CN107670635A - A kind of sewage disposal filler, preparation method and purposes - Google Patents
A kind of sewage disposal filler, preparation method and purposes Download PDFInfo
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- CN107670635A CN107670635A CN201711176392.7A CN201711176392A CN107670635A CN 107670635 A CN107670635 A CN 107670635A CN 201711176392 A CN201711176392 A CN 201711176392A CN 107670635 A CN107670635 A CN 107670635A
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- filler
- foaming agent
- sewage disposal
- base substrate
- sewage
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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
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
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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
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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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
-
- 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
- B01J20/14—Diatomaceous earth
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28004—Sorbent size or size distribution, e.g. particle size
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
-
- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
- B01J20/28019—Spherical, ellipsoidal or cylindrical
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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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28064—Surface area, e.g. B.E.T specific surface area being in the range 500-1000 m2/g
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (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)
- Geochemistry & Mineralogy (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention proposes a kind of filler for sewage disposal, and the preparation method of filler；In addition, the filler prepared with reference to the present invention, can carry out efficient dephosphorization processing to sewage；Simultaneously, the filler of present invention can in preparation process is cut into correspondingly sized particle, bulk or column, spherical as needed, so as to directly coordinate sewage disposal device or dephosphorization equipment to use, i.e., during directly the filler is loaded into the sewage disposal device either adsorption column of dephosphorization equipment or in corresponding absorbent container.
Description
Technical field
The present invention relates to sewage treatment area, and in particular to a kind of sewage disposal filler, preparation method and associated uses.
Background technology
Sewage disposal is one of important topic that current environment protection faces.With the continuous enhancing of mankind's activity, water body
Nitrogen and phosphorus pollution getting worse, for example, the eutrophication of water body has resulted in the serious water pollution in river, lake；Wherein, most
Main influence governing factor is phosphorus and nitrogen；Nitrogen P elements directly result in body eutrophication into water body, and phosphorus is water body richness
The reason for nutrient laden is more profound.In addition, the development of urban industry, large amount of sewage can be also discharged, and the current extensive style in rural area
Aquaculture present situation, also result in the generation of a large amount of sanitary sewages.
At present, for sewage disposal, mainly using common technologies such as biofilter, artificial swamps, they are mostly using life
The filler of thing membrane carrier.Add filler and the elements such as the nitrogen phosphorus in sewage are removed using chemical method, effect is good, does not produce sludge.So
And existing common sewage filler, the shortcomings of it is present, and constituent is complicated, bad fixation, and phosphor-removing effect is bad.
In addition, inventor has found, in actual applications, existing various fillers and corresponding sewage disposal device or remove
Phosphorus/can not be directly with the use of, it is necessary to further cut or handle, so as to cause filler to waste except nitrogen equipment；Further,
Current some dephosphorization fillers, its constituent include aluminium powder, and the aluminium powder used in preparation process easily produces secondary pollution very
To blast, and aluminium powder cost is higher, is not easy large-scale promotion.
The content of the invention
To solve the above problems, the present invention proposes a kind of filler for sewage disposal, and the preparation side of filler
Method；In addition, the filler prepared with reference to the present invention, can carry out efficient dephosphorization processing to sewage；Meanwhile filler of the invention
Can is cut into correspondingly sized particle, bulk or column, spherical as needed in preparation process, so as to directly coordinate
Sewage disposal device or dephosphorization equipment use, i.e., directly load the filler into sewage disposal device or dephosphorization equipment
In adsorption column or in corresponding absorbent container.
In the first aspect of the invention, there is provided a kind of filler, for sewage disposal process.
Specifically, the filler forms according to following weight constituent：
Flyash 50-60%, cement 10~15%, foaming agent 5%, quick lime and moisture and diatomite；
Wherein, the particle diameter of the filler is 10~50mm；The specific surface area of the filler is (50~60) × 104cm2/g；
The phosphorus adsorption capacity of the filler is 6-6.5mgP/g, compression strength 4.0-4.5Mpa；
The density of the filler is 1.0 ~ 1.2g/cm3, and bulk density is 0.6 ~ 0.75g/cm3.
Preferably, the diatomaceous components by weight percent changes with the weight change of the moisture component.
As one preferably, wherein, the diatomaceous components by weight percent is not less than 10%.
