CN108097205A - A kind of method and application that wastewater efficient dephosphorization adsorbent is prepared using bentonite - Google Patents
A kind of method and application that wastewater efficient dephosphorization adsorbent is prepared using bentonite Download PDFInfo
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- CN108097205A CN108097205A CN201711486443.6A CN201711486443A CN108097205A CN 108097205 A CN108097205 A CN 108097205A CN 201711486443 A CN201711486443 A CN 201711486443A CN 108097205 A CN108097205 A CN 108097205A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F2101/105—Phosphorus compounds
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Abstract
The invention discloses a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite, step is（1）The preparation of alkaline calcium bentonite；（2）The preparation of heat modification alkaline calcium bentonite；（3）The screening of efficient dephosphorization adsorbent.The method that the present invention prepares wastewater efficient dephosphorization adsorbent using bentonite adds in 5% calcium hydroxide using natural montmorillonite as raw material, after being tuned into pulpous state with water, mixing, dry, after 400 DEG C of heat treatment, adsorbent obtained reaches 19.5mg/g to the theoretical maximum adsorbance of phosphorus.After absorption, phosphorus concentration in sewage is reduced to 0.5mg/L or so from 100mg/L, and adsorption rate is up to more than 99%.Phosphorus Adsorption in the sewage water body such as agricultural breeding sewage and municipal sewage plant's sewage effluent is had extensive use by the water body dephosphorized adsorbent.
Description
Technical field
The invention belongs to major pollutants sorbing material technical field of modification in water body environment, and in particular to a kind of using swollen
The method that profit soil prepares wastewater efficient dephosphorization adsorbent, further relates to a kind of purposes of efficient dephosphorization adsorbent, is supported suitable for agricultural
Grow the Adsorption of phosphorus in the sewage water body such as waste water and municipal sewage plant's discharge.
Technical background
In recent years, the problem of environmental pollution as caused by livestock and poultry breeding industry increasingly causes concern.Although after preliminary treatment,
Rural culture waste water draining can meet《The discharging standards of livestock culture industry pollutant》(GB18596-2001) require, but it is difficult
Reach《Urban wastewater treatment firm pollutant emission standard》(GB18918-2002) water outlet secondary standard causes river, lake
Wait the serious eutrophication of surface water bodies.And State Council formally prints and distributes for 2015《Water prevention and cure of pollution action plan》To sewage
Processing proposes tightened up requirement, and in sensitizing ranges such as emphasis lake, emphasis reservoir, immediate offshore area watersheds, cities and towns are dirty
Level-one A class water discharge standards should be reached after water process comprehensively.Therefore, the key industrys such as rural culture industry advanced treatment of wastewater and
The processing of town domestic sewage low cost high standard is as tackling key problem research and development foresight technology.
Absorption method is the effective ways of phosphor in sewage removal.Therefore, the selection of adsorbent is to determine phosphor in sewage removal effect
The important evidence of rate.Currently used adsorbent mainly includes soil, clinker, zeolite, activated carbon etc. and some new absorption
Agent, such as bentonite, vermiculite, attapulgite clay mineral.However, due to natural clay mineral in water body degree of scatter it is high and
Ca in crystal2+、Mg2+It waits the presence of exchangeable cations and easily forms the reasons such as aggregate, phosphorus in sewage water body is gone
Except effect is poor.In order to improve the clay minerals such as bentonite to the adsorption capacity of phosphorus, it is necessary to be modified processing to it.However,
Current existing Bentonite Modification Technologies, it is inorganic modified including hydrochloric Acid Modification (CN106669644A), calcium chloride
(CN105771916A) although etc. than natural montmorillonite to the good treatment efficiency of phosphorus, secondary pollution and warp are easily caused to environment
The discharge of phosphorus is still reached to less than level-one A class water discharge standards after processing, it is impossible to meet emissions requirements.
