CN100556848C - A kind of preparation method of aeration bio-filter granulated filler - Google Patents
A kind of preparation method of aeration bio-filter granulated filler Download PDFInfo
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- CN100556848C CN100556848C CNB2007101156498A CN200710115649A CN100556848C CN 100556848 C CN100556848 C CN 100556848C CN B2007101156498 A CNB2007101156498 A CN B2007101156498A CN 200710115649 A CN200710115649 A CN 200710115649A CN 100556848 C CN100556848 C CN 100556848C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Biological Treatment Of Waste Water (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of preparation method of aeration bio-filter granulated filler, is that main raw material is equipped with cement and 801 glue prepare granular filler with the blast furnace granulated slag.The product of the inventive method preparation has the advantages that specific surface area is big, porosity is high, extremely is fit to absorption and the existence of microorganism.The present invention explores a new way for the blast furnace granulated slag resource utilization, and the operational path of a cheapness also is provided for filler production simultaneously, has reached the purpose of the treatment of wastes with processes of wastes against one another, has obtained good social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of production method of granular filler, relate in particular to a kind of utilize the industrial waste blast furnace granulated slag for main raw material prepares novel aeration bio-filter granulated filler method.
Background technology
Technology involved in the present invention mainly comprises technology such as blast furnace granulated slag application, ceramics filling preparation.Prior art is described below:
1. blast furnace granulated slag
Blast furnace granulated slag is to produce in the iron manufacturing process, and when flowing out above it floats over the molten iron layer and with high temperature fused state, a kind of granulation waste residue that the shrend chilling forms is commonly called as " grain slag ".The application of present stage to blast furnace granulated slag mainly concentrates on the following aspects:
(1) produces building materials
1) produces cement
Blast furnace granulated slag is through the shrend chilling, have little time to form crystallizable mineral and wherein chemical energy is stored in the vitreum of formation, has higher lateral reactivity, after levigate, under the hydrated product of cement clinker mineral, lime, gypsum equal excitation agent effect, it and water effect can generate hydrated products such as hydrated silicate.
2) the grain slag micro mist is used for concrete
Slag micropowder is with the levigate powder body material to certain fineness of blast furnace granulated slag, is used for the mixing material and the concrete adulterant of cement.The blast furnace granulated slag micro mist can not only replace the cement of equivalent as concrete adulterant, has good economic benefit, and can significantly improve concrete technical feature, is one of main ingredient of internationally recognized production high performance concrete.
Because slag micropowder has good technical benefit and economic benefit as concrete adulterant, in recent years, some metropolitan construction works of China are used the slag micropowder concrete and are progressively launched, and development prospect is good.
(2) produce siliceous fertilizer
Siliceous fertilizer is a kind of with silicon oxide-containing (SiO
2) and calcium oxide (CaO) be main mineral substance fertilizer, it is one of indispensable nutritive element of crop growth such as paddy rice.Siliceous fertilizer is existing is confirmed as the fourth-largest first fertilizer after nitrogen (N), phosphorus (P), potassium (K) by international soil educational circles.The main raw material(s) of producing siliceous fertilizer is a blast furnace granulated slag.
The course of processing of siliceous fertilizer is: levigate grain slag, fineness is 80 orders～100 orders, inserts proper amount of silicon element activator, mixes back pack (or packing after mixing granulation), and the suitability for industrialized production of siliceous fertilizer is fairly simple.
(3) produce devitrified glass
Devitrified glass is a kind of new inorganic material of having many uses that grows up nearly decades.Blast furnace granulated slag devitrified glass product, harder than high carbon steel, lighter than aluminium, its mechanical property ratio simple glass is good, wear resistance is not second to cast stone, Heat stability is good, and electrical insulation capability and radioceramic are approaching, cinder microcrystalline glass is used for the wearing layer of the preservative coat of various tankages of industrial sectors such as metallurgy, chemical industry, coal, machinery and metallic surface and makes tubing etc., and result of use is fine.
