CN109970397A - A kind of efficient bed mud curing agent and its preparation and application - Google Patents
A kind of efficient bed mud curing agent and its preparation and application Download PDFInfo
- Publication number
- CN109970397A CN109970397A CN201811592091.7A CN201811592091A CN109970397A CN 109970397 A CN109970397 A CN 109970397A CN 201811592091 A CN201811592091 A CN 201811592091A CN 109970397 A CN109970397 A CN 109970397A
- Authority
- CN
- China
- Prior art keywords
- curing agent
- sludge
- bed mud
- heavy metal
- mud curing
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
- C04B2111/00775—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes the composition being used as waste barriers or the like, e.g. compositions used for waste disposal purposes only, but not containing the waste itself
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of efficient bed mud curing agent, technical field of sludge treatment.The efficient bed mud curing agent of the present invention includes: cement 15-30%, flyash 20-30%, gypsum 5-15%, di-iron trioxide 3-7%, heavy metal chelating agent 2-5%, heavy metal stabilizer 2-5%, slag 20-35% by weight percentage.The present invention provides that a kind of manufacturing cost is low, curing time is short and the heavy metal precipitation of free state in sludge can be made to encapsulate, and reaches efficient bed mud curing agent steady in a long-term.
Description
Technical field
The invention belongs to technical field of sludge treatment, more particularly to a kind of efficient bed mud curing agent and its preparation and answer
With.
Background technique
Sludge sanitary landfills is the mode often taken in current domestic many large-scale wastewater treatment plants, by postdigestive dirt
Mud content of organics is reduced, and performance is stablized, and total volume is reduced, and as landfill stabilization is a kind of both economical processing side after dehydration
Formula facilitates resource utilization.
Existing method for sludge treatment includes direct landfill disposal and curing agent curing process, at existing curing agent solidification
It manages not having there are curing agent manufacturing cost height, curing time length while existing curing agent and the heavy metal in original sludge is carried out
Chelating solidification；It is easy to leach a large amount of heavy metal ion etc. by the sludge that existing curing agent is handled, therefore a kind of manufacture is provided
It is at low cost, curing time is short and the heavy metal precipitation of free state in sludge can be made to encapsulate, reaching is institute of the present invention steadily in the long term
Problem to be solved.
Summary of the invention
Technical problem solved by the invention is when overcoming the deficiencies of the prior art and provide a kind of low manufacturing cost, solidification
Between heavy metal precipitation short and that free state in sludge can be made encapsulate, reach efficient bed mud curing agent steady in a long-term.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of efficient bed mud curing agent, by weight percentage includes: cement 15-30%, flyash 20-
30%, gypsum 5-15%, di-iron trioxide 3-7%, heavy metal chelating agent 2-5%, heavy metal stabilizer 2-5%, slag 20-
35%.
Further, the efficient bed mud curing agent includes: cement 25%, flyash 25%, life by weight percentage
Gypsum 10%, di-iron trioxide 5%, heavy metal chelating agent 3%, heavy metal stabilizer 3%, slag 29%.
A kind of preparation method of efficient bed mud curing agent, includes the following steps:
Slag and gypsum powder are broken to partial size and reach 1-30mm by step 1；
Step 2, in advance by heavy metal stabilizer, di-iron trioxide and heavy metal chelating agent be pre-mixed uniformly, then successively plus
It is uniform to enter slag, gypsum, flyash, cement mixing, combined grinding to Blain specific surface 450-700m2/kg, partial size is
The powdered curing agent of 0.05-0.5mm.
A kind of efficient bed mud curing agent is applied to Treatment of Sludge；It is applied particularly to the processing of channel cleanout sludge solidification, sewage
Treatment plant's sludge curing stabilization processes, the sludge or sludge treatment that industrial production generates.
The invention discloses the two kinds of efficient application methods of bed mud curing agent in Treatment of Sludge:
Scheme one, specifically includes:
S1, conditioning of mud water content to 75-85%；
S2, efficient bed mud curing agent is added into sludge, stirs evenly standing maintenance.