The content of the invention
The purpose of the invention is to provide a kind of methods that wastewater efficient dephosphorization adsorbent is prepared using bentonite, adopt
Change natural montmorillonite surface texture with calcium hydroxide mixed processing, and mineralogical character is changed to improve it to dirt by heat modification
The removal efficiency of phosphorus in water.
Another object of the present invention is to be the provision of a kind of utilization bentonite preparation wastewater efficient dephosphorization adsorbent to exist
Application in sewage water body in phosphorus ligands, efficient dephosphorization adsorbent produced by the present invention grasp environment non-secondary pollution risk
Make process economy simplicity；To low middle and high concentration phosphorus, (phosphorus concentration is：Removal efficiency 10-150mg/L) is up to more than 95%, in sewage
In phosphor-removing effect it is fairly obvious.
To achieve these goals, the present invention uses following technical scheme：
A kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite, is comprised the following steps：
(1) preparation of alkaline calcium bentonite：Natural montmorillonite with the water of 1-6 times of quality is mixed, pulpous state has been made
Bentonite；Calcium hydroxide is added in into the bentonite of pulpous state, 22-26h is stirred under room temperature (20-25 DEG C, same as below), makes it
Uniformly mixing, mixture is layered in disposable plastic culture dish, 8-10h is dried under the conditions of 64-66 DEG C, obtains alkaline calcium
Base bentonite；
(2) preparation of heat modification alkaline calcium bentonite：The alkaline calcium bentonite that step 1) is obtained is fully ground, mistake
90-110 mesh standard sieves take 10 parts of sieving soil samples to roast 1.5-3.5h under the conditions of 100-1000 DEG C respectively, obtain heat modification
Alkaline calcium bentonite sample.
(3) screening of efficient dephosphorization adsorbent：The bentonite of Different Heat Treatment Conditions is weighed in centrifuge tube, adds in 50mL
Phosphorous simulation sewage under 24-26 DEG C of constant temperature, centrifuges supernatant after shaking 22-26h, measures phosphorus in supernatant
Content, calculate bentonite to the adsorbance and removal rate of phosphorus, it is swollen to filter out the highest heat modification alkaline calcium base of phosphorus adsorption capacity
Profit soil is the efficient dephosphorization adsorbent of sewage water body.
In step (1), the calcium hydroxide purity is 90%, and additive amount is the 5% of natural montmorillonite quality；
In step (3), the bentonite 1g of Different Heat Treatment Conditions is weighed in the centrifuge tube of 100mL.
In step (3), phosphorous simulation sewage KH2PO4It is formulated.
In step (3), it is 10,50,100mg/L containing phosphorus concentration to simulate in sewage.
In step (3), 4-6min is centrifuged with 5000r/min in centrifuge.
The efficient dephosphorization adsorbent that sewage water body made from the method for efficient dephosphorization adsorbent is prepared using bentonite.
A kind of application of wastewater efficient dephosphorization adsorbent prepared using bentonite in sewage water body in phosphorus ligands, step
Suddenly it is：
A, the accurate heat modification alkaline calcium bentonite sample weighed under the conditions of 1g natural montmorillonites and 400 DEG C is in 100mL
In centrifuge tube；
B, it is dirty containing the simulation that phosphorus concentration is 5,15,30,45,60,80,100,150,200,300mg/L to be separately added into 50mL
Water；
C, under constant temperature 24-26 DEG C shake 22-26h in the oscillator of 180r/min, 5000r/min centrifugations 4-
6min；
D, supernatant is taken to survey the concentration of residual phosphorus, calculates adsorbance of the heat modification alkaline calcium bentonite to phosphorus, is calculated public
Formula is as follows：
In formula, qeFor adsorbance (mg/g)；C0For initial phosphorus concentration (mg/L)；CeFor balance phosphorus concentration (mg/L)；V is to add
Enter the volume (mL) of phosphorus solution；M is the amount (g) of adsorbent.
