CN110015742A - A kind of water hyacinth charcoal load nano zero-valence iron composite material and preparation and application - Google Patents
A kind of water hyacinth charcoal load nano zero-valence iron composite material and preparation and application Download PDFInfo
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- CN110015742A CN110015742A CN201910360067.9A CN201910360067A CN110015742A CN 110015742 A CN110015742 A CN 110015742A CN 201910360067 A CN201910360067 A CN 201910360067A CN 110015742 A CN110015742 A CN 110015742A
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- water hyacinth
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- valence iron
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- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
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- 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
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention belongs to environment functional material field, a kind of water hyacinth charcoal load nano zero-valence iron composite material and preparation and application are disclosed.Water hyacinth is shredded after clean dry, charing process at a temperature of inert atmosphere and 300~600 DEG C is ground up, sieved and is placed on immersion treatment in acid solution, dry after being washed to neutrality, obtains water hyacinth charcoal；Iron containing compounds are dissolved in water, then dehydrated alcohol is added, water hyacinth charcoal is added to be uniformly mixed, reducing agent solution is added dropwise to be stirred to react, reaction is aged after being added dropwise, separation removal supernatant liquid, gained precipitate washed drying, obtain water hyacinth charcoal load nano zero-valence iron composite material.Preparation method of the invention is simple and easy to operate, raw material is easy to get, the water hyacinth charcoal load Nanoscale Iron being prepared is uniformly dispersed, and efficiently solves the problems such as water hyacinth pollutes passivation easy to reunite with nano particle, improves material to the removal effect of heavy metal contaminants antimony.
Description
Technical field
The invention belongs to environment functional material fields, and in particular to a kind of water hyacinth charcoal load nano zero valence iron is compound
Material and preparation and application.
Background technique
Antimony be height endanger noxious material and can carcinogen, the dirt of priority acccess control is classified as by European Union and Environmental Protection Agency
Contaminate object.Currently, the increasingly increase of global antimony usage amount leads it into environment and pollutes cause drinking water source, human health is seriously threatened
With the safety of ecological environment.
Currently, scientists solve water pollution problems by synthesizing and being modified to obtain Zero-valent Iron.Zero-valent Iron conduct
A kind of green, economic environment remediation technology, by favor in organic and heavy metal pollution soil/underwater prevention.Thing
Not only removal efficiency is high for the bright Zero-valent Iron reducing heavy metal pollutant of real example, but also simple process, and operating cost is low, practical.
Nano zero valence iron overcomes that its grain diameter is big compared with Zero-valent Iron, few for the active site of effecting reaction
Disadvantage improves the specific surface area and adsorption activity of particle.The study found that carrying nano zero valence iron in montmorillonite, bentonite
On the carriers such as active carbon, the characteristics of can not only keeping nano zero valence iron strong reducing property, but also its stability can be enhanced, more
Add and is suitable for engineer application.Compared to above-mentioned carrier material, charcoal not only possesses good pore structure and biggish specific surface
Product, is easy to the evenly dispersed of nano zero valence iron, and raw material is easily obtained, cost price is cheap, absorption property is superior, belongs to ring
Border friendly material.Therefore, preferable future in engineering applications ought to be had by carrying nano zero valence iron using charcoal.But utilize life
Object charcoal takes nano zero valence iron and removes the research of removing heavy metals rarely seen report.Also, it there are no research charcoal at present and take nanometer zero
Valence iron removes the report of antimony in water removal.
Water hyacinth is perennial floatability herbaceous plant, and resistance to fertilizer, disease resistance are very strong, is to grow, breed in the world
One of most fast water plant.It seizes the water surface, squeezes eciophyte, blocks water transportation, influences fishes and shrimps growth, dislikes after corruption
Change water quality, breeds mosquitos and flies, endanger human health, have stronger negative effect to environment.Therefore, the improvement of water hyacinth is one
Difficult task.But if water hyacinth can be turned waste into wealth, resource utilization is realized, then caused by not only can solve it
Environmental problem, and its huge biomass resource contained can be excavated.If water hyacinth can be efficiently used (especially
Its spherical stem, i.e. its " cucurbit " part) a large amount of high-quality porous fibres for containing, manufacture generates the biological carbon of function admirable, then may be used
To realize that the resource utilization of water hyacinth provides new approach on a large scale.The resource utilization of water hyacinth simultaneously prepares processing containing a huge sum of money
The high-efficiency environment friendly new material for belonging to antimony waste water is significant.Also, due to the biological carbon surface acid rich in of water hyacinth preparation
Property oxygen-containing functional group and higher cation exchange capacity, just it shows huge answer in terms of heavy metal pollution of water body improvement
Use potentiality.
Summary of the invention
In place of the above shortcoming and defect of the existing technology, the primary purpose of the present invention is that providing a kind of water calabash
The preparation method of reed charcoal load nano zero-valence iron composite material.
Another object of the present invention is to provide a kind of water hyacinth charcoal loads being prepared by the above method to receive
Rice zero-valent iron composite material.
A further object of the present invention is to provide above-mentioned water hyacinth charcoal load nano zero-valence iron composite materials to contain antimony
Application in wastewater treatment.
The object of the invention is achieved through the following technical solutions:
A kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material, including following preparation step:
(1) fresh water hyacinth is shredded after clean dry, the charing process 1 at a temperature of inert atmosphere and 300~600 DEG C
~4h takes out after cooling, is ground up, sieved, is subsequently placed in immersion treatment in acid solution, dry after being washed to neutrality, obtain water hyacinth
Charcoal；
(2) iron containing compounds are dissolved in deionized water, dehydrated alcohol is then added as dispersing agent, to gained mixed solution
The middle water hyacinth charcoal that step (1) is added, is uniformly mixed, and reducing agent solution is then added dropwise and is stirred to react, is added dropwise
Ageing reaction afterwards, separation removal supernatant liquid, gained precipitate washed drying, obtain water hyacinth charcoal load nano zero valence iron
Composite material.
Preferably, chopping degree described in step (1) is 0.3~0.6cm.
Preferably, sieving described in step (1) referred to that 2mm was sieved.
Preferably, acid solution described in step (1) refers to concentration for the hydrochloric acid solution of 0.5~2mol/L, at the immersion
The time of reason is 6~12h.
Preferably, iron containing compounds described in step (2) be iron chloride, frerrous chloride, ferric sulfate, in ferrous sulfate extremely
Few one kind.
Preferably, reducing agent described in step (2) is potassium borohydride；The molar ratio of the reducing agent and iron containing compounds is
(2~6): 1.
Preferably, step (2) carries out under a nitrogen atmosphere.
Preferably, after the reaction was completed, it is heavy to be helped using magnetic condition for ageing in step (2).
Preferably, washing described in step (2) refers to is washed 3~5 times with dehydrated alcohol.
A kind of water hyacinth charcoal load nano zero-valence iron composite material, is prepared by the above method.
Application of the above-mentioned water hyacinth charcoal load nano zero-valence iron composite material in stibium-containing wastewater processing.
Preparation method of the invention and obtained product have the following advantages that and the utility model has the advantages that
Preparation method of the invention is simple and easy to operate, and raw material is easy to get, the water hyacinth charcoal load Nanoscale Iron being prepared
It is uniformly dispersed, efficiently solves the problems such as water hyacinth pollutes passivation easy to reunite with nano particle, improve material to heavy metal-polluted
Contaminate the removal effect of object antimony.
Detailed description of the invention
Fig. 1 is absorption property figure of the composite material to Sb (III) of different Nanoscale Iron load capacity synthesis in embodiment 2.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment 1
(1) charcoal raw material are taken from Hezhou City He Jiang water body, are cleaned up surface impurity with deionized water；Water calabash
Reed shreds the spherical stem of water hyacinth after the sun is exposed to the sun drying, and chopping degree is 0.3~0.6cm.Being packed into atmosphere furnace, (open-type is true
Empty tube furnace), before heating, first leads to nitrogen and catch up with the air in tube furnace to the greatest extent；Then it is arranged in the case where being continually fed into inert conditions and forges
Program is burnt, 300 DEG C of high temperature pyrolysis take out after cooling at charcoal, time 1h, ground 2mm sieve；Charcoal obtained is denoted as
BCW。
(2) the charcoal BCW of step (1) is immersed in the hydrochloric acid solution containing 1mol/L and impregnates 6h, and use deionized water
It is dried after rinsing product to neutrality.
(3) quantitative FeSO is weighed4·7H2O is dissolved in deionized water, quantitative dehydrated alcohol is added after to be dissolved as dispersing agent,
Quantitative charcoal BCW is added into mixed solution.Make biology using mechanical agitator (revolving speed 500r/min) stirring a period of time
Charcoal and FeSO4·7H2O is sufficiently mixed.A straight-through nitrogen keeps oxygen-free environment in solution, by a certain concentration KBH4Solution is with per second 1
The speed of~2 drops is at the uniform velocity added to above-mentioned solution dropwise, while continuing agitating solution using mechanical agitator.Ageing reaction 1h.Instead
Flask is placed on magnet after answering and helps heavy, separation removal supernatant liquid, by the precipitating dehydrated alcohol of bottom of bottle using it
Washing for several times (3~5 times), is sealed spare after being dried using vacuum freezing drying oven.
Embodiment 2
The present embodiment handles waste water containing stibium heavy metal using different proportion water hyacinth charcoal load Nanoscale Iron:
(1) the present embodiment uses laboratory test, and various concentration is artificially configured using deionized water contains antimony (III) waste water, control
Making different antimony initial concentrations is 2mg/L, 4mg/L, 6mg/L, 8mg/L, 10mg/L, 14mg/L, 18mg/L, 20mg/L；
(2) value for adjusting solution is pH=2.0, adsorbent (respectively now mass ratio BCW:Fe=2:1, BCW:Fe=processed
4:1, BCW:Fe=6:1 nanocomposite, prepare as described in Example 1) throwing amount be 0.05g, after sealing, be put in vibration
It swings in case and adsorbs, while doing blank control.2h, revolving speed 150r/min are vibrated in 25 DEG C of constant temperature.
The water hyacinth charcoal load nano zero-valence iron composite material of different Nanoscale Iron load capacity is applied to by the present embodiment
The absorption of Sb (III) in water body, it is intended to study and evaluate absorption of the composite material of different Nanoscale Iron load capacity synthesis to Sb (III)
The influence of performance.The composite material absorption result of different Nanoscale Iron load capacity synthesis is as shown in Figure 1 at 25 DEG C.It can from figure
Out, with the increase of Sb (III) initial concentration solution, absorption of the composite material of different Nanoscale Iron load capacity synthesis to Sb (III)
Performance is all gradually increased.And the increase of the load capacity with Nanoscale Iron, water hyacinth charcoal load nano zero valence iron to Sb (III)
Absorption property appearance significantly promoted.
Embodiment 3
The present embodiment tests removal of the water hyacinth charcoal loaded nano-iron material to various concentration waste water containing stibium heavy metal
Effect:
(1) the present embodiment uses laboratory test, and various concentration is artificially configured using deionized water contains antimony (III) waste water, control
Making different antimony (III) initial concentrations is 2mg/L, 4mg/L, 6mg/L, 8mg/L, 10mg/L, 14mg/L, 18mg/L, 20mg/L.
(2) adjusting above-mentioned different initial concentration antimony-containing solution pH value is 7.0, puts into 0.04g adsorbent material (BCW:Fe respectively
=2:1), 2h, revolving speed 150r/min are vibrated in 25 DEG C of constant temperature oscillation casees.Absorption result is as shown in table 1 below:
1 water hyacinth charcoal of table loads the relationship of nano zero valence iron absorption Sb (III) and initial concentration solution
| Sb initial concentration mg/L | 2 | 4 | 6 | 8 | 10 | 14 | 18 | 20 |
| Sb concentration mg/L after absorption | 0.35 | 0.40 | 0.72 | 1.04 | 1.21 | 2.24 | 2.71 | 3.65 |
| Sb adsorption capacity (mg/g) | 0.83 | 1.80 | 2.64 | 3.48 | 4.39 | 5.88 | 7.64 | 8.18 |
Water hyacinth charcoal load nano zero-valence iron composite material is applied to the absorption of Sb (III) in water body by the present embodiment,
It is intended to study and evaluate absorption property of the composite material to Sb (III) of synthesis.As can be seen from the table, with Sb (III) solution
The increase of initial concentration, water hyacinth charcoal load nano zero-valence are all gradually increased the absorption property of Sb (III).Sb (III)
Initial concentration solution is 20mg/L, and the adsorption capacity that water hyacinth charcoal loads nano zero-valence iron composite material is 8.18mg/g.
Embodiment 4
The present embodiment tests different adsorption time water hyacinth charcoal loaded nano-iron materials to the waste water containing stibium heavy metal
Removal effect:
(1) the present embodiment uses laboratory test, and various concentration is artificially configured using deionized water contains antimony (III) waste water, takes
12 parts of initial concentrations are 20mg/L Sb (III) solution, and every part of volume is 20mL, are placed in the polyethylene bottle of 50mL.
(2) value for adjusting solution is pH=7.0.12 parts of BCW:Fe=2:1 material that the said effect prepared is good are taken, often
Part is 0.04g, is added in 12 identical Sb solution, the oscillating reactions in constant temperature oscillation case, every at a temperature of being placed in 25 DEG C
Certain 0min, 10min, 30min, 1h, 3h, 5h, 7h, 12h, 18h, the time takes out in each bottle of plastic bottle sample detection for 24 hours
Antimony solubility.As a result as shown in table 2 below.
2 water hyacinth charcoal of table loads the relationship of nano zero valence iron absorption Sb (III) at any time
The present embodiment probes into the differential responses time to Sb (III) in water hyacinth charcoal load nano zero-valence iron composite material
The rate of adsorption influence.Result in table is as it can be seen that water hyacinth charcoal loads nano zero-valence iron sample to the absorption appearance of Sb (III)
Amount is gradually increased with the passage in reaction time, is reacted the initial stage, and water hyacinth charcoal loads zero-valent iron material to Sb
(III) quickly, with the extension of reaction time, the rate of adsorption gradually slows down the rate of adsorption, and finally tend to balance state.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material, it is characterised in that including preparing as follows
Step:
(1) fresh water hyacinth is shredded after clean dry, at a temperature of inert atmosphere and 300~600 DEG C charing process 1~
4h takes out after cooling, is ground up, sieved, is subsequently placed in immersion treatment in acid solution, dry after being washed to neutrality, and it is raw to obtain water hyacinth
Object charcoal；
(2) iron containing compounds are dissolved in deionized water, dehydrated alcohol is then added as dispersing agent, adds into gained mixed solution
The water hyacinth charcoal for entering step (1), is uniformly mixed, and reducing agent solution is then added dropwise and is stirred to react, is added dropwise rear old
Change reaction, separation removal supernatant liquid, gained precipitates washed drying, and it is compound to obtain water hyacinth charcoal load nano zero valence iron
Material.
2. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: chopping degree described in step (1) is 0.3~0.6cm.
3. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: sieving described in step (1) referred to that 2mm was sieved.
4. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: acid solution described in step (1) refer to concentration be 0.5~2mol/L hydrochloric acid solution, the immersion treatment when
Between be 6~12h.
5. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: iron containing compounds described in step (2) are iron chloride, frerrous chloride, ferric sulfate, at least one in ferrous sulfate
Kind.
6. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: reducing agent described in step (2) is potassium borohydride；The molar ratio of the reducing agent and iron containing compounds be (2~
6):1。
7. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: step (2) carries out under a nitrogen atmosphere.
8. a kind of preparation method of water hyacinth charcoal load nano zero-valence iron composite material according to claim 1,
Be characterized in that: after the reaction was completed, it is heavy to be helped using magnetic condition for ageing in step (2)；The washing, which refers to, washs 3 with dehydrated alcohol
~5 times.
9. a kind of water hyacinth charcoal loads nano zero-valence iron composite material, it is characterised in that: any by claim 1~8
Method described in is prepared.
10. a kind of water hyacinth charcoal load nano zero-valence iron composite material as claimed in claim 9 is in stibium-containing wastewater processing
Application.
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|---|---|---|---|---|
| CN110787771A (en) * | 2019-10-25 | 2020-02-14 | 天津大学 | Modified blue algae biochar and preparation method and application thereof |
| CN111054312A (en) * | 2020-01-15 | 2020-04-24 | 中新曜昂环境修复(江苏)有限公司 | Preparation method of duckweed charcoal loaded nano zero-valent iron and method for repairing Pb pollutant soil |
| CN111203177A (en) * | 2020-01-10 | 2020-05-29 | 淮阴师范学院 | Efficient treatment method of EDTA-Pb wastewater |
| CN111439823A (en) * | 2020-04-24 | 2020-07-24 | 衡阳师范学院 | Modified coconut coir-loaded nano zero-valent iron composite material, and preparation method and application thereof |
| CN111687201A (en) * | 2020-06-24 | 2020-09-22 | 生态环境部华南环境科学研究所 | Remediation method for heavy metal contaminated soil |
| CN113857231A (en) * | 2021-08-18 | 2021-12-31 | 广东工业大学 | Preparation of iron-based biochar wave-absorbing material and method for repairing mercury-contaminated soil through microwave synergy |
| CN113860512A (en) * | 2021-09-14 | 2021-12-31 | 镇江同源胜环境科技有限公司 | Indigenous algicidal bacteria activating agent and method for preventing cyanobacterial bloom by using same |
| CN114797764A (en) * | 2021-01-27 | 2022-07-29 | 中国环境科学研究院 | Iron-rich biochar and preparation method thereof |
| CN114797777A (en) * | 2022-04-28 | 2022-07-29 | 南京大学 | Preparation method of sludge-based biochar loaded nano-iron based on extracellular polymer regulation |
| CN115106519A (en) * | 2022-06-09 | 2022-09-27 | 南开大学 | Superparamagnetic nano-iron material, composite material thereof, preparation method and application |
| CN115193426A (en) * | 2022-07-22 | 2022-10-18 | 中国环境科学研究院 | Modified nano zero-valent iron and preparation method and application thereof |
| CN115304163A (en) * | 2021-10-13 | 2022-11-08 | 青岛大学 | Preparation method of biochar loaded nano-iron modified composite material for constructed wetland filler |
| CN115611437A (en) * | 2022-10-28 | 2023-01-17 | 上海城市水资源开发利用国家工程中心有限公司 | Bioremediation material for underground water metal antimony pollution and preparation method thereof |
| CN115611487A (en) * | 2022-09-26 | 2023-01-17 | 长江生态环保集团有限公司 | Method for repairing heavy metal in sludge by using nano material and plant |
| CN117417525A (en) * | 2023-10-23 | 2024-01-19 | 西安工程大学 | Poly-N-phenylglycine@biochar composite material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179208A (en) * | 2016-07-15 | 2016-12-07 | 华南理工大学 | A kind of Nanoscale Iron loads the preparation method and application of amino modified biological carbon |
| CN108911005A (en) * | 2018-06-14 | 2018-11-30 | 中国科学院南京土壤研究所 | A kind of nano zero valence iron-charcoal composite material and preparation method and application |
| CN109675564A (en) * | 2019-01-17 | 2019-04-26 | 三峡大学 | The preparation method and applications of water hyacinth iron charcoal |
-
2019
- 2019-04-30 CN CN201910360067.9A patent/CN110015742A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106179208A (en) * | 2016-07-15 | 2016-12-07 | 华南理工大学 | A kind of Nanoscale Iron loads the preparation method and application of amino modified biological carbon |
| CN108911005A (en) * | 2018-06-14 | 2018-11-30 | 中国科学院南京土壤研究所 | A kind of nano zero valence iron-charcoal composite material and preparation method and application |
| CN109675564A (en) * | 2019-01-17 | 2019-04-26 | 三峡大学 | The preparation method and applications of water hyacinth iron charcoal |
Non-Patent Citations (1)
| Title |
|---|
| LONG CHEN ETAL.: ""High cadmium adsorption on nanoscale zero-valent iron coated Eichhornia crassipes biochar"", 《ENVIRONMENTAL CHEMISTRY LETTERS》 * |
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| CN111203177A (en) * | 2020-01-10 | 2020-05-29 | 淮阴师范学院 | Efficient treatment method of EDTA-Pb wastewater |
| CN111054312A (en) * | 2020-01-15 | 2020-04-24 | 中新曜昂环境修复(江苏)有限公司 | Preparation method of duckweed charcoal loaded nano zero-valent iron and method for repairing Pb pollutant soil |
| CN111439823A (en) * | 2020-04-24 | 2020-07-24 | 衡阳师范学院 | Modified coconut coir-loaded nano zero-valent iron composite material, and preparation method and application thereof |
| CN111687201A (en) * | 2020-06-24 | 2020-09-22 | 生态环境部华南环境科学研究所 | Remediation method for heavy metal contaminated soil |
| CN114797764A (en) * | 2021-01-27 | 2022-07-29 | 中国环境科学研究院 | Iron-rich biochar and preparation method thereof |
| CN114797764B (en) * | 2021-01-27 | 2024-04-12 | 中国环境科学研究院 | Iron-rich biochar and preparation method thereof |
| CN113857231A (en) * | 2021-08-18 | 2021-12-31 | 广东工业大学 | Preparation of iron-based biochar wave-absorbing material and method for repairing mercury-contaminated soil through microwave synergy |
| CN113860512A (en) * | 2021-09-14 | 2021-12-31 | 镇江同源胜环境科技有限公司 | Indigenous algicidal bacteria activating agent and method for preventing cyanobacterial bloom by using same |
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| CN114797777A (en) * | 2022-04-28 | 2022-07-29 | 南京大学 | Preparation method of sludge-based biochar loaded nano-iron based on extracellular polymer regulation |
| CN115106519A (en) * | 2022-06-09 | 2022-09-27 | 南开大学 | Superparamagnetic nano-iron material, composite material thereof, preparation method and application |
| CN115193426A (en) * | 2022-07-22 | 2022-10-18 | 中国环境科学研究院 | Modified nano zero-valent iron and preparation method and application thereof |
| CN115193426B (en) * | 2022-07-22 | 2023-05-30 | 中国环境科学研究院 | Modified nano zero-valent iron and preparation method and application thereof |
| CN115611487A (en) * | 2022-09-26 | 2023-01-17 | 长江生态环保集团有限公司 | Method for repairing heavy metal in sludge by using nano material and plant |
| CN115611437A (en) * | 2022-10-28 | 2023-01-17 | 上海城市水资源开发利用国家工程中心有限公司 | Bioremediation material for underground water metal antimony pollution and preparation method thereof |
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Application publication date: 20190716 |