WO2022021817A1 - 一种条带形海绵体生物填料机构及安装方法 - Google Patents

一种条带形海绵体生物填料机构及安装方法 Download PDF

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Publication number
WO2022021817A1
WO2022021817A1 PCT/CN2021/072985 CN2021072985W WO2022021817A1 WO 2022021817 A1 WO2022021817 A1 WO 2022021817A1 CN 2021072985 W CN2021072985 W CN 2021072985W WO 2022021817 A1 WO2022021817 A1 WO 2022021817A1
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Prior art keywords
sponge
tight
strip
sponge body
brackets
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PCT/CN2021/072985
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English (en)
French (fr)
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包芳芳
蒋经纬
蒋正海
倪丰颖
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浙江海河环境科技有限公司
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Publication of WO2022021817A1 publication Critical patent/WO2022021817A1/zh
Priority to US17/811,864 priority Critical patent/US20220348485A1/en

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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
    • 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
    • C02F3/101—Arranged-type packing, e.g. stacks, arrays
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
    • C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/005—Processes using a programmable logic controller [PLC]
    • C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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

  • the invention belongs to the technical field of sewage treatment devices, and in particular relates to a strip-shaped sponge biological filler mechanism and an installation method.
  • Bio filler is an important part in the biological treatment of sewage and waste gas. It does not have the function of removing pollutants.
  • biological filler generally has a large surface area, which can attach a large number of microorganisms and become a breeding ground for microorganisms.
  • the sponge has the advantages of porosity, high specific surface area, and easy biofilm formation, and is widely used in biological fillers.
  • due to the disadvantage of the existing sponge body has the disadvantage of poor resistance to pulling and pulling, the sponge body becomes smaller and loses its porosity after being compressed.
  • the advantage of high specific surface area is not conducive to the attachment of a large number of microorganisms to the sponge, which affects the performance of biological fillers.
  • the sponge body in order to prevent the sponge body from being compressed, the sponge body is processed into small squares, and the small square sponge body is installed in a sphere formed by connecting two mesh hemispherical hard plastics.
  • the authorization announcement number is CN1167631C.
  • a Chinese invention patent named spherical dish-shaped magnetic biological filler the biological filler adopts the above structure, and the biological filler is also called biological ball or spherical filler, which has the disadvantages of complicated production process and high cost.
  • the spherical fillers are stacked on a mesh support at the bottom in a natural accumulation manner, and a mesh protective layer is installed on the upper part of the stacked spherical packing layer to prevent the spherical fillers from being lost with the water flow.
  • biological sludge is easily deposited in the gap between the spherical filler and the square sponge, which affects the contact absorption of the biofilm attached to the surface of the sponge and the dissolved oxygen in the water.
  • the prior art also discloses a Chinese invention patent with a publication number of CN102701446A and the name is elastic open-cell foam suspension biological filler and its application in sewage treatment, water environment ecological restoration, organic waste gas treatment and deodorization.
  • the biological filler includes at least two strands of twisted ropes, and the two strands of twisted ropes are vertically embedded at the midline during the twisting process to form a divergent slat assembly; surface area of microorganisms.
  • the biological filler is provided with a large number of divergent slat aggregates, the volume of each slat is very small, and there are a large number of gaps between the slats, which affects the installation volume of the slat aggregate, so that the slats can be attached to the slats.
  • the number of microorganisms on the aggregate is small, which affects the performance of the biological filler, and the biological filler requires a large number of slat aggregates to be installed on the two strands of rope, the structure is more complex, the assembly and production are difficult, and the unit space can be placed
  • the biofiller volume is smaller.
  • the volume ratio is simply installed by the natural accumulation of sponges.
  • the pressure resistance of the porous sponge will cause the sponge to be flattened due to the weight of the sponge and the biofilm, and the sponge will lose its porous and high specific surface characteristics. Oxygen flushing and aeration can easily cause sludge deposition and it is difficult for microorganisms in biofilm to obtain enough oxygen.
  • the invention provides a strip-shaped sponge biological filler mechanism and an installation method, and the biological filler has a simple structure. , and the sponge can be well fixed, the advantages of the sponge body can be fully utilized, and the volume of the sponge body that can be installed in a unit space during installation and use is large, and it is not easy to deposit sludge during use.
  • the present invention provides a strip-shaped sponge biological filler mechanism, comprising at least two layers of longitudinally distributed and parallel plane stent groups, wherein the plane stent group includes at least three stents parallel to each other or distributed in a grid shape
  • the brackets between the upper and lower two adjacent plane bracket groups, and between the upper and lower adjacent brackets there are several filler units arranged along the length direction of the brackets, and the filler units include sponges with a strip-type structure
  • the two sides of the sponge body are provided with a tight bandage arranged along the length direction of the sponge body.
