CN103724047A - Biological filtering medium and preparation method thereof - Google Patents
Biological filtering medium and preparation method thereof Download PDFInfo
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- CN103724047A CN103724047A CN201310662817.0A CN201310662817A CN103724047A CN 103724047 A CN103724047 A CN 103724047A CN 201310662817 A CN201310662817 A CN 201310662817A CN 103724047 A CN103724047 A CN 103724047A
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Abstract
The invention relates to the technical field of biological materials, in particular to a biological filtering medium and a preparation method thereof. The biological filtering medium is prepared from magnetite, oyster shell powder, laterite, diatomite and coal ash, and has high filtration efficiency; moreover, the raw materials are real solid waste, so that the purpose of recovering and reusing the waste is realized, and the preparation cost of the filtering medium is low; in addition, the preparation method adopts a sintering process of low-temperature drying and slow burning, reduces the phenomena of ball explosion and surface decrepitation of crude material balls, ensures that the filtering medium is uniformly and completely sintered, improves the quality and the porosity of a filtering medium finished product, and prevents a hard shell from generating on the surface of the filtering medium so as to facilitate the growth of biological bacteria.
Description
Technical field
The present invention relates to technical field of biological materials, is a kind of biofilter material and preparation method thereof specifically.
Background technology
At present, biofilter material is mainly organic polymer filtrate and inorganic filtrate; Organic polymer filtrate has polystyrene, polyvinyl chloride, polypropylene etc., and the consistency between they and microorganism is poor, and during biofilm, biomass is few, easily comes off, and treatment effect is not so good, and expensive, and in BAF technique, application is few; Inorganic filtrate mainly contains quartz sand, volcanics, gac, hard coal, zeolite etc.; Owing to existing, density is large, specific surface area is little, porosity is low, the filter tank cycle of operation is short for quartz sand, head loss increases the shortcomings such as very fast, wash-down water consumption is large, does not now substantially use separately; Gac and volcanics price are more expensive; Hard coal, zeolite pore are relatively little, easily stop up, and back flushing resistance is larger.
At present, invented various biofilter materials, but all existed certain problem, impact is used.
Summary of the invention
The object of the invention is the problem existing for above-mentioned technology, a kind of biofilter material and preparation method thereof is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of biofilter material, by the raw material of following parts by weight, made: 13～36 parts of 2～40 parts of magnetites, 10～40 parts of oyster shell powders, 15～33 parts of laterites, 0～18 part, diatomite and coal ash.
Further: the raw material by following parts by weight is made: 18～32 parts of 12～35 parts of magnetites, 16～37 parts of oyster shell powders, 21～30 parts of laterites, 5～13 parts, diatomite and coal ash.
Further: the raw material by following parts by weight is made: 24 parts of 21 parts of magnetites, 25 parts of oyster shell powders, 19 parts of laterites, 11 parts, diatomite and coal ash.
Another object of the present invention is to provide a kind of preparation method of biofilter material, comprises the steps:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash are pulverized, then metering mixes in proportion;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) raw material ball is sent into sintering in agglomerating plant, made fly ash biological filter.
Further: in described step (1), the smashing fineness of magnetite, oyster shell powder, laterite, diatomite and coal ash is 100 orders.
Further: in described step (3), after raw material ball is sent in agglomerating plant, be first warming up to 85～105 ℃, raw material ball dried to extremely moisture mass percent and be less than 5%, be warming up to again 800～900 ℃, make raw material ball sintering under the condition of trolley running speed 0.1～0.2m/min.
Compared with prior art, useful technique effect of the present invention is:
(1) the present invention adopts magnetite, oyster shell powder, laterite, diatomite and coal ash to pulverize the biofilter material of making, and filtration efficiency is high, and above-mentioned raw materials is solid waste completely, has reached the object of waste reclaimation, makes filtrate preparation cost cheap;
(2) in addition, the present invention adopts cryodrying and the slow sintering process burning of low temperature, has reduced fried ball, the blistering phenomenon of raw material ball, guarantee filtrate uniform well-burnt, improved quality and the porosity of finished product filtrate, and filter material surface can not produce duricrust, be beneficial to biological bacterium growth.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of biofilter material, is comprised of 24 parts of 21 parts of magnetites, 25 parts of oyster shell powders, 19 parts of laterites, 11 parts, diatomite and coal ash.
Making method is as follows:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash powder being broken to fineness is 100 orders, and then above-mentioned metering in proportion mixes;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) after raw material ball is sent in agglomerating plant, be first warming up to 85 ℃, it is 2% that raw material ball is dried to extremely moisture mass percent, then is warming up to 800 ℃, makes raw material ball sintering under the condition of trolley running speed 0.1m/min.
Embodiment 2
A kind of biofilter material, is made by the raw material of following parts by weight: 23 parts of 2 parts of magnetites, 40 parts of oyster shell powders, 33 parts of laterites, 9 parts, diatomite and coal ash.
