the present invention in detail with specific embodiment.
Fly maggot reactor shown in Figure 1 is provided with aluminium alloy greenhouse bracket 2, and the top profile is vaulted, and support is outside to cover transparent plastic film 3, and the external movable sunshade net 4 of at least one layer is set outside transparent plastic film 3.The concrete number of plies of external movable sunshade lace curtaining 4 is decided according to the local climate condition, also can remove according to the actual requirements.Fly maggot is installed in the fly maggot reactor transforms bed 1, the present invention does not have particular requirement to the shape that transforms the bed structure, is generally rectangle, can adopt cement concrete to cast.Fly maggot transforms the top of bed 1 and establishes built-in movable sunshade lace curtaining 5.As shown in Figure 3, built-in movable sunshade lace curtaining 5 is fixing by support column in movable 6, and an end of built-in movable sunshade lace curtaining 5 connects curtain rolling shaft 13, and the other end connects roller shutter cross bar 14." C " type track 15 and movable interior support column 6 co-altitudes; The circular bulge position, two ends of roller shutter cross bar 14 is chimeric with " C " type track; By connecting the built-in movable sunshade lace curtaining 5 of pull rope 16 folding and unfoldings of " C " type track, take in built-in movable sunshade lace curtaining 5 by roller shutter handle 17.Can be used in after built-in movable sunshade lace curtaining 5 launches and block the light that is seen through by transparent plastic film 3.Usually, the minimum point of transparent plastic film 3 is in built-in movable sunshade lace curtaining below 5, thereby guarantees when summer, intensity of illumination was too high, and light can directly not injected fly maggot and transform bed 1, can be blocked by built-in movable sunshade lace curtaining 5.The upper end of movable roller shutter 7 is connected with transparent plastic film 3 by roller shutter handle 8, and bottom and ground join, can overing by roller shutter handle 8 control roller shutters.The outer wall of the pool wall of fly maggot conversion bed 1 and the ground between the movable roller shutter 7 are provided with the insulation material, thereby form buffering area 9 between the pool wall of movable roller shutter 7 and fly maggot conversion bed 1.The height that delays the insulation material in the district is the 75%-100% that fly maggot transforms the pool wall height of bed 1, can guarantee that thus the back gauge temperature difference of fly maggot conversion bed 1 is no more than 2-5 ℃.For preventing the heavy showers influence, can prevent that heavy showers from causing fly maggot to transform bed and being flooded in excavation drain ditch 10, the outside of movable roller shutter 7.
In fly maggot reactor of the present invention, can suitably add the number that fly maggot transforms bed 1 according to process lot size, disposing way there is no fixedly requirement, generally can put as Fig. 2, a plurality of fly maggots can be transformed a fly maggot transformation of bed 1 formation placed side by side district, be provided with gallery 7 handled easilies of certain width between each fly maggot transformation district, the two ends of gallery 7 are respectively equipped with operation import 11 and operation outlet 12.The built-in movable sunshade lace curtaining 5 that fly maggot transforms bed 1 top can wholely cover whole fly maggot transformation district, also can set a built-in movable sunshade lace curtaining 5 respectively separately above each fly maggot transforms bed.In the preferred wood chip of insulation material in the buffering area 9, rice husk, the straw any or appoint severally, these living beings insulation materials can not only play heat insulation effect preferably, and with low cost, environmental sound.
Fly maggot is the larva body of diptera man's Nuscidae (Cyclorrhapha), fly maggot reactor of the present invention is applicable to multiple fly kind, for example: housefly (Musca domestica), green glow fly (Lucilia Sericata), golden head fly (Chrysomyia Megacephala), false stable fly (Muscina Stabulans), black soldier fly (Diptera Stratiomyidae) etc.
When outdoor daily mean temperature is lower than 18 ℃ (autumn is to winter), collect the external movable sunshade lace curtaining 4 of fly maggot reactor outside, to improve air daily mean temperature in the fly maggot reactor to 18-30 ℃; When outdoor daily mean temperature in (as the volt summer) more than 25 ℃, open the external movable sunshade lace curtaining 4 of fly maggot reactor outside, make the air daily mean temperature in the fly maggot reactor reach 20-30 ℃; When intensity of illumination between daytime during greater than 4000lx, arrange the built-in movable sunshade lace curtaining that fly maggot transforms the bed top, make that intensity of illumination is no more than 3000lx in the fly maggot reactor; When humidity in the fly maggot reactor greater than 85% the time, open movable roller shutter, promote fly maggot reactor hydrofuge; The ground that transforms between bed 1 and the movable roller shutter 7 at fly maggot arranges the buffering area 9 that width is about 10-50cm, and living beings insulation materials such as filled with wood chips, rice husk, straw in the buffering area can guarantee that fly maggot transforms bedside and is no more than 2-5 ℃ apart from the temperature difference.
