CN103482749B - Pig-farm wastewater treatment agent and application thereof - Google Patents
Pig-farm wastewater treatment agent and application thereof Download PDFInfo
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- CN103482749B CN103482749B CN201310365438.5A CN201310365438A CN103482749B CN 103482749 B CN103482749 B CN 103482749B CN 201310365438 A CN201310365438 A CN 201310365438A CN 103482749 B CN103482749 B CN 103482749B
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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
- 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
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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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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of pig-farm wastewater treatment agent and application thereof.Pig-farm wastewater treatment agent of the present invention is polymerized fatty acid aluminium, and its general formula is: [Al
2(OH)
n(C
xh
2x+1cOOH)
6-n]
m, wherein n is selected from the integer of 1-5, and m is selected from the integer of 2-10, and x is selected from the integer of 1-4.The present invention be directed to the feature of pig-farm wastewater and develop, flocculating effect is good, and consumption is few, and processing efficiency is high, and flocculation physical efficiency floats rapidly, facilitates mud to be separated with clear water.
Description
Technical field
The present invention relates to technical field of sewage, particularly a kind of pig-farm wastewater treatment agent and application thereof.
Background technology
Along with the fast development of China's economic society, China's aquaculture is also developed rapidly.Hangzhou Xiaoshan district Large-scale pig farm breeding stock reaches 2,000,000; Pig farm more than Zhejiang Province's scale in 2012 reaches family more than 2700, also has the super-huge Large-scale pig farm of raising scale more than 100,000.Large-scale cultivation industry, providing abundant meat, egg, milk and goods thereof to while meeting people's living needs to town dweller, also causes serious pollution threat to environment.The industrial solid castoff of China in 2002 is only 9.45 hundred million tons, and feces of livestock and poultry generation just reaches 27.5 hundred million tons then, is 2.91 times of industrial solid castoff total amount.Wherein pig manure is 12.9 hundred million tons, accounts for 46.91% of feces of livestock and poultry total amount.
The flocculation agent that current animal farm wastewater process generally adopts aluminum chloride, iron(ic) chloride etc. conventional, the treatment time is long, and consumption is large, and processing efficiency is low, and flocculating effect is not good yet, and meanwhile, the mud after flocculation treatment sinks to bottom, and mud is separated inconvenience with clear water.
The disclosure of the invention of CN102992463A is for a kind of slaughterhouse wastewater flocculation agent, composed of the following components by mass parts: ligninsulfonate-acrylamide copolymer 10 ~ 20, poly-phosphorus muriate 2 ~ 6, polysilicate 10 ~ 15, polyaluminum sulfate iron(ic) chloride 3 ~ 5.Polysilicate of the present invention is aluminium silicate polymer or according to ferric metasilicate, described poly-phosphorus muriate is office's phosphorus aluminum chloride or poly-phosphorus iron(ic) chloride.For pig-farm wastewater, this flocculation agent still exists that the treatment time is long, and processing efficiency is low, and flocculating effect is not good yet, and meanwhile, the mud after flocculation treatment sinks to bottom, and mud is separated the defect of inconvenience with clear water.
Summary of the invention
The object of the present invention is to provide a kind of pig-farm wastewater treatment agent, it is feature for pig-farm wastewater and develops, and flocculating effect is good, and consumption is few, and processing efficiency is high, and flocculation physical efficiency floats rapidly, facilitates mud to be separated with clear water.
Present invention also offers the application of pig-farm wastewater treatment agent.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of pig-farm wastewater treatment agent, described pig-farm wastewater treatment agent is polymerized fatty acid aluminium, and its general formula is: [Al
2(OH)
n(C
xh
2x+1cOOH)
6-n]
m, wherein n is selected from the integer of 1-5, and m is selected from the integer of 2-10, and x is selected from the integer of 1-4.
M is more than 10, and polymkeric substance is excessive, and the flocs unit of formation cannot float rapidly, is unfavorable for follow-up separation.X is selected from the integer of 1-4, i.e. C
xh
2x+1cOOH unit is short chain fatty acid, and such polymkeric substance is relatively lighter, and flocs unit is comparatively light, can float rapidly, convenient separation.
Pig-farm wastewater treatment agent of the present invention: molecular weight is comparatively large, electric charge is higher, is high molecular water treating chemical that is organic and inorganic combination.The pig-farm wastewater being applicable to very much high organic content uses, and can be combined rapidly by the dirt in pig-farm wastewater, forms flocs unit, floats rapidly, convenient separation; Flocculating effect is good, and consumption is few, and processing efficiency is high.
As preferably, the preparation method of described pig-farm wastewater treatment agent is: by Al (OH)
3with the mol ratio of short chain fatty acid according to 1:1.1-1.2, at vanadium oxytrichloride as catalyzer, temperature 80-85 DEG C, under pressure 1.5-2MPa, reaction 1-2 hour.Pig-farm wastewater treatment agent of the present invention, adopt high-temperature and high-pressure conditions, and select specific vanadium oxytrichloride as catalyzer, reaction efficiency is high, and synthetic effect is good.
As preferably, described short chain fatty acid is selected from the one in formic acid, acetic acid, propionic acid, isopropylformic acid, butyric acid, isovaleric acid, valeric acid.
As preferably, the consumption of described catalyzer is Al (OH)
30.5-1mol%.
A kind of application of pig-farm wastewater treatment agent, described application is specially: pig house former pig manure water out, be separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion is through anaerobically fermenting, stratification after anaerobically fermenting, upper strata is liquid, lower floor is mud, lower floor's mud is separated by solid-liquid separating machine, solid part is as organic fertilizer raw material, supernatant liquid after liquid portion and anaerobically fermenting is mixed to form pending liquid and carries out flocculation treatment in the lump, the pig-farm wastewater treatment agent of 0.5-5kg is added in pending liquid per ton, stir 10-30s, leave standstill 60-70s, then by upper strata mud and lower floor's liquid separation, upper strata mud is separated through solid-liquid separating machine, solid part is as organic fertilizer raw material.
The add-on controlling pig-farm wastewater treatment agent is add 0.5-5kg in the supernatant liquid after anaerobically fermenting per ton, and flocculating effect is good, and consumption is few, and processing efficiency is high, can be combined rapidly by the dirt in pig-farm wastewater, forms flocs unit, floats rapidly, is conveniently separated.The consumption of pig-farm wastewater treatment agent is relevant with the COD value of waste water, and the COD value of waste water is higher, and the consumption of pig-farm wastewater treatment agent is larger.Be can be uniformly dispersed in sewage by rapid stirring pig-farm wastewater treatment agent and play flocculating effect, after leaving standstill in short-term, flocs unit, floats rapidly, and processing efficiency is high.
As preferably, the COD value of former pig manure water is at 8000-30000, and the COD value of the supernatant liquid after anaerobically fermenting is at 2000-15000.
The invention has the beneficial effects as follows: pig-farm wastewater treatment agent molecular weight of the present invention is comparatively large, electric charge is higher, is high molecular water treating chemical that is organic and inorganic combination.The pig-farm wastewater being applicable to very much high organic content uses, and can be combined rapidly by the dirt in pig-farm wastewater, forms flocs unit, floats rapidly, convenient separation; Flocculating effect is good, and consumption is few, and processing efficiency is high.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
In the present invention, if not refer in particular to, the raw material adopted and equipment etc. all can be buied from market or this area is conventional.Method in following embodiment, if no special instructions, is the ordinary method of this area.
Embodiment 1:
After pig house cleaning, (COD value is at 8000-30000 for former pig manure water out, different clear excrement modes, different calendar variations is larger), be separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion is through anaerobically fermenting (routine techniques), stratification after anaerobically fermenting, upper strata is liquid (about 80%, ), lower floor is mud (about 20%), lower floor's mud is separated by solid-liquid separating machine, solid part is as organic fertilizer raw material, (COD value is at 2000-15000 for supernatant liquid after liquid portion and anaerobically fermenting, different clear excrement modes, different calendar variations is larger) be mixed to form pending liquid and carry out flocculation treatment in the lump, 0.5-5kg(COD value is added 2000 in pending liquid per ton, with 0.5kg) pig-farm wastewater treatment agent, stir 10s, leave standstill 60s, then by upper strata mud and lower floor's liquid separation (first discharged water by bottom and put the mode energy sharp separation of mud again), upper strata mud is separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion can carry out further purifying treatment.
Pig-farm wastewater treatment agent is polymerized fatty acid aluminium, and its general formula is:
[Al
2(OH)
n(C
xh
2x+1cOOH)
6-n]
m, wherein n is selected from the integer of 1-5, and m is selected from the integer of 2-10, and x is selected from the integer of 1-4.
In the present embodiment, polymerized fatty acid aluminium specifically can be n=1, x=1, m=10.
Embodiment 2:
After pig house cleaning, (COD value is at 8000-30000 for former pig manure water out, different clear excrement modes, different calendar variations is larger), be separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion is through anaerobically fermenting (routine techniques), stratification after anaerobically fermenting, upper strata is liquid (about 80%, ), lower floor is mud (about 20%), lower floor's mud is separated by solid-liquid separating machine, solid part is as organic fertilizer raw material, supernatant liquid (COD value is at 2000-15000) after liquid portion and anaerobically fermenting is mixed to form pending liquid and carries out flocculation treatment in the lump, 0.5-5kg(COD value is added 15000 in pending liquid per ton, with 5kg) pig-farm wastewater treatment agent, stir 30s, leave standstill 70s, then by upper strata mud and lower floor's liquid separation (first discharged water by bottom and put the mode energy sharp separation of mud again), upper strata mud is separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion can carry out further purifying treatment.
Pig-farm wastewater treatment agent is polymerized fatty acid aluminium, and its general formula is:
[Al
2(OH)
n(C
xh
2x+1cOOH)
6-n]
m, wherein n is selected from the integer of 1-5, and m is selected from the integer of 2-10, and x is selected from the integer of 1-4.
In the present embodiment, polymerized fatty acid aluminium specifically can be n=5, x=2, m=5.
Embodiment 3:
After pig house cleaning, (COD value is at 8000-30000 for former pig manure water out, different clear excrement modes, different calendar variations is larger), be separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion is through anaerobically fermenting (routine techniques), stratification after anaerobically fermenting, upper strata is liquid (about 80%, ), lower floor is mud (about 20%), lower floor's mud is separated by solid-liquid separating machine, solid part is as organic fertilizer raw material, supernatant liquid (COD value is at 2000-15000) after liquid portion and anaerobically fermenting is mixed to form pending liquid and carries out flocculation treatment in the lump, 0.5-5kg(COD value is added 10000 in pending liquid per ton, with 3kg) pig-farm wastewater treatment agent, stir 20s, leave standstill 65s, then by upper strata mud and lower floor's liquid separation (first discharged water by bottom and put the mode energy sharp separation of mud again), upper strata mud is separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion can carry out further purifying treatment.
Pig-farm wastewater treatment agent is polymerized fatty acid aluminium, and its general formula is:
[Al
2(OH)
n(C
xh
2x+1cOOH)
6-n]
m, wherein n is selected from the integer of 1-5, and m is selected from the integer of 2-10, and x is selected from the integer of 1-4.
In the present embodiment, polymerized fatty acid aluminium specifically can be n=3, x=4, m=4.
The preparation method of above-mentioned pig-farm wastewater treatment agent is: by Al (OH)
3with the mol ratio of short chain fatty acid (one in formic acid, acetic acid, propionic acid, isopropylformic acid, butyric acid, isovaleric acid, valeric acid) according to 1:1.1-1.2, at vanadium oxytrichloride as catalyzer, temperature 80-85 DEG C, under pressure 1.5-2MPa, reaction 0.5-1 hour.
Its physico-chemical property of pig-farm wastewater treatment agent of the present invention is as follows:
Proportion d=1.3 ~ 1.5; Light brown transparent liquid, soluble in water; PH≤3.0.
Above-described embodiment is one of the present invention preferably scheme, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technical scheme described in claim.
Claims (2)
1. a pig-farm wastewater treatment agent, is characterized in that: its preparation method is: by Al (OH)
3with the mol ratio of short chain fatty acid according to 1:1.1-1.2, at vanadium oxytrichloride as catalyzer, temperature 80-85 DEG C, under pressure 1.5-2MPa, reaction 0.5-1 hour; Described short chain fatty acid is selected from the one in formic acid, acetic acid, propionic acid, isopropylformic acid, butyric acid, isovaleric acid, valeric acid; The consumption of described catalyzer is Al (OH)
30.5-1mol%;
The application of described pig-farm wastewater treatment agent is specially: pig house former pig manure water out, be separated through solid-liquid separating machine, solid part is as organic fertilizer raw material, liquid portion is through anaerobically fermenting, stratification after anaerobically fermenting, upper strata is liquid, lower floor is mud, lower floor's mud is separated by solid-liquid separating machine, solid part is as organic fertilizer raw material, supernatant liquid after liquid portion and anaerobically fermenting is mixed to form pending liquid and carries out flocculation treatment in the lump, the pig-farm wastewater treatment agent of 0.5-5kg is added in pending liquid per ton, stir 10-30s, leave standstill 60-70s, then by upper strata mud and lower floor's liquid separation, upper strata mud is separated through solid-liquid separating machine, solid part is as organic fertilizer raw material.
2. pig-farm wastewater treatment agent according to claim 1, is characterized in that: the COD value of former pig manure water is at 8000-30000, and the COD value of the supernatant liquid after anaerobically fermenting is at 2000-15000.
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| CN103482749B true CN103482749B (en) | 2016-02-10 |
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| CN105237793A (en) * | 2015-10-30 | 2016-01-13 | 南京工业大学 | Macro-molecular material for improving rate of biogas production of anaerobic fermentation system and preparation method for macro-molecular material and application of macro-molecular material |
| CN106219629A (en) * | 2016-08-29 | 2016-12-14 | 桂林新艺制冷设备有限责任公司 | A kind of composite water disposal agent |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834012A (en) * | 2010-04-12 | 2012-12-19 | 狮王株式会社 | Disinfection aid for ozone disinfection and method for ozone disinfection |
| CN102923740A (en) * | 2011-08-08 | 2013-02-13 | 河合石灰工业株式会社 | Boehmite and preparation method thereof |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834012A (en) * | 2010-04-12 | 2012-12-19 | 狮王株式会社 | Disinfection aid for ozone disinfection and method for ozone disinfection |
| CN102923740A (en) * | 2011-08-08 | 2013-02-13 | 河合石灰工业株式会社 | Boehmite and preparation method thereof |
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Effective date of registration: 20230412 Address after: 310011 2nd Floor, Building 3, No. 900.902.904, Hanghai Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU XIAOKAI TECHNOLOGY CO.,LTD. Patentee after: He Jianbing Address before: 310000, 2nd floor, Building 3, No. 900.902.904, Hanghai Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU XIAOKAI TECHNOLOGY CO.,LTD. |