CN106431560A - Exploiting city mud to prepare composite mixing fertilizer method - Google Patents
Exploiting city mud to prepare composite mixing fertilizer method Download PDFInfo
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- CN106431560A CN106431560A CN201610768719.9A CN201610768719A CN106431560A CN 106431560 A CN106431560 A CN 106431560A CN 201610768719 A CN201610768719 A CN 201610768719A CN 106431560 A CN106431560 A CN 106431560A
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- China
- Prior art keywords
- mud
- exploiting
- fertilizer
- prepare composite
- mixed fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D3/00—Calcareous fertilisers
- C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides exploiting city mud to prepare composite mixing fertilizer method. The preparation method includes the steps that one, jointly utilizes a composite biological fungus agent and spirit conduit, heightens the biological fungus fermentation rate, cuts fermentation hour, and from succession tart requirement the spirit conduit guards sundry biological fungus, raises the existence rate of biological fungus, promotes succession fertilizer effect beneficially; that second, mixes sulfate pellet and electro reaction according to proportion, removing weight metal, heightens fertilizer safety; that third, mixes kalk vermicelli bears and guards smell consequence, eases fertilizer smell; that fourth, back collects pellet by means of intense electro force scope, exploits approvingly duplicate, lowers cost; summing up, the manufacturing cost of the exploiting city mud to prepare composite mixing fertilizer method is low, the origin of the exploiting city mud to prepare composite mixing fertilizer method is numerous, the employ of the exploiting city mud to prepare composite mixing fertilizer is safe, the consequence of the exploiting city mud to prepare composite mixing fertilizer is good, the exploiting city mud to prepare composite mixing fertilizer method turns abandoned matter into usable matter.
Description
Technical field
The present invention relates to technical field of fertilizers, especially, relate to a kind of method utilizing municipal sludge to make Chemical Mixed Fertilizer.
Background technology
China, in terms of municipal sewage treatment, by introducing, digesting, absorbing advanced foreign technology, makes water technology have
Breakthrough progress.But, as the organic component of urban sewage treatment system, the process disposal technology of mud is but sent out
It is slow to open up, and constrains the process of municipal sewage treatment to a certain extent.The reason that cause this situation with existing in the world
It is relevant that specific resistance to filtration technology is not suitable for China's national situation.The problem of Treatment of Sludge difficulty abroad occurs early than China's many decades, he
The specific resistance to filtration method set up in long-term practice be summed up and mainly have sanitary landfills, burning and Land_use change etc.,
These methods be implemented with three below prerequisite：One is the need for enough Sludge landfill spaces；Two is to need to bear costliness
Equipment investment and high operating cost；Three is that content etc. to the such as heavy metal of harmful substance in mud has strict restriction bar
Part.And China is in addition to also cannot bearing too high Treatment of Sludge expense economically, it is often more important that China's municipal sludge tool
Have and be different from external two evident characteristic：One is the quantity of mud and volume is big especially, and is concentrated mainly on surrounding city,
There is no the space of suitable Sludge landfill at all；Two is due to sanitary sewage and industrial wastewater merging treatment, so that the one-tenth of mud
Dividing extremely complex, particularly content of beary metal is very high, and the Land_use change of mud is restricted.Obviously, external Treatment of Sludge side
Method is difficult to be used for reference by China.At present, China's major part mud is only through preliminary treatment, just carries out unordered temporarily store up or simply
Landfill, not only occupies large-area land resource, and destroys ecological environment, affect health.
N, P, the K containing in mud is nutriment necessary to crop growth, and the humus in mud is good
Soil conditioner, is applied to farmland and can improve soil texture, increase soil fertility, the growth promoting crop.Because in mud
Containing the harmful substance such as pathogen and parasitic ovum, so it is fertile to make agriculture after need are appropriately processed.Pre-treatment is carried out to mud
Method be most commonly used that compost treatment.Abroad by be used for after sludge composting dry granulated sell composite fertilizer suitable
Generally, in the U.S., there have been 65 such factories nineteen eighty-three, also has flashover discharge in developed countries such as France and Germany
Sell mouth.When the shortcoming of compost is bad weather, process is slow, and can produce foul smell.Mud is used for agricultural production and wants strict
Control content of beary metal therein, to prevent heavy metal from being worked the mischief human body by food chain, to this end, national governments successively make
Determine agricultural sludge heavy metal concentration standard, and the usage amount to unit are mud has made strict restriction.Therefore, research is opened
Send out the new method utilizing municipal sludge to make Chemical Mixed Fertilizer, both can realize the recycling of mud, can ensure that again in agricultural raw
The security using in product, has positive meaning.
Content of the invention
Present invention aim at providing a kind of new method utilizing municipal sludge to make Chemical Mixed Fertilizer, to solve technical problem.
A kind of method utilizing municipal sludge to make Chemical Mixed Fertilizer, comprises the following steps：
A, municipal sludge is imported aerated grit chamber, carry out mud-sand separation, the mud after sorting is injected sedimentation basin and carries out
Precipitation；
The mud that moisture content is 60-75% is imported fermentation 24-36h in fermentation vat by B, the water content measuring mud；
C, the mud addition organic acid that will ferment, by pH value regulation to 2-3；
D, addition ferric sulfate, after mixing, the regulation water content that adds water is 90-95%, puts into electrolytic cell, carries out at electrolysis
Reason；
E, carrying out separation of solid and liquid, in liquid, content of beary metal is high, is for further processing；Solid imports high-intensity magnetic field, carries out
Except iron；
F, carry out natural subsidence, obtain mud cake and filtrate；
G, pulverized limestone joined in mud cake and mixes, making the pH value of mud cake reach 6.5-7.5；
H, by mud cake granulate, be dried and packaging, make Chemical Mixed Fertilizer.
Preferably, interior vinasse, the poultry manure of 5-15% and the 0.1-0.3% adding 1-3% of described fermentation vat answers
Close microbial bacterial agent.
Preferably, described complex micro organism fungicide includes bacillus subtilis, bacillus licheniformis, lactic acid bacteria and black song
Mould.
Preferably, in the described high-intensity magnetic field in step E, the iron of absorption can be re-used in step D.
Black-koji mould in fermentation industry mainly for the production of amylase, acid protease, cellulase, pectase, grape
Carbohydrate oxidase, citric acid, gluconic acid and gallic acid etc..
The invention have the advantages that：The municipal sludge that utilizes of the present invention makes the method for Chemical Mixed Fertilizer, and one is to pass through
Add complex micro organism fungicide and vinasse to be used in conjunction with, not only can improve the fermentation efficiency of microorganism, shorten fermentation time, and
And under follow-up acid condition, various microorganisms can also be protected by vinasse, improve the survival rate of microorganism, be conducive to
Promote follow-up effect of fertilizer；Two is to add ferric sulfate and electrolysis to match, and removes removing heavy metals, improves fertilizer security；Three is to add
Enter pulverized limestone and there is odor-resistant result, mitigate the stink of fertilizer；Four is by high-intensity magnetic field, reclaims iron, repeatable utilization, reduces into
This；In sum, the municipal sludge that utilizes of the present invention makes Chemical Mixed Fertilizer, and not only low cost, source are wide, and use safety, effect
Really good, turn waste into wealth.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
The present invention is further detailed explanation below.
Detailed description of the invention
Hereinafter embodiments of the invention are described in detail, but the present invention can limit according to claim and cover
Multitude of different ways implement.
Embodiment 1
A kind of method utilizing municipal sludge to make Chemical Mixed Fertilizer, comprises the following steps：
A, municipal sludge is imported aerated grit chamber, carry out mud-sand separation, the mud after sorting is injected sedimentation basin and carries out
Precipitation；
The mud that moisture content is 70% is imported fermentation 30h in fermentation vat by B, the water content measuring mud；
C, the mud addition organic acid that will ferment, by pH value regulation to 2-3；
D, addition ferric sulfate, after mixing, the regulation water content that adds water is 92%, puts into electrolytic cell, carries out electrolysis process；
E, carrying out separation of solid and liquid, in liquid, content of beary metal is high, is for further processing；Solid imports high-intensity magnetic field, carries out
Except iron；
F, carry out natural subsidence, obtain mud cake and filtrate；
G, pulverized limestone joined in mud cake and mixes, making the pH value of mud cake reach 6.5-7.5；
H, by mud cake granulate, be dried and packaging, make Chemical Mixed Fertilizer.
The complex micro organism fungicide of the vinasse of 2%, the poultry manure of 10% and 0.25% is added in described fermentation vat.
Described complex micro organism fungicide includes bacillus subtilis, bacillus licheniformis, lactic acid bacteria and black-koji mould.
In the described high-intensity magnetic field in step E, the iron of absorption can be re-used in step D.
Embodiment 2
A kind of method utilizing municipal sludge to make Chemical Mixed Fertilizer, comprises the following steps：
A, municipal sludge is imported aerated grit chamber, carry out mud-sand separation, the mud after sorting is injected sedimentation basin and carries out
Precipitation；
The mud that moisture content is 75% is imported fermentation 24h in fermentation vat by B, the water content measuring mud；
C, the mud addition organic acid that will ferment, by pH value regulation to 2-3；
D, addition ferric sulfate, after mixing, the regulation water content that adds water is 95%, puts into electrolytic cell, carries out electrolysis process；
E, carrying out separation of solid and liquid, in liquid, content of beary metal is high, is for further processing；Solid imports high-intensity magnetic field, carries out
Except iron；
F, carry out natural subsidence, obtain mud cake and filtrate；
G, pulverized limestone joined in mud cake and mixes, making the pH value of mud cake reach 6.5-7.5；
H, by mud cake granulate, be dried and packaging, make Chemical Mixed Fertilizer.
The complex micro organism fungicide of the vinasse of 1%, the poultry manure of 15% and 0.3% is added in described fermentation vat.
Described complex micro organism fungicide includes bacillus subtilis, bacillus licheniformis, lactic acid bacteria and black-koji mould.
In the described high-intensity magnetic field in step E, the iron of absorption can be re-used in step D.
Embodiment 3
A kind of method utilizing municipal sludge to make Chemical Mixed Fertilizer, comprises the following steps：
A, municipal sludge is imported aerated grit chamber, carry out mud-sand separation, the mud after sorting is injected sedimentation basin and carries out
Precipitation；
The mud that moisture content is 60% is imported fermentation 36h in fermentation vat by B, the water content measuring mud；
C, the mud addition organic acid that will ferment, by pH value regulation to 2-3；
D, addition ferric sulfate, after mixing, the regulation water content that adds water is 90%, puts into electrolytic cell, carries out electrolysis process；
E, carrying out separation of solid and liquid, in liquid, content of beary metal is high, is for further processing；Solid imports high-intensity magnetic field, carries out
Except iron；
F, carry out natural subsidence, obtain mud cake and filtrate；
G, pulverized limestone joined in mud cake and mixes, making the pH value of mud cake reach 6.5-7.5；
H, by mud cake granulate, be dried and packaging, make Chemical Mixed Fertilizer.
The complex micro organism fungicide of the vinasse of 3%, the poultry manure of 5% and 0.1% is added in described fermentation vat.
Described complex micro organism fungicide includes bacillus subtilis, bacillus licheniformis, lactic acid bacteria and black-koji mould.
In the described high-intensity magnetic field in step E, the iron of absorption can be re-used in step D.
Hereinafter the different content of beary metal in the Chemical Mixed Fertilizer of embodiment 1-3 are detected, detected data as follows：
Table 1：Content of beary metal detection data in Chemical Mixed Fertilizer.
ND represents and does not detects.
By detecting data above it is recognised that the Chemical Mixed Fertilizer prepared of the present invention, content of beary metal meets national regulation requirement.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (4)
1. one kind utilizes the method that municipal sludge makes Chemical Mixed Fertilizer, it is characterised in that comprise the following steps：
A, municipal sludge is imported aerated grit chamber, carry out mud-sand separation, the mud after sorting is injected sedimentation basin and precipitates；
The mud that moisture content is 60-75% is imported fermentation 24-36h in fermentation vat by B, the water content measuring mud；
C, the mud addition organic acid that will ferment, by pH value regulation to 2-3；
D, addition ferric sulfate, after mixing, the regulation water content that adds water is 90-95%, puts into electrolytic cell, carries out electrolysis process；
E, carrying out separation of solid and liquid, in liquid, content of beary metal is high, is for further processing；Solid imports high-intensity magnetic field, carries out except iron；
F, carry out natural subsidence, obtain mud cake and filtrate；
G, pulverized limestone joined in mud cake and mixes, making the pH value of mud cake reach 6.5-7.5；
H, by mud cake granulate, be dried and packaging, make Chemical Mixed Fertilizer.
2. utilize municipal sludge to make the method for Chemical Mixed Fertilizer as claimed in claim 1, it is characterised in that in described fermentation vat
Add the complex micro organism fungicide of vinasse, the poultry manure of 5-15% and the 0.1-0.3% of 1-3%.
3. utilize municipal sludge to make the method for Chemical Mixed Fertilizer as claimed in claim 1, it is characterised in that described composite microbial
Thing microbial inoculum includes bacillus subtilis, bacillus licheniformis, lactic acid bacteria and black-koji mould.
4. utilize municipal sludge to make the method for Chemical Mixed Fertilizer as claimed in claim 1, it is characterised in that in described step E
High-intensity magnetic field in absorption iron be re-used in step D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768719.9A CN106431560A (en) | 2016-08-30 | 2016-08-30 | Exploiting city mud to prepare composite mixing fertilizer method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610768719.9A CN106431560A (en) | 2016-08-30 | 2016-08-30 | Exploiting city mud to prepare composite mixing fertilizer method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106431560A true CN106431560A (en) | 2017-02-22 |
Family
ID=58091067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610768719.9A Pending CN106431560A (en) | 2016-08-30 | 2016-08-30 | Exploiting city mud to prepare composite mixing fertilizer method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159680A (en) * | 2020-05-21 | 2022-10-11 | 浙江海元环境科技有限公司 | Composite sludge strain for yellow rice wine wastewater treatment and wastewater treatment method |
-
2016
- 2016-08-30 CN CN201610768719.9A patent/CN106431560A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159680A (en) * | 2020-05-21 | 2022-10-11 | 浙江海元环境科技有限公司 | Composite sludge strain for yellow rice wine wastewater treatment and wastewater treatment method |
| CN115159680B (en) * | 2020-05-21 | 2024-02-13 | 浙江海元环境科技有限公司 | Composite sludge strain for yellow wine wastewater treatment and wastewater treatment method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |