CN107032838A - A kind of municipal sludge base Nutrition Soil and preparation method thereof - Google Patents
A kind of municipal sludge base Nutrition Soil and preparation method thereof Download PDFInfo
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- CN107032838A CN107032838A CN201710343243.9A CN201710343243A CN107032838A CN 107032838 A CN107032838 A CN 107032838A CN 201710343243 A CN201710343243 A CN 201710343243A CN 107032838 A CN107032838 A CN 107032838A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
- A01K67/0332—Earthworms
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/05—Treatments involving invertebrates, e.g. worms, flies or maggots
-
- 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
Abstract
The present invention discloses a kind of municipal sludge base Nutrition Soil and preparation method thereof.The Nutrition Soil banks up material by following mass percent composition, and fully banks up and be made through earthworm：Urban domestic sewage sludge 60~90%, the dry Litter-fall 2~30% of mountain ebony, the dry Litter-fall 2%~30% of a variety of millet wood, the dry Litter-fall 0~10% of dracontomelon duperreanum.The present invention combines municipal sludge, gardens Litter-fall and earthworm, scientific allocation banks up material ratio, earthworm injected volume, banks up the time and bank up environment, gained Nutrition Soil is of good quality, nutrient is complete and content is high, harmful substance contents are low, and the innoxious and recycling for municipal sludge and afforestation discarded object provides effective way.The inventive method resource utilization efficiency is high, Nutrition Soil can be directly used as nursery, garden seedling tree and flowers potting media, forest land and afforestation cultivated soil and Abandoned Land of Mine soil conditioner etc., bank up the incomplete earthworm banked up material and separated and can be used for secondary bank up.
Description
Technical field
The invention belongs to solid wastes recycling processing technology field, specifically a kind of municipal sludge base Nutrition Soil and its system
Make method.
Background technology
Municipal sludge, is primarily referred to as the solid waste produced in city domestic sewage processing procedure.City trees and shrubs wither and fall
Thing is important afforestation discarded object, is also the important composition of municipal solid wastes.As Process of Urbanization Construction and city are given birth to
The quickening that state is built, municipal sludge and afforestation discarded object are sharply increased, and cause " sludge besieged city " and " fallen leaves besieged city " phenomenon
Occur, cause the attention of country and society.The reasonable disposal of municipal sludge and afforestation discarded object be all urban development and
Hot issue urgently to be resolved hurrily during ecological construction.Traditionally, the mode master of processing municipal sludge and afforestation discarded object
Will be based on burning and fill, this had both wasted resource or had been also easy to produce environmental pollution.
Sludge is rich in organic matter and nutritional ingredient, and gardens Litter-fall is rich in cellulose, hemicellulose and lipid like material.Will
It is most simple and effective Energy Resources Service's physics and chemistry mode that both materials, which are applied to agriculture and forestry production,.However, sludge heavy-metal content is high,
Gardens Litter-fall decomposition efficiency is low, becomes the bottleneck for limiting the application of both material agriculture and forestry.Scientist also attempts to apply earthworm
Earthworm banks up technical finesse municipal sludge problem.For example, " earthworm-rice straw-sludge " of Dong Xiuhua reports banks up (Dong Xiu China earthworms
Earthworm-rice straw-sludge banks up system to sludge fertilizer efficiency and the influence Yangzhou Universitys master's degree opinion of bioavailability of heavy metals
Literary .2011), " earthworm-cow dung-sludge " of the report such as punishment U.S. swallow banks up (application number：201610656105.1, title：Processing is surplus
The method and excess sludge processing unit of remaining sludge), " earthworm-cow dung-Banana Leaf-sludge " of Liu Bo reports banks up (application number：
201010581430.9, title：The method for the sludge that earthworm disposal municipal sewage plant is produced) etc..However, these reports
