CN107324727A - Mud deodorant and mud deodorizing method - Google Patents

Mud deodorant and mud deodorizing method Download PDF

Info

Publication number
CN107324727A
CN107324727A CN201710663163.1A CN201710663163A CN107324727A CN 107324727 A CN107324727 A CN 107324727A CN 201710663163 A CN201710663163 A CN 201710663163A CN 107324727 A CN107324727 A CN 107324727A
Authority
CN
China
Prior art keywords
mud
deodorant
raw material
deodorizing method
well mixed
Prior art date
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.)
Granted
Application number
CN201710663163.1A
Other languages
Chinese (zh)
Other versions
CN107324727B (en
Inventor
倪晨曦
梁英杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Earth Engineering Technology Co Ltd
Original Assignee
Fujian Earth Engineering Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Earth Engineering Technology Co Ltd filed Critical Fujian Earth Engineering Technology Co Ltd
Priority to CN201710663163.1A priority Critical patent/CN107324727B/en
Publication of CN107324727A publication Critical patent/CN107324727A/en
Application granted granted Critical
Publication of CN107324727B publication Critical patent/CN107324727B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/004Sludge detoxification
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/14Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00767Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
    • C04B2111/00784Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes for disposal only
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The present invention provides a kind of mud deodorant and mud deodorizing method, and the raw material that above-mentioned mud deodorant is made up of following percentage by weight is made:Portland cement 9% 11%;Quick lime 4% 6%;Granulated blast-furnace slag 50% 60%;II grades of flyash of F classes 10% 15%;Strong oxidizer 10% 12%;Activity excitant 1% 2%;And additive 0.1% 0.2%.The problems such as present invention can solve the problem that mud deodorization cost height, complex process, the single limitation of processing in the prior art.

