WO2015176568A1 - 用于承载微生物的纤维束 - Google Patents

用于承载微生物的纤维束 Download PDF

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Publication number
WO2015176568A1
WO2015176568A1 PCT/CN2015/073280 CN2015073280W WO2015176568A1 WO 2015176568 A1 WO2015176568 A1 WO 2015176568A1 CN 2015073280 W CN2015073280 W CN 2015073280W WO 2015176568 A1 WO2015176568 A1 WO 2015176568A1
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WIPO (PCT)
Prior art keywords
fiber
filament
shaped
bundle
fiber bundle
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Ceased
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PCT/CN2015/073280
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English (en)
French (fr)
Inventor
刘凡清
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SHANGHAI FANQING ENVIRONMENTAL ENGINEERING Co Ltd
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SHANGHAI FANQING ENVIRONMENTAL ENGINEERING Co Ltd
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Application filed by SHANGHAI FANQING ENVIRONMENTAL ENGINEERING Co Ltd filed Critical SHANGHAI FANQING ENVIRONMENTAL ENGINEERING Co Ltd
Priority to EP15796284.6A priority Critical patent/EP3147263B1/en
Priority to US15/313,307 priority patent/US10392280B2/en
Priority to JP2017513294A priority patent/JP2017516655A/ja
Priority to KR1020167036096A priority patent/KR20170007474A/ko
Publication of WO2015176568A1 publication Critical patent/WO2015176568A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B01D53/85—Biological processes with gas-solid contact
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/109—Characterized by the shape
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/103—Textile-type packing
    • 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

Definitions

  • This invention relates to microbiological methods and fillers for water treatment and gas treatment.
  • the biological filter or biological contact oxidation device for sewage treatment and waste gas treatment is generally used for carrying microbes.
  • the filler is usually granular or massive, such as ceramsite, volcanic rock, lightweight plastic particles, polyurethane sponge block and the like. These fillers have the disadvantages of relatively small specific surface area, relatively low porosity, and easy clogging of the filler layer (filter layer).
  • a fiber bundle for carrying microorganisms for achieving the object of the present invention the fiber bundle being wound into a ring shape by fiber filaments or bundled at both ends into a bundle.
  • Another fiber bundle for carrying microorganisms for achieving the object of the present invention the fiber bundle being wound by a wire or a cord or a strip of filaments or filaments into a ring shape or bundled at both ends Or woven into a strip.
  • the fiber bundle is formed by connecting two or more fiber bundles through a rope or a connecting member.
  • the staple fiber or fiber filament has a circular or elliptical or cashew-shaped or triangular or pentagon or square or prismatic or Y-shaped or plum-shaped or cross-shaped or m-shaped or circular shape.
  • the outer surface of the fiber short or fiber filament is smooth or rough or grooved Or with holes or protrusions.
  • a plurality of the fiber bundles are respectively suspended on two supports to form a filler layer or a filter layer; a plurality of the fiber bundles are suspended from the support at the upper end and the lower end is hung to form a filler layer or a filter layer; The lower end of the fiber bundle is hung on the support and the upper end hangs the float to form a filler layer or a filter layer.
  • the filler layer or the filter layer is disposed in the casing to form a biological contact oxidation device or a biological filter or a biological filter, and an aeration device and a cleaning gas distribution device are disposed in the lower portion of the filler layer or the filter layer.
  • an aerated biological filter or biological contact oxidation device for degrading organic matter an aerated biological filter for degrading ammonia nitrogen or a biological contact oxidation device, and a denitrification filter for degrading nitrate nitrogen.
  • a biological contact oxidation device, a deodorizing filter for degrading odor or a biological contact oxidation device, a biological filter for degrading other substances, or a biological contact oxidation device are loaded on the surface of the fiber bundle filler to become an aerated biological filter or biological contact oxidation device for degrading organic matter, an aerated biological filter for degrading ammonia nitrogen or a biological contact oxidation device, and a denitrification filter for degrading nitrate nitrogen.
  • a biological contact oxidation device, a deodorizing filter for degrading odor or a biological contact oxidation device, a biological filter for degrading other substances, or a biological contact oxidation device are a biological contact oxidation
  • the fiber short fibers or the fiber filaments have a circular cross section, and the outer surface of the fiber short fibers or the fiber filaments is rough or provided with grooves or protrusions.