Earthworm banks up processing sludge method and there are many deficiencies, is mainly reflected in：(1) efficiency is banked up low, due to sludge quality and earthworm
Earthworm habit understands not enough, and the sludge of not all is suitable for the growth of earthworm, thus it is follow-up bank up during earthworm occur a large amount of
Escape and dead；Furthermore the layering of Liu Bo reports is banked up, and is not sufficiently mixed sludge with cow dung and Banana Leaf, it is easy to occur
Due to earthworm walking quickly and keeping away into without eating sludge to sludge, so that sludge is not adequately broken, fails to reduce and bank up product
Toxicity；(2) bank up Product Safety poor, deficiency is recognized due to removing heavy metal mechanism to earthworm, so that practical application earthworm heap
Put in the pure sludge process of processing, heavy metal poor removal effect；Even have been reported that addition animal wastes auxiliary is banked up, and animal excreta
Just heavy metal and harmful microorganism content are uncontrollable, are easily caused the exacerbation of the toxicity such as Heavy Metals in Sludge；(3) product quality is banked up
Difference, sludge caking property is strong, easily air-dries caking and lumps very rigid, that has reported is banked up by adding animal wastes or stalk
Do not improve the quality of sludge, so that the Nutrition Soil quality banked up relatively glues weight, be unfavorable for growth of seedling and apply not side
Just；(4) bank up after end, be not sufficiently separated earthworm with banking up product, but earthworm is directly inactivated and is stranded in product,
This causes the harmful substances such as the heavy metal of earthworm absorption finally to be given back in product.This serious limitation employing worm banks up processing sludge
Engineering practice and popularization.
Afforestation discarded object is subjected to compost treatment or applied to soilless culture substrate, it is considered to be recycling
With the effective way of environmental protection disposal.Because traditional compost maturity is incomplete or decomposes insufficient, cause the greening of Composting
Discarded object produces poisonous and harmful substances after being manured into soil, and then suppresses plant growth.On the other hand, pure afforestation discarded object is banked up
Nutrition Soil, nutrient content is low, and quality is poor, and retaining stores fertile ability, it is impossible to meet demand of plant growth.This is also such nutrition
Soil is in actual application, it is necessary to which further addition Nutrients and vermiculite etc. carry out the important original of fertility and quality improvement
Cause.
The content of the invention
The shortcoming and deficiency existed for municipal sludge in the prior art and afforestation utilization of waste as resource, this hair
Bright primary and foremost purpose is to provide a kind of municipal sludge base Nutrition Soil.
Another object of the present invention is to provide a kind of earthworm to bank up the method for making municipal sludge base Nutrition Soil.
The characteristics of present invention combines municipal sludge, gardens Litter-fall and earthworm, scientific allocation is banked up material ratio, earthworm and thrown
High-volume, bank up the time and bank up environment, the Nutrition Soil obtained is of good quality, nutrient is complete and content is high, harmful substance contents are low,
Suitable with commercially available import peat soil effect, the innoxious and recycling for municipal sludge and afforestation discarded object is provided
Effective way.
It is still another object of the present invention to provide the application of above-mentioned municipal sludge base Nutrition Soil.
The purpose of the present invention is achieved through the following technical solutions：
A kind of municipal sludge base Nutrition Soil, banks up material, and fully bank up through earthworm system by following mass percent composition
Form：
Urban domestic sewage sludge 60~90%, mountain ebony (Bauhinia purpurea) dry Litter-fall 2~30% is yellow
Balk (Neolamarckia cadamba) dry Litter-fall 2%~30%, dracontomelon duperreanum (Dracontomelon duperreanum)
Dry Litter-fall 0~10%.
Preferably, urban domestic sewage sludge 83.3%, mountain ebony (Bauhinia purpurea) dry Litter-fall 8.3%,
A variety of millet wood (Neolamarckia cadamba) dry Litter-fall 2%~8.3%, dracontomelon duperreanum (Dracontomelon
Duperreanum) dry Litter-fall 0~6.3%.