2. ceramics filling
Ceramics filling is that to adopt tonerde be raw material, the water treatment filler that processes through series of process such as granule, high-temperature firing, screenings.The raw material of common ceramics filling mainly is clay, shale etc., need excavate, and need carry out sintering usually when making, and need expend a lot of coal resources, and this certainly will cause the increase of its cost of manufacture under the situation of current energy scarcity.
The blast furnace granulated slag granular filler mainly is the difference of raw material with the difference of the production process of common ceramics filling.The raw material of ordinary ceramsite filler mainly is clay, shale etc., and the main raw material blast furnace granulated slag of blast furnace granulated slag granular filler is an industrial waste, with respect to clay and shale, the raw materials cost of blast furnace granulated slag is lower, therefore, the blast furnace granulated slag granular filler has great advantage aspect the cost with respect to the ordinary ceramsite filler.
Particularly using binding agent that blast furnace granulated slag is carried out agglutinating about the making of blast furnace granulated slag granular filler uses and studies, by retrieval, yet there are no relevant report.
Summary of the invention
At the deficiencies in the prior art, the object of the present invention is to provide a kind of utilize the industrial waste blast furnace granulated slag for main raw material prepares novel aeration bio-filter granulated filler method.
The preparation method of aeration bio-filter granulated filler of the present invention, step is as follows:
(1) raw material is chosen and handled: get blast furnace granulated slag, water washes, and removes bulk foreign material wherein, and is air-dry then, carries out fragmentation with ball mill afterwards, crosses 20 purpose standard sieves, and the blast furnace granulated slag after the screening is standby;
(2) batching: take by weighing the blast furnace granulated slag that step (1) makes, add its mass percent and be 4%～20% cement and its mass percent and be 4%～20% 801 glue, fully mix;
(3) balling-up: the mixture that step (2) is produced is made the spheroidal particle that diameter is 3～6mm;
(4) maintenance: the spheroidal particle that step (3) is produced spreads water 6～12 times every day, and maintenance 3～6 days promptly gets the aeration bio-filter granulated filler finished product---the blast furnace granulated slag granular filler.
Among the preparation method of above-mentioned aeration bio-filter granulated filler: the described foreign material of step (1) are mainly to refer to the scrap iron piece.
Among the preparation method of above-mentioned aeration bio-filter granulated filler: preferred 5%～15%, the 801 colloid amount per-cents preferred 5%～12% of the described cement quality per-cent of step (2).
Wherein: the described cement quality per-cent of step (2) most preferably is 10%, 801 colloid amount per-cent and most preferably is 6%.
Among the preparation method of above-mentioned aeration bio-filter granulated filler: preferred 3～5 days of the described curing time of step (4), spread the waterside number every day preferred 6～10 times.
Wherein: the described curing time of step (4) most preferably is 3 days, and spreading the waterside number every day most preferably is 6 times.
Among the preparation method of above-mentioned aeration bio-filter granulated filler: the described blast furnace granulated slag granular filler of step (4) with survey its density, water washes away rate of loss as evaluation index, adopts 100/ (density * water washes away rate of loss (under the 0.2MPa pressure)) to investigate filling property as overall target.
Among the preparation method of above-mentioned aeration bio-filter granulated filler: the preparation of granular filler is in amplifying production, and blast furnace granulated slag, cement, 801 glue consumptions are abideed by former proportionlity amount and amplified execution.
Aeration bio-filter granulated filler preparation method of the present invention have process innovation, method easy, with low cost, be beneficial to outstanding advantages such as ring protection, the product of producing is the spheroidal particle of diameter 3～6mm, the average packing specific area of particle is 4.0～5.0m
2/ g, mean compressive strength are 5.8MPa.The product specific surface area is big, porosity is high, is a kind of good bio-filter stuffing, economic benefit, social benefit, obvious environment benefit.
The advantage that the present invention is compared with prior art possessed is:
(1) utilizes industrial waste to be raw material, can reduce the production cost and the cost for wastewater treatment of aeration bio-filter granulated filler greatly, help applying of this new packing;
(2) come brewery wastewater treatment with the product of the inventive method preparation as the filler of BAF, test-results shows: the COD clearance can reach 80%, NH
4 +-N clearance can reach 90%, illustrates that this product has higher using value;
(3) industrial solid wastes are fully utilized, when reducing the aeration bio-filter granulated filler production cost, can improve its environmental value again, reach the purpose of the treatment of wastes with processes of wastes against one another, realize the resource utilization of solid material object, for a new way is explored in the recycling of industrial waste blast furnace granulated slag;
(4) do not need sintering in the building-up process, only use the binding agent bonding, realized saving energy and reduce the cost, simple to operate, reduced investment, instant effect has tangible practical value.
Description of drawings
Fig. 1 is a synthesis process flow diagram of the present invention.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Embodiment 1
As shown in Figure 1, utilizing the industrial waste blast furnace granulated slag to prepare aeration bio-filter granulated filler may further comprise the steps:
(1) raw material is chosen and handled: get blast furnace granulated slag, water washes, and removes bulk foreign material (mainly being the scrap iron piece) wherein, and is air-dry then, adopts ball mill to carry out fragmentation afterwards, crosses 20 purpose standard sieves, and the blast furnace granulated slag that the screening back obtains is standby.
(2) batching: take by weighing step (1) and make blast furnace granulated slag 700g, add its mass percent and be 8% cement and its mass percent and be 4% 801 glue, thorough mixing stirs.
(3) balling-up: the mixture that step (2) is produced is processed into the spheroidal particle that diameter is 3～6mm.
(4) maintenance: the spheroidal particle that step (3) is produced spreads water 6 times every day, and maintenance promptly got blast furnace granulated slag granular filler finished product after 3 days, and recording its density is 2.55g/m
3, it is 1.6% that water washes away rate of loss.
Embodiment 2
As shown in Figure 1, utilizing the industrial waste blast furnace granulated slag to prepare aeration bio-filter granulated filler may further comprise the steps:
(1) raw material is chosen and handled: get blast furnace granulated slag, water washes, and removes bulk foreign material (mainly being the scrap iron piece) wherein, and is air-dry then, adopts ball mill to carry out fragmentation afterwards, crosses 20 purpose standard sieves, and the blast furnace granulated slag that the screening back obtains is standby.
(2) batching: take by weighing step (1) and make blast furnace granulated slag 700g, add its mass percent and be 12% cement and its mass percent and be 8% 801 glue, thorough mixing stirs.
(3) balling-up: the mixture that step (2) is produced is processed into the spheroidal particle that diameter is 3～6mm.
(4) maintenance: the spheroidal particle that step (3) is produced spreads water 7 times every day, and maintenance promptly gets blast furnace granulated slag granular filler finished product after 3 days, and recording its density is 2.83g/m
3, it is 1.1% that water washes away rate of loss.
Embodiment 3
As shown in Figure 1, utilizing the industrial waste blast furnace granulated slag to prepare aeration bio-filter granulated filler may further comprise the steps:
(1) raw material is chosen and handled: get blast furnace granulated slag, water washes, and removes bulk foreign material (mainly being the scrap iron piece) wherein, and is air-dry then, adopts ball mill to carry out fragmentation afterwards, crosses 20 purpose standard sieves, and the blast furnace granulated slag that the screening back obtains is standby.
(2) batching: take by weighing step (1) and make blast furnace granulated slag 700g, add mass percent and be 10% cement and its mass percent and be 6% 801 glue, thorough mixing stirs.
(3) balling-up: the mixture that step (2) is produced is processed into the spheroidal particle that diameter is 3～6mm.
