CN102910727B - A kind of biofilter material and preparation method thereof - Google Patents
A kind of biofilter material and preparation method thereof Download PDFInfo
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- CN102910727B CN102910727B CN201110218001.XA CN201110218001A CN102910727B CN 102910727 B CN102910727 B CN 102910727B CN 201110218001 A CN201110218001 A CN 201110218001A CN 102910727 B CN102910727 B CN 102910727B
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- biofilter 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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Abstract
The invention provides a kind of biofilter material and preparation method thereof, the porous ceramic grain that this biofilter material is rich in biological nutrition by absorption forms, and biofilter material surface forms hydrophobic coating layer, can realize biological nutrition controllable release.The invention provides the preparation method of this biofilter material simultaneously, the method is characterized in that and stir in roughening process on haydite surface, add biological nutrition liquor simultaneously, biological nutrient liquid absorption enters porous ceramic grain, form the haydite being rich in biological nutrient liquid, finally by interpolation hydrophobic sol, make hydrophobic sol form surface water-repellent layer in drying process subsequently, obtain the biofilter material being rich in nutritive medium.This biofilter material has the feature of nutritive ingredient slowly-releasing controllable release, can be widely used in the field such as bio-trickling and biological deodorizing.
Description
Technical field
The present invention relates to a kind of biofilter material, particularly relate to and be a kind ofly rich in nutrition and can the controlled biofilter material of slowly-releasing, be mainly used as wastewater treatment, waste-gas cleaning.The present invention also relates to the preparation method of this biofilter material simultaneously.
Background technology
The biofilter material loaded in biological filter can not only be made to be separated with suspended impurity by the Organic substance in water of filtrate by the pore existed in the gap of filtrate and filtrate, and, the biofilter material loaded in biological filter can also provide applicable environment for the micropopulation of abundant species in biological deodorizer perches growth, degraded can be absorbed by the various foul smell in biological device by the stable ecologic community of filling surface like this, reach the object that foul smell is removed.In the process of growth of biofilter material surface-stable ecologic community, often need to add a certain amount of biological growth composition, as various bio-feritlizer, biological nutrition etc., these compositions are generally added by spray in trickling filter process, the bottom of filtering layer is progressively diffused into by the top of filtering layer, and in biofiltration process, these biological growth compositions add according to certain time interval.Such feed postition is not only time-consuming, and biological growth composition is also difficult to evenly be absorbed by filtrate, and cause upper strata filtrate growth components concentration high, lower floor's filtrate growth components concentration is low, has a strong impact on the biological function of filtrate.Therefore, growth components can have a huge impact to the strainability of filtrate and the density of biological and ecological group and kind.
The present invention is just based on to this filtrate growth components ununiformity and continue the problem adding troublesome poeration, propose and adopt controllable sustained-release to control growth components slow releasing, these growth components can not only be made to be evenly distributed in biofilter material, and, can life-time service, overcome the step continuing to add biological growth composition.The biofilter material bio-film colonization excellent property obtained, steady in a long-term, easy and simple to handle.
Summary of the invention
The object of this invention is to provide the biofilter material that a kind of nutritive ingredient slowly-releasing is controlled.
Another object of the present invention is to provide the method for the controlled biofilter material of a kind of this nutritive ingredient slowly-releasing of preparation succinctly.
Technical scheme provided by the invention is:
A kind of preparation method of biofilter material, be characterised in that by adding biological nutrient in ceramic filter material surface irregularity process, nutritive ingredient is made to be adsorbed on porous ceramics inside, and form hydrophobic coating layer on surface, control nutritive ingredient in use slow releasing, reach nutrition distribution pattern evenly, the object of life-time service.Specifically, haydite is placed in mixing drum, the tiny rubble or metal cutting wire etc. that add certain content carry out rough polish to haydite surface, after surface irregularity polishing certain hour, add nutritive medium solution and carry out continuation polishing stirring, add a certain amount of hydrophobic sol etc. subsequently to carry out stirring and form surface-coating, the filtrate after coating by with being separated of rubble or metal cutting wire, form the biofilter material being rich in nutritive medium of surface-coating after dry.In the filtrate preparation process being rich in nutritive ingredient, by controlling the parameters such as churning time, nutritive ingredient concentration, the coated concentration of surface hydrophobicity, the controllable sustained-release biofilter material being rich in the nutritive ingredients such as nitrogen, phosphorus, potassium and agar can be obtained.
Accompanying drawing explanation
Fig. 1 is the slow-release time change of biofilter material obtained by embodiment 1.
Fig. 2 is the slow-release time change of biofilter material obtained by embodiment 2.