A kind of earthworm banks up the method for making municipal sludge base Nutrition Soil, comprises the following steps：
(1) pretreatment urban domestic sewage sludge and gardens Litter-fall, improve earthworm palatability；
(2) it is covered with film and ventilation uniformly mixes urban domestic sewage sludge and gardens Litter-fall in beneath in proportion,
Material is banked up in formation, and it is 60%~85% that moisture content of material is banked up in regulation；
(3) according to quality of material, material properties and earthworm kind is banked up, calculated by calculating formula and deliver earthworm amount, and uniformly
Deliver earthworm；
(4) basis banks up quality of material, material properties, earthworm kind and earthworm injected volume, when being banked up by calculating formula calculating
Between, processing is fully banked up in progress；During banking up, manually stirred once every 7~10 days, and fitted according to moisture content of material is banked up
When keeping the skin wet；
(5) fully heap is postponed, and is separated earthworm and is banked up material, obtains banking up product：Municipal sludge base Nutrition Soil.
Described gardens Litter-fall is mountain ebony Litter-fall, a variety of millet wooden Litter-fall and dracontomelon duperreanum Litter-fall etc..
Preferably, fresh wet mud is directed to, processing is eluted and drained；For dewatered sludge, mechanical crushing is carried out
Processing；For gardens Litter-fall, drying and mechanical crushing processing are carried out；Dewatered sludge crosses 1~3mm sieves with gardens Litter-fall.
Preferably, the kind of described earthworm is Eisenia Foetida (Eisenia foetida), the remote blind earthworm of cortex
At least one of (Amynthas corticis) and grand Pheretimatschiliensis (Amynthas robustus), earthworm are with maturation
The healthy and strong earthworm of ring.
Preferably, the calculating formula of the calculating dispensing earthworm described in step (3) is：
W=[(0.1085M2+21.96M+70)×k1+(0.1707m2+ 30.81m+65) × k2] × k3,
In formula, W is to deliver earthworm fresh weight (unit for gram), and M be sludge weight (unit for kilogram), and m is Litter-fall weight
(unit for kilogram), k1 be that (fresh wet mud coefficient is 0.8 to sludge coefficient, and dehydration dewatered sludge coefficient is 1), k2 is Litter-fall system
(mountain ebony Litter-fall coefficient is 0.7 to number, and a variety of millet wood Litter-fall is 0.8, and dracontomelon duperreanum Litter-fall coefficient is 1, mixes Litter-fall coefficient
For 0.8), k3 is that (it is 0.4 that Eisenia Foetida delivers coefficient to earthworm dispensing coefficient, and it is 0.57 that the remote blind earthworm of cortex, which delivers coefficient, grand
It is 1.2 that Pheretimatschiliensis, which delivers coefficient, and both or three kinds of earthworm mixing deliver coefficient for 0.73)；Result of calculation enters a round numbers.
Preferably, the calculating described in step (4) banks up the calculating formula of time and is：
T=[13.886ln (W) -21.11 × k],
In formula, T is banks up the time (unit is day), and W be to deliver earthworm fresh weight (unit for gram), and k is earthworm feed coefficient
(Eisenia Foetida feed coefficient is 0.4, and the remote blind earthworm feed coefficient of cortex is 0.76, and grand Pheretimatschiliensis feed coefficient is 1.45, two
Person or three kinds of earthworms are mixed into eclipse series number for 0.88)；Result of calculation enters a round numbers.
Preferably, early stage is banked up, moisture content of material control is banked up 70%~85%；Bank up the later stage (last 7 banked up
My god), moisture content of material control is banked up 60%~65%.
It is highly preferred that banking up early stage, moisture content of material control is banked up 80%；(last 7 days banked up) are banked up the later stage,
Moisture content of material control is banked up 65%.
Preferably, the material of banking up after the completion of banking up is transferred to separation platform, by separation platform by earthworm with banking up
Feed separation, banks up material to bank up product Nutrition Soil, not the earthworm through separation platform and heap glove through separation platform
Material, which is reclaimed, is used for secondary bank up.
Preferably, separation platform is horizontal vibration platform, and Platform Vibration frequency is 60~140rpm；To be stainless in the middle of platform
Steel screen cloth, mesh is 2mm~5mm.
Described municipal sludge base Nutrition Soil, can be applied to make seedling medium, garden seedling tree and flowers potting media, forest land
With afforestation cultivated soil and Abandoned Land of Mine soil conditioner etc..
