CN107902857A - A kind of sludge stabilization agent for handling heavy metal and its preparation method and application - Google Patents
A kind of sludge stabilization agent for handling heavy metal and its preparation method and application Download PDFInfo
- Publication number
- CN107902857A CN107902857A CN201711336421.1A CN201711336421A CN107902857A CN 107902857 A CN107902857 A CN 107902857A CN 201711336421 A CN201711336421 A CN 201711336421A CN 107902857 A CN107902857 A CN 107902857A
- Authority
- CN
- China
- Prior art keywords
- parts
- heavy metal
- sludge
- stabilization agent
- dehydroactic acid
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention discloses a kind of sludge stabilization agent for handling heavy metal and its preparation method and application, the sludge stabilization agent, includes according to the raw material of parts by weight：7 15 parts of diethyl aminoethyl hexanoate, 11 19 parts of vinylacetate, 15 25 parts of montmorillonite, 26 parts of dehydroactic acid, 18 26 parts of oxidized starch.Montmorillonite is ground and then added dehydroactic acid solution, heating sealing 0.9 1h of stir process, then heats to 135 140 DEG C and continue to stir 55 60min at such a temperature, centrifuge washing and mixture A is made；Oxidized starch is ground, vinyl acetate solution is added and heats sealing stirring, then add mixture A and diethyl aminoethyl hexanoate heating stirring, supersound process, centrifuge washing, dry, calcine to obtain the final product.The present invention is to the heavy metal in sludge（Copper, lead, zinc, nickel, chromium）, organic matter（Hexachloro-benzene, benzo (a) pyrene, benzo (b) fluoranthene）Pollutant has good stabilization effect, and stabilisation speed is fast, and dosage is small, and stabilization effect is good, reduces the Leaching of Contaminated Sewage Sludge.
Description
Technical field
The present invention relates to technical field of sludge treatment, is specifically a kind of sludge stabilization agent for handling heavy metal and its preparation side
Method and application.
Background technology
Industrial enterprise can produce the largely sludge containing heavy metal and organic matter, and municipal sewage treatment in process of production
The final product of factory's sewage disposal also contains plurality of heavy metal and organic matter, heavy metal in contaminated river, lake and has
Machine thing is eventually entered into deposit by long term physical chemical process and bioprocess.These contain the bottom of heavy metal and organic matter
Mud and sludge, all suffer from how carrying out the active demand of safe handling, to they carry out safely, quickly, efficient processing be
One of emphasis problem and research topic in environmental improvement at present and protection field, and the hot subject in the field at present.
Stable curing technology is a kind of more mature and cost-effective technology, but curing agent used in the technology mainly uses water
The hydraulic materials such as mud, lime, gypsum, often so that the problems such as sludge or other solid wastes produce hardening, increase-volume, is unfavorable for follow-up
Disposal and utilization.All it is that there is similar adsorption with other although also having make raw material using montmorillonite in the prior art
The raw materials such as effect are compounded, and effect is although good, but stable contribution of the montmorillonite to sludge is small.Diethyl aminoethyl hexanoate is common growth
Conditioning agent, is applied less in sludge stabilization, even if using the effect for being also growth regulating.A kind of improved montmorillonite is needed to make it
Acted in sludge stabilization notable.
The content of the invention
It is an object of the invention to provide a kind of sludge stabilization agent for handling heavy metal and its preparation method and application, with solution
Problem certainly proposed in the above background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of sludge stabilization agent for handling heavy metal, includes according to the raw material of parts by weight：7-15 parts of diethyl aminoethyl hexanoate, vinyl acetate
11-19 parts of ester, 15-25 parts of montmorillonite, 2-6 parts of dehydroactic acid, 18-26 parts of oxidized starch.
As the further scheme of the present invention：The sludge stabilization agent of the processing heavy metal, according to the raw material bag of parts by weight
Include：9-13 parts of diethyl aminoethyl hexanoate, 13-17 parts of vinylacetate, 18-22 parts of montmorillonite, 3-5 parts of dehydroactic acid, oxidized starch 20-24
Part.
As the further scheme of the present invention：The sludge stabilization agent of the processing heavy metal, according to the raw material bag of parts by weight
Include：11 parts of diethyl aminoethyl hexanoate, 15 parts of vinylacetate, 0 part of montmorillonite 2,4 parts of dehydroactic acid, 22 parts of oxidized starch.
A kind of preparation method for the sludge stabilization agent for handling heavy metal, comprises the following steps：
1) sodium hydrate aqueous solution of 10-11 times of dehydroactic acid and its quality is mixed, dehydroactic acid solution is made；By vinegar
The ethanol of 15-16 times of vinyl acetate and its quality mixes, and vinyl acetate solution is made；
2) montmorillonite ground, cross 120-150 mesh sieves, then added dehydroactic acid solution, be warming up to 72-75 DEG C and at this
At a temperature of seal stir process 0.9-1h, then heat to 135-140 DEG C and continue at such a temperature stir 55-60min, centrifugation
Mixture A is made in separating, washing；
3) oxidized starch ground, cross 120-150 mesh sieves, added vinyl acetate solution, insert in reaction kettle and in 88-
Stir process 0.6-0.7h is sealed at a temperature of 90 DEG C, then adds mixture A and diethyl aminoethyl hexanoate and the stir process 1- at 65 DEG C
1.2h, is then ultrasonically treated 45min, centrifuges washing, and 4.5-5h is calcined in 390 DEG C of Muffle furnace up to stablizing after drying
Agent.
As the further scheme of the present invention：In step 1), the mass concentration of sodium hydroxide is in sodium hydrate aqueous solution
8-10%.
As the further scheme of the present invention：In step 2), mixing speed 150r/min.
As the further scheme of the present invention：In step 2), centrifugal rotational speed 3000r/min, centrifugation time 5-
10min。
As the further scheme of the present invention：In step 3), ultrasonic power 600W.
As the further scheme of the present invention：In step 3), mixing speed 180r/min.
As the further scheme of the present invention：In step 3), centrifugal rotational speed 14000r/min, centrifugation time 20-
30min。
Another object of the present invention is to provide application of the stabilizer in heavy metal pollution Treatment of Sludge.
Another object of the present invention is to provide application of the stabilizer in organic pollution Treatment of Sludge.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention using stabilizer made from above-mentioned raw materials and preparation process in sludge heavy metal (copper, lead, zinc, nickel,
Chromium), organic matter (hexachloro-benzene, benzo (a) pyrene, benzo (b) fluoranthene) pollutant there is good stabilization effect, stabilize speed
It hurry up, dosage is small, and stabilization effect is good, reduces the Leaching of Contaminated Sewage Sludge.Raw material of the present invention is simple, preparation process is simple
It is single, secondary pollution will not be produced, easy for construction, treating capacity is big, and quick, efficient, cost is low, product safety environmental protection, suitable for industry
Metaplasia is produced.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiments obtained without making creative work, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of sludge stabilization agent for handling heavy metal, including following raw material：Diethyl aminoethyl hexanoate 7kg, acetic acid
Vinyl acetate 11kg, montmorillonite 15kg, dehydroactic acid 2kg, oxidized starch 18kg.
The sodium hydrate aqueous solution that 10 times of mass concentrations of dehydroactic acid and its quality are 8% is mixed, dehydroactic acid is made
Solution；15 times of ethanol of vinylacetate and its quality is mixed, vinyl acetate solution is made.Montmorillonite is ground, crosses 120
Mesh sieve, then adds dehydroactic acid solution, is warming up to 72 DEG C and seals stir process 0.9h at such a temperature, then heats to
135 DEG C and continue to stir 55min at such a temperature, centrifuge washing and mixture A is made；Mixing speed is 150r/min, from
Heart rotating speed is 3000r/min, centrifugation time 5min.Oxidized starch is ground, crosses 120 mesh sieves, adds vinyl acetate solution,
Insert in reaction kettle and stir process 0.6h is sealed at a temperature of 88 DEG C, then add mixture A with diethyl aminoethyl hexanoate and at 65 DEG C
Lower stir process 1h, mixing speed 180r/min.Then 45min, ultrasonic power 600W are ultrasonically treated, centrifugation is washed
Wash, centrifugal rotational speed 14000r/min, centrifugation time 20-30min, 4.5-5h is calcined after drying in 390 DEG C of Muffle furnace
Up to stabilizer.
Embodiment 2
In the embodiment of the present invention, a kind of sludge stabilization agent for handling heavy metal, including following raw material：Diethyl aminoethyl hexanoate 15kg, vinegar
Vinyl acetate 19kg, montmorillonite 2 5kg, dehydroactic acid 6kg, oxidized starch 26kg.
The sodium hydrate aqueous solution that 11 times of mass concentrations of dehydroactic acid and its quality are 10% is mixed, dehydroactic acid is made
Solution；16 times of ethanol of vinylacetate and its quality is mixed, vinyl acetate solution is made.Montmorillonite is ground, crosses 150
Mesh sieve, then adds dehydroactic acid solution, is warming up to 75 DEG C and seals stir process 1h at such a temperature, then heats to 140
DEG C and continue to stir 60min at such a temperature, centrifuge washing and mixture A be made；Mixing speed is 150r/min, and centrifugation turns
Speed is 3000r/min, centrifugation time 10min.Oxidized starch is ground, crosses 150 mesh sieves, vinyl acetate solution is added, puts
Enter in reaction kettle and stir process 0.7h is sealed at a temperature of 90 DEG C, then add mixture A with diethyl aminoethyl hexanoate and at 65 DEG C
Stir process 1.2h, mixing speed 180r/min.Then 45min, ultrasonic power 600W are ultrasonically treated, centrifugation is washed
Wash, centrifugal rotational speed 14000r/min, centrifugation time 30min, 5h is calcined in 390 DEG C of Muffle furnace up to stablizing after drying
Agent.
Embodiment 3
In the embodiment of the present invention, a kind of sludge stabilization agent for handling heavy metal, including following raw material：Diethyl aminoethyl hexanoate 9kg, acetic acid
Vinyl acetate 13kg, montmorillonite 18kg, dehydroactic acid 3kg, oxidized starch 20kg.
The sodium hydrate aqueous solution that 11 times of mass concentrations of dehydroactic acid and its quality are 9 is mixed, it is molten that dehydroactic acid is made
Liquid；16 times of ethanol of vinylacetate and its quality is mixed, vinyl acetate solution is made.Montmorillonite is ground, crosses 150 mesh
Sieve, then adds dehydroactic acid solution, is warming up to 75 DEG C and seals stir process 1h at such a temperature, then heats to 140 DEG C
And continue to stir 60min at such a temperature, centrifuge washing and mixture A is made；Mixing speed is 150r/min, centrifugal rotational speed
For 3000r/min, centrifugation time 10min.Oxidized starch is ground, crosses 150 mesh sieves, vinyl acetate solution is added, inserts
Stir process 0.7h is sealed in reaction kettle and at a temperature of 90 DEG C, mixture A is then added and is stirred with diethyl aminoethyl hexanoate and at 65 DEG C
Mix processing 1.1h, mixing speed 180r/min.Then 45min, ultrasonic power 600W are ultrasonically treated, centrifuges washing,
Centrifugal rotational speed is 14000r/min, centrifugation time 30min, and 5h is calcined in 390 DEG C of Muffle furnace up to stabilizer after drying.
Embodiment 4
In the embodiment of the present invention, a kind of sludge stabilization agent for handling heavy metal, including following raw material：Diethyl aminoethyl hexanoate 13kg, vinegar
Vinyl acetate 17kg, montmorillonite 2 2kg, dehydroactic acid 5kg, oxidized starch 24kg.
The sodium hydrate aqueous solution that 11 times of mass concentrations of dehydroactic acid and its quality are 9 is mixed, it is molten that dehydroactic acid is made
Liquid；16 times of ethanol of vinylacetate and its quality is mixed, vinyl acetate solution is made.Montmorillonite is ground, crosses 150 mesh
Sieve, then adds dehydroactic acid solution, is warming up to 75 DEG C and seals stir process 1h at such a temperature, then heats to 140 DEG C
And continue to stir 60min at such a temperature, centrifuge washing and mixture A is made；Mixing speed is 150r/min, centrifugal rotational speed
For 3000r/min, centrifugation time 10min.Oxidized starch is ground, crosses 150 mesh sieves, vinyl acetate solution is added, inserts
Stir process 0.7h is sealed in reaction kettle and at a temperature of 90 DEG C, mixture A is then added and is stirred with diethyl aminoethyl hexanoate and at 65 DEG C
Mix processing 1.1h, mixing speed 180r/min.Then 45min, ultrasonic power 600W are ultrasonically treated, centrifuges washing,
Centrifugal rotational speed is 14000r/min, centrifugation time 30min, and 5h is calcined in 390 DEG C of Muffle furnace up to stabilizer after drying.
Embodiment 5
In the embodiment of the present invention, a kind of sludge stabilization agent for handling heavy metal, including following raw material：Diethyl aminoethyl hexanoate 11kg, vinegar
Vinyl acetate 15kg, montmorillonite 2 0kg, dehydroactic acid 4kg, oxidized starch 22kg.
The sodium hydrate aqueous solution that 11 times of mass concentrations of dehydroactic acid and its quality are 9 is mixed, it is molten that dehydroactic acid is made
Liquid；16 times of ethanol of vinylacetate and its quality is mixed, vinyl acetate solution is made.Montmorillonite is ground, crosses 150 mesh
Sieve, then adds dehydroactic acid solution, is warming up to 75 DEG C and seals stir process 1h at such a temperature, then heats to 140 DEG C
And continue to stir 60min at such a temperature, centrifuge washing and mixture A is made；Mixing speed is 150r/min, centrifugal rotational speed
For 3000r/min, centrifugation time 10min.Oxidized starch is ground, crosses 150 mesh sieves, vinyl acetate solution is added, inserts
Stir process 0.7h is sealed in reaction kettle and at a temperature of 90 DEG C, mixture A is then added and is stirred with diethyl aminoethyl hexanoate and at 65 DEG C
Mix processing 1.1h, mixing speed 180r/min.Then 45min, ultrasonic power 600W are ultrasonically treated, centrifuges washing,
Centrifugal rotational speed is 14000r/min, centrifugation time 30min, and 5h is calcined in 390 DEG C of Muffle furnace up to stabilizer after drying.
Comparative example 1
In addition to diethyl aminoethyl hexanoate is not contained, its raw material and preparation process are consistent with embodiment 5.
Comparative example 2
Only montmorillonite, its preparation process are consistent with embodiment 5.
Comparative example 3
Only montmorillonite, diethyl aminoethyl hexanoate, its preparation process are consistent with embodiment 5.
Comparative example 4
Each raw material is directly mixed, adds the other materials that embodiment 5 is added, the stir process 1.1h at 65 DEG C, stirring
Speed is 180r/min.Be then centrifuged for separating, washing, centrifugal rotational speed 14000r/min, centrifugation time 30min, after drying
5h is calcined in 390 DEG C of Muffle furnace up to stabilizer.The additive amount of each raw material is consistent with embodiment 5.
Embodiment 6
By organic pollution, the organic matter in the sludge is mainly that hexachloro-benzene, benzo (a) pyrene, benzo (b) are glimmering in Anhui somewhere
Anthracene, Cmax 22.08mg/kg, 11.35mg/kg and 14.61mg/kg., will after determining pollution range and depth after testing
Sludge stabilization agent respectively with embodiment 1-5, comparative example 1-4 stirs evenly after above-mentioned sludge is dug out.After maintenance 10 days, institute is detected
State the organic matter leaching concentration of organic pollution sludge.The results are shown in Table 1.
Table 1
| Hexachloro-benzene (mg/kg) | Benzo (a) pyrene (mg/kg) | Benzo (b) fluoranthene (mg/kg) | |
| Embodiment 1 | Do not detect | 1.8 | Do not detect |
| Embodiment 2 | Do not detect | 0.5 | Do not detect |
| Embodiment 3 | Do not detect | Do not detect | Do not detect |
| Embodiment 4 | Do not detect | Do not detect | Do not detect |
| Embodiment 5 | Do not detect | Do not detect | Do not detect |
| Comparative example 1 | 6.15 | 4.18 | 5.37 |
| Comparative example 2 | 19.08 | 10.82 | 13.02 |
| Comparative example 3 | 15.43 | 9.93 | 9.77 |
| Comparative example 4 | 3.15 | 6.29 | 8.24 |
The present invention using benzo (a) pyrene content in sludge after stabilizer treatment made from above-mentioned raw materials and preparation process significantly
Degree is reduced, and embodiment 3-5 is not detected, and hexachloro-benzene, benzo (b) fluoranthene content do not detect, and the present invention has organic pollution
There is extremely excellent deoxidization, degradation stabilization.
Embodiment 7
Exceeded heavy metal is copper, lead, zinc, nickel, chromium in the lake dredging bottom-mud of Anhui, and Cmax is respectively 2026mg/
kg、864mg/kg、3419mg/kg、2861mg/kg、925mg/kg.After determining pollution range and depth after testing, by above-mentioned dirt
Sludge stabilization agent respectively with embodiment 1-5, comparative example 1-4 stirs evenly after mud is dug out.After maintenance 7 days, the huge sum of money is detected
Belong to the Leaching Heavy Metals and content of Contaminated Sewage Sludge.The results are shown in Table 2.
Table 2
The present invention using copper in sludge after sludge stabilization agent processing made from above-mentioned raw materials and preparation process, lead, zinc, nickel,
The leaching concentration content of chromium is substantially less than comparative example 1-4, and embodiment 3-5 is more excellent not to be detected, the present invention to copper, lead, zinc, nickel,
The heavy metal contaminants such as chromium have extremely excellent stabilization.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (10)
1. a kind of sludge stabilization agent for handling heavy metal, it is characterised in that include according to the raw material of parts by weight：Diethyl aminoethyl hexanoate 7-15
Part, 11-19 parts of vinylacetate, 15-25 parts of montmorillonite, 2-6 parts of dehydroactic acid, 18-26 parts of oxidized starch.
2. the sludge stabilization agent of processing heavy metal according to claim 1, it is characterised in that according to the raw material bag of parts by weight
Include：9-13 parts of diethyl aminoethyl hexanoate, 13-17 parts of vinylacetate, 18-22 parts of montmorillonite, 3-5 parts of dehydroactic acid, oxidized starch 20-24
Part.
3. the sludge stabilization agent of processing heavy metal according to claim 1, it is characterised in that according to the raw material bag of parts by weight
Include：11 parts of diethyl aminoethyl hexanoate, 15 parts of vinylacetate, 0 part of montmorillonite 2,4 parts of dehydroactic acid, 22 parts of oxidized starch.
A kind of 4. preparation method of the sludge stabilization agent of processing heavy metal as described in claim 1-3 is any, it is characterised in that
Comprise the following steps：
1）10-11 times of sodium hydrate aqueous solution of dehydroactic acid and its quality is mixed, dehydroactic acid solution is made；By acetic acid second
The ethanol of 15-16 times of enester and its quality mixes, and vinyl acetate solution is made；
2）Montmorillonite is ground, crosses 120-150 mesh sieves, dehydroactic acid solution is then added, is warming up to 72-75 DEG C and in the temperature
Lower sealing stir process 0.9-1h, then heats to 135-140 DEG C and continues to stir 55-60min at such a temperature, centrifuge
Mixture A is made in washing；
3）Oxidized starch is ground, crosses 120-150 mesh sieves, vinyl acetate solution is added, inserts in reaction kettle and at 88-90 DEG C
At a temperature of seal stir process 0.6-0.7h, then add mixture A and diethyl aminoethyl hexanoate and the stir process 1-1.2h at 65 DEG C,
Then 45min is ultrasonically treated, centrifuges washing, 4.5-5h is calcined in 390 DEG C of Muffle furnace up to stabilizer after drying.
5. the preparation method of the sludge stabilization agent of processing heavy metal according to claim 4, it is characterised in that step 1）
In, the mass concentration of sodium hydroxide is 8-10% in sodium hydrate aqueous solution.
6. the preparation method of the sludge stabilization agent of processing heavy metal according to claim 4, it is characterised in that step 2）
In, centrifugal rotational speed 3000r/min, centrifugation time 5-10min.
7. the preparation method of the sludge stabilization agent of processing heavy metal according to claim 4, it is characterised in that step 3）
In, ultrasonic power 600W.
8. the preparation method of the sludge stabilization agent of processing heavy metal according to claim 4, it is characterised in that step 3）
In, centrifugal rotational speed 14000r/min, centrifugation time 20-30min.
9. application of the stabilizer as described in claim 1-3 is any in heavy metal pollution Treatment of Sludge.
10. application of the stabilizer as described in claim 1-3 is any in organic pollution Treatment of Sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336421.1A CN107902857A (en) | 2017-12-14 | 2017-12-14 | A kind of sludge stabilization agent for handling heavy metal and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336421.1A CN107902857A (en) | 2017-12-14 | 2017-12-14 | A kind of sludge stabilization agent for handling heavy metal and its preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107902857A true CN107902857A (en) | 2018-04-13 |
Family
ID=61854479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711336421.1A Pending CN107902857A (en) | 2017-12-14 | 2017-12-14 | A kind of sludge stabilization agent for handling heavy metal and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107902857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996885A (en) * | 2018-08-27 | 2018-12-14 | 华南理工大学 | A kind of montmorillonite type oxidized sludge dehydrating agent and its preparation method and application |
| CN110860133A (en) * | 2019-10-25 | 2020-03-06 | 佛山市南海区里水镇经济促进局 | Montmorillonite-containing wastewater filtering material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594697A (en) * | 1979-01-11 | 1980-07-18 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | Method of disposing of sludge of waste liquid produced in making starch-processed food |
| JP2004243312A (en) * | 2003-10-15 | 2004-09-02 | Kikuya Tamura | Production and using methods of environmental agents a and b as flocculating and purifying material using montmorillonite for flocculating sludge in various types of slurry, adsorbing and flocculating heavy metals and solid/liquid separating to form colorless clear water |
| CN104261651A (en) * | 2014-09-19 | 2015-01-07 | 山东瑞特精细化工有限公司 | Polyacrylamide sludge dehydrating agent and preparation method thereof |
| CN105753080A (en) * | 2016-05-06 | 2016-07-13 | 陈昌 | Metal-based water treatment material and preparation method thereof |
| CN107417060A (en) * | 2017-08-28 | 2017-12-01 | 湖南奇思环保有限公司 | A kind of curing agent and its synthetic method and application |
-
2017
- 2017-12-14 CN CN201711336421.1A patent/CN107902857A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5594697A (en) * | 1979-01-11 | 1980-07-18 | Kyoritsu Yuki Kogyo Kenkyusho:Kk | Method of disposing of sludge of waste liquid produced in making starch-processed food |
| JP2004243312A (en) * | 2003-10-15 | 2004-09-02 | Kikuya Tamura | Production and using methods of environmental agents a and b as flocculating and purifying material using montmorillonite for flocculating sludge in various types of slurry, adsorbing and flocculating heavy metals and solid/liquid separating to form colorless clear water |
| CN104261651A (en) * | 2014-09-19 | 2015-01-07 | 山东瑞特精细化工有限公司 | Polyacrylamide sludge dehydrating agent and preparation method thereof |
| CN105753080A (en) * | 2016-05-06 | 2016-07-13 | 陈昌 | Metal-based water treatment material and preparation method thereof |
| CN107417060A (en) * | 2017-08-28 | 2017-12-01 | 湖南奇思环保有限公司 | A kind of curing agent and its synthetic method and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996885A (en) * | 2018-08-27 | 2018-12-14 | 华南理工大学 | A kind of montmorillonite type oxidized sludge dehydrating agent and its preparation method and application |
| CN110860133A (en) * | 2019-10-25 | 2020-03-06 | 佛山市南海区里水镇经济促进局 | Montmorillonite-containing wastewater filtering material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105967266A (en) | Efficient sewage treatment agent and preparation method thereof | |
| CN104888718B (en) | A kind of method that sodium alginate/glutin cladding nano zero valence iron removes azo dyes in water removal | |
| CN105907991B (en) | A kind for the treatment of method for detoxication of the extraction of waste residue containing Cr VI recovery chromium | |
| CN107902857A (en) | A kind of sludge stabilization agent for handling heavy metal and its preparation method and application | |
| CN105923731B (en) | A kind of preparation method of industrial water drainage inorganic agent | |
| CN106396308A (en) | Excess activated sludge recycling method | |
| CN106745841A (en) | A kind of Industrial Waste Water Treatments environmentally friendly medicament and preparation method thereof | |
| CN106927652A (en) | A kind of environmentally-friendly sludge useless slurry curing agent and preparation method thereof | |
| CN105883996A (en) | Modified banana peel coagulant and preparation process thereof | |
| CN109231387A (en) | A kind of compound material for water treatment of stalk/aluminium polychloride and preparation method thereof | |
| CN110330196A (en) | Dredge stabilizer of heavy metal polluted bed mud and preparation method thereof and application method | |
| CN106927521A (en) | A kind of domestic sewage treating compound and preparation method thereof | |
| CN107935334A (en) | A kind of sludge stabilization agent and its preparation method and application | |
| CN108101343A (en) | A kind of bauxite ground mass sludge treating agent and its preparation method and application | |
| CN108046551A (en) | A kind of medical stone base sludge stabilization agent and its preparation method and application | |
| CN107986587A (en) | A kind of stabilizer for handling organic pollution sludge and its preparation method and application | |
| CN107879576A (en) | A kind of sludge treating agent based on oxidized starch and its preparation method and application | |
| CN108002674A (en) | A kind of sludge stabilization agent based on talcum and its preparation method and application | |
| CN106587303A (en) | Environment-friendly agent for industrial sewage treatment and preparation method thereof | |
| CN107986588A (en) | A kind of sludge treating agent based on clay and its preparation method and application | |
| CN108046552A (en) | A kind of modified montmorillonite used inorganic agent for handling sludge and its preparation method and application | |
| CN107892455A (en) | A kind of sludge treating agent for handling Organic Pollution and its preparation method and application | |
| CN108083589A (en) | A kind of sludge treating agent based on montmorillonite and its preparation method and application | |
| CN110342764A (en) | The agent of organic sludge rapid-digestion and processing method based on microorganism predation technology | |
| CN109879337A (en) | A kind of multiple-effect municipal wastewater inorganic agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
|
| RJ01 | Rejection of invention patent application after publication |