CN102557264B - Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries - Google Patents

Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries Download PDF

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Publication number
CN102557264B
CN102557264B CN201210011270.3A CN201210011270A CN102557264B CN 102557264 B CN102557264 B CN 102557264B CN 201210011270 A CN201210011270 A CN 201210011270A CN 102557264 B CN102557264 B CN 102557264B
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livestock
ficus tikoua
wet land
poultry cultivation
application
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CN201210011270.3A
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CN102557264A (en
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夏红霞
朱启红
李强
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重庆文理学院
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

The invention discloses application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries. The ficus tikoua is planted in an environment polluted by the livestock and poultry cultivation biogas slurries, the absorption effect of the ficus tikoua on pollution matters such as NH4+-N, TN, TP, CODcr in the livestock and poultry cultivation biogas slurries is sufficiently used, the ficus tikoua has dogged life force, can be directly planted, needs no special management, has the perennial characteristic, and can perpetually solve pollution problems of the livestock and poultry cultivation biogas slurries. The application has the advantages of being small in investment, good in effect, simple in operation, easy to apply and the like, and can guarantee winter purification effect of a wet land system. Harvested ficus tikoua can be used for medicines, the major functions of the ficus tikoua is chronic bronchitis, rheumatism physique ache, diarrhea, dysentery, mammitis, edema, abnormal menstruation, postpartum animal spirits ache, venomous snake bite and the like. The ficus tikoua is used for processing waste water, environmental protection and economic construction are combined, an operation mode of depending on government investment all the year of the traditional ecological engineering is expected to change, and the application of the ficus tikoua has profound and lasting significants.

