CN207391228U - A kind of device of sludge organic fertilizer - Google Patents
A kind of device of sludge organic fertilizer Download PDFInfo
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- CN207391228U CN207391228U CN201721356593.0U CN201721356593U CN207391228U CN 207391228 U CN207391228 U CN 207391228U CN 201721356593 U CN201721356593 U CN 201721356593U CN 207391228 U CN207391228 U CN 207391228U
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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
Abstract
The utility model provides a kind of device of sludge organic fertilizer, the organic matter in sludge and abundant nitrogen can be retained, phosphorus, potassium nutrition element, kill the bacterium in sludge and pathogenic microorganisms, remove the heavy metal in sludge, it is formed after compost treatment rich in nitrogen, phosphorus, potassium nutrition element and organic fertilizer that the content of organic matter is high, including aerobic aeration pond, the quenched tank of sludge, once washing mixing channel, once washing precipitation tank, phosphorus recycles mixing channel, phosphorus recycles precipitation tank, sewage-treatment plant, secondary washing mixing channel, secondary washing precipitation tank, nurse one's health tank, dehydration device, compost aging device, air cleaning unit.
Description
Technical field
The utility model is related to sludge treatment field more particularly to a kind of devices of sludge organic fertilizer.
Background technology
It is a kind of source of manure for worth utilizing containing abundant organic matter, nitrogen, phosphorus, potassium nutrition ingredient in sludge.For China
Such a developing large agricultural country, sludge landfill characteristics have more significance, higher particularly with content in sludge, the whole world
In the range of more rare phosphor resource.Phosphorus ore belongs to non-renewable resources, at present phosphate rock resource suitable development 50 years or so, and
A few countries are mainly concentrated in the place of production, and the scarcity and irreplaceability of phosphate rock resource determine that the valuation of this resource more should
Higher than other resources.In addition, China's phosphorus ore abundant ore source is only sufficient to supply 10 years or so for the part of exploitation, it means that phosphorus
Ore resources will be in following rapid exhaustion, so phosphate rock resource is qualitative for strategic resources by China.However, phosphor resource is again
Do not replace resource, phosphate fertilizer plays an important role to the volume increase of crops, phosphorus be cytoplasmic biomolecule important composition element and
A kind of essential element of plant growth.84% ~ 90% phosphorus ore for producing various phosphate fertilizer, consume by Chinese phosphorus ore in the world
Phosphate fertilizer accounts for 71% in structure.Therefore, fertilizer is made in sludge after processing, is dirty with phosphor resource needed for supplementing plant and crops
The disposal trend in mud future.
However, containing pathogenic microorganisms and this kind of polluter of heavy metal in sludge again, meeting is applied after the direct compost of sludge
Cause farmland and crop pollution.Therefore, sludge removes the heavy metal and pathogenic microorganisms in sludge, so through necessary pretreatment
After carry out compost, and then meet Land application research it is very necessary.
The content of the invention
The utility model provides a kind of device of sludge organic fertilizer, can retain organic matter in sludge and abundant
Nitrogen, phosphorus, potassium nutrition element kill the bacterium in sludge and pathogenic microorganisms, the heavy metal in sludge are removed, after compost treatment
Formed rich in nitrogen, phosphorus, potassium nutrition element and organic fertilizer that the content of organic matter is high.
The technical solution adopted in the utility model is：
A kind of device of sludge organic fertilizer, including：
Aerobic aeration pond, import are connected with sewage plant concentration basin；
The quenched tank of sludge, import is connected with aerobic aeration pond outlet, equipped with agitating device and adjusting material dosing
Tank；
Once washing mixing channel, import tank outlet quenched with the sludge is connected, equipped with agitating device；
Once washing precipitation tank is connected with the once washing mixing channel；
Phosphorus recycles mixing channel, and import is connected with the once washing precipitation tank liquid outlet, equipped with agitating device, sinks
Shallow lake agent grug feeding jar and precipitation replenishers grug feeding jar；
Phosphorus recycles precipitation tank, is connected with phosphorus recycling mixing channel；
Sewage-treatment plant, import are connected with phosphorus recycling precipitation tank liquid outlet；
Secondary washing mixing channel, import and once washing precipitation tank bottom precipitation outlet, phosphorus recycling precipitation tank bottom
Portion precipitation outlet is connected, equipped with agitating device；
Secondary washing precipitation tank is connected with the secondary washing mixing channel；
Tank is nursed one's health, import is connected with secondary washing precipitation tank bottom precipitation outlet, equipped with agitating device and tune
Manage agent grug feeding jar；
Dehydration device, import are connected with the outlet of the conditioning tank, water outlet and the sewage-treatment plant
Import is connected；
Compost aging device, import are connected with the mud mouth of the dehydration device；
Air cleaning unit, import go out with the gas vent of the quenched tank of the sludge, the gas of once washing mixing channel
Mouth is connected with the gas vent of compost aging device.