According to statistics, the bentonitic storage capacity in China is about 23.3 hundred million tons, by above-mentioned technical solution, in mixing hydroxide
Under conditions of calcium and heating, bentonitic architectural characteristic (technological difficulties) is changed, significantly improves bentonite to sewage water body
The adsorption capacity (solving the natural montmorillonite technical barrier low to phosphor in sewage adsorbance) of middle phosphorus, is widely used in for bentonite
The efficient dephosphorization of sewage provides new method (technique effect of efficient dephosphorization).Compared with prior art, the present invention without secondary dirt
Risk and economical and convenient are contaminated, (phosphorus concentration is to low middle and high concentration phosphorus：Removal efficiency 10-150mg/L) is more than 95%.
Compared with prior art, the advantages of the present invention are：
(1) method that the present invention prepares wastewater efficient dephosphorization adsorbent using bentonite, adds a small amount of calcium hydroxide and heat
Modification greatly improves adsorption capacity of the natural montmorillonite to phosphorus, significantly reduces the content of phosphorus in sewage water body；
(2) present invention prepares efficient dephosphorization adsorbent made from the method for wastewater efficient dephosphorization adsorbent using bentonite and has
There is the characteristics of close friend easy to operate, economic, environmentally safe.
Description of the drawings
Fig. 1 compares figure for the phosphorus adsorption capacity of a kind of natural montmorillonite and heat modification alkaline calcium bentonite；
Fig. 2 is a kind of adsorption efficiency result figure of natural montmorillonite and 400 DEG C of heat modification alkaline calcium bentonites to phosphorus.
Specific embodiment
With reference to specific embodiment, the present invention is described further：
Embodiment 1：The preparation of adsorbent
A kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite, step are：
(1) preparation of alkaline calcium bentonite：Natural montmorillonite (is derived from into the limited public affairs of Henan justice Xiang new material new material
Department) it is mixed with the water of 1 or 3 or 5 or 6 times of quality, pulp is sufficiently stirred, obtains a kind of bentonite of pulpous state；To the swollen of pulpous state
The calcium hydroxide of bentonite quality 5% is added in profit soil, 22 or 23 or 24 or 25 or 26h is stirred at room temperature, it is made uniformly to mix.
Mixture is layered in disposable plastic culture dish and is dried under the conditions of 64 or 65 or 66 DEG C, obtains alkaline calcium bentonite.
(2) preparation of heat modification alkaline calcium bentonite：The alkaline calcium bentonite that step (1) obtains is fully ground,
Cross 900 or 95 or 100 or 105 or 110 mesh standard sieves.10 parts of sieving soil samples are taken respectively 100 or 200 or 300 or 400 or 500
Or 1.5 or 2 or 2.5 or 3 or 3.5h is roasted under the conditions of 600 or 700 or 800 or 900 or 1000 DEG C, obtain heat modification alkaline calcium base
Swelling earth sample, is denoted as BC100, BC200 ..., BC1000).
The heat modification alkaline calcium bentonite being prepared through this embodiment is changed by adding a small amount of calcium hydroxide and heat
Property greatly improves adsorption capacity of the natural montmorillonite to phosphorus, can significantly reduce the content of phosphorus in sewage water body.
Embodiment 2：The screening of adsorbent
It is accurate to weigh 1g natural montmorillonites (from Henan Yi Xiang new materials Co., Ltd) and above-mentioned heat modification alkaline calcium
Base bentonite sample in 100mL centrifuge tubes, add in 50mL containing phosphorus concentration for 10,50, the simulation sewage solution of 100mg/L, it is permanent
(25 ± 1 DEG C) shake for 24 hours in the oscillator of 180r/min under the conditions of temperature, and 5000r/min centrifuges 4 or 5 or 6min, takes supernatant
Survey the concentration of residual phosphorus.According to the variation of concentration after the initial concentration of phosphorus and absorption, the heat under different temperatures modified condition is calculated
Modified alkaline calcium-base bentonite is to the adsorbance of phosphorus.
It turns out that (as shown in Figure 1)：Alkaline calcium bentonite 100-400 DEG C heat modification condition (BC100,
BC200, BC300 and BC400) under to the phosphorus ligands effect of various concentration preferably (within this temperature range：To in 10mg/L sewage
The adsorbance of P is 0.57mg/g；Adsorbance to P in 50mg/L sewage is 2.59mg/g；Absorption to P in 100mg/L sewage
Measure as 5.30mg/g), and after 800 DEG C of heat modifications (BC800), the bentonite internal structure due to high temperature makes alkaline calcium base
Bentonite continuously decreases the removal effect of phosphorus.
In addition, without thermally-denatured alkaline calcium bentonite (the alkaline calcium base obtained by the step of BC25, i.e. embodiment 1 (1)
Bentonite) natural montmorillonite (B0) is better than to the phosphorus ligands effect of various concentration.
Embodiment 3：The application of adsorbent
The accurate 1g natural montmorillonites that weigh change (from Henan Yi Xiang new materials Co., Ltd) with the heat under the conditions of 400 DEG C
Property alkaline calcium bentonite sample in 100mL centrifuge tubes, add in 50mL containing phosphorus concentration be 5,15,30,45,60,80,100,
150,200,300,400,500mg/L simulation sewage solution, (25 ± 1 DEG C) are in the oscillator of 180r/min under constant temperature
For 24 hours, 5000r/min centrifuges 4 or 5 or 6min for concussion, and supernatant is taken to survey the concentration of residual phosphorus.
Natural montmorillonite (B0) and 400 DEG C of heat modification alkaline calcium bentonites are calculated using Langirm modelings
(BC400) it is respectively 0.237mg/g and 19.5mg/g to the theoretical maximum adsorbance of phosphorus, shows after 400 DEG C of heat modifications
Alkaline calcium hydroxide bentonite improves 66 times to the theoretical maximum adsorbance of phosphorus compared with natural montmorillonite.
Langirm model calculation formulas are as follows：
In formula, qeFor adsorbance (mg/g)；qmFor theoretical maximum adsorbance (mg/g)；CeFor balance phosphorus concentration (mg/L)；KL
For Langirm model constants (L/mg).
After adding 400 DEG C of heat modification alkaline calcium bentonites, in the solution for being 100mg/L in phosphorus initial concentration, absorption is flat
Phosphorus concentration after weighing apparatus reaches less than 0.5mg/L (table 1)《Urban wastewater treatment firm pollutant emission standard》Level-one A classes water discharges
Standard, tp removal rate to more than 99% (Fig. 2)；And in solution of the phosphorus initial concentration less than 50mg/L, the phosphorus after adsorption equilibrium
Concentration is less than 0.05mg/L (table 1), reaches II class water quality standard of surface water, to the removal rate of phosphorus to more than 99% (Fig. 2).