The present invention has the following advantages and effect relative to prior art：
(1) Nutrients such as the inventive method combination municipal sludge heavy texture, nitrogen and content of beary metal are high, and gardens are withered
The characteristics of junk carbon content height and earthworm decomposable asymmetric choice net cellulose, enriching heavy metal, screening Nutrition Soil of maximizing favourable factors and minimizing unfavourable ones banks up raw material
Formula, builds " municipal sludge-gardens Litter-fall-earthworm " and combines the system of banking up, comprehensive to realize that municipal sludge and afforestation are useless
The innoxious and recycling treatment of gurry, is that solution " sludge besieged city " and the tired of " fallen leaves besieged city " provide theory and technology support.
(2) earthworm that the inventive method is used banks up method bioremediation, without adding other chemical substances again, consumption
The energy is few, compared with using technologies such as high temperature passivation and chemical stabilizers come stabilized sludge heavy metal, more environmentally-friendly, economic and height
Effect, and produced without secondary pollution material.
(3) earthworm that the inventive method is used banks up method, and earthworm feeding habits are big, and culture is convenient, compared to microbe fermentation method,
Efficiency high, to bank up the time short, easy to operate；And microbe fermentation method is also easy to produce secondary pollution gas.
(4) Nutrition Soil acquired in the inventive method, the earthworm such as addition animal wastes, stalk reported with forefathers is banked up,
And the Nutrition Soil that microbe fermentation method is obtained is compared, quality is more loose, and nutrient element is complete and content is high, and heavy metal contains
The low and stability of amount is good, and organic pollution and harmful microorganism are few.
(5) municipal sludge and afforestation discarded object needed for the inventive method, belong to urban development byproduct, source
In city；And animal wastes and stalk etc., belong to agricultural development byproduct, be mainly derived from rural area, and itself has certain agriculture
With value；Afforestation discarded object is compared with animal wastes and stalk etc., and afforestation discarded object procurement cost is more cheap.
(6) the inventive method resource utilization efficiency is high, and seedling medium, gardens seedling can be directly used as by banking up product Nutrition Soil
Wood and flowers potting media, forest land and afforestation cultivated soil and Abandoned Land of Mine soil conditioner etc., are banked up not exclusively
Bank up material and the earthworm separated can be used for secondary bank up.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Embodiment 1
A kind of municipal sludge base Nutrition Soil, by 5 kilograms of dewatered sludge (accounting for gross mass 83.3%), and the wooden Litter leaf of a variety of millet
With each 0.5 kilogram of (accounting for gross mass 8.3% respectively) constitutive material of mountain ebony Litter leaf, bank up and form through earthworm.Making step
It is as follows：
(1) crushing/dewatering dewatered sludge (city domestic sewage treatment plant bed mud, water content 50%), a variety of millet are distinguished with pulverizer
Wooden Litter leaf (drying) and mountain ebony Litter leaf (drying), cross 2mm sieves standby；
(2) take 5 kilograms of the dehydration dewatered sludge (accounting for gross mass 83.3%) pulverized and sieved, and the wooden Litter leaf of a variety of millet and
Mountain ebony Litter leaf is each 0.5 kilogram (accounting for gross mass 8.3% respectively), and film is covered with and ventilation is uniformly mixed in beneath；And
It is 80% to adjust its moisture；
(3) from dispensing Eisenia Foetida；According to calculating formula：W=[(0.1085M2+21.96M+70)×k1+
(0.1707m2+ 30.81m+65) × k2] × k3, it is 100 grams to calculate and deliver earthworm amount；Weighing 100 grams has ripe ring, stalwartness
Eisenia Foetida, be uniformly invested in and bank up in material；
(4) according to calculating formula T=[13.886ln (W) -21.11 × k], calculating banked up the time for 56 days；During banking up, often
Manually stirred once every 10 days, and material moisture is banked up in regulation；Bank up first 40 days, it is 80% to control moisture；Heap postpones 7
My god, it is 65% to control moisture.
(5) postpone by 56 days heaps, material will be banked up and be transferred to separation platform (mesh is 3mm, and vibration frequency is
80rpm), by the way that separation platform is by earthworm and banks up feed separation, the material of banking up through separation platform is to bank up product nutrition
Soil, is not banked up through the earthworm of separation platform with material recycle is banked up for secondary.
