CN101913923A - Process for treating solid waste compost in hoggery - Google Patents
Process for treating solid waste compost in hoggery Download PDFInfo
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- CN101913923A CN101913923A CN2010102325194A CN201010232519A CN101913923A CN 101913923 A CN101913923 A CN 101913923A CN 2010102325194 A CN2010102325194 A CN 2010102325194A CN 201010232519 A CN201010232519 A CN 201010232519A CN 101913923 A CN101913923 A CN 101913923A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
The invention discloses a process for treating solid waste compost in a hoggery. On the basis of the traditional compost treatment process and by comprehensively considering the influence of the content of water, pH value, C/N value and other factors on the quality of fertilizer, the invention provides a specific compost operation parameter. After the pig manure is subjected to the compost treatment by using the process of the invention, the fertility of the manure is proper; and the manure is better absorbed by the soil in the same area, thereby relieving the pressure that the manure is absorbed by a large area of land under the condition that the yield of pig manure is higher. The invention has the advantages of simple process, easy realization, high compost efficiency, high agriculture utilization value of the manure and low harm on the soil after being utilized to the farmland.
Description
Technical field
The present invention relates to the waste harmless treatment, be specifically related to a kind of process for treating solid waste compost in hoggery.
Background technology
In recent years, China's animal husbandry development was very fast, and was the most outstanding with live pig and herbvore livestock, and was the main pattern of development with intensive culture and sub-district healthy aquaculture, and aquaculture just develops towards the direction of specialization, mass-producing, intensification.
The continuous expansion of intensive culture scale and quantity and the ight soil that breeding production is produced, the concentrated discharging of sewage have caused severe environmental pollution, mainly show following four aspects: 1, pollution of waterhead, according to the assay of environmental administration to the liquid dung of medium-and-large-sized plant eliminating, COD exceeds national standard 50-70 doubly in most plants liquid dung, BOD exceeds national standard 70-80 doubly, SS exceeds national standard 12-20 doubly, colibacillus, roundworm worm's ovum, nitrogen and phosphorus content and other pollutent have also all substantially exceeded the sewage drainage standard of national regulation.The livestock and poultry organic sewage of high density enters rivers and lakes, is the immediate cause that causes body eutrophication, causes continuous deterioration dead gradually to the aquatic organism of Organic pollutants sensitivity, water quality; Poisonous, the objectionable constituent of feces of livestock and poultry pollutent also penetrate in the underground water easily simultaneously, underground water solution gas content is reduced, and toxic ingredient increases in the water quality, makes water body turn black, foul, lose use value when serious, the waste water control difficulty is big, and it is of a specified duration to pollute time remaining; 2, atmospheric pollution, contain poisonous and harmful elements such as a large amount of ammonia, sulfide, methane in the foul gas that plant produces, pollute ambient air, had a strong impact on Air quality, harm keeper and surrounding resident are healthy, and also influence the normal growth of livestock and poultry; 3, soil pollution, feces of livestock and poultry and sewage originally are good organic fertilizer, but in the process of using, must grasp its use deal, can not surpass autodigestion, the absorption conversion of plant and the self-purification capacity of soil in soil, as the absorption and conversion capability that exceeds soil or plant will cause rich fertile phenomenon, become benefit and cause harm, even cause that the soil pores is stopped up, soil is ventilative, water-permeable descends and harden, have a strong impact on soil quality; 4, life and production environment are polluted, mosquitos and flies through containing a large amount of pathogenic micro-organisms, parasitic ovum and multiply in the livestock and poultry fecaluria of harmless treatment and the sewage thereof, can make that the cause of disease kind increases in the environment, bacteria containing amount increases, pathogenic bacteria and parasitic a large amount of breeding occur, cause spreading of people, animal transmissible disease; Especially during zoonosis, epidemic situation can take place, to the harm of bringing on a disaster property of people, animal.
Prior art mainly contains also for the treatment process of culturing waste that handle in the field, processing and industrial treatment are several naturally, and different treatment process has different influences for breed scale, plant's environment and economic benefit.Though go through the exploratory development of many decades, most of plants of developed countries such as the U.S., Britain and Japan are now still to go back the field method as the main pattern of handling pig plant waste.Organic concentration is too high to be caused the mashed root of crop and burns seedling in order to avoid in the fertilizer, and no matter solid waste or waste water also utilize in the field, all need pass through harmless processing, kill part parasitic ovum and pathogenic micro-organism first, second reduce the harm to ambient soil.
Composting is the important channel of the innoxious and resource utilization of feces of livestock and poultry, the pig farm fecal output is huge, complicated component and instability, and rot easily, contain multiple pathogenic micro-organism, worm's ovum and heavy metal etc., adopting the high temperature nuclear reactor extensive use of chemical fertilizer to handle is comparatively economic, practical and effective at present means.The key of compost treatment organic solid castoff is how to provide good breeding growing environment for microorganism, factors such as the pH of compost material, humidity, temperature, oxygen supply all have material impact to composting efficiency, and also there is significant difference in the soil to the ability to arrange jobs of fertilizer because of fertilizer quality is different.
A kind of process for treating solid waste compost in hoggery need be provided, and technology is simple, and is easy to implement, the composting efficiency height, and the fertilizer agricultural use is worth high, and soil intake height was little to soil harm when also the field utilized.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of process for treating solid waste compost in hoggery, technology is simple, and is easy to implement, the composting efficiency height, and the fertilizer agricultural use is worth high, and also the field utilizes back soil intake high and little to soil harm.
Process for treating solid waste compost in hoggery provided by the invention comprises the steps:
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1-1.5%, granularity with the water mixing and stirring make the moisture massfraction at 71-75% and C/N than being the windrow of 25-30, the pH that regulates described windrow by acid solution or alkali lye is 7.5-8.0;
B. the windrow branch being piled floorage is 3 * 5-4 * 5m
2, volume is 10-20m
3Buttress heap and leave standstill stacking to becoming thoroughly decomposed, compost, wherein, windrow heat up and thermophilic fermentation during, turning in per 5 days once, between windrow cooling latter stage of ripening, every 7-8 days turning is once.
Further, among the step c, each buttress heap bottom level is set up in parallel inlet pipe, two adjacent inlet pipe are 20-25cm at interval, inlet pipe is along self end opening longitudinally, and the other end sealing is distributed with the radial air inlet hole of diameter 3-5mm on the inlet pipe body, two adjacent radial air inlet span 10-12cm, every inlet pipe is pressed 0.20m
3The flow of/min carries out the air inlet at intermittence, and intermittently intake method is: the windrow temperature rise period, every air inlet 8min stopped air inlet 35min again, stopped air inlet 40min behind every air inlet 10min of windrow thermophilic fermentation stage; Stop 45min behind windrow cooling every air inlet 5min of after-ripening stage.
Need to prove that the temperature rise period of the present invention is meant windrow by building the required stage when temperature reaches 50 ℃ of piling up, the thermophilic fermentation stage is meant that the windrow temperature reaches more than 50 ℃ and stage of heat-preservation fermentation; After cooling was meant thermophilic fermentation in the after-ripening stage, the windrow temperature was by 50 ℃ of stages that begin to be reduced to normal temperature.
The invention has the beneficial effects as follows: process for treating solid waste compost in hoggery of the present invention is referred from traditional compost treatment technology, take all factors into consideration moisture content, the pH value, factors such as C/N value are for the influence of fertilizer quality, specific compost operating parameters is provided, after adopting technology of the present invention that pig manure is carried out compost treatment, the fertilizer fertility is comparatively suitable, soil of the same area is higher to the intake of gained fertilizer of the present invention, alleviated under the big situation of pig manure output, need a large amount of soils to absorb the pressure of fertilizer, technology of the present invention is simple, is easy to realize the composting efficiency height, the fertilizer agricultural use is worth, and it is little to soil harm that also the field utilizes the back.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can obtain instruction from the practice of the present invention to investigating hereinafter.Target of the present invention and other advantages can realize and obtain by following specification sheets and claims.
Embodiment
The present invention will be further described below with reference to embodiment.
One, material
Take from prosperous grand pig-breeding company limited of subordinate Chongqing Qian Jiang food group of qian river, Chongqing food (group) company limited seed farm for the examination pig manure, flyash is taken from the power station, Chongqing, and wood chip is taken from Kai Xian, Chongqing wood-working factory.
