CN110064359A - A kind of flyash for purifying eutrophication water body-bed mud haydite, its production method and application - Google Patents
A kind of flyash for purifying eutrophication water body-bed mud haydite, its production method and application Download PDFInfo
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- CN110064359A CN110064359A CN201910384027.8A CN201910384027A CN110064359A CN 110064359 A CN110064359 A CN 110064359A CN 201910384027 A CN201910384027 A CN 201910384027A CN 110064359 A CN110064359 A CN 110064359A
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- flyash
- water body
- bed mud
- haydite
- eutrophication water
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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
- B01J20/06—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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- 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
- B01J20/08—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 comprising aluminium oxide or hydroxide; comprising bauxite
-
- 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
-
- 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
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
-
- 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
Abstract
The present invention provides a kind of flyash for purifying eutrophication water body-bed mud haydite, its production method and application, it is using flyash and sediment of pond as primary raw material, and add iron powder and limestone powder, flyash-bed mud haydite is obtained after mixing, granulation, sintering, not only there is good nitrogen phosphorus ligands effect, with more good durability and price advantage, the recycling of flyash is realized.It cannot be only used for purifying eutrophication water body, can also have extensive use in terms of artificial swamp, Ecology.
Description
Technical field
The present invention relates to water-treatment technology field, in particular to a kind of flyash-bed mud haydite preparation method and
With.
Background technique
Currently, China faces serious water eutrophication problem, a large amount of nitrogen, phosphorus organic matter contained by eutrophic water body,
If handling not in time, algae raised growth can be made, lead to the mortality of aquatic animals and plants, cause serious water pollution,
Even jeopardize local safe drinking water.In face of the water eutrophication problem having a large capacity and a wide range, user cheap using cost of manufacture
Just improvement of the haydite as filler for eutrophic water body is a kind of more feasible scheme.
The increasingly developed of China's power industry causes the great increase of flyash discharge capacity, and flyash is as a kind of atmosphere
The primary pollution source of pollution, if it is improper conduct oneself well to comprehend cause serious environmental problem.Flyash main component is SiO2, as bone
Material is conducive to haydite and forms and have certain mechanical strength, and flyash also contains a small amount of Al2O3、MgO、Fe2O3, have in sintering procedure
Help increase haydite surface porosity factor, lime stone has combustion-supporting and foaming effect, fires convenient for lytag.
A large amount of organic matters are rich in sediment of pond, being made haydite with coal ash for manufacturing and adding can be micro- life in eutrophic water body
The growth of object provides advantage, and the nitrification of microorganism and anti-nitration reaction be eutrophication water denitrogenation main means it
One, haydite can be improved to the clean-up effect of eutrophic water body.
Haydite plays extensive purposes in terms of building materials, road, with lower cost of manufacture, simple system
Make the advantages such as means, can be used on a large scale in water body purification processing.It can preferably be provided using haydite for microorganism good
The environment of an activation well, cooperation microbial action play the role of purifying water body, there is vast prospect in terms of water process.
Summary of the invention
Goal of the invention: the purpose of the present invention is to provide a kind of flyash for purifying eutrophication water body-bed mud potteries
Grain, its production method and application are added additive and are made for purifying eutrophy using flyash and sediment of pond as primary raw material
The lytag of water body not only realizes the efficient utilization of flyash, can also obtain the fine coal with preferable purifying water body effect
Grey haydite, process facilitate environmental protection.
A kind of flyash for purifying eutrophication water body-bed mud haydite, the chemical constituent of finished product are as follows: silica
58-69%, aluminum oxide 12-20%, ferrous oxide 6-10%, di-iron trioxide 4-8%, calcium oxide 3-5%, potassium oxide 1-2%,
Grain size is 4-5mm.
A kind of production method of the flyash for purifying eutrophication water body-bed mud haydite, steps are as follows:
(1), prepare raw material: flyash 40-50%, sediment of pond 40-50%, iron powder 1-5%, limestone powder 1-5%；
(2), it is granulated: being granulated after mixed raw material, mixing dry mixing time is 5-10min, and adding mixing time after water is 5-10min;
(3), fire: firing total duration is 90min, is divided into 2 stages, and warm-up phase is burnt under the conditions of 300 DEG C by Muffle furnace
20min processed, after be warming up to 1100 DEG C of firing 1h or so.
The flyash is the wet-discharged coal ash that thermal power plant burning generates.
Filler during gained lytag can be used as artificial ecology wetland, Riparian Zone is protected.