  • the sponge body is distributed along the length direction of the fixing pieces for fixing the sponge body; the two ends of the tight band are each fixed with a connecting piece, and the connecting pieces at both ends of the tight band are respectively detachably connected with the two brackets.
  • a sponge with a large-volume strip-type structure is selected as a breeding ground for microorganisms to attach, and the sponge is fixed by setting a tight bandage to cooperate with a fixing piece.
  • the material with small elasticity the sponge body is fixed between two tight bandages by the fixing piece, which can have a good fixing effect on the sponge body, the sponge body bears less pulling force, and the pressure on the sponge body is relatively small. Small, the squeezing effect on the sponge body is small, so that the advantages of the porous body of the sponge body can be retained.
  • the connecting pieces arranged at both ends of the tension band enable the packing unit to be directly and detachably connected to the bracket through the connecting pieces at both ends, which is easy to install, and when the packing unit is installed on the support, the sponge body will not be pulled towards both ends. Can avoid sponge damage.
  • the sponge body is provided with a number of first through holes distributed along the length direction of the sponge body, and the tight bandage is provided with a number of second through holes corresponding to the first through holes one-to-one.
  • the part is a cap nail with a dumbbell-shaped structure, the middle part of the cap nail is sleeved in the first through hole and the second through hole, and the protruding parts of the two ends of the cap nail relative to the middle part are respectively close to the two tight bandages.
  • the outer side; the distance between the adjacent fixing pieces is 20-100cm.
  • the sponge body is fixed by cap nails and tight bandages, which is relatively firm and easy to install.
  • the fixing member is a belt-shaped sewing thread arranged along the length direction of the sponge body, the belt-shaped sewing thread passes through two tight bandages and the sponge body, and the belt-shaped sewing thread is continuous sewing or 20-100cm Pitch segment sewing.
  • the sponge body is directly fixed on the tight bandage by sewing thread, which is more convenient for processing.
  • the tight bandage is made of plastic or nylon or metal material. These materials can meet the performance of tight bandages.
  • the corresponding ends of the two tight bandages are fixedly connected, and the corresponding ends of the two tight bandages are fixedly connected with a connector at the same time.
  • the two ends of the two tight bandages are respectively fixedly connected, and the corresponding ends of the tight bandages are simultaneously fixed on a connecting piece, so that a packing unit can be installed on the bracket with only two connecting pieces.
  • the connecting piece is a hook that can be hooked on the bracket or a binding head whose extension sections at both ends of the tight bandage are directly bound to the bracket.
  • the packing unit can be easily installed on the bracket.
  • the length of the sponge is 150-600cm
  • the width is 5-20cm
  • the thickness is 0.6-3cm
  • the width of the tight bandage is 0.5-3cm.
  • the porous structure of the sponge body can absorb a large number of microorganisms.
  • the sponge body has the largest utilization rate of the sponge body within this size range.
  • the microorganisms attached to the sponge body can be attached to the entire sponge body and attached to the sponge body.
  • the microorganisms can treat the sewage passing through the surface of the sponge.
  • the size of the sponge When the size of the sponge is too large, it is difficult to exchange sewage with the water inside the sponge in time, and the microorganisms attached to the inside of the sponge are extremely inefficient for sewage treatment, thus occupying space but not playing a corresponding role.
  • the size of the sponge body When the size of the sponge body is too small, the volume of the sponge body that can be placed in a unit space is small, and the number of microorganisms attached to the sponge body is also less, so the efficiency of sewage treatment is low.
  • the difference between the width of the tight bandage and the sponge body can not only fix the sponge body well, but also expose the outer surface of the sponge body as much as possible to increase the contact area with the sewage, thereby increasing the adhesion area of microorganisms, thereby improving the sewage treatment. processing power.
  • the distance between adjacent filler units located on the same upper and lower adjacent brackets is 4-15 cm; the distance between two adjacent brackets located in the same planar bracket group is 5-20 cm.
  • sewage can pass through the packing unit smoothly, and more packing units can be placed in the unit space as much as possible.
  • the spacing is too small, it is difficult for the sewage to pass through the space between the adjacent packing units smoothly, which may cause the sludge in the sewage to deposit between the packing units.
  • the width is too large, the number of sponges in the unit space will be small. As a result, the number of microorganisms attached to the sponge is small, and the treatment capacity of sewage is low.
