CN106277663A - Sludge solidifying agent and application, sludge curing soil - Google Patents
Sludge solidifying agent and application, sludge curing soil Download PDFInfo
- Publication number
- CN106277663A CN106277663A CN201610286857.3A CN201610286857A CN106277663A CN 106277663 A CN106277663 A CN 106277663A CN 201610286857 A CN201610286857 A CN 201610286857A CN 106277663 A CN106277663 A CN 106277663A
- Authority
- CN
- China
- Prior art keywords
- mud
- solidifying agent
- sludge
- sludge solidifying
- basis
- 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.)
- Pending
Links
Classifications
-
- 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
Abstract
A kind of sludge solidifying agent, on the basis of sludge solidifying agent gross weight, including: cement 66 82%；Acrylamide 1 6%；Ammonium persulfate. 0.01 0.12% and Gypsum Fibrosum 14.5 30.5%.And utilize above-mentioned sludge solidifying agent process the method for mud and process the sludge curing soil of preparation.By the firming agent prepared by associativity interpolation acrylamide, two kinds of macromolecular materials of Ammonium persulfate. and Gypsum Fibrosum combination, making solidification effect become apparent from, effect is more stable, and cheap.
Description
Technical field
The present invention relates to environmental conservation and engineering construction field, particularly relate to a kind of sludge solidifying agent, with
And the method using this firming agent process mud, and prepared sludge curing soil.
Background technology
Along with a large amount of construction of municipal sewage plant, sewage load and sludge yield the most constantly increase.
Mud through routine be dehydrated after, moisture content more than 80%, containing substantial amounts of microorganism, pathogen,
Heavy metal and organic pollution, if mishandling, can cause serious secondary pollution.The most dirty
The processing mode of mud is the most agricultural, burn and fill, and wherein fills because of convenient operation and management, fortune
Row cost is relatively low and is more used, and the most high amount of mud is not through any process, arbitrarily
Abandon.Owing to the moisture content of mud is high, soil mechanics poor performance, pollutant load is high, present process
It is too high often to there is environmental pollution, processing cost in mode, the most easily causes landfill yard engineering geology simultaneously
Disaster, therefore its safety processed is under suspicion.
For reaching the purpose of mud safe handling, often need to carry out before Sludge landfill improving soil mechanical properties etc.
Pretreatment, Normal practice both domestic and external is to add substantial amounts of sand, soil etc. during Sludge landfill to fill
Material, but do so not only makes Sludge landfill cost be greatly increased, and also reduces landfill yard simultaneously and effectively holds
Long-pending utilization ratio.In recent years, the curing/stabilizing method processing danger wastes starts dirty in city
Mud is used for reference in processing, the particularly application of cement-based solidified material.Research finds, dirty in city
In mud, interpolation ordinary cement, flyash, Calx can preferably improve its landfill soil mechanical properties；Sulphuric acid
Calcium, vessel slag also have facilitation to the solidification of municipal sludge.After municipal sludge solidification pretreatment, warp
Cross the maintenance of certain time can fill, or be used as the engineerings such as roadbed filling, can be greatly improved it
The safety processed.
Traditional method for sludge treatment is to add the single curing agent such as cement and Calx, also uses mineralising rubbish
Rubbish is as adding compound, and these modes need to add substantial amounts of material, and addition, more than 30%, increases
Add quantity of refuse, if meeting water again, it is also possible to reverse and become mud.Use cement solidification, during solidification
Between longer, generally more than 20 days, after solidification, mud hardened in bulk, and the later stage cannot exploit utilization.
The mode using mummification will consume other energy substantial amounts of, can burn if desired for adding substantial amounts of coal,
Processing cost is the highest, and the lime-ash after drying and other treatment needs special landfill yard digestion.In a word, pass
The method for sludge treatment cost height of system, cycle length, instability, possible secondary pollution problems.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of sludge solidifying agent and apply this firming agent
Process method and the sludge curing soil of mud.
For achieving the above object, according to an aspect of the present invention, it is provided that a kind of sludge solidifying agent, with dirt
On the basis of mud firming agent gross weight, including:
Cement 66-82%；
Acrylamide 1-6%；
Ammonium persulfate. 0.01-0.12%, and
Gypsum Fibrosum 14.5-30.5%.
A specific embodiments according to the present invention, on the basis of sludge solidifying agent gross weight, described third
Acrylamide content is 1-3%.
A specific embodiments according to the present invention, on the basis of sludge solidifying agent gross weight, described mistake
Ammonium sulphate content is 0.04-0.08%.