Description

Mud deodorant and mud deodorizing method
Technical field
The present invention relates to field of engineering technology, especially with respect to a kind of mud deodorant and mud deodorizing method.
Background technology
Urban river, landscape water body are generally static or poor fluidity circulation around circuit water body, and water surface area is small, easily pollution, The features such as water body self-purification ability is poor, adds a large amount of discharges of sanitary sewage and rubbish, easily causes suspension in water to increase, turbidity The content of increase, organic matter, bacterium and Escherichia coli increases, as summer temp is high, and water body blacks smelly, or even allows many mornings Experienced citizen shy away, and lose the work energy of city appearance water body.In order to ensure the normal flood discharge energy in city inland river lake river course Power and beautifying urban environment, China can all deploy large-scale river and lake dredging and desilting engineering every year.But produce every year The dredging desilting mud in these substantial amounts of inland river lakes is nowhere stacked.In recent years, China have about 90% urban rivers and lakes water body by To different degrees of pollution, especially the bed mud in river lake with the pollution of foul gas be to have a strong impact on urban environment, harmful to human One of healthy the problem of.How to solve the black ugly problem of urban river as early as possible has turned into the task of top priority that urban environment works.
How mud makes its innoxious and recycling, as heat after desilting dehydration compression minimizing processing The problem of point discusses research.At present, the processing of stench mud generally uses Physical, chemical method, combustion method, bioanalysis and joint Processing method etc., but there is cost height, complex process, handle single in these methods.
The content of the invention
Therefore, an object of the present invention is to provide a kind of mud deodorant and mud deodorizing method, existing to solve The problems such as having mud deodorization cost height in technology, complex process, handle single limitation.
For up to above-mentioned purpose, the present invention provides a kind of mud deodorant, and the mud deodorant is by following percentage by weight group Into raw material be made:Portland cement 9%-11%;Quick lime 4%-6%;Granulated blast-furnace slag 50%-60%;II grades of powder of F classes Coal ash 10%-15%;Strong oxidizer 10%-12%;Activity excitant 1%-2%;And additive 0.1%-0.2%.
As optional technical scheme, the moisture content of the mud pre-processed by drying equipment is 80-120%, and the silt Weak soil particle diameter≤75 μm of mud.
As optional technical scheme, the mud is the black smelly mud in river course, and the content of organic matter is 10- in the mud 15%.
As optional technical scheme, the portland cement is P.0 42.5R grades of portland cements, and the blast-furnace cinder is S95 grades of granulated blast-furnace slags, the calcium hydroxide content of the quick lime is more than 90%.
As optional technical scheme, the strong oxidizer is peromag or calper calcium peroxide.
As optional technical scheme, the activity excitant is ferrous sulfate, sodium sulphate, the mixture of alum.
As optional technical scheme, the additive is lignin.
The present invention also provides a kind of mud deodorizing method using mud deodorant as described above, comprises the following steps: (1) percentage by weight as shared by above-mentioned each raw material weighs each raw material, and each raw material is well mixed;(2) by well mixed silt Mud deodorant is mixed in proportion with mud;(3) by well mixed soil sample, shelving 5~24 hours;(4) take out fully anti- Soil sample after answering, compaction moulding, and it is put into maintenance 1~28 day in curing box.
As optional technical scheme, the ratio of the mud deodorant and the mud is 1:8-12.
As optional technical scheme, step (1) also includes:After being mixed by above-mentioned percentage by weight, through full-automatic dispensing Enter prebreaker, tube mill after microcomputer and carry out grinding, the specific surface area of the mud deodorant after grinding is more than 400cm2/ g。
Compared with prior art, the present invention promotes sludge hydrolytic using peromag or calper calcium peroxide and improves sludge anaerobic Digestion effect, and adsorb poisonous and harmful substance and post heavy metal, adds mud after a small amount of quick lime and has in alkaline environment and kill The effect of bacterium.Solid waste blast-furnace cinder is mixed simultaneously, and sulfate activating agent excites the activity of silica, with unnecessary magnesium The space between silicic acid magnesium precipitate, filler particles is generated, beneficial to hydrated cementitious coagulate is generated with unnecessary calcium and iron ion reaction Glue material, reduces the moisture content of sludge again.The real double effects for playing deodorizing sterilizing solidification.Mud after treatment, Avoid causing secondary pollution to environment during desilting, reduce the waste to non-renewable resources and can be used for engineering earth, Cultivated soil is afforested, fertilizer etc. obtains larger economic benefit.
It can be further understood on the advantages and spirit of the present invention by following detailed description of the invention.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention Content is not limited solely to the following examples.
The present invention provides a kind of mud deodorant, the raw material system that above-mentioned mud deodorant is made up of following percentage by weight Into:Portland cement 9%-11%;Quick lime 4%-6%;Granulated blast-furnace slag 50%-60%;II grades of flyash 10%- of F classes 15%;Strong oxidizer 10%-12%;Activity excitant 1%-2%;And additive 0.1%-0.2%.
Wherein, above-mentioned mud is, for example, the black smelly mud of city river, and it is the mud of high organic, and organic matter contains in mud Amount for example, 10-15%, the moisture content of mud is 80-120%, and weak soil particle diameter≤75 μm of the mud.
In addition, in present embodiment, Portland cement is P.0 42.5R grades of portland cements, and blast-furnace cinder is S95 Level granulated blast-furnace slag.Quick lime be CL90 quick limes, that is, the quick lime calcium hydroxide content more than 90%.It is above-mentioned strong Oxidant is peromag or calper calcium peroxide, and above-mentioned activity excitant is ferrous sulfate, sodium sulphate, the mixture of alum.It is additional Agent is, for example, lignin.
And preferably, above-mentioned Portland cement, blast-furnace cinder, flyash are the active material by high-temperature calcination Material.
And the present invention also provides a kind of mud deodorizing method using above-mentioned mud deodorant, comprises the following steps:
(1) percentage by weight as shared by above-mentioned each raw material weighs each raw material, and each raw material is well mixed;
(2) well mixed mud deodorant is mixed in proportion with mud;
(3) by well mixed soil sample, shelving 5~24 hours;
(4) fully reacted soil sample, compaction moulding are taken out, and is put into maintenance 1~28 day in curing box.
Wherein, the ratio of above-mentioned mud deodorant and the mud is, for example, 1:8-12.
Moreover, step (1) also includes:After being mixed by above-mentioned percentage by weight, enter pre- broken after full-automatic Burden By Microcomputer Broken machine, tube mill carry out grinding, the specific surface area of the mud deodorant after grinding is more than 400cm2/g。
