CN202881476U - Composite fiber for water treatment of skin core structure - Google Patents
Composite fiber for water treatment of skin core structure Download PDFInfo
- Publication number
- CN202881476U CN202881476U CN2012202110479U CN201220211047U CN202881476U CN 202881476 U CN202881476 U CN 202881476U CN 2012202110479 U CN2012202110479 U CN 2012202110479U CN 201220211047 U CN201220211047 U CN 201220211047U CN 202881476 U CN202881476 U CN 202881476U
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- skin
- water treatment
- core structure
- carbon source
- sandwich layer
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- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model relates to a composite fiber for water treatment of a skin core structure. At present, a synthetic polymer used in water treatment is particle-shaped, so that the treatment efficiency is low, the controllability is poor and and recovery is difficult to realize. The skin core structure used by the utility model comprises a skin layer with a circular section and core layers; each core layer is made of a supporting material; the skin layer is made of a carbon source material; one, two or multiple core layers are arranged; and in the skin core structure of one core layer, the core layer and the skin layer are concentrically or eccentrically arranged. The composite fiber can be weaved into fabric or the composite fiber can form non-woven fabric or felt as a composite material for the water treatment. The carbon source material used in the utility model provides an organic carbon source and a mycoderm carrier for denitrifying bacteria; and no biodegradation of the supporting material exists in a water treatment process, so that the state integrity of the composite material can be kept. The composite material has good recoverability, and can be conveniently launched and recovered at any time. Not only can the cost be reduced, but also the secondary pollution can be effectively avoided.
Description
Technical field
The utility model belongs to water treatment field, is specifically related to a kind of skin-core structure water treatment composite fibre.
Background technology
Along with industrial and agricultural development, the water body of many countries and regions all is subject to azotate pollution, causes potential dangers such as " carcinogenic, cause change, teratogenesis ".All contain total nitrogen in China's Main River Systems, lake and the groundwater pollution index, and nitrate conduct important indicator wherein, continue to raise year after year.Because the organic carbon content in surface water or the underground water is lower, can not satisfy the biological denitrification denitrogenation to the demand of carbon source, must add extra carbon source for this reason.
The current liquid or solid carbon source of having reported such as methyl alcohol, ethanol, cellulose etc., exists all that injected volume is uncontrollable, denitrification efficiency is low, cause secondary pollution problems.Utilize in recent years synthetic polymer as solid carbon source, obtained certain progress.Be that the Chinese invention patent of CN101456623A discloses a kind of PLA (PLA) that utilizes as the denitrogenation method of carbon source and biofilm carrier such as publication number.Document (Appl.Microbiol Biotechnol2003; 61:103-109) report, polyhydroxyalkanoatefrom (PHA) homopolymers or copolymer can be by playing denitrification for the denitrifying bacterium in the water provides organic carbon source.But the synthetic polymer (PLA, PHA etc.) that uses in water treatment at present is graininess, although can form mycoderm on its surface, the specific area of particle is little, and treatment effeciency is low, and poor controllability is difficult to reclaim, and also is unwell in water body in large and uses.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of skin-core structure water treatment composite fibre is provided.
Composite fibre of the present utility model is skin-core structure, comprises that the cross section is circular cortex and sandwich layer, and sandwich layer adopts backing material, and cortex adopts carbon source material;
Described backing material is a kind of in polyethylene (PE), polypropylene (PP), polyamide (PA), polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), the polybutylene terephthalate (PBT) (PBT);
Described carbon source material is poly 3-hydroxy butyrate (P-3HB), poly-4 hydroxybutyric acid ester (P-4HB), poly-3-hydroxybutyrate-4 hydroxybutyric acid copolyesters (P-3HB-4HB), poly-3-hydroxybutyrate-valeric acid copolyesters (PHBV) or poly-3-hydroxybutyrate-caproic acid copolyesters (PHBH).
Sandwich layer in the described skin-core structure adopts one, two or more, and the skin-core structure center core layer of a sandwich layer and cortex arrange or eccentric setting with one heart.
Composite fibre of the present utility model can woven into fabric, perhaps consists of nonwoven fabric or felt with this composite fibre, the composite of using as water treatment.During use, composite is inserted in the reactor, adopt the up flow type water inlet, inoculum is the mud in the sewage treatment plant denitrification pond, makes the microbial adhesion in the mud form biomembrane at composite; Or with the direct fixed placement of composite in polluted water body, can add in advance microbial germ powder or bacterium liquid in the composite, make microorganism quick, amount reproduction on composite, form biomembrane, and utilize the high-specific surface area characteristic of composite, pollutant in filtration, the enrichment water body, thus reach purpose efficient, that concentrate degraded, clear the pollution off.
Has the composite of specific components and structure simultaneously as solid carbon source and biofilm carrier by employing, the carbon source material of composite fibre wherein provides organic carbon source and mycoderm carrier for denitrifying bacterium, and form the required time of mycoderm by composite fibre diameter and the control of carbon source material component, the clearing amount of water sample Central Asia nitrate and clearance rate are controlled, thereby are greatly improved efficient and the controllability of water treatment by the diameter (specific area) of composite fibre, thickness and the component of carbon source material.Backing material in the carbon source material consumption process and the carbon source material full consumption biodegradation does not all occur after falling, the integrality that in the use procedure of composite, keeps form, has good recuperability, can throw in easily at any time and reclaim, not only reduce cost, and effectively avoid secondary pollution.
Description of drawings
Fig. 1 is the structural representation of first embodiment of the utility model;
Fig. 2 is the structural representation of second embodiment of the utility model;
Fig. 3 is the structural representation of the 3rd embodiment of the utility model;
Fig. 4 is the structural representation of the 4th embodiment of the utility model.
The specific embodiment
Embodiment 1.
As shown in Figure 1, a kind of water treatment composite fibre adopts skin-core structure, comprises that a cross section is circular cortex 1-2 and the sandwich layer 1-1 that the cross section is circle, and cortex 1-2 arranges with sandwich layer 1-1 is concentric.Sandwich layer 1-1 material is polyethylene (PE), and cortex 1-2 is poly 3-hydroxy butyrate (P-3HB).
Embodiment 2.
As shown in Figure 2, a kind of water treatment composite fibre adopts skin-core structure, comprises that a cross section is circular cortex 2-2 and sandwich layer 2-1, cortex 2-2 and the sandwich layer 2-1 eccentric setting that the cross section is circle.Sandwich layer 2-1 material is polypropylene (PP), and cortex 2-2 is poly-4 hydroxybutyric acid ester (P-4HB).
Embodiment 3.
As shown in Figure 3, a kind of water treatment composite fibre adopts skin-core structure, comprises that a cross section is circular cortex 3-2 and two sandwich layer 3-1 that cross sections are circle.Sandwich layer 3-1 material is polyamide (PA), and cortex 3-2 is poly-3-hydroxybutyrate-4 hydroxybutyric acid copolyesters (P-3HB-4HB).
Embodiment 4.
As shown in Figure 4, a kind of water treatment composite fibre adopts skin-core structure, comprises that a cross section is circular cortex 4-2 and three sandwich layer 4-1 that cross sections are circle.Sandwich layer 4-1 material is polyethylene terephthalate (PET), and cortex 4-2 is poly-3-hydroxybutyrate-valeric acid copolyesters (PHBV).
Embodiment 5.
A kind of water treatment composite fibre adopts skin-core structure, comprises that a cross section is circular cortex and the sandwich layer that the cross section is circle, and cortex is concentric or eccentric setting with sandwich layer.Core material is polyethylene (PE)-polypropylene (PP) copolymer, and cortex is poly-3-hydroxybutyrate-caproic acid copolyesters (PHBH).
The material of above embodiment center core layer is backing material, and biodegradation does not occur in the water treatment procedure; The material of cortex is carbon source material, for denitrifying bacterium provides organic carbon source and mycoderm carrier.
Claims (3)
1. skin-core structure water treatment composite fibre, it is characterized in that: described composite fibre is skin-core structure, comprises that the cross section is circular cortex and sandwich layer, and sandwich layer adopts backing material, and cortex adopts carbon source material;
Described backing material is a kind of in polyethylene, polypropylene, polyamide, polyethylene terephthalate, polytrimethylene terephthalate, the polybutylene terephthalate (PBT);
Described carbon source material is poly 3-hydroxy butyrate, poly-4 hydroxybutyric acid ester, poly-3-hydroxybutyrate-4 hydroxybutyric acid copolyesters, poly-3-hydroxybutyrate-valeric acid copolyesters or poly-3-hydroxybutyrate-caproic acid copolyesters.
2. a kind of skin-core structure water treatment composite fibre as claimed in claim 1, it is characterized in that: the sandwich layer in the described skin-core structure is one, sandwich layer and cortex arrange or eccentric setting with one heart.
3. a kind of skin-core structure water treatment composite fibre as claimed in claim 1 is characterized in that: the sandwich layer in the described skin-core structure adopts two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202110479U CN202881476U (en) | 2012-05-11 | 2012-05-11 | Composite fiber for water treatment of skin core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202110479U CN202881476U (en) | 2012-05-11 | 2012-05-11 | Composite fiber for water treatment of skin core structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202881476U true CN202881476U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202110479U Expired - Lifetime CN202881476U (en) | 2012-05-11 | 2012-05-11 | Composite fiber for water treatment of skin core structure |
Country Status (1)
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| CN (1) | CN202881476U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734716A (en) * | 2016-02-23 | 2016-07-06 | 南通市中和化纤有限公司 | Polyamide-polyester reinforced composite fiber |
| CN106498513A (en) * | 2016-12-08 | 2017-03-15 | 上海理工大学 | A kind of microfluidic control shower nozzle of multistage decentralized casing, device for spinning and spinning process |
| CN109605844A (en) * | 2018-12-30 | 2019-04-12 | 杭州协业超纤有限公司 | A kind of Compound Fabric and its preparation process of Tan Xier fiber and elastic screen cloth |
| CN109703137A (en) * | 2018-12-30 | 2019-05-03 | 杭州协业超纤有限公司 | A kind of Compound Fabric and its preparation process of super fine denier viscose fiber and cotton gauze |
-
2012
- 2012-05-11 CN CN2012202110479U patent/CN202881476U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734716A (en) * | 2016-02-23 | 2016-07-06 | 南通市中和化纤有限公司 | Polyamide-polyester reinforced composite fiber |
| CN106498513A (en) * | 2016-12-08 | 2017-03-15 | 上海理工大学 | A kind of microfluidic control shower nozzle of multistage decentralized casing, device for spinning and spinning process |
| CN109605844A (en) * | 2018-12-30 | 2019-04-12 | 杭州协业超纤有限公司 | A kind of Compound Fabric and its preparation process of Tan Xier fiber and elastic screen cloth |
| CN109703137A (en) * | 2018-12-30 | 2019-05-03 | 杭州协业超纤有限公司 | A kind of Compound Fabric and its preparation process of super fine denier viscose fiber and cotton gauze |
| CN109703137B (en) * | 2018-12-30 | 2020-10-16 | 杭州协业超纤有限公司 | Composite cloth of superfine denier viscose fiber and full cotton gauze and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
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| CX01 | Expiry of patent term |