  • the present invention also provides a method for installing a strip-shaped sponge biological filler mechanism, comprising the following steps:
  • a tight bandage is attached to each side of the sponge body of the strip-type structure, so that both ends of the tight bandage are protruded relative to the two ends of the sponge body, and the sponge body is fixed on the two tight bandages by a fixing piece Between, the corresponding ends of the two tight bandages are fixedly connected and fixed on the connecting piece, thereby forming a packing unit;
  • brackets distributed in a rectangular array in the biological contact area of the biological contact oxidation treatment device for wastewater and waste gas treatment so as to form at least two longitudinally distributed and parallel plane bracket groups; Make the distance between two adjacent brackets located in the same plane bracket group 5-20cm; and make the brackets between the adjacent plane bracket groups on the upper and lower layers correspond one-to-one;
  • the fixing member is a cap nail
  • the connecting member is a hook
  • the present invention has the following beneficial effects:
  • the filler of the present invention can directly transport the oxygen in the air or water to the surface of the biofilm seeds for direct gas supply, thereby increasing the supply rate of oxygen and reducing the cost of oxygen supply;
  • the volume ratio of the processing device is greatly improved.
  • the biofilm production and installation method of the present invention has the number of single filler sponges more than 10 times larger than that of spherical sponge fillers.
  • the volume ratio of membrane) can reach 15-45%, which is more than 3 times higher than that of the existing spherical sponge filler and elastic open-cell foam suspension biological filler.
  • Fig. 1 is the structural representation of embodiment 1;
  • Example 2 is a schematic diagram of the connection structure of the sponge body, the tight bandage and the fixing piece in Example 1;
  • 3 is a schematic diagram of the distribution of packing units
  • Fig. 4 is the packing unit structure schematic diagram of embodiment 2;
  • a strip-shaped sponge biofiller mechanism includes at least two layers of longitudinally distributed and parallel plane stent groups, wherein the plane stent groups include For a plurality of brackets 1 parallel to each other, the distance between two adjacent brackets in the same plane bracket group is 5-20 cm. There is a one-to-one correspondence between the brackets 1 between the adjacent plane bracket groups on the upper and lower layers, and a number of filler units 2 arranged along the length direction of the brackets 1 are arranged between the upper and lower adjacent brackets 1, which are located on the same upper and lower adjacent brackets. The spacing between adjacent packing units is 4-15cm.
  • the filler unit 2 includes a sponge body 3 with a strip-type structure, and a tight bandage 4 arranged along the length direction of the sponge body 3 is provided on both sides of the sponge body 3.
  • the length of the sponge body 3 is 150-600 cm, The width is 5-20cm and the thickness is 0.6-3cm.
  • the width of the tight bandage 4 is 0.5-3 cm.
  • the two ends of the tight bandages 4 extend outward relative to the two ends of the sponge body 3 respectively, and between the two tight bandages 4 are multiple fixing members 5 distributed along the length direction of the sponge body 3 for fixing the sponge body 3 .
  • Each end of the tight band 4 is fixedly provided with a connector 6, the connector 6 is a hook, the corresponding ends of the two tight band 4 are fixedly connected, and the corresponding ends of the two tight band 4 are fixedly connected.
  • the parts are fixedly connected with a connecting piece 6 at the same time.
  • the connecting pieces 6 at both ends of the tight band 4 are respectively hooked on the two brackets 1 .
  • the sponge body 3 is provided with a plurality of first through holes 7 distributed along the length direction of the sponge body 3, and the tight band 4 is provided with a plurality of second through holes corresponding to the first through holes 7 one-to-one.
  • the fixing member 5 is a dumbbell-shaped cap nail or a belt-shaped sewing thread 9 arranged along the length direction of the sponge body 3 .
  • the material of the tightening band 4 is made of sheet metal, the middle part of the cap nail is sleeved in the first through hole 7 and the second through hole 8, and the two ends of the cap nail are opposite to the middle
  • the part of the raised part is in close contact with the outer sides of the two tight bandages 4 respectively; the distance between the adjacent fixing pieces 5 is 20-100 cm.
  • the fixing member 5 adopts the band-shaped sewing thread 9 the nylon material is selected as the tight bandage 4, the band-shaped sewing thread 9 passes through the two tight bandages 4 and the sponge body 3, and the band-shaped sewing thread 9 is continuous sewing or Sewing in sections at 20-100cm intervals.
  • the sponge body 3 and the tightening band 4 are directly sewn together with a belt-shaped sewing thread, which is more convenient for processing.