Description

Application in ground fruit purifying livestock breeding biogas slurry
Technical field
The present invention relates to livestock breeding biogas slurry process field, particularly a kind of application of constructed wetland plant purifying livestock breeding biogas slurry.
Background technology
In recent years; along with the fast development of mass-producing, intensive livestock and poultry breeding industry; the environmental pollution that livestock culture industry is brought is day by day serious, and it all causes great threat to rural potable water safety, irrigation water, soil, agricultural-food and air quality and Rural Human Settlements.Anaerobic digestion techniques, being widely used aspect the bioenergy exploitation of livestock breeding wastewater and Pollution abatement, can suppress the primary pollution of livestock breeding wastewater effectively; But the natural pond liquid of many large-scale cultivations field is outer row directly, has caused serious secondary pollution, and the ecological purification processing of livestock breeding biogas slurry is the only way of the thorough harmless treatment of aquaculture wastewater and recycling.
Just current China's aquaculture natural pond liquid water quality situation, simple physics, chemistry or the bioremediation of adopting is all difficult to reach emission request, need to adopt the technique that combines of multiple treatment process, but cause that waste water treatment process technical requirements is high, investment and working cost too high, be difficult to promote the use of.Artificial Wetland Techniques can make up the limitation that existing aquaculture economic capability is limited, lack the technician who has certain operation and level of management just, is especially applicable to being located in the plant of Rural areas.
Artificial swamp is a kind of novel wastewater processing technology, be built by artificial optimization's simulated wetland system there is the comprehensive degradation function of the ecosystem, and the artificial treatment system of supervision and control.It is the wastewater treatment function for giving full play to Wetlands ecosystems, improves wastewater purifying efficiency and constructing, and its sewage purification function is that natural wet land system is incomparable.It is maintaining the eubiosis, and there is its original effect protection species diversity aspect.It is to utilize physics, chemistry and biological triple synergies in the ecosystem to realize the high-efficient purification to sewage, overcome the shortcoming that uses chemical process easily to cause secondary pollution and physical method to cure the symptoms, not the disease in sewage disposal, there is the advantages such as investment is little, treatment effect good, running maintenance is convenient, and there is certain ecoscape effect.Artificial Wetland Techniques, because its unique advantage obtains long term growth, especially demonstrates huge development potentiality aspect wastewater treatment, has become one of focus of Recent study.Up to the present, for Treatment Technology of Constructed Wetland have plants such as reed, Caulis Miscanthis floriduli, paddy rice, Rhizome of Grass leaf Sweelflag, calamus, Herba Eichhorniae, parasol grass, Rush, swamp cabbage, Wildcelery Herb, Canna generalis Bailey, obtained good experiment effect.
But the constructed wetland plant that is used in processing livestock breeding biogas slurry is very rare.Therefore, develop the plant variety resource that can be used for processing livestock breeding biogas slurry, just seem and be necessary very much with the livestock breeding biogas slurry processing that adapts to different areas, different quality.Meanwhile, the most of tolerance to cold of existing constructed wetland plant is poor, and winter is easily dead, can not ensure the decontamination effect improving under low temperature environment.Plant after death enters water body, easily causes secondary pollution, affects the decontamination effect improving of wet land system.And the plant economic worth of research is lower, recycle cost higher, economic benefit is not obvious.
Summary of the invention
The object of the invention is to: can be used for for above-mentioned existing Artificial Wetland Techniques that floristics inadequate resource, the economic worth of purifying livestock breeding biogas slurry is low, tolerance to cold is poor, winter is easily dead, cannot ensure the problem of low temperature environment decontamination effect improving, a kind of new plant resource that can be used for purifying livestock breeding biogas slurry is provided.Utilize the ornamental plant that economic worth is higher to purify waste water of livestock poultry; environment protection is combined with landscape construction; embody the idea of sustainable development that sewage disposal, restoration of the ecosystem and landscape construction are taken into account mutually with economic benefit; have the advantages that theoretical investigation combines with applied research, this provides novel thinking and theoretical foundation for countryside sewage treating application in practice.This changes by being expected to the operating mode that Traditional Ecological engineering month after month relies on government to inject capital into throughout the year, has far reaching significance.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
Planting site fruit in artificial swamp, utilizes and builds wet land system purifying livestock breeding biogas slurry.