Fig. 3 is the slow-release time change of biofilter material obtained by embodiment 3.
Embodiment
Below by embodiment, illustrate outstanding feature of the present invention and marked improvement further, be only the present invention is described and never limits the present invention.
Embodiment 1:
The haydite that 300 kilograms of sizes are about 15mm is placed in ball grinding stirring still, add the band corner angle rubble that 10 kilograms of sizes are about 5mm, stir 30 minutes, then respectively add 10 liters of bicarbonate of ammonia and potassium primary phosphate saturated solution, stir 5 minutes, then add the polyvinyl alcohol solution 15 liters of 20%, continue stirring 10 minutes, utilize sieve to sieve rubble and haydite, finally the haydite sieved is carried out nature and stack dry, obtain controllable sustained-release biofilter material.This biofilter material is placed in biological filter, sprays appropriate water, carry out the detection of nutritive ingredient change, nutritive ingredient changes as shown in Figure 1 in time.
Embodiment 2:
The haydite that 300 kilograms of sizes are about 35mm is placed in ball grinding stirring still, add the metal cutting wire that 10 kilograms of length are about 55mm, stir 60 minutes, then respectively add 10 liters of bicarbonate of ammonia and potassium primary phosphate saturated solution, stir 15 minutes, then add the polyvinyl alcohol solution 15 liters of 20%, continue stirring 10 minutes, utilize sieve to sieve metal cutting wire and haydite, finally the haydite sieved is carried out nature and stack dry, obtain controllable sustained-release biofilter material.This biofilter material is placed in biological filter, sprays appropriate water, carry out the detection of nutritive ingredient change, nutritive ingredient changes as shown in Figure 2 in time.
Embodiment 3:
The haydite that 300 kilograms of sizes are about 15mm is placed in ball grinding stirring still, add the band corner angle rubble that 10 kilograms of sizes are about 5mm, stir 30 minutes, then respectively add 10 liters of bicarbonate of ammonia and potassium primary phosphate saturated solution, stir 5 minutes, then add the polyvinyl alcohol solution 20 liters of 30%, continue stirring 10 minutes, utilize sieve to sieve rubble and haydite, finally the haydite sieved is carried out nature and stack dry, obtain controllable sustained-release biofilter material.This biofilter material is placed in biological filter, sprays appropriate water, carry out the detection of nutritive ingredient change, nutritive ingredient changes as shown in Figure 3 in time.
Embodiment 4:
The haydite that 300 kilograms of sizes are about 15mm is placed in ball grinding stirring still, add the band corner angle rubble that 10 kilograms of sizes are about 5mm, stir 30 minutes, then respectively add 20 liters of bicarbonate of ammonia and potassium primary phosphate saturated solution, stir 5 minutes, then add the polyvinyl alcohol solution 15 liters of 20%, continue stirring 10 minutes, utilize sieve to sieve rubble and haydite, finally the haydite sieved is carried out nature and stack dry, obtain controllable sustained-release biofilter material.This biofilter material is placed in biological filter, sprays appropriate water, carry out the detection of nutritive ingredient change, when 60 days, the decline of nutritive ingredient is less than 2.5%.
Embodiment 5:
The haydite that 300 kilograms of sizes are about 15mm is placed in ball grinding stirring still, add the band corner angle rubble that 10 kilograms of sizes are about 5mm, stir 30 minutes, then respectively add 20 liters of bicarbonate of ammonia and potassium primary phosphate saturated solution, stir 5 minutes, then add the polyvinyl alcohol solution 15 liters of 20%, continue stirring 10 minutes, utilize sieve to sieve rubble and haydite, finally haydite sieve at 60 DEG C of heat dryings, acquisition controllable sustained-release biofilter material.This biofilter material is placed in biological filter, sprays appropriate water, carry out the detection of nutritive ingredient change, when 60 days, the decline of nutritive ingredient is less than 1.5%.
Claims (5)
1. a preparation method for biofilter material, is characterized in that comprising the following steps:
(1) haydite of vesicular structure is placed in mixing drum, the tiny rubble or the metal cutting wire that add certain content carry out rough polish to haydite surface;
(2), after surface irregularity polishing certain hour, add biological nutrition liquor and carry out continuation polishing, adsorbed by vesicular structure, form the biofilter material being rich in biological nutrient liquid;
(3), after adding biological nutrition liquor polishing certain hour, add a certain amount of hydrophobic sol and carry out stirring the hydrophobic layer forming surface-coating;
(4) filtrate after coating carries out being separated of biofilter material and rubble or metal cutting wire, then stacks seasoning or heat drying, formed surface-coating be rich in biological nutrient liquid and the biofilter material put of nutrition release-controllable.
2. preparation method as claimed in claim 1, it is characterized in that: in step (1), the size of tiny rubble is 5-10mm, the weight percent of interpolation is 3-20%; The length of metal cutting wire is 35-55mm, and the weight percent of interpolation is 5-20%.
3. preparation method as claimed in claim 1, it is characterized in that: in step (2), the time of surface irregularity polishing is 5-60 minute, the biological nutrient liquid added is nitrogenous fertilizer, potash fertilizer and phosphate fertilizer, its weight percent added is 1-10%, these compoundings are saturated solution, and are minimumly diluted to 20% of saturated solution.
4. preparation method as claimed in claim 1, it is characterized in that: the time adding nutritive medium polishing in step (3) is 5-60 minute, hydrophobic sol comprises polyvinyl alcohol, and the concentration expressed in percentage by weight of polyvinyl alcohol is 5-30%, and the weight ratio added is 1-10%.
5. preparation method as claimed in claim 1, is characterized in that: be separated into sieving separating or magnetic resolution described in step (4), and the temperature of heat drying controls lower than 150 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110218001.XA CN102910727B (en) | 2011-08-01 | 2011-08-01 | A kind of biofilter material and preparation method thereof |
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| CN201110218001.XA CN102910727B (en) | 2011-08-01 | 2011-08-01 | A kind of biofilter material and preparation method thereof |
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| CN102910727A CN102910727A (en) | 2013-02-06 |
| CN102910727B true CN102910727B (en) | 2015-09-23 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922859A (en) * | 2014-05-04 | 2014-07-16 | 扬州大学 | Preparation method of ammonium phosphate salt-coated fertilizer storage ceramsite |
| CN103922857A (en) * | 2014-05-04 | 2014-07-16 | 扬州大学 | Preparation method of phosphate-coated fertilizer storage ceramisite |
| CN105176962A (en) * | 2015-08-17 | 2015-12-23 | 杭州诚洁环保有限公司 | Method for immobilizing bio-enzyme in ceramic filling material |
| CN105409740B (en) * | 2015-11-11 | 2020-01-31 | 福建省亚热带植物研究所 | anoectochilus roxburghii water culture method |
| CN105776535B (en) * | 2016-05-19 | 2018-11-02 | 沈阳理工大学 | A kind of preparation method of sustained release nickel element biological ceramic particle |
| CN105993687A (en) * | 2016-05-26 | 2016-10-12 | 卒子科技（深圳）有限公司 | Formula and preparation process of indoor plant growth pottery clay |
| CN108101226B (en) * | 2018-01-05 | 2021-01-05 | 烟台大学 | Rapid film-forming technology for high-surface-energy filter material |
| CN108101225B (en) * | 2018-01-05 | 2021-01-05 | 烟台大学 | Rapid film forming technology for low-surface-energy material filter material |
| CN113305731A (en) * | 2021-06-16 | 2021-08-27 | 南京博泽环境科技有限公司 | High-performance biological deodorization filter material and method thereof |
Citations (3)
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|---|---|---|---|---|
| CN100999361A (en) * | 2007-01-05 | 2007-07-18 | 华南理工大学 | Nutrition slow-release type biofiller for water treatment and its preparation method |
| CN101264985A (en) * | 2008-04-18 | 2008-09-17 | 昆山工研院华科生物高分子材料研究所有限公司 | Microorganism water purification slow release body and preparation method thereof |
| CN101948166A (en) * | 2010-09-06 | 2011-01-19 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Preparation method of modified biologically-activated filter fillings |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5118722B2 (en) * | 2010-05-14 | 2013-01-16 | 中部電力株式会社 | Wastewater treatment system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999361A (en) * | 2007-01-05 | 2007-07-18 | 华南理工大学 | Nutrition slow-release type biofiller for water treatment and its preparation method |
| CN101264985A (en) * | 2008-04-18 | 2008-09-17 | 昆山工研院华科生物高分子材料研究所有限公司 | Microorganism water purification slow release body and preparation method thereof |
| CN101948166A (en) * | 2010-09-06 | 2011-01-19 | 甘肃金桥给水排水设计与工程(集团)有限公司 | Preparation method of modified biologically-activated filter fillings |
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| Title |
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| 基于表面预处理的生物陶粒污水处理性能的试验研究;江帆等;《科学技术与工程》;20060831;第6卷(第16期);摘要，第2514页左栏第1段，第2516页右栏第3-5段 * |
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