Embodiment 2
A kind of municipal sludge base Nutrition Soil, is withered and fallen by 20 kilograms of wet mud (accounting for gross mass 83.3%), and a variety of millet wood
Leaf, dracontomelon duperreanum Litter leaf and mountain ebony Litter leaf be respectively 2 kilograms (accounting for gross mass 8.3%), 0.5 kilogram (account for gross mass
2.1%) with 1.5 kilograms of (accounting for gross mass 6.3%) constitutive materials, bank up and form through earthworm.Making step is as follows：
(1) fresh wet mud is placed in separation platform (mesh is 1mm), with originally water wash 3 times, and pass through horizontal vibration
(vibration frequency is 100rpm) drains moisture；The wooden Litter leaf (drying) of a variety of millet, dracontomelon duperreanum is crushed respectively with pulverizer to wither and fall
Leaf (drying) and mountain ebony Litter leaf (drying), cross 2mm sieves standby；
(2) 20 kilograms of wet mud (accounting for gross mass 83.3%) that is scrubbed and draining is taken, and the wooden Litter leaf of a variety of millet,
Dracontomelon duperreanum Litter leaf and mountain ebony Litter leaf be respectively 2 kilograms (accounting for gross mass 8.3%), 0.5 kilogram (account for gross mass
2.1%) and 1.5 kilograms (accounting for gross mass 6.3%), it is covered with film and ventilation is uniformly mixed in beneath；And adjust its moisture
Content is 80%；
(3) from dispensing Eisenia Foetida and grand Pheretimatschiliensis；According to calculating formula W=[(0.1085M2+21.96M+70)
×k1+(0.1707m2+ 30.81m+65) × k2] × k3, it is 435 grams to calculate and deliver earthworm amount；Weigh 435 grams have ripe ring,
Healthy and strong Eisenia Foetida and grand Pheretimatschiliensis, are uniformly invested in and bank up in material；
(4) according to calculating formula T=[13.886ln (W) -21.11 × k], calculating banked up the time for 66 days；During banking up, often
Manually stirred once every 10 days, and material moisture is banked up in regulation；Bank up first 50 days, it is 80% to control moisture；Heap postpones 7
My god, it is 65% to control moisture.
(5) postpone by 66 days heaps, material will be banked up and be transferred to separation platform (mesh is 3mm, and vibration frequency is
80rpm), by the way that separation platform is by earthworm and banks up feed separation, the material of banking up through separation platform is to bank up product nutrition
Soil, is not banked up through the earthworm of separation platform with material recycle is banked up for secondary.
Effect example 1
The purpose of this experiment is the physicochemical property for analyzing Nutrition Soil of the present invention.
Take the Nutrition Soil 1 obtained in appropriate dehydration dewatered sludge, fresh wet mud, embodiment 1 and obtained in embodiment 2
Nutrition Soil 2, analyzes the content of its unit weight, pH value, organic matter, alkali-hydrolyzable nitrogen, rapid available phosphorus, available potassium and total cadmium, lead, copper, zinc and nickel.
Physicochemical property is as shown in table 1.
The physicochemical property difference of the sludge of table 1 and Nutrition Soil
| Testing index | It is dehydrated dewatered sludge | Nutrition Soil 1 | Fresh wet mud | Nutrition Soil 2 |
| Unit weight (g/cm3) | 0.93 | 0.86 | 0.96 | 0.73 |
| PH value | 6.36 | 6.87 | 6.21 | 6.94 |
| Organic matter (g/kg) | 288.36 | 327.85 | 292.34 | 385.85 |
| Alkali-hydrolyzable nitrogen (mg/kg) | 3542.16 | 3859.34 | 3023.52 | 3566.58 |
| Rapid available phosphorus (mg/kg) | 12370.25 | 13627.51 | 12003.85 | 12403.15 |
| Available potassium (mg/kg) | 1867.51 | 1915.24 | 1775.68 | 1806.53 |
| Total cadmium (mg/kg) | 1.86 | 0.98 | 1.79 | 0.82 |
| Total lead (mg/kg) | 148.36 | 134.56 | 158.48 | 136.35 |
| Total copper (mg/kg) | 163.59 | 142.58 | 154.67 | 133.26 |
| Total zinc (mg/kg) | 586.45 | 554.53 | 580.59 | 530.16 |
| Total nickel (mg/kg) | 47.96 | 38.26 | 45.38 | 32.67 |
As it can be seen from table 1 unit weight and content of beary metal are less than sludge in Nutrition Soil, and available nutrient content is higher than dirt
Mud；Show to combine by gardens Litter-fall-earthworm and bank up, the quality of municipal sludge becomes more loose, organic matter, pH value and speed
Nutrient rise is imitated, and harmful heavy metal content declines, particularly cadmium content declines up to 54%.
