CN103951043A - Suspended filling material used for sewage processing - Google Patents
Suspended filling material used for sewage processing Download PDFInfo
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- CN103951043A CN103951043A CN201410143718.6A CN201410143718A CN103951043A CN 103951043 A CN103951043 A CN 103951043A CN 201410143718 A CN201410143718 A CN 201410143718A CN 103951043 A CN103951043 A CN 103951043A
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- Prior art keywords
- filling
- filler
- floating stuffing
- packing sheet
- sewage disposal
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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
A providd suspended filling material used for sewage processing is characterized in that the filling material is integrally in the shape of a ball, the surface is provided with a modified coating, and the diameter is 10-60 mm; the filling material comprises filling-material sheets and a filling-material nucleus; each filling-material sheet is a semi-annular thin sheet, and the filling-material nucleus is a hollow ball; the filling-material sheets are arranged in the tri-dimensional space round the filling-material nucleus in a radial manner; and the filling-material sheets and the filling-material nucleus are arranged in a concentric way, and the internal diameter of each filling-material sheet is equal to the external diameter of the filling-material nucleus. The suspended filling material is easy for film formation, and because the filling-material nucleus is hollow, the filling material is easy to suspend after a film is formed.
Description
Technical field
The invention belongs to sewage treatment area, relate to floating stuffing, be specifically related to the floating stuffing for sewage disposal.
Background technology
In recent years, along with improving constantly of sewage work's discharge standard, many sewage disposal plant aeration tanks drop into biological suspended packing in pond with certain proportion in the process of proposing mark transformation, form the sewage treatment process of mud film symbiosis.This technique, by add the suspending carrier of some amount in aeration tank, improves biomass and biological species in aeration tank, thereby improves the processing efficiency of aeration tank.The material of floating stuffing, taking polyethylene, polypropylene as main, is suitably added ancillary component, and density general control is 1.0g/cm
3left and right.So in aeration, be complete admixture with water, the environment of microorganism growth is gas, liquid, solid three-phase.Collision and the shearing action of carrier in water, makes air bubble more tiny, has increased the utilization ratio of oxygen.In addition, inside and outside each carrier, all there is different biological species, some anerobes of growth inside or double oxygen bacterium, outside has been bacteria, each like this carrier is a microreactor, nitration reaction and anti-nitration reaction is existed simultaneously, thereby improved treatment effect.
This type of technique combines the advantage of activated sludge process and biomembrance process, has effectively improved sewage treating efficiency.Aeration in dependence aeration tank and the castering action of current make carrier in fluidized state, and then the formation active sludge of suspension growth and the microbial film of apposition growth, this just makes moving-bed biofilm use whole space reactor, give full play to and adhere to mutually and both superiority of suspending phase biology, make it to maximize favourable factors and minimize unfavourable ones, mutually supplement.Different from filler in the past, floating stuffing can thereby be called as with the frequent multiple-contact of sewage " mobile microbial film ".
Floating stuffing has following some advantage:
(1) volumetric loading is high, compact province ground.Remarkable to existing sewage work (facility) upgrading effect especially, not increasing land area only needs existing utility simply to transform, and sewage treatment capacity can effectively increase, and improves effluent quality.
(2) shock-resistance is strong, and stable performance is reliable.Impact load and temperature variation will be far smaller than the impact on activated sludge process to the impact of technique.When sewage composition change or sewage toxicity increase time, the microbial film on floating stuffing top layer is strong to this tolerance.
(3) strong adaptability, can coexist with aerating system.Be applicable to various aerating systems, floating stuffing proportion is slightly lighter than water, and volume is much larger than solarization air cap, can blocking aeration system.
(4) biological tank is without obstruction, and biological tank volume is fully used, and there is no dead angle.Because filler and current can be mixed in the whole volume of biological tank, fundamentally stopped biological tank obstruction may, therefore, pond holds and is fully exploited.
(5) flexible.The handiness of technique is embodied in two aspects.On the one hand, can adopt various ponds type (depth circumference all can), and not affect the treatment effect of technique.On the other hand, can select very flexibly different media-filling rates, reach and take into account the requirement that expands treatment scale and hold without increase pond efficient and at a specified future date.For transformation and the upgrading of original Wastewater Treated by Activated Sludge Process factory, by adding floating stuffing, can organically combine with original technique, form active sludge-microbial film integrated technique.
(6) long service life.The biologic packing material that high-quality is durable, aerating system and discharging device can ensure whole system life-time service and do not need change, ratio of depreciation is low.
Carry for being widely used in sewage work the floating stuffing that mark is transformed, floating stuffing has effectively improved Sewage Plant aeration tank processing efficiency, the particularly removal to ammonia nitrogen really, can effectively improve.But in all multiple-project application, still find the problem that a lot of letters are to be solved:
(1) easy to be filmed not, the floating stuffing on market mostly adopts polyethylene or polypropylene material, and this type of material surface characteristic is mostly hydrophobicity, and not easy to be filmed, or biofilm insufficient strength, very easily come off.
(2) after biofilm, be difficult for suspending.Floating stuffing proportion is only slightly light than water, and after biofilm, proportion becomes large, even the in the situation that of aeration, is also difficult for suspending, and this just must cause treatment effect undesirable.
Can say, floating stuffing is the key part that sewage treatment process is proposed mark transformation, and it directly affects treatment effect, and the problem particularly reflecting for problem (2) is difficult for after biofilm suspending, and is that floating stuffing is badly in need of the major issue solving.
Summary of the invention
The technical problem solving: be not difficult in order to have solved floating stuffing the technical problem suspending after easy to be filmed and biofilm, the invention provides the floating stuffing for sewage disposal.
Technical scheme: the present invention achieves the above object by the following technical programs.
The invention provides the floating stuffing for sewage disposal, filler entirety is spherical, modified coating is established on surface, diameter is at 10～60mm, described floating stuffing comprises packing sheet and filler core, and packing sheet is semi-circular thin slice, and filler core is hollow ball, packing sheet is arranged in the circumnuclear three-dimensional space of filler symmetrically radially, and the internal diameter of packing sheet and filler core arranged concentric and packing sheet equals the external diameter of filler core.
The described floating stuffing for sewage disposal, at least 2 packing sheets are symmetrically located in the horizontal plane by filler core center, and all the other packing sheets are symmetrically located in the vertical plane by filler core center.
Described filler integral molded plastic forms, and entirety is spherical in shape, and diameter is at 10～60mm.
Described packing sheet diameter is 10～60mm, and thickness is 0.5～1.5mm.Lightweight impregnating material sealing for described filler core top layer, boring, skin depth is 0.5～1.5mm.
Described floating stuffing material adopts lightweight impregnating material, as high density polyethylene(HDPE).Preferably, in described floating stuffing material, add appropriate antioxidant.
Described modified coating can be the material that gac, diatomite or specific surface area are larger, and sticks to floating stuffing surface with binding agent.
The surface of described packing sheet is corrugated, and ripple height is 0.5～2.0mm.
According to the difference of packing sheet diameter, can adjust by changing filler nuclear diameter the proportion of whole floating stuffing, filler nuclear diameter can be 2.5～9.5mm, and the proportion of floating stuffing can be controlled in 0.86～0.92g/cm
3.
Described floating stuffing can singlely work alone, also can be by working after the establishment such as fiber or plastics bunchiness.
Beneficial effect:
The floating stuffing for sewage disposal the present invention relates to, advantage and effect are:
(1) easy to be filmed: modified coating is fixed on top layer, has improved the hydrophobic property of floating stuffing, makes filler be easy to biofilm;
(2) after biofilm, be easy to suspend: filler core is designed to hollow, by controlling the proportion of the whole floating stuffing of filler nuclear diameter size capable of regulating, makes filler after biofilm, be easy to suspend;
(3) specific surface area is large: modified coating is fixed on top layer, and surface do ripple processing by compacting, effectively increased specific surface area;
(4) be evenly distributed: can in depth of water direction, arrange different specific weight filler by selecting different filler nuclear diameter, make filler present the state of being uniformly distributed, thereby realize more efficient treatment effect;
(5) flexible working mode: floating stuffing can be worked in a kind of proportion mode, also can work after proportioning by a certain percentage by multiple proportion; Can after input in bulk, work, deposit with mesh bag or filter circle in treating pond both sides; Also after can weaving bunchiness by fiber rope, work.