A specific embodiments according to the present invention, on the basis of sludge solidifying agent gross weight, described stone
Cream content is 14.5-30.5%.
According to an aspect of the present invention, it is provided that a kind of side applying above-mentioned sludge solidifying agent to process mud
Method, including step:
(1) each raw material components is prepared in such a way:
A: weighing mud and dry ground, wherein mud is 1: 3.5～4.5 with the weight ratio of dry ground, with mud
On the basis of dry ground weight sum, weigh the water of 30-50% weight,
B: on the basis of mud, soil, water three's weight summation, weighs 1.4-2.0% quick lime, 0.06-0.12%
Sodium hydroxide, sludge solidifying agent described in 20%；
(2) quick lime and sodium hydroxide are added in mud, place after stirring, form mud
Mixture；
(3) in container, mud mixture, sludge solidifying agent, dry ground and the water after placing is added,
Stir, form mud；
(4) mud is loaded in mould and carry out maintenance.
The mass ratio of the specific embodiments according to the present invention, step (1) described mud and dry ground
It is 1: 4.
A specific embodiments according to the present invention, the time placed in step (2) be 24 hours with
On.
A specific embodiments according to the present invention, step (4) is particularly as follows: load inwall by mud
It is coated with in the mould of vaseline, shakes closely knit rear mold outer wall parcel permeable watertight film.
A specific embodiments according to the present invention, in described step (4) temperature during maintenance and
Humidity is fixed, curing time 28 days.
According to an aspect of the present invention, it is provided that the sludge curing soil prepared by one method of any of the above.
Compared with prior art, the having the beneficial effects that of technical solution of the present invention:
(1) present invention utilizes sludge curing soil prepared by mud, has cost low, environmental protection, intensity
High and solidification duration is few, the solidification of heavy metal is strong and stability advantages of higher；
(2) by using the method solidification sludge of the present invention, thus traditional sludge is efficiently solved
Processing method cost height, cycle length, instability, possible secondary pollution problems；
(3) by using this sludge solidifying agent, various mud are had solidification, process stable.
(4) add acrylamide, two kinds of macromolecular materials of Ammonium persulfate. and Gypsum Fibrosum by associativity to tie
Firming agent prepared by conjunction, owing to acrylate copolymer is insoluble in general Organic substance, at room temperature
Relatively other macromolecular materials are stable, and reacted polymer becomes cotton-shaped, it is possible to preferably strengthen
Solidified earth structural, intensity and stability；Ammonium persulfate. is also a kind of height soluble in water
Molecular material, can make solidification rate add as the initiator of the multiple firming agent such as acrylamide
Hurry up, the product caking property generated after reaction is good, and in actual applications, the cost of Ammonium persulfate. is low
Honest and clean, it is suitable for a large amount of engineer applied.Gypsum Fibrosum main chemical compositions is calcium sulfate (CaSO4) hydrate,
With tricalcium aluminate effect in cement, generate entringite and stop tricalcium aluminate aquation, play slow setting and make
With, it is a kind of air hardening cementitious materials, it is possible to significantly improve the intensity of solidified earth.These three material
Expecting to add to make solidification effect become apparent from, effect is more stable, and cheap.
Accompanying drawing explanation
Fig. 1 is the method method stream that the application firming agent according to the present invention one specific embodiment processes mud
Cheng Tu.
Fig. 2 is the mould appearance schematic diagram used according to the present invention one specific embodiment.
Detailed description of the invention
General plotting according to the present invention, it is provided that a kind of sludge solidifying agent, with sludge solidifying agent gross weight
On the basis of, including: cement 66-82%；Acrylamide 1-6%；Ammonium persulfate. 0.01-0.12% and
Gypsum Fibrosum 14.5-30.5%.
For acrylamide content, it is preferred that on the basis of sludge solidifying agent gross weight, described propylene
Amide content is 3-5%；Acrylamide reaction generates acrylate copolymer, insoluble in general Organic substance,
At room temperature relatively other macromolecular materials are stable, and reacted polymer becomes cotton-shaped, it is possible to preferably
Strengthen the structural of solidified earth, intensity and stability.
For acrylamide content, it is preferred that on the basis of sludge solidifying agent gross weight, described over cure
Acid ammonium content is 0.04-0.08%.As the initiator of the multiple firming agent such as acrylamide, make solidification speed
Rate is accelerated, and the product caking property generated after reaction is good.