Two, equipment
AOC-008 type gas blower
Three, detect index and method:
Sampling: take a sample every 5d in the composting fermentation process, adopting five-spot is sampling point with around the heap body and center, in the different depths collected specimens, the each point sampling quantity is 200g, get after mixing and take back the laboratory about 500g, get the bright sample of part and be stored in 4 ℃ of refrigerators, the 24h inner analysis finishes, all the other natural air dryings are measured nutrient;
Moisture: with material in 105 ℃ of dry 5-6h to constant weight, measure by the loss of weight method;
Organic: take by weighing oven dry and pulverize about sample 1g in crucible, place 550 ℃～600 ℃ muffle furnace calcinations complete to ashing, its loss of weight is organic content;
PH: take by weighing oven dry sample 2.5g, add the 15mL deionized water, leave standstill behind the vibration 3min treat the solid-liquid layering after, measure with pH meter;
Total N (TN%): the oven dry sample through wet method disappear boil after, measure its nitrogen content with kjeldahl apparatus;
Total C (TC%): measure with the full-automatic elemental analyser of VrioEL el-emental analyzer;
Total K:(K
2O%): measure with the 220FS atomic absorption spectrophotometer;
Total P (P
2O
5%): measure with ICP inductive coupling plasma emission spectrograph (U.S. Riemann company product);
The compost maturity decision method:
Compost maturity judge to adopt the seed germination experiment method to carry out, and concrete operations are as follows: with wheat seed and Semen Brassicae campestris is material, sample press sample water than 1: 10 at 60 ℃ of following lixiviate 3h, filtration, absorption filtrate 5mL is to being covered with in 2 filter paper culture dish.10 full rapes of each program request of each culture dish and wheat seed, repeat 3 times 25 ℃ cultivate down 36h, survey percentage of germination, percentage of germination is 80% when above, the judgement compost maturity.
See Table 1 for examination material basic physical and chemical and heavy metal content;
Table 1
Embodiment one:
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1%, granularity with the water mixing and stirring make the moisture massfraction 71%, C/N than be 25, pH is 7.5 windrow, pH regulator is by adding acid solution (example hydrochloric acid) or alkali lye (as the sodium hydroxide solution) realization after the dilution;
B. the windrow branch being piled floorage is 3 * 5m
2, volume is 10-15m
3Buttress heap and leave standstill stacking to becoming thoroughly decomposed, compost, windrow heat up and thermophilic fermentation during, turning in per 5 days once, between windrow cooling latter stage of ripening, turning in per 8 days is once got compost and is weighed, analyzes.
Wherein, adopt thermometer to measure and the record compost temperature noon every day, as seen, build heap and begin after back 1 day to heat up, the stockpile temperature reaches 37 ℃ after 2 days; Rose in the 4th day to the 19th day, the windrow temperature is all more than 45 ℃, the windrow temperature reached 50 ℃ in the 6th day, temperature maintenance 12 days more than 50 ℃ wherein, the windrow top temperature reaches 53 ℃, when the 6th day, the 11st day, the 16th day, the 26th day and turning in the 34th day, the same day, the temperature of windrow slightly descended, but turning after second day temperature go up immediately; The windrow temperature descended naturally in the 18th day, illustrated that windrow begins to enter the stage of becoming thoroughly decomposed at this moment, and the C/N of the 41st day windrow is to being reduced to 20: 1.
Embodiment two
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1.5%, granularity with the water mixing and stirring make the moisture massfraction 75%, C/N than be 30, pH is 8.0 windrow, pH regulator is by adding acid solution (example hydrochloric acid) or alkali lye (as the sodium hydroxide solution) realization after the dilution;
B. the windrow branch being piled floorage is 4 * 5m
2, volume is 16-20m
3Buttress heap and leave standstill stacking, each buttress heap bottom level is set up in parallel inlet pipe, two adjacent inlet pipe are 20cm at interval, inlet pipe is along self end opening longitudinally, the other end sealing, distribution radial air inlet hole on the inlet pipe body, two adjacent radial air inlet span 10-12cm press 0.20m by every inlet pipe of AOC-008 type gas blower
3The ventilation of/min is carried out the air inlet at intermittence, and intermittently intake method is: the windrow temperature rise period, every air inlet 8min stopped air inlet 35min again, stopped air inlet 40min behind every air inlet 10min of windrow thermophilic fermentation stage; Stop 45min behind windrow cooling every air inlet 5min of after-ripening stage, during windrow intensification and the thermophilic fermentation, turning in per 5 days once, windrow was lowered the temperature between latter stage of ripening, turning in per 7 days is once measured the temperature of compost every day, treats to get after windrow becomes thoroughly decomposed the gained compost and weighs, analyzes.
