CN106550796A - A kind of preparation method of sludge organism charcoal base roof greening substrate - Google Patents

A kind of preparation method of sludge organism charcoal base roof greening substrate Download PDF

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Publication number
CN106550796A
CN106550796A CN201610931616.XA CN201610931616A CN106550796A CN 106550796 A CN106550796 A CN 106550796A CN 201610931616 A CN201610931616 A CN 201610931616A CN 106550796 A CN106550796 A CN 106550796A
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China
Prior art keywords
sludge
matrix
roof greening
preparation
parts
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CN201610931616.XA
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Chinese (zh)
Inventor
谢越
陈勃
操涛
聂月
秦杨
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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Priority to CN201610931616.XA priority Critical patent/CN106550796A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00Growth substrates; Culture media; Apparatus or methods therefor

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizers (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The present invention relates to a kind of preparation method for the new sludge cultivation matrix of roof greening, the cultivation matrix for roof greening is light-duty resistance to compression Granular sludge cultivation matrix.Municipal sludge and polyvinyl alcohol with moisture content below 50% as primary raw material, with macromolecule resin, polyester resin, acetone as auxiliary element.With sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive.Its preparation process includes, gets the raw materials ready, mixes, molding, peplos, mummification.Prepared light-duty resistance to compression mud granule comprcssive strength is more than 10MPa, and under the conditions of saturation water, unit weight is 360 420kg/m3, effectively reduce roof substrate load, unit volume water absorption rate 70% 78.5%, fertilizer-preserving ability is strong, beneficial to roof drainage.