Further, the amount ratio of the efficient bed mud curing agent and sludge is 1-2:10.
Scheme two, specifically includes:
A1, sludge to be processed is modulated into the sludge slurry that sludge content is 5-25%；
A2, efficient bed mud curing agent is added into sludge slurry, is uniformly mixing to obtain mixture slurry；
A3, one layer of filler filter layer is laid with using filler；The filter bed of filler filter bed or big partial size material, facilitates in bed mud
Free water is precipitated；
A4, the mixture slurry for obtaining step 2 pour into filler filter layer, when the content of sludge in the mixture slurry of filtering is
At 5-15 times of packing quality, stop filtering and be simultaneously uniformly mixed filler filter layer and filter residue to stand maintenance.
Further, the amount ratio of the efficient bed mud curing agent and sludge is 1-3:15.
Further, the filler includes slag and flyash；The slag partial size is 1-30mm.
The invention has the following advantages:
1, the present invention provides a kind of low manufacturing cost, raw material preparation convenience and can solve the regenerated resources such as dump slag
Change sharp contradiction, curing time is short and the heavy metal precipitation of free state in sludge can be made to encapsulate, and reaches efficient bottom steady in a long-term
Mud curing agent；
2, ordinary cement of the present invention, slag and flyash are major ingredient, add gypsum, this four kinds of substance energy rapid curings；
Di-iron trioxide is added simultaneously, convenient for forming hydrated ferric oxide with the moisture content in sludge in use；Utilize aqua oxidation
There is iron big specific surface area and high reactivity to adsorb to heavy metal ion.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
A kind of preparation method of efficient bed mud curing agent, includes the following steps:
Slag and gypsum powder are broken to partial size and reach 1-30mm by step 1；
Step 2, in advance by heavy metal stabilizer, di-iron trioxide and heavy metal chelating agent be pre-mixed uniformly, then successively plus
It is uniform to enter slag, gypsum, flyash, cement mixing, combined grinding to Blain specific surface 450-700m2/ kg, partial size are
The powdered curing agent of 0.05-0.5mm.
Embodiment 1
A kind of efficient bed mud curing agent, include: by weight percentage cement 30%, flyash 20%, gypsum 10%,
Di-iron trioxide 3%, heavy metal chelating agent 5%, heavy metal stabilizer 2%, slag 30%.
Embodiment 2
A kind of efficient bed mud curing agent include: by weight percentage cement 25%, flyash 25%, gypsum 10%,
Di-iron trioxide 5%, heavy metal chelating agent 3%, heavy metal stabilizer 3%, slag 29%.
The invention discloses the two kinds of efficient application methods of bed mud curing agent in Treatment of Sludge:
Scheme one, specifically includes:
S1, conditioning of mud water content to 75-85%；
S2, efficient bed mud curing agent is added into sludge, stirs evenly standing maintenance.
The amount ratio of efficient bed mud curing agent and sludge is 1.5:10.
Scheme two, specifically includes:
A1, sludge to be processed is modulated into the sludge slurry that sludge content is 5-25%；
A2, efficient bed mud curing agent is added into sludge slurry, is uniformly mixing to obtain mixture slurry；
A3, one layer of filler filter layer is laid with using filler；A4, the mixture slurry for obtaining step 2 pour into filler filter layer,
When the content of sludge in the mixture slurry of filtering is 10 times of packing quality, stop filtering and mixing filler filter layer and filter residue
It closes and uniformly stands maintenance.
The amount ratio of efficient bed mud curing agent and sludge is 2:15.
Filler includes slag and flyash；Slag partial size is 1-30mm.
Application test:
Go above-described embodiment 1 and 2 gained curing agent of implementation that scheme one and the progress Treatment of Sludge of scheme two is respectively adopted, and right
Sludge before and after the processing is detected, and testing result is as shown in the table:
As seen from the above table, effectively the heavy metal ion in sludge can be chelated using bed mud curing agent of the invention
It is fixed, reduce leaching content.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (9)
1. a kind of efficient bed mud curing agent, which is characterized in that by weight percentage include: cement 15-30%, flyash 20-
30%, gypsum 5-15%, di-iron trioxide 3-7%, heavy metal chelating agent 2-5%, heavy metal stabilizer 2-5%, slag 20-
35%.
2. a kind of efficient bed mud curing agent according to claim 1, which is characterized in that the efficient bed mud curing agent is with weight
Amount percentages include: cement 25%, flyash 25%, gypsum 10%, di-iron trioxide 5%, heavy metal chelating agent 3%,
Heavy metal stabilizer 3%, slag 29%.
3. a kind of preparation method of efficient bed mud curing agent as described in claim 1-2 is any one, which is characterized in that including such as
Lower step:
Slag and gypsum powder are broken to partial size and reach 1-30mm by step 1；
Step 2, in advance by heavy metal stabilizer, di-iron trioxide and heavy metal chelating agent be pre-mixed uniformly, sequentially add mine
Slag, gypsum, flyash, cement mixing are uniform, combined grinding to Blain specific surface 450-700m2/ kg, partial size 0.05-
The powdered curing agent of 0.5mm.
4. a kind of efficient bed mud curing agent claimed in claims 1-2 is applied to Treatment of Sludge.
5. application according to claim 4, which is characterized in that specifically include:
S1, conditioning of mud water content to 75-85%；
S2, efficient bed mud curing agent is added into sludge, stirs evenly standing maintenance.
6. application according to claim 5, which is characterized in that the amount ratio of the efficient bed mud curing agent and sludge is 1-
2:10。
7. application according to claim 4, which is characterized in that specifically include:
A1, sludge to be processed is modulated into the sludge slurry that sludge content is 5-25%；
A2, efficient bed mud curing agent is added into sludge slurry, is uniformly mixing to obtain mixture slurry；
A3, one layer of filler filter layer is laid with using filler；
A4, the mixture slurry for obtaining step 2 pour into filler filter layer, when the content of sludge in the mixture slurry of filtering is filler
At 5-15 times of quality, stop filtering and be simultaneously uniformly mixed filler filter layer and filter residue to stand maintenance.
8. application according to claim 7, which is characterized in that the amount ratio of the efficient bed mud curing agent and sludge is 1-
3:15。
9. application according to claim 7, which is characterized in that the filler includes slag and flyash；The slag
Partial size is 1-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592091.7A CN109970397A (en) | 2018-12-25 | 2018-12-25 | A kind of efficient bed mud curing agent and its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592091.7A CN109970397A (en) | 2018-12-25 | 2018-12-25 | A kind of efficient bed mud curing agent and its preparation and application |
Publications (1)
| Publication Number | Publication Date |
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| CN109970397A true CN109970397A (en) | 2019-07-05 |
Family
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| CN201811592091.7A Pending CN109970397A (en) | 2018-12-25 | 2018-12-25 | A kind of efficient bed mud curing agent and its preparation and application |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086670A (en) * | 2013-01-31 | 2013-05-08 | 湖北理工学院 | Method for curing lake dredged sediment containing heavy metal |
| CN104828925A (en) * | 2015-05-27 | 2015-08-12 | 杭州正洁环保科技有限公司 | Solid-state heavy metal waste water treatment agent and application method thereof |
-
2018
- 2018-12-25 CN CN201811592091.7A patent/CN109970397A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086670A (en) * | 2013-01-31 | 2013-05-08 | 湖北理工学院 | Method for curing lake dredged sediment containing heavy metal |
| CN104828925A (en) * | 2015-05-27 | 2015-08-12 | 杭州正洁环保科技有限公司 | Solid-state heavy metal waste water treatment agent and application method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 姜正侯等: "《燃气工程技术手册》", 31 May 1993, 同济大学出版社 * |
| 王敬国: "《生物地球化学-物质循环与土壤过程》", 31 March 2017, 中国农业大学出版社 * |
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Application publication date: 20190705 |
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