Wherein, tp removal rate=(C0-Ce)/C0× 100%
1 400 DEG C of heat modification alkaline calcium bentonites of table are to phosphorous concentrations versus before and after simulation sewage absorption
| Initial phosphorus concentration (mg/L) | Concentration (mg/L) after absorption | Adsorbance (mg/g) |
| 5 | 0.0127 | 0.362 |
| 15 | 0.0223 | 0.791 |
| 30 | 0.0353 | 1.555 |
| 45 | 0.0471 | 2.315 |
| 60 | 0.0643 | 2.915 |
| 80 | 0.0883 | 4.096 |
| 100 | 0.3332 | 5.301 |
| 150 | 1.1365 | 7.299 |
| 200 | 34.97 | 8.776 |
| 300 | 96.56 | 10.33 |
| 400 | 190.45 | 10.8 |
| 500 | 243.46 | 12.35 |
Claims (7)
- A kind of 1. method that wastewater efficient dephosphorization adsorbent is prepared using bentonite, which is characterized in that comprise the following steps：（1）The preparation of alkaline calcium bentonite：Natural montmorillonite with the water of 1-6 times of quality is mixed, the bentonite of pulpous state is made； Calcium hydroxide is added in into the bentonite of pulpous state, stirs 22-26h at room temperature, it is made uniformly to mix, mixture is layered on once In the plastic culture dish of property, 8-10h is dried under the conditions of 64-66 DEG C, obtains alkaline calcium bentonite；（2）The preparation of heat modification alkaline calcium bentonite：By step（1）Obtained alkaline calcium bentonite is fully ground, mistake 90-110 mesh standard sieves take 10 parts of sieving soil samples to roast 1.5-3.5h at 100-1000 DEG C respectively, obtain heat modification alkalescence Calcium-base bentonite sample；（3）The screening of efficient dephosphorization adsorbent：The bentonite of Different Heat Treatment Conditions is weighed in centrifuge tube, adds in phosphorous simulation Sewage under 24-26 DEG C of constant temperature, centrifuges supernatant after shaking 22-26h, measures the content of phosphorus in supernatant, Bentonite is calculated to the adsorbance and removal rate of phosphorus, the highest heat modification alkaline calcium bentonite of phosphorus adsorption capacity is filtered out, is The efficient dephosphorization adsorbent of sewage water body.
- 2. a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite according to claim 1, feature are existed In：The step（1）In calcium hydroxide purity for 90%, additive amount is the 5% of natural montmorillonite quality.
- 3. a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite according to claim 1, feature are existed In：The step（3）In weigh the bentonite 1g of Different Heat Treatment Conditions in the centrifuge tube of 100mL.
- 4. a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite according to claim 1, feature are existed In：The step（3）In phosphorous simulation sewage KH2PO4It is formulated.
- 5. a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite according to claim 1, feature are existed In：The step（3）In middle simulation sewage containing phosphorus concentration for 10,50,100mg/L.
- 6. a kind of method that wastewater efficient dephosphorization adsorbent is prepared using bentonite according to claim 1, feature are existed In：The step（3）In in centrifuge with 5000r/min centrifuge 4-6min.
- 7. a kind of application of the wastewater efficient dephosphorization adsorbent described in claim 1 in sewage water body in phosphorus ligands, step It is：A, the heat modification alkaline calcium bentonite sample under the conditions of 1g natural montmorillonites and 400 DEG C is weighed in 100 mL centrifuge tubes In；B, 50 mL are separately added into containing the simulation sewage that phosphorus concentration is 5,15,30,45,60,80,100,150,200,300mg/L；C, 22-26h, 5000r/min centrifugation 4-6 min are shaken under 24-26 DEG C of constant temperature in the oscillator of 180r/min；D, supernatant is taken to survey the concentration of residual phosphorus, calculates adsorbance of the heat modification alkaline calcium bentonite to phosphorus.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248651A (en) * | 2018-09-28 | 2019-01-22 | 芜湖市鹏磊新材料有限公司 | A kind of preparation method of the hydroxyl calcium bentonite for Removal of Phosphorus in Wastewater |
| CN109499531A (en) * | 2018-11-30 | 2019-03-22 | 昆明理工大学 | A kind of adsorbent material for sanitary sewage disposal, preparation method and applications |
| CN113072127A (en) * | 2021-04-02 | 2021-07-06 | 北京市水科学技术研究院 | Phosphorus removal matrix material and preparation method and application thereof |
| CN114433024A (en) * | 2022-04-12 | 2022-05-06 | 农业农村部环境保护科研监测所 | Modified biochar and preparation method and application thereof |
| CN114789039A (en) * | 2022-05-10 | 2022-07-26 | 苏州中材非金属矿工业设计研究院有限公司 | Mineral phosphorus removal agent and preparation method thereof |
| CN115591527A (en) * | 2021-11-22 | 2023-01-13 | 江西省水利科学院（Cn） | Phosphorus removal particle adsorbent and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765488A (en) * | 2005-09-29 | 2006-05-03 | 上海交通大学 | Method for preparing absorbent with phosphor concentration and phosphor reclaim function |
| CN1803294A (en) * | 2005-11-10 | 2006-07-19 | 广西大学 | Alkaline calcium bentonite and its preparation method |
| CN103111256A (en) * | 2013-03-06 | 2013-05-22 | 中国科学院南京地理与湖泊研究所 | Preparation method of efficient calcium-based sepiolite phosphorus adsorbent and application thereof |
| CN105771916A (en) * | 2016-04-20 | 2016-07-20 | 湖北大学 | Bentonite particles, bentonite particle adsorption column and method for removing phosphorus in natural water body |
| CN106824056A (en) * | 2017-02-10 | 2017-06-13 | 江苏省环境科学研究院 | A kind of waste water of livestock poultry phosphorus adsorbent and its application |
-
2017
- 2017-12-29 CN CN201711486443.6A patent/CN108097205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765488A (en) * | 2005-09-29 | 2006-05-03 | 上海交通大学 | Method for preparing absorbent with phosphor concentration and phosphor reclaim function |
| CN1803294A (en) * | 2005-11-10 | 2006-07-19 | 广西大学 | Alkaline calcium bentonite and its preparation method |
| CN103111256A (en) * | 2013-03-06 | 2013-05-22 | 中国科学院南京地理与湖泊研究所 | Preparation method of efficient calcium-based sepiolite phosphorus adsorbent and application thereof |
| CN105771916A (en) * | 2016-04-20 | 2016-07-20 | 湖北大学 | Bentonite particles, bentonite particle adsorption column and method for removing phosphorus in natural water body |
| CN106824056A (en) * | 2017-02-10 | 2017-06-13 | 江苏省环境科学研究院 | A kind of waste water of livestock poultry phosphorus adsorbent and its application |
Non-Patent Citations (2)
| Title |
|---|
| GIORGOS MARKOU ET AL.: "Sorption mechanism(s) of orthophosphate onto Ca(OH)2 pretreated bentonite", 《RSC ADV.》 * |
| M. KHADHRAOUI ET AL.: "The effect of the physical structure of a porous Ca-based sorbent on its phosphorus removal capacity", 《WATER RESEARCH》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248651A (en) * | 2018-09-28 | 2019-01-22 | 芜湖市鹏磊新材料有限公司 | A kind of preparation method of the hydroxyl calcium bentonite for Removal of Phosphorus in Wastewater |
| CN109499531A (en) * | 2018-11-30 | 2019-03-22 | 昆明理工大学 | A kind of adsorbent material for sanitary sewage disposal, preparation method and applications |
| CN109499531B (en) * | 2018-11-30 | 2021-12-03 | 昆明理工大学 | Adsorption material for domestic sewage treatment, preparation method and application thereof |
| CN113072127A (en) * | 2021-04-02 | 2021-07-06 | 北京市水科学技术研究院 | Phosphorus removal matrix material and preparation method and application thereof |
| CN115591527A (en) * | 2021-11-22 | 2023-01-13 | 江西省水利科学院（Cn） | Phosphorus removal particle adsorbent and preparation method and application thereof |
| CN114433024A (en) * | 2022-04-12 | 2022-05-06 | 农业农村部环境保护科研监测所 | Modified biochar and preparation method and application thereof |
| CN114789039A (en) * | 2022-05-10 | 2022-07-26 | 苏州中材非金属矿工业设计研究院有限公司 | Mineral phosphorus removal agent and preparation method thereof |
| CN114789039B (en) * | 2022-05-10 | 2024-03-15 | 苏州中材非金属矿工业设计研究院有限公司 | Mineral dephosphorizing agent and preparation method thereof |
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Application publication date: 20180601 |