CN103739344B - Bottom layer spray-seeding base material containing fermented sludge and preparation method thereof - Google Patents
Bottom layer spray-seeding base material containing fermented sludge and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a bottom layer spray-seeding base material containing fermented sludge and a preparation method thereof. The bottom layer spray-seeding base material containing the fermented sludge comprises the following components: fermented sludge, organic matters, loam, a soil water-retaining agent and an adhesive. The bottom layer spray-seeding base material containing the fermented sludge can improve the structure of the soil, and can also improve the soil fertility, the water holding capacity and the ion exchange capacity of the soil, so that a soil environment suitable for the growth of plants is created, the base material has good air permeability and water holding capacity, is rich in a large amount of organic matters, and provides good environment and nutrients for the rapid growth of the plants; meanwhile, the fermented sludge is used for replacing the traditional peat, so that the sludge is changed into valuable, the resource development and utilization of the sludge are improved, the cost of ecological restoration engineering is reduced, great environmental benefits and social benefits are created, objective economic benefits are created for enterprises, and the development of circular economy is promoted.
Description
Technical field
The present invention relates to the base material field of sowing grass seeds by duster in ecological treatment of slope, particularly, relate to a kind of bottom containing fermented sludge and to sow grass seeds by duster base material and its preparation method.
Background technology
At present, the main way of ecological treatment of slope adopts Seed spraying technology to carry out revegetation and recovery, namely utilize special hydroseeding equipment the dedicated substrate prepared is injected in equably exposed domatic on, form the existing loose ventilative artificial growth layer again with some strength and fertility of one deck.By adopting the technique of two-layer injection, first spraying base material bottom, then spraying plant species sublayer.Traditional base material of sowing grass seeds by duster is that wherein peat accounts for 20 ~ 30%(cured article of substrate weight of sowing grass seeds by duster with peat, agricultural solid residue (agricultural crop straw, rice husk, wood chip etc.), water-holding agent, tackiness agent and loam etc. for main component).Northeast is the main place of production of peat, and the price of peat itself is not high, can water ratio higher, make logistics cost surging, thus cause the use cost of peat higher.For Beijing, the price of peat is per ton up to about 600 yuan (not containing freight charges), and the price of Central China's peat is per ton up to about 1000 yuan (not containing freight charges), therefore, seek a kind of inexpensive substitute or reduce the usage quantity of peat to greatest extent, just become the important channel reducing engineering cost.
Municipal sludge is the settling that municipal sewage plant produces in the dirty water decontamination handles process, the extremely complicated heterogeneous body be made up of organic relic, microorganism, inorganic particle and colloid etc.Along with the quickening of Urbanization in China and the raising of municipal water treatment capacity, the generation of mud increases year by year.It is 3800t/d(water ratio is 80% that Beijing in 2010 produces mud total amount), estimate that sludge yield in 2015 reaches 5000t/d.At present, only have the mud less than 50% to carry out disposal and the recycling such as compost and building materials utilization, all the other mud have just carried out simply banking up temporarily, lack effective final outlet.According to Beijing's sludge ultimate disposal planning in 2015, will be prior development direction for land remediation.
Municipal sludge contains higher organic matter and mineral nutrition, and (wherein organic mean value is 384g/kg, nitrogen phosphorus mean value is respectively 27.0g/kg and 14.3g/kg), even higher than general farm manure (average nitrogenous 20.9g/kg, phosphorous 8.96g/kg in hog manure dry-matter; Average nitrogenous 16.7g/kg, phosphorous 4.30g/kg in ox barnyard manure).That is, mud is totally the fertilizer that one is rich in organic matter (C/N is lower, generally lower than 10), high nitrogen, high phosphorus and low potassium, and pH is neutral or slant acidity, and its nutrient content is higher than general fowl and animal excrement, and mineralization velocity is also rapid than farm manure.