By the Nutrition Soil obtained in embodiment 1 and embodiment 2, physical and chemical index, nutritive index and the pollutant of detection refer to
Mark is satisfied by standard《Urban wastewater treatment firm sludge treatment：Forest land shale》(CJ/T 362-2011)、《Urban wastewater treatment
Factory's sludge treatment：Agricultural shale》(CJ/T 309-2009)、《Urban wastewater treatment firm sludge treatment：Afforestation shale》
(GB/T 23486-2009) and《Urban wastewater treatment firm sludge treatment：Betterment of land shale》(C/JT 291-2008), can
Agricultural, forest land use, afforestation use and the betterment of land are applied to recycling to use.
Effect example 2
The purpose of this experiment is to analyze Nutrition Soil of the present invention as the security of seedling medium.
Take what is obtained in the Nutrition Soil 1 obtained in appropriate dehydration dewatered sludge, fresh wet mud, embodiment 1, embodiment 2
Nutrition Soil 2 and commercially available import peat soil, for Course of Corn Seed Germination experiment.Seed sprouts duration of experiment 8 days, investigates and plants
Sub- sprout time, seed germination rate and seedling fresh weight.Correlated results is as shown in table 2.
The sludge of table 2 and Nutrition Soil influence on Course of Corn Seed Germination
| Testing index | It is dehydrated dewatered sludge | Nutrition Soil 1 | Fresh wet mud | Nutrition Soil 2 | Peat soil |
| Earliest sprout time (my god) | 3 | 2 | 4 | 2 | 2 |
| Seed germination rate (%) | 58.3 | 94.5 | 49.6 | 95.8 | 93.8 |
| Field run plant ratio (%) | 63.6 | 90.8 | 56.2 | 92.6 | 91.2 |
| Seedling fresh weight (g/ plants) | 0.76 | 1.35 | 0.62 | 1.41 | 1.14 |
Note：Field run plant ratio (%)=field run plant quantity ÷ is all to sprout seedling quantity × 100
From table 2 it can be seen that corn seed germinating time in dehydration dewatered sludge and new wet mud is postponed, germination percentage
Low, field run plant ratio is low and seedling that grow up to is small and weak, shows that dehydration dewatered sludge and new wet mud are not appropriate for being directly used as jade
In rice seedling culture matrix nutrition soil.By contrast, the Nutrition Soil after banking up shows higher with commercially available import peat soil
Seed germination rate and field run plant ratio, and growth of seedling is more healthy and stronger, showing can be direct through the Nutrition Soil that the inventive method is banked up
Safety is used as seedling medium, and effect is suitable with commercially available import peat soil.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of municipal sludge base Nutrition Soil, it is characterised in that bank up material by following mass percent composition, and filled through earthworm
Divide to bank up and be made：
Urban domestic sewage sludge 60~90%, mountain ebony (Bauhinia purpurea) dry Litter-fall 2~30%, a variety of millet wood
(Neolamarckia cadamba) dry Litter-fall 2%~30%, dracontomelon duperreanum (Dracontomelon duperreanum) is dry to wither
Junk 0~10%.
