CN105749854A - Preparation method of fast and high-capacity phosphorus absorbing agent - Google Patents
Preparation method of fast and high-capacity phosphorus absorbing agent Download PDFInfo
- Publication number
- CN105749854A CN105749854A CN201610249481.9A CN201610249481A CN105749854A CN 105749854 A CN105749854 A CN 105749854A CN 201610249481 A CN201610249481 A CN 201610249481A CN 105749854 A CN105749854 A CN 105749854A
- Authority
- CN
- China
- Prior art keywords
- lanthanum
- nitrate
- phosphorus
- titanium dioxide
- powder
- 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
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Classifications
-
- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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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
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
A fast and high-capacity phosphorus absorbing agent is characterized in that cerous nitrate and lanthanum nitrate are mixed according to certain proportion (the mass percentage of the lanthanum nitrate accounts for 0-40%), the mixture of cerium dioxide and lanthanum dioxide is separated out through a chemical co-heat precipitation method, and the mixture of the cerium dioxide and the lanthanum dioxide is added into water with high phosphorus content to achieve fast and high-capacity absorption of phosphorus in the water.
Description
Technical field
The present invention is a kind of quick, making of high power capacity phosphorus adsorbent.Added to water body, it is achieved to phosphorus in water body
Absorption, the product that the present invention relates to is the removal of water systems'phosphorus be applicable to the places such as lake, reservoir, river course, sewage disposal.
Background technology
Phosphorus is as one of important element in water body, and its height of content in water body directly affects the eutrophy of water body
Change degree.Increasingly pay attention to water pollution and solution thereof along with China, in water body, the removal of phosphorus is increasingly by market
Pay attention to.
Traditional phosphorus removing method includes the biological phosphate-eliminating that chemical method, dredging method, artificial swamp method and sewage treatment plant are conventional
Method.Wherein dredge method and artificial swamp method is costly, complex management, disposal field floor space big, be unfavorable for river, city
Road and the process of lake and reservoir；Biological dephosphorization is affected greatly by variation water quality, and phosphor-removing effect is unstable.Therefore, chemical method conduct
Water body dephosphorized important method, has obtained swift and violent development in recent years.
Traditional dephosphorization chemical agent mainly includes meerschaum, attapulgite, aluminium salt, iron salt, polyacrylamide (PAM) etc..
The particulate matter that wherein aluminium salt, iron salt, polyacrylamide etc. are collected by flocculation, caught in water, reaches the effect of dephosphorization, but
It is relatively low to the dissolved phosphorus removal efficiency in major part water, and has substantial amounts of mud to produce after flocculation.Meerschaum, attapulgite
Preferable water systems'phosphorus adsorbent can also be become after modified Deng natural crystal, but adsorption capacity is low, absorption is fast owing to it exists
The problems such as rate is slow and absorption adhesion is weak, it does not become the chemical dephosphorization medicament of main flow.
Summary of the invention
The present invention is directed to the problems referred to above that chemical dephosphorization medicament exists, it is desirable to provide a kind of quick, medicine of high power capacity dephosphorization
Agent.Described chemical agent adsorption rate is fast, adsorption capacity is high, high adsorption capacity, it is adaptable at lake, reservoir, river course, sewage
The removal of phosphorus in the water bodys such as reason factory, it is possible to solve the problem that current chemical dephosphorization medicament exists.
For solid line above-mentioned purpose, the technical solution used in the present invention is as follows:
A kind of quick, high power capacity phosphorus adsorbent, it is characterised in that cerous nitrate and Lanthanum (III) nitrate are pressed certain mass ratio (Lanthanum (III) nitrate quality
Mark 0%-40%) mixing, (i.e. phosphorus adsorbs with titanium dioxide lanthanum mix powder to make ceria by chemistry co-heat precipitated method
Agent).
Described phosphorus adsorbent uses following methods to prepare:
By cerous nitrate and Lanthanum (III) nitrate 50g altogether, put in container in certain mass ratio (Lanthanum (III) nitrate quality accounting 0%-40%), add
500mL ultra-pure water.After being completely dissolved, regulation pH value is to more than 5.0.Heated solution, is finally evaporated solution, obtains faint yellow dioxy
Change cerium and titanium dioxide lanthanum mixed-powder.
Describe the present invention below in conjunction with specific embodiment.Protection scope of the present invention is not to be embodied as
Mode is limited, but is defined in the claims.
Accompanying drawing explanation
After adding 0.15g product in accompanying drawing 1 0.6mg/L solution, phosphorus concentration changes over.
Claims (4)
1. one kind quickly, the phosphorus adsorbent of high power capacity, it is characterised in that by cerous nitrate and Lanthanum (III) nitrate with certain mass ratio (nitre
Acid lanthanum quality accounting 0%-40%) uniformly after mixing, make ceria and titanium dioxide lanthanum mixture by chemistry co-heat precipitated method
Powder (i.e. phosphorus adsorbent).
Phosphorus adsorbent the most according to claim 1, it is characterised in that described ceria and titanium dioxide lanthanum powder diameter
In 1-50 nanometer range.
Phosphorus adsorbent the most according to claim 1, it is characterised in that described ceria and titanium dioxide lanthanum powder are to water
In phosphorus have height transfer adsorption property, its adsorption capacity reaches 50-60mg/g.
Phosphorus adsorbent the most according to claim 1, it is characterised in that described ceria uses with titanium dioxide lanthanum powder
Following preparation method:
By cerous nitrate and Lanthanum (III) nitrate 50g altogether, put in container in certain mass ratio (Lanthanum (III) nitrate quality accounting 0%-40%), add
500mL ultra-pure water, after being completely dissolved, regulation pH value to more than 5.0, heated solution, be finally evaporated solution, obtain faint yellow dioxy
Change cerium and titanium dioxide lanthanum mixed-powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249481.9A CN105749854A (en) | 2016-04-21 | 2016-04-21 | Preparation method of fast and high-capacity phosphorus absorbing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249481.9A CN105749854A (en) | 2016-04-21 | 2016-04-21 | Preparation method of fast and high-capacity phosphorus absorbing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105749854A true CN105749854A (en) | 2016-07-13 |
Family
ID=56325449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610249481.9A Pending CN105749854A (en) | 2016-04-21 | 2016-04-21 | Preparation method of fast and high-capacity phosphorus absorbing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105749854A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327875A (en) * | 2019-08-01 | 2019-10-15 | 广东维清环境工程有限公司 | A kind of preparation method for the new and effective Dephosphorization reagent being carried on zeolite |
-
2016
- 2016-04-21 CN CN201610249481.9A patent/CN105749854A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327875A (en) * | 2019-08-01 | 2019-10-15 | 广东维清环境工程有限公司 | A kind of preparation method for the new and effective Dephosphorization reagent being carried on zeolite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |
|
| WD01 | Invention patent application deemed withdrawn after publication |