Description

A kind of preparation method of sludge organism charcoal base roof greening substrate
Technical field
The present invention relates to a kind of New Roof afforests cultivation matrix, more particularly to a kind of Urban Roof afforests new sludge The research and development of cultivation matrix.
Background technology
With developing rapidly for urban construction, how to expand green coverage in limited city space, become people face To new problem.The new technique that roof greening is based on this problem and arises at the historic moment, the function of this technology can be concluded For the following aspects:(1)Alleviate urban heat land effect, adjust urban climate.(2)Roof plants can absorb sulfur dioxide, nitrogen Oxide toxic gas, purifying city air(3)Increase city's green areas, improve urban ecological environment.(4)Roof greening energy The natural rainwater of retention more than 65%, slows down the pressure of sewerage system(5)Reduce the temperature that summer high temperature and winter severe cold bring Difference change, effectively slows down the aging of construction material, extends building service life.
Roof greening technology is related to roofing load, root-resistant puncturing waterproof layer, row(Store)Water layer, hypothalluses thickness, plant choosing Select, plant is fixed, green area irrigation maintenance correlation technique, wherein the significantly selection of roof greening substrate, is needed here Two key factors that substrate is solved are load and draining.Natural soil unit weight is too high, typically using light-duty hybrid sysnthesis Plant soil, i.e. lightweight cultivation matrix.
The work of this respect has been done in many researchs.China Patent Publication No. CN105594505A discloses a kind of roof greening The preparation method and using method of special light-duty composite interstitial substance, its formula components are mainly coconut palm slag, wheat straw, corn straw, withered Branch and leaf, Vermiculitum, lime-ash and river sand.China Patent Publication No. CN105724208A discloses a kind of Herba hylotelephii erythrosticti plant roof greening base Matter, matrix formulations are mainly organic material mixture, perlite, cinder and brickbat.Although these patents solve the problems, such as lightweight, But granule is little, it is easily loose the characteristics of cause drainage performance poor.China Patent Publication No. CN201349426Y discloses a kind of dirt The ecological afforestation bag of mud substrate, although solve drainage problem, but lightweight becomes another technical problem again.Therefore, research and develop same When have lightweight, easy drainage character concurrently, and the substrate that is easy to get of raw material becomes the key of roof greening technology.
Municipal sludge is the garbage of sewage disposal, and raw material is simple and easy to get, the content of organic matter 72.98%, pH6.8, is done 300 kg/m of sludge unit weight after change3Left and right, moisture content more than 60%, this causes municipal sludge to become roof greening substrate Natural selection.
The content of the invention
The present invention be directed to the problems referred to above, with municipal sludge as raw material, develop a kind of new sludge of roof greening Cultivation matrix is light-duty resistance to compression Granular sludge cultivation matrix.
A kind of preparation method for the new sludge cultivation matrix of roof greening, its feature is:Step is prepared including following Suddenly:
(1)Get the raw materials ready:With municipal sludge and polyvinyl alcohol as primary raw material, the furtherance supplemented by macromolecule resin, polyester resin, glycerol Point.With sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive.The weight ratio of each raw material:
Core matrix:80-90 parts of mummification powder sludge:
10-20 parts of polyvinyl alcohol:
Auxiliary matrix:15-25 parts of macromolecule resin
Polyester resin(A glue:B glue=2:1)50-60 parts
5-10 parts of glycerol
1-2 parts of sludge organism charcoal
1-2 parts of ethylene glycol
1-2 parts of active hydrogen chain extender
(2)Mixing:
Core matrix mixes:Polyvinyl alcohol suspension after heating for dissolving is mixed with powder sludge, core matrix is obtained
Auxiliary matrix mixes:Each raw material is mixed in proportion, is sufficiently stirred for obtaining coating agent
(3)Molding peplos:Initial pelletize is carried out to core matrix, step is used(2)The auxiliary matrix coating agent of preparation is to core base Matter peplos, and peplos 3--4 time repeatedly, obtain granule of the size in 4--6mm
(4)Mummification:To step(3)The sludge coated granule surface drying and other treatment for obtaining, that is, obtain the light-duty resistance to compression of the requirement Granular sludge afforests cultivation matrix
Preferably, the new sludge cultivation matrix preparation method of the roof greening, it is characterised in that:Described sludge is nature Grind powder sludge by 20 mesh sieves after air-drying, and moisture content is 50% or so.
Preferably, when preparing polyvinyl alcohol suspension, using heating in water bath, temperature control is at 90 DEG C
Preferably, to step(3)In initial mud granule peplos peplos are rolled using disk
The light-duty resistance to compression Granular sludge cultivation matrix of the roof greening is obtained using above-mentioned preparation method
Preferably, the light-duty resistance to compression Granular sludge cultivation matrix of the roof greening for preparing, comprcssive strength is more than 10MPa, Under the conditions of saturation water, unit weight is 360--420kg/m3, unit volume water absorption rate 70%--78.5%.
Preferably, a kind of light-duty resistance to compression Granular sludge cultivation matrix obtained using above-mentioned preparation method is as roof The purposes of greening
Based on above-mentioned technical proposal, it is an advantage of the invention that:
New medium prepared by the present invention, adopts with the municipal sludge and polyvinyl alcohol of moisture content 50% or so as primary raw material, with Macromolecule resin, polyester resin, acetone are auxiliary element.With sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive.This The substrate that invention is provided can not only meet roof greening soil and require, can also effectively eliminate city domestic sewage treatment plant dirty Mud, reaches resource circulation utilization, while the afforesting matrix quality of materials is light, raw material is easily obtained, with low cost, retain water and nutrients effect It is really good.Substrate is made graininess can effectively prevent substrate loss, beneficial to roof drainage.