  • the present invention also provides a method for installing a strip-shaped sponge biological filler mechanism, comprising the following steps:
  • brackets 1 Fixed installation of brackets 1 distributed in a rectangular array in the biological contact area of the biological contact oxidation treatment device for wastewater and waste gas treatment, so as to form at least two longitudinally distributed and parallel plane bracket groups; At the same time, the distance between two adjacent brackets 1 in the same plane bracket group is 5-20cm; and the brackets 1 between the upper and lower two adjacent plane bracket groups are in one-to-one correspondence;
  • the applicant has carried out two batches of corresponding tests.
  • the first batch of tests is divided into four test groups.
  • the other three groups are control group 1, control group 2, and control group 3 respectively.
  • the sponge body 3 is made of polyurethane foam material.
  • the control group 1 uses spherical sponge filler
  • the control group 2 uses elastic open-cell foam.
  • Suspended biological fillers, and control group 3 used ordinary elastic fillers, which were installed in four biological contact oxidation wastewater treatment systems, and also treated organic COD in dairy processing wastewater.
  • the technical parameters of fillers, the speed of biofilm hanging, and the removal effect of organic COD are compared and analyzed.
  • the specific parameters and pollution treatment effects are shown in Table 1:
  • Table 1 The first batch of test sponge filler parameters and pollution treatment effect comparison table
  • the second batch of tests is divided into three test groups.
  • the first group is operated by using the technical solution of this embodiment, which is the test group 2.
  • the other two groups are respectively the control group 4 and the control group 5, and the cavernous body 3 of the first group.
  • Polyurethane foam material is used, among which, the control group 4 uses spherical sponge filler, and the control group 5 uses ordinary elastic filler, which are respectively installed in three biological contact oxidation method to treat the odorous waste gas of domestic sewage anoxic tank, and also treat dairy processing sewage.
