CN111116247A - Method for preparing bio-organic fertilizer from wool washing sludge and application - Google Patents
Method for preparing bio-organic fertilizer from wool washing sludge and application Download PDFInfo
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- CN111116247A CN111116247A CN201911395864.7A CN201911395864A CN111116247A CN 111116247 A CN111116247 A CN 111116247A CN 201911395864 A CN201911395864 A CN 201911395864A CN 111116247 A CN111116247 A CN 111116247A
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- Prior art keywords
- wool washing
- organic
- bio
- washing sludge
- fertilizer
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- 210000002268 wool Anatomy 0.000 title claims abstract description 74
- 238000005406 washing Methods 0.000 title claims abstract description 69
- 239000010802 sludge Substances 0.000 title claims abstract description 66
- 239000003895 organic fertilizer Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000003337 fertilizer Substances 0.000 claims abstract description 37
- 239000004166 Lanolin Substances 0.000 claims abstract description 9
- 229940039717 lanolin Drugs 0.000 claims abstract description 9
- 235000019388 lanolin Nutrition 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000010865 sewage Substances 0.000 claims abstract description 9
- 238000000855 fermentation Methods 0.000 claims description 49
- 230000004151 fermentation Effects 0.000 claims description 36
- 239000000654 additive Substances 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 238000000108 ultra-filtration Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007858 starting material Substances 0.000 claims description 7
- 241000894006 Bacteria Species 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 6
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 5
- 241001465754 Metazoa Species 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 102000004169 proteins and genes Human genes 0.000 claims description 5
- 108090000623 proteins and genes Proteins 0.000 claims description 5
- 235000010413 sodium alginate Nutrition 0.000 claims description 5
- 239000000661 sodium alginate Substances 0.000 claims description 5
- 229940005550 sodium alginate Drugs 0.000 claims description 5
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 5
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 5
- 235000019698 starch Nutrition 0.000 claims description 5
- 239000008107 starch Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 239000002068 microbial inoculum Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 8
- 239000013589 supplement Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000021049 nutrient content Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 235000010855 food raising agent Nutrition 0.000 description 1
- 239000011361 granulated particle Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- -1 organic acid salts Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a method for preparing a bio-organic fertilizer by using wool washing sludge and application thereof. The method of the invention fully utilizes the residual value of the wool washing sewage to obtain a large amount of lanolin and can generate corresponding economic benefits. The sludge is used for preparing fertilizer, and the value of the organic matters rich in the sludge is fully exerted. The method is simple, and the prepared liquid concentrated fertilizer and granular fertilizer are used as supplement parts of other organic fertilizers or matrixes, so that the method has remarkable economic and environmental benefits.
Description
Technical Field
The invention relates to a method for preparing a bio-organic fertilizer by using wool washing sludge and application thereof.
Technical Field
The wool spinning industry in China belongs to the labor-intensive industry and plays an important role in national economic life in China. But the waste water produced by the wool spinning industry is also quite surprising and the harm to the environment is obvious while great profit is obtained. In order to treat the waste water and change waste into valuable, many researchers have conducted intensive research on the waste water. The wool washing sewage contains various impurities on the body of sheep, wherein wool fat (mainly fatty acid, high molecular alcohol and a cool complex mixture) sweat, (which is composed of various organic acid salts and inorganic salts and is easily dissolved in water), solid impurities (mainly dust sand, plant grass thorn and other impurities) and the like are mainly contained. The organic matter content is rich in general, so that the sludge obtained after the wastewater is precipitated is made into organic fertilizer which is extremely beneficial to the growth of crops.
Disclosure of Invention
In order to solve the problems and achieve the purpose, the invention provides a method for preparing a bio-organic fertilizer by using wool washing sludge. The specific technical scheme is as follows:
a method for preparing a bio-organic fertilizer by using wool washing sludge comprises the following steps:
1) purifying and precipitating: removing most of lanolin from sewage led from a wool washing workshop by an ultrafiltration method, and then adding a flocculating agent to obtain wool washing sludge;
2) primary fermentation: conveying the wool washing sludge obtained in the step 1) into a fermentation area for primary fermentation, conveying the obtained fermentation liquor to a concentration treatment process, and conveying the biogas residues into a post-fermentation process;
3) concentration treatment: squeezing, filtering and reverse osmosis are carried out on the fermentation liquor after primary fermentation to obtain wool washing sludge concentrated solution, and a proper amount of organic bio-fertilizer additive is added to obtain wool washing sludge liquid organic fertilizer;
4) and (3) after-fermentation: adding primary fermentation bacteria into the primarily fermented biogas residues, uniformly stirring, and further decomposing and fermenting to obtain a wool washing sludge fermented material;
5) and (3) granulation: and adding an organic bio-fertilizer additive into the wool washing sludge fermented material obtained through post-fermentation, adding a proper amount of water, granulating in a fertilizer granulator, and drying to obtain the wool washing sludge solid organic fertilizer.
In a preferable technical scheme, in the step 1), the aperture of an ultrafiltration membrane used in the ultrafiltration method is 0.001-0.2 μm, so that more than 95% of lanolin can be removed; the flocculant is an organic flocculant.
In a further preferable technical scheme, the organic flocculant is one or more of starch, protein, animal glue, sodium alginate and sodium carboxymethylcellulose.
In a preferable technical scheme, in the step 2), the primary fermentation is sludge self-fermentation under an anoxic environment.
In a preferable technical scheme, in the step 3), the addition amount of the organic bio-fertilizer additive is 5-10 wt% of the weight of the wool washing sludge concentrated solution.
In a preferable technical scheme, in the step 4), the primary fermentation inoculum is a commercial organic fertilizer fermentation agent, and the total number of effective viable bacteria is required to be more than 100 hundred million/gram.
According to a further preferable technical scheme, the adding amount of the organic fertilizer leavening agent is 1-2 wt% of the weight of the wool washing sludge biogas residue.
In a preferable technical scheme, in the step 5), the addition amount of the organic bio-fertilizer additive is 2-6 wt% of the weight of the wool washing sludge fermentation material.
Preferably, in the step 5), the granulated particles have a particle size of 1 to 5 mm.
The biological organic fertilizer prepared by the method is mainly used as an organic supplementary component of other organic fertilizers or matrixes.
Has the advantages that:
the method of the invention fully utilizes the residual value of the wool washing sewage, firstly obtains a large amount of lanolin by an ultrafiltration technology, and can generate corresponding economic benefit after further processing. Most importantly, the invention changes the sludge in the wool washing water into valuable and gives full play to the value of the organic matters rich in the wool washing water. The method is simple, the value is high, and the prepared liquid concentrated fertilizer and granular fertilizer are used as supplement parts of other organic fertilizers or matrixes, so that the nutrient contents of the organic fertilizers and the matrixes are greatly enriched, and the growth of plants is facilitated. In addition, the characteristic of changing waste into valuable is that the invention has obvious economic and environmental benefits.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
Example 1
The embodiment is to prepare a bio-organic fertilizer prepared from wool washing sludge, and the method comprises the following steps:
1) purifying and precipitating: removing most of lanolin from sewage led from a wool washing workshop by an ultrafiltration method, and then adding a flocculating agent to obtain wool washing sludge; the aperture of the ultrafiltration membrane used by the ultrafiltration method is 0.001 mu m, and more than 95 percent of lanolin can be removed; the added flocculating agent is an organic flocculating agent, and in order to improve the flocculation effect, the organic flocculating agent is a mixture of starch, protein and animal glue. A large amount of a single organic flocculant may also be added. The organic flocculant can be sodium alginate or sodium carboxymethylcellulose besides starch, protein and animal glue
2) Primary fermentation: the wool washing sludge obtained in the step 1) is transported into a fermentation area for primary fermentation, namely, the sludge is fermented by itself under an anoxic environment to obtain a fermentation liquid which is sent to a concentration treatment process, and the biogas residues are sent to a post-fermentation process.
3) Concentration treatment: squeezing, filtering and reverse osmosis are carried out on the fermentation liquor after primary fermentation to obtain wool washing sludge concentrated solution, and a proper amount of organic bio-fertilizer additive is added to obtain wool washing sludge liquid organic fertilizer; the addition amount of the organic bio-fertilizer additive is 5wt% of the weight of the wool washing sludge concentrated solution.
4) And (3) after-fermentation: adding primary fermentation bacteria into the primarily fermented biogas residues, uniformly stirring, and further decomposing and fermenting to obtain a wool washing sludge fermented material; the primary fermentation microbial inoculum is a commercial organic fertilizer starter, the total number of effective viable bacteria is required to be more than 100 hundred million/g, and the addition amount of the organic fertilizer starter is 1wt% of the weight of the wool washing sludge biogas residue.
5) And (3) granulation: and adding an organic bio-fertilizer additive into the wool washing sludge fermented material obtained through post-fermentation, adding a proper amount of water, granulating in a fertilizer granulator, and drying to obtain the wool washing sludge solid organic fertilizer. The addition amount of the organic bio-fertilizer additive is 2wt% of the weight of the wool washing sludge fermentation material. The particle size of the granules is 1 mm.
Example 2
The embodiment also prepares a bio-organic fertilizer prepared by wool washing sludge, and the method is the same as the embodiment 1, except that:
1) the aperture of the ultrafiltration membrane used for purifying, precipitating and washing wool sewage is 0.05 mu m; the flocculant is a mixture of animal glue, sodium alginate and sodium carboxymethylcellulose.
2) The concentration treatment process adds an organic bio-fertilizer additive into the wool sludge liquid organic fertilizer, and the addition amount of the organic bio-fertilizer additive is 8wt% of the weight of the wool washing sludge concentrated solution.
3) In the post-fermentation stage, an organic fertilizer starter is added into the wool washing sludge fermentation material, and the addition amount of the organic fertilizer starter is 1.5wt% of the weight of the wool washing sludge biogas residue.
4) In the granulation stage, adding an organic bio-fertilizer into the wool washing sludge fermentation material, wherein the adding amount of the organic bio-fertilizer is 4wt% of the weight of the wool washing sludge fermentation material; the grain size of the produced fertilizer is 3 mm.
Example 3
The embodiment also prepares a bio-organic fertilizer prepared from wool washing sludge, and the method is the same as the embodiment 1, except that:
1) the aperture of the ultrafiltration membrane used for purifying, precipitating and washing wool sewage is 0.2 mu m; the flocculant is a mixture of starch, protein, sodium alginate and sodium carboxymethylcellulose.
2) The concentration treatment process adds 10wt% of organic bio-fertilizer additive into the wool sludge liquid organic fertilizer.
3) In the post-fermentation stage, an organic fertilizer starter is added into the wool washing sludge fermentation material, and the addition amount of the organic fertilizer starter is 2wt% of the weight of the wool washing sludge biogas residue.
4) In the granulation stage, the addition amount of the organic bio-fertilizer is 6wt% of the weight of the wool washing sludge fermentation material; the grain size of the produced fertilizer is 5 mm.
Example 4
In the embodiment, the matrix prepared in the embodiments 1 to 3 is used for preparing an organic fertilizer, and is mainly used as a nutrition supplement part of the organic fertilizer, and the recommended addition amount is 20 to 80 g of the product of the invention added to each kilogram of the organic fertilizer. The organic fertilizer can be used for preparing organic fertilizer and also can be used for preparing matrix, and the dosage of the organic fertilizer can be 100-200 g of the product of the invention added in each kilogram of matrix
The method of the invention fully utilizes the residual value of the wool washing sewage, firstly obtains a large amount of lanolin by an ultrafiltration technology, and can generate corresponding economic benefit after further processing. Most importantly, the invention changes the sludge in the wool washing water into valuable and gives full play to the value of the organic matters rich in the wool washing water. The method is simple, the value is high, and the prepared liquid concentrated fertilizer and granular fertilizer are used as supplement parts of other organic fertilizers or matrixes, so that the nutrient contents of the organic fertilizers and the matrixes are greatly enriched, and the growth of plants is facilitated. In addition, the characteristic of changing waste into valuable is that the invention has obvious economic and environmental benefits.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A method for preparing a bio-organic fertilizer by using wool washing sludge is characterized by comprising the following steps: the method comprises the following steps:
1) purifying and precipitating: removing most of lanolin from sewage led from a wool washing workshop by an ultrafiltration method, and then adding a flocculating agent to obtain wool washing sludge;
2) primary fermentation: conveying the wool washing sludge obtained in the step 1) into a fermentation area for primary fermentation, conveying the obtained fermentation liquor to a concentration treatment process, and conveying the biogas residues into a post-fermentation process;
3) concentration treatment: squeezing, filtering and reverse osmosis are carried out on the fermentation liquor after primary fermentation to obtain wool washing sludge concentrated solution, and a proper amount of organic bio-fertilizer additive is added to obtain wool washing sludge liquid organic fertilizer;
4) and (3) after-fermentation: adding primary fermentation bacteria into the primarily fermented biogas residues, uniformly stirring, and further decomposing and fermenting to obtain a wool washing sludge fermented material;
5) and (3) granulation: and adding an organic bio-fertilizer additive into the wool washing sludge fermented material obtained through post-fermentation, adding a proper amount of water, granulating in a fertilizer granulator, and drying to obtain the wool washing sludge solid organic fertilizer.
2. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 1), the aperture of an ultrafiltration membrane used in the ultrafiltration method is 0.001-0.2 mu m, and more than 95% of lanolin can be removed; the flocculant is an organic flocculant.
3. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 3, wherein the method comprises the following steps: the organic flocculant is one or more of starch, protein, animal glue, sodium alginate or sodium carboxymethylcellulose.
4. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 2), the primary fermentation is sludge self-fermentation in an anoxic environment.
5. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 3), the addition amount of the organic bio-fertilizer additive is 5-10 wt% of the weight of the wool washing sludge concentrated solution.
6. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 4), the primary fermentation microbial inoculum is a commercial organic fertilizer fermentation agent, and the total number of effective viable bacteria is required to be more than 100 hundred million/g.
7. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 7, wherein the method comprises the following steps: the adding amount of the organic fertilizer starter is 1-2 wt% of the weight of the wool washing sludge biogas residue.
8. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 5), the addition amount of the organic bio-fertilizer additive is 2-6 wt% of the weight of the wool washing sludge fermentation material.
9. The method for preparing the bio-organic fertilizer by using wool washing sludge as claimed in claim 1, wherein the method comprises the following steps: in the step 5), the grain size of the granules is 1-5 mm.
10. The application of the bio-organic fertilizer prepared by the method of claims 1-9 is characterized in that: the biological organic fertilizer is mainly used as an organic supplementary component of other organic fertilizers or matrixes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395864.7A CN111116247A (en) | 2019-12-30 | 2019-12-30 | Method for preparing bio-organic fertilizer from wool washing sludge and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911395864.7A CN111116247A (en) | 2019-12-30 | 2019-12-30 | Method for preparing bio-organic fertilizer from wool washing sludge and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111116247A true CN111116247A (en) | 2020-05-08 |
Family
ID=70505193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911395864.7A Pending CN111116247A (en) | 2019-12-30 | 2019-12-30 | Method for preparing bio-organic fertilizer from wool washing sludge and application |
Country Status (1)
| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216699A (en) * | 1983-05-26 | 1984-12-06 | Sankyo Yuki Kk | Sludge dehydrating method |
| CN103739330A (en) * | 2014-01-22 | 2014-04-23 | 无锡希洁环保技术有限公司 | Method for producing organic fertilizer through wool washing wastewater |
-
2019
- 2019-12-30 CN CN201911395864.7A patent/CN111116247A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59216699A (en) * | 1983-05-26 | 1984-12-06 | Sankyo Yuki Kk | Sludge dehydrating method |
| CN103739330A (en) * | 2014-01-22 | 2014-04-23 | 无锡希洁环保技术有限公司 | Method for producing organic fertilizer through wool washing wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 杨志勇 等: "《农村房屋建设抗震节能实用技术》", 30 June 2013 * |
| 郭宇杰: "《工业废水处理工程》", 31 October 2016 * |
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