CN110922221A - Method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage - Google Patents
Method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage Download PDFInfo
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- CN110922221A CN110922221A CN201911144537.4A CN201911144537A CN110922221A CN 110922221 A CN110922221 A CN 110922221A CN 201911144537 A CN201911144537 A CN 201911144537A CN 110922221 A CN110922221 A CN 110922221A
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- Prior art keywords
- biogas residue
- biogas
- heavy metal
- earthworm
- conveyor belt
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 49
- 238000000855 fermentation Methods 0.000 title claims abstract description 41
- 230000004151 fermentation Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 47
- 241000361919 Metaphire sieboldi Species 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000003895 organic fertilizer Substances 0.000 claims description 17
- 241001233061 earthworms Species 0.000 claims description 7
- 235000015097 nutrients Nutrition 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
-
- 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
Abstract
The invention discloses a method for removing heavy metal in biogas residues after high-temperature fermentation of organic matters in household garbage, which comprises the following steps: the lower end of the anaerobic fermentation device is provided with a biogas residue outlet, the lower end of the biogas residue outlet is provided with a biogas residue discharge pipe, the biogas residue discharge pipe is connected with a biogas residue pump, the biogas residue pump is connected with a solid-liquid separation device, one side of the solid-liquid separation device is provided with a conveyor belt, the conveyor belt is communicated with a heavy metal separation device, the heavy metal separation device comprises an earthworm feeding port, a biogas residue heavy metal removal chamber and a biogas residue earthworm separation chamber, the biogas residue earthworm separation chamber is connected with a first conveyor belt, the first conveyor belt is communicated with a biogas residue bin, and one side of the residue feeding bin is connected with an adding bin.
Description
Technical Field
The invention relates to a heavy metal separation method, in particular to a method for removing heavy metal in biogas residue after high-temperature fermentation of organic matters in household garbage.
Background
The problem often encountered in the field of biogas residue compost fermentation is that the heavy metal content is high, so that the quality of the organic fertilizer is reduced, and if the organic fertilizer directly enters an agricultural system, the heavy metal can be enriched in the agricultural product body, so that adverse effects are generated on people.
The method for removing the heavy metals in the biogas residues comprises the steps of adding a stabilizer and a solution for leaching, wherein the stabilizer can enter the environment again if the environment changes after stabilization, and other substances can be taken away to reduce the nutritive value of the organic fertilizer if the solution is leached.
Disclosure of Invention
Aiming at the technical problems, the invention provides a method for removing heavy metal in biogas residues after high-temperature fermentation of organic matters in household garbage.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage comprises the following steps: an anaerobic fermentation device, the lower end of which is provided with a biogas residue outlet, the lower end of which is provided with a biogas residue discharge pipe, the biogas residue discharge pipe is connected with a biogas residue pump, the biogas residue pump is connected with a solid-liquid separation device, one side of the solid-liquid separation device is provided with a conveyor belt, the conveyor belt is communicated with a heavy metal separation device, the heavy metal separation device comprises an earthworm adding port, a biogas residue heavy metal removing chamber and a biogas residue earthworm separating chamber, the biogas residue earthworm separating chamber is connected with a first conveyor belt, the first conveyor belt is communicated with a biogas residue bin, one side of the biogas residue bin is connected with an adding bin, the outlet of the adding bin is communicated with a screw conveying device, the screw conveying device is communicated with an organic fertilizer fermentation bin, the organic fertilizer fermentation bin is connected with an automatic packing machine through a second conveyor belt on one side, the earthworm port is arranged beside the heavy metal removing chamber, the biogas residue pump is arranged on the biogas residue discharge pipe and feeds biogas residues into the solid-liquid separation device.
As a still further scheme of the invention: the anaerobic fermentation device is used for high-temperature fermentation.
As a still further scheme of the invention: the solid-liquid separation device is a spiral separation device.
As a still further scheme of the invention: the earthworm feeding port is arranged at the inlet of the biogas residue heavy metal removal chamber.
As a still further scheme of the invention: the biogas residue heavy metal removal chamber is connected with the biogas residue earthworm separation chamber.
As a still further scheme of the invention: the biogas residue earthworm separation chamber drives earthworms to leave biogas residues by light, so that the separation purpose is achieved.
As a still further scheme of the invention: the biogas residue deep processing comprises the functions of nutrient element addition, organic fertilizer fermentation and automatic packaging.
Compared with the prior art, the invention has the beneficial effects that: the method for removing the heavy metal in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage is provided with the steps of high-temperature anaerobic fermentation, solid-liquid separation, heavy metal removal and deep processing of the organic fertilizer to realize the separation of the heavy metal in the biogas residues and the deep processing industrialization of the organic fertilizer.