In prior art, although have similar document " city sludge sow grass seeds by duster base material and the application in afforestation thereof " to disclose can to utilize municipal sludge to carry out biological dewatered process for producing to sow grass seeds by duster green northern base material, but in using function, the not open bottom that is not prepared into specially is sowed grass seeds by duster base material; Further, because selection is different, the diverse base material of sowing grass seeds by duster with the application is prepared into.
Therefore, if can by municipal sludge, the mud especially after fermentation uses, and as the raw material of base material of sowing grass seeds by duster, carrying out ecological treatment of slope, for improving Soil structure, increasing soil fertility, will have huge advantage and application prospect.
Summary of the invention
In order to solve the problems of the technologies described above, an object of the present invention is to provide a kind of bottom containing fermented sludge and sows grass seeds by duster base material.
Another object of the present invention is to provide the described bottom containing fermented sludge and sows grass seeds by duster the preparation method of base material.
Bottom containing fermented sludge provided by the invention is sowed grass seeds by duster base material, comprises following composition: fermented sludge, organism, loam, water-loss reducer of soil and tackiness agent.
Wherein, described fermented sludge, the volume parts of organism and loam is: 0 < fermented sludge≤25 part, organism 10 parts, 65 parts≤loam < 90 parts.
Further, the volume parts difference preferably 10 ~ 35 parts and 55 ~ 80 parts of described fermented sludge and loam.
Further, the volume parts difference preferably 10 ~ 25 parts and 65 ~ 80 parts of described fermented sludge and loam.
Further, the volume parts difference most preferably 25 parts and 65 parts of described fermented sludge and loam.
Bottom containing fermented sludge provided by the invention is sowed grass seeds by duster base material, also comprises microbiobacterial agent.
Wherein, water-loss reducer of soil, the amount of application of tackiness agent and microbiobacterial agent is with the volume computing of described fermented sludge, loam and organic mixture, in the described mixture of per unit volume, water-loss reducer of soil, the parts by weight of tackiness agent and microbiobacterial agent are: water-loss reducer of soil 150 parts, 100 parts, tackiness agent and microbiobacterial agent 45 parts.
Bottom containing fermented sludge provided by the invention is sowed grass seeds by duster base material, most preferably, comprises following composition: the fermented sludge of volume parts 25 parts, organism 10 parts and 65 parts, loam; In the fermented sludge of per unit volume, loam and organic mixture, the water-loss reducer of soil of parts by weight 150 parts, 100 parts, tackiness agent and microbiobacterial agent 45 parts.
Wherein, described organism is selected from one or more in the waste of agricultural crop straw, farm crop shell and wood working.
Further, described farm crop shell is peanut or paddy etc.
Further, the waste of described wood working is wood sawdust or wood shavings etc.
Preferably, described organism is selected from one or more in stalk, peanut, paddy, wood sawdust and wood shavings.
In the present invention, described fermented sludge is the method for the dewatered sludge employing high temperature aerobic composting of municipal sewage plant, and the fermentation through aerobic microbiological is decomposed and is converted into the higher humic-like substance of stability.Outward appearance is brown, loose, dispersion, fine particulate, water ratio≤30.0%, shale reaches " urban wastewater treatment firm sludge disposal afforestation shale " (GB/T23486-2009) relevant regulations and control criterion.Fermented sludge contains abundant organic matter, nitrogen, phosphorus and other appropriate nutritive substances, and nutrient form is more conducive to plant absorption, has higher fertility and agricultural value; And eliminate stink, kill most of pathogenic bacteria and parasite (ovum), reach innoxious object.Simultaneously, fermented sludge fertility is far away higher than peat, and there is stronger viscosity, water-absorbent and plasticity, suitable base material of sowing grass seeds by duster, the especially bottom of being mixed with into loam, organism etc. is sowed grass seeds by duster base material, thus substitute peat to greatest extent, in bare side sloping, especially bare side sloping visitor restoration of the ecosystem process, scientific and reasonable use effectively can not only increase soil fertility, promote plant growth, Soil structure, prevention soil and water loss can be improved simultaneously, there is important environment, ecology, Social and economic benef@.