  • Medium organic COD The technical parameters of packing, the speed of biofilm hanging, and the removal effect of organic COD are compared and analyzed. The specific parameters and pollution treatment effects are shown in Table 2:
  • Table 2 The second batch of test sponge filler parameters and pollution treatment effect comparison table

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  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

一种条带形海绵体生物填料机构，包括至少两层呈纵向分布的且互相平行的平面式支架群，平面式支架群包括至少三根互相平行的支架（1），上下相邻的支架（1）之间设有填料单元（2），填料单元（2）包括条带型结构的海绵体（3），海绵体（3）两侧各设有一根紧绷带（4），两根紧绷带（4）之间设有若干固定件（5），紧绷带（4）两端各固定设有一个连接件（6），紧绷带（4）两端的连接件（6）分别与两根支架（1）可拆卸连接。

Description

一种条带形海绵体生物填料机构及安装方法 技术领域
本发明属于污水处理装置技术领域，具体涉及一种条带形海绵体生物填料机构及安装方法。
背景技术
生物填料是污水和废气的生物处理工程中的重要部件，其本身并无去除污染物的功能，但是生物填料一般具有较大的表面积，可以附着大量微生物，成为微生物的温床。海绵体具有多孔、高比表面积、易生物挂膜的优点，广泛应用于生物填料中，但由于现有海绵体存在承受扯拉牢固性差的缺点，在受压后海绵体空隙变小失去多孔、高比表面积的优点，不利于海绵体上附着大量微生物，影响生物填料的性能。现有技术中为了避免海绵体受压，采用将海绵体加工成小方块，把小方块海绵体安装在由两个网状半球型硬质塑料连接而成的球体内，如授权公告号为CN1167631C，名称为球碟形磁性生物填料的中国发明专利，该生物填料就是采用上述结构，该生物填料又称为生物球或球型填料，存在制作工艺复杂、成本高等缺点，球型填料安装采用将球型填料以自然堆积的方式堆放底部为网状支架上，堆积球型填料层上部安装网状保护层，防止球型填料随水流流失。在使用时，生物污泥易在球型填料内与方块海绵体的间隙中沉积，影响附着在海绵体表面的生物膜与水中溶解氧的接触吸收。
为了解决上述问题，现有技术中还公开了公开号为CN102701446A，名称为弹性开孔泡沫悬挂生物填料及在污水处理、水环境生态修复、有机废气处理及脱臭中的应用的中国发明专利，该生物填料包括至少两股拈绳，两股拈绳在拈合过程中以中线部位垂直嵌入后呈发散状的板条集合体；所述板条集合体中的每一板条均须具有承载大量微生物的表面积。该生物填料设置了大量呈发散状的板条集合体，每一条板条的体积都十分小，且板条之间存在大量缝隙，影响板条集合体的安装体积，从而使能附着在板条集合体上的微生物数量较少，影响生物填料的性能，且该生物填料需要大量的板条集合体安装在两股拈绳上，结构较为复杂，组装生产难度较大，且单位空间内能安放的生物填料体积较小。
但如果为提高填料数量，体积占比单纯采用海绵自然堆积方式安装，多孔海 绵的不耐压性会因海绵及生物膜自身重量把海绵压扁失去多孔、高比表面特性，同时海绵不易搅动、冲氧曝气，易造成污泥沉积、生物膜中的微生物难以获得足够的氧气。
发明内容
本发明针对现有技术中生物填料结构复杂、容易沉积淤泥、单位空间内能安放的生物填料体积较小的弊端，提供一种条带形海绵体生物填料机构及安装方法，该生物填料结构简单，且能对海绵进行良好的固定，能够充分利用海绵体的优点，且安装使用时单位空间内能够安装的海绵体体积较大，使用时不易沉积淤泥。
本发明提供一种条带形海绵体生物填料机构，包括至少两层呈纵向分布的且互相平行的平面式支架群，所述平面式支架群包括至少三根互相平行或者呈网格形分布的支架，上下两层相邻的平面式支架群之间的支架一一对应，上下相邻的支架之间设有若干沿着支架长度方向设置的填料单元，所述填料单元包括条带型结构的海绵体，海绵体两侧各设有一根沿着海绵体长度方向设置的紧绷带，紧绷带两端分别相对于海绵体两端向外延伸，两根紧绷带之间设有若干沿着海绵体长度方向分布用于固定海绵体的固定件；紧绷带两端各固定设有一个连接件，紧绷带两端的连接件分别与两根支架可拆卸连接。