Ground fruit (Ficus tikoua Bur.): another name: wild country melon, Man Diqing, Man Dixiang, loquat, Stem and leaf of Digua Fig, courage purple, Fruit of Digua Fig, courage purple, white slope tiger, Chinese bush cherry fruit, Caulis et Folium fici Tikouae etc.The perennial bejuco that crawls of Moraceae Ficus.Stem brown, memorandum is expanded, the raw elongated adventive root that contacts to earth, the hard papery of leaf, the shape of falling ovum ellipse, be about 1.6-6 centimetres, wide approximately 1-4 centimetres, the anxious point of tip, the round or shallow heart type of base portion, there is thin or wavy sawtooth at edge, and tool three goes out arteries and veins, and 3-4 pairs of lateral veins, above by undercoat; The long 1-2 of the petiole centimetre of short stalk of receptacle of inflorescence tool, a small bundle of straw, etc. for silkworms to spin cocoons on is born on the brachyplast without leaf, is embedded in soil ball-type or ossphere type, diameter 4-15 millimeter, red-purple when ripe (edible); The raw bract 3 of base; Male flower is born in the oral area of holder, tapel 2-6, and stamen 1-3 female flower is born in another receptacle of inflorescence.
Wild country melon complete stool has milk, reaches more than 10 meters, crawl ground and give birth to, and the easily raw palpus shape adventive root that contacts to earth, is similar to huge centipede, therefore claim again crawl DIWUGONG.Branch is many, and growth is fast, and the power of seeking connections with is strong, and the branch of cuttage in spring, to the ground that can cover then approximately 2 square metres winter.The climing softness of stem of wild country melon is and tough and tensile, and the climing pulling force that bears 30 ~ 40 kilograms of annual stem, is the good raw material of braiding basket basket and rattan handicraft.Leaf is long 2 ~ 6 centimetres, wide 2 ~ 4 centimetres, emerald green, does not fall through the winter, is the delicious food for winter that good feed, especially rabbit, ocean, the goose etc. of phytophagous animal looks.Flower unisexuality, clusters or is singly born in axil or bifurcation.Wild country melon and fruit is real spherical, 1.5 ~ 2.5 centimetres of diameters, and young fruit is dark green, ripe incarnadine, sweet perfumes are diffused all around, fragrant and sweet as honey.
[pharmaceutical use] complete stool is medicinal.Cure mainly chronic bronchitis, rheumatism arthralgia and myalgia, diarrhoea, dysentery, mazoitis, oedema, menoxenia, puerperal abdominalgia with blood stasis, have blood in stool, nose is bleeding, scrofula, synthetism, wound, knife wound, mad dog bite, carbuncle swells, impetigo herpetiformis, venomous snake bite.
Contriver finds in long-term a large amount of experiment journey, and ground fruit can be served as a kind of novel constructed wetland plant, can effectively reduce the ammonia nitrogen (NH in livestock breeding biogas slurry 4 +-N), total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (COD cr) etc. pollutent.Based on above-mentioned discovery, ground fruit is planted to the processing for livestock breeding biogas slurry in artificial swamp.Carry out monitoring analysis by the wet land system influent waste water and the effluent quality thereof that are regularly implanted with ground fruit to planting, fully confirm that ground fruit is to the ammonia nitrogen (NH in waste water 4 +-N), total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (COD cr) etc. there is higher detergent power, can be used for the purifying treatment of livestock breeding biogas slurry.And ground fruit vitality is very vigorous, easily survives, extremely low temperature resistant, and be perennial root herbaceous plant, do not need annual plantation, in whole process of growth, do not need special management.
In sum, the invention has the beneficial effects as follows:
1, the present invention finds that through long-term great many of experiments ground fruit is to the ammonia nitrogen (NH in livestock breeding biogas slurry 4 +-N), total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) (COD cr) etc. pollution substance there is significant decontamination effect improving.Therefore, passed through Artificial Wetland Techniques purifying livestock breeding biogas slurry, the NH in absorption and accumulation waste water 4 +-N, TN, TP, COD crdeng pollution substance, thereby reduce the NH in waste water 4 +-N, TN, TP, COD crdeng pollution substance content; In the time that it grows to certain biomass, by hand harvest, just can reduce NH in waste water 4 +-N, TN, TP, COD crdeng pollutant load, realize the object of purifying liquid waste.
2, due to the physiological property of ground fruit itself, easily survive, cold-resistant, in indomitable vitality, sub-zero zero temperature is just withered in the winter time, and is perennial plant, does not need annual plantation, in whole process of growth, do not need to carry out special management, thereby running cost is low, effective, operation is simple.Meanwhile, also enriched Artificial Wetland Techniques plant storehouse, the deep development of processing eutrophication water for Artificial Wetland Techniques brings new progress and development space.
3, through periodical reaping, can realize NH in waste water 4 +-N, TN, TP, COD crdeng the purification of pollutent, prevent from that its dry branches and fallen leaves from falling in water, to form secondary pollution.The ground fruit of harvesting is also pharmaceutically acceptable, cures mainly chronic bronchitis, rheumatism arthralgia and myalgia, diarrhoea, dysentery, mazoitis, oedema, menoxenia, puerperal abdominalgia with blood stasis, has blood in stool, nose is bleeding, scrofula, synthetism, wound, knife wound, mad dog bite, carbuncle swells, impetigo herpetiformis, venomous snake bite.
4, fruit not only has better purifying of the hypertrophic water system effect, and has higher pharmaceutical use.Compared with prior art, no matter the present invention is at running cost, Operation and Maintenance, treatment effect, or environmental benefit, economic benefit etc. all have obvious advantage.
Brief description of the drawings
Fig. 1 is that embodiment 1 ground fruit is processed NH in livestock breeding biogas slurry 4 +-N effect schematic diagram
Fig. 2 is that embodiment 1 ground fruit is processed TN effect schematic diagram in livestock breeding biogas slurry