Preferably, the compactness after being compacted that mud stirred is 95%.In temperature be 20 DEG C and humidity is more than 80% Under the conditions of carry out standard curing.
In addition, also including whipping process in the step of adding mud deodorant, control mud deodorant is uniform in mud Distribution.
Direct discharge of the black smelly primary pollution source of city river from municipal sewage and rubbish." black smelly " phenomenon is water body weight Organic matter anaerobic digestion and a kind of Biochemical Phenomena produced, in the case of the anoxic of river bed, anaerobe is decomposed organic Thing generation is substantial amounts of odour such as methane, hydrogen sulfide, ammonia, amine and other band volatile micromolecular compounds of peculiar smell, effusion The water surface enters air, is that water body is smelly.Meanwhile, the gas for being insoluble in water of generation, then carrying mud enters water in uphill process Body, makes water body black muddy.Water body weight anoxic also results in some heavy metals and occurs reduction reaction, and generation ferrous sulfide etc. makes water body Blackening.The present invention utilizes peromag, and calper calcium peroxide promotes sludge hydrolytic and improves anaerobic sludge digestion effect, and adsorbs poisonous Harmful substance posts heavy metal, and add mud after a small amount of quick lime has the effect of sterilization in alkaline environment.Mix simultaneously solid Body waste blast-furnace cinder, and sulfate activating agent excite the activity of silica, and silicic acid magnesium precipitate, filling are generated with unnecessary magnesium Void among particles, with unnecessary calcium and the iron ion reaction generation gelatinous mass beneficial to hydrated cementitious, reduce sludge again Moisture content.The real double effects for playing deodorizing sterilizing solidification.Mud after treatment, it is to avoid to ring during desilting Secondary pollution is caused in border, is reduced the waste to non-renewable resources and be can be used for engineering earth, afforests cultivated soil, and fertilizer etc. is obtained Larger economic benefit.
Specific embodiment 1:
The preparation of mud deodorant:
Weigh P.0 42.5R Portland cements, CL90 quick limes, S95 granulated blast-furnace slags, F.II grades of flyash, Peromag, activity excitant, additive, its percentage by weight is respectively 9%, 4%, 59.8%, 15%, 10%, 2%, 0.2%, the raw material of said ratio is mixed and levigate, its specific surface area is not less than 400m2/ kg, is then placed in 60 in baking oven DEG C drying 4 hours, that is, obtain mud deodorant.
The preparation of deodorization utilizing solidified earth from sludge:
The above-mentioned mud deodorant powder 4Kg prepared the and mud 50kg of water content 80% is weighed, stirring is poured into Mixed in machine after being well mixed, test specimen is prepared according to process step (1)-(4) above, stacking 24 hours can be changed Deodorization utilizing solidified earth from sludge after property.
Embodiment 2
The preparation of mud deodorant:
Weigh P.0 42.5R Portland cements, CL90 quick limes, S95 granulated blast-furnace slags, F.II grades of flyash, Calper calcium peroxide, activity excitant, additive, its percentage by weight is respectively 10%, 4%, 50%, 11.8%, 12%, 2%, 0.2%, the raw material of said ratio is mixed and levigate, its specific surface area is not less than 400m2/ kg, is then placed in 60 in baking oven DEG C drying 4 hours, that is, obtain mud deodorant.
The preparation of deodorization utilizing solidified earth from sludge:
The above-mentioned mud deodorant powder 5Kg prepared the and mud 50kg of water content 90% is weighed, stirring is poured into Mixed in machine after being well mixed, test specimen is prepared according to process step (1)-(4) above, stacking 10 hours can be changed Deodorization utilizing solidified earth from sludge after property.
Embodiment 3
The preparation of mud deodorant:
Weigh P.0 42.5R Portland cements, CL90 quick limes, S95 granulated blast-furnace slags, F.II grades of flyash, Peromag, activity excitant, additive, its percentage by weight is respectively 10%, 5%, 59%, 12%, 12%, 1%, 0.1%, the raw material of said ratio is mixed and levigate, its specific surface area is not less than 400m2/ kg, is then placed in 60 in baking oven DEG C drying 4 hours, that is, obtain mud deodorant.
The preparation of deodorization utilizing solidified earth from sludge:
The above-mentioned mud deodorant powder 5.5Kg prepared the and mud 50kg of water content 100% is weighed, pours into and stirs Mix mix in machine it is well mixed after, prepare test specimen according to process step (1)-(4) above, stack 24 hours it is i.e. available Modified deodorization utilizing solidified earth from sludge.
Embodiment 4
The preparation of mud deodorant:
Weigh P.0 42.5R Portland cements, CL90 quick limes, S95 granulated blast-furnace slags, F.II grades of flyash, Calper calcium peroxide, activity excitant, additive, its percentage by weight is respectively 11%, 6%, 53.9%, 12%, 15%, 2%, 0.1%, the raw material of said ratio is mixed and levigate, its specific surface area is not less than 400m2/ kg, is then placed in 60 in baking oven DEG C drying 4 hours, that is, obtain mud deodorant.
The preparation of deodorization utilizing solidified earth from sludge:
The above-mentioned mud deodorant powder 6Kg prepared the and mud 50kg of water content 120% is weighed, stirring is poured into Mixed in machine after being well mixed, test specimen is prepared according to process step (1)-(4) above, stacking 24 hours can be changed Deodorization utilizing solidified earth from sludge after property.
Utilizing solidified earth from sludge after the deodorization that embodiment 1-4 is obtained carries out performance test, is as a result listed in table 2.Wherein table 1 is The raw material composition of embodiment 1-4 mud deodorant.
The raw material composition unit of the mud deodorant of table 1:Percentage by weight (%)
The performance test results of the not deodorization utilizing solidified earth from sludge of be the same as Example of table 2
Wherein, after 24 hours, four groups of mud are without obvious stink, and as seen from the above table, with age, the drop of moisture content Low, test specimen unconfined compressive strength strengthens therewith, this formula, can both make mud deodorization, its physical and mechanical properties can be improved again, is made Its moisture content is reduced, compression strength enhancing, not only reduce mud stack or with pungent smelly of embarrassing of being brought in transportation Gas pollutes, and modified mud and can be may also pass through as stemming operation purposes after simple processing as greening cultivated soil.
By the above detailed description of preferred embodiments, it is intended to more clearly describe the feature and spirit of the present invention, And not protection scope of the present invention is any limitation as with above-mentioned disclosed preferred embodiment.On the contrary, its purpose It is intended to cover being arranged in the scope of the claims of the invention to be applied for various changes and tool equality.Cause This, apllied scope of the claims of the invention should make most broad explanation according to above-mentioned explanation, to cause it Cover all possible change and the arrangement of tool equality.