In the present invention, can containing various nutrient elements such as a large amount of carbon, nitrogen, phosphorus, potassium, calcium, magnesium, sulphur and silicon in described organism, simultaneously can the organic substance such as rich cellulose, hemicellulose, xylogen and protein, be a kind of can the solid waste resource of recycling.In addition, organism can improve soil physical properties, improves storing property of guarantor and the resiliency of soil, and above-mentioned organic use simultaneously can also be protected Ecological Environment, promote the Ecological Development of agricultural.As long as organism can reach above-mentioned effect, can adopt.
In the present invention, described loam refers to the soil that glutinous grain in soil particle composition, powder, sand grain content are moderate.Quality, between clay and sand, has the advantage of clay and sand concurrently, and venting and water permeable, water conservation heat-insulating property are all better, are comparatively ideal planting soils.The loam of universal significance can adopt.
In the present invention, described water-loss reducer of soil is a kind of high molecular polymer with super-strong moisture absorbing water conservation and releasability of synthetic, and claim SAP, main component is polyacrylate and polyacrylamide amine copolymer, and model is that gloomy MP3500KM likes in France.It has the high-hydroscopicity organic molecule of ionization property group carboxyl structure, the intermolecular network-like structure for crosslinking polymerization, containing strongly hydrophilic group, the osmotic pressure produced by outside electrolyte ion concentration in its molecule, has strong association to water; Absorption when ambient water is many, water discharge time few, so absorb water, release water iterative cycles, can keep 3-D solid structure for a long time, thus long-term to phytoremediation; Zinc fractions granule vesicular structure, soft ventilative can be made simultaneously, both ensured plant demand, the permeability of clay and the retention ability of sandy soil can be increased again.Other water-loss reducer of soil with above-mentioned functions also can adopt, and what effect adopted with the application is excellent.
In the present invention, described tackiness agent is a kind of water-soluble organic soil conditioner of one (having another name called rubber powder, soil-retaining agent, agent for preserving soil moisture, soil and water conserving agent, soil granular agent etc.) be polymerized by high polymer polyacrylamide (PAM), belong to the high polymer long chain polymkeric substance of synthetic, model is that gloomy A30 likes in France.It has the characteristic of stronger sedimentation and flocculation soil particle, can impel the crumb structure that Zinc fractions is good, forms the carrier of antiscour, antiseep; Be mainly used in that greening is sowed grass seeds by duster, engineering of planting trees, have reduce because rainwash causes depletion, improve the effects such as soil permeability power, soil conservation fertilizer conservation, alleviation and adjustment soil water evaporation.Other water-loss reducer of soil with above-mentioned functions also can adopt, and what effect adopted with the application is excellent.
In the present invention, described microbiobacterial agent is the high-tech product innovation that Beijing Huimin reaches the research and development of development in science and technology center, be a kind of biotechnological formulation with polynary effect, it can improve soil microorganisms flora, suppress soil surface characters breeding, effectively can prevent the root-rot of crop, found the diseases such as withered; Organic and the inorganic nutrient of activating soil, improves fertilizer efficiency rate, promotes crop circulation, Prolonged absorption utilizes; Improve soil aggregate, elimination is hardened simultaneously, improves preserve moisture and fertility ability, drought resisting, degeneration-resistant, cold-resistant, resistant to lodging.As long as microbiobacterial agent can reach above-mentioned effect, can adopt.
The described bottom containing fermented sludge provided by the invention is sowed grass seeds by duster the preparation method of base material, comprise: the fermented sludge of above-mentioned any one, organism and loam are mixed, and again mix after adding the water-loss reducer of soil of above-mentioned any one, tackiness agent and microbiobacterial agent.
Wherein, fermented sludge, organism and loam mix under the condition of normal temperature, and described normal temperature is specially 20 ~ 25 DEG C.
Preparation method provided by the invention, before above-mentioned preparation method, also comprises: need reject the foreign material such as the stone in loam, tree root.
Preparation method provided by the invention, before above-mentioned preparation method, also comprises: loam is carried out process of sieving, and sieve aperture is 1.0 ~ 2.0cm, is preferably 1.5cm.
Provided by the inventionly utilize fermented sludge to prepare bottom to sow grass seeds by duster base material, tool has the following advantages:
1) mud selected and organism source comparatively wide, achieve the recycling of solid waste, improve mud and organic utilization ratio, avoid and to store up separately or burning and processing sludge and organism have the problem of pollution to surrounding environment, make it turn waste into wealth;
2) use fermented sludge to substitute traditional peat, reduce Ecological Restoration Project cost;
3) by reasonably combined, especially play synergistic rational proportion and selected fermented sludge, organism, loam etc. are mixed and made into base material of sowing grass seeds by duster, effectively regulate SOIL ORGANIC NITROGEN, phosphorus, potassium, organic content, improve Soil structure, build good plant growth environment;
4) structure of base material of sowing grass seeds by duster that the interpolation of water-loss reducer of soil and tackiness agent is not only perfect, can also reach the effect of soil moisture conservation.
To use the present invention by fermented sludge, organism, loam, water-loss reducer of soil, tackiness agent and microbiobacterial agent mixed preparing, especially to sow grass seeds by duster base material according to the bottom of different proportioning mixed preparing, the structure of soil can be improved, can increase soil fertility again, the water-holding power of soil and ion-exchange capacity, thus construction plant fits raw edatope, there is good ventilation property and retentiveness, and be rich in a large amount of organic matter, for the quick growth of plant provides good environment and nutrient; Use fermented sludge to substitute traditional peat simultaneously, mud is turned waste into wealth, the resource utilization that improve mud develops, reduce Ecological Restoration Project cost, create huge environmental benefit and social benefit, also for enterprise creates objective economic benefit, facilitate the development of recycling economy.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.Without departing from the spirit and substance of the case in the present invention, the amendment do the inventive method, step or condition or replacement, all belong to scope of the present invention.
If do not specialize, in the present invention, NM operation is the routine operation of this area, as the rotating speed etc. stirred.
The material used in the present invention is the conventional material that can commercially obtain.
In the present invention, the unit of volume can be cubic meter, cube km etc., and the unit of weight can be gram, kilogram etc., depending on the concrete condition of production.In the fermented sludge of per unit volume, loam and organic mixture, water-loss reducer of soil, the amount of application of tackiness agent and microbiobacterial agent is according to rational ratio-dependent.
Fermented sludge of the present invention is from Beijing city sludge disposal factory of Pang Gezhuang of draining group.
Embodiment 1
Prepare bottom to sow grass seeds by duster the method for method of base material, comprising:
(1) foreign material such as stone, tree root in loam are rejected;
(2) loam is carried out process of sieving, sieve aperture is 1.5cm;
(3) by the loam after sieving according to fermented sludge 10 parts, organism (stalk, peanut, paddy, wood sawdust and wood shavings) 10 parts, (unit is m to the volume parts that loam is 80 parts
3) mix under normal temperature (20 DEG C), the amount of application of water-loss reducer of soil (SAP), tackiness agent (PAM) and microbiobacterial agent with the volume computing of the mixture of fermented sludge, loam and organism three, by water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3and microbiobacterial agent 45g/m
3weight, again stir after water-loss reducer of soil, tackiness agent and microbiobacterial agent are added, mix.
Embodiment 2
Prepare bottom to sow grass seeds by duster the method for method of base material, comprising:
(1) foreign material such as stone, tree root in loam are rejected;
(2) loam is carried out process of sieving, sieve aperture is 1.5cm;
(3) by the loam after sieving according to fermented sludge 25 parts, organism (stalk, paddy, wood sawdust and wood shavings) 10 parts, (unit is m to the volume parts that loam is 65 parts
3) mix under normal temperature (22 DEG C), the amount of application of water-loss reducer of soil (SAP), tackiness agent (PAM) and microbiobacterial agent with the volume computing of the mixture of fermented sludge, loam and organism three, by water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3and microbiobacterial agent 45g/m
3weight, again stir after water-loss reducer of soil, tackiness agent and microbiobacterial agent are added, mix.
Embodiment 3
Prepare bottom to sow grass seeds by duster the method for method of base material, comprising:
(1) foreign material such as stone, tree root in loam are rejected;
(2) loam is carried out process of sieving, sieve aperture is 1.5cm;
(3) by the loam after sieving according to fermented sludge 30 parts, organism (stalk, peanut, paddy and wood shavings) 10 parts, (unit is m to the volume parts that loam is 65 parts
3) mix under normal temperature (25 DEG C), the amount of application of water-loss reducer of soil (SAP), tackiness agent (PAM) and microbiobacterial agent with the volume computing of the mixture of fermented sludge, loam and organism three, by water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3and microbiobacterial agent 45g/m
3weight, again stir after water-loss reducer of soil, tackiness agent and microbiobacterial agent are added, mix.
Embodiment 4
Prepare bottom to sow grass seeds by duster the method for method of base material, comprising:
(1) foreign material such as stone, tree root in loam are rejected;
(2) loam is carried out process of sieving, sieve aperture is 1.5cm;
(3) by the loam after sieving according to fermented sludge 35 parts, organism (stalk, peanut, wood sawdust and wood shavings) 10 parts, (unit is m to the volume parts that loam is 55 parts
3) mix under normal temperature (20 DEG C), the amount of application of water-loss reducer of soil (SAP), tackiness agent (PAM) and microbiobacterial agent with the volume computing of the mixture of fermented sludge, loam and organism three, by water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3and microbiobacterial agent 45g/m
3weight, again stir after water-loss reducer of soil, tackiness agent and microbiobacterial agent are added, mix.
Experimental example
Test design: the method adopting the experiment of root case, carries out base material seed germination experiment, nutrient condition and the simultaneous test on plant-growth impact respectively, filters out best mix proportion scheme.
Mixture experiment establishes 5 to process prescription:
Prescription A(is with embodiment 1), fermented sludge 10 parts, organism 10 parts, 80 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3;
Prescription B(is with embodiment 2), fermented sludge 25 parts, organism 10 parts, 65 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3;
Prescription C(is with embodiment 3), fermented sludge 30 parts, organism 10 parts, 65 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3;
Prescription D(is with embodiment 4), fermented sludge 35 parts, organism 10 parts, 55 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3;
Contrast CK(does not add fermented sludge, and namely component is organic 10 parts, 90 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3)).
It is long × wide × high that root case is of a size of 50 × 50 × 50(), the base material mixed is placed in root case, Surface mulch loam 3cm, often 3 repetitions are established in process, random alignment, test period is in April, 2011 ~ 2012 year May, and respectively at the root case sowing good forage alfalfa seed of above-mentioned process, each case application rate is 2g/m
2.At Growing season, every middle of a month is poured water once.
(1) different treatment prescription impact that alfalfa seed is germinateed
As shown in table 1, different process prescriptions presents different effects to seed germination, fermented sludge addition is no more than 25%(and comprises 25%) time, alfalfa seed percentage of germination and germination index all higher than contrast CK, illustrate that the fermented sludge of proper concn also exists promoter action to its percentage of germination.Therefore, when fermented sludge addition is no more than 25%, the toxicity of mixture base material is little, is best suited for the seed germination of plant; Fermented sludge has certain toxic action to seed germination, is not The more the better, but according to the enforcement of the application, is favourable to the structure of the base material soil body.
