CN1569683A - Novel filter material used in process of bio-aeration filter tank - Google Patents
Novel filter material used in process of bio-aeration filter tank Download PDFInfo
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- CN1569683A CN1569683A CNA031354750A CN03135475A CN1569683A CN 1569683 A CN1569683 A CN 1569683A CN A031354750 A CNA031354750 A CN A031354750A CN 03135475 A CN03135475 A CN 03135475A CN 1569683 A CN1569683 A CN 1569683A
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- filtrate
- pore
- novel
- biological aerated
- core material
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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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- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a novel filter material used in process of bio-aeration filter tank, which comprises (by weight percentage) coal ash 30-60%, adhesives 30-65%, lightweight porous granulate 1-8%, pore-forming agent 0.5-5%. The composition is prepared by using lightweight porous granulate with a finite grain size e.g. expanded perlite as core material, using coal ash, adhesives and pore-forming agent as cover material through mixing, spraying water onto core material, curing and solidifying.
Description
Technical field
The present invention relates to a kind of filtrate that is applied in the biological aerated filter technology, definitely say so a kind of being suitable for, community life sewage, and the biological aerated filter technology filtrate of using in river, the lake micro-polluted water treatment system at city domestic sewage.
Background technology
Biological aerated filter technology, it is a kind of microbial film treatment process that utilizes granule filter material as bio-carrier, this technology is owing to have stable, anti-shock loading, characteristics such as dwell time of sewage is short, floor space is little, processing efficiency height, can be widely used in municipal sewage treatment, community life sewage is handled and river, lake micro-polluted water is handled.This technology has developed into more than 100 at present in Europe, China has caused progressively popularization at home of enough attention after Dalian in 2000 Ma Lan river sewage work adopts this technology first.Because the main at present filtrates such as import volcanic ash filtrate, ceramic grain filter, polystyrene spherolite that adopt of this technology, filtrate expense higher (1300-1500 unit/more than the ton), part filtrate technological effect is undesirable, has hindered biological aerated filter Technology applying at home.
Be applied to the filtrate of angry aerating filter technology, except that having suitable proportion, also must have: the filtrate grating that (1) is suitable; (2) enough physical strength; (3) enough chemical stability; (4) bigger specific surface area; (5) bigger characteristics such as inside and outside porosity.The filtrate that is usually used in biological aerated filter at present has filtrates such as import volcanic ash filtrate, ceramic grain filter, polystyrene spherolite.Ceramic grain filter adopts high-temperature roasting to make, and the polystyrene spherolite adopts chemistry to make ball and makes filtrate complex manufacturing technology, with high costs.
Summary of the invention
The objective of the invention is to: provide a kind of raw material cheap and easy to get, manufacture craft is simple, have bigger serface and porosity, favourable microorganism growth breeding, physical chemistry, biological property reach at present the parameter level at the biological aerated filter technology filtrate of usefulness, a kind of novel filtrate that its price is cheap again.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of novel filtrate composition that is applied in the biological aerated filter technology is characterized in that: by weight percentage, include flyash 30-60%, tackiness agent 30-65%, light porous pellet 1-8%, pore-forming material 0.5-5%.
Filtrate of the present invention is the light porous pellet with certain particle size, and for example pearlstone, float stone, sepiolite are core material, mixes with flyash, pore-forming material and tackiness agent and makes ball as dress material.The core material granularity is decided as requested, and consumption is 1-8%, and the flyash consumption is 30-60%, and binder dosage is 30-65%, and the pore-forming material consumption is 0.5-5%.
The novel filtrate making method of the present invention is as follows:
With the flyash of proportional quantity, tackiness agent, the pore-forming material mix evenly makes to mix dress material; The light porous pellet that will have certain particle size is sent in the pelletizer as core material, on one side to the core material water spray, send into the mixing dress material in the pelletizer on one side and make ball continuously, the finish mix ball is removed underproof particle with mesh screen, eligible is put into the pond ageing, place and add water curing after 20 hours and solidified 2-5 days, and then screening, clean, dehydration, air-dry, the test package in surface.