Wherein, adopt thermometer to measure and the record compost temperature noon every day, build heap back 5h and begin to heat up, the stockpile temperature reaches 40 ℃ after 2 days; Rose in the 3rd day to the 24th day, the windrow temperature is all more than 50 ℃, the windrow temperature reached 55 ℃ in the 5th day, temperature maintenance 16 days more than 55 ℃ wherein, and the windrow top temperature reaches 66 ℃, the windrow temperature descends naturally after the 24th day, illustrate that windrow begins to enter the stage of becoming thoroughly decomposed at this moment, the C/N of the 36th day windrow is to being reduced to 20: 1, during turning in the 6th day, the 11st day, the 16th day, the 21st day, the 31st day, the same day, the temperature of windrow slightly descended, but turning after second day temperature go up immediately.
Embodiment three
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1.3%, granularity with the water mixing and stirring make the moisture massfraction 73%, C/N than be 28, pH is 8.0 windrow, pH regulator is by adding acid solution (example hydrochloric acid) or alkali lye (as the sodium hydroxide solution) realization after the dilution;
B. the windrow branch being piled floorage is 3.5 * 5m
2, volume is 16-20m
3Buttress heap and leave standstill stacking, each buttress heap bottom level is set up in parallel inlet pipe, two adjacent inlet pipe are 25cm at interval, inlet pipe is along self end opening longitudinally, the other end sealing, distribution radial air inlet hole on the inlet pipe body, two adjacent radial air inlet span 10-12cm press 0.20m by every inlet pipe of AOC-008 type gas blower
3The ventilation of/min is carried out the air inlet at intermittence, and intermittently intake method is: the windrow temperature rise period, every air inlet 8min stopped air inlet 35min again, stopped air inlet 40min behind every air inlet 10min of windrow thermophilic fermentation stage; Stop 45min behind windrow cooling every air inlet 5min of after-ripening stage, during windrow intensification and the thermophilic fermentation, turning in per 5 days once, windrow was lowered the temperature between latter stage of ripening, and turning in per 7 days is once measured the temperature of compost every day, after treating that windrow becomes thoroughly decomposed, get compost and weigh, analyze.
Wherein, adopt thermometer to measure and the record compost temperature noon every day, build heap back 8h and begin to heat up, the stockpile temperature reaches 40 ℃ after 3 days; Rose in the 4th day to the 23rd day, the windrow temperature is all more than 50 ℃, the windrow temperature reached 55 ℃ in the 5th day, temperature maintenance 15 days more than 55 ℃ wherein, the windrow top temperature reaches 64 ℃, and the windrow temperature descends naturally after the 23rd day, the C/N of the 37th day windrow is to being reduced to 20: 1, during turning in the 6th day, the 11st day, the 16th day, the 21st day, the 30th day, the same day, the temperature of windrow slightly descended, but turning after second day temperature go up immediately.
Embodiment four
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1.0%, granularity with the water mixing and stirring make the moisture massfraction 75%, C/N than be 30, pH is 7.5 windrow, pH regulator is by adding acid solution (example hydrochloric acid) or alkali lye (as the sodium hydroxide solution) realization after the dilution;
B. the windrow branch being piled floorage is 4 * 5m
2, volume is 10-15m
3Buttress heap and leave standstill stacking, each buttress heap bottom level is set up in parallel inlet pipe, two adjacent inlet pipe are 22cm at interval, inlet pipe is along self end opening longitudinally, the other end sealing, distribution radial air inlet hole on the inlet pipe body, two adjacent radial air inlet span 10-12cm press 0.20m by AOC-008 type gas blower
3The ventilation of/min is carried out the air inlet at intermittence, and intermittently intake method is: the windrow temperature rise period, every air inlet 8min stopped air inlet 35min again, stopped air inlet 40min behind every air inlet 10min of windrow thermophilic fermentation stage; Stop 45min behind windrow cooling every air inlet 5min of after-ripening stage, during windrow intensification and the thermophilic fermentation, turning in per 5 days once, windrow was lowered the temperature between latter stage of ripening, and turning in per 8 days is once measured the temperature of compost every day, after treating that windrow becomes thoroughly decomposed, get compost and weigh, analyze.