The preparation method is simple, and its preparation process includes, gets the raw materials ready, mixing, molding, peplos, and mummification can obtain light-duty anti- Pressure Granular sludge cultivation matrix, it is easy to industrialized production, raw material sources extensively, are especially suitable for roof greening popularization.
Specific embodiment
It is following in conjunction with specific embodiments, and the present invention is described in further detail with reference to data.It should be understood that these embodiments The present invention, originally non-with any new restriction the scope of the present invention solely for the purpose of illustration.
Embodiment 1:
A kind of preparation method for the new sludge cultivation matrix of roof greening, including following preparation process:
(1)Get the raw materials ready:With municipal sludge and polyvinyl alcohol as primary raw material, the furtherance supplemented by macromolecule resin, polyester resin, glycerol Point.With sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive.The weight ratio of each raw material:
Core matrix:85 parts of mummification powder sludge:
15 parts of polyvinyl alcohol:
Auxiliary matrix:17 parts of macromolecule resin
Polyester resin(A glue:B glue=2:1)58 parts
6 parts of glycerol
1 part of sludge organism charcoal
2 parts of ethylene glycol
2 parts of active hydrogen chain extender
(2)Mixing:
Core matrix mixes:Polyvinyl alcohol suspension after heating for dissolving is mixed with powder sludge, core matrix is obtained
Auxiliary matrix mixes:Each raw material is mixed in proportion, is sufficiently stirred for obtaining coating agent
(3)Molding peplos:Initial pelletize is carried out to core matrix, step is used(2)The auxiliary matrix coating agent of preparation is to core base Matter peplos, and peplos 4 times repeatedly, obtain granule of the size in 5mm
(4)Mummification:To step(3)The sludge coated granule surface drying and other treatment for obtaining, that is, obtain the light-duty resistance to compression of the requirement Granular sludge afforests cultivation matrix
Described when preparing polyvinyl alcohol suspension, using heating in water bath, temperature control is at 90 DEG C
It is described right(3)In initial mud granule peplos peplos are rolled using disk
The light-duty resistance to compression Granular sludge cultivation matrix of the roof greening is obtained using above-mentioned preparation method
The light-duty resistance to compression Granular sludge cultivation matrix of the roof greening for preparing, comprcssive strength is 10.6MPa, saturation water Under the conditions of unit weight be 398.3kg/m3, unit volume water absorption rate 72.3%.
Purposes of the light-duty resistance to compression Granular sludge cultivation matrix obtained using above-mentioned preparation method as roof greening
Embodiment 2:
A kind of preparation method for the new sludge cultivation matrix of roof greening, including following preparation process:
(1)Get the raw materials ready:With municipal sludge and polyvinyl alcohol as primary raw material, the furtherance supplemented by macromolecule resin, polyester resin, glycerol Point.With sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive.The weight ratio of each raw material:
Core matrix:83 parts of mummification powder sludge:
17 parts of polyvinyl alcohol:
Auxiliary matrix:19 parts of macromolecule resin
Polyester resin(A glue:B glue=2:1)56 parts
5 parts of glycerol
2 parts of sludge organism charcoal
3 parts of ethylene glycol
2 parts of active hydrogen chain extender
(2)Mixing:
Core matrix mixes:Polyvinyl alcohol suspension after heating for dissolving is mixed with powder sludge, core matrix is obtained
Auxiliary matrix mixes:Each raw material is mixed in proportion, is sufficiently stirred for obtaining coating agent
(3)Molding peplos:Initial pelletize is carried out to core matrix, step is used(2)The auxiliary matrix coating agent of preparation is to core base Matter peplos, and peplos 5 times repeatedly, obtain granule of the size in 4mm
(4)Mummification:To step(3)The sludge coated granule surface drying and other treatment for obtaining, that is, obtain the light-duty resistance to compression of the requirement Granular sludge afforests cultivation matrix
Described when preparing polyvinyl alcohol suspension, using heating in water bath, temperature control is at 90 DEG C
It is described right(3)In initial mud granule peplos peplos are rolled using disk
It is a kind of to obtain the light-duty resistance to compression Granular sludge cultivation matrix of the roof greening using above-mentioned preparation method
The light-duty resistance to compression Granular sludge cultivation matrix of the roof greening for preparing, comprcssive strength is 11.2MPa, saturation water Under the conditions of unit weight be 364.2kg/m3, unit volume water absorption rate 71.2%.
Purposes of the light-duty resistance to compression Granular sludge cultivation matrix obtained using above-mentioned preparation method as roof greening
The advantage of the above embodiment of the present invention and technical scheme also includes:
1. graininess, anti-loss effect are good, and slow releasing function is good
Conventional roof greening soil property is changed to granular matrix by the present invention, and anti-loss effect is preferable, and granular matrix is with slow Fertilizer effect is released, often adds other slow releasing agents without the need for Jing, reduces cost is without frequently maintenance.
2. resource circulation utilization, environmental protection and energy saving
The sludge of the roof greening new sludge cultivation matrix effective process city domestic sewage treatment plant that the present invention is provided is asked Topic, and its sludge is used for into roof greening, avoid food chain, it is to avoid the harm that Heavy Metals in Sludge is likely to result in.
3. material source is extensively, with low cost
The core matrix sludge of the present invention, polyvinyl alcohol wide material sources are easily obtained, go for industrialized production
4. light weight, drainage effect are good
The present invention selects the sludge after mummification to do material, and quality lightweight effectively reduces roof load, and substrate is made graininess has Effect solves the drainage problem on roof.
Finally it should be noted that:The invention is not restricted to the details of above-described embodiment, without prejudice to the present invention spirit or In the case of basic feature, the present invention can be realized with other concrete forms.This narrating mode of description is only clearly may be used See, those skilled in the art should description as an entirety, the concrete technical scheme in each embodiment suitably can also be tied Close, formed skilled artisans appreciate that other embodiment.