Brief description of the drawings
Fig. 1 is the drawing in side sectional elevation of filler of the present invention;
Fig. 2 is the longitudinal diagram of filler of the present invention;
Fig. 3 is filler single chip architecture schematic diagram of the present invention.
Wherein, 1-packing sheet; 2-filler core; 3-modified coating.
Embodiment
The following examples can make the present invention of those skilled in the art comprehend, but do not limit the present invention in any way.
Embodiment 1
For the floating stuffing of sewage disposal, entirety is spherical in shape, and surface is provided with modified coating, and diameter is at 10～60mm, and integral molded plastic forms.The material of floating stuffing adopts lightweight impregnating material, in the present embodiment, is high density polyethylene(HDPE).Floating stuffing comprises packing sheet 1 and filler core 2, packing sheet 1 is semi-circular thin slice, diameter is 10～60mm, and thickness is 0.5～1.5mm, and filler core 2 is hollow ball, top layer seals with high density polyethylene(HDPE), boring, skin depth is 0.5～1.5mm, packing sheet 1 is arranged in filler core 2 three-dimensional space around symmetrically radially, the internal diameter of packing sheet 1 and filler core 2 arranged concentric and packing sheet 1 equals the external diameter of filler core 2, and filling surface painting is processed with modified coating 3.
As shown in Figure 1, the floating stuffing of the present embodiment comprises 10 packing sheets 1, and wherein 2 packing sheets 1 are symmetrically located in the horizontal plane by filler core 2 centers, and all the other 8 packing sheets 1 are symmetrically located in the vertical plane by filler core 2 centers between two.
Corrosion in water is stronger, easily makes filler produce aging and disrepair phenomenon, shortens the work-ing life of filler, can in floating stuffing material, add appropriate antioxidant.
The coating of filling surface can be the material that gac, diatomite or specific surface area are larger, sticks to floating stuffing surface with binding agent.In the present embodiment, described coating adopts gac.Because filling surface is fixed with activated carbon modified coating, improve the hydrophobic property of filler material, make packing sheet be easy to biofilm.
Packing sheet surface is corrugated, and ripple height is 0.5～2.0mm.In the present embodiment, corrugated is suppressed by mould.Because ripple has been suppressed on packing sheet surface, effectively increase specific surface area, increase biofilm area, strengthen treatment effect.
Because filler core is designed to hollowly, according to the difference of packing sheet diameter, can adjusts the proportion of whole floating stuffing by changing filler nuclear diameter, and make filler after biofilm, be easy to suspend.Filler nuclear diameter can be 2.5～9.5mm, and the specific gravity control of floating stuffing is at 0.86～0.92g/cm
3.
Because packing density is close to water, the aeration in dependence aeration tank and the castering action of current make filler in fluidized state, and then form the active sludge of suspension growth and the microbial film of apposition growth, give full play to and adhere to mutually and both superiority of suspending phase biology.Meanwhile, filler rolling along with aeration in water, can further carry out shearing action to air bubble, makes air bubble more tiny, has increased oxygen transfer efficiency.In addition, inside and outside the microbial film of each filler top layer, there is the gradient of oxygen, the biological species that energy growth is dissimilar, some anerobes of growth inside or double oxygen bacterium, outside has been bacteria, each like this filler can be regarded a miniature anaerobic/anoxic/aerobic reactor as, can realize synchronously carrying out of nitrification and denitrification, thereby improve treatment effect.
By add the floating stuffing of the present invention of some amount in activated sludge process aeration tank, can improve biomass and biological species in aeration tank, thereby improve the processing efficiency of system.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, any scheme after the present invention's letter conversion is all belonged to protection scope of the present invention.
Claims (5)
1. for the floating stuffing of sewage disposal, it is characterized in that: filler entirety is spherical in shape, modified coating is established on surface, diameter is at 10～60mm, comprise packing sheet and filler core, packing sheet is semi-circular thin slice, and filler core is hollow ball, packing sheet is arranged in the circumnuclear three-dimensional space of filler symmetrically radially, and the internal diameter of packing sheet and filler core arranged concentric and packing sheet equals the external diameter of filler core.
