CN109160794A - A kind of high water detritus sludge consolidating agent and its synthetic method - Google Patents

A kind of high water detritus sludge consolidating agent and its synthetic method Download PDF

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Publication number
CN109160794A
CN109160794A CN201810955370.9A CN201810955370A CN109160794A CN 109160794 A CN109160794 A CN 109160794A CN 201810955370 A CN201810955370 A CN 201810955370A CN 109160794 A CN109160794 A CN 109160794A
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CN
China
Prior art keywords
consolidating agent
slag
sludge
agent
component
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Pending
Application number
CN201810955370.9A
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Chinese (zh)
Inventor
朱书景
周瑆玥
黄刚
柯杰
张天翼
张纯博
高靖翔
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Hubei University
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Hubei University
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Priority to CN201810955370.9A priority Critical patent/CN109160794A/en
Publication of CN109160794A publication Critical patent/CN109160794A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates
    • C04B28/08—Slag cements
    • C04B28/082—Steelmaking slags; Converter slags
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/008—Sludge treatment by fixation or solidification
    • 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
    • C04B2111/00784—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes for disposal only
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/23—Acid resistance, e.g. against acid air or rain
    • 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
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/29—Frost-thaw resistance

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention discloses a kind of high water detritus sludge consolidating agent and its synthetic method, the mass percent of each component of the consolidating agent are as follows: slag composite powder 5~25%, steel slag 10~45%, calcium formate 0.1%~0.5%, Bacillus pasteurii 0.5~1%, magnesium sulfate 3~10%, second class powered coal ash 35~50%, calcification bentonite 1~8%；Wherein, slag composite powder includes slag powders 4.5~18%, gypsum 0~5%, calcium lignosulfonate or FDN water-reducing agent 0.5~2%.The described method includes: each component is measured to weighing in proportion, it is dry；Mixed component after drying is put into closed mixing system mix；Mixed component after stirring is packed through baling press overlay film or air pressure is pumped into vacuum tank and stores.The consolidating agent production process energy consumption is small, and steel slag incorporation is big, and production cost is low, good product quality, the negative factors such as sewage plant high-moisture percentage, high organic content, faintly acid can effectively be overcome, under equal conditions, modified mud is impervious, water stabilizing greatly improves.

Description

A kind of high water detritus sludge consolidating agent and its synthetic method
Technical field
The present invention relates to environmental protection technical field more particularly to a kind of high water detritus sludge consolidating agent and its synthesis sides Method.
Background technique
Wastewater treatment in China factory produces a large amount of activated sludge, the direct emission meeting of these sludge in sewage disposal process The secondary pollution of environment is caused, this problem has caused the great attention of relevant department.For Wuhan City, processing daily at present Nearly 2,000,000 tons of sanitary sewage, handle these sewage generation 1000 tons or so of the sludge quantity moon, these sludge belong to high water detritus Sludge, humic acid content are up to 70%, and moisture content is up to 80%, mould shape sludge for stream, it is extremely difficult to which processing and transport are city texts A persistent ailment in bright process of construction.
Using consolidating agent can rapidly solidified waste particle, the fixed toxic heavy metal ion included, pathogen leach poison Property it is not exceeded, eliminate the hidden danger of harm, and clay manufacture walling, component can be substituted after consolidating, comprehensive utilization of resources, protection Ecological environment has significant society, environment, economic benefit, is the industry of sustainable development in circular economy technical field.
It is used for the cured building waste micro mist consolidating agent of the soil body in the prior art, prepared by each component of weight percent: Building waste micro mist 30-70%；Desulfurized gypsum 10-30%；Washing slurry 5-30%；Additive 1-5%, the weight of the above components The sum of percentage is 100%.The consolidating agent has the complete regeneration for being able to achieve building waste, and sufficiently excites brick and tile micro mist The activity of equal mineral admixtures realizes that building waste is innoxious, minimizing, while also realizing the full regenerated resources of building waste The advantages of utilization.
But above-mentioned consolidating agent is not to handle the consolidating agent used for sewage plant sludge, to the processing high water detritus of sewage plant Sludge, especially humic acid content are up to 70%, and moisture content is up to 80% stream modeling shape sludge, basic to fail.
Summary of the invention
The present invention provides a kind of high water detritus sludge consolidating agent and its synthetic method, solves in the prior art not to dirt The technical issues of consolidating agent that waterworks sludge is handled.
The present invention is achieved through the following technical solutions:
A kind of high water detritus sludge consolidating agent, the consolidating agent according to mass percent meter include: slag composite powder 5~ 25%, steel slag 10~45%, calcium formate 0.1%~0.5%, Bacillus pasteurii 0.5~1%, magnesium sulfate 3~10%, second level Flyash 35~50%, calcification bentonite 1~8%；Wherein, slag composite powder include slag powders 4.5~18%, gypsum 0~ 5%, calcium lignosulfonate or FDN water-reducing agent 0.5~2%.
In above scheme, the slag composite powder 10~20%, steel slag 25~35%, magnesium sulfate 5~8%, calcification swelling Soil 7~8%.
The synthetic method of the consolidating agent, which comprises
Each component is measured to weighing, drying to aqueous dose rate < 1%, the mixed component after being dried in proportion；
Mixed component after drying is put into closed mixing system, mix；
Mixed component after stirring is packed through baling press overlay film or air pressure is pumped into vacuum tank and stores, obtains institute State consolidating agent.
In above scheme, the method is to mix consolidating agent for 1~12:100 according to mass ratio with sludge.
The invention has the benefit that the consolidating agent production process energy consumption is small, steel slag incorporation is big, and production cost is low, produces Quality is good, can effectively overcome the negative factors such as sewage plant high-moisture percentage, high organic content, faintly acid, under equal conditions, Its modified mud is impervious, water stabilizing greatly improves.Wherein, modified mud coefficient of softing is greater than 0.90；It is antiacid Alkali salt media chemistry erosion factor is greater than 1.0；Modified mud freeze thawing resistance circulation ability can be improved one times；Infiltration coefficient reaches 10-6~10-8cm/s。
In addition, the production of the application consolidating agent is simple and convenient, and it is low in cost, be conducive to be mass produced.And the application Consolidating agent application method it is simple, operate it is easy, be suitble to large-scale promotion application.
Specific embodiment
In order to better understand the above technical scheme, being carried out below in conjunction with specific embodiment to above-mentioned technical proposal Detailed description.
The application provides a kind of high water detritus sludge consolidating agent and its synthetic method.The mass percent of each component Are as follows: slag composite powder 5~25%, steel slag 10~45%, calcium formate 0.1%~0.5%, Bacillus pasteurii (ATCC11859) 0.5~1%, magnesium sulfate 3~10%, second class powered coal ash 35~50%, calcification bentonite 1~8%；Wherein, slag composite powder packet Include slag powders 4.5~18%, gypsum 0~5%, calcium lignosulfonate or FDN water-reducing agent 0.5~2%.
The synthetic method of above-mentioned consolidating agent the following steps are included:
Step 11, each component is measured into load-bearing in proportion, is dried to aqueous dose rate < 1%, the mixing group after being dried Point；
Step 12, the mixed component after drying is put into closed mixing system, mix is uniform；
Step 13, the mixed component after stirring is packed through baling press overlay film or air pressure is pumped into vacuum tank and stores It deposits, obtains the consolidating agent.
The application makes full use of industrial residue and industrial auxiliary material, turns waste into wealth, and lime is not added, carbide slag, binder, Early strength agent, the materials such as cement do not need setting fog room, energy saving, use mixed ratio: consolidating agent and sludge quality ratio= 1~12:100, production cost is low, and consolidation effect is good, and supplementary material setting is obtained to be generated without special processing and secondary pollution.Invention Purpose be solve sewage plant sludge problem of outlet.
The present invention has made intensive studies the component of conversion processing, and selected various components obtain matching for this consolidating agent Side.Its consolidate cardinal principle be: by with sludge haptoreaction, gelling environment in occur consolidation hydration reaction, for height Water detritus ingredient is isolated, is adsorbed, is consolidated, and can be formed many oxide nothing determine phase constitution, the substance to humic acid with Hydrone has very strong attraction, will be adsorbed by it after contacting with organic pollutant, and complex reaction occurs and is formed more The more water mineral of the complexing formula stable, harmless, solubility is extremely low will by principles such as package, adsorption bridging, solid solution, complex reactions Particulate matter is fixedly arranged in induration in the form of the crystallization water, forms intensity.
The consolidating agent production process energy consumption is small, and steel slag incorporation is big, and production cost is low, and good product quality can effectively overcome The negative factors such as sewage plant high-moisture percentage, high organic content, faintly acid, under equal conditions, modified mud is impervious, Water stabilizing greatly improves.Wherein, modified mud coefficient of softing is greater than 0.90；Antiacid alkali salt media chemistry erosion factor Greater than 1.0；Modified mud freeze thawing resistance circulation ability can be improved one times；Infiltration coefficient reaches 10-6~10-8cm/s。
In addition, the production of the application consolidating agent is simple and convenient, and it is low in cost, be conducive to be mass produced.And the application Consolidating agent application method it is simple, operate it is easy, be suitble to large-scale promotion application.
Just illustrated below with several specific embodiments:
Component and proportion are referring to table 1 in consolidating agent described in embodiment 1-3:
Table 1 (unit: %)
Embodiment 1: taking Wuhan Iron and Steel Plant north lake sewage plant sludge, mixes mud according to 10% mass fraction, and mix rear mold consolidates, It is demoulded after 1 day, measurement coefficient of softing is 0.91 after maintenance 7 days；Antiacid alkali salt media chemistry erosion factor is 1.05；Infiltration coefficient For 2*10-8cm/s。
Embodiment 2: taking Quay of WISCO's Industrial Port sewage plant sludge, mixes mud according to 10% mass fraction, mix rear mold is solid Knot, demoulds after 1 day, and measurement coefficient of softing is 0.98 after maintenance 7 days；Antiacid alkali salt media chemistry erosion factor is 1.05；Infiltration Coefficient reaches 6*10-8cm/s。
Embodiment 3: taking two biochemical sewage factory sludge of Wuhan Iron and Steel Plant coking, mixes mud, mix rear mold according to 8% mass fraction Consolidation, demoulds after 1 day, and measurement coefficient of softing is 0.90 after maintenance 7 days；Antiacid alkali salt media chemistry erosion factor is 1.2；Infiltration Coefficient reaches 8*10-7cm/s。
Above-mentioned experiment shows that the consolidating agent production process energy consumption is small, and steel slag incorporation is big, and production cost is low, product quality It is good, it can effectively overcome the negative factors such as sewage plant high-moisture percentage, high organic content, faintly acid, under equal conditions, be modified Mud afterwards is impervious, water stabilizing greatly improves.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (4)

1. a kind of high water detritus sludge consolidating agent, which is characterized in that the consolidating agent includes: that slag is multiple according to mass percent meter Conjunction powder 5~25%, steel slag 10~45%, calcium formate 0.1%~0.5%, Bacillus pasteurii 0.5~1%, magnesium sulfate 3~ 10%, second class powered coal ash 35~50%, calcification bentonite 1~8%；Wherein, slag composite powder include slag powders 4.5~18%, Gypsum 0~5%, calcium lignosulfonate or FDN water-reducing agent 0.5~2%.
2. high water detritus sludge consolidating agent as described in claim 1, which is characterized in that the slag composite powder 10~20%, Steel slag 25~35%, magnesium sulfate 5~8%, calcification bentonite 7~8%.
3. the synthetic method of consolidating agent as described in the appended claim 1, which comprises
Each component is measured to weighing, drying to aqueous dose rate < 1%, the mixed component after being dried in proportion；
Mixed component after drying is put into closed mixing system, mix；
Mixed component after stirring is packed through baling press overlay film or air pressure is pumped into vacuum tank and stores, is obtained described solid Tie agent.
4. the application method of consolidating agent as described in the appended claim 1, which is characterized in that the method be by consolidating agent and sludge by It is 1~12:100 mixing according to mass ratio.
CN201810955370.9A 2018-08-21 2018-08-21 A kind of high water detritus sludge consolidating agent and its synthetic method Pending CN109160794A (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN109928591A (en) * 2019-04-18 2019-06-25 常州机电职业技术学院 Sludge curing agent based on waste recycling and sludge treatment method
CN110342764A (en) * 2019-06-06 2019-10-18 武汉二航路桥特种工程有限责任公司 The agent of organic sludge rapid-digestion and processing method based on microorganism predation technology
CN113582475A (en) * 2020-04-30 2021-11-02 天津富兰克能源科技有限公司 Sludge curing agent for municipal sewage treatment plant and curing treatment process thereof
CN115028391A (en) * 2022-03-31 2022-09-09 江苏科技大学 Preparation method of curing agent for activating and utilizing recycled concrete micro powder
CN117486575A (en) * 2024-01-03 2024-02-02 中建安装集团有限公司 Low-carbon solidified material with high organic matter residue soil content and preparation method and application thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109928591A (en) * 2019-04-18 2019-06-25 常州机电职业技术学院 Sludge curing agent based on waste recycling and sludge treatment method
CN110342764A (en) * 2019-06-06 2019-10-18 武汉二航路桥特种工程有限责任公司 The agent of organic sludge rapid-digestion and processing method based on microorganism predation technology
CN113582475A (en) * 2020-04-30 2021-11-02 天津富兰克能源科技有限公司 Sludge curing agent for municipal sewage treatment plant and curing treatment process thereof
CN115028391A (en) * 2022-03-31 2022-09-09 江苏科技大学 Preparation method of curing agent for activating and utilizing recycled concrete micro powder
CN115028391B (en) * 2022-03-31 2023-01-31 江苏科技大学 Preparation method of curing agent for activating and utilizing recycled concrete micro powder
CN117486575A (en) * 2024-01-03 2024-02-02 中建安装集团有限公司 Low-carbon solidified material with high organic matter residue soil content and preparation method and application thereof
CN117486575B (en) * 2024-01-03 2024-05-07 中建安装集团有限公司 Low-carbon solidified material with high organic matter residue soil content and preparation method and application thereof

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Application publication date: 20190108