Adopt thermometer to measure and the record compost temperature noon every day, build heap back 7h and begin to heat up, the stockpile temperature reaches 40 ℃ after 3 days; Rose in the 4th day to the 25th day, the windrow temperature is all more than 50 ℃, the windrow temperature reached 55 ℃ in the 5th day, temperature maintenance 16 days more than 55 ℃ wherein, the windrow top temperature reaches 65 ℃, and the windrow temperature descends naturally after the 25th day, the C/N of the 36th day windrow is to being reduced to 20: 1, during turning in the 6th day, the 11st day, the 16th day, the 21st day, the 30th day, the same day, the temperature of windrow slightly descended, but turning after second day temperature go up immediately.
Four, interpretation of result:
4.1 temperature variation in the composting process
The temperature effect microbial activities, further influence organism rate of decomposition and humification process, compost comprises intensification, thermophilic fermentation and cooling after-ripening stage, decomposition organic in the windrow is mainly carried out at hot stage, and the temperature of hot stage and soaking time can influence microbial activities, organic matter decomposition speed and worm's ovum and kill pathogenic bacteria effect.Studies confirm that, the windrow temperature continues 3d and reaches more than 55 ℃, can effectively kill pathogenic bacterium, by above each embodiment temperature variation, each embodiment windrow all can be in continuing at least 3 days more than 55 ℃, satisfy the condition of effectively killing pathogenic bacteria and disease worm's ovum, meet feces of livestock and poultry harmless treatment requirement.Simultaneously, among each embodiment,, improved organic carbon content,, and then made the windrow fermentation can obtain higher leavening temperature for aerobic microbiological provides better vegetative activity environment because of in windrow, adding wood chip.
4.2 forced ventilation is to the influence of compost fermentation effect
Oxygen directly influences microbial growth activity in the compost, anaerobic reaction easily takes place and produces reducing substances such as hydrogen sulfide and small molecular organic acid etc. in windrow when oxygen supply is not enough, foul smell pollutes surrounding environment and plant-growth is produced toxic action, usually adopt turning or forced ventilation to ensure that microorganism obtains to satisfy normal growth active oxygen in the windrow, but windrow again can be because of dehydration too much produces the mummification effect when too high or forced ventilation amount was excessive when the turning frequency, caused the microorganism growth activity to weaken even stopped; The present invention studies confirm that, when adopting the nature composting fermentation technology to carry out the swine excrement compost treatment, during windrow intensification and the thermophilic fermentation, turning in per 5 days once, windrow was lowered the temperature between latter stage of ripening, every 7-8 days turning once can better ensure microorganism growth activity in the windrow, is more conducive to aerobic compostization and carries out; Investigate the temperature variation in each embodiment composting process, as can be known, by draft type provided by the invention windrow is carried out forced ventilation, the temperature of windrow thermophilic fermentation is higher, the high temperature sustained period is longer, total composting time effectively shortens, illustrate that described draft type is in better guarantee oxygen feed rate, can avoid taking away the heat of more windrow, ensure high-temperature duration, improve the efficient of composting, adopt the purpose of intermittent type ventilation to be to avoid causing the windrow moisture loss inhomogeneous and produce layering, the effectively uniform distribution of control heap body moisture.
4.3 pH changes in the composting process
In the composting process, the pH value changes with variation of temperature in time, and the general optimum pH value of microorganism is neutrality or weakly alkaline, and the pH value is too high or too low all can to make the composting processing meet difficulty, and each implements to record after compost is taken a sample at every turn pH value such as table 1:
Table 1
| Sample time | The 5th day | The 10th day | The 15th day | The 20th day | The 25th day | The 30th day | After compost becomes thoroughly decomposed fully |
| Embodiment 1 | 7.1 | 8.0 | 8.2 | 8.3 | 8.1 | 8.0 | 7.8 |
| Embodiment 2 | 7.4 | 8.6 | 8.8 | 8.7 | 8.6 | 8.3 | 8.2 |
| Embodiment 3 | 7.5 | 8.5 | 8.7 | 8.8 | 8.6 | 8.4 | 8.3 |
| Embodiment 4 | 7.0 | 8.1 | 8.3 | 8.3 | 8.2 | 8.0 | 7.8 |
As can be seen from the above table: in the fermenting process, the pH value of the 5th day windrow all descends to some extent, raises after the 10th day, between the 15th day to the 25th day, windrow pH is higher, and pH falls after rise after the 25th day, in the whole process, windrow pH all can keep the slight alkalinity state, suitable microorganism growth activity.
4.4 change of soil water content in the composting process
The windrow water content is to influence one of microorganism active and compost key of success sexual factor.Per 5 days sampling and measuring water ratio of each embodiment windrow are changed result such as table 2:
Table 2
| Sample time | Build heap | The 5th day | The 10th day | The 15th day | The 20th day | The 25th day | The 30th day | After compost becomes thoroughly decomposed fully |
| Embodiment 1 | 71％ | 68％ | 62％ | 58％ | 52％ | 43％ | 40％ | 37％ |
| Embodiment 2 | 75％ | 71％ | 62％ | 54％ | 48％ | 41％ | 38％ | 36％ |
| Embodiment 3 | 73％ | 69％ | 64％ | 56％ | 50％ | 43％ | 39％ | 37％ |
| Embodiment 4 | 75％ | 71％ | 65％ | 56％ | 49％ | 43％ | 40％ | 38％ |
Analytical table 2 data, as can be known, at the compost initial stage, microbial activities is frequent, discharge a large amount of heats during organic matter decomposition, moisture evaporates, during compost 10-25 days, the water content lowering speed is very fast, and after becoming thoroughly decomposed fully to compost, the compost water ratio that each embodiment handles is between 36%-38%.
4.5 organic content changes in the compost
Table 3 is in each embodiment windrow composting process, and organic content changes (by percentage to the quality):
Table 3
| Sample time | Build heap | The 5th day | The 10th day | The 15th day | The 20th day | The 25th day | The 30th day | After compost becomes thoroughly decomposed fully |
| Embodiment 1 | 18.1％ | 17.6％ | 16.5％ | 15.4％ | 14.1％ | 13.8％ | 13.1％ | 12.1％ |
| Embodiment 2 | 17.9％ | 17.3％ | 16.1％ | 15.2％ | 13.9％ | 13.2％ | 12.7％ | 114％ |
| Embodiment 3 | 18.0％ | 17.4％ | 16.3％ | 14.9％ | 13.6％ | 12.8％ | 11.5％ | 10.6％ |
| Embodiment 4 | 18.2％ | 17.3％ | 16.1％ | 15.1％ | 14.0％ | 12.9％ | 11.3％ | 10.8％ |
By table 4 data as can be known, adopt composting process of the present invention, after compost becomes thoroughly decomposed fully, organic content lower (as embodiment 2 to embodiment 4 data as seen) illustrates that composting efficiency is higher, and the organic matter degradation effect is better, behind the compost maturity, under the low situation of organic content, soil is to the corresponding raising of compost intake, thereby alleviates the pressure of a large amount of soils demand.
4.6 behind the compost maturity, full nitrogen, full potassium and content of tatal phosphorus change as table 4:
Table 4
As seen, after each embodiment compost treatment, total nitrogen content has comparatively significantly decline from table 4, and the content of total P, total K is then less.
In sum, after adopting technology of the present invention that pig manure is carried out compost treatment, the fertilizer fertility is comparatively suitable, and soil of the same area is higher to the intake of gained fertilizer of the present invention, has alleviated under the big situation of pig manure output, need a large amount of soils to absorb the pressure of fertilizer, technology of the present invention is simple, is easy to realize the composting efficiency height, the fertilizer agricultural use is worth, and it is little to soil harm that also the field utilizes the back.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. a process for treating solid waste compost in hoggery is characterized in that: comprise the steps:
A. be 100-180 purpose wood fragments bits with fresh pig manure, the flyash that accounts for fresh pig manure weight 1-1.5%, granularity with the water mixing and stirring make the moisture massfraction at 71-75% and C/N than being the windrow of 25-30, the pH that regulates described windrow by acid solution or alkali lye is 7.5-8.0;
B. the windrow branch being piled floorage is 3 * 5-4 * 5m
2, volume is 10-20m
3Buttress heap and leave standstill stacking to becoming thoroughly decomposed, compost, wherein, windrow heat up and the turning of per 5 days of thermophilic fermentation stage once, windrow cooling every 7-8 of after-ripening stage days turning is once.
2. process for treating solid waste compost in hoggery according to claim 1, it is characterized in that: among the step c, each buttress heap bottom level is set up in parallel inlet pipe, two adjacent inlet pipe are 20-25cm at interval, inlet pipe is along self end opening longitudinally, and the other end sealing is distributed with the radial air inlet hole of diameter 3-5mm on the inlet pipe body, two adjacent radial air inlet span 10-12cm, every inlet pipe is pressed 0.20m
3The flow of/min carries out the air inlet at intermittence, and intermittently intake method is: the windrow temperature rise period, every air inlet 8min stopped air inlet 35min again, stopped air inlet 40min behind every air inlet 10min of windrow thermophilic fermentation stage; Stop 45min behind windrow cooling every air inlet 5min of after-ripening stage.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044094A (en) * | 2012-12-27 | 2013-04-17 | 昆明学院 | Microorganism active phosphate fertilizer prepared from water hyacinth residue and composite microorganism strain |
| CN103570392A (en) * | 2013-10-29 | 2014-02-12 | 太仓市双凤勤之立生态养殖场 | Composting treatment method for waste pig raising fermentation bed |
| CN103964942A (en) * | 2014-04-11 | 2014-08-06 | 牧原食品股份有限公司 | Method for production of organic fertilizer by utilizing pig manure |
| CN106187390A (en) * | 2016-07-25 | 2016-12-07 | 陈翠群 | A kind of base fertilizer improving wheat yield |
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| CN1368487A (en) * | 2001-02-01 | 2002-09-11 | 张显军 | Formula and process for preparing efficient biological organic (or semi-organic) fertilizer |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN101024591A (en) * | 2007-02-10 | 2007-08-29 | 江西省农业科学院土壤肥料与资源环境研究所 | Method for producing organic fertilizer using microbe bacteria to quick fer menting pig's feces |
| CN101284747A (en) * | 2008-05-09 | 2008-10-15 | 广东省农业科学院土壤肥料研究所 | Organic-inorganic slow-released fertilizer and method for preparing same |
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| CN1368487A (en) * | 2001-02-01 | 2002-09-11 | 张显军 | Formula and process for preparing efficient biological organic (or semi-organic) fertilizer |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN101024591A (en) * | 2007-02-10 | 2007-08-29 | 江西省农业科学院土壤肥料与资源环境研究所 | Method for producing organic fertilizer using microbe bacteria to quick fer menting pig's feces |
| CN101284747A (en) * | 2008-05-09 | 2008-10-15 | 广东省农业科学院土壤肥料研究所 | Organic-inorganic slow-released fertilizer and method for preparing same |
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| 《畜牧与兽医》 20050731 陈志宇等 猪粪好氧堆肥的影响因素 正文第53页左栏第19行-第54页左栏倒数第1行 1 , 第7期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044094A (en) * | 2012-12-27 | 2013-04-17 | 昆明学院 | Microorganism active phosphate fertilizer prepared from water hyacinth residue and composite microorganism strain |
| CN103570392A (en) * | 2013-10-29 | 2014-02-12 | 太仓市双凤勤之立生态养殖场 | Composting treatment method for waste pig raising fermentation bed |
| CN103964942A (en) * | 2014-04-11 | 2014-08-06 | 牧原食品股份有限公司 | Method for production of organic fertilizer by utilizing pig manure |
| CN106187390A (en) * | 2016-07-25 | 2016-12-07 | 陈翠群 | A kind of base fertilizer improving wheat yield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913923B (en) | 2013-01-23 |
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