CN107010805A - The technique of heavy metal in a kind of removal fowl and animal excrement - Google Patents
The technique of heavy metal in a kind of removal fowl and animal excrement Download PDFInfo
- Publication number
- CN107010805A CN107010805A CN201710251670.4A CN201710251670A CN107010805A CN 107010805 A CN107010805 A CN 107010805A CN 201710251670 A CN201710251670 A CN 201710251670A CN 107010805 A CN107010805 A CN 107010805A
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- CN
- China
- Prior art keywords
- fowl
- heavy metal
- animal excrement
- magnetic
- adsorbent
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Links
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 90
- 241001465754 Metazoa Species 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003463 adsorbent Substances 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 20
- 238000004064 recycling Methods 0.000 claims abstract description 3
- 210000003608 fece Anatomy 0.000 claims description 22
- 239000010871 livestock manure Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 7
- 230000002745 absorbent Effects 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 4
- 229910052906 cristobalite Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 230000009920 chelation Effects 0.000 claims description 2
- 239000011258 core-shell material Substances 0.000 claims description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 2
- 230000002045 lasting effect Effects 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000005554 pickling Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- -1 amino Chemical group 0.000 claims 1
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 230000011987 methylation Effects 0.000 claims 1
- 238000007069 methylation reaction Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 description 20
- 239000010949 copper Substances 0.000 description 20
- 229910052725 zinc Inorganic materials 0.000 description 17
- 239000011701 zinc Substances 0.000 description 17
- 244000144977 poultry Species 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 244000144972 livestock Species 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 239000011669 selenium Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000006078 metal deactivator Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
Abstract
The technique of heavy metal in a kind of removal fowl and animal excrement, belongs to heavy metal processing and comprehensive reutilization technical field.The removal technique of heavy metal in its oxidation for including fowl and animal excrement and fowl and animal excrement；The present invention can use high-temperature air oxidation, can discharge the heavy metal chelated with organo-functional group in fowl and animal excrement, improve the ratio shared by available heavy metal；The present invention removes heavy metal using magnetic heavy metal adsorbent, can efficiently, quickly, thoroughly remove the heavy metal in fowl and animal excrement, and can realize the recovery and recycling of adsorbent.The present invention can reach low cost, purpose that is quick, efficiently and thoroughly removing heavy metal in fowl and animal excrement.
Description
Technical field
The present invention relates to the removal technique of heavy metal in fowl and animal excrement, belong to heavy metal processing and comprehensive reutilization technology
Field, available for fowl and animal excrement of the improvement containing heavy metal.
Background technology
With the development of modern agriculture, compartmentalizations are presented in many national livestock culture industry, scale, specialization, intensive
The characteristics of operation, China also turns into an intensive culture big country.With the fast development of China's livestock and poultry cultivation industry, animal dung
Just it is a large amount of to produce.Promote the element of crop growth in fowl and animal excrement containing substantial amounts of nitrogen, phosphorus etc., fowl and animal excrement is that potentiality are larger
Organic fertilizer resource, entered after processing, available for agricultural production, increase soil fertility, purifying ecological environment.
With the development of science and technology, feed becomes the Major Nutrient source of fowl and animal excrement in modern aquaculture industry, feed
It is useful in a universal phenomenon in large-scale cultivation.In order to promote growing for poultry, at present, most domestic enterprise exists
The heavy metal elements such as copper, zinc, selenium, the arsenic of high dose are generally added in feed, typically in complete feed copper reach 200~
300mg/kg, selenium reaches 0.30~0.50mg/kg, as the concentrated feed of distinct Chinese characteristics, copper content therein up to 1000~
1500mg/kg, in 1% premix, the content of copper reaches 2000~3000mg/kg.The heavy metal elements such as substantial amounts of copper and zinc
By metabolism cycle, a part is deposited in animal body tissue, and 90% heavy metal is excluded in vitro, remains in manure of livestock and poultry
Just in.Heavy metal is added by feed, and --- --- poultry excretion --- fertilized soil --- crop absorbs this way for poultry absorption
Footpath enters human foods chain, so as to influence human health by human consumption.At present, compost is that processing fowl and animal excrement is mainly preferable
Method, but it can only make heavy metal deposition, it is impossible to remove the heavy metal in excrement.《Chinese agriculture science and technology Leader》2014
3 phases volume 14《China's feces of livestock and poultry heavy metal pollution state and its passivation Study on Measures progress》（Documents 1）In one text, report
Road is in composting process, and by adding heavy metal deactivator come heavy metal-passivated, but this measure can not reach removal
The effect of heavy metal, the heavy metal after passivation is still remained in fowl and animal excrement, and through after a period of time, heavy metal can quilt
Release, can still be polluted to ecological environment.
The content of the invention
The problem of in order to solve to there is heavy metal in fowl and animal excrement, the invention provides a kind of effective, process cycle
It is short, the heavy metal handling process of heavy metal in the removable fowl and animal excrement of high treating effect, and the weight used in the process
Metal absorbent can be reused.
The present invention includes fowl and animal excrement oxidation and heavy metals removal technique to solve the technical scheme that its problem is used,
Described fowl and animal excrement oxidation technology uses high-temperature air oxidation, discharges what is chelated with organo-functional group in fowl and animal excrement
Heavy metal；
Heavy metals removal technique removes weight using addition magnetic heavy metal adsorbent and by the way of stirring in described fowl and animal excrement
Metal.
Further, described fowl and animal excrement oxidation technology, its step includes：
1）Fowl and animal excrement is crushed 2~10 times using pulverizer；
2）By step 1）In fowl and animal excrement be put into container, lasting stirring is carried out to it using mechanical agitation；
3）In step 2）Under conditions of, using water-bath to step 2）In fowl and animal excrement be heated to 40~80 DEG C；
4）In step 3）Under conditions of, 4~10h is aerated into fowl and animal excrement using aerator；
Further, heavy metals removal technique in described fowl and animal excrement, its step includes：
1）Stop after heating and aeration, magnetic heavy metal adsorbent is added into the fowl and animal excrement after oxidation；
2）Using mechanical agitation to step 1）In fowl and animal excrement persistently stir 2~4h；
3）Using magnetic separating device by step 2）Magnetic heavy metal adsorbent in fowl and animal excrement is reclaimed.
Further, the heavy metal absorbent used in described fowl and animal excrement in heavy metals removal technique is coated with inside
Fe3O4SiO2Particle is as core shell structure, by surface modification in shell SiO2Upper introducing amino, then carry out on amino carboxylic
Methylate and obtain-CH2CH2-N-(CH2COO-)2.- the CH on its surface2CH2-N-(CH2COO-)2Functional group can with fowl and animal excrement
Heavy metal occur chelation, absorption fowl and animal excrement in heavy metal.The Fe of cladding inside magnetic heavy metal adsorbent3O4Tool
It is magnetic, it is possible to use magnetic separating device isolates the heavy metal absorbent after Adsorption of Heavy Metals from fowl and animal excrement, so that
The heavy metal removed in fowl and animal excrement is reached, while under the heavy metal adsorbed on heavy metal absorbent can be eluted by pickling
Come, so as to realize the recycling of heavy metal absorbent.Using magnetic heavy metal adsorbent, it is possible to achieve a huge sum of money in fowl and animal excrement
The removal of category, high treating effect, process cycle is short, recoverable.
The technical solution adopted by the present invention, mainly has the following effects：
1）Using high-temperature air oxidation, the heavy metal chelated with organo-functional group in fowl and animal excrement can be discharged, poultry is improved
Ratio in excrement shared by available heavy metal, is conducive to the removal of heavy metal；
2）The present invention can realize the removal of heavy metal in fowl and animal excrement, fundamentally solve in fowl and animal excrement heavy metal to life
The pollution of state environment；
3）The present invention uses air oxidation, reduces cost, it is to avoid the introducing of chemical reagent；
4）The PROCESS FOR TREATMENT cycle that the present invention is used is short, has preferable removal effect to the heavy metal in fowl and animal excrement；
5）The present invention can be reused to magnetic heavy metal adsorbent, improve resource utilization.
Embodiment
With reference to embodiment, the present invention is further illustrated
Embodiment one
1st, the oxidation of fowl and animal excrement
1）1000g pig manures are taken, pig manure is ground 2 times using fiberizer；
2）Take the pig manure 300g after grinding to be added in three-necked flask, three-necked flask is put into water-bath, heating water bath to 40
℃；
3）The pig manure in three-necked flask is quickly stirred using mechanical stirring device；
4）At 40 DEG C, 4h is aerated into three-necked flask using aerator while stirring.