  • the outer surface of the fiber staple or fiber filament is rough or provided with grooves or protrusions which can significantly increase the specific surface area, thereby increasing the microbial load while retaining more microbial amount after washing.
  • the specific surface area is the ratio of surface area to volume.
  • the fiber short fiber or the fiber filament has a cross section of an elliptical or cashew shape or a triangle or a pentagon or a square or a prismatic or a Y-shaped or a plum-shaped or a cross or a m-shaped or a ring, the short fiber
  • the outer surface of the filament or fiber filament is smooth.
  • the cross-section of the fiber short or fiber filaments is non-circular, which also significantly increases the specific surface area, thereby increasing the microbial load while retaining more microbial biomass after washing.
  • the fiber short fiber or the fiber filament has a cross section of an elliptical or cashew shape or a triangle or a pentagon or a square or a prismatic or a Y-shaped or a plum-shaped or a cross or a m-shaped or a ring, the short fiber
  • the outer surface of the filament or fiber filament is roughened with grooves or protrusions.
  • the cross section of the fiber short fiber or the fiber filament is non-circular, and the outer surface of the fiber short fiber or the fiber filament is provided with a groove or a protrusion to more significantly increase the specific surface area, thereby increasing the microbial load, and at the same time, cleaning Keep more microbial biomass.
  • the filter layer formed by the fiber bundle for carrying microorganisms has the characteristics of large specific surface area, and the microbial unit can carry several times of the granular filter material, thereby significantly increasing the volumetric load and hydraulic load of the pollutant. .
  • Figure 1 is a schematic view of a fiber bundle for carrying microorganisms wound in a preferred embodiment of the present invention.
  • Figure 2 is a schematic view of a plurality of fiber bundles for carrying microorganisms in accordance with a preferred embodiment of the present invention.
  • Figure 3 is a schematic view of a fiber bundle for carrying microorganisms bundled in a preferred embodiment of the present invention.
  • Figure 4 is a schematic view of a plurality of fiber bundle suspensions for carrying microorganisms forming a filter layer in accordance with a preferred embodiment of the present invention.
  • Fig. 5 is a schematic view showing the structure of a fiber short or a fiber filament in a circular or non-circular cross section according to a preferred embodiment of the present invention.
  • Figure 6 is a schematic view showing the structure in which the outer surface of the fiber short fiber or the fiber filament is provided with a groove or a hole according to a preferred embodiment of the present invention.
  • Figure 7 is a schematic view showing the structure of the outer surface of the fiber short filament or the fiber filament of the preferred embodiment of the present invention.
  • Triangular fiber short or fiber filament 11
  • Plum-shaped fiber short or fiber filament 18
  • M-shaped fiber short or fiber filament 20
  • Ring fiber short or fiber filament 21
  • the present invention provides a fiber bundle for carrying microorganisms.
  • 1 is a fiber bundle 1 wound by a fiber filament, which is used to carry microorganisms;
  • FIG. 2 is a fiber bundle 1 which is wound by a plurality of stages and connected by a rope 2 A fiber bundle for carrying microorganisms;
  • Fig. 3 shows a fiber bundle 7 bundled with fiber filaments through a ligature 3 for carrying microorganisms.
  • the fiber bundle is wound by a fiber filament into a ring shape or bundled at both ends, or a wire or rope or strip made of fiber short or fiber filament is wound. Banded or bundled at both ends. Wherein the length of the fiber filaments is greater than the length of the fiber bundle, and the length of the fiber filaments is less than the length of the fiber bundle.
  • the two ends of the plurality of wound fiber bundles 1 are respectively suspended by the connecting member 4 on the upper support member 5 and the lower support member 6 to form a filter layer.
  • a functional microbial inoculation is applied to the wound fiber bundle 1 and the treated water or air or other fluid is treated through the filter layer from bottom to top or top to bottom or from left to right.
  • oxygenation aeration is required, air is sent to the filter layer through a lower or middle aeration device disposed in the filter layer.
  • the air is sent to the filter layer through the cleaning gas distribution device disposed at the lower portion of the filter layer.
  • the upper ends of several fiber bundles may also be hung on the support and the lower end may be hung to form a filter layer; or the lower ends of several fiber bundles may be hung on the support and the upper end may be hung to form a filter layer.
  • the filter layer is disposed in the casing to form a biological filter or a biological filter, and an aeration device and a cleaning gas distribution device are disposed at a lower portion of the filter layer.