As another preferably, wherein, the diatomaceous components by weight percent is not less than 5%.
Wherein, the present invention has abandoned the common aluminium powder composition of filler in the prior art, is formed using the foaming agent of routine, drop
While low cost, secondary pollution it also avoid.
In the second aspect of the invention, there is provided a kind of preparation method of filler,
Specifically, there is provided the specific preparation method of aforementioned filler, comprise the following steps：
（1）The system of stirring after the flyash, diatomite, quick lime, cement, foaming agent and water are measured by formula rate
Into slurry, slurry is logical be steam heated to 45 DEG C after carry out die casting；
（2）The base substrate poured into carries out initial set of getting angry under the conditions of 60~70 DEG C of room temperature, and the time is 1.5~2h；
（3）Base substrate is cut, single-size is made on demand,
（4）Under the conditions of 175-180 DEG C, maintenance 6h~12h dephosphorization fillers formed above containing a large amount of uniform and tiny stomatas.
In order to reach the more preferable effect of filler for including aluminium powder composition with prior art, in step（2）Before, further wrap
Include：0.5~1.5min adds foaming agent suspension before cast；The foaming agent suspension weight percent concentration is 5%, is
The quantitative watering in foaming agent, 1~2min of stirring are made.
In addition, in order to directly by the applying filler in existing sewage disposal device or dephosphorization equipment, in step
Suddenly（2）Afterwards, also comprise the following steps：The base substrate is air-dried at normal temperatures, spherical, block or column is made.
Now, be made spherical, block or column base substrate size can according to the sewage disposal device of practical application or
The filling container size of person's dephosphorization equipment determines.
Effect is preferably prepared in order to realize, flyash, diatomite, the block stock of quick lime must make through broken, milling
With；Cement powder raw material directly uses, and the solution that weight percent concentration is 5~6% is made in foaming agent.
Found in addition, inventor studies, existing filler preparation method generally only includes once roasting or primary steam
Heating stepses, blank density/discrimination that it is obtained is not high, and adsorption effect has much room for improvement.Inventor is also right by studying repeatedly
The preparation has carried out following improvement：Stone is added after the flyash, diatomite, quick lime, cement, foaming agent are calcined
Cream is sieved, and base substrate is obtained after then being mixed with moisture, then the base substrate is carried out into after baking, and described pour is obtained after cooling
The base substrate built up.
In other aspects of the present invention, a kind of method handled using the filler sewage is additionally provided, it is described
Method includes：Sewage is pre-processed, filters out wherein obvious suspension, then sewage is flowed through to the sewage for being filled with the filler
Processing equipment.
After being handled using the filler sewage, sewage phosphorus content is less than 0.04mg/L in the water after processing.
The filler proposed using invention, can coordinate sewage disposal device to use.General sewage disposal device can include
Hollow adsorption column, described filler is directly loaded in the adsorption column, filler can be made full use of, not waste money
Source.
Compared with prior art, the present invention refer to sewage treating efficiency, improve resource utilization, reduce decontamination into
This.It is mainly shown as
（1）Avoid using aluminium powder adsorbent or aluminium powder foaming agent.Aluminium powder need not be used in filler component of the present invention, is prepared
Process need not utilize aluminium powder, and therefore, preparing cost reduces, and avoids secondary pollution；
（2）Filler proposed by the present invention, constituent is simple, can be prepared using the raw material of routine, so as to be really achieved environmental protection
The purpose of energy-conservation；
（3）In the preparation process of filler, using secondary baking and processing, it is more preferable to obtain filling adsorption performance, with waste water
Area is bigger, and phosphor-removing effect significantly improves；
（4）The filler of preparation directly can be used cooperatively with existing sewage disposal device or dephosphorization equipment, and it is easy to load, pole
It is big to reduce use cost, avoid the wasting of resources.
Embodiment
Actually realizing, can be by flyash, diatomite, cement, foaming agent according to part by weight 55:10:10:5 is mixed
Close, while add quick lime and moisture.
It is specific when preparing, as another preferably, can by flyash, diatomite, quick lime block stock must be through broken
Broken, milling uses；Cement powder raw material directly uses, and the solution that weight percent concentration is 5~6% is made in foaming agent.