When using the fly maggot reactor for treatment organic solid castoff of present embodiment, organic solid castoff is tiled in fly maggot transforms in the bed; Add children maggot in 1 age on the organic solid castoff surface, young maggot addition is the 0.1%-1.0% that organic solid castoff is handled gross weight.After 4-6 days, organic solid castoff gross weight decline 45-75%, moisture content weight decline 50%-85%, stink index decline 70-95%, Escherichia coli index decline 65-90%, the fresh fly maggot output of organic solid castoff per ton can reach 50-200kg/t simultaneously.
The performance test of fly maggot reactor of the present invention:
(1) test of relevant temperature control is as follows:
Test the structure of used fly maggot reactor: aluminium alloy greenhouse bracket 2 is of a size of length * wide * height=2500cm * 600cm * 380cm, the top profile is vaulted, the outside covering of support is thick to be 0.08cm transparent plastic film 3, at transparent plastic film 3 the external movable sunshade net 4 of one deck black is installed, the inside of fly maggot reactor is installed fly maggot and is transformed bed 1, the working cell that each fly maggot transforms bed 1 is of a size of length * wide * height * thick=500cm * 200cm * 20cm * 15cm, transforms the bed structure and all adopts cement concrete to cast; Each fly maggot transformation district transforms bed 1 by 5 fly maggots placed side by side and constitutes, and is provided with the wide operating gallery of 120cm 7 between each fly maggot transformation district.Built-in movable sunshade lace curtaining 5 is installed above each fly maggot conversion bed and apart from ground 120cm place, the both sides of aluminium alloy greenhouse bracket 2 are that movable roller shutter 7 is repacked at the 100cm place into apart from ground level, the top of roller shutter is connected with transparent plastic film 3, the overing of hand control roller shutter 7, bottom and the ground of movable roller shutter 7 are fixed by roller shutter.On the ground between fly maggot conversion bed 1 and the movable roller shutter 7 buffering area 9 that width is 35cm is set, fills rice husk in the buffering area.Discarded object is fresh pig manure, and water content is 78.3 ± 5.4%, crude fiber content is 17.2 ± 2.8%, total nitrogen content is 2.99 ± 0.65%, total phosphorus content is 1.82 ± 0.54%, total potassium content is 1.79 ± 0.12%.The maggot kind is housefly (Musca domestica), and 1 age, children maggot addition was 0.5% of fresh pig manure gross weight per ton, i.e. 5.0kg/t; The average stacking height (being waste height) of pig manure is 10.4 ± 2.7cm, and the processing time of every batch of fly maggot conversion pig manure is 6 days.And one-storey house fly maggot reactor of the prior art is fly maggot to be transformed bed place in the general brick and tile one-storey house, and the top does not cover transparent plastic film, and does not establish buffering area and built-in movable sunshade lace curtaining.Fly maggot is transformed bed be positioned in the brick structured bungalow of length * wide * height=1000cm * 600cm * 400cm, the design of fly maggot conversion bed and workspace size thereof is consistent with fly maggot conversion bed of the present invention.The air themperature testing time is 10 o'clock every mornings; Heap temperature is the temperature at the 3rd day heap body middle part, young maggot inoculation back, and Measuring Time is at 10 o'clock in the morning.
The temperature adjusting difference of table 1 the present invention and one-storey house fly maggot reactor
From the data of table 1 as can be known, except summer and autumn indivedual time period temperature be higher than 30 ℃, the temperature of fly maggot reactor of the present invention all more than 15 ℃, is higher than the minimum temperature of maggot grow, temperature can reach 18-30 ℃ especially in the winter time.Comparatively speaking, under the existing routine techniques condition, except keeping the preference temperature of maggot grow whole winter and the temperature condition that can not satisfy maggot grow and processing spring over half summer.In addition, the variation of fly maggot reactor of the present invention temperature in annual scope is little, temperature stability good, is conducive to keep treatment efficiency and fly maggot output stably; And the annual temperature Change of one-storey house fly maggot reactor is big, temperature stability is poor, transforms usefulness and fly maggot and yields poorly.Just because of the difference of temperature regulation and control usefulness, the temperature of heap body can be stabilized between 26.3 ℃ (winters) to 38.3 ℃ (summers) in the fly maggot reactor of the present invention, thereby accelerated the efficient conversion of heap body discarded object and improve fly maggot output.