在该生物填料机构中，选用大体积的条带型结构的海绵体作为微生物附着的温床，并通过设置紧绷带配合固定件对海绵体进行固定，紧绷带选用牢固不易老化、力及温差伸缩性小的材料，海绵体通过固定件固定在两根紧绷带之间，能够对海绵体起到良好的固定效果，海绵体所承受的扯拉力较小，且对海绵体产生的压力较小，对海绵体的挤压作用较小，从而能够保留海绵体多孔等优点。紧绷带两端设置的连接件使该填料单元可通过两端的连接件直接与支架可拆卸连接，安装较为简便，且填料单元安装在支架上时，海绵体不会受到朝向两端的拉扯力，能避免海绵体破损。同时在海绵体周边无静态的污泥沉积空间，不会产生污泥海绵体周边沉积，解决了生化污泥易在球型填料内与方块海绵体的间隙中沉积。
作为优选,所述海绵体上设有若干沿着海绵体长度方向分布的第一通孔，所述紧绷带上设有若干与第一通孔一一对应的第二通孔，所述固定件为哑铃状结构的帽钉，帽钉的中间部分套设在第一通孔、第二通孔内，帽钉两端相对于中间部 分凸起的部分分别紧贴在两个紧绷带的外侧面；相邻所述固定件之间的距离为20-100cm。通过帽钉配合紧绷带对海绵体进行固定，较为牢固，且安装十分方便。
作为优选,所述固定件为沿着海绵体长度方向设置的带状缝纫线，带状缝纫线穿过两根紧绷带以及海绵体，所述带状缝纫线为连续缝纫或者按20-100cm间距分段缝纫。直接采用缝纫线将海绵体固定在紧绷带上，加工更为方便。
作为优选,所述紧绷带采用塑料或尼龙或金属材料制成。这几种材料能够满足紧绷带的使用性能。
作为优选,两根所述紧绷带的对应端部之间固定连接，且两根紧绷带的对应端部之间同时与一个连接件固定连接。两根紧绷带的两端分别固定连接，且紧绷带对应的端部之间同时固定在一个连接件上，这样设置使一个填料单元只需两个连接件即可安装在支架上。
作为优选,所述连接件为能钩挂在支架上的挂钩或紧绷带两端延伸段直接绑定在支架上的绑结头。这样设置可以使填料单元能够很简便的安装在支架上。
作为优选,所述海绵体的长度为150-600cm，宽度为5-20cm，厚度为0.6-3cm，所述紧绷带的宽度为0.5-3cm。海绵体的多孔结构，能够吸附大量的微生物，海绵体在该尺寸大小范围内，对海绵体的利用率最大，附着在海绵体上的微生物能附着在整个海绵体上，且附着在海绵体上的微生物能对经过海绵体表面的污水进行处理。当海绵体的尺寸过大时，污水难以与海绵体内部的水及时交换，附着在海绵体内部的微生物对污水处理的效率极低，从而占用了空间，却不能起到相应的作用。当海绵体的尺寸过小时，单位空间内所能安放的海绵体的体积较小，附着在海绵体上的微生物数量也就较少，从而对污水处理的效率较低。紧绷带和海绵体的宽度差，既能对海绵体进行良好的固定，且能尽量使海绵体的外表面露出，提升与污水的接触面积，从而能增加微生物的附着面积，进而提升对污水处理能力。
作为优选,位于同一上下相邻的支架上的相邻所述填料单元之间的间距为4-15cm；位于同一平面式支架群中相邻的两根支架之间的距离为5-20cm。在该间距范围内，污水能够顺利经过填料单元，且能在单位空间内尽可能的安放更多的填料单元。当间距过小时，污水难以顺利经过相邻填料单元之间的空间，可能会导致污水中的淤泥沉积在填料单元之间，当宽度过大时，会导致单位空间内的 海绵体数量较小，从而附着在海绵体上的微生物数量较少，对污水的处理能力较低。
本发明还提供一种条带形海绵体生物填料机构的安装方法，包括以下步骤：
a、在条带型结构的海绵体两侧各紧贴一根紧绷带，使紧绷带两端分别相对于海绵体两端凸出，使用固定件将海绵体固定在两根紧绷带之间，将两根紧绷带的对应端部之间固定连接并固定在连接件上，从而形成一个填料单元；
b、在生物接触氧化处理装置中的生物接触法处理废水、废气的生物接触区内固定安装呈矩形阵列分布的支架，以形成至少两层呈纵向分布的且互相平行的平面式支架群；同时使位于同一平面式支架群中相邻的两根支架之间的距离为5-20cm；并使上下两层相邻的平面式支架群之间的支架一一对应；
c、将填料单元以竖向从上到下以紧绷方式通过两个连接件分别通过钩挂或者捆绑的方式安装在上下相邻的支架上，在上下相邻的支架之间都采用相同方式沿着支架长度方向安装多个填料单元，使所有填料单元呈矩形阵列分布，控制位于同一上下相邻的支架上的相邻所述填料单元之间的间距为4-15cm。
作为优选，所述固定件为帽钉，所述连接件为挂钩。
与现有技术相比，本发明具有以下有益效果：
(1)解决了污泥沉积问题。与现有硬质网状塑料球固定海绵体方法相比，因为该结构海绵体生物膜直接与污水或周边空气接触不存在不流动的区域，在海绵体周边无静态的污泥沉积空间，不会产生污泥海绵体周边沉积，解决了生化污泥易在球型填料内与方块海绵体的间隙中沉积；
(2)解决了溶解氧的接触吸收问题。本发明的填料可直接把空气或水中的氧输送到生物膜箘种表面，进行直接供气，提高氧的供给率，降低供氧成本；
(3)大幅度提高处理装置容积比。生物膜本发明的制作与安装方法具有单根填料海绵体数量比球型海绵填料大数10倍以上，本发明的填料组合运行挂膜后生物膜(含海绵体及生物膜外侧1cm厚的生物膜)容积比可达15-45％，比现有球型海绵填料及弹性开孔泡沫悬挂生物填料相比生物膜区域与污水处理好氧接触区区域容积比提高3倍以上；