2nd, the removal of fowl and animal excrement heavy metal
5）Stop heating and be aerated, the pig manure after oxidation is poured into beaker, 8g magnetic heavy metal adsorbents is weighed and is added to burning
In cup；
6）Using mechanical agitation to step 5）In fowl and animal excrement persistently stir 2h；
7）Using magnet by step 6）Magnetic heavy metal adsorbent in pig manure is reclaimed.
Embodiment two
1st, the oxidation of fowl and animal excrement
1）1000g pig manures are taken, pig manure is ground 10 times using fiberizer；
2）Take the pig manure 300g after grinding to be added in three-necked flask, three-necked flask is put into water-bath, heating water bath to 80
℃；
3）The pig manure in three-necked flask is quickly stirred using mechanical stirring device；
4）At 80 DEG C, 10h is aerated into three-necked flask using aerator while stirring.
2nd, the removal of fowl and animal excrement heavy metal
The step 5 of step be the same as Example 1）~7）.
Embodiment three
1st, the oxidation of fowl and animal excrement
The step 1 of step be the same as Example 2）~4）；
2nd, the removal of fowl and animal excrement heavy metal
5）Stop heating and be aerated, the pig manure after oxidation is poured into beaker, 8g magnetic heavy metal adsorbents is weighed and is added to burning
In cup；
6）Using mechanical agitation to step 5）In fowl and animal excrement persistently stir 4h；
7）Using magnet by step 6）Magnetic heavy metal adsorbent in pig manure is reclaimed.
Experimental result
Cu and Zn total amount and available state detects that Cu and Zn total amount are respectively in pig manure after to being aoxidized in embodiment 1
1000mg/kg and 2000mg/kg, available state is respectively 400mg/kg and 1000mg/kg；After heavy metals removal in embodiment 1
Pig manure in Cu and Zn total amount detected that Cu and Zn total amount is respectively 900mg/kg and 1600mg/kg, Cu and Zn's goes
Except rate is respectively 10% and 20%.
Cu and Zn total amount and available state is tested in pig manure after to being aoxidized in embodiment 2, Cu and Zn total amount point
Not Wei 1000mg/kg and 2000mg/kg, available state is respectively 900mg/kg and 1700mg/kg；Heavy metal in embodiment 2 is gone
Cu and Zn total amount is detected in pig manure after removing, and Cu and Zn total amount is respectively 750mg/kg and 1300mg/kg, Cu and Zn
Clearance be respectively 25% and 35%.
Cu and Zn total amount and available state is tested in pig manure after to being aoxidized in embodiment 3, Cu and Zn total amount point
Not Wei 1000mg/kg and 2000mg/kg, available state is respectively 900mg/kg and 1700mg/kg；Heavy metal in embodiment 3 is gone
Cu and Zn total amount is detected in pig manure after removing, and Cu and Zn total amount is respectively 600mg/kg and 1000mg/kg, Cu and Zn
Clearance be respectively 40% and 50%.
The organo-functional group of some in fowl and animal excrement can be aoxidized by air oxidation, made originally by organic official in fowl and animal excrement
The heavy metal that chelating can be rolled into a ball is released, and improves the content of the available state of heavy metal, is added after magnetic heavy metal adsorbent, is inhaled
Attached dose is combined with available heavy metal, and heavy metal in fowl and animal excrement is removed so as to reach by reclaiming adsorbent.
Certainly, better embodiment of the present invention is these are only, the use scope of the present invention is not limited with this, therefore, it is every
Equivalent change is made in the principle of the invention to should be included within the scope of the present invention.
Claims (7)
1. a kind of removal technique for removing heavy metal in fowl and animal excrement, it is characterised in that including：Fowl and animal excrement oxidation technology and fowl
Animal manure just middle heavy metals removal technique；
Described fowl and animal excrement oxidation technology uses high-temperature air oxidation, discharges what is chelated with organo-functional group in fowl and animal excrement
Heavy metal；
Heavy metals removal technique removes weight using addition magnetic heavy metal adsorbent and by the way of stirring in described fowl and animal excrement
Metal.
2. fowl and animal excrement oxidation technology according to claim 1, its step includes：
Fowl and animal excrement is crushed 2~10 times using pulverizer；
By step 1）In fowl and animal excrement be put into container, lasting stirring is carried out to it using mechanical agitation；
In step 2）Under conditions of, using water-bath to step 2）In fowl and animal excrement be heated to 40~80 DEG C；
In step 3）Under conditions of, 4~10h is persistently aerated into fowl and animal excrement using aerator.
3. heavy metals removal technique in fowl and animal excrement according to claim 1, its step includes：
1）Stop after heating and aeration, magnetic heavy metal adsorbent is added into the fowl and animal excrement after oxidation；
2）Using mechanical agitation to step 1）In fowl and animal excrement persistently stir 2~4h；
3）Using magnetic separating device by step 2）Magnetic heavy metal adsorbent in fowl and animal excrement is reclaimed.
4. heavy metals removal technique in fowl and animal excrement according to claim 3, its magnetic heavy metal adsorbent used is special
Levy and be it with inside cladding Fe3O4SiO2Particle is as core shell structure, by surface modification in shell SiO2Upper introducing ammonia
Base, then progress carboxy methylation obtains-CH on amino2CH2-N-(CH2COO-)2。
5. the magnetic heavy metal adsorbent according to claim 4 ,-CH on its surface2CH2-N-(CH2COO-)2Functional group can
Occurs the heavy metal in chelation, absorption fowl and animal excrement with the heavy metal in fowl and animal excrement.
6. magnetic heavy metal adsorbent according to claim 4, the Fe of inside cladding3O4With magnetic, it is possible to use magnetic point
The heavy metal absorbent after Adsorption of Heavy Metals is isolated from fowl and animal excrement from device, so as to reach in removal fowl and animal excrement
Heavy metal.
7. magnetic heavy metal adsorbent according to claim 4, it is characterised in that can will be adsorbed by pickling in heavy metal
Heavy metal on adsorbent is eluted, so as to realize the recycling of heavy metal absorbent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251670.4A CN107010805B (en) | 2017-04-18 | 2017-04-18 | Process for removing heavy metals in livestock and poultry manure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251670.4A CN107010805B (en) | 2017-04-18 | 2017-04-18 | Process for removing heavy metals in livestock and poultry manure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107010805A true CN107010805A (en) | 2017-08-04 |
| CN107010805B CN107010805B (en) | 2020-08-18 |
Family
ID=59448196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251670.4A Expired - Fee Related CN107010805B (en) | 2017-04-18 | 2017-04-18 | Process for removing heavy metals in livestock and poultry manure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107010805B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724057A (en) * | 2017-09-30 | 2018-02-23 | 莆田学院 | A kind of magnetic hydrogen peroxide bleaching stabilizer preparation method and its application in bleaching process |
| CN113004090A (en) * | 2021-04-27 | 2021-06-22 | 新至农业生态科技有限公司 | Soil conditioner prepared from livestock and poultry manure and preparation method thereof |
| CN113511926A (en) * | 2021-04-28 | 2021-10-19 | 新至农业生态科技有限公司 | Method for comprehensively utilizing livestock and poultry manure resources and returning to field |
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| CN101575164A (en) * | 2009-06-05 | 2009-11-11 | 朱世友 | Multi-function high-efficiency livestock and poultry excrement treating device |
| CN204220614U (en) * | 2014-11-11 | 2015-03-25 | 武汉都市环保工程技术股份有限公司 | Organic matter and thermal sensitivity heavy-metal contaminated soil thermal desorption prosthetic device |
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| CN105817469A (en) * | 2015-01-09 | 2016-08-03 | 武汉中地金盾环境科技有限公司 | Magnetic separation purifying treatment technology for removing heavy metal pollution of soil |
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- 2017-04-18 CN CN201710251670.4A patent/CN107010805B/en not_active Expired - Fee Related
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| CN101575164A (en) * | 2009-06-05 | 2009-11-11 | 朱世友 | Multi-function high-efficiency livestock and poultry excrement treating device |
| CN204220614U (en) * | 2014-11-11 | 2015-03-25 | 武汉都市环保工程技术股份有限公司 | Organic matter and thermal sensitivity heavy-metal contaminated soil thermal desorption prosthetic device |
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| CN107724057A (en) * | 2017-09-30 | 2018-02-23 | 莆田学院 | A kind of magnetic hydrogen peroxide bleaching stabilizer preparation method and its application in bleaching process |
| CN113004090A (en) * | 2021-04-27 | 2021-06-22 | 新至农业生态科技有限公司 | Soil conditioner prepared from livestock and poultry manure and preparation method thereof |
| CN113511926A (en) * | 2021-04-28 | 2021-10-19 | 新至农业生态科技有限公司 | Method for comprehensively utilizing livestock and poultry manure resources and returning to field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107010805B (en) | 2020-08-18 |
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