CN105819589A - Method for removing biogas slurry odor - Google Patents
Method for removing biogas slurry odor Download PDFInfo
- Publication number
- CN105819589A CN105819589A CN201610204970.2A CN201610204970A CN105819589A CN 105819589 A CN105819589 A CN 105819589A CN 201610204970 A CN201610204970 A CN 201610204970A CN 105819589 A CN105819589 A CN 105819589A
- Authority
- CN
- China
- Prior art keywords
- biogas slurry
- ferrate
- biogas
- stink
- reaction tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The invention discloses a method for removing biogas slurry odor. The method comprises the following steps: (1) firstly coarsely filtering through a mechanical grid, separating biogas residues from biogas slurry and introducing the biogas slurry into a reaction tank; (2) adding ferrate into the reaction tank and performing oxidation and deodorization; (3) introducing the biogas slurry into a settling tank to settle after oxidation treatment; (4) adding a bacteriostatic agent to prevent bacteria reproduction from regenerating the odor. According to the method disclosed by the invention, by utilization of the oxidation, flocculation and anti-virus effects of the ferrate, the purposes of deodorizing the biogas slurry, killing harmful bacteria and removing part of heavy metals are realized; through adding the bacteriostatic agent, the bacteria reproduction is prevented from re-generating the odor in the processes of transportation and storage, so that the defect existing in the biogas slurry purification treatment can be effectively overcome.
Description
Technical field
The present invention relates to a kind of method removing biogas slurry stink, belong to utilization of waste as resource technical field.
Background technology
Biogas slurry is the raw material such as crop material and human and animal excreta organic residue after methane-generating pit anaerobic fermentation, biogas slurry contains the nutrient of various plants growth, containing abundant nitrogen, phosphorus, potassium, each amino acid, vitamin, protein, gibberellins, auxin, saccharide, nucleic acid and antibiotic etc..Nutrient in biogas slurry is to exist with available nutrient state, so the quick-acting nutritious ability of biogas slurry is strong, Nutrient availability is high, is rare polynary quick-acting liquid fertilizers.Biogas slurry has good effect in seed soaking and arable farming, has obtained the accreditation of a lot of scholar and vast farmers.
But biogas slurry self has sizable pungent odour, ecological environment can be caused severe contamination；Biogas slurry there is also a large amount of harmful levels of pathogens, heavy metal, greatly limit its popularization and application.Therefore, how by biogas slurry deodorization and disinfection so that it is environment is not impacted, it is the key of the recycling of biogas slurry.
Chinese patent " CN102923883A " discloses the minimizing technology of stink substance in a kind of biogas slurry, form associated with ozonation aerated oxidizing process and powder electroless plating method is used to remove the stink substance in biogas slurry, but the method processes the biogas slurry Powdered Activated Carbon needing 4kg ozone, 2.5kg per ton, processing cost is high, and energy consumption is the highest.Chinese patent " CN102390891A " discloses extraction and removes the method for volatility organic odoriferous material in biogas slurry, use chloroform and petroleum ether extraction, the volatility organic odoriferous material in biogas slurry is eliminated on the premise of not affecting biogas slurry fertilizer efficiency, however it is necessary that and extraction is repeated in airtight container, technique is more complicated, and petroleum ether is inflammable and explosive, it is difficult to realize industrialization truly and run.
There is the problems such as cost height, complex process in existing biogas slurry deodorization technology, and does not considers the harm that environment is caused by harmful microorganism in biogas slurry, heavy metal.
Summary of the invention
For deficiencies of the prior art, the method that it is an object of the invention to provide a kind of processing cost removal biogas slurry stink low, easy and simple to handle.
The present invention overall technology design be: utilize ferrate oxidation, flocculate, kill virus oxidation such as hydrogen sulfide (H2S), methanthiol (CH3SH), dimethyl sulfide ((CH3)2S), ammonia (NH3) etc. odorant, kill noxious bacteria, adsorption and sedimentation part heavy metal, and prevent bacteriological aftergrowth by adding antibacterial simultaneously.