(4) maintenance: the spheroidal particle that step (3) is produced spreads water 8 times every day, and maintenance promptly gets blast furnace granulated slag granular filler finished product after 4 days, and recording its density is 2.95g/m
3, it is 1.3% that water washes away rate of loss.
Claims (7)
1. the preparation method of an aeration bio-filter granulated filler, step is as follows:
(1) raw material is chosen and handled: get blast furnace granulated slag, water washes, and removes bulk foreign material wherein, and is air-dry then, carries out fragmentation with ball mill afterwards, crosses 20 purpose standard sieves, and the blast furnace granulated slag after the screening is standby;
(2) batching: take by weighing the blast furnace granulated slag that step (1) makes, add its mass percent and be 4%～20% cement and its mass percent and be 4%～20% 801 glue, fully mix;
(3) balling-up: the mixture that step (2) is produced is made the spheroidal particle that diameter is 3～6mm;
(4) maintenance: the spheroidal particle that step (3) is produced spreads water 6～12 times every day, and maintenance 3～6 days promptly gets the aeration bio-filter granulated filler finished product.
2. the preparation method of aeration bio-filter granulated filler according to claim 1, it is characterized in that: the described foreign material of step (1) are meant the scrap iron piece.
3. the preparation method of aeration bio-filter granulated filler according to claim 1, it is characterized in that: the described cement quality per-cent of step (2) is that 5%～15%, 801 colloid amount per-cents are 5%～12%.
4. as the preparation method of aeration bio-filter granulated filler as described in the claim 3, it is characterized in that: the described cement quality per-cent of step (2) is that 10%, 801 colloid amount per-cent is 6%.
5. the preparation method of aeration bio-filter granulated filler according to claim 1, it is characterized in that: the described curing time of step (4) is 3～5 days, spreading the waterside number every day is 6～10 times.
6. as the preparation method of aeration bio-filter granulated filler as described in the claim 5, it is characterized in that: the described curing time of step (4) is 3 days, and spreading the waterside number every day is 6 times.
7. the preparation method of aeration bio-filter granulated filler according to claim 1 is characterized in that: the described aeration bio-filter granulated filler of step (4) with survey its density, water washes away rate of loss as evaluation index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101156498A CN100556848C (en) | 2007-12-19 | 2007-12-19 | A kind of preparation method of aeration bio-filter granulated filler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101156498A CN100556848C (en) | 2007-12-19 | 2007-12-19 | A kind of preparation method of aeration bio-filter granulated filler |
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| CN101200362A CN101200362A (en) | 2008-06-18 |
| CN100556848C true CN100556848C (en) | 2009-11-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101318737B (en) * | 2008-07-10 | 2010-12-01 | 济南大学 | Baking-free stephanoporate water slag filtering material and preparation method thereof |
| CN102079572B (en) * | 2010-12-16 | 2012-10-03 | 江苏高淳陶瓷股份有限公司 | Preparation and application method of biofilm honeycomb ceramic carrier with low cost |
| CN102557550B (en) * | 2012-03-14 | 2013-03-06 | 山东大学 | Biological aerated filter filler prepared by use of construction wastes, and preparation method thereof |
| CN103395907B (en) * | 2013-08-20 | 2016-01-20 | 陈双喜 | A kind of method adopting waterproof and breathable sand to filter greasy dirt |
| CN108408881A (en) * | 2018-03-19 | 2018-08-17 | 包头钢铁（集团）有限责任公司 | It is a kind of using metallurgical solid waste as the biological aerated filter of filtrate |
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Non-Patent Citations (2)
| Title |
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| 新型填料在曝气生物滤池中的应用研究进展. 赵颖等.工程建设与设计，第12期. 2004 * |
| 曝气生物滤池填料的研究进展. 王劲松等.工业用水与废水，第33卷第5期. 2002 * |
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Granted publication date: 20091104 Termination date: 20181219 |