Fig. 3 is that embodiment 1 ground fruit is processed TP effect schematic diagram in livestock breeding biogas slurry
Fig. 4 is that embodiment 1 ground fruit is processed COD in livestock breeding biogas slurry creffect schematic diagram
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Specific embodiment described herein only, in order to explain the present invention, is not limited to the present invention.
Embodiment 1
The present embodiment is the application that ground fruit is processed livestock breeding biogas slurry, specifically applies way as follows:
1, the structure of artificial wet land system
Wet land system is of a size of 100cm × 45cm × 75cm(L × W × H); Comprise the water distributor that is arranged on wet land system top, wet land system bottom is water leg and water outlet.By supreme gravel bed, slag layer and the sandy soils laid successively of water leg.Described constructed wetland bed body characteristics is: wetland bed body inside is made up of wetland filling substrate and oscillation, and a water leg is arranged at wet land system bottom, collects through wet land system waste water after treatment.
In order to strengthen wet land system interal supplying oxygen ability, thus the decontamination effect improving of raising wastewater through organic matter, therefore at the inner oscillation of filling of wet land system, wet land system inside is supported automatically by the hole of oscillation.
In order further to improve the detergent power of wet land system of the present invention, above-mentioned wet land system filling substrate particle diameter and filling thickness all carried out artificial screening.In wetland, decibel is filled the gravel bed that the thick particle diameter of 15cm is 10~20mm, and the thick particle diameter of 20cm is the sandy soils that 1~10mm slag layer and thickness are 15cm.
In order further to improve the detergent power of wet land system of the present invention, this wetland water purification mode adopts intermittent loading, utilizes the period of not water inlet further to supplement the inner oxygen level of wet land system, thereby improves the inner oxygen delivery capacity automatically of wet land system.
2, livestock breeding biogas slurry is processed example
This was tested in 2 days November in 2011, terminated on December 21st, 2011, taking 7 days as one treatment cycle, co-processing 5 time-of-weeks.Under state of nature, the ground fruit seedling collecting is directly planted in the topsoil of wetland, stablize 14 days with tap water.After plant to be planted is stable, process livestock breeding biogas slurry from water distributor water inlet.
Utilize artificial swamp to process in livestock breeding biogas slurry process by measuring different flooding quantitys, optimal water power standing time constructed wetlands system to NH in waste water 4 +-N, TN, TP, COD crdeng the decontamination effect improving of pollutent, to determine best flooding quantity and the optimal water power standing time of this experiment.
According to measuring result, the optimal water power standing time that ground fruit artificial wet land system is processed livestock breeding biogas slurry is 6d, and best flooding quantity calculates by following formula:
Q=Fqt/0.0365
In formula:
Q---waste water design discharge, m 3/ d;
The land area that F---artificial swamp takies, hm 2;
Q---hydraulic load, mm/d, in this test, q gets 100mm/d
T---waterpower working time, d.
0.0365---reduction factor.
As calculated, the best flooding quantity of this system is 0.74m 3therefore water inlet flow velocity is for being 0.086cm 3/ s.For further improving the automatic keeping ability of wet land system, in test, adopt intermittent loading mode.The water inlet of system 8 a.m., be 6d the interval time of at every turn intaking, and then stops into water 1d.Be to be 7d in the each run cycle, wherein the residence time of sewage in reactor is 6d, draining after 6d, and ensuing 1d reactor enters and stops the not stage.
At whole duration of test, NH when ground fruit purifying livestock breeding biogas slurry 4 +-N, TN, TP, COD crdeng the water inlet of pollution substance, go out water concentration and clearance referring to accompanying drawing 1~4.As seen from the figure, ground fruit is to NH in waste water 4 +-N, TN, TP, COD crpurification efficiency Deng pollution substance is respectively: 47.3%, 56.3%, 91.2%, 88.1%.
Visible by above-described embodiment, ground fruit is to the NH in livestock breeding biogas slurry 4 +-N, TN, TP, COD crthere is significant removal effect, can be used for the processing of livestock breeding biogas slurry.

Claims (1)

1. fruit is in the application of processing in livestock breeding biogas slurry, ground fruit is planted to purifying livestock breeding biogas slurry in automatic oxygen supply artificial wet land system, described automatic oxygen supply artificial wet land system comprises the water distributor that is arranged on described wet land system top, be arranged on water leg and the water outlet of automatic oxygen supply artificial wet land system bottom, and wetland filling substrate and the oscillation of automatic oxygen supply artificial wet land system inside; Described wetland filling substrate is the sandy soils that the supreme thick particle diameter of 15cm of laying successively of the water leg thick particle diameter of gravel bed, 20cm that is 10~20mm the slag layer that is 1~10mm and thickness are 15cm; Described automatic oxygen supply artificial wet land system is of a size of 100cm × 45cm × 75cm (L × W × H); Described water intake mode employing intermittent loading of ground fruit being planted to purifying livestock breeding biogas slurry in automatic oxygen supply artificial wet land system.
CN201210011270.3A 2012-01-13 2012-01-13 Application of ficus tikoua in purification of livestock and poultry cultivation biogas slurries CN102557264B (en)

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