(4)加工成本成本低廉，安装方便，按每立方米填料成本计算节约制作及安装成本30％以上，解决了现有技术方法高成本难以大幅度普及使用问题。
附图说明
图1为实施例1结构示意图；
图2为实施例1海绵体、紧绷带、固定件连接结构示意图；
图3为填料单元分布示意图；
图4为实施例2的填料单元结构示意图；
图中标记：1、支架，2、填料单元，3、海绵体，4、紧绷带，5、固定件，6、连接件，7、第一通孔，8、第二通孔，9、带状缝纫线。
具体实施方式
下面结合附图所表示的实施例对本发明作进一步描述：
实施例1
如图1、图2、图3、图4所示，一种条带形海绵体生物填料机构，包括至少两层呈纵向分布的且互相平行的平面式支架群，所述平面式支架群包括多根互相平行的支架1，位于同一平面式支架群中相邻的两根支架之间的距离为5-20cm。上下两层相邻的平面式支架群之间的支架1一一对应，上下相邻的支架1之间设有若干沿着支架1长度方向设置的填料单元2，位于同一上下相邻的支架上的相邻所述填料单元之间的间距为4-15cm。所述填料单元2包括条带型结构的海绵体3，海绵体3两侧各设有一根沿着海绵体3长度方向设置的紧绷带4，所述海绵体3的长度为150-600cm，宽度为5-20cm，厚度为0.6-3cm。所述紧绷带4的宽度为0.5-3cm。所述紧绷带4两端分别相对于海绵体3两端向外延伸，两根紧绷带4之间设有多个沿着海绵体3长度方向分布用于固定海绵体3的固定件5。紧绷带4两端各固定设有一个连接件6，所述连接件6为挂钩，两根所述紧绷带4的对应端部之间固定连接，且两根紧绷带4的对应端部之间同时与一个连接件6固定连接。紧绷带4两端的连接件6分别钩挂在两根支架1上。所述海绵体3上设有多个沿着海绵体3长度方向分布的第一通孔7，所述紧绷带4上设有多个与第一通孔7一一对应的第二通孔8，所述固定件5为哑铃状结构的帽钉或者为沿着海绵体3长度方向设置的带状缝纫线9。当固定件5采用帽钉时，所述紧绷带4的材质选用片状金属，帽钉的中间部分套设在第一通孔7、第二通孔8内，帽钉两端相对于中间部分凸起的部分分别紧贴在两个紧绷带4的外侧面；相邻所述固定件5之间的距离为20-100cm。当固定件5采用带状缝纫线9时， 选用尼龙材料的紧绷带4，带状缝纫线9穿过两根紧绷带4以及海绵体3，所述带状缝纫线9为连续缝纫或者按20-100cm间距分段缝纫。直接采用带状缝纫线将海绵体3与紧绷带4缝纫在一起，加工更为方便。
本发明还提供一种条带形海绵体生物填料机构的安装方法，包括以下步骤：
a、在条带型结构的海绵体3两侧各紧贴一根紧绷带4，使紧绷带4两端分别相对于海绵体3两端凸出，使用固定件5将海绵体3固定在两根紧绷带4之间，将两根紧绷带4的对应端部之间固定连接并固定在连接件6上，从而形成一个填料单元2；
b、在生物接触氧化处理装置中的生物接触法处理废水、废气的生物接触区内固定安装呈矩形阵列分布的支架1，以形成至少两层呈纵向分布的且互相平行的平面式支架群；同时使位于同一平面式支架群中相邻的两根支架1之间的距离为5-20cm；并使上下两层相邻的平面式支架群之间的支架1一一对应；
c、将填料单元2以竖向从上到下以紧绷方式通过两个连接件6分别通过钩挂或者捆绑的方式安装在上下相邻的支架1上，在上下相邻的支架1之间都采用相同方式沿着支架1长度方向安装多个填料单元2，使所有填料单元2呈矩形阵列分布，控制位于同一上下相邻的支架上的相邻所述填料单元之间的间距为4-15cm。
为进一步探究本发明的效果，申请人进行了两个批次的相应试验，第一批次试验分为四个试验组，第一组为采用本实施例技术方案进行操作，为试验组1，另外三组分别为对照组1、对照组2、对照组3，本实施例中的海绵体3采用聚氨酯发泡材料，其中，对照组1采用球性海绵填料，对照组2采用弹性开孔泡沫悬挂生物填料，对照组3采用普通弹性填料，分别安装在四个生物接触氧化法处理污水的系统中，同样处理乳品加工污水中有机物COD。在填料技术参数、生物膜挂膜速度、有机物COD去除效果等方面进行比较分析，具体设置参数以及污染处理效果如表1所示：
表1第一批次试验海绵填料参数及污染处理效果比较表
Figure PCTCN2021072985-appb-000001
Figure PCTCN2021072985-appb-000002
由表1可见，试验组1相对于对照组1、对照组2、对照组3，正常运行生物接触氧化处理能力存在显著区别，试验组1中7天平均污水处理量最高，为 8.90m 3，COD去除负荷最高，为5.28kg/m 3.d，由此可见，试验组1的污染处理效果最佳，与采用现有技术的对照组1、对照组2、对照组3相比，其效果得到了显著的提升。
第二批次试验分为三个试验组，第一组为采用本实施例技术方案进行操作，为试验组2，另外两组分别为对照组4、对照组5，第一组的海绵体3采用聚氨酯发泡材料，其中，对照组4采用球性海绵填料，对照组5普通弹性填料，分别安装在三个生物接触氧化法处理生活污水缺氧池恶臭废气的系统中，同样处理乳品加工污水中有机物COD。在填料技术参数、生物膜挂膜速度、有机物COD去除效果等方面进行比较分析，具体设置参数以及污染处理效果如表2所示：