  • loading different microorganisms on the surface of the fiber bundle filler becomes an aerated biological filter for degrading COD, an aerated biological filter for degrading ammonia nitrogen, a denitrifying filter for degrading nitrate nitrogen, a deodorizing filter for degrading odor, Biofilters that degrade other substances, etc.
  • the staple fibers or filaments are round staple fibers or filaments 8, i.e., have a circular cross section.
  • the outer surface of the fiber short or fiber filament is rough or provided with grooves or protrusions. This can significantly increase the specific surface area, thereby increasing the microbial load, while retaining more microbial biomass after washing.
  • the specific surface area is the ratio of surface area to volume.
  • the fiber bundle formed by the prior art in which the cross section is circular and the outer surface is smooth fiber short or fiber filament is circular in the cross section in this embodiment and the outer surface is rough or provided with grooves or protrusions.
  • the comparison data of the effect of the fiber bundle formed by the fiber short fiber or the fiber filament is shown in Table 1.
  • the filter layer formed by the fiber bundle in the present embodiment has a specific surface area increased by 20%-50% compared with the filter layer formed by the fiber bundle in the prior art, and the microbial load is also increased. 20%-50%.
  • the fiber bundle for carrying microorganisms of the present embodiment and the fiber bundle for carrying microorganisms of Example 1 have many similarities, and these similarities are not described again, and the examples are omitted.
  • the fiber bundle of 1 differs in that the cross section of the fiber short fiber or the fiber filament is elliptical or cashew-shaped or triangular or pentagon or square or prismatic or Y-shaped or plum-shaped or cross-shaped or m-shaped or ring-shaped, that is, the fiber is short
  • the filament or fiber filament is an elliptical fiber staple or fiber filament 9, or a cashew fiber short or fiber filament 10, or a triangular fiber staple or fiber filament 11, or a pentagonal fiber staple or fiber filament 12 , or square fiber short or fiber filament 13, or prismatic fiber short or fiber filament 14, or Y-shaped fiber short or fiber filament 15, or plum-shaped fiber short or fiber filament 18, or ten A short fiber or fiber filament 19, or a beige fiber or fiber filament 20, or a loop fiber or fiber filament 21
  • the short cross-section of the fiber short fiber or the fiber filament is non-circular, and the specific surface area can be remarkably increased, thereby increasing the microbial load, and at the same time, retaining more microbial amount after washing.
  • the fiber bundles formed in the prior art having a circular cross section and a smooth outer fiber or filaments are non-circular in cross section (ie, elliptical or cashew or triangular or pentagon or
  • the effect of square or prismatic or Y-shaped or plum-shaped or cross-shaped or m-shaped or ring-shaped and fiber bundles formed by smooth fiber short fibers or fiber filaments is shown in Table 2.
  • the filter layer formed by the fiber bundle in the present embodiment has a specific surface area increased by 10% to 100% compared with the filter layer formed by the fiber bundle in the prior art, and the microbial load is increased. 20%-50%.
  • the fiber bundle for carrying microorganisms of the present embodiment and the fiber bundle for carrying microorganisms of Example 1 have many similarities, and these similarities are not described again, and the examples are omitted.
  • the fiber bundle of 1 is different in cross section of elliptical or cashew-shaped or triangular or pentagon or square or prismatic or Y-shaped or plum-shaped or cross-shaped or m-shaped or ring-shaped.
  • the outer surface of the fiber staple or fiber filament is rough or provided with grooves 16 or protrusions 17.
  • the short side of the fiber short fiber or the fiber filament is non-circular and the outer surface of the fiber short fiber or the fiber filament is rough or provided with grooves or protrusions to more significantly increase the specific surface area, thereby enhancing microbial load The amount, while cleaning, retains more microbial biomass.
  • the fiber bundle formed by the prior art in which the cross section is circular and the outer surface is smooth fiber short or fiber filament is non-circular in cross section in this embodiment (ie, elliptical or cashew shape or triangle or
  • the comparison data of pentagonal or square or prismatic or Y-shaped or plum-shaped or cross-shaped or m-shaped or ring-shaped and fiber bundles formed by grooves or protruding fiber short fibers or fiber filaments on the outer surface are shown in Table 3. Shown.
  • the filter layer formed by the fiber bundle in the present embodiment has a specific surface area of 2.4-3 times that of the prior art compared with the filter layer formed by the fiber bundle in the prior art, and the microbial load thereof is The amount has increased by 80%-124%.
  • the filter layer formed by the fiber bundle for carrying microorganisms has the characteristics of large specific surface area and high porosity, and the microbial unit can carry several times of the granular filter material, and the cross section is A filter layer made of a fiber bundle formed of a non-circular outer surface or a fiber bundle formed by a groove or a protrusion of a fiber or a filament has a larger specific surface area than a filter layer of the prior art. Microbial capacity, which can significantly increase the volumetric load and hydraulic load of pollutants.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

一种用于承载微生物的纤维束，由纤维长丝绕制成环状或两端绑扎成束状，或由纤维短丝或纤维长丝制成的线、或绳索或条带绕制成环状或两端绑扎束状或编织成布条状。一种用于承载微生物的纤维束所构成的滤层具有比表面积大和孔隙率高的特点，微生物单位承载量可达颗粒状滤料的数倍。

Description

用于承载微生物的纤维束
本申请要求申请日为2014年5月23日的中国专利申请CN201410230690.X的优先权。本申请引用上述中国专利申请的全文。
技术领域
本发明涉及水处理和气处理的微生物方法及填料。
背景技术
现污水处理和废气处理的生物滤池或生物接触氧化装置用于承载微生物的填料通常为颗粒状或块状，如陶粒、火山岩、轻质塑料颗粒、聚胺酯海绵块等。这些填料具有比表面积比较小、孔隙率比较低、填料层(滤料层)容易堵塞等缺点。
发明内容
本发明的目的是为了克服现有技术中的缺陷，提供用于承载微生物的纤维束。
用于实现本发明目的的一种用于承载微生物的纤维束，所述纤维束由纤维长丝绕制成环状或两端绑扎成束状。
用于实现本发明目的的另一种用于承载微生物的纤维束，所述纤维束由纤维短丝或纤维长丝制成的线或绳索或条带绕制成环状或两端绑扎束状或编织成布条状。
较佳地，所述纤维束由两段及两段以上纤维束通过绳索或连接件连接而成。
较佳地，所述纤维短丝或纤维长丝的横截面为圆形或椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形。
较佳地，所述纤维短丝或纤维长丝的外表面为光滑的或粗糙的或有沟槽 的或有孔洞的或有突起的。
较佳地，若干所述纤维束两端分别悬挂在两个支撑物上形成填料层或滤层；若干所述纤维束上端悬挂在支撑物上且下端挂重坠形成填料层或滤层；若干所述纤维束下端悬挂在支撑物上且上端挂浮子形成填料层或滤层。
所述填料层或滤层设置在壳体内构成生物接触氧化装置或生物滤池或生物过滤器，在所述填料层或滤层下部设置曝气装置和清洗配气装置。
同时，在纤维束填料表面加载不同的微生物就成为降解有机物的曝气生物滤池或生物接触氧化装置、降解氨氮的曝气生物滤池或生物接触氧化装置、降解硝酸盐氮的反硝化滤池或生物接触氧化装置、降解臭气的除臭滤池或生物接触氧化装置、降解其它物质的生物滤池或生物接触氧化装置等。
较佳地，所述纤维短丝或纤维长丝的横截面为圆形，所述纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起。
纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起可显著提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。且比表面积为表面积与体积之比。
较佳地，所述纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，所述纤维短丝或纤维长丝的外表面为光滑的。
纤维短丝或纤维长丝的横截面为非圆形，也可显著提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。
较佳地，所述纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，所述纤维短丝或纤维长丝的外表面为粗糙的设置有沟槽或突起。
纤维短丝或纤维长丝的横截面为非圆形以及纤维短丝或纤维长丝的外表面设置有沟槽或突起能够更为显著的提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。
本发明提供的一种用于承载微生物的纤维束所构成的滤层具有比表面积大的特点，微生物单位承载量可达颗粒状滤料的数倍，从而可显著提高污染物容积负荷和水力负荷。
附图说明
下面结合附图详细描述本发明。
图1本发明较佳实施例的绕制而成的用于承载微生物的纤维束示意图。
图2本发明较佳实施例的多段用于承载微生物的纤维束示意图。
图3本发明较佳实施例的绑扎而成的用于承载微生物的纤维束示意图。
图4本发明较佳实施例的若干用于承载微生物的纤维束悬挂形成滤层示意图。
图5为本发明较佳实施例的纤维短丝或纤维长丝的横截面为圆形或非圆形的结构示意图。
图6为本发明较佳实施例的纤维短丝或纤维长丝的外表面设置有沟槽或孔洞的结构示意图。
图7本发明较佳实施例的纤维短丝或纤维长丝的外表面设置有突起的结构示意图。
附图标记说明：
绕制而成的纤维束：1
绳索：2
绑扎件：3
连接件：4
上支撑件：5
下支撑件：6
绑扎而成的纤维束：7
圆形纤维短丝或纤维长丝：8
椭圆形纤维短丝或纤维长丝：9
腰果形纤维短丝或纤维长丝：10
三角形纤维短丝或纤维长丝：11
五角形纤维短丝或纤维长丝：12
方形纤维短丝或纤维长丝：13
棱形纤维短丝或纤维长丝：14
Y形纤维短丝或纤维长丝：15
沟槽：16
突起：17
梅花形纤维短丝或纤维长丝：18
十字形纤维短丝或纤维长丝：19
米字形纤维短丝或纤维长丝：20
环形纤维短丝或纤维长丝：21
具体实施方式
下面举出较佳实施例，并结合附图来更清楚完整地说明本发明。
实施例1
如图1-7所示，本发明提供了一种用于承载微生物的纤维束。其中，图1所示为用纤维长丝绕制而成的纤维束1，该纤维束用于承载微生物；图2所示为由多段绕制而成的纤维束1通过绳索2连接而成的用于承载微生物的纤维束；图3所示为用纤维长丝通过绑扎件3绑扎而成的纤维束7，该纤维束用于承载微生物。
当然，在实际的使用过程中，所述纤维束由纤维长丝绕制成环状或两端绑扎成束状，或者由纤维短丝或纤维长丝制成的线或绳索或条带绕制成环状或两端绑扎束状。其中，纤维长丝的长度大于纤维束的长度，而纤维短丝的长度小于纤维束的长度。
如图4所示，将若干绕制而成的纤维束1的两端分别通过连接件4悬挂在上支撑件5和下支撑件6上形成滤层。在工作前将某种功能的微生物接种加载到绕制而成的纤维束1上，需要处理的水或空气或其它流体自下而上或自上而下或自左至右通过滤层得到处理。需要充氧曝气时将空气通过设置在滤层下部或中部曝气装置送入滤层。需要清洗时将空气通过设置在滤层下部清洗配气装置送入滤层。
当然，在实际的使用过程中，若干纤维束上端也可以悬挂在支撑物上且下端挂重坠形成滤层；或者若干纤维束下端悬挂在支撑物上且上端挂浮子形成滤层。所述滤层设置在壳体内构成生物滤池或生物过滤器，在所述滤层下部设置曝气装置和清洗配气装置。
同时，在纤维束填料表面加载不同的微生物就成为降解COD的曝气生物滤池、降解氨氮的曝气生物滤池、降解硝酸盐氮的反硝化滤池、降解臭气的除臭滤池、降解其它物质的生物滤池等。
请根据图5-7予以理解，在本实施例中，纤维短丝或纤维长丝为圆形纤维短丝或纤维长丝8，即其横截面为圆形。且纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起。这样可显著提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。且比表面积为表面积与体积之比。
现有技术中横截面为圆形以及外表面为光滑的纤维短丝或纤维长丝所形成的纤维束与本实施例中横截面为圆形以及外表面为粗糙的或设置有沟槽或突起的纤维短丝或纤维长丝所形成的纤维束的效果对比数据如表1所示。
表1 现有纤维束与本实施例纤维束对比
Figure PCTCN2015073280-appb-000001
Figure PCTCN2015073280-appb-000002
从上表可知，本实施例中的纤维束所形成的滤层相比于现有技术中的纤维束所形成的滤层，其比表面积提高了20％-50％，其微生物承载量也提高了20％-50％。
实施例2
请根据图5-7予以理解，本实施例的用于承载微生物的纤维束和实施例1的用于承载微生物的纤维束具有较多相似之处，这些相似之处不再赘述，与实施例1的纤维束不同，纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，即该纤维短丝或纤维长丝为椭圆形纤维短丝或纤维长丝9，或腰果形纤维短丝或纤维长丝10，或三角形纤维短丝或纤维长丝11，或五角形纤维短丝或纤维长丝12，或方形纤维短丝或纤维长丝13，或棱形纤维短丝或纤维长丝14，或Y形纤维短丝或纤维长丝15，或梅花形纤维短丝或纤维长丝18，或十字形纤维短丝或纤维长丝19，或米字形纤维短丝或纤维长丝20，或环形纤维短丝或纤维长丝21。且纤维短丝或纤维长丝的外表面为光滑的。
其中，纤维短丝或纤维长丝的横截面为非圆形，也可显著提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。
现有技术中横截面为圆形以及外表面为光滑的纤维短丝或纤维长丝所形成的纤维束与本实施例中横截面为非圆形(即椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形)以及外表面为光滑的纤维短丝或纤维长丝所形成的纤维束的效果对比数据如表2所示。
表2 现有纤维束与本实施例纤维束对比
Figure PCTCN2015073280-appb-000003
从上表可知，本实施例中的纤维束所形成的滤层相比于现有技术中的纤维束所形成的滤层，其比表面积提高了10％-100％，其微生物承载量提高了20％-50％。
实施例3
请根据图5-7予以理解，本实施例的用于承载微生物的纤维束和实施例1的用于承载微生物的纤维束具有较多相似之处，这些相似之处不再赘述，与实施例1的纤维束不同，所述纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，所述纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽16或突起17。
其中，纤维短丝或纤维长丝的横截面为非圆形以及纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起能够更为显著的提高比表面积，从而提高微生物承载量，同时清洗后可保留更多微生物量。
现有技术中横截面为圆形以及外表面为光滑的纤维短丝或纤维长丝所形成的纤维束与本实施例中横截面为非圆形(即椭圆形或腰果形或三角形或 五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形)以及外表面设置有沟槽或突起的纤维短丝或纤维长丝所形成的纤维束的效果对比数据如表3所示。
表3 现有纤维束与本实施例纤维束对比
Figure PCTCN2015073280-appb-000004
从上表可知，本实施例中的纤维束所形成的滤层相比于现有技术中的纤维束所形成的滤层，其比表面积为现有技术中的2.4-3倍，其微生物承载量提高了80％-124％。
综上所述，本发明提供的一种用于承载微生物的纤维束所构成的滤层具有比表面积大和孔隙率高的特点，微生物单位承载量可达颗粒状滤料的数倍，横截面为非圆形且外表面为粗糙的或设置有沟槽或突起的纤维短丝或纤维长丝形成的纤维束制得的滤层相比于现有技术中的滤层具有较大的比表面积和微生物承载量，从而可显著提高污染物容积负荷和水力负荷。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这些仅是举例说明，在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改。因此，本发明的保护范围由所附权利要求书限定。

Claims (9)

  1. 一种用于承载微生物的纤维束，其特征在于，所述纤维束由纤维长丝绕制成环状或两端绑扎成束状。
  2. 一种用于承载微生物的纤维束，其特征在于，所述纤维束由纤维短丝或纤维长丝制成的线或绳索或条带绕制成环状或两端绑扎束状或编织成布条状。
  3. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维束由两段及两段以上纤维束通过绳索或连接件连接而成。
  4. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维短丝或纤维长丝的横截面为圆形或椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形。
  5. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维短丝或纤维长丝的外表面为光滑的或粗糙的或有沟槽的或有孔洞或有突起的。
  6. 根据权利要求1-5任意一项所述的用于承载微生物的纤维束，其特征在于，若干所述纤维束两端分别悬挂在两个支撑物上形成填料层或滤层；或若干所述纤维束上端悬挂在支撑物上且下端挂重坠形成填料层或滤层；或若干所述纤维束下端悬挂在支撑物上且上端挂浮子形成填料层或滤层。
  7. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维短丝或纤维长丝的横截面为圆形，所述纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起。
  8. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，所述纤维短丝或纤维长丝的外表面为光滑的。
  9. 根据权利要求1或2任意一项所述的用于承载微生物的纤维束，其特征在于，所述纤维短丝或纤维长丝的横截面为椭圆形或腰果形或三角形或五角形或方形或棱形或Y形或梅花形或十字形或米字形或环形，所述纤维短丝或纤维长丝的外表面为粗糙的或设置有沟槽或突起。
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