Claims (10)

1. a kind of mud deodorant, it is characterised in that the raw material that the mud deodorant is made up of following percentage by weight is made:
2. mud deodorant as claimed in claim 1, it is characterised in that the moisture content of the mud pre-processed by drying equipment For 80-120%, and weak soil particle diameter≤75 μm of the mud.
3. mud deodorant as claimed in claim 2, it is characterised in that the mud is the black smelly mud in river course, and in the mud The content of organic matter is 10-15%.
4. mud deodorant as claimed in claim 1, it is characterised in that the portland cement is 42.5R grades of silicate of P.O Cement, the blast-furnace cinder is S95 grades of granulated blast-furnace slags, and the calcium hydroxide content of the quick lime is more than 90%.
5. mud deodorant as claimed in claim 1, it is characterised in that the strong oxidizer is peromag or calper calcium peroxide.
6. mud deodorant as claimed in claim 1, it is characterised in that the activity excitant is ferrous sulfate, sodium sulphate, bright The mixture of alum.
7. mud deodorant as claimed in claim 1, it is characterised in that the additive is lignin.
8. a kind of mud deodorizing method of mud deodorant using as described in any one in claim 1-7, its feature exists In comprising the following steps:
(1) percentage by weight as shared by above-mentioned each raw material weighs each raw material, and each raw material is well mixed;
(2) well mixed mud deodorant is mixed in proportion with mud;
(3) by well mixed soil sample, shelving 5~24 hours;
(4) fully reacted soil sample, compaction moulding are taken out, and is put into maintenance 1~28 day in curing box.
9. mud deodorizing method as claimed in claim 8, it is characterised in that the ratio of the mud deodorant and the mud is 1: 8-12。
10. mud deodorizing method as claimed in claim 8, it is characterised in that step (1) also includes:By above-mentioned weight percent After mixing, prebreaker, tube mill progress grinding are entered after full-automatic Burden By Microcomputer, makes the mud deodorant after grinding Specific surface area be more than 400cm2/g。
CN201710663163.1A 2017-08-05 2017-08-05 Sludge deodorant and sludge deodorizing method Active CN107324727B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710663163.1A CN107324727B (en) 2017-08-05 2017-08-05 Sludge deodorant and sludge deodorizing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710663163.1A CN107324727B (en) 2017-08-05 2017-08-05 Sludge deodorant and sludge deodorizing method

Publications (2)

Publication Number Publication Date
CN107324727A true CN107324727A (en) 2017-11-07
CN107324727B CN107324727B (en) 2020-01-14

Family

ID=60225776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710663163.1A Active CN107324727B (en) 2017-08-05 2017-08-05 Sludge deodorant and sludge deodorizing method

Country Status (1)

Country Link
CN (1) CN107324727B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112156645A (en) * 2020-09-23 2021-01-01 柳州市宝净科技有限公司 Composite biological enzyme deodorant and preparation method thereof
CN112456952A (en) * 2020-11-27 2021-03-09 贵州城晖环保科技有限公司 Raw soil building material based on waste pit mud and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1787974A (en) * 2003-04-23 2006-06-14 凯米拉·开米公司 Method of treating digested sludge
CN102267795A (en) * 2011-06-17 2011-12-07 中国科学院武汉岩土力学研究所 Dewatered sludge drying method of wastewater treatment plant
WO2015156541A1 (en) * 2014-04-10 2015-10-15 주식회사 폴리원 Method for manufacturing soil brick having high strength and low absorption rate using unfiring forming method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1787974A (en) * 2003-04-23 2006-06-14 凯米拉·开米公司 Method of treating digested sludge
CN102267795A (en) * 2011-06-17 2011-12-07 中国科学院武汉岩土力学研究所 Dewatered sludge drying method of wastewater treatment plant
WO2015156541A1 (en) * 2014-04-10 2015-10-15 주식회사 폴리원 Method for manufacturing soil brick having high strength and low absorption rate using unfiring forming method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112156645A (en) * 2020-09-23 2021-01-01 柳州市宝净科技有限公司 Composite biological enzyme deodorant and preparation method thereof
CN112156645B (en) * 2020-09-23 2021-04-27 柳州市宝净科技有限公司 Composite biological enzyme deodorant and preparation method thereof
CN112456952A (en) * 2020-11-27 2021-03-09 贵州城晖环保科技有限公司 Raw soil building material based on waste pit mud and preparation method and application thereof

Also Published As

Publication number Publication date
CN107324727B (en) 2020-01-14

Similar Documents

Publication Publication Date Title
Chen et al. Sludge biochar as a green additive in cement-based composites: Mechanical properties and hydration kinetics
KR100919620B1 (en) The artificial soil composition and its manufacturing method that using the industrial by-product for recovering an abandoned quarry mining
KR100812828B1 (en) Solidifying agent for sewage or wastewater sludge and covering material for waste reclamation land prepared using this
CN102276128B (en) Treatment method of dehydrated sludge in domestic sewage treatment plant
CN104045298B (en) A kind of preparation method of phosphogypsum base sludge drying agent and the application on dewatered sludge thereof
Antiohos et al. Influence of quicklime addition on the mechanical properties and hydration degree of blended cements containing different fly ashes
CN102746023B (en) Constructed wetland matrix filling material for simultaneous nitrogen and phosphorus removal and its preparation method
CN101955345A (en) Neutral inorganic composite material for dehydration, solidification and modification of high water content sludge
CN105753279B (en) A kind of silt/sludge solidifying agent and its application method
CN105174686A (en) Curing agent for curing and stabilizing municipal dewatered sludge and preparation method and application of curing agent
CN107721375A (en) A kind of method that sewage treatment plant's dewatered sludge suppresses non-autoclaved and unburned wall bulk
CN102815853A (en) Harmless mud processing method for sewage treatment plant
CN107311576A (en) A kind of low alkalinity ecological concrete and preparation method thereof
CN105036516A (en) Preparation method of industrial waste residue-based sludge drying agent
Payá et al. Sewage sludge ash
CN107324727A (en) Mud deodorant and mud deodorizing method
Guo et al. Performance and microstructure of sustainable cementitious materials mixed by municipal sewage sludge ash, slag, and fly ash
CN115594373A (en) Solid waste-based sludge curing agent and preparation method thereof
CN101343149B (en) Sewage water body refuse type cement and method of preparing the same
CN107586003A (en) Sludge treating agent and method for sludge treatment
CN105347653A (en) Sludge dehydration conditioning agent and its preparation method and use method
Abd-El-Aziz et al. Characteristics and durability of cements containing fly ash and limestone subjected to Caron's Lake water
KR19990073569A (en) method for manufacturing compost by using sewage sluge
CN107381990A (en) A kind of method of sludge curing
He et al. Utilization of soda residue and ground granulated blast furnace slag to stabilize/solidify sewage sludge in leachate soaking environment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
CB03 Change of inventor or designer information

Inventor after: Ni Chenxi

Inventor after: Xia Chang

Inventor after: Liang Yingjie

Inventor before: Ni Chenxi

Inventor before: Liang Yingjie

CB03 Change of inventor or designer information
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant