CN104876515A - Aluminum base gelling and curing agent, preparation method and application thereof - Google Patents
Aluminum base gelling and curing agent, preparation method and application thereof Download PDFInfo
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- CN104876515A CN104876515A CN201510161480.4A CN201510161480A CN104876515A CN 104876515 A CN104876515 A CN 104876515A CN 201510161480 A CN201510161480 A CN 201510161480A CN 104876515 A CN104876515 A CN 104876515A
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Abstract
The invention discloses an aluminum base gelling and curing agent, which comprises calcium aluminate, sulfur aluminum cement and an early-strengthening coagulant aid, wherein the mass ratio of the above three parts is : (1-3) : (6.5-8.5) : 0.5. The invention also discloses a preparation method of the above aluminum base gelling and curing agent. According to the method, the calcium aluminate, the sulfur aluminum cement and the early-strengthening coagulant aid, in the mass ratio of the above three parts is : (1-3) : (6.5-8.5) : 0.5, are ground, sieved, mixed and stacked up in a cone shape. After that, samples are pressed flat, and peripheral samples are stacked up centrad again in a cone shape and then pressed flat. So repeatedly for several times, and then the aluminum base gelling and curing agent can be obtained. The invention also discloses a method for treating the dredged sediment by means of the above aluminum base gelling and curing agent. Waste and gravels in the mud of the dredged sediment are separated, and then the cationic-type polyacrylamide is added to thicken and dehydrate the dredged sewage. After that, the aluminum base gelling and curing agent is added and mixed with the dredged sewage, and the mixture is stirred. Meanwhile, a water reducer is added and mixed uniformly with the above mixture. After the dehydration and solidification process, the obtained product is subjected to stabilization maintenance. The aluminum base gelling and curing agent is higher in economic, social and environmental benefits.
Description
Technical field
The invention belongs to environmental technology field, relate to a kind of aluminium base gelling curing agent, preparation method and application thereof.
Background technology
The current that surface water body is received comprise city overland runoff, the rear sanitary sewage of process and trade effluent, the particulate material of entrained with and dissolved matter in these current, can sedimentation be there is under certain hydraulics and chemistry, biological action, change water body deposit into.Water body deposit is in forming process, by series of physical chemical actions such as absorption, complexing, chemical reactions, the heavy metal entering water body is gathered together, when the envrionment conditions of water and Sediment Interface changes, the heavy metal contaminants be enriched in settling can discharge again again, become the endogenous pollution of water surrounding, serious threat is caused to water ecological setting and current natural flow, Sediment Dredging has become important step indispensable in the water surrounding comprehensive regulation, is also to cut down surface water body endogenous pollution the most directly efficient manner.
Cement system dehydration hardener (cement, lime, gypsum and other calcium magnesium salts, calcium and magnesium oxides) produces basicity due to its cheap price, stronger viscosifying power and hydration reaction, the static stabilization of the inorganic pollutants such as heavy metal and become the bottom-mud dewatering solidifying agent of comparatively main flow at present.In addition, also have and study based on the industrial waste such as flyash, the waste gypsum feature similar to cement integral part, by modified for the industrial waste treatment technology being applied to bed mud curing/stabilizing.Existing bottom-mud dewatering curing technology can improve bed mud mechanical strength to a certain extent, but the problem such as ubiquity dosage too high (usual water ratio is greater than 10% of 90% bed mud weight in wet base), increase-volume are larger, disposal process comparatively large to bed mud pH value range of influence may introduce secondary pollution, cured base mud resource utilization ways is less.And the potential recycling mode of bed mud comprises, and the ubiquity energy-output ratios such as firing porous brick, calcining cement clinker are large, treatment scale is little, be difficult to dissolve on a large scale the shortcomings such as pending bed mud.Needed for express highway roadbed filling, earth volume is huge, earth volume needed for every kilometer about 6.5 ten thousand m
3, but the excavation of fresh clay can cause soil erosion, vegetation deterioration, all causes totally unfavorable impact to the development of the eubiosis and agroforestry.
Dredged bed mud has that generation is large, water ratio is high, heavy metal and persistence organic pollutant content higher and leach the harm such as risk is larger, existing disposal options is stacked to rent stockyard temporarily, fail to realize the efficient resource utilization of Dredged bed mud, and not carrying out Anti-seeping technology owing to stacking place, in bed mud, the pollutent such as heavy metal also exists serious risk of environmental pollution to surrounding water and soil.Therefore, for after bed mud solidification and stabilization as engineering construction filling soil mechanical property requirements, developing low-cost, high efficiency Dredged bed mud dehydrating and curing technology, expand Dredged bed mud recycling approach, has important using value for realizing bed mud safe handling disposal.
Summary of the invention
For the defect of prior art, the object of this invention is to provide a kind of increase-volume than little, cheap aluminium base gelling curing agent.
Another object of the present invention is to provide a kind of preparation method of above-mentioned aluminium base gelling curing agent.
3rd object of the present invention is to provide a kind of method utilizing above-mentioned aluminium base gelling curing agent disposal Dredged bed mud, and Dredged bed mud can be made to obtain resource utilization recycling as packing material.
To achieve these goals, the technical solution used in the present invention is as follows:
The invention provides a kind of aluminium base gelling curing agent, be made up of the component of following mass ratio:
Calcium aluminate: sulphur aluminium cement: early strong coagulant aids=(1 ~ 3): (6.5 ~ 8.5): 0.5.
CaO, Al in described calcium aluminate
2o
3massfraction is than being 1:1, and molecular formula is 12CaO7Al
2o
3.
Described morning, strong coagulant aids was anhydrous CaSO
4or calcium formiate.
Present invention also offers a kind of preparation method of above-mentioned aluminium base gelling curing agent, comprise the following steps:
Laboratory preparation method adopts cone method: be (1 ~ 3) by mass ratio: (6.5 ~ 8.5): the calcium aluminate of 0.5, sulphur aluminium cement and early strong coagulant aids grind, sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Industrial production process adopts ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is (1 ~ 3): (6.5 ~ 8.5): 0.5 directly adds in Dredged bed mud.
Sieving in described laboratory preparation method is the sieve of 0.08mm.
Sieving in described industrial production process is the sieve of 2mm.
Present invention also offers a kind of method utilizing above-mentioned aluminium base gelling curing agent disposal Dredged bed mud, comprise the following steps:
Rubbish sandstone in the mud of Dredged bed mud is separated, then add cationic-type polyacrylamide (CPAM) and make Dredged bed mud thickening, add aluminium base gelling curing agent mix and blend, add water reducer to be uniformly mixed simultaneously, the laggard line stabilization maintenance of dehydrating and curing, after process, Dredged bed mud reaches roadbase backfill soil performance requriements.
Water ratio >=95% of described Dredged bed mud.
The dosage of described cationic-type polyacrylamide is 0.2% of Dredged bed mud wet basis quality.
Water ratio≤90% after described Dredged bed mud thickening.
The dosage of described aluminium base gelling curing agent is 1% of Dredged bed mud wet basis quality after thickening.
Described water reducer is naphthalene water reducer, calcium lignin sulphonate, polycarboxylate water-reducer or aliphatic water reducing agent.
The dosage of described water reducer is 0.2% of Dredged bed mud wet basis quality after thickening.
The time of described stabilization maintenance is at least 2 ~ 10d.
The present invention compared with the existing technology, has the following advantages and beneficial effect:
Starting material selected by aluminium base gelling curing agent disclosed by the invention are easy to get, and dosage is low, and increase-volume is than little, cheap, are obtained by molecular designing proportioning method of calculation.
Aluminium base gelling curing agent of the present invention is disposed in the method for Dredged bed mud, the throwing out of CPAM and hydrophilic radical is utilized to improve Dredged bed mud water retention property, aluminium base gelling curing agent is utilized to make to generate column, fibrous crystals in solidification bed mud system, and then intersect anchor ear sediment particles, fill sediment particles gap, strengthen curing system mechanical strength, utilize anhydrous CaSO
4morning help by force solidifying effect to shorten curing age, utilize the three-dimensional adsorption effect of cement water reducing agent calcium lignin sulphonate to increase cement particle surface Zeta potential, improve the dispersity of aluminium base gelling curing agent in Dredged bed mud system, promote that sufficient reacting carries out.
Present invention achieves the accurately collaborative of each component chemical characteristic of aluminium base gelling curing agent to utilize; synchronously achieve Dredged bed mud water retention property to improve; dehydrating and curing and heavy metal stabilization; reach the cured modified processing target of Dredged bed mud of low dosage, low increase-volume ratio, shorter curing age; wide by Dredged bed mud resource utilization purposes after cured modified process, the mass-producing safe handling achieving Dredged bed mud is disposed.
The present invention, while realizing Dredged bed mud low cost, wide scale security process disposal and recycling, reduces the fresh clay of civil engineering and exploits the ecological damage and the comsumption of natural resources that cause, have higher economy, society and environmental benefit.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the aluminium base gelling curing agent of the embodiment of the present invention disposes the method for Dredged bed mud.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further detailed explanation.
The present invention's raw materials used is technical grade; Calcium aluminate: wherein CaO, Al
2o
3massfraction ratio is approximately 1:1, molecular formula 12CaO7Al
2o
3.
Embodiment 1
The cured modified process of Jiaxing City city river Dredged bed mud
(1) aluminium base gelling curing agent preparation
Laboratory preparation method adopts cone method: be the calcium aluminate of 3:6.5:0.5, sulphur aluminium cement, early strong coagulant aids grinding by mass ratio, cross 0.08mm sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Industrial production process adopts ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing 2mm screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is that 3:6.5:0.5 directly adds in Dredged bed mud.Early strong coagulant aids is anhydrous CaSO
4.
Prepare aluminium base gelling curing agent 150g as stated above.
(2) the cured modified process of Dredged bed mud
Dredged bed mud Basic Characteristics the results are shown in Table 1.
Table 1
Fig. 1 is the schematic flow sheet that the aluminium base gelling curing agent of the embodiment of the present invention disposes the method for Dredged bed mud.Get 350g water ratio about 98% Dredged bed mud sample described in table 1, rubbish sandstone in the mud of Dredged bed mud is separated, after adding the CPAM of 0.2wt%, treat bed mud free setting 1 ~ 2h, skim supernatant liquor, to add in (1) obtained aluminium base gelling curing agent 1wt%, 0.2wt% naphthalene water reducer again, after fully stirring under 5000r/min condition centrifuge dehydration 10min.
(3) maintenance is stablized
By the solidification bed mud abandoning supernatant through centrifuge dehydration in (2), solid fraction is closely knit inserts height about 70mm, diameter is about in the tubular die of 35mm, form a cylindrical test specimen to be measured, the demoulding after maintenance 24h in 25 DEG C of environment, be transferred to natural air drying 6d under room temperature condition, then measure sediment sample without lateral compressive strength and liquid limit, plastic limit, plasticity index by the described methods involving of " earthwork test rule " (SL237-1999).
(4) the cured modified experimental result of bed mud
When calcium aluminate: sulphur aluminium cement: when early the mass ratio of strong coagulant aids is 3:6.5:0.5, after process, the maximum value of Dredged bed mud unconfined compression strength is 170.81kPa, higher than the unconfined compression strength 150kPa of engineering clay, after process, Dredged bed mud liquid limit is less than 50%, and plasticity index 15.02 is between 15 ~ 20.
" integrated wastewater discharge standard " (GB8978-2002) propose the concept of first kind pollutent, by total cadmium, total chromium, sexavalent chrome, total arsenic, total lead, total nickel etc. can produce long-range dysgenic 13 kinds of pollutents at environment or animals and plants body accumulation to HUMAN HEALTH and be classified as first kind pollutent, the present embodiment is with reference to relevant the defining of first kind pollutent, " solid waste Leaching leaching method sulfonitric method " (HJ/T299) standard method is adopted to have detected above-mentioned Cd, Cr, As, Pb, Cu, the Leaching of the heavy metals such as Ni, result is as shown in table 2:
Table 2
| Heavy metal kind | As | Cd | Cr | Cu | Ni | Pb | Zn |
| Leaching concentration mg/L | 0.03299 | Do not detect | Do not detect | 0.002684 | Do not detect | Do not detect | Do not detect |
Leaching experiment result shows: after process, Dredged bed mud Leaching of Heavy Metals concentration to be correlated with limit value lower than " water environment quality standard " (GB3838-2002) II class water body, heavy metal free risk of environmental pollution.
In cumulated volume embodiment, after process, Dredged bed mud Mechanics Performance Testing and Leaching of Heavy Metals experimental result are known, and after the aluminium base gelling curing agent of the present invention disposes the method process of Dredged bed mud, Dredged bed mud meets the native related performance indicators requirement of roadbase backfill.
Embodiment 2---the cured modified process pilot experiment of Jiaxing City city river Dredged bed mud
(1) aluminium base gelling curing agent preparation
Laboratory preparation method adopts cone method: be the calcium aluminate of 1:8.5:0.5, sulphur aluminium cement, early strong coagulant aids grinding by mass ratio, cross 0.08mm sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Industrial production process adopts ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing 2mm screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is that 1:8.5:0.5 directly adds in Dredged bed mud.Early strong coagulant aids is anhydrous CaSO
4.
Prepare aluminium base gelling curing agent 10kg as stated above.
(2) adding of agent
Rubbish sandstone in the mud of Dredged bed mud is separated, the quality that Dredged bed mud and the settling tank leading portion of water ratio 98.3% add is after the CPAM of 0.2wt% mixes, treat that Dredged bed mud free setting concentrates 1 ~ 2h, supernatant liquor overflow, after adopting spiral pump pumping 1t concentrated, Dredged bed mud is in mix and blend tank, to add in (1) obtained aluminium base gelling curing agent 10kg, 2kg calcium lignin sulphonate again, after fully stirring under 0.6MPa pressure condition filter-press dehydration 15min.
(3) maintenance is stablized
By the solidification bed mud maintenance in 25 DEG C of room temperature environments through filter-press dehydration in (2), natural air drying maintenance 2 ~ 3d, after then measuring process by the described methods involving of " earthwork test rule " (SL237-1999), Dredged bed mud sample is without lateral compressive strength, liquid limit, plastic limit, plasticity index, CBR value, Leaching Heavy Metals.
(4) experimental result
Adopt " solid waste Leaching leaching method sulfonitric method " (HJ/T299) standard method to have detected the Leaching of the heavy metals such as Cd, Cr, As, Pb, Cu, Ni, result is as shown in table 3:
Table 3
| Heavy metal kind | As | Cd | Cr | Cu | Ni | Pb | Zn |
| Leaching concentration mg/L | 0.034496 | Do not detect | 0.01422 | 0.01679 | Do not detect | Do not detect | Do not detect |
Leaching experiment result shows: after process, Dredged bed mud Leaching of Heavy Metals concentration to be correlated with limit value lower than " water environment quality standard " (GB3838-2002) II class water body, heavy metal free risk of environmental pollution.
Unconfined compression strength 172.38kPa, liquid limit 41.68%, plastic limit 23.71%, plasticity index 17.97, CBR
5.0value 11.02%, above mechanical performance index also all meets the requirement of roadbase backfill soil related performance indicators.
Embodiment 3---the cured modified process of Shanghai City city river Dredged bed mud
(1) aluminium base gelling curing agent preparation
Laboratory preparation method adopts cone method: be the calcium aluminate of 2:7.5:0.5, sulphur aluminium cement, early strong coagulant aids grinding by mass ratio, cross 0.08mm sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Industrial production process adopts ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing 2mm screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is that 2:7.5:0.5 directly adds in Dredged bed mud.Early strong coagulant aids is calcium formiate.
Prepare aluminium base gelling curing agent 10kg as stated above.
(2) adding of agent
Rubbish sandstone in the mud of Dredged bed mud is separated, the quality that Dredged bed mud and the settling tank leading portion of water ratio 98% add is after the CPAM of 0.2wt% mixes, treat that Dredged bed mud free setting concentrates 1 ~ 2h, supernatant liquor overflow, after adopting spiral pump pumping 1t concentrated, Dredged bed mud is in mix and blend tank, to add in (1) obtained aluminium base gelling curing agent 10kg, 2kg polycarboxylate water-reducer again, after fully stirring under 0.6MPa pressure condition filter-press dehydration 15min.
(3) maintenance is stablized
By the solidification bed mud maintenance in 25 DEG C of room temperature environments through filter-press dehydration in (2), natural air drying maintenance 2 ~ 3d, after then measuring process by the described methods involving of " earthwork test rule " (SL237-1999), Dredged bed mud sample is without lateral compressive strength, liquid limit, plastic limit, plasticity index.
(4) experimental result
Unconfined compression strength 169.59kPa, liquid limit 34.73%, plastic limit 16.24%, plasticity index 18.49, above mechanical performance index also all meets the requirement of roadbase backfill soil related performance indicators.
Embodiment 4---the cured modified process of Jiaxing City suburb lake dredging bottom-mud
(1) aluminium base gelling curing agent preparation
Laboratory preparation method adopts cone method: be the calcium aluminate of 1:7.5:0.5, sulphur aluminium cement, early strong coagulant aids grinding by mass ratio, cross 0.08mm sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Industrial production process adopts ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing 2mm screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is that 1:7.5:0.5 directly adds in Dredged bed mud.Early strong coagulant aids is calcium formiate.
Prepare aluminium base gelling curing agent 10kg as stated above.
(2) adding of agent
Rubbish sandstone in the mud of Dredged bed mud is separated, the quality that Dredged bed mud and the settling tank leading portion of water ratio 95% add is after the CPAM of 0.2wt% mixes, treat that Dredged bed mud free setting concentrates 1 ~ 2h, supernatant liquor overflow, after adopting spiral pump pumping 1t concentrated, Dredged bed mud is in mix and blend tank, to add in (1) obtained aluminium base gelling curing agent 10kg, 2kg aliphatic water reducing agent again, after fully stirring under 0.6MPa pressure condition filter-press dehydration 15min.
(3) maintenance is stablized
By the solidification bed mud maintenance in 25 DEG C of room temperature environments through filter-press dehydration in (2), natural air drying maintenance 2 ~ 3d, after then measuring process by the described methods involving of " earthwork test rule " (SL237-1999), Dredged bed mud sample is without lateral compressive strength, liquid limit, plastic limit, plasticity index.
(4) experimental result
Unconfined compression strength 167.21kPa, liquid limit 35.33%, plastic limit 19.83%, plasticity index 15.5, above mechanical performance index also all meets the requirement of roadbase backfill soil related performance indicators.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and General Principle described herein is applied in other embodiments and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, do not depart from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (10)
1. an aluminium base gelling curing agent, is characterized in that: be made up of the component of following mass ratio:
Calcium aluminate: sulphur aluminium cement: early strong coagulant aids=(1 ~ 3): (6.5 ~ 8.5): 0.5.
2. aluminium base gelling curing agent according to claim 1, is characterized in that: CaO, Al in described calcium aluminate
2o
3massfraction is than being 1:1, and molecular formula is 12CaO7Al
2o
3;
Or strong coagulant aids is anhydrous CaSO described morning
4or calcium formiate.
3. a preparation method for the aluminium base gelling curing agent described in claim 1 or 2, is characterized in that: comprise the following steps:
Adopt cone method: be (1 ~ 3) by mass ratio: (6.5 ~ 8.5): the calcium aluminate of 0.5, sulphur aluminium cement and early strong coagulant aids grind, sieve, mixed-stacking becomes coniform, then flatten, flatten after surrounding sample is piled up again formation circular cone to center, several times obtain aluminium base gelling curing agent so repeatedly;
Or employing ball mill, by calcium aluminate, the fully grinding respectively of sulphur aluminium cement, early strong coagulant aids, after crossing screen cloth, according to calcium aluminate: sulphur aluminium cement: early the mass ratio of strong coagulant aids is (1 ~ 3): (6.5 ~ 8.5): 0.5 directly adds in Dredged bed mud.
4. the preparation method of aluminium base gelling curing agent according to claim 3, is characterized in that: described in the sieving in cone method that fall be the sieve of 0.08mm;
Or describedly cross the sieve that sieving in after screen cloth is 2mm.
5. the method utilizing the aluminium base gelling curing agent described in claim 1 or 2 to dispose Dredged bed mud, it is characterized in that: comprise the following steps: the rubbish sandstone in the mud of Dredged bed mud is separated, then add cationic-type polyacrylamide and make Dredged bed mud thickening, add aluminium base gelling curing agent mix and blend, add water reducer to be uniformly mixed, the laggard line stabilization maintenance of dehydrating and curing simultaneously.
6. the method utilizing aluminium base gelling curing agent to dispose Dredged bed mud according to claim 5, is characterized in that: water ratio >=95% of described Dredged bed mud.
7. the method utilizing aluminium base gelling curing agent to dispose Dredged bed mud according to claim 5, is characterized in that: the dosage of described cationic-type polyacrylamide is 0.2% of Dredged bed mud wet basis quality.
8. the method utilizing aluminium base gelling curing agent to dispose Dredged bed mud according to claim 5, is characterized in that: water ratio≤90% after described Dredged bed mud thickening.
9. the method utilizing aluminium base gelling curing agent to dispose Dredged bed mud according to claim 5, is characterized in that: the dosage of described aluminium base gelling curing agent is 1% of Dredged bed mud wet basis quality after thickening.
10. the method utilizing aluminium base gelling curing agent to dispose Dredged bed mud according to claim 5, is characterized in that: described water reducer is naphthalene water reducer, calcium lignin sulphonate, polycarboxylate water-reducer or aliphatic water reducing agent;
Or the dosage of described water reducer is 0.2% of Dredged bed mud wet basis quality after thickening;
Or the time of described stabilization maintenance is at least 2 ~ 10d.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776785A (en) * | 2016-01-18 | 2016-07-20 | 同济大学 | Diluting, conditioning and curing treatment method for sludge subjected to non-standardized treatment |
| CN106277858A (en) * | 2016-08-16 | 2017-01-04 | 中电建水环境治理技术有限公司 | Lake, river is gushed polluted bed mud and is processed and receive a micron modified adhesive gel material |
| CN113501635A (en) * | 2021-07-23 | 2021-10-15 | 深圳市天健(集团)股份有限公司 | Environment-friendly dredging and curing modification integrated equipment for dredged sediment |
| CN113526810A (en) * | 2021-07-20 | 2021-10-22 | 深圳市市政工程总公司 | Dredged sediment curing method based on mixed curing agent |
| CN113526809A (en) * | 2021-07-20 | 2021-10-22 | 深圳市市政工程总公司 | Dredged sediment curing modification method based on organic conditioner |
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| CN101289850A (en) * | 2008-06-03 | 2008-10-22 | 凌贤长 | Saline soil curing agent and technical applications thereof |
| CN102815917A (en) * | 2012-09-06 | 2012-12-12 | 焦作市新筑王材料科技有限公司 | Gas extraction hole sealing material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289850A (en) * | 2008-06-03 | 2008-10-22 | 凌贤长 | Saline soil curing agent and technical applications thereof |
| CN102815917A (en) * | 2012-09-06 | 2012-12-12 | 焦作市新筑王材料科技有限公司 | Gas extraction hole sealing material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776785A (en) * | 2016-01-18 | 2016-07-20 | 同济大学 | Diluting, conditioning and curing treatment method for sludge subjected to non-standardized treatment |
| CN105776785B (en) * | 2016-01-18 | 2019-08-06 | 同济大学 | A kind of dilution conditioning solidification processing method for non-standard disposition sludge |
| CN106277858A (en) * | 2016-08-16 | 2017-01-04 | 中电建水环境治理技术有限公司 | Lake, river is gushed polluted bed mud and is processed and receive a micron modified adhesive gel material |
| CN106277858B (en) * | 2016-08-16 | 2018-03-16 | 中电建水环境治理技术有限公司 | River lake gush polluted bed mud processing receive micron be modified binder materials |
| CN113526810A (en) * | 2021-07-20 | 2021-10-22 | 深圳市市政工程总公司 | Dredged sediment curing method based on mixed curing agent |
| CN113526809A (en) * | 2021-07-20 | 2021-10-22 | 深圳市市政工程总公司 | Dredged sediment curing modification method based on organic conditioner |
| CN113501635A (en) * | 2021-07-23 | 2021-10-15 | 深圳市天健(集团)股份有限公司 | Environment-friendly dredging and curing modification integrated equipment for dredged sediment |
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|---|---|
| CN104876515B (en) | 2017-08-25 |
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