Table 1: the impact that different treatment prescription germinates on alfalfa seed
| Process | Percentage of germination (%) | Germination index (%) |
| CK | 80 | 69.1 |
| A | 86 | 77.8 |
| B | 90 | 78.7 |
| C | 78 | 64.2 |
| D | 71 | 57.8 |
(2) different treatment prescription is on the impact of base material unit weight
Unit weight can reflect the porousness of base material; Same base material, unit weight is little shows that base material is more loose, and hole is many, to the growth of vegetation advantageously; Otherwise then soil body consolidation, structural difference, hole is few.As shown in Table 2, in 1 year as time goes by, each unit weight processing the base material that prescription obtains increases all gradually; But respectively use the base material unit weight of fermented sludge process all than contrasting the low of CK; Improved treatment 1 year, the unit weight average of A, B, C and D prescription process is respectively than contrasting the also low by 8.61% of CK, 15.89%, 17.22% and 18.54%.Illustrate thus, use fermented sludge and can obviously control base material unit weight in 1 year, and will far below the unit weight of base material not using fermented sludge process.
Table 2: different treatment prescription affects g/cm to base material unit weight
3
| Process | 3 months | 6 months | 12 months | Average |
| CK | 1.48 | 1.51 | 1.53 | 1.51 |
| A | 1.35 | 1.38 | 1.40 | 1.38 |
| B | 1.23 | 1.27 | 1.31 | 1.27 |
| C | 1.21 | 1.26 | 1.28 | 1.25 |
| D | 1.20 | 1.24 | 1.26 | 1.23 |
(3) impact of different treatment prescription and nutrient organic on base material
As shown in table 3, after using fermented sludge, base material organic matter, hydrolyzable nitrogen, available phosphorus all significantly increase compared with CK with quick-acting potassium content, illustrate that fermented sludge obviously can increase organic in base material and nutrient content; And fermented sludge amount of application and base material organic matter, hydrolyzable nitrogen, available phosphorus and quick-acting potassium content are in extremely significantly positive correlation.As can be seen here, after fermented sludge is used, base material fertility can be increased, improve its physical properties, thus be conducive to base material preserve moisture and fertility, be beneficial to plant-growth.
Table 3: the impact of different treatment prescription and nutrient organic on base material
(4) different treatment prescription is on the impact of alfalfa growing
1) on the impact of clover cover degree, density
As seen from Table 4, the cover degree of clover, density all present the trend of first increases and then decreases with the increase of fermented sludge blend amount, consumption reaches peak value when being 25%, reduces gradually afterwards, and the clover cover degree of fermented sludge different blended dosage, density are all higher than contrast (CK).
Table 4: different treatment prescription is on the impact of clover cover degree, density
| Mensuration project | CK | A | B | C | D |
| Density (branch/m 2） | 2612.0 | 2843.0 | 3054.0 | 2901.0 | 2791.0 |
| Cover degree (%) | 82.50 | 85.42 | 93.11 | 88.65 | 84.01 |
2) on the impact of alfalfa growing amount
As shown in table 5, the growth of different treatment prescription to clover did not make significant difference in seedling stage, but As time goes on, its impact increases gradually, the each process alfalfa growing amount using fermented sludge during results is all significantly higher than contrast CK, and when fermented sludge addition is 25%, alfalfa growing is the fastest.
Table 5: different treatment prescription is on the impact of alfalfa growing height
| Process | 1 month | 2 months | 3 months | 4 months |
| CK | 6.80 | 24.23 | 36.21 | 48.42 |
| A | 7.14 | 35.32 | 52.43 | 56.87 |
| B | 7.76 | 42.12 | 58.75 | 68.55 |
| C | 7.32 | 44.54 | 55.31 | 60.54 |
| D | 7.62 | 40.43 | 51.85 | 58.41 |
3) on the impact of clover biomass
As shown in table 6, different treatment prescription is to clover biomass along with the increase of fermented sludge blend amount presents the trend first increasing and reduce afterwards, and when wherein blend amount is 25%, biomass is maximum, and comparatively contrasting CK increases by 84.53%.
Table 6: different treatment prescription is on the impact of clover biomass
| Biomass | CK | A | B | C | D |
| Biomass (g/m 3） | 1355.76 | 1977.43 | 2501.86 | 1842.37 | 1647.12 |
Above-mentioned test-results shows: suitable base material proportioning is: 0 < fermented sludge≤25 part, organism 10 parts, 65 parts≤loam < 90 parts, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3.Wherein best proportioning is fermented sludge 25 parts, organism 10 parts, 65 parts, loam, water-loss reducer of soil 150g/m
3, tackiness agent 100g/m
3, microbiobacterial agent 45g/m
3.
To use the present invention by fermented sludge, organism, loam, water-loss reducer of soil, tackiness agent and microbiobacterial agent mixed preparing, especially to sow grass seeds by duster base material according to the bottom of different proportioning mixed preparing, the structure of soil can be improved, can increase soil fertility again, thus built plant and fit raw edatope, and normal growth provides required nutritive ingredient after emerging to plant seed in time, facilitates the growth of root system of plant and over-ground part, ensure the normal growth of plant.Meanwhile, use fermented sludge to substitute traditional peat to greatest extent, mud is turned waste into wealth, the resource utilization that improve mud develops, reduce Ecological Restoration Project cost, create huge environmental benefit, Social benefit and economic benefit, facilitate the development of recycling economy.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (7)
1. to sow grass seeds by duster a base material containing the bottom of fermented sludge, comprise following composition: fermented sludge, organism, loam, water-loss reducer of soil and tackiness agent, also comprise microbiobacterial agent; Fermented sludge, the volume parts of organism and loam is: 0 < fermented sludge≤25 part, organism 10 parts, 65 parts≤loam < 90 parts, water-loss reducer of soil, the amount of application of tackiness agent and microbiobacterial agent with the volume computing of described fermented sludge, loam and organic mixture, with g/m
3meter, in the described mixture of per unit volume, water-loss reducer of soil, the parts by weight of tackiness agent and microbiobacterial agent are: water-loss reducer of soil 150 parts, 100 parts, tackiness agent and microbiobacterial agent 45 parts; Described fermented sludge is the method for the dewatered sludge employing high temperature aerobic composting of municipal sewage plant, decomposes through aerobic microbiological fermentation and is converted into the higher humic-like substance of stability.
2. the bottom containing fermented sludge according to claim 1 is sowed grass seeds by duster base material, and it is characterized in that, the volume parts of fermented sludge and loam is respectively 10 ~ 25 parts and 65 ~ 80 parts.
3. the bottom containing fermented sludge according to claim 2 is sowed grass seeds by duster base material, and it is characterized in that, the volume parts of fermented sludge and loam is respectively 25 parts and 65 parts.
4. to sow grass seeds by duster base material containing the bottom of fermented sludge according to claim 1 or 2 or 3, it is characterized in that, described organism is selected from one or more in the waste of agricultural crop straw, farm crop shell and wood working.
5. the bottom containing fermented sludge according to claim 4 is sowed grass seeds by duster base material, and it is characterized in that, described water-loss reducer of soil main component is polyacrylate and polyacrylamide amine copolymer; Described tackiness agent is polymerized by high polymer polyacrylamide.
6. the preparation method of the base material of sowing grass seeds by duster containing the bottom of fermented sludge described in Claims 1 to 5 any one, comprising: fermented sludge, organism and loam are mixed, and again mixes after adding water-loss reducer of soil, tackiness agent and microbiobacterial agent.
7. preparation method according to claim 6, is characterized in that, fermented sludge, organism and loam mix under the condition of 20 ~ 25 DEG C.
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