Compared with prior art, the present invention has effect following prominent:
1, the present invention provides new thinking for flyash recycling, and sediment of pond is added, greatly reduces the dosage of flyash,
With low cost, efficient advantage；
2, aggregate one of of the wet-discharged coal ash as lytag is added in this method, and wet granulation can be used, reduce drying,
The processes such as grinding reduce cost of manufacture；
3, aggregate one of of the sediment of pond as lytag is added in this method, is rich in organic matter, is that microorganism can be more preferable
Haydite surface depend on and create condition, improve lytag to the clean-up effect of eutrophic water body；
4, present invention addition iron powder helps to improve haydite and the adsorption precipitation of phosphorus in water body, addition limestone powder will be played and be helped
The effect of flux facilitates the firing of haydite, improves its surface texture, and product is made to have higher intensity, increases using the longevity
Life.
Detailed description of the invention
Fig. 1 is the electron microscope of 1 gained haydite of embodiment.
Specific embodiment
To achieve the above object, the following technical scheme is adopted:
Embodiment of the present invention is described in detail below with reference to embodiment, it will be understood to those of skill in the art that under
Column embodiment is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Actual conditions are not specified in the present embodiment
Person carries out according to normal conditions.Production firm person, which is not specified, in all reagents or instrument all can buy acquisition by market channel.
For flyash-bed mud haydite of purifying eutrophication water body, raw material dosage is as follows, and the sum of each component is
100%:
Flyash 40-50%, such as can be, but be not limited to 40,41,42,43,44,45,46,47,48,49% or 50%；
Sediment of pond 40-50%, such as can be, but be not limited to 40,41,42,43,44,45,46,47,48,49% or 50%；
Iron powder 1-5%, such as can be, but be not limited to 1,2,3,4 or 5% etc.；
Paris white 1-5%, such as can be, but be not limited to 2,3 or 4% etc..
And by dividing dosage to adjust and optimize raw material group, it also can be further to for purifying eutrophication water body
The performance of lytag be adjusted and optimize.
Wherein, the flyash is the wet-discharged coal ash that thermal power plant burning generates；The sediment of pond is rich in having
The active bed mud of the culture pond of machine matter；Iron powder and limestone powder are bought by market channel.
Wet granulation can further wherein be used using wet-discharged coal ash, reduce the processes such as drying, grinding, reduce production
Cost；Wherein addition sediment of pond reduces the dosage of flyash as aggregate, and organic matter is rich in sediment of pond, favorably
In the growth of microorganism, the clean-up effect of haydite is improved by the effect of microorganism；Iron powder is wherein added and helps to improve haydite
Adsorption precipitation to phosphorus in water body, achievees the purpose that purifying water body；Since production lytag needs higher temperature, stone is added
Lime stone powder will play the role of fluxing agent, facilitate the firing of haydite, and promote the quality of haydite.
Due to using power plant's wet-discharged coal ash, so that the present invention is used to purify the lytag production work of eutrophic water body
Skill is relatively simple, and making step can refer to as follows:
Firstly, mix dry stirring with sediment of pond, iron powder and limestone powder than weighing and by flyash according to metering, this
Stage time-consuming is 5-10min, it is furthermore preferred that the time of the dry stirring of mixing is 5min.
Then, suitable quantity of water is added in the mixture after the dry stirring of mixing, carries out wet stirring, this stage time-consuming is 5-
10min, it is furthermore preferred that the time of wet stirring is 5min.
Then the mixture after wet stirring is granulated by pelletizer, being granulated size is that 4-5mm is more suitable for, laggard
Row is fired.
The firing total duration of the present invention for preparing lytag is 90min or so, is divided into 2 stages, the first rank
Section is the pre-heating drying stage, by Muffle furnace in 300-400 DEG C of firing 15-20min.Preheating purpose is to prevent lytag
The stage is fired in high temperature and fires generation explosion, influences its quality.It is furthermore preferred that 300 DEG C of firing 20min.
Second stage is the high-temperature roasting stage, this stage needs to be warming up to 1100-1200 DEG C of firing 1h or so.More preferably
, using 1100 DEG C, high temperature bakes 60min.
Then the lytag after roasting is subjected to stacking cooling, after by screening with detection to obtain for purifying
The lytag of eutrophic water body.Chemical component is as follows: silica 58-69%, aluminum oxide 12-20%, ferrous oxide
6-10%, di-iron trioxide 4-8%, calcium oxide 2-4%, potassium oxide 1-2%.
The chemical component of embodiment 1, the component of reference examples 1-2 and gained haydite is as shown in table 1:
Table 1
(note: in reference examples 1, although not adding iron powder, there is Fe in data2+Content (ferrous oxide, three ferrous oxides) is
From flyash, flyash includes a small amount of Iron-ore Slag, and similarly the calcium oxide of 2 data of reference examples is also to come from flyash, due to
Reference examples 2 are not plus lime stone is so the content of flyash is higher, and the content of iron is more higher than 1 data of embodiment).
Embodiment 1, the preparation process of reference examples 1 are:
Flyash is mixed to dry stirring with sediment of pond, iron powder and limestone powder, after mixing dry stirring 5min, is added appropriate
Water carries out wet stirring, and the time of wet stirring is 5min, after be granulated.Gained particle is heated into 20min at 300 DEG C, after
It is roasted at 1100 DEG C, embodiment is obtained after cooling for purifying the lytag of eutrophic water body.
Reference examples 2, in addition to gained particle is heated 20min at 400 DEG C, after carry out roasting remaining at 1200 DEG C with real
Apply example 1.
Embodiment 2
Cleaning test is carried out to nitrogen-phosphorus wastewater with three groups of lytags respectively using manual simulation's sewage, wherein configuration is used first
In the nitrogen phosphorus solution of absorption, 1.1466g ammonium chloride is weighed respectively, and 0.1318g potassium dihydrogen phosphate is dissolved in 1L water, and it is dense to prepare ammonia nitrogen
Degree is 30 μ g/ml solution and phosphate concentration is 30 μ g/ml solution.Respectively take 250ml nitrogen phosphorus solution that 3 different embodiments are added
The adsorption test of nitrogen phosphorus is carried out, each processing setting injected volume is 7 gradients (0.1g 0.2g 0.4g 0.8g 1g 2g 5g), is set
In constant temperature oscillator, 24 h of continuous oscillation under conditions of 25 DEG C of temperature, 125 r/min of revolving speed.Respectively day part (1h,
2h, 4h, 8h, 12h, for 24 hours) water sampling is centrifuged under 4000 r/min revolving speeds, taken with 0.45 μm of micropore water system membrane filtration
Clear liquid, colorimetric estimation total nitrogen and total phosphorus.
Three kinds of lytags are as described in Table 2 to artificial nitrogen-phosphorus wastewater clean-up effect:
Table 2
After equivalent microorganism is added and impregnates, ammonium chloride 1.1910g, potassium nitrate 0.0360g, potassium dihydrogen phosphate 0.087g are weighed,
Glucose 0.4717g is added to the water sample for taking 250ml to prepare in the water of 1000ml, is separately added into the flyash ceramic of 3 kinds of test cases
Grain 5g, each processing are arranged 3 repetitions, and deionized water is also respectively set as reference in each handle, every morning 8:00-10:
00 is aerated, and daily water sampling measures its NH3- N, TN, TP are measured 6 days altogether.
Three kinds of lytags are as described in Table 3 to artificial nitrogen-phosphorus wastewater clean-up effect after 6 days:
Table 3
| Test case | Ammonia nitrogen removal ratio | Total nitrogen removes ratio | Total phosphorus ligands ratio |
| Embodiment 1 | 99.2% | 90.8% | 48.6% |
| Reference examples 1 | 93.3% | 82.3% | 29.2% |
| Reference examples 2 | 90. 4% | 76.5% | 20.8% |
Lytag is mainly physical and chemical adsorption process, attachment of the nitrogen phosphorus on haydite surface, a side to the absorption of nitrogen phosphorus
Face is related with the surface shape of carrier, another main influence factor is exactly the pore structure of carrier.In haydite fine coal cloth with
The combination of FeO has metal oxide surface, and hydroxy functional group and charging property play a role and improve the absorption of water body nitrogen phosphorus
Effect.Lytag with remove Water, phosphorus ability another key factor be lytag have Si, Al,
The metal oxides such as Fe, Mg, the metal oxide that Si, Al, Fe, Mg are constituted have hydrophilic point, can be adsorbed on hydrone dissociation
H+, to generate metal oxide surface hydroxy functional group Si-OH, Al-OH, Fe-OH, Mg-OH etc..Reference examples 1 and implementation
1 maximum difference of example is that iron powder is not added, and illustrates that a certain amount of iron powder, which is added, can be such that the hole on lytag surface sends out
It reaches, allows to overcome the resistance between solid-liquid, nitrogen, phosphorus are adsorbed onto pore surface using capillarity, and pass through surface
Tension is fettered, and provides condition for the physical absorption of lytag, for 24 hours Static Adsorption nitrogen phosphorus respectively reach 13.6% with
17.7%.Since limestone powder is not added for reference examples 2, fine coal ash fusion point is higher in sintering procedure, leads to the modified effect in haydite surface
Fruit is worse than embodiment 1, reduces its clean-up effect, but still have certain suction-operated to nitrogen phosphorus water, Static Adsorption nitrogen phosphorus reaches for 24 hours
To 11.1% and 14.2%.
1 simulating natural environment of embodiment considers that biological effect is handled 6 days, and purification nitrogen phosphorus ability is strengthened, total nitrogen total phosphorus
Removal ratio respectively reaches 90.8% and 48.6%, illustrates that lytag can reinforce water body nitrogen phosphorus with microorganism collective effect
Removal effect.
Claims (4)
1. a kind of flyash for purifying eutrophication water body-bed mud haydite, which is characterized in that the chemical constituent of haydite finished product
It is as follows: silica 58-69%, aluminum oxide 12-20%, ferrous oxide 6-10%, di-iron trioxide 4-8%, calcium oxide 3-5%,
Potassium oxide 1-2%, granular size 4-5mm.
2. the production method of the flyash for purifying eutrophication water body-bed mud haydite according to claim 1, special
Sign is that steps are as follows:
(1), prepare raw material: flyash 40-50%, sediment of pond 40-50%, iron powder 1-5%, limestone powder 1-5%；
(2), it is granulated: being granulated after mixed raw material, mixing dry mixing time is 5-10min, and adding mixing time after water is 5-10min;
(3), fire: firing total duration is 90min, is divided into 2 stages, and warm-up phase is burnt under the conditions of 300 DEG C by Muffle furnace
20min processed then heats to 1100 DEG C of firing 1h or so.
3. a kind of production method of the flyash for purifying eutrophication water body-bed mud haydite according to claim 2,
It is characterized in that, the flyash is the wet-discharged coal ash that thermal power plant burning generates.
4. a kind of flyash for purifying eutrophication water body-bed mud haydite according to claim 1 is used as artificial life
Filler in state wetland, Riparian Zone protection.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112237902A (en) * | 2020-10-30 | 2021-01-19 | 长安大学 | Surface zeolite adsorbent and preparation method and application thereof |
| CN114229945A (en) * | 2021-12-20 | 2022-03-25 | 河北工业大学 | Phosphorus-containing wastewater purification functional material prepared from solid waste and application thereof |
| CN115650540A (en) * | 2022-11-04 | 2023-01-31 | 广东工业大学 | Method for resource treatment of eutrophic water sludge and application thereof |
| CN115646444A (en) * | 2022-10-27 | 2023-01-31 | 攀枝花学院 | Sewage dephosphorization material and preparation method thereof |
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| CN104528868A (en) * | 2014-12-31 | 2015-04-22 | 华南师范大学 | Application of magnetic particles in in-situ treatment of eutrophic water and sedimentary phosphate |
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| CN102249584A (en) * | 2011-05-17 | 2011-11-23 | 惠州绿润环保科技有限公司 | Lightweight ceramicite prepared from municipal sludge and printing/dyeing sludge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112237902A (en) * | 2020-10-30 | 2021-01-19 | 长安大学 | Surface zeolite adsorbent and preparation method and application thereof |
| CN114229945A (en) * | 2021-12-20 | 2022-03-25 | 河北工业大学 | Phosphorus-containing wastewater purification functional material prepared from solid waste and application thereof |
| CN114229945B (en) * | 2021-12-20 | 2024-02-02 | 河北工业大学 | Phosphorus-containing wastewater purification functional material prepared from solid waste and application thereof |
| CN115646444A (en) * | 2022-10-27 | 2023-01-31 | 攀枝花学院 | Sewage dephosphorization material and preparation method thereof |
| CN115646444B (en) * | 2022-10-27 | 2024-02-06 | 攀枝花学院 | Sewage dephosphorization material and preparation method thereof |
| CN115650540A (en) * | 2022-11-04 | 2023-01-31 | 广东工业大学 | Method for resource treatment of eutrophic water sludge and application thereof |
| CN115650540B (en) * | 2022-11-04 | 2024-01-19 | 广东工业大学 | Method for recycling sludge of eutrophic water body and application thereof |
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