2. the floating stuffing for sewage disposal as claimed in claim 1, is characterized in that: at least 2 packing sheets are symmetrically located in the horizontal plane by filler core center, and all the other packing sheets are symmetrically located in the vertical plane by filler core center.
3. the floating stuffing for sewage disposal as claimed in claim 1, is characterized in that: described modified coating is gac or diatomite.
4. the floating stuffing for sewage disposal as claimed in claim 1, is characterized in that: the surface of described packing sheet is corrugated, and ripple height is 0.5～2.0mm.
5. the floating stuffing for sewage disposal as claimed in claim 1, is characterized in that: the material of described floating stuffing is lightweight impregnating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143718.6A CN103951043B (en) | 2014-04-10 | 2014-04-10 | Suspended filling material used for sewage processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143718.6A CN103951043B (en) | 2014-04-10 | 2014-04-10 | Suspended filling material used for sewage processing |
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| Publication Number | Publication Date |
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| CN103951043A true CN103951043A (en) | 2014-07-30 |
| CN103951043B CN103951043B (en) | 2017-01-18 |
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| CN201410143718.6A Active CN103951043B (en) | 2014-04-10 | 2014-04-10 | Suspended filling material used for sewage processing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347461A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Heterogeneous fenton catalysis filler |
| CN107827247A (en) * | 2017-11-14 | 2018-03-23 | 如皋千骏工具有限公司 | A kind of Novel filtration ball |
| CN107983134A (en) * | 2018-01-30 | 2018-05-04 | 重庆坤泉环境工程有限公司 | Gas purification tower and exhaust gas purification equipment |
| CN108658234A (en) * | 2018-06-12 | 2018-10-16 | 马鞍山三塔环保科技有限公司 | A kind of fused device of sewage disposal module type balancing water pressure layering aqueous vapor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529868Y (en) * | 2002-02-01 | 2003-01-08 | 周增炎 | Novel suspension biological carrier filling |
| CN102827410A (en) * | 2012-08-17 | 2012-12-19 | 四川亿思通科技工程有限公司 | Bioaffinity hydrophilic magnetic suspended filler and preparation method thereof |
-
2014
- 2014-04-10 CN CN201410143718.6A patent/CN103951043B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2529868Y (en) * | 2002-02-01 | 2003-01-08 | 周增炎 | Novel suspension biological carrier filling |
| CN102827410A (en) * | 2012-08-17 | 2012-12-19 | 四川亿思通科技工程有限公司 | Bioaffinity hydrophilic magnetic suspended filler and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105347461A (en) * | 2015-11-30 | 2016-02-24 | 无锡工源机械有限公司 | Heterogeneous fenton catalysis filler |
| CN107827247A (en) * | 2017-11-14 | 2018-03-23 | 如皋千骏工具有限公司 | A kind of Novel filtration ball |
| CN107983134A (en) * | 2018-01-30 | 2018-05-04 | 重庆坤泉环境工程有限公司 | Gas purification tower and exhaust gas purification equipment |
| CN108658234A (en) * | 2018-06-12 | 2018-10-16 | 马鞍山三塔环保科技有限公司 | A kind of fused device of sewage disposal module type balancing water pressure layering aqueous vapor |
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| Publication number | Publication date |
|---|---|
| CN103951043B (en) | 2017-01-18 |
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Effective date of registration: 20200318 Address after: No. 618, Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: Zhongqing ecological environment (Ningbo) Co.,Ltd. Address before: 211100 Jiangsu City, Jiangning Province Development Zone, West Road, No. 8 Buddha Co-patentee before: NANJING HEHAI TECHNOLOGY Ltd. Patentee before: HOHAI University |
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Effective date of registration: 20200911 Address after: Floor 2, block B4, Jiulonghu headquarters park, No. 19 Suyuan Avenue, Jiangning District, Nanjing, Jiangsu Province (Jiangning Development Zone) Patentee after: Zhongqing Xinyi environment (Nanjing) Co.,Ltd. Address before: No. 618, Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: Zhongqing ecological environment (Ningbo) Co.,Ltd. |
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