CN107266140A - A kind of method for the organic slow-release fertilizer that utilization municipal sludge makes - Google Patents
A kind of method for the organic slow-release fertilizer that utilization municipal sludge makes Download PDFInfo
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- CN107266140A CN107266140A CN201710361866.9A CN201710361866A CN107266140A CN 107266140 A CN107266140 A CN 107266140A CN 201710361866 A CN201710361866 A CN 201710361866A CN 107266140 A CN107266140 A CN 107266140A
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- sludge
- release fertilizer
- organic slow
- raw material
- municipal sludge
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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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
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
Present invention relates particularly to a kind of method that utilization municipal sludge makes organic slow-release fertilizer, by the way that by sludge volume, the auxiliary material of addition 30%~45% stirs and evenly mixs, obtains sludge raw material；Leavening is added in sludge raw material and is sufficiently stirred for mixing, fermentation process 8 10 days；The sludge raw material drying fermented processing is dried to water content below 30%, then irradiated 10 12 hours by ultraviolet, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；Inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；Organic slow-release fertilizer feedstock transportation to granulating disc is granulated, granulated carry out redrying, dried to water content below 10%, organic slow-release fertilizer is made after cooling, screening；This method technique is simple, with low cost, and can realize the recycling of municipal sludge.
Description
Technical field
Present invention relates particularly to a kind of method that utilization municipal sludge makes organic slow-release fertilizer.
Background technology
With fast-developing and urban life level the continuous improvement of China's economic society, people are to improving and beautifying the environment
Demand it is more and more urgent, the upsurges of city forest constructions are risen in many places, and a large amount of new greening land flowers can be found everywhere；And garden
The seed of forest needs to purchase organic fertilizer again in planting, and containing substantial amounts of organic matter, heavy metal and pathogen etc. in municipal sludge, if not
Plus any discharge is handled, serious pollution, in recent years, the harmful heavy metal content in China's municipal sludge can be caused to environment
It has been be decreased obviously that, it is its preferable Land use systems that Garden Greenland will be applied to after Treatment of Sludge, sludge is used for gardens and cultivated not
Chemical fertilizer has only been saved, cultivation cost is reduced, has been that sludge have found more preferable recycling outlet；And it avoids food chain,
Health is not interfered with, this is with regard to a kind of method that can be combined both of exigence.
Grant number discloses a kind of utilization municipal sludge for CN104478587A Chinese patent and makes organic slow-release fertilizer
Method, this method complex process, fermentation time is long, is unfavorable for putting into industrialized production.
The content of the invention
In order to overcome deficiency of the prior art, the present invention provides the side that a kind of utilization municipal sludge makes organic slow-release fertilizer
Method, this method technique is simple, with low cost, and can realize the recycling of municipal sludge.
In order to realize foregoing invention purpose, present invention employs following technical scheme：
A kind of method that utilization municipal sludge makes organic slow-release fertilizer, comprises the following steps：
(1) sludge volume is pressed, the auxiliary material of addition 30%~45% stirs and evenly mixs, obtains sludge raw material；
(2) leavening is added in above-mentioned sludge raw material and is sufficiently stirred for mixing, fermentation process 8-10 days；
(3) by the sludge raw material drying fermented processing, dry to water content below 30%, then by ultraviolet irradiation
10-12 hours, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；
(4) inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；
(5) organic slow-release fertilizer feedstock transportation to granulating disc is granulated, granulated carry out redrying, dried to containing
Below water 10%, organic slow-release fertilizer is made after cooling, screening.
Preferably, auxiliary material is the one or more in stalk, flyash, leaf mould in step (1).
Preferably, leavening includes lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bud in step (2)
Born of the same parents bacillus, Bacillus subtillis；It is the lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, withered
Careless bacillus quantity ratio is 1：1：1：1：1.
Preferably, sludge grain particle diameter is less than 10mm in step (3).
Preferably, inorganic raw material is one kind in silicate, aluminate, borate, phosphate, germanate in step (4)
Or it is several.
Preferably, drying temperature is 120-180 DEG C in step (5), and drying time is 2-3 hours.
Beneficial effect, the technique is simple, and cost is low；Heat can be produced during the fermentation, and temperature can reach 60 DEG C
More than, most of worm's ovum in sludge, bacterium and without external heat source can be killed, energy consumption is both saved, sludge can also be carried out
Minimizing；Using ultraviolet irradiation-sterilize, secondary sterilization utterly destroys worm's ovum in sludge, bacterium.Present invention process is simple,
It is with low cost, and the recycling of municipal sludge can be realized.
Embodiment
The present invention is further described in detail with reference to specific embodiment, but is not limited to this.
Embodiment 1
A kind of method that utilization municipal sludge makes organic slow-release fertilizer, comprises the following steps：
(1) sludge volume is pressed, the auxiliary material of addition 30% stirs and evenly mixs, obtains sludge raw material；
(2) leavening is added in above-mentioned sludge raw material and is sufficiently stirred for mixing, fermentation process 10 days；
(3) by the sludge raw material drying fermented processing, dry to water content below 30%, then by ultraviolet irradiation 12
Hour, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；
(4) inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；
(5) organic slow-release fertilizer feedstock transportation to granulating disc is granulated, is transported to granulating disc granulation, it is granulated
Redrying is carried out, is dried to water content below 10%, organic slow-release fertilizer is made after cooling, screening.
Auxiliary material is volume ratio 1 in step (1)：1：1 stalk, flyash, leaf mould.
In step (2) leavening include lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus,
Bacillus subtillis；The lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, Ko subtilis bar
Bacterium number amount ratio is 1：1：1：1：1.
Sludge grain particle diameter is less than 10mm in step (3).
Inorganic raw material is germanate in step (4).
Drying temperature is 180 DEG C in step (5), and drying time is 2 hours.
Embodiment 2
A kind of method that utilization municipal sludge makes organic slow-release fertilizer, comprises the following steps：
(1) sludge volume is pressed, the auxiliary material of addition 45% stirs and evenly mixs, obtains sludge raw material；
(2) leavening is added in above-mentioned sludge raw material and is sufficiently stirred for mixing, fermentation process 8 days；
(3) by the sludge raw material drying fermented processing, dry to water content below 30%, then by ultraviolet irradiation 10
Hour, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；
(4) inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；
(5) organic slow-release fertilizer feedstock transportation to granulating disc is granulated, granulated carry out redrying, dried to containing
Below water 10%, organic slow-release fertilizer is made after cooling, screening.
Auxiliary material is stalk in step (1).
In step (2) leavening include lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus,
Bacillus subtillis；The lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, Ko subtilis bar
Bacterium number amount ratio is 1：1：1：1：1.
Sludge grain particle diameter is less than 10mm in step (3).
Inorganic raw material is that mass ratio is 1 in step (4)：2：1 silicate, aluminate, borate.
Drying temperature is 120 DEG C in step (5), and drying time is 3 hours.
Embodiment 3
A kind of method that utilization municipal sludge makes organic slow-release fertilizer, comprises the following steps：
(1) sludge volume is pressed, the auxiliary material of addition 40% stirs and evenly mixs, obtains sludge raw material；
(2) leavening is added in above-mentioned sludge raw material and is sufficiently stirred for mixing, fermentation process 9 days；
(3) by the sludge raw material drying fermented processing, dry to water content below 30%, then by ultraviolet irradiation 11
Hour, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；
(4) inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；
(5) organic slow-release fertilizer feedstock transportation to granulating disc is granulated, granulated carry out redrying, dried to containing
Below water 10%, organic slow-release fertilizer is made after cooling, screening.
Auxiliary material is that volume ratio is 1 in step (1)：1 leaf mould, stalk.
In step (2) leavening include lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus,
Bacillus subtillis；The lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, Ko subtilis bar
Bacterium number amount ratio is 1：1：1：1：1.
Sludge grain particle diameter is less than 10mm in step (3).
Inorganic raw material is silicate in step (4).
Drying temperature is 150 DEG C in step (5), and drying time is 2.5 hours.
Organic slow-release fertilizer prepared by embodiment 1-3 carries out fertilizer efficiency contrast experiment with comparative example common inorganic fertilizer, in experiment
Vegetable seeds is peppermint seed, and sowing season is spring, and every group of sowing quantity is 100, and rate of fertilizer 120 kg/mu is planted
Plant three months, as a result such as following table：
| Survival rate (%) | Germinating time (my god) | Bar height (cm) | |
| Embodiment 1 | 98 | 7 | 16 |
| Embodiment 2 | 98 | 8 | 16 |
| Embodiment 3 | 99 | 6 | 18 |
| Comparative example | 94 | 10 | 14 |
Test result indicates that：Compared with applying same amount of inorganic fertilizer, organic slow-release fertilizer has clear advantage, improves and plants
Thing survival rate, shortens plant growing cycle, improves the yield of plant；And the organic slow-release fertilizer preparation technology of the present invention is simple, into
This is cheap, realizes the recycling of municipal sludge.