表2第二批次试验海绵填料参数及污染处理效果比较表
Figure PCTCN2021072985-appb-000003
Figure PCTCN2021072985-appb-000004
Figure PCTCN2021072985-appb-000005
由表2可见，试验组2相对于对照组5、对照组6，正常运行生物接触氧化处理能力存在显著区别，试验组2正常运行生物接触氧化处理能力，7天平均恶臭指标排放量中：氨、硫化氢的排放量最低，甲硫醇的排放量也较低，相对于对照组5区别不大，臭气浓度512也最低，从污染处理效果看，第二批次试验中，试验组2的污染处理效果最佳。与采用现有技术的对照组5、对照组6相比，其 效果得到了显著的提升。
文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。

Claims (9)

  1. 一种条带形海绵体生物填料机构，其特征在于，包括至少两层呈纵向分布的且互相平行的平面式支架群，所述平面式支架群包括至少三根互相平行或者呈网格形分布的支架(1)，上下两层相邻的平面式支架群之间的支架(1)一一对应，上下相邻的支架(1)之间设有若干沿着支架(1)长度方向设置的填料单元(2)，所述填料单元(2)包括条带型结构的海绵体(3)，海绵体(3)两侧各设有一根沿着海绵体(3)长度方向设置的紧绷带(4)，紧绷带(4)两端分别相对于海绵体(3)两端向外延伸，两根紧绷带(4)之间设有若干沿着海绵体(3)长度方向分布用于固定海绵体(3)的固定件(5)；紧绷带(4)两端各固定设有一个连接件(6)，紧绷带(4)两端的连接件(6)分别与两根支架(1)可拆卸连接。
  2. 根据权利要求1所述的一种条带形海绵体生物填料机构，其特征在于,所述海绵体(3)上设有若干沿着海绵体(3)长度方向分布的第一通孔(7)，所述紧绷带(4)上设有若干与第一通孔(7)一一对应的第二通孔(8)，所述固定件(5)为哑铃状结构的帽钉，帽钉的中间部分套设在第一通孔(7)、第二通孔(8)内，帽钉两端相对于中间部分凸起的部分分别紧贴在两个紧绷带(4)的外侧面；相邻所述固定件(5)之间的距离为20-100cm。
  3. 根据权利要求1所述的一种条带形海绵体生物填料机构，其特征在于,所述固定件(5)为沿着海绵体(3)长度方向设置的带状缝纫线(9)，带状缝纫线(9)穿过两根紧绷带(4)以及海绵体(3)，所述带状缝纫线(9)为连续缝纫或者按20-100cm间距分段缝纫。
  4. 根据权利要求1所述的一种条带形海绵体生物填料机构，其特征在于,所述紧绷带(4)采用塑料或尼龙或金属材料制成。
  5. 根据权利要求1所述的一种条带形海绵体生物填料机构，其特征在于,两根所述紧绷带(4)的对应端部之间固定连接，且两根紧绷带(4)的对应端部之间同时与一个连接件(6)固定连接。
  6. 根据权利要求5所述的一种条带形海绵体生物填料机构，其特征在于,所述连接件(6)为能够挂在支架(1)上的挂钩或紧绷带(4)两端延伸段直接绑定在支架上的绑结头。
  7. 根据权利要求1所述的一种条带形海绵体生物填料机构，其特征在于,所述海绵体(3)的长度为150-600cm，宽度为5-20cm，厚度为0.6-3cm，所述紧绷 带(4)的宽度为0.5-3cm。
  8. 根据权利要求3所述的一种条带形海绵体生物填料机构，其特征在于,位于同一上下相邻的支架(1)上的相邻所述填料单元(2)之间的间距为4-15cm；位于同一平面式支架群中相邻的两根支架(1)之间的距离为5-20cm。
  9. 一种条带形海绵体生物填料机构的安装方法，其特征在于，包括以下步骤：
    a、在条带型结构的海绵体(3)两侧各紧贴一根紧绷带(4)，使紧绷带(4)两端分别相对于海绵体(3)两端凸出，使用固定件(5)将海绵体(3)固定在两根紧绷带(4)之间，将两根紧绷带(4)的对应端部之间固定连接并固定在连接件(6)上，从而形成一个填料单元(2)；
    b、在生物接触氧化处理装置中的生物接触法处理废水、废气的生物接触区内固定安装呈矩形阵列分布的支架(1)，以形成至少两层呈纵向分布的且互相平行的平面式支架群；同时使位于同一平面式支架群中相邻的两根支架(1)之间的距离为5-20cm；并使上下两层相邻的平面式支架群之间的支架(1)一一对应；
    c、将填料单元(2)以竖向从上到下以紧绷方式通过两个连接件(6)分别通过钩挂或者捆绑的方式安装在上下相邻的支架(1)上，在上下相邻的支架(1)之间都采用相同方式沿着支架(1)长度方向安装多个填料单元(2)，使所有填料单元(2)呈矩形阵列分布，控制位于同一上下相邻的支架上的相邻所述填料单元(2)之间的间距为4-15cm。
PCT/CN2021/072985 2020-07-31 2021-01-21 一种条带形海绵体生物填料机构及安装方法 WO2022021817A1 (zh)

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