JP5492299B2 - Microbial carrier and method for producing the same - Google Patents

Microbial carrier and method for producing the same Download PDF

Info

Publication number
JP5492299B2
JP5492299B2 JP2012521177A JP2012521177A JP5492299B2 JP 5492299 B2 JP5492299 B2 JP 5492299B2 JP 2012521177 A JP2012521177 A JP 2012521177A JP 2012521177 A JP2012521177 A JP 2012521177A JP 5492299 B2 JP5492299 B2 JP 5492299B2
Authority
JP
Japan
Prior art keywords
die
resin material
microbial carrier
foaming agent
foamed resin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2012521177A
Other languages
Japanese (ja)
Other versions
JPWO2011161736A1 (en
Inventor
明 山岸
俊幸 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fukuvi Chemical Industry Co Ltd
Original Assignee
Fukuvi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fukuvi Chemical Industry Co Ltd filed Critical Fukuvi Chemical Industry Co Ltd
Priority to JP2012521177A priority Critical patent/JP5492299B2/en
Publication of JPWO2011161736A1 publication Critical patent/JPWO2011161736A1/en
Application granted granted Critical
Publication of JP5492299B2 publication Critical patent/JP5492299B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
    • C12N11/08—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer
    • C12N11/082—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a synthetic polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
    • B29K2025/04—Polymers of styrene
    • B29K2025/06—PS, i.e. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2016/00—Articles with corrugations or pleats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/18—Pleated or corrugated hoses
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Manufacturing & Machinery (AREA)
  • Zoology (AREA)
  • Microbiology (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Biological Treatment Of Waste Water (AREA)

Description

本発明は、微生物担体の改良、更に詳しくは、簡素な工程で製造することが可能で、かつ、多数の微生物が付着可能な表面積の大きい微生物担体およびその製造方法に関するものである。   The present invention relates to an improvement of a microorganism carrier, and more particularly to a microorganism carrier having a large surface area that can be produced by a simple process and to which a large number of microorganisms can adhere, and a method for producing the same.

周知のとおり、汚水処理装置においては、微生物の分解作用による生化学反応が利用されており、処理槽内に微生物を担持させた小片を投入して曝気操作により流動させる構成になっている。   As is well known, the sewage treatment apparatus uses a biochemical reaction due to the decomposition action of microorganisms, and has a configuration in which small pieces carrying microorganisms are put into a treatment tank and flowed by an aeration operation.

従来、かかる微生物を担体としては、プラスチック材料をパイプ状に押出成形して、所定の長さに適宜切断して作製したものが開示されている（例えば、特許文献１参照）。   Conventionally, a microorganism produced by extruding a plastic material into a pipe shape and appropriately cutting it into a predetermined length has been disclosed as such a microorganism (see, for example, Patent Document 1).

しかしながら、かかる担体にあっては、筒状体の外周面に形成された突起の間隔が大きく、かつ、長手方向に凸条として長手方向に連続的に成形されているため、十分な表面積が確保できず、担体１個あたりの微生物の付着数が少ないという問題があった。   However, in such a carrier, since the interval between the protrusions formed on the outer peripheral surface of the cylindrical body is large and is continuously formed in the longitudinal direction as ridges in the longitudinal direction, a sufficient surface area is secured. There was a problem that the number of microorganisms attached per carrier was small.

特開２００３−１１７５７７号公報（第２−４頁、図１−３）Japanese Patent Laid-Open No. 2003-117577 (page 2-4, FIG. 1-3)

本発明は、従来の微生物担体に上記のような問題があったことに鑑みて為されたものであり、その目的とするところは、簡素な工程で、多数の微生物が付着可能な表面積の大きい微生物担体およびそれを合理的に製造することができる方法を提供することにある。   The present invention has been made in view of the above-mentioned problems with conventional microbial carriers, and the object of the present invention is to provide a large surface area to which many microorganisms can adhere in a simple process. It is to provide a microbial carrier and a method by which it can be reasonably produced.

本発明者が上記技術的課題を解決するために採用した手段を、添付図面を参照して説明すれば、次のとおりである。   Means employed by the present inventor for solving the above technical problem will be described with reference to the accompanying drawings.

即ち、本発明は、熱可塑性樹脂材料と発泡剤とを混合して発泡樹脂材料Ｐを調製する一方、
押出成形機Ｍのダイ１の断面形状は、中央の軸部11の縁部に複数の突起12・12…を形成すると共に、
この押出成形機Ｍの押出スクリューＳを一定速度で回転せしめる一方、
前記ダイ１の内部において、発泡樹脂材料Ｐを突起12内の頭頂部12ａの周面に擦過させながら送出すると共に、発泡剤により発泡樹脂材料Ｐの粘度を下げることにより、このダイ１の外側に押し出されてきた発泡樹脂材料Ｐの軸部11表面と突起12の基端部12ｂとの境界近傍における流速に対して、当該突起12の頭頂部12ａにおける流速を相対的に小さくして、
こうして生じた流速差により頭頂部12ａ近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形し、
然る後、長手状に押し出された成形品を所定長さに切断するという技術的手段を採用したことによって、微生物担体の製造方法を完成させた。That is, the present invention prepares a foamed resin material P by mixing a thermoplastic resin material and a foaming agent,
The cross-sectional shape of the die 1 of the extruder M is formed with a plurality of protrusions 12, 12... At the edge of the central shaft portion 11.
While rotating the extrusion screw S of the extruder M at a constant speed,
Inside the die 1, the foamed resin material P is sent out while being rubbed against the peripheral surface of the crown 12 a in the protrusion 12, and the viscosity of the foamed resin material P is lowered by a foaming agent, so that the outside of the die 1 is brought out. Relative to the flow velocity in the vicinity of the boundary between the surface of the shaft portion 11 of the extruded foamed resin material P and the base end portion 12b of the protrusion 12, the flow velocity at the top portion 12a of the protrusion 12 is relatively reduced,
The resin near the top 12a is divided by the flow rate difference thus generated, and the resin is agglomerated by bursting the bubbles in the resin formed by the foaming agent. Forming regular irregularities,
Thereafter, the method for producing a microbial carrier was completed by employing a technical means of cutting a molded product extruded in a longitudinal shape into a predetermined length.

また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、押出成形機Ｍのダイ１の断面形状を、中央の軸部11の縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12を、頭頂部12ａから基端部12ｂに向けて末広がりのテーパ状に成形するという技術的手段を採用することができる。   Further, in order to solve the above-described problems, the present invention is configured so that the cross-sectional shape of the die 1 of the extrusion molding machine M is changed to a plurality of protrusions 12 and 12 at the edge of the central shaft portion 11 in addition to the above-described means. .. Can be formed in parallel, and each of the protrusions 12 can be formed into a taper shape that widens toward the base end 12b from the top 12a.

また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、押出成形機Ｍのダイ１の断面形状を、中央の軸部11の縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12の基端部12ｂを連続的に隣接させるという技術的手段を採用することができる。   Further, in order to solve the above-described problems, the present invention is configured so that the cross-sectional shape of the die 1 of the extrusion molding machine M is changed to a plurality of protrusions 12 and 12 at the edge of the central shaft portion 11 in addition to the above-described means. ... can be formed in parallel, and a technical means can be employed in which the base end portions 12b of the protrusions 12 are continuously adjacent to each other.

また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ダイ１の中央の軸部11の外側周縁に複数の突起12・12…を成形するという技術的手段を採用することができる。   Further, in order to solve the above-described problems, the present invention provides technical means for forming a plurality of protrusions 12, 12... On the outer peripheral edge of the central shaft portion 11 of the die 1 in addition to the above means as necessary. Can be adopted.

また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、ダイ１の軸部11を対称的な中空筒状または柱状にするという技術的手段を採用することができる。   Further, in order to solve the above-described problems, the present invention can employ technical means in which the shaft portion 11 of the die 1 is formed into a symmetric hollow cylindrical shape or a column shape in addition to the above-described means as necessary. .

更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、熱可塑性樹脂材料と発泡剤との混合比率を、１００重量部：０．１〜１０重量部にするという技術的手段を採用することができる。   Furthermore, in order to solve the above-described problems, the present invention sets the mixing ratio of the thermoplastic resin material and the foaming agent to 100 parts by weight: 0.1 to 10 parts by weight in addition to the above means as necessary. Technical means can be adopted.

更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、発泡樹脂材料Ｐに比重調整のための充填材を混合して、かつ、熱可塑性樹脂材料と充填材との混合比率を、１００重量部：８０重量部以下にするという技術的手段を採用することができる。   Furthermore, in order to solve the above-mentioned problems, the present invention mixes the foamed resin material P with a filler for adjusting the specific gravity in addition to the above-described means as necessary, and further comprises the thermoplastic resin material and the filler. The technical means that the mixing ratio is 100 parts by weight: 80 parts by weight or less can be employed.