The advantage of the novel filtrate of the present invention is: compare with import volcanic ash filtrate, ceramic grain filter, polystyrene spherolite filtrate, its cost is lower; Its physical chemistry over-all properties has reached the standard of import volcanic ash filtrate, is better than ceramic grain filter and polystyrene spherolite filtrate.The novel filtering media application of the present invention is handled sanitary sewage in biological aerated filter technology, and it removes pollutent (chemical oxygen demand cod, biological oxygen demand (BOD) BOD, NH
3-N) effect all is better than ceramic grain filter, can guarantee that the water outlet pollutant load is lower than national sewage discharge primary standard.
Embodiment
1 one kinds of novel filtrates that are applied in the biological aerated filter technology of example, by weight percentage, its component is as follows:
Flyash 32%
Pearlstone 2%
Tackiness agent (adopting 42.5R model cement) 65%
Pore-forming material (employing calcium carbide powder) 1%
Making method: select for use the pearlstone of particle diameter 2-3mm to make core material, proportional quantity flyash, cement, calcium carbide powder mix are evenly made to mix dress material, the pearlstone core material is sent into pelletizer, Yi Bian spray water to core material, on one side send into the mixing dress material in the pelletizer and make ball continuously, the filter bulb that produces is sieved, stay the spherical filtrate of 4-5mm particle diameter, put into the pond ageing, place after 20 hours, add water curing 2-5 days, and then screening, cleaning and dewatering, air-dry, the test package in surface.
Be the performance comparison sheet of novel filtrate of the present invention and existing ceramic grain filter below:
The test data that provides is found out from table: under the big or small same case of filtrate ball, novel filtrate interior porosity height of the present invention, specific surface area are big, more help microbial growth and breeding, and sewage treatment effect is better than ceramic grain filter.
The composition of the novel filtrate of example 2 the present invention: (weight percent)
Flyash 50%
Cement 45.5%
Calcium carbide powder 1.5%
Pearlstone 3%
Choose the pearlstone of particle diameter 2-3mm and make core material, produce the filtrate ball of particle diameter 4-5mm by example 1 identical method.
The performance of novel filtrate of the present invention and ceramic grain filter compares:
The test data that provides from table is found out: novel filtrate interior porosity of the present invention is higher, and specific surface area is bigger, and the effect ratio 1 in biological aerated filter technology is better.
Adopt filtrate of the present invention to carry out biological aerated filter technology, the test-results of Treating Municipal Sewage is as follows:
Two cover Φ, 300 * 3300mm synthetic glass post is adopted in test, loads filtrate of the present invention and existing ceramic grain filter respectively, and filtrate is loaded 2 meters of height, and loading volume is 0.1413 cubic metre; Sewage is taken from the water outlet of certain large-scale wastewater treatment plant preliminary sedimentation tank, per hour 0.1 cubic metre of sewage flooding quantity, and steady running the results are shown in following table:
Wherein CODcr is the chemical oxygen demand of measuring with potassium dichromate process, BOD
5Be to cultivate the biological oxygen demand (BOD) of measuring in 5 days in incubator, SS is meant suspended substance.
Claims (3)
1, a kind of novel filtrate composition that is applied in the biological aerated filter technology is characterized in that: by weight percentage, include: flyash 30-60%, tackiness agent 30-65%, light porous pellet 1-8%, pore-forming material 0.5-5%.
2, according to the described novel filtrate composition that is applied in the biological aerated filter technology of claim 1, it is characterized in that: make the internal layer core material with light porous pellet; Flyash, tackiness agent, pore-forming material mix makes outer dress material.
3, according to claim 1, the 2 described novel filtrate compositions that are applied in the biological aerated filter technology, it is characterized in that: the described light porous pellet of making filtrate internal layer core material can be pearlstone, float stone, sepiolite; The tackiness agent of making the outer dress material of mixing is a cement, and pore-forming material is a calcium carbide powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031354750A CN100355671C (en) | 2003-07-24 | 2003-07-24 | Novel filter material used in process of bio-aeration filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031354750A CN100355671C (en) | 2003-07-24 | 2003-07-24 | Novel filter material used in process of bio-aeration filter tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1569683A true CN1569683A (en) | 2005-01-26 |
| CN100355671C CN100355671C (en) | 2007-12-19 |
Family
ID=34470319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031354750A Expired - Fee Related CN100355671C (en) | 2003-07-24 | 2003-07-24 | Novel filter material used in process of bio-aeration filter tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100355671C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100417605C (en) * | 2006-05-25 | 2008-09-10 | 甘肃金桥给水排水设计与工程有限公司 | Highly effective filtering material for biology and its preparation method |
| CN100420640C (en) * | 2006-05-25 | 2008-09-24 | 甘肃金桥给水排水设计与工程有限公司 | Lightweight highly effective filtering material for biology and its preparation method |
| CN100450968C (en) * | 2006-04-30 | 2009-01-14 | 中国地质科学院地质研究所 | Method for preparing microporous mullite aerated head(plate) by fly ash |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
| CN102824894A (en) * | 2011-06-14 | 2012-12-19 | 辽宁科技大学 | Preparation method of granular fly ash used as water purifying agent |
| CN106396725A (en) * | 2016-07-25 | 2017-02-15 | 清水源（上海）环保科技有限公司 | A preparing method of a lightweight ceramsite biological filter material |
| CN107055759A (en) * | 2017-01-23 | 2017-08-18 | 和县伊迈炭业有限责任公司 | Aerating biological filter pool filler processing aggregate prepared by a kind of utilization volcanic ash |
| 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 |
| CN108558368A (en) * | 2018-06-13 | 2018-09-21 | 徐州世润德环保科技有限公司 | Multiporous biological filtrate and preparation method thereof |
| CN111362398A (en) * | 2020-04-13 | 2020-07-03 | 上海砼仁环保技术发展有限公司 | Water purification filler for water body ecological management and preparation method thereof |
| CN115636687A (en) * | 2022-05-09 | 2023-01-24 | 中冶长天国际工程有限责任公司 | Method and system for preparing light ceramsite by using heavy metal tailings |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11343181A (en) * | 1997-11-26 | 1999-12-14 | Toshiba Corp | Production of porous formed body, culture method, culture system and filtration system using the same porous body |
| JP3894732B2 (en) * | 2001-02-14 | 2007-03-22 | 株式会社カワシマ | Porous ceramic particles and method for producing the same |
| CN1150975C (en) * | 2002-03-14 | 2004-05-26 | 安徽工业大学华冶自动化工程公司 | Spherical porous light haydite for treating waste water and its production method |
-
2003
- 2003-07-24 CN CNB031354750A patent/CN100355671C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450968C (en) * | 2006-04-30 | 2009-01-14 | 中国地质科学院地质研究所 | Method for preparing microporous mullite aerated head(plate) by fly ash |
| CN100417605C (en) * | 2006-05-25 | 2008-09-10 | 甘肃金桥给水排水设计与工程有限公司 | Highly effective filtering material for biology and its preparation method |
| CN100420640C (en) * | 2006-05-25 | 2008-09-24 | 甘肃金桥给水排水设计与工程有限公司 | Lightweight highly effective filtering material for biology and its preparation method |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
| CN102824894A (en) * | 2011-06-14 | 2012-12-19 | 辽宁科技大学 | Preparation method of granular fly ash used as water purifying agent |
| CN102824894B (en) * | 2011-06-14 | 2014-08-27 | 辽宁科技大学 | Preparation method of granular fly ash used as water purifying agent |
| CN106396725A (en) * | 2016-07-25 | 2017-02-15 | 清水源（上海）环保科技有限公司 | A preparing method of a lightweight ceramsite biological filter material |
| CN107055759A (en) * | 2017-01-23 | 2017-08-18 | 和县伊迈炭业有限责任公司 | Aerating biological filter pool filler processing aggregate prepared by a kind of utilization volcanic ash |
| 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 |
| CN108558368A (en) * | 2018-06-13 | 2018-09-21 | 徐州世润德环保科技有限公司 | Multiporous biological filtrate and preparation method thereof |
| CN111362398A (en) * | 2020-04-13 | 2020-07-03 | 上海砼仁环保技术发展有限公司 | Water purification filler for water body ecological management and preparation method thereof |
| CN115636687A (en) * | 2022-05-09 | 2023-01-24 | 中冶长天国际工程有限责任公司 | Method and system for preparing light ceramsite by using heavy metal tailings |
| CN115636687B (en) * | 2022-05-09 | 2023-11-14 | 中冶长天国际工程有限责任公司 | Method and system for preparing light ceramsite by using heavy metal tailings |
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| Publication number | Publication date |
|---|---|
| CN100355671C (en) | 2007-12-19 |
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