Claims (6)
1. a kind of method that utilization municipal sludge makes organic slow-release fertilizer, it is characterised in that comprise the following steps：
(1) sludge volume is pressed, the auxiliary material of addition 30%~45% stirs and evenly mixs, obtains sludge raw material；
(2) leavening is added in above-mentioned sludge raw material and is sufficiently stirred for mixing, fermentation process 8-10 days；
(3) by the sludge raw material drying fermented processing, dry to water content below 30%, then 10-12 is irradiated by ultraviolet
Hour, with screen cloth is crossed after pulverizer or crusher in crushing, sludge grain is made；
(4) inorganic raw material is added in sludge grain, is uniformly mixed, obtains organic slow-release fertilizer raw material；
(5) organic slow-release fertilizer feedstock transportation to granulating disc is granulated, granulated carry out redrying, dried to water content
Less than 10%, organic slow-release fertilizer is made after cooling, screening.
2. auxiliary material is in the method that a kind of utilization municipal sludge according to claim 1 makes organic slow-release fertilizer, step (1)
One or more in perlite, vermiculite, flyash, leaf mould.
3. leavening in the method that a kind of utilization municipal sludge according to claim 1 makes organic slow-release fertilizer, step (2)
Including lactobacillus bulgaricus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, Bacillus subtillis；The Bao Jiali
Sub- lactobacillus, streptococcus thermophilus, saccharomycete, damp and hot fatty bacillus, Bacillus subtillis quantity ratio are 1：1：1：1：1.
4. sludge grain in the method that a kind of utilization municipal sludge according to claim 1 makes organic slow-release fertilizer, step (3)
Particle diameter is less than 10mm.
5. inorganic original in the method that a kind of utilization municipal sludge according to claim 1 makes organic slow-release fertilizer, step (4)
Expect for the one or more in silicate, aluminate, borate, phosphate, germanate.
6. dry temperature in the method that a kind of utilization municipal sludge according to claim 1 makes organic slow-release fertilizer, step (5)
Spend for 120-180 DEG C, drying time is 2-3 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361866.9A CN107266140A (en) | 2017-05-22 | 2017-05-22 | A kind of method for the organic slow-release fertilizer that utilization municipal sludge makes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710361866.9A CN107266140A (en) | 2017-05-22 | 2017-05-22 | A kind of method for the organic slow-release fertilizer that utilization municipal sludge makes |
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| CN107266140A true CN107266140A (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710361866.9A Pending CN107266140A (en) | 2017-05-22 | 2017-05-22 | A kind of method for the organic slow-release fertilizer that utilization municipal sludge makes |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442393A (en) * | 2002-03-05 | 2003-09-17 | 李波 | Method of producing composite organic fertilizer using city sludge |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN1923759A (en) * | 2006-09-18 | 2007-03-07 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN101575227A (en) * | 2009-06-17 | 2009-11-11 | 北京美华博大环境工程有限公司 | Method for manufacturing organic fertilizer by utilizing sludge |
| CN101781131A (en) * | 2010-02-11 | 2010-07-21 | 厦门水务集团有限公司 | Sludge composting method |
| CN102260104A (en) * | 2011-05-20 | 2011-11-30 | 烟台大学 | Method for producing biological organic fertilizer by fermenting sludge |
| CN104478587A (en) * | 2014-12-15 | 2015-04-01 | 马新亚 | Sludge organic fertilizer and preparation method thereof |
| CN105036882A (en) * | 2015-06-18 | 2015-11-11 | 安徽徽普生物科技有限责任公司 | Fermentation fertilizer additive comprising sludge |
-
2017
- 2017-05-22 CN CN201710361866.9A patent/CN107266140A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442393A (en) * | 2002-03-05 | 2003-09-17 | 李波 | Method of producing composite organic fertilizer using city sludge |
| CN1793073A (en) * | 2005-11-15 | 2006-06-28 | 青岛地恩地生物科技有限公司 | Process for mfg. biological organic fertilizer by urban mud |
| CN1923759A (en) * | 2006-09-18 | 2007-03-07 | 广东省农业科学院土壤肥料研究所 | Refined fertilizer produced from sludge and producing method thereof |
| CN101575227A (en) * | 2009-06-17 | 2009-11-11 | 北京美华博大环境工程有限公司 | Method for manufacturing organic fertilizer by utilizing sludge |
| CN101781131A (en) * | 2010-02-11 | 2010-07-21 | 厦门水务集团有限公司 | Sludge composting method |
| CN102260104A (en) * | 2011-05-20 | 2011-11-30 | 烟台大学 | Method for producing biological organic fertilizer by fermenting sludge |
| CN104478587A (en) * | 2014-12-15 | 2015-04-01 | 马新亚 | Sludge organic fertilizer and preparation method thereof |
| CN105036882A (en) * | 2015-06-18 | 2015-11-11 | 安徽徽普生物科技有限责任公司 | Fermentation fertilizer additive comprising sludge |
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Application publication date: 20171020 |