(2) test of the back gauge temperature difference of relevant fly maggot reactor of the present invention is as follows:
The test condition of this test and " test of relevant temperature control " basically identical.Set two groups of fly maggot reactors of the present invention, do not establish one-storey house fly maggot reactor, and only the fly maggot in the group reaction device transforms on the ground between bed and the movable roller shutter buffering area that width is 35cm is set therein, fill rice husk in the buffering area, packed height is contour with conversion bed pool wall, and another group does not then dispose buffering area.Testing time is January in winter.
Table 2 buffering area set up the influence (January in winter) that fly maggot is transformed bed tempertaure and fly maggot output
From table 2 data as can be known, in the fly maggot reactor of configuration buffering area, the heap temperature in whole winter on average reaches 28.5 ± 2.4 ℃, and the heap temperature of close movable roller shutter one side on average reaches 26.7 ± 3.5 ℃, and the back gauge temperature difference only is 1.8 ± 0.4 ℃.And meanwhile, in the fly maggot reactor of no-buffer, the back gauge temperature difference of fly maggot heap body reaches 6.3 ± 1.2 ℃.Because reactor block temperature inequality, its bright fly output of the reactor of no-buffer drops to 75 ± 16kg/t, and rate of descent is 15.7%.The on-the-spot discovery has in the reactor of buffering area, fly maggot is evenly distributed, the pig manure biological transformation evenly and thoroughly, stink significantly descends; And fly maggot is assembled to the inboard that transforms bed in the reactor of no-buffer, and the pig manure biological transformation is not thorough, stink is strong.Obviously buffering area has very important effect for the temperature adjusting effect and the fly maggot stable yields that ensure fly maggot conversion bed.
(3) test of relevant hydrofuge is as follows:
The test condition of this test and above " test of relevant temperature control " basically identical.If two groups of fly maggot reactors of the present invention: wherein a group reaction device is provided with movable roller shutter (being processed group), the position is 100cm place overhead, top is connected with transparent plastic film and is fixing, and the bottom is connected with ground and can opens or close roller shutter from the below by handle; Another group reaction device is not established movable roller shutter (being control group), and transparent plastic film covers whole fly maggot reactor and joins with ground.When the air humidity in the fly maggot reactor surpasses 85%, open the movable roller shutter of processed group; When being lower than 65%, air humidity then closes.Testing time is October in winter.
The movable roller shutter of table 3 is to the influence of discarded object minimizing (be example with the dehydration) and fly maggot output
From the data of table 3 as can be known, being provided with the heap body residue water content that the processed group of movable roller shutter obtains is 47.6 ± 1.6%, and the moisture content minimizing reaches 80.0 ± 3.6%.And the corresponding residue water content of the control group that does not have movable roller shutter still has 59.7 ± 3.2%, and moisture content minimizing level is low to be about 58.5 ± 4.4%.Obviously, but movable roller shutter available ventilation and dehumidifying, pig manure biologically dehydrating usefulness is remarkable, thereby improves growth and the metabolism of fly maggot indirectly, and the average yield that obtains bright fly reaches 104 ± 11kg/t.Meanwhile, the bright maggot output of reactor of not having a movable roller shutter has descended 16.3%.Obvious movable roller shutter has very important effect equally for the minimizing degree and the fly maggot stable yields that ensure discarded object in the fly maggot reactor.
(4) test of relevant lucifuge is as follows:
The present invention realizes that in the fly maggot reactor facility of effective lucifuge is built-in movable sunshade lace curtaining.Set two groups of fly maggot reactors of the present invention, draw back the built-in movable sunshade lace curtaining that fly maggot in the group reaction device wherein transforms bed top, and movable sunshade lace curtaining that another group fly maggot transforms the bed top does not draw back all the time.Other test condition and above-mentioned " test of relevant temperature control " basically identical.