Claims (7)

1. a kind of preparation method for the new sludge cultivation matrix of roof greening, its feature is:Including following preparation process:
(1)Get the raw materials ready:With municipal sludge and polyvinyl alcohol as primary raw material, the furtherance supplemented by macromolecule resin, polyester resin, glycerol Point, with sludge organism charcoal, ethylene glycol, active hydrogen chain extender as additive, the weight ratio of each raw material:
Core matrix:80-90 parts of mummification powder sludge;
10-20 parts of polyvinyl alcohol;
Auxiliary matrix:15-25 parts of macromolecule resin;
Polyester resin(A glue:B glue=2:1)50-60 parts;
5-10 parts of glycerol;
1-2 parts of sludge organism charcoal;
1-2 parts of ethylene glycol;
1-2 parts of active hydrogen chain extender;
(2)Mixing:
Core matrix mixes:Polyvinyl alcohol suspension after heating for dissolving is mixed with powder sludge, core matrix is obtained;
Auxiliary matrix mixes:Each raw material is mixed in proportion, is sufficiently stirred for obtaining coating agent;
(3)Molding peplos:Initial pelletize is carried out to core matrix, step is used(2)The auxiliary matrix coating agent of preparation is to core base Matter peplos, and peplos 3--4 time repeatedly;
(4)Mummification:To step(3)The sludge coated granule surface drying and other treatment for obtaining, that is, obtain the light-duty resistance to compression of the requirement Granular sludge afforests cultivation matrix.
2. such as the new sludge cultivation matrix preparation method of roof greening as claimed in claim 1, it is characterised in that:Described sludge To grind the powder sludge by 20 mesh sieves after natural air drying, and moisture content is 50% or so.
3. such as the new sludge cultivation matrix preparation method of roof greening as claimed in claim 1, it is characterised in that:Prepare polyethylene During alcohol suspension, using heating in water bath, temperature control is at 90 DEG C.
4. the new sludge cultivation matrix preparation method of the roof greening as described in Claims 2 or 3, it is characterised in that:To step(3) In initial mud granule peplos peplos are rolled using disk.
5. the preparation method as described in claim 1--4 obtains the light-duty resistance to compression Granular sludge cultivation matrix of the roof greening.
6. the light-duty resistance to compression Granular sludge cultivation matrix of roof greening as claimed in claim 5, comprcssive strength are more than 10MPa, Under the conditions of saturation water, unit weight is 360--420kg/m3, unit volume water absorption rate 70%--78.5%.
7. purposes of the light-duty resistance to compression Granular sludge cultivation matrix as claimed in claim 6 as roof greening.
CN201610931616.XA 2016-10-25 2016-10-25 A kind of preparation method of sludge organism charcoal base roof greening substrate Pending CN106550796A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106542896A (en) * 2016-10-25 2017-03-29 安徽科技学院 A kind of preparation method of light-duty resistance to compression Granular sludge roof greening matrix
CN110304956A (en) * 2019-05-22 2019-10-08 淮安市博彦土木工程科学研究院有限公司 A kind of preparation method of coating method granulating planting soil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1535939A (en) * 2003-04-09 2004-10-13 陈大顺 Fertilizer coating composite, its making method and multicomponent coated granular fertilizer
CN101723718A (en) * 2008-10-31 2010-06-09 王平 Method for producing granular organic fertilizer with high content of humic acid by using municipal sludge
CN103626569A (en) * 2012-08-30 2014-03-12 北京东辰瑞丰化工有限公司 Preparation method for slow-release fertilizer
CN103787731A (en) * 2013-12-10 2014-05-14 北京东方园林股份有限公司 Novel roof greening matrix and roof greening method
CN104649806A (en) * 2013-11-21 2015-05-27 中国科学院大连化学物理研究所 Sodium alginate oligosaccharide coated slow-release fertilizer and preparation and application thereof
CN106542896A (en) * 2016-10-25 2017-03-29 安徽科技学院 A kind of preparation method of light-duty resistance to compression Granular sludge roof greening matrix

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1535939A (en) * 2003-04-09 2004-10-13 陈大顺 Fertilizer coating composite, its making method and multicomponent coated granular fertilizer
CN101723718A (en) * 2008-10-31 2010-06-09 王平 Method for producing granular organic fertilizer with high content of humic acid by using municipal sludge
CN103626569A (en) * 2012-08-30 2014-03-12 北京东辰瑞丰化工有限公司 Preparation method for slow-release fertilizer
CN104649806A (en) * 2013-11-21 2015-05-27 中国科学院大连化学物理研究所 Sodium alginate oligosaccharide coated slow-release fertilizer and preparation and application thereof
CN103787731A (en) * 2013-12-10 2014-05-14 北京东方园林股份有限公司 Novel roof greening matrix and roof greening method
CN106542896A (en) * 2016-10-25 2017-03-29 安徽科技学院 A kind of preparation method of light-duty resistance to compression Granular sludge roof greening matrix

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106542896A (en) * 2016-10-25 2017-03-29 安徽科技学院 A kind of preparation method of light-duty resistance to compression Granular sludge roof greening matrix
CN110304956A (en) * 2019-05-22 2019-10-08 淮安市博彦土木工程科学研究院有限公司 A kind of preparation method of coating method granulating planting soil
CN110304956B (en) * 2019-05-22 2021-09-24 淮安市博彦土木工程科学研究院有限公司 Preparation method of granulated planting soil by coating method

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Application publication date: 20170405