As one preferably, the particle diameter of the filler is 10~50mm；The specific surface area of the filler be (50~60) ×
104cm2/g；
The phosphorus adsorption capacity of the filler is 6-6.5mgP/g, compression strength 4.0-4.5Mpa；
The density of the filler is 1.0 ~ 1.2g/cm3, bulk density is 0.6 ~ 0.75g/cm3。
Specific preparation method flow is as follows：
（1）The system of stirring after the flyash, diatomite, quick lime, cement, foaming agent and water are measured by formula rate
Into slurry, slurry is logical be steam heated to 45 DEG C after carry out die casting；
（2）The base substrate poured into carries out initial set of getting angry under the conditions of 60~70 DEG C of room temperature, and the time is 1.5~2h；
（3）Base substrate is cut, single-size is made on demand,
（4）Under the conditions of 175-180 DEG C, maintenance 6h~12h dephosphorization fillers formed above containing a large amount of uniform and tiny stomatas.
Preferably, in step（2）Before, further comprise：0.5~1.5min adds foaming agent suspension before cast；
In step（2）Afterwards, also comprise the following steps：
The base substrate is air-dried at normal temperatures, spherical, block or column is made.
Preferably, the foaming agent suspension weight percent concentration is 5%, is the quantitative watering in foaming agent, stirring 1
~2min is made.
In order to reach more preferable effect, for before obtaining the base substrate, there is provided the scheme being more highly preferred to as follows：By the powder
Coal ash, diatomite, quick lime, cement, foaming agent add gypsum screening after being calcined, obtained after then being mixed with moisture
Base substrate, then the base substrate is carried out into after baking, obtain described pouring the base substrate built up after cooling.
In a word, the present invention proposes a kind of filler for sewage disposal, and the preparation method of filler；In addition, knot
Filler prepared by the present invention is closed, efficient dephosphorization processing can be carried out to sewage；Meanwhile filler of the invention is in preparation process
Middle can is cut into correspondingly sized particle, bulk or column, spherical as needed, so as to directly coordinate sewage disposal to set
Standby or dephosphorization equipment uses, i.e., during directly the filler is loaded into the adsorption column of sewage disposal device or dephosphorization equipment or
In the corresponding absorbent container of person.
The not specifically disclosed content of the present invention, for example, foaming agent etc., belongs to techniques known.
Claims (10)
- A kind of 1. filler, for sewage disposal process, it is characterised in that：The filler forms according to following weight constituent： Flyash 50-60%, cement 10~15%, foaming agent 5%, quick lime and moisture and diatomite；Wherein, the particle diameter of the filler is 10~50mm；The specific surface area of the filler is (50~60) × 104cm2/g；The phosphorus adsorption capacity of the filler is 6-6.5mgP/g, compression strength 4.0-4.5Mpa；The density of the filler is 1.0 ~ 1.2g/cm3, bulk density is 0.6 ~ 0.75g/cm3。
- 2. filler as claimed in claim 1, wherein, the diatomaceous components by weight percent becomes with the weight of the moisture component Change and change.
- 3. filler as claimed in claim 1 or 2, wherein, the diatomaceous components by weight percent is not less than 5%.
- 4. a kind of preparation method of filler as described in claim 1 or 2 or 3, methods described comprise the following steps：Stir and be made after the flyash, diatomite, quick lime, cement, foaming agent and water are measured by formula rate Slurry, slurry is logical be steam heated to 45 DEG C after carry out die casting；The base substrate poured into carries out initial set of getting angry under the conditions of 60~70 DEG C of room temperature, and the time is 1.5~2h；Base substrate is cut, single-size is made on demand,Under the conditions of 175-180 DEG C, maintenance 6h~12h dephosphorization fillers formed above containing a large amount of uniform and tiny stomatas；It is characterized in that：In step（2）Before, further comprise：0.5~1.5min adds foaming agent suspension before cast；In step（2）Afterwards, also comprise the following steps：The base substrate is air-dried at normal temperatures, spherical, block or column is made.
- 5. preparation method according to claim 4, it is characterised in that the foaming agent suspension weight percent concentration is 5%, it is the quantitative watering in foaming agent, 1~2min of stirring is made.
- 6. preparation method according to claim 4, it is characterised in that flyash, diatomite, the block stock palpus of quick lime Used through broken, milling；Cement powder raw material directly uses, and the solution that weight percent concentration is 5~6% is made in foaming agent.