Technical scheme is made up of following process steps:
(1) by mechanical grille coarse filtration so that biogas slurry separately, and is introduced in reaction tank by biogas residue and biogas slurry；
(2) in reaction tank, add ferrate, carry out aoxidizing deodorization；
(3) after oxidation processes, biogas slurry is introduced sedimentation tank sedimentation；
(4) add antibacterial, prevent bacterial reproduction from again producing stink.
The concrete technology step of the present invention and process conditions are:
(1) by mechanical grille coarse filtration so that biogas slurry separately, and is introduced in reaction tank by biogas residue and biogas slurry；
(2) adding the ferrate of biogas slurry quality 0.001%-0.02% in reaction tank, stirring makes ferrate be sufficiently mixed with biogas slurry, and the response time is 5-60min, carries out aoxidizing deodorization；
(3), after oxidation processes, biogas slurry is introduced sedimentation tank and stops 4-10 hour, remove oil removal；
(4) biogas slurry after processing adds the antibacterial of biogas slurry quality 0.001%-0.02%%, prevents antibacterial
Breeding produces stink again.
Described ferrate is potassium ferrate or Na2Fe04, and its addition is the 0.001%-0.02% of biogas slurry quality.
Described antibacterial is 2-bromo-2-nitro-1.3-propylene glycol, and its addition is the 0.001%-0.02%% of biogas slurry quality.
Technological progress acquired by the present invention is:
The present invention utilize ferrate oxidation, flocculate, virus killing effect achieves biogas slurry deodorization, kill noxious bacteria, remove the purpose of part heavy metal, and bacterial reproduction produces stink again during being prevented transport by interpolation antibacterial and stored, it is possible to the drawback that effectively the current biogas slurry purified treatment of solution exists.
Utilize the present invention to remove biogas slurry stink to have the advantage that
(1) additive amount of medicament is few, processing cost is low, easy and simple to handle；
(2) metal ion of part in biogas slurry can be removed, reduce environmental pollution；
(3) major part noxious bacteria can be killed；
(4) during being possible to prevent transport and storing, bacterial reproduction produces stink again.
Detailed description of the invention
In conjunction with detailed description of the invention, that the present invention is further illustrated is as follows:
Embodiment one: a kind of method removing biogas slurry stink, step is:
(1) by mechanical grille coarse filtration so that biogas slurry separately, and is introduced in reaction tank by biogas residue and biogas slurry；
(2) adding the ferrate of biogas slurry quality 0.004% in reaction tank, stirring makes ferrate be sufficiently mixed with biogas slurry, and the response time is 60min, carries out aoxidizing deodorization；
(3), after oxidation processes, biogas slurry is introduced sedimentation tank and stops 8 hours, remove oil removal；
(4) biogas slurry after processing adds the antibacterial of biogas slurry quality 0.01%%, prevents bacterial reproduction again
Produce stink.
Biogas slurry after former biogas slurry and process is carried out Analysis of Nutritive Composition, and result is as shown in table 1:
Biogas slurry after former biogas slurry and process is carried out microorganism detection, and result is as shown in table 2:
Biogas slurry after former biogas slurry and process is carried out heavy metal analysis, and result is as shown in table 3:
Biogas slurry after processing is sampled, takes 600ml sample and be sub-packed in two clean containers, seal；Sample is placed in 20 degree of calorstats, sees whether after 14 days to produce stink.
Result: do not smell pungent odour.
After biogas slurry is processed by the method using the present invention, effectively remove the stink substance in biogas slurry, kill major part antibacterial, eliminate part heavy metal, and be prevented from bacterial reproduction and again produce stink, expand its range of application.
Claims (3)
1. the method removing biogas slurry stink, it is characterised in that: the method is realized by following processing step:
(1) by mechanical grille coarse filtration so that biogas slurry separately, and is introduced in reaction tank by biogas residue and biogas slurry；
(2) adding the ferrate of biogas slurry quality 0.001%-0.02% in reaction tank, stirring makes ferrate be sufficiently mixed with biogas slurry, and the response time is 5-60min, carries out aoxidizing deodorization；
(3), after oxidation processes, biogas slurry is introduced sedimentation tank and stops 4-10 hour, remove oil removal；
(4) biogas slurry after processing adds the antibacterial of biogas slurry quality 0.001%-0.02%%, prevents bacterial reproduction from again producing stink.
A kind of method removing biogas slurry stink the most according to claim 1, it is characterised in that: described ferrate is potassium ferrate or Na2Fe04, and its addition is the 0.001%-0.02% of biogas slurry quality.
A kind of method removing biogas slurry stink the most according to claim 1, it is characterised in that: described antibacterial is 2-bromo-2-nitro-1.3-propylene glycol, and its addition is the 0.001%-0.02% of biogas slurry quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204970.2A CN105819589A (en) | 2016-04-05 | 2016-04-05 | Method for removing biogas slurry odor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204970.2A CN105819589A (en) | 2016-04-05 | 2016-04-05 | Method for removing biogas slurry odor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105819589A true CN105819589A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610204970.2A Pending CN105819589A (en) | 2016-04-05 | 2016-04-05 | Method for removing biogas slurry odor |
Country Status (1)
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| CN (1) | CN105819589A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642460A (en) * | 2019-09-19 | 2020-01-03 | 济南大学 | Method for removing nitrogen and phosphorus by ferrate enhanced denitrification phosphorus removal biological filter |
| WO2020133892A1 (en) * | 2018-12-25 | 2020-07-02 | 同济大学 | Method for controlling pipe corrosion and odor |
| CN113321560A (en) * | 2021-06-01 | 2021-08-31 | 仲恺农业工程学院 | Method and device for producing efficient organic liquid fertilizer by utilizing biogas slurry |
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| CN101954105A (en) * | 2010-09-16 | 2011-01-26 | 宁波工程学院 | Method for removing odor of feces and urine of animals and poultry through oxidation |
| CN102068895A (en) * | 2010-12-15 | 2011-05-25 | 中山大学 | Method for treating odorous gas by utilizing solution of hexavalent ferric salt |
| CN102390891A (en) * | 2011-08-10 | 2012-03-28 | 吉林农业大学 | Method for removing volatile organic malodorous substances from biogas slurry by using extraction method |
| CN102923883A (en) * | 2012-11-07 | 2013-02-13 | 西安建筑科技大学 | Method for removing stink materials in biogas slurry |
| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
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| CN104973735A (en) * | 2015-07-02 | 2015-10-14 | 黄山时泰环保科技有限公司 | Municipal sludge biogas slurry treatment method |
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2016
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| KR20030037810A (en) * | 2001-11-06 | 2003-05-16 | 주식회사 제이슨컨설턴트 | Water resuing system |
| CN101954105A (en) * | 2010-09-16 | 2011-01-26 | 宁波工程学院 | Method for removing odor of feces and urine of animals and poultry through oxidation |
| CN102068895A (en) * | 2010-12-15 | 2011-05-25 | 中山大学 | Method for treating odorous gas by utilizing solution of hexavalent ferric salt |
| CN102390891A (en) * | 2011-08-10 | 2012-03-28 | 吉林农业大学 | Method for removing volatile organic malodorous substances from biogas slurry by using extraction method |
| CN103536950A (en) * | 2012-07-13 | 2014-01-29 | 烟台荣和环保能源有限公司 | Iron-series high-efficiency deodorant |
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| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020133892A1 (en) * | 2018-12-25 | 2020-07-02 | 同济大学 | Method for controlling pipe corrosion and odor |
| CN110642460A (en) * | 2019-09-19 | 2020-01-03 | 济南大学 | Method for removing nitrogen and phosphorus by ferrate enhanced denitrification phosphorus removal biological filter |
| CN113321560A (en) * | 2021-06-01 | 2021-08-31 | 仲恺农业工程学院 | Method and device for producing efficient organic liquid fertilizer by utilizing biogas slurry |
| CN113321560B (en) * | 2021-06-01 | 2022-11-08 | 仲恺农业工程学院 | Method and device for producing efficient organic liquid fertilizer by utilizing biogas slurry |
| WO2022253359A1 (en) * | 2021-06-01 | 2022-12-08 | 仲恺农业工程学院 | Method for producing high-efficiency organic liquid fertilizer by using biogas slurry and apparatus therefor |
| GB2611696A (en) * | 2021-06-01 | 2023-04-12 | Univ Zhongkai Agri & Eng | Method for producing high-efficiency organic liquid fertilizer by using biogas slurry and apparatus therefor |
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Application publication date: 20160803 |