Making method is as follows:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash powder being broken to fineness is 100 orders, and then above-mentioned metering in proportion mixes;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) after raw material ball is sent in agglomerating plant, be first warming up to 100 ℃, it is 3% that raw material ball is dried to extremely moisture mass percent, then is warming up to 850 ℃, makes raw material ball sintering under the condition of trolley running speed 0.15m/min.
Embodiment 3
A kind of biofilter material, is made by the raw material of following parts by weight: 13 parts of 40 parts of magnetites, 10 parts of oyster shell powders, 15 parts of laterites, 16 parts, diatomite and coal ash.
Making method is as follows:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash powder being broken to fineness is 100 orders, and then above-mentioned metering in proportion mixes;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) after raw material ball is sent in agglomerating plant, be first warming up to 95 ℃, it is 4% that raw material ball is dried to extremely moisture mass percent, then is warming up to 900 ℃, makes raw material ball sintering under the condition of trolley running speed 0.2m/min.
Embodiment 4
A kind of biofilter material, is made by the raw material of following parts by weight: 14 parts of magnetites, 25 parts of oyster shell powders, 36 parts of 33 parts of coal ash of laterite.
Making method is as follows:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash powder being broken to fineness is 100 orders, and then above-mentioned metering in proportion mixes;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) after raw material ball is sent in agglomerating plant, be first warming up to 90 ℃, it is 1% that raw material ball is dried to extremely moisture mass percent, then is warming up to 860 ℃, makes raw material ball sintering under the condition of trolley running speed 0.15m/min.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. biofilter material, is characterized in that, by the raw material of following parts by weight, is made: 13～36 parts of 2～40 parts of magnetites, 10～40 parts of oyster shell powders, 15～33 parts of laterites, 0～18 part, diatomite and coal ash.
2. biofilter material according to claim 1, is characterized in that, by the raw material of following parts by weight, is made: 18～32 parts of 12～35 parts of magnetites, 16～37 parts of oyster shell powders, 21～30 parts of laterites, 5～13 parts, diatomite and coal ash.
3. biofilter material according to claim 2, is characterized in that, by the raw material of following parts by weight, is made: 24 parts of 21 parts of magnetites, 25 parts of oyster shell powders, 19 parts of laterites, 11 parts, diatomite and coal ash.
4. a preparation method for biofilter material, is characterized in that, comprises the steps:
(1) magnetite, oyster shell powder, laterite, diatomite and coal ash are pulverized, then metering mixes in proportion;
(2) toward after adding water in mixture and stirring, make its nucleation, balling-up, form raw material ball;
(3) raw material ball is sent into sintering in agglomerating plant, made fly ash biological filter.
5. according to the preparation method of biofilter material described in claim 4, it is characterized in that: in described step (1), the smashing fineness of magnetite, oyster shell powder, laterite, diatomite and coal ash is 100 orders.
6. the preparation method of biofilter material according to claim 4, it is characterized in that: in described step (3), after raw material ball is sent in agglomerating plant, first be warming up to 85～105 ℃, raw material ball is dried to extremely moisture mass percent and be less than 5%, be warming up to again 800～900 ℃, make raw material ball sintering under the condition of trolley running speed 0.1～0.2m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662817.0A CN103724047A (en) | 2013-12-10 | 2013-12-10 | Biological filtering medium and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310662817.0A CN103724047A (en) | 2013-12-10 | 2013-12-10 | Biological filtering medium and preparation method thereof |
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| CN103724047A true CN103724047A (en) | 2014-04-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759149A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠德美过滤技术有限公司 | High-activity composite filter material prepared by blending melt-blown polypropylene with modified kaolin and used for sewage treatment and preparation method thereof |
| CN105921005A (en) * | 2016-05-25 | 2016-09-07 | 陕西绿恒农业生物科技有限公司 | Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process |
| CN108821747A (en) * | 2018-06-14 | 2018-11-16 | 徐州世润德环保科技有限公司 | Biofilter material and preparation method thereof, biological aerated filter |
| CN114467840A (en) * | 2022-03-16 | 2022-05-13 | 国家海洋环境监测中心 | Preparation method and device of reinforced particles for in-situ treatment of seawater pond culture tail water |
-
2013
- 2013-12-10 CN CN201310662817.0A patent/CN103724047A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759149A (en) * | 2015-03-18 | 2015-07-08 | 蚌埠德美过滤技术有限公司 | High-activity composite filter material prepared by blending melt-blown polypropylene with modified kaolin and used for sewage treatment and preparation method thereof |
| CN105921005A (en) * | 2016-05-25 | 2016-09-07 | 陕西绿恒农业生物科技有限公司 | Efficient biological purifying technology for purifying malodorous waste gas in organic fertilizer producing process |
| CN108821747A (en) * | 2018-06-14 | 2018-11-16 | 徐州世润德环保科技有限公司 | Biofilter material and preparation method thereof, biological aerated filter |
| CN114467840A (en) * | 2022-03-16 | 2022-05-13 | 国家海洋环境监测中心 | Preparation method and device of reinforced particles for in-situ treatment of seawater pond culture tail water |
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Application publication date: 20140416 |
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