- 7. the method as described in claim 4 or 6, further comprises：By the flyash, diatomite, quick lime, cement, hair Infusion adds gypsum screening after being calcined, base substrate is obtained after then being mixed with moisture, then base substrate progress is secondary Roasting, obtain described pouring the base substrate built up after cooling.
- 8. a kind of method handled using filler as claimed in claim 1 sewage, methods described are included：Sewage is entered Row pretreatment, filters out wherein obvious suspension, then sewage is flowed through to the sewage disposal device for being filled with the filler.
- 9. a kind of sewage disposal device, including hollow adsorption column, it is characterised in that such as claim is loaded in the adsorption column Filler described in 1.
- 10. a kind of sewage disposal device as claimed in claim 9, wherein, the filler is using any one of claim 4-7 institute It is prepared by the method stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176392.7A CN107670635B (en) | 2017-11-23 | 2017-11-23 | Sewage treatment filler, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711176392.7A CN107670635B (en) | 2017-11-23 | 2017-11-23 | Sewage treatment filler, preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107670635A true CN107670635A (en) | 2018-02-09 |
| CN107670635B CN107670635B (en) | 2020-07-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711176392.7A Active CN107670635B (en) | 2017-11-23 | 2017-11-23 | Sewage treatment filler, preparation method and application |
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| Country | Link |
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| CN (1) | CN107670635B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225126A (en) * | 2018-10-29 | 2019-01-18 | 云南兆泓环境工程有限公司 | A kind of porous phosphorus removing filtrate and preparation method thereof based on diatomite and tripoli |
| CN110860278A (en) * | 2019-12-24 | 2020-03-06 | 陈志坚 | Adsorbent for underground water and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623619A (en) * | 2009-07-29 | 2010-01-13 | 东南大学 | Foaming-type industrial waste residue base compound dephosphorization material |
| CN101863646A (en) * | 2010-06-21 | 2010-10-20 | 南京工业大学 | Special filler for constructed wetland and preparation method thereof |
| CN103739058A (en) * | 2014-01-06 | 2014-04-23 | 上海交通大学 | Sewage reinforced phosphorous removal packing and preparation method thereof |
| CN104909460A (en) * | 2015-05-18 | 2015-09-16 | 上海交通大学 | Porous nitrogen and phosphorus removal filler for artificial wetland and preparation method of porous nitrogen and phosphorus removal filler |
| CN105152340A (en) * | 2015-06-23 | 2015-12-16 | 西安建筑科技大学 | Red mud phosphate-removing filling material for constructed wetland and preparation method thereof |
| CN106824049A (en) * | 2017-01-22 | 2017-06-13 | 西安建筑科技大学 | A kind of dephosphorization filler and preparation method thereof |
-
2017
- 2017-11-23 CN CN201711176392.7A patent/CN107670635B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101623619A (en) * | 2009-07-29 | 2010-01-13 | 东南大学 | Foaming-type industrial waste residue base compound dephosphorization material |
| CN101863646A (en) * | 2010-06-21 | 2010-10-20 | 南京工业大学 | Special filler for constructed wetland and preparation method thereof |
| CN103739058A (en) * | 2014-01-06 | 2014-04-23 | 上海交通大学 | Sewage reinforced phosphorous removal packing and preparation method thereof |
| CN104909460A (en) * | 2015-05-18 | 2015-09-16 | 上海交通大学 | Porous nitrogen and phosphorus removal filler for artificial wetland and preparation method of porous nitrogen and phosphorus removal filler |
| CN105152340A (en) * | 2015-06-23 | 2015-12-16 | 西安建筑科技大学 | Red mud phosphate-removing filling material for constructed wetland and preparation method thereof |
| CN106824049A (en) * | 2017-01-22 | 2017-06-13 | 西安建筑科技大学 | A kind of dephosphorization filler and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109225126A (en) * | 2018-10-29 | 2019-01-18 | 云南兆泓环境工程有限公司 | A kind of porous phosphorus removing filtrate and preparation method thereof based on diatomite and tripoli |
| CN110860278A (en) * | 2019-12-24 | 2020-03-06 | 陈志坚 | Adsorbent for underground water and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107670635B (en) | 2020-07-28 |
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