For acrylamide content, on the basis of sludge solidifying agent gross weight, described gypsum content is
14.5-30.5%.With tricalcium aluminate effect in cement, generate entringite and stop tricalcium aluminate aquation, rise
To deferred action, it is a kind of air hardening cementitious materials, it is possible to significantly improve the intensity of solidified earth.
Based on same inventive concept, it is provided that a kind of method processing mud, including step:
(1) each raw material components is prepared in such a way:
A: weighing mud and dry ground, wherein mud is 1: 3.5～4.5 with the weight ratio of dry ground, with mud
On the basis of dry ground weight sum, weigh the water of 30-50% weight,
B: on the basis of mud, soil, water three's weight summation, weighs 1.4-2.0% quick lime, 0.06-0.12%
Sodium hydroxide, sludge solidifying agent described in 20%；
(2) quick lime and sodium hydroxide are added in mud, place after stirring, form mud
Mixture；
(3) in container add place after containing mud mixture, sludge solidifying agent, dry ground and water,
Stir, form mud；
(4) mud is loaded in mould and carry out maintenance.
Wherein, in step (1), it is preferred that described mud is 1: 4 with the weight ratio of dry ground.
In step (2), the time preferably placed is more than 24 hours, further preferred placement
Time is 48-72 hour.
In step (4), concretely comprise the following steps: mud is loaded inwall and is coated with in the mould of vaseline,
Shake closely knit rear mold outer wall parcel permeable watertight film.
In described step (4), the temperature and humidity during maintenance is fixed, and preferably temperature is 24 DEG C,
Humidity 60, curing time 28 days.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with concrete real
Execute example, and referring to the drawings, the present invention is described in further detail.Following referring to the drawings to this
The explanation of bright embodiment is intended to explain the present general inventive concept of the present invention, and is not to be understood that
For a kind of restriction to the present invention.
Embodiment 1
Refer to Fig. 1, according to flow chart shown in Fig. 1, the method for concrete process mud is as follows:
(1) each raw material components is prepared in such a way:
A: weighing mud and dry ground, wherein mud is 1: 4 with the weight ratio of dry ground, with mud and dry ground
On the basis of weight sum, weigh the water of 40% weight,
B: on the basis of mud, soil, water three's weight summation, weigh 1.7% quick lime, 0.1% hydrogen
Sodium oxide, sludge solidifying agent described in 20%, on the basis of firming agent gross weight, it comprises cement 66%；
Acrylamide 1%；Ammonium persulfate. 0.01% and Gypsum Fibrosum 14.5%；
(2) quick lime and sodium hydroxide are added in mud, place 48 hours after stirring, shape
Become mud mixture；
(3) in container add place after containing mud mixture, sludge solidifying agent, dry ground and water,
Stir, form mud；
(4) as in figure 2 it is shown, mud is loaded in mould 1 and carry out maintenance.Detailed process is: will
The mud stirred loads in the fixed volume mould 1 being wiped with vaseline, shakes closely knit rear outer wall bag
Wrap up in permeable watertight film 2, during maintenance, keep temperature (25 DEG C) and humidity (about 60) to fix.
Embodiment 2
With embodiment 1, differ only in the content of sludge solidifying agent: on the basis of firming agent gross weight,
It comprises cement 70%；Acrylamide 2%；Ammonium persulfate. 0.04% and Gypsum Fibrosum 18%.
Embodiment 3
With embodiment 1, differ only in the content of sludge solidifying agent: on the basis of firming agent gross weight,
It comprises cement 73%；Acrylamide 3%；Ammonium persulfate. 0.06% and Gypsum Fibrosum 22.5%.
Embodiment 4
With embodiment 1, differ only in the content of sludge solidifying agent: on the basis of firming agent gross weight,
It comprises cement 76%；Acrylamide 4%；Ammonium persulfate. 0.08% and Gypsum Fibrosum 26%.
Embodiment 5
With embodiment 1, differ only in the content of sludge solidifying agent: on the basis of firming agent gross weight,
It comprises cement 82%；Acrylamide 6%；Ammonium persulfate. 0.12% and Gypsum Fibrosum 30.5%.
Comparative example 1
With embodiment 1, differ only in raw material components without sludge solidifying agent.
Embodiment is as shown in table 1 below with each constituent content in sludge solidifying agent in comparative example:
Table 1
| Cement | Acrylamide | Ammonium persulfate. | Gypsum Fibrosum | |
| Embodiment 1 | 66 | 1 | 0.01 | 14.5 |
| Embodiment 2 | 70 | 2 | 0.04 | 18 |
| Embodiment 3 | 73 | 3 | 0.06 | 22.5 |
| Embodiment 4 | 76 | 4 | 0.08 | 26 |
| Embodiment 5 | 82 | 6 | 0.12 | 30.5 |
| Comparative example | - | - | - | - |
(note: based on above each raw material components is all sludge solidifying agent weight total in corresponding embodiment, calculate it
Shared mass percent (%))
Performance detection and relative analysis:
The sludge curing soil of above-mentioned preparation is intercepted identical volume (Φ 39.1mm × 80mm), carry out as
Lower experiment, measures corresponding moisture content, intensity, the content of organic matter, content of beary metal respectively:
(1) moisture content uses weighting method after dried, weighs after being dried by sample；
(2) unconfined compressive strength of experiments of measuring sample；
(3) content of organic matter uses Muffle furnace weighting method after dried: dried to constant weight through 105 DEG C by wet mud
Quality become dry mud, then by dry mud sample through the quality of 600 DEG C of Muffle furnace calcinations to constant weight, formed
Ash, the content of organic matter=(dry mud weight-Ash weight)/dry mud weight × 100,
Wherein, moisture content, intensity, the content of organic matter measurement result as shown in table 2:
Table 2
| Moisture content (%) | Intensity (kPa) | The content of organic matter (%) | |
| Embodiment 1 | 58.15 | 280 | 10.15 |
| Embodiment 2 | 35.24 | 335 | 8.22 |
| Embodiment 3 | 32.34 | 350 | 8.02 |
| Embodiment 4 | 45.12 | 320 | 9.03 |
| Embodiment 5 | 52.30 | 296 | 9.64 |
| Comparative example | 78.19 | 60 | 12.15 |
By experiment, add the enforcement of the sludge solidifying agent of acrylamide, Ammonium persulfate. and Gypsum Fibrosum
Example intensity is higher, and moisture content is less, and the content of organic matter is less, and intensity in embodiment 2 and 3,
Moisture content and the content of organic matter reach optimum.
It addition, (4) are according to China " solid waste Leaching leaching method (GB/T 5086.1～2
-1997) ", leaching experiment uses upset vibration in can using upset vibration or horizontal oscillations, this experiment
Method is measured.
Sample test block is crushed, is placed in 2L extraction flask, be that 20: 1 (L/kg) calculates by liquid-solid ratio
Go out the volume of required digestion agent (ultra-pure water), add digestion agent, be fixed on convertible after covering tightly bottle cap
On oscillation device, regulation rotating speed is 30 ± 2r/min, and vibrate at 23 ± 2 DEG C 18 ± 2h.Shaking
When having gas to produce during swinging, timing should open extraction flask in fume hood, discharge excessive pressure.
By sample in filter-press, with 0.45 μm membrane filtration, filtrate is divided with Atomic Emission Spectrometer AES
Content of beary metal in analysis sample.
Measurement result sees table 3:
Table 3
Note: content of beary metal unit is mg/L
By content of beary metal experiments of measuring, add acrylamide, Ammonium persulfate. and the dirt of Gypsum Fibrosum
The content of beary metal leached in the embodiment of mud firming agent is less than in comparative example, and embodiment 2 and 3
The content of beary metal of middle leaching is minimum.
Particular embodiments described above, is carried out the purpose of the present invention, technical scheme and beneficial effect
Further describe it should be understood that the foregoing is only the specific embodiment of the present invention,
Be not limited to the present invention, all within the spirit and principles in the present invention, any amendment of being made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a sludge solidifying agent, on the basis of sludge solidifying agent gross weight, it is characterised in that including:
Cement 66-82%；
Acrylamide 1-6%；
Ammonium persulfate. 0.01-0.12%, and
Gypsum Fibrosum 14.5-30.5%.
Sludge solidifying agent the most according to claim 1, it is characterised in that with sludge solidifying agent
On the basis of gross weight, described acrylamide content is 1-3%.
Sludge solidifying agent the most according to claim 1, it is characterised in that with sludge solidifying agent
On the basis of gross weight, described Ammonium persulfate. content is 0.04-0.08%.
Sludge solidifying agent the most according to claim 1, it is characterised in that with sludge solidifying agent
On the basis of gross weight, described gypsum content is 14.5-30.5%.
5. the method that application sludge solidifying agent described in claim 1-4 any one processes mud, its
It is characterised by including step:
(1) each raw material components is prepared in such a way:
A: weighing mud and dry ground, wherein mud is 1: 3.5～4.5 with the weight ratio of dry ground, with mud
On the basis of dry ground weight sum, weigh the water of 30-50% weight,
B: on the basis of mud, soil, water three's weight summation, weighs 1.4-2.0% quick lime, 0.06-0.12%
Sodium hydroxide, sludge solidifying agent described in 20%；
(2) quick lime and sodium hydroxide are added in mud, place after stirring, form mud
Mixture；
(3) in container, mud mixture, sludge solidifying agent, dry ground and the water after placing is added,
Stir, form mud；
(4) mud is loaded in mould and carry out maintenance.
Method the most according to claim 5, it is characterised in that step (1) described mud with
The mass ratio of dry ground is 1: 4.
Method the most according to claim 5, it is characterised in that step (2) is placed time
Between be more than 24 hours.
Method the most according to claim 5, it is characterised in that step (4) is particularly as follows: incite somebody to action
Mud loads inwall and is coated with in the mould of vaseline, shakes closely knit rear mold outer wall parcel ventilative impermeable
Moisture film.
Method the most according to claim 5, it is characterised in that maintenance in described step (4)
The temperature and humidity of period is fixed, curing time 28 days.
10. according to the sludge curing soil prepared by claim 5-9 any one method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286857.3A CN106277663A (en) | 2016-04-29 | 2016-04-29 | Sludge solidifying agent and application, sludge curing soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286857.3A CN106277663A (en) | 2016-04-29 | 2016-04-29 | Sludge solidifying agent and application, sludge curing soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106277663A true CN106277663A (en) | 2017-01-04 |
Family
ID=57651211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610286857.3A Pending CN106277663A (en) | 2016-04-29 | 2016-04-29 | Sludge solidifying agent and application, sludge curing soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106277663A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162357A (en) * | 2017-04-18 | 2017-09-15 | 江苏明轩环保科技有限公司 | A kind of sludge curing material |
| CN107524112A (en) * | 2017-09-04 | 2017-12-29 | 江苏艺凯环保科技有限公司 | The system that environment-friendlysponge sponge component structure river channel ecology is made in a kind of recycling sludge |
| CN107759242A (en) * | 2017-09-20 | 2018-03-06 | 天津城建大学 | Sludge lightweight curing agent and sludge curing soil |
| CN107935468A (en) * | 2017-11-17 | 2018-04-20 | 浙江云玺建材有限公司 | A kind of method that unburned Environment-friendlyecological ecological brick is produced with mud |
| CN110372175A (en) * | 2019-08-30 | 2019-10-25 | 重庆艾克洛环保科技有限公司 | A kind of sludge conditioner and sludge drying processing method |
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466286Y (en) * | 2000-12-22 | 2001-12-19 | 中国石油天然气集团公司 | Pump house made of waste drilling mud and curing material |
| CN1792898A (en) * | 2005-11-22 | 2006-06-28 | 刘茂平 | Solidified agent for drilling well waste mud |
| CN101172749A (en) * | 2007-10-12 | 2008-05-07 | 河海大学 | Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant |
| CN101265070A (en) * | 2008-04-17 | 2008-09-17 | 高康 | Sludge solidifying agent and application thereof |
| CN104692608A (en) * | 2013-12-04 | 2015-06-10 | 青岛浩泰水务有限公司 | An efficient sludge dehydration agent |
| CN105038806A (en) * | 2015-05-23 | 2015-11-11 | 成都科衡环保技术有限公司 | High-molecular organic soil solidifying agent and synthetic method of same |
| CN105367009A (en) * | 2015-10-26 | 2016-03-02 | 广东工业大学 | Sludge curing agent and preparing method and application thereof |
-
2016
- 2016-04-29 CN CN201610286857.3A patent/CN106277663A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466286Y (en) * | 2000-12-22 | 2001-12-19 | 中国石油天然气集团公司 | Pump house made of waste drilling mud and curing material |
| CN1792898A (en) * | 2005-11-22 | 2006-06-28 | 刘茂平 | Solidified agent for drilling well waste mud |
| CN101172749A (en) * | 2007-10-12 | 2008-05-07 | 河海大学 | Solidifying agent for solidifying and stabilizing treatment of generated dewatered sludge in sewage plant |
| CN101265070A (en) * | 2008-04-17 | 2008-09-17 | 高康 | Sludge solidifying agent and application thereof |
| CN104692608A (en) * | 2013-12-04 | 2015-06-10 | 青岛浩泰水务有限公司 | An efficient sludge dehydration agent |
| CN105038806A (en) * | 2015-05-23 | 2015-11-11 | 成都科衡环保技术有限公司 | High-molecular organic soil solidifying agent and synthetic method of same |
| CN105367009A (en) * | 2015-10-26 | 2016-03-02 | 广东工业大学 | Sludge curing agent and preparing method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李永太等: "《低渗透油田聚合物驱油室内研究及现场试验》", 31 May 2007, 西安：陕西科学技术出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162357A (en) * | 2017-04-18 | 2017-09-15 | 江苏明轩环保科技有限公司 | A kind of sludge curing material |
| CN107524112A (en) * | 2017-09-04 | 2017-12-29 | 江苏艺凯环保科技有限公司 | The system that environment-friendlysponge sponge component structure river channel ecology is made in a kind of recycling sludge |
| CN107759242A (en) * | 2017-09-20 | 2018-03-06 | 天津城建大学 | Sludge lightweight curing agent and sludge curing soil |
| CN107935468A (en) * | 2017-11-17 | 2018-04-20 | 浙江云玺建材有限公司 | A kind of method that unburned Environment-friendlyecological ecological brick is produced with mud |
| CN107935468B (en) * | 2017-11-17 | 2020-10-13 | 浙江云玺建材有限公司 | Method for producing baking-free environment-friendly ecological brick by using sludge |
| CN110372175A (en) * | 2019-08-30 | 2019-10-25 | 重庆艾克洛环保科技有限公司 | A kind of sludge conditioner and sludge drying processing method |
| CN113102477A (en) * | 2021-03-16 | 2021-07-13 | 江苏亿金环保科技有限公司 | Treatment method of chromium-polluted soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106277663A (en) | Sludge solidifying agent and application, sludge curing soil | |
| Gupta et al. | Utilization of biochar from unwashed peanut shell in cementitious building materials–Effect on early age properties and environmental benefits | |
| KR100812828B1 (en) | Solidifying agent for sewage or wastewater sludge and covering material for waste reclamation land prepared using this | |
| Ahmad et al. | Improvement effect of pyrolyzed agro-food biochar on the properties of magnesium phosphate cement | |
| CN109721297A (en) | A kind of baking-free ceramicite and preparation method thereof containing sludge and building waste | |
| CN107032699A (en) | Salinized soil lightweight curing agent and its method for handling salinized soil | |
| US5732363A (en) | Solidifying material for radioactive wastes, process for solidifying radioactive wastes and solidified product | |
| Bai et al. | Corrosion effect of acid/alkali on cementitious red mud-fly ash materials containing heavy metal residues | |
| CN102503274A (en) | Curing agent for heavy-metal polluted bottom sludge | |
| CN107721375A (en) | A kind of method that sewage treatment plant's dewatered sludge suppresses non-autoclaved and unburned wall bulk | |
| CN107117843B (en) | A kind of method that nature of glass solidifies electroplating sludge | |
| CN104045298A (en) | Preparation method of phosphogypsum-based sludge drying agent and application of preparation method in drying sludge | |
| CN109160794A (en) | A kind of high water detritus sludge consolidating agent and its synthetic method | |
| Peng et al. | Study on the basic properties and mechanism of waste sludge solidified by magnesium phosphate cement containing different active magnesium oxide | |
| CN106478012A (en) | A kind of sludge curing agent and preparation method thereof | |
| CN113105169A (en) | Preparation method of ceramsite by taking riverway bottom sludge as raw material | |
| CA2161402A1 (en) | Solidifying material for radioactive wastes, process for solidifying radioactive wastes and solidified products | |
| Suo et al. | Influence and microscopic mechanism of the solid waste-mixture on solidification of Cu2+-contaminated soil | |
| CN103951298A (en) | Method for preparing titanium gypsum-based composite gel material and application of material in drying sludge | |
| CN110104916B (en) | Sludge curing agent and preparation method thereof | |
| CN106045243A (en) | Metallurgical water station sludge modifier and preparation method | |
| CN108706944B (en) | Phosphogypsum light board prepared from barium slag and preparation method thereof | |
| CN103708705A (en) | Silt curing agent and production method thereof | |
| Liu et al. | Preparation of high-performance lightweight materials based on the phosphogypsum-inorganic material system | |
| CN110668748A (en) | Method suitable for curing sludge incineration ash for making bricks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |