CN110330088A - A kind of alkaline heavy metal chelating agent and preparation and application - Google Patents
A kind of alkaline heavy metal chelating agent and preparation and application Download PDFInfo
- Publication number
- CN110330088A CN110330088A CN201910559353.8A CN201910559353A CN110330088A CN 110330088 A CN110330088 A CN 110330088A CN 201910559353 A CN201910559353 A CN 201910559353A CN 110330088 A CN110330088 A CN 110330088A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- chelating agent
- metal chelating
- alkaline heavy
- alkaline
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of alkaline heavy metal chelating agent and preparations and application, are related to environmental protection recovery technique field.Alkaline heavy metal chelating agent of the present invention includes carrier and active constituent；Active constituent includes modified starch 45-70%, calcium hypochlorite 10-15% and nano aluminium oxide 20-40%；Active constituent further includes PH regulator；It is 8.5-9.5 by the pH value that alkaline heavy metal chelating agent is dissolved in acquired solution in the water of 99 times of moles；Carrier includes peanut shell powder, stalk powder, sawdust powder and porous active carbon powder.The present invention by handling using modified starch, calcium hypochlorite and nano aluminium oxide as active constituent heavy metal, organism in water can be killed when overcoming existing heavy metal chelant use, to environmental concerns the problem of.
Description
Technical field
The invention belongs to environmental protection recovery technique field, more particularly to a kind of alkaline heavy metal chelating agent and preparation and
Using.
Background technique
Heavy metal pollution refers to the significant element of the bio-toxicities such as Hg, Cd, Pb, Cr and As and with the general of certain toxicity
Heavy metal, such as Zn, Cu, Co, Ni, Sn element and its compound pollution on the environment；It has it is micro i.e. can produce it is aobvious
The characteristics of writing poisonous effect, and cannot being degraded by microorganisms.
Therefore reinforce to the improvement to heavy metal wastewater thereby, heavy metal sewage sludge and heavy metal soil to the development of national economy and
Ensure that people's life security has a very important significance with health.
Currently used heavy metal chelating agent is mainly the derivative of aminodithioformic acid class compound, such as two sulphur of polyamines
For formates, polyethyleneimine amido xanthic acid, polyamine-epoxy chloropropane copolymer xanthates, polyacrylamide xanthates
Deng.There are the synthesis and application effect of this kind of heavy metal chelating agent of more document report, such as Publication No. CN1831020A
" a kind of synthetic method of dithioamino formic acid and diivinyl triamineethyl polymers " disclose a kind of macromolecule two of crosslinking
The synthesis of thiocarbamate and the application in heavy metal wastewater thereby.A kind of " polyethylene of Publication No. CN101173019A
Alcohol is the synthetic method of the high-molecular chelating agent of base chain " disclose a kind of macromolecule chela with higher degree of crosslinking and effective group
The synthetic method and application example of mixture.But in practical applications, this kind of heavy metal chelating agent has the disadvantage in that first is that having
Toxicity has organism in water lethal.Second is that needing the huge sum of money using excessive several times due to chelation group part vacancy etc.
Belonging to trapping agent just can make heavy metals ion up to standard, and causing that treated, waste water contains certain density heavy metal chelating agent,
To environmental concerns, and it is partially yellow to use water colour pool.
Summary of the invention
The purpose of the present invention is to provide a kind of alkaline heavy metal chelating agent and preparation and application, by with modified starch,
Calcium hypochlorite and nano aluminium oxide are handled heavy metal as active constituent, when overcoming the use of existing heavy metal chelant
Organism in water can be killed, to environmental concerns the problem of.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of alkaline heavy metal chelating agent, including carrier and active constituent；
The active constituent includes modified starch 45-70%, calcium hypochlorite 10-15% and nano aluminium oxide 20-40%；
The active constituent further includes PH regulator；
It is 8.5-9.5 by the pH value that the alkaline heavy metal chelating agent is dissolved in acquired solution in the water of 99 times of moles；
The carrier includes peanut shell powder, stalk powder, sawdust powder and porous active carbon powder.
Further, the modified starch includes in amino starch, carboxy starch, spherex and starch sulfonic acid acid esters
It is one or more.
Further, the PH regulator includes one of sodium carbonate, sodium bicarbonate, sodium sulfite, calcium oxide or more
Kind.
A kind of preparation method of alkaline heavy metal chelating agent, comprising:
Modified starch is stirred into 40-45 DEG C of warm water, while Nano-sized Alumina Powder is added and carrier stirs evenly；
It is milled after removing supernatant low temperature drying after natural sedimentation；
Above-mentioned gained milling is uniformly mixed pack with calcium hypochlorite, PH regulator.
Application of the alkaline heavy metal chelating agent in sewage treatment, Treatment of Sludge and soil treatment.
Further, the alkaline heavy metal chelating agent is specifically included applied to sewage treatment:
Above-mentioned alkaline heavy metal chelating agent is shed in water surface, is exposed 24-48 hours.
Further, the alkaline heavy metal chelating agent is specifically included applied to Treatment of Sludge:
It adds water and stirs to form flow-like mud into pending mud, alkaline heavy metal chelating agent is put into mud and stirs
Mix uniform, concentration/dehydration；The sludge of obtained dehydration is placed in drying unit, is dried and is sterilized.
Further, the alkaline heavy metal chelating agent is specifically included applied to soil treatment:
In the soil surrounding ridging of soil to be processed, depth of water 5-10cm is perfused；
Alkaline heavy metal chelating agent is added to expose 2-4 hours；
It is digged using mouldboard plow, continues exposure 2-4 hours after digging；
It reuses disc plough, deep ploughing machine or pivot plow and carries out farming, continue exposure 2-4 hours after farming, continue after exposure
Stand 6-12 hours.
During processing, calcium hypochlorite can hydrolyze, and generate calcium hydroxide and hypochlorous acid, and calcium hydroxide has highly basic
Property, modified starch is enhanced to the capture effect of heavy metal ion.
Simultaneously by fixation of the carrier to active component, convenient for being separated after processing.
The invention has the following advantages:
1, the modified starch that the present invention uses belongs to long-chain macromolecule substance, there is thousands of a chelating agent bases on every strand
Group, a heavy metal ion can be chelated by multiple polar chelation groups, its binding force is far longer than OH-、S2With a huge sum of money
The combination for belonging to ion, can get off from water body by heavy metal ion rapid precipitation；It simultaneously also can be by the weight in sludge and soil
The processing of metal ion faster sequestration.
2, alkaline heavy metal chelating agent provided by the invention has non-toxic, good to heavy metal ion combination effect, use
Convenient feature.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
Formulation Example 1
A kind of alkaline heavy metal chelating agent, including carrier and active constituent；
Active constituent includes amino starch 60%, calcium hypochlorite 10% and nano aluminium oxide 30%；
Active constituent further includes sodium bicarbonate；Alkaline heavy metal chelating agent is dissolved in acquired solution in the water of 99 times of moles
PH value is 9.
Carrier is peanut shell powder.
A kind of preparation method of alkaline heavy metal chelating agent, comprising:
Modified starch is stirred into 40-45 DEG C of warm water, while Nano-sized Alumina Powder is added and carrier stirs evenly；
It is milled after removing supernatant low temperature drying after natural sedimentation；
Above-mentioned gained milling is uniformly mixed pack with calcium hypochlorite, PH regulator.
Formulation Example 2
A kind of alkaline heavy metal chelating agent, including carrier and active constituent；
Active constituent includes carboxy starch 45%, calcium hypochlorite 15% and nano aluminium oxide 40%；
Active constituent further includes calcium oxide；Alkaline heavy metal chelating agent is dissolved in the PH of acquired solution in the water of 99 times of moles
Value is 9.5.
Carrier is sawdust powder.
Preparation method is the same as formulation Example 1.
Formulation Example 3
A kind of alkaline heavy metal chelating agent, including carrier and active constituent；
Active constituent includes spherex 35%, starch sulfonic acid acid esters 35%, calcium hypochlorite 10% and nano aluminium oxide
20%；
Active constituent further includes sodium sulfite；Alkaline heavy metal chelating agent is dissolved in acquired solution in the water of 99 times of moles
PH value is 8.5.
Carrier is peanut shell powder.
Preparation method is the same as formulation Example 1.
Application of the alkaline heavy metal chelating agent in sewage treatment, Treatment of Sludge and soil treatment.
Application Example 1
Alkaline heavy metal chelating agent is specifically included applied to sewage treatment:
Above-mentioned alkaline heavy metal chelating agent is shed in water surface, is exposed 24-48 hours.
Application Example 2
Alkaline heavy metal chelating agent is specifically included applied to Treatment of Sludge:
It adds water and stirs to form flow-like mud into pending mud, alkaline heavy metal chelating agent is put into mud and stirs
Mix uniform, concentration/dehydration；The sludge of obtained dehydration is placed in drying unit, is dried and is sterilized.
Application Example 3
Alkaline heavy metal chelating agent is specifically included applied to soil treatment:
In the soil surrounding ridging of soil to be processed, depth of water 5-10cm is perfused；
Alkaline heavy metal chelating agent is added to expose 2-4 hours；
It is digged using mouldboard plow, continues exposure 2-4 hours after digging；
It reuses disc plough, deep ploughing machine or pivot plow and carries out farming, continue exposure 2-4 hours after farming, continue after exposure
Stand 6-12 hours.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (8)
1. a kind of alkaline heavy metal chelating agent, it is characterised in that: including carrier and active constituent；
The active constituent includes modified starch 45-70%, calcium hypochlorite 10-15% and nano aluminium oxide 20-40%；
The active constituent further includes PH regulator；
It is 8.5-9.5 by the pH value that the alkaline heavy metal chelating agent is dissolved in acquired solution in the water of 99 times of moles；
The carrier includes peanut shell powder, stalk powder, sawdust powder and porous active carbon powder.
2. a kind of alkaline heavy metal chelating agent according to claim 1, which is characterized in that the modified starch includes amino
One of starch, carboxy starch, spherex and starch sulfonic acid acid esters are a variety of.
3. a kind of alkaline heavy metal chelating agent according to claim 1, which is characterized in that the PH regulator includes carbonic acid
One of sodium, sodium bicarbonate, sodium sulfite, calcium oxide are a variety of.
4. a kind of preparation method of alkaline heavy metal chelating agent as described in claim 1-3 is any one, which is characterized in that packet
It includes:
Modified starch is stirred into 40-45 DEG C of warm water, while Nano-sized Alumina Powder is added and carrier stirs evenly；It is natural
It is milled after removing supernatant low temperature drying after precipitating；
Above-mentioned gained milling is uniformly mixed pack with calcium hypochlorite, PH regulator.
5. a kind of application of alkaline heavy metal chelating agent as described in claim 1-3 is any one, which is characterized in that the alkalinity
Application of the heavy metal chelant in sewage treatment, Treatment of Sludge and soil treatment.
6. a kind of application of alkaline heavy metal chelating agent according to claim 5, which is characterized in that the alkaline heavy metal
Chelating agent is specifically included applied to sewage treatment:
Above-mentioned alkaline heavy metal chelating agent is shed in water surface, is exposed 24-48 hours.
7. a kind of application of alkaline heavy metal chelating agent according to claim 5, which is characterized in that the alkaline heavy metal
Chelating agent is specifically included applied to Treatment of Sludge:
It adds water and stirs to form flow-like mud into pending mud, alkaline heavy metal chelating agent is put into mud and stirs equal
Even, concentration/dehydration；The sludge of obtained dehydration is placed in drying unit, is dried and is sterilized.
8. a kind of application of alkaline heavy metal chelating agent according to claim 5, which is characterized in that the alkaline heavy metal
Chelating agent is specifically included applied to soil treatment:
In the soil surrounding ridging of soil to be processed, depth of water 5-10cm is perfused；
Alkaline heavy metal chelating agent is added to expose 2-4 hours；
It is digged using mouldboard plow, continues exposure 2-4 hours after digging；
It reuses disc plough, deep ploughing machine or pivot plow and carries out farming, continue exposure 2-4 hours after farming, persistently stood after exposure
6-12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559353.8A CN110330088A (en) | 2019-06-26 | 2019-06-26 | A kind of alkaline heavy metal chelating agent and preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559353.8A CN110330088A (en) | 2019-06-26 | 2019-06-26 | A kind of alkaline heavy metal chelating agent and preparation and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110330088A true CN110330088A (en) | 2019-10-15 |
Family
ID=68142721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910559353.8A Pending CN110330088A (en) | 2019-06-26 | 2019-06-26 | A kind of alkaline heavy metal chelating agent and preparation and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110330088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111567554A (en) * | 2020-06-17 | 2020-08-25 | 成都市图腾环保科技有限公司 | Synthetic runway surface disinfectant, preparation method thereof and synthetic runway surface disinfection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054848A (en) * | 2018-07-06 | 2018-12-21 | 北京润鸣环境科技有限公司 | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof and application method |
| CN109053912A (en) * | 2018-08-09 | 2018-12-21 | 山东东特环保科技有限公司 | A kind of preparation method of chelating agent and its application in heavy metal pollution medium |
-
2019
- 2019-06-26 CN CN201910559353.8A patent/CN110330088A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054848A (en) * | 2018-07-06 | 2018-12-21 | 北京润鸣环境科技有限公司 | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof and application method |
| CN109053912A (en) * | 2018-08-09 | 2018-12-21 | 山东东特环保科技有限公司 | A kind of preparation method of chelating agent and its application in heavy metal pollution medium |
Non-Patent Citations (1)
| Title |
|---|
| 中国材料研究学会等: "《中国战略新兴产业 新材料 环境工程材料》", 30 November 2018, 北京：中国铁道出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111567554A (en) * | 2020-06-17 | 2020-08-25 | 成都市图腾环保科技有限公司 | Synthetic runway surface disinfectant, preparation method thereof and synthetic runway surface disinfection method |
| CN111567554B (en) * | 2020-06-17 | 2021-05-18 | 成都市图腾环保科技有限公司 | Synthetic runway surface disinfectant, preparation method thereof and synthetic runway surface disinfection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2017225964A5 (en) | ||
| US11439150B2 (en) | Methods and compositions for treating algae using metal phenolic networks | |
| CN110330088A (en) | A kind of alkaline heavy metal chelating agent and preparation and application | |
| CN1306496A (en) | Method of removing harmful ions and remover for use in same | |
| Bordin et al. | Ecotoxicological effects of zinc oxide nanoparticles (ZnO-NPs) on aquatic organisms: Current research and emerging trends | |
| KR102309717B1 (en) | Disposal of oyster shell by sonochemistry | |
| JPH04267982A (en) | Immobilization of metal in solid state substance | |
| CN106472561B (en) | Blue algae inhibitor and its preparation method and application based on white carbon black | |
| Lakshmi et al. | Mercuric chloride-induced inhibition of different ATPases in the intestine of mudskipper, Boleophthalmus dentatus | |
| JP3511141B2 (en) | Water pollution and eutrophication improvement material | |
| AU2007200687B2 (en) | A seagrass based nutrient product for plant biological growth stimulation and a method for preparing the same | |
| KR20060103311A (en) | Composition to eliminate red tide | |
| CN114590918A (en) | Technical principle for blue algae treatment and application method thereof | |
| CN109231507A (en) | A kind of sewage-treating agent and preparation method thereof | |
| JP2001500061A (en) | Sterilization method of organic waste sludge | |
| CN105746513B (en) | It is a kind of for compound of dissipation bottom harmful organism and preparation method thereof | |
| RU2258687C2 (en) | Humus substance-base biopreparation | |
| KR102045926B1 (en) | Composition for promoting algae agglomeration | |
| JPS5814987A (en) | Pasteurization, flocculation and precipitation of limnetic or saltwater plankton | |
| KR20180029299A (en) | Water Treatment Method For Removing Water-bloom and Red Tide Using Mineral with Rich Sulfur Amino Acids | |
| KR20120138484A (en) | Cultivating substrate for breeding shellfish | |
| JP4213386B2 (en) | Inorganic electrolytic flocculant and method for modifying mud using the inorganic electrolytic flocculant | |
| JP5116030B2 (en) | Boiler ash treatment agent | |
| JP2007308518A (en) | Treating agent, method for producing treating agent and method for treating | |
| KR20030041919A (en) | The red tide killer |
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: 20191015 |
|
| RJ01 | Rejection of invention patent application after publication |