Further, No.1 reflux pump is further included, import is connected with the secondary washing precipitation tank liquid outlet,
Outlet is connected with the once washing mixing channel import.
Further, No. two reflux pumps are further included, import is connected with the sewage-treatment plant water outlet, outlet
It is connected with the secondary washing mixing channel import.
Further, No. three reflux pumps are further included, import is connected with the sewage-treatment plant water outlet, outlet
It is connected with the once washing mixing channel import.
A kind of method of sludge organic fertilizer has following steps：
（a）The sludge of sewage plant concentration basin is pumped into aerobic aeration pond, is aerated in aeration tank, makes mud granule abundant
It breaks up, and prevents sludge anaerobic from generating foul smell；
（b）Sludge solutions after aeration enter the quenched tank of sludge, and adjusting material is added in the quenched tank of sludge, and stir, and make
Sludge is fully reacted with adjusting material, under the action of adjusting material, microbial bacteria micelle package heavy metal ion and phosphate with
And other soluble inorganic salts release, heavy metal ion and phosphate radical are dissolved into liquid phase；
（c）Sludge after quenched enters once washing mixing channel and carries out once washing, to being dissolved into liquid phase in sludge solutions
Heavy metal ion and phosphate radical be diluted, the sludge solutions after washing enter once washing precipitation tank and carry out precipitation separation；
（d）Clear liquid after once washing precipitation enters phosphorus recycling mixing channel, phosphate radical and precipitating reagent and precipitation in solution
Replenishers react generation calcium phosphate precipitation under stirring, and heavy metal ion is still in liquid phase, and the mixing after reaction is molten
Liquid enters phosphorus recycling precipitation tank and carries out precipitation separation, and the supernatant containing heavy metal ion after separation enters sewage disposal dress
It puts；
（e）The phosphate of sludge after once washing and phosphorus recycling precipitation tank for precipitation together into secondary washing mixing channel into
Row secondary washing, the sludge solutions after washing enter secondary washing precipitation tank and carry out precipitation separation；
（f）Sludge after secondary washing enters conditioning tank, is reacted under the action of stirring with conditioner, formed it is neutral,
Containing organic matter and abundant nitrogen, phosphorus, potassium sludge；
（g）Sludge after conditioning enters dehydration device and is dehydrated, and the water of removing enters in sewage-treatment plant, after dehydration
Sludge enter compost aging device carry out compost ripening, compost ageing after obtain organic fertilizer；
（h）Qualified discharge after the sewage of collection is handled in sewage-treatment plant；
（i）The a small amount of foul smell generated in quenched, once washing, compost ageing process pumps after being purified by air cleaning unit
Enter in sewage plant biochemical system aerator.
Further, the step（c）The cleaning solution of middle once washing can be tap water, sewage-treatment plant water outlet or
The supernatant of person's secondary washing.
Further, the step（e）The cleaning solution of middle secondary washing can be that tap water or sewage-treatment plant go out
Water.
Further, the adjusting material is any one or a few in dilute hydrochloric acid, dust technology, dilute sulfuric acid, spirit of vinegar, is added
Dose is 2 ~ 4mol hydrogen ions/dry mud of kg.
Further, the precipitating reagent is sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, oxidation
One or more of magnesium, dosage are；The precipitation replenishers are iron chloride, one kind in ferric sulfate, aluminium chloride, aluminum sulfate
It is or several.
Further, the conditioner is sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, oxidation
One or more of magnesium.
The beneficial effects of the utility model are：
1st, the device of the sludge organic fertilizer of the utility model first carries out aerobic aeration to sludge, prevents sludge anaerobic,
Gas collection is carried out to necessary workshop section again, the foul smell that system generates is focused on so that entire processing procedure will not cause sky
Gas pollutes.