Drawings
FIG. 1 is a schematic diagram of the present invention.
In the figure: 1. an anaerobic fermentation device; 2. a biogas residue discharge pipe; 3. a biogas residue pump; 4. a solid-liquid separation device; 5. a conveyor belt; 6. an earthworm feeding port; 7. a biogas residue heavy metal removal chamber; 8. a biogas residue earthworm separation chamber; 9. a first conveyor belt; 10. a biogas residue bin; 11. adding a bin; 12. a screw conveyor; 13. an organic fertilizer fermentation bin; 14. a second conveyor belt; 15. an automatic packing machine; 16. an automatic conveying device.
Detailed Description
The invention is further explained in detail with reference to the attached drawings, and the method for removing heavy metal in biogas residue after high-temperature fermentation of organic matters in household garbage comprises the following steps: an anaerobic fermentation device 1, the lower end of which is provided with a biogas residue outlet, the lower end of which is provided with a biogas residue discharging pipe 2, the biogas residue discharging pipe 2 is connected with a biogas residue pump 3, the biogas residue pump 3 is connected with a solid-liquid separation device 4, one side of the solid-liquid separation device 4 is provided with a conveyor belt 5, the conveyor belt 5 is communicated with a heavy metal separation device, the heavy metal separation device comprises an earthworm adding port 6, a biogas residue heavy metal removing chamber 7 and a biogas residue earthworm separating chamber 8, the biogas residue earthworm separating chamber 8 is connected with a first conveyor belt 9, the first conveyor belt 9 is communicated with a biogas residue bin 10, one side of the biogas residue bin 10 is connected with an adding bin 11, the outlet of the adding bin 11 is communicated with a spiral conveying device 12, the spiral conveying device 12 is communicated with an organic fertilizer fermentation bin 13, the organic fertilizer fermentation bin 13 is connected with an automatic packing machine 15 through a second conveyor belt, the earthworm feeding port 6 is arranged at the side of the biogas residue heavy metal removal chamber 7, the biogas residue pump 3 is arranged on the biogas residue discharge pipe 2, biogas residues enter the solid-liquid separation device 4 through the biogas residue pump 3, the anaerobic fermentation device 1 is used for high-temperature fermentation, the solid-liquid separation device 4 is a spiral separation device, the earthworm feeding port 6 is arranged at the inlet of the biogas residue heavy metal removal chamber 7, the biogas residue heavy metal removal chamber 7 is connected with the biogas residue earthworm separation chamber 8, the biogas residue earthworm separation chamber 8 drives earthworms to leave the biogas residues by light, the separation purpose is achieved, the deep processing of the biogas residues comprises the addition of nutrient elements, the fermentation of organic fertilizers and the automatic packing function.
The working principle of the invention is as follows: an anaerobic fermentation device 1, the lower end of which is provided with a biogas residue discharge pipe 2, the biogas residue discharge pipe 2 is connected with a biogas residue pump 3, a solid-liquid separation device 4 is connected with the biogas residue pump 3, biogas residues are conveyed to the solid-liquid separation device 4 through the biogas residue pump 3, the biogas residues enter a conveyor belt 5 after solid-liquid separation, a biogas residue heavy metal removal chamber 7 is provided with an earthworm feeding port 6 beside a feeding port, earthworms are uniformly distributed in the biogas residues in the biogas residue heavy metal removal chamber 7 along with the forward conveying of the conveyor belt 5, the earthworms enter a biogas residue earthworm separation chamber 8 after being fully eaten, the earthworms are separated by auxiliary means such as light and the like, the heavy metal content in the biogas residues is reduced, the earthworms and the biogas residues enter a first conveyor belt 9 after being separated, enter a biogas residue bin 10 along with the first conveyor belt 9, are mixed with nutrient elements added in an addition bin 11 containing nutrient elements and then enter an organic fertilizer fermentation bin 13, the method for removing the heavy metal in the biogas residues after the organic matters in the household garbage are fermented at high temperature comprises the steps of high-temperature anaerobic fermentation, solid-liquid separation, heavy metal removal and organic fertilizer deep processing, so that the separation of the heavy metal in the biogas residues is realized, and the industrialization of the organic fertilizer deep processing is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (7)
1. A method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage is characterized by comprising the following steps: an anaerobic fermentation device, the lower end of which is provided with a biogas residue outlet, the lower end of which is provided with a biogas residue discharge pipe, the biogas residue discharge pipe is connected with a biogas residue pump, the biogas residue pump is connected with a solid-liquid separation device, one side of the solid-liquid separation device is provided with a conveyor belt, the conveyor belt is communicated with a heavy metal separation device, the heavy metal separation device comprises an earthworm adding port, a biogas residue heavy metal removing chamber and a biogas residue earthworm separating chamber, the biogas residue earthworm separating chamber is connected with a first conveyor belt, the first conveyor belt is communicated with a biogas residue bin, one side of the biogas residue bin is connected with an adding bin, the outlet of the adding bin is communicated with a screw conveying device, the screw conveying device is communicated with an organic fertilizer fermentation bin, the organic fertilizer fermentation bin is connected with an automatic packing machine through a second conveyor belt on one side, the earthworm port is arranged beside the heavy metal removing chamber, the biogas residue pump is arranged on the biogas residue discharge pipe and feeds biogas residues into the solid-liquid separation device.
2. The method for removing the heavy metals in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the anaerobic fermentation device is used for high-temperature fermentation.
3. The method for removing the heavy metal in the biogas residue after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the solid-liquid separation device is a spiral separation device.
4. The method for removing the heavy metal in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the earthworm adding port is arranged at an inlet of the biogas residue heavy metal removing chamber.
5. The method for removing the heavy metal in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the biogas residue heavy metal removal chamber is connected with a biogas residue earthworm separation chamber.
6. The method for removing the heavy metals in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the earthworm separation chamber drives the earthworms to leave the biogas residues by light so as to achieve the separation purpose.
7. The method for removing the heavy metals in the biogas residues after the high-temperature fermentation of the organic matters in the household garbage according to claim 1, wherein the deep processing of the biogas residues comprises the functions of nutrient element addition, organic fertilizer fermentation and automatic packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144537.4A CN110922221A (en) | 2019-11-20 | 2019-11-20 | Method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911144537.4A CN110922221A (en) | 2019-11-20 | 2019-11-20 | Method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage |
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| Publication Number | Publication Date |
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| CN110922221A true CN110922221A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911144537.4A Pending CN110922221A (en) | 2019-11-20 | 2019-11-20 | Method for removing heavy metals in biogas residues after high-temperature fermentation of organic matters in household garbage |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733170A1 (en) * | 1995-04-21 | 1996-10-25 | Gillot Marcel | Composting of organic waste using cultures of worms |
| CN102001805A (en) * | 2010-11-30 | 2011-04-06 | 张丽 | Method for treating heavy metal sludge of sewage treatment plant by using earthworm |
| CN202139229U (en) * | 2011-06-13 | 2012-02-08 | 宁波环邦生物科技有限公司 | Integrated production system for methane and biological organic fertilizer |
| CN108339833A (en) * | 2018-02-11 | 2018-07-31 | 青岛科亮生物工程有限公司 | A kind of liquid and waste slag produced processing method of Industrial Metal |
| CN109503224A (en) * | 2018-12-24 | 2019-03-22 | 南京农业大学 | Heavy metal removing method and application in a kind of biogas residue |
| CN211522049U (en) * | 2019-11-20 | 2020-09-18 | 河南恒天久大实业有限公司 | Biogas residue heavy metal removing device after high-temperature fermentation of organic matters in household garbage |
-
2019
- 2019-11-20 CN CN201911144537.4A patent/CN110922221A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2733170A1 (en) * | 1995-04-21 | 1996-10-25 | Gillot Marcel | Composting of organic waste using cultures of worms |
| CN102001805A (en) * | 2010-11-30 | 2011-04-06 | 张丽 | Method for treating heavy metal sludge of sewage treatment plant by using earthworm |
| CN202139229U (en) * | 2011-06-13 | 2012-02-08 | 宁波环邦生物科技有限公司 | Integrated production system for methane and biological organic fertilizer |
| CN108339833A (en) * | 2018-02-11 | 2018-07-31 | 青岛科亮生物工程有限公司 | A kind of liquid and waste slag produced processing method of Industrial Metal |
| CN109503224A (en) * | 2018-12-24 | 2019-03-22 | 南京农业大学 | Heavy metal removing method and application in a kind of biogas residue |
| CN211522049U (en) * | 2019-11-20 | 2020-09-18 | 河南恒天久大实业有限公司 | Biogas residue heavy metal removing device after high-temperature fermentation of organic matters in household garbage |
Non-Patent Citations (1)
| Title |
|---|
| 陈婕;张安龙;: "蚯蚓处理重金属的毒理学研究启示", 环境科技, no. 06, pages 27 - 29 * |
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