2. a kind of earthworm banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that comprise the following steps：
(1) pretreatment urban domestic sewage sludge and gardens Litter-fall；
(2) in the ratio described in claim 1 in it is beneath be covered with film and ventilation uniformly mix urban domestic sewage sludge and
Material is banked up in gardens Litter-fall, formation, and it is 60%~85% that moisture content of material is banked up in regulation；
(3) according to quality of material, material properties and earthworm kind is banked up, calculated by calculating formula and deliver earthworm amount, and uniformly delivered
Earthworm；
(4) according to quality of material, material properties, earthworm kind and earthworm injected volume is banked up, calculated by calculating formula and bank up the time, entered
Row fully banks up processing；During banking up, manually stirred once every 7~10 days, and suitably mended according to moisture content of material is banked up
Water-filling point；
(5) fully heap is postponed, and is separated earthworm and is banked up material, obtains banking up product：Municipal sludge base Nutrition Soil；
Described gardens Litter-fall is mountain ebony Litter-fall, the wooden Litter-fall of a variety of millet and dracontomelon duperreanum Litter-fall.
3. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Fresh wet mud is directed to, processing is eluted and drained；For dewatered sludge, mechanical crushing processing is carried out；For garden
Woods Litter-fall, carries out drying and mechanical crushing processing；Dewatered sludge crosses 1~3mm sieves with gardens Litter-fall.
4. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
The kind of described earthworm is Eisenia Foetida (Eisenia foetida), the remote blind earthworm (Amynthas of cortex
Corticis) and at least one of grand Pheretimatschiliensis (Amynthas robustus), earthworm is the healthy and strong earthworm with ripe ring
Earthworm.
5. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Described in step (3) calculating deliver earthworm calculating formula be：
W=[(0.1085M2+21.96M+70)×k1+(0.1707m2+ 30.81m+65) × k2] × k3,
In formula, W for deliver earthworm fresh weight, unit for gram；M be sludge weight, unit for kilogram；M is Litter-fall weight, and unit is
Kilogram；K1 is sludge coefficient：Fresh wet mud coefficient is that 0.8, dehydration dewatered sludge coefficient is 1；K2 is Litter-fall coefficient：Mountain ebony
Litter-fall coefficient is that the wooden Litter-fall of 0.7, a variety of millet is that 0.8, dracontomelon duperreanum Litter-fall coefficient is that 1, mixing Litter-fall coefficient is 0.8；k3
Coefficient is delivered for earthworm：It is that the remote blind earthworm dispensing coefficient of 0.4, cortex is that 0.57, grand Pheretimatschiliensis is thrown that Eisenia Foetida, which delivers coefficient,
It is that 1.2, both or three kinds of earthworm mixing dispensing coefficients are 0.73 to put coefficient；Result of calculation enters a round numbers.
6. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Calculating described in step (4) banks up the calculating formula of time and is：
T=[13.886ln (W) -21.11 × k],
In formula, T is banks up the time, and unit is day；W for deliver earthworm fresh weight, unit for gram；K is that earthworm feeds coefficient：Compatriot likes
Victory earthworm feed coefficient be the remote blind earthworm feed coefficient of 0.4, cortex be 0.76, grand Pheretimatschiliensis feed coefficient be 1.45, both or three
It is 0.88 to plant earthworm and be mixed into eclipse series number；Result of calculation enters a round numbers.
7. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Early stage is banked up, moisture content of material control is banked up 70%~85%；The later stage is banked up, moisture content of material control is banked up and exists
60%~65%.
8. earthworm according to claim 2 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Material of banking up after the completion of banking up is transferred to separation platform, by the way that separation platform is by earthworm and banks up feed separation, thoroughly
The material of banking up for crossing separation platform is to bank up product Nutrition Soil, and not passing through the earthworm of separation platform and banking up material recycle is used for two
It is secondary to bank up.
9. earthworm according to claim 8 banks up the method for making municipal sludge base Nutrition Soil, it is characterised in that：
Separation platform is horizontal vibration platform, and Platform Vibration frequency is 60~140rpm；It is stainless steel mesh, mesh in the middle of platform
For 2mm~5mm.
10. the application of the municipal sludge base Nutrition Soil described in claim 1, it is characterised in that：Described municipal sludge base nutrition
Soil is discarded applied to seedling medium, garden seedling tree and flowers potting media, forest land and afforestation cultivated soil and mine is made
Land soil agent.
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