It 2nd, will be in sludge containing organic matter, n p k nutrition element, heavy metal, bacterium and pathogenic microorganisms in sludge
The method that bacterium and pathogenic microorganisms are killed is more mature, and the heavy metal in sludge is usually passivated by the prior art, then carries out heap
Fertilizer processing, and the heavy metal being passivated is still potentially dangerous to environment and crops.The application is by first will be organic in sludge
Matter is separated with heavy metal and part nutrient, then heavy metal is separated with part nutrient, is gone part after removing heavy metals
Nutrient and organic matter in conjunction with mode, organic matter in sludge is not destroyed while the heavy metal in sludge is effectively removed
And nutrient, utilization rate height, innoxious organic fertilizer is made in sludge, and effectively prevents the stream of phosphor resource in sludge
It loses.
3rd, in the organic fertilizer that domestic sludge obtains after the application is handled, mass fraction >=50% of organic matter, total nutrient
（Nitrogen+phosphorus pentoxide+potassium oxide）Mass fraction >=15%, moisture（Fresh sample）Mass fraction≤20%, acid-base value（pH）For 6
~ 8, in butt matter, total arsenic content≤15mg/kg, the mg/kg of total mercury content≤2, the mg/kg of total lead content≤50, total cadmium content≤
3 mg/kg, the mg/kg of total chrome content≤150 meet《NYN525-2002 organic fertilizer》Standard.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of schematic device of sludge organic fertilizer of the utility model；
Fig. 2 is a kind of schematic device of sludge organic fertilizer embodiment 1 of the utility model；
Fig. 3 is a kind of schematic device of sludge organic fertilizer embodiment 2 of the utility model.
In figure：1- aerobic aerations pond, the quenched tank of 2- sludge, 31- once washing mixing channels, 32- once washing precipitation tanks,
41- phosphorus recycles mixing channel, 42- phosphorus recycling precipitation tank, 5- sewage-treatment plants, 61- secondary washing mixing channels, 62- secondary washings
Precipitation tank, 7- conditioning tanks, 8- dehydration devices, 9- compost aging devices, 10- air cleaning units, 11- adjusting material grug feeding jars, 12-
Precipitating reagent grug feeding jar, 13- precipitation replenishers grug feeding jars, 14- conditioner grug feeding jars, 15- No.1 reflux pumps, No. bis- reflux pumps of 16-,
No. tri- reflux pumps of 17-.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
A kind of device of sludge organic fertilizer, including：
Aerobic aeration pond, import are connected with sewage plant concentration basin；
The quenched tank of sludge, import is connected with aerobic aeration pond outlet, equipped with agitating device and adjusting material dosing
Tank；
Once washing mixing channel, import tank outlet quenched with the sludge is connected, equipped with agitating device；
Once washing precipitation tank is connected with the once washing mixing channel；
Phosphorus recycles mixing channel, and import is connected with the once washing precipitation tank liquid outlet, equipped with agitating device, sinks
Shallow lake agent grug feeding jar and precipitation replenishers grug feeding jar；
Phosphorus recycles precipitation tank, is connected with phosphorus recycling mixing channel；
Sewage-treatment plant, import are connected with phosphorus recycling precipitation tank liquid outlet；
Secondary washing mixing channel, import and once washing precipitation tank bottom precipitation outlet, phosphorus recycling precipitation tank bottom
Portion precipitation outlet is connected, equipped with agitating device；
Secondary washing precipitation tank is connected with the secondary washing mixing channel；
Tank is nursed one's health, import is connected with secondary washing precipitation tank bottom precipitation outlet, equipped with agitating device and tune
Manage agent grug feeding jar；
Dehydration device, import are connected with the outlet of the conditioning tank, water outlet and the sewage-treatment plant
Import is connected；
Compost aging device, import are connected with the mud mouth of the dehydration device；
Air cleaning unit, import go out with the gas vent of the quenched tank of the sludge, the gas of once washing mixing channel
Mouth is connected with the gas vent of compost aging device.
Further, No.1 reflux pump is further included, import is connected with the secondary washing precipitation tank liquid outlet,
Outlet is connected with the once washing mixing channel import.
Further, No. two reflux pumps are further included, import is connected with the sewage-treatment plant water outlet, outlet
It is connected with the secondary washing mixing channel import.
Further, No. three reflux pumps are further included, import is connected with the sewage-treatment plant water outlet, outlet
It is connected with the once washing mixing channel import.
A kind of method of sludge organic fertilizer has following steps：
（a）The sludge of sewage plant concentration basin is pumped into aerobic aeration pond, is aerated in aeration tank, makes mud granule abundant
It breaks up, and prevents sludge anaerobic from generating foul smell；
（b）Sludge solutions after aeration enter the quenched tank of sludge, and adjusting material is added in the quenched tank of sludge, and stir, and make
Sludge is fully reacted with adjusting material, under the action of adjusting material, microbial bacteria micelle package heavy metal ion and phosphate with
And other soluble inorganic salts release, heavy metal ion and phosphate radical are dissolved into liquid phase；
（c）Sludge after quenched enters once washing mixing channel and carries out once washing, to being dissolved into liquid phase in sludge solutions
Heavy metal ion and phosphate radical be diluted, the sludge solutions after washing enter once washing precipitation tank and carry out precipitation separation；
（d）Clear liquid after once washing precipitation enters phosphorus recycling mixing channel, phosphate radical and precipitating reagent and precipitation in solution
Replenishers react generation calcium phosphate precipitation under stirring, and heavy metal ion is still in liquid phase, and the mixing after reaction is molten
Liquid enters phosphorus recycling precipitation tank and carries out precipitation separation, and the supernatant containing heavy metal ion after separation enters sewage disposal dress
It puts；
（e）The phosphate of sludge after once washing and phosphorus recycling precipitation tank for precipitation together into secondary washing mixing channel into
Row secondary washing, the sludge solutions after washing enter secondary washing precipitation tank and carry out precipitation separation；
（f）Sludge after secondary washing enters conditioning tank, is reacted under the action of stirring with conditioner, formed it is neutral,
Containing organic matter and abundant nitrogen, phosphorus, potassium sludge；
（g）Sludge after conditioning enters dehydration device and is dehydrated, and the water of removing enters in sewage-treatment plant, after dehydration
Sludge enter compost aging device carry out compost ripening, compost ageing after obtain organic fertilizer；
（h）Qualified discharge after the sewage of collection is handled in sewage-treatment plant；
（i）The a small amount of foul smell generated in quenched, once washing, compost ageing process pumps after being purified by air cleaning unit
Enter in sewage plant biochemical system aerator.
Further, the step（c）The cleaning solution of middle once washing can be tap water, sewage-treatment plant water outlet or
The supernatant of person's secondary washing.
Further, the step（e）The cleaning solution of middle secondary washing can be that tap water or sewage-treatment plant go out
Water.
Further, the adjusting material is any one or a few in dilute hydrochloric acid, dust technology, dilute sulfuric acid, spirit of vinegar, is added
Dose is 2 ~ 4mol hydrogen ions/dry mud of kg.
Further, the precipitating reagent is sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, oxidation
One or more of magnesium；The precipitation replenishers are one or more of iron chloride, ferric sulfate, aluminium chloride, aluminum sulfate.
Further, the conditioner is sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, calcium oxide, oxidation
One or more of magnesium.
Embodiment 1
Certain domestic sludge, moisture content 94%, the content of organic matter（In terms of butt）For 38%, content of beary metal（Hg+Cd+Cr+As
+Zn+Cu+Ni）（In terms of butt）For 2150mg/kg.When the sludge aeration residence time is 8 small；Adjusting material is dilute sulfuric acid, addition
For 2mol hydrogen ions/dry mud of kg, pH=3.5 are adjusted；Precipitating reagent is sodium hydroxide, precipitation replenishers be iron chloride, adjust pH=
4.5；Conditioner is calcium oxide, adjusts pH=6.5, and once washing liquid is secondary washing liquid water outlet, and secondary washing liquid is sewage disposal
Device water outlet.After compost treatment, the content of organic matter is 52% in fertilizer, total nutrient（Nitrogen+phosphorus pentoxide+potassium oxide）Quality
Fraction is 19%, in butt matter, total arsenic content≤15mg/kg, and the mg/kg of total mercury content≤2, the mg/kg of total lead content≤50, always
The mg/kg of cadmium content≤3, the mg/kg of total chrome content≤150, meets《NYN525-2002 organic fertilizer》Standard.
Embodiment 2
Certain domestic sludge, moisture content 96.5%, the content of organic matter（In terms of butt）For 43%, content of beary metal（Hg+Cd+Cr+
As+Zn+Cu+Ni）（In terms of butt）For 1850mg/kg.When the sludge aeration residence time is 24 small；Adjusting material is dilute hydrochloric acid, is added
Enter amount for 4mol hydrogen ions/dry mud of kg, adjust pH=3.0；Precipitating reagent is calcium hydroxide, and precipitation replenishers are aluminum sulfate, adjust pH
=5.0；Conditioner is magnesium hydroxide, adjusts pH=7.5, and once washing liquid is sewage-treatment plant, and secondary washing liquid is at sewage
Manage device water outlet.After compost treatment, the content of organic matter is 57% in fertilizer, total nutrient（Nitrogen+phosphorus pentoxide+potassium oxide）Matter
It is 16% to measure fraction, in butt matter, total arsenic content≤15mg/kg, and the mg/kg of total mercury content≤2, the mg/kg of total lead content≤50,
The mg/kg of total cadmium content≤3, the mg/kg of total chrome content≤150, meets《NYN525-2002 organic fertilizer》Standard.
Claims (4)
1. a kind of device of sludge organic fertilizer, which is characterized in that including：
Aerobic aeration pond（1）, import is connected with sewage plant concentration basin；
The quenched tank of sludge（2）, import and the aerobic aeration pond（1）Outlet is connected, and adds equipped with agitating device and adjusting material
Medicinal cupping（11）；
Once washing mixing channel（31）, import and the quenched tank of the sludge（2）Outlet is connected, equipped with agitating device；
Once washing precipitation tank（32）, with the once washing mixing channel（31）It is connected；
Phosphorus recycles mixing channel（41）, import and the once washing precipitation tank（32）Liquid outlet is connected, and is filled equipped with stirring
It puts, precipitating reagent grug feeding jar（12）With precipitation replenishers grug feeding jar（13）；
Phosphorus recycles precipitation tank（42）, mixing channel is recycled with the phosphorus（41）It is connected；
Sewage-treatment plant（5）, import and the phosphorus recycle precipitation tank（42）Liquid outlet is connected；
Secondary washing mixing channel（61）, import and the once washing precipitation tank（32）Bottom precipitation outlet, phosphorus recycling precipitation
Slot（42）Bottom precipitation outlet is connected, equipped with agitating device；
Secondary washing precipitation tank（62）, with the secondary washing mixing channel（61）It is connected；
Nurse one's health tank（7）, import and the secondary washing precipitation tank（62）Bottom precipitation outlet is connected, equipped with agitating device and
Conditioner grug feeding jar（14）；
Dehydration device（8）, import and the conditioning tank（7）Outlet be connected, water outlet and the sewage-treatment plant
（5）Import be connected；
Compost aging device（9）, import and the dehydration device（8）Mud mouth be connected；
Air cleaning unit（10）, import and the quenched tank of the sludge（2）Gas vent, once washing mixing channel（31）'s
Gas vent and compost aging device（9）Gas vent be connected.
2. a kind of device of sludge organic fertilizer as described in claim 1, which is characterized in that further include No.1 reflux pump
（15）, import and the secondary washing precipitation tank（62）Liquid outlet is connected, outlet and the once washing mixing channel
（31）Import is connected.
3. a kind of device of sludge organic fertilizer as described in claim 1, which is characterized in that further include No. two reflux pumps
（16）, import and the sewage-treatment plant（5）Water outlet is connected, outlet and the secondary washing mixing channel（61）Into
Mouth is connected.
4. a kind of device of sludge organic fertilizer as described in claim 1, which is characterized in that further include No. three reflux pumps
（17）, import and the sewage-treatment plant（5）Water outlet is connected, outlet and the once washing mixing channel（31）Into
Mouth is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356593.0U CN207391228U (en) | 2017-10-20 | 2017-10-20 | A kind of device of sludge organic fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356593.0U CN207391228U (en) | 2017-10-20 | 2017-10-20 | A kind of device of sludge organic fertilizer |
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| Publication Number | Publication Date |
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| CN207391228U true CN207391228U (en) | 2018-05-22 |
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ID=62329265
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| CN201721356593.0U Active CN207391228U (en) | 2017-10-20 | 2017-10-20 | A kind of device of sludge organic fertilizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540182A (en) * | 2017-10-20 | 2018-01-05 | 天津壹新环保工程有限公司 | A kind of method and apparatus of sludge organic fertilizer |
-
2017
- 2017-10-20 CN CN201721356593.0U patent/CN207391228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540182A (en) * | 2017-10-20 | 2018-01-05 | 天津壹新环保工程有限公司 | A kind of method and apparatus of sludge organic fertilizer |
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