The efficiency ratio of the built-in movable sunshade lace curtaining regulation and control fly maggot reactor intensities of illumination of table 4 (lx)
As known from Table 4, use the fly maggot of built-in movable sunshade lace curtaining to transform bed, the range of light intensity that receive summer is 0.2-3290lx, and the range of light intensity that receive winter is 0.0-2470lx, obviously use built-in movable sunshade lace curtaining to be conducive to fly maggot and handle discarded object equably, do not stay the dead angle; The on-the-spot fly maggot of finding is distributed in the whole discarded object heap body equably.Meanwhile, do not use the fly maggot of built-in movable sunshade lace curtaining to transform bed, the range of light intensity that receive summer is 0.2-93800lx, and winter, light intensity reached 0.0-64800lx.Field observation is found: the morning 10:00 to the time period of 16:00 in afternoon, " hide " bottom of discarded object heap body of fly maggot more than 50%, rest on the fly maggot on discarded object surface seldom, cause fly maggot inhomogeneous to waste treatment, top layer offal treatment rate is low.
The application example of fly maggot reactor of the present invention:
(1) fly maggot output
Fly maggot reactor of the present invention and one-storey house fly maggot DESIGN OF REACTOR condition, pig manure source and characteristic etc. are consistent with above-mentioned " performance test of fly maggot reactor of the present invention " part, but the processing time that single batch of fly maggot transforms pig manure is designed: spring and autumn is that 6 days, summer are that 5 days, winter are 7 days.
The fly maggot production ratio of table 5 the present invention and one-storey house fly maggot reactor, unit: kg/t (pig manure)
Obviously, the annual fresh fly maggot output that obtains of table 5 explanation fly maggot reactor of the present invention reaches 86 ± 14kg/t to 112 ± 12kg/t, and dry weight reaches 25.3 ± 3.1kg/t to 31.8 ± 4.5kg/t; Annual fly maggot output is relatively stable.By contrast, the annual fresh fly maggot output that obtains of one-storey house fly maggot reactor is 27 ± 23kg/t to 105 ± 12kg/t, and dry weight is 7.1 ± 6.4kg/t to 30.8 ± 3.1kg/t; Output is lower than the technology of the present invention, and volume variance is big in Various Seasonal, especially whole winter fly maggot all dead because of low temperature.
The fly maggot production ratio of table 6 the present invention and one-storey house fly maggot reactor, unit: kg/t (chicken manure)
When for the examination discarded object when being fresh chicken manure, water content is 52.5 ± 6.1%, crude fiber content is 19.8 ± 3.5%, total nitrogen content is 5.32 ± 1.02%, total phosphorus content is 4.32 ± 0.74%, total potassium content is 3.45 ± 0.42%.Other test condition is consistent with the pig manure of this link.Similar with pig manure, the annual production index of fly maggot reactor of the present invention all is higher than one-storey house fly maggot reactor to some extent, and annual bright maggot output is basicly stable at 140-182kg/t; And the bright maggot output of one-storey house fly maggot reactor has only 97-102kg/t, and fly maggot in whole winter can't grow (table 6).Therefore, the present invention is directed to different types of discarded object significant biological treatment effect and stable fly maggot output are all arranged.
(2) discarded object minimizing usefulness
Fly maggot reactor of the present invention is consistent with above-mentioned " performance test of fly maggot reactor of the present invention " part with the design of one-storey house fly maggot reactor, pig manure source and characteristic etc. about application places, the fly maggot reactor of discarded object minimizing usefulness.The test index of relevant discarded object minimizing (RM:%) is defined as follows: RM (%)=(FM-LM)/FM * 100%, wherein FM is the weight (kg) of a certain discarded object index before fly maggot is handled, LM be after fly maggot is handled this discarded object index in the weight (kg) of heap body; Discarded object index for the minimizing test has " gross weight ", " dry amount " to reach 9 (tables 7) such as " Escherichia coli ".
The discarded object minimizing of table 7 the present invention and one-storey house fly maggot reactor relatively
As known from Table 7: in summer, 9 discarded object minimizing indexs of fly maggot reactor of the present invention reach 18%-95%, wherein be respectively 95% and 80% with the closely-related odor index of health with post processing and the minimizing degree of transporting two indexs of closely-related moisture content amount, the degree of gross weight minimizing has meanwhile also reached 67%.In the winter time, above-mentioned minimizing index is lower than summer slightly, but has also reached 12%-93%, and wherein the minimizing degree of odor index and moisture content amount is 93% and 79%.One-storey house fly maggot reactor every discarded object minimizing level when summer operation is suitable substantially with the present invention, but in the winter time, discarded object minimizing degree only reaches 0.1%-16%, and obviously usefulness is low.
(3) the intensity of illumination regulation and control are to the influence of fly maggot output and discarded object minimizing usefulness
Fly maggot reactor of the present invention is partly consistent with " performance test of fly maggot reactor of the present invention " about the application places of discarded object minimizing usefulness, fly maggot DESIGN OF REACTOR of the present invention, pig manure source and characteristic etc.Set two groups of fly maggot reactors of the present invention, draw back the built-in movable sunshade lace curtaining that fly maggot in the group reaction device wherein transforms bed top, and movable sunshade lace curtaining that another group fly maggot transforms the bed top does not draw back all the time.Testing time is summer (15-July 30 July).
The built-in movable sunshade lace curtaining of table 8 compares (summer) to the influence of fly maggot output and discarded object minimizing
As known from Table 8, install and use built-in movable sunshade lace curtaining can improve the fly maggot output of 15-19%.From the scene, do not use the fly maggot conversion bed surface of built-in movable sunshade lace curtaining to be subjected to the high light direct projection, cause boring under the fly maggot or death, thereby reduce fly maggot output.For discarded object minimizing index, compare with not using group, use built-in movable sunshade lace curtaining can significantly improve the about 23%-43% of each minimizing index.Obviously, use built-in movable sunshade lace curtaining not only can improve fly maggot output, also can improve discarded object minimizing degree simultaneously.Use the fly maggot of built-in movable sunshade lace curtaining to transform bed, its mechanism is effectively to reduce intensity of illumination, thereby making the interior fly maggot of processed group be evenly distributed, get in piling body eats evenly, healthy growth, and the biological transformation of heap body is even, thorough.
Claims (4)
1. fly maggot reactor that is applicable to the organic solid castoff biological transformation, it is characterized in that: comprise that fly maggot transforms bed, built-in movable sunshade lace curtaining, transparent plastic film and movable roller shutter, described built-in movable sunshade lace curtaining is located at the top that fly maggot transforms bed, described transparent plastic film is located at the top of built-in movable sunshade lace curtaining, can be used in after described built-in movable sunshade lace curtaining launches and blocks the light that is seen through by described transparent plastic film; The upper end of described movable roller shutter is connected with transparent plastic film, and the lower end of described movable roller shutter is connected with ground, is provided with buffering area between the pool wall of described movable roller shutter and fly maggot conversion bed, is provided with the insulation material in the described buffering area.
2. fly maggot reactor according to claim 1 is characterized in that: also be provided with the external movable sunshade lace curtaining of one deck at least above described transparent plastic film.
3. fly maggot reactor according to claim 1 is characterized in that: described insulation material be in wood chip, rice husk, the straw any or appoint several.
4. according to each described fly maggot reactor in the claim 1 to 3, it is characterized in that: the height of the insulation material in the described buffering area is the 75%-100% that fly maggot transforms the pool wall height of bed.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716371A (en) * | 1971-02-08 | 1973-02-13 | Us Agriculture | Separator for negatively phototactic housefly larvae from chicken hen excreta |
| CN201430853Y (en) * | 2009-06-12 | 2010-03-31 | 王善钧 | Multilayer high-density and semi-automatic maggot breeding pool device |
| CN202425470U (en) * | 2011-12-27 | 2012-09-12 | 浙江大学 | Fly maggot reactor suitable for organic solid waste bioconversion |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004181379A (en) * | 2002-12-04 | 2004-07-02 | Purotekku:Kk | Method and apparatus for organic waste disposal |
| KR20100041294A (en) * | 2008-10-14 | 2010-04-22 | 대한민국(관리부서:농촌진흥청장) | Device leading oviposition and growth of black soldier fly by art |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3716371A (en) * | 1971-02-08 | 1973-02-13 | Us Agriculture | Separator for negatively phototactic housefly larvae from chicken hen excreta |
| CN201430853Y (en) * | 2009-06-12 | 2010-03-31 | 王善钧 | Multilayer high-density and semi-automatic maggot breeding pool device |
| CN202425470U (en) * | 2011-12-27 | 2012-09-12 | 浙江大学 | Fly maggot reactor suitable for organic solid waste bioconversion |
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