また、本発明は、熱可塑性樹脂材料と発泡剤とを混合して発泡樹脂材料Ｐを調製する一方、
押出成形機Ｍのダイ１の断面形状は、中央の軸部11の縁部に複数の突起12・12…を形成すると共に、
この押出成形機Ｍの押出スクリューＳを一定速度で回転せしめる一方、
前記ダイ１の内部において、発泡樹脂材料Ｐを突起12内の頭頂部12ａの周面に擦過させながら送出すると共に、発泡剤により発泡樹脂材料Ｐの粘度を下げることにより、このダイ１の外側に押し出されてきた発泡樹脂材料Ｐの軸部11の表面と突起12の基端部12ｂとの境界近傍における流速に対して、当該突起12の頭頂部12ａにおける流速を相対的に小さくして、
こうして生じた流速差により頭頂部12ａ近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形し、
長手状に押し出された成形品を所定長さに切断するという技術的手段を採用したことによって、微生物担体を完成させた。In the present invention, while the thermoplastic resin material and the foaming agent are mixed to prepare the foamed resin material P,
The cross-sectional shape of the die 1 of the extruder M is formed with a plurality of protrusions 12, 12... At the edge of the central shaft portion 11.
While rotating the extrusion screw S of the extruder M at a constant speed,
Inside the die 1, the foamed resin material P is sent out while being rubbed against the peripheral surface of the crown 12 a in the protrusion 12, and the viscosity of the foamed resin material P is lowered by a foaming agent, so that the outside of the die 1 is brought out. Relative to the flow velocity in the vicinity of the boundary between the surface of the shaft portion 11 of the extruded foamed resin material P and the base end portion 12b of the protrusion 12, the flow velocity at the top 12a of the protrusion 12 is made relatively small,
The resin near the top 12a is divided by the flow rate difference thus generated, and the resin is agglomerated by bursting the bubbles in the resin formed by the foaming agent. Forming regular irregularities,
The microbial carrier was completed by adopting the technical means of cutting the molded product extruded in a longitudinal shape into a predetermined length.

また、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、押出成形機Ｍのダイ１の断面形状を、中央の軸部11の縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12を、頭頂部12ａから基端部12ｂに向けて末広がりのテーパ状に成形して、形成するという技術的手段を採用することができる。   Further, in order to solve the above-described problems, the present invention is configured so that the cross-sectional shape of the die 1 of the extrusion molding machine M is changed to a plurality of protrusions 12 and 12 at the edge of the central shaft portion 11 in addition to the above-described means. .. Can be formed in parallel, and each of the protrusions 12 can be formed by forming the protrusion 12 into a tapered shape extending from the top 12a toward the base end 12b.

更にまた、本発明は、上記課題を解決するために、必要に応じて上記手段に加え、押出成形機Ｍのダイ１の断面形状を、中央の軸部11の縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12の基端部12ｂを連続的に隣接させて、形成するという技術的手段を採用することができる。   Furthermore, in order to solve the above-described problems, the present invention is configured so that the cross-sectional shape of the die 1 of the extrusion molding machine M is changed to a plurality of protrusions 12. Technical means can be employed in which 12 ... are formed in parallel and the base end portions 12b of the protrusions 12 are continuously adjacent to each other.

本発明にあっては、この押出成形機の押出スクリューを一定速度で回転せしめる一方、
ダイの内部において、発泡樹脂材料を突起内の頭頂部の周面に擦過させながら送出すると共に、発泡剤により発泡樹脂材料の粘度を下げることにより、このダイの外側に押し出されてきた発泡樹脂材料の軸部表面と突起の基端部との境界近傍における流速に対して、当該突起の頭頂部における流速を相対的に小さくしたことによって、
こうして生じた流速差により頭頂部近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形することによって、微生物の付着性に優れた担体を製造することができる。In the present invention, while rotating the extrusion screw of this extruder at a constant speed,
Inside the die, the foamed resin material is fed out while rubbing the foamed resin material on the peripheral surface of the top of the projection, and the foamed resin material has been pushed out of the die by lowering the viscosity of the foamed resin material with a foaming agent. By reducing the flow velocity at the top of the protrusion relative to the flow velocity near the boundary between the shaft surface of the protrusion and the base end of the protrusion,
The resin near the top is divided by the flow velocity difference generated in this way, and the resin is agglomerated by bursting the bubbles in the resin formed by the foaming agent. By forming a rough surface, it is possible to produce a carrier having excellent microorganism adhesion.

したがって、本発明の微生物担体によれば、多数の微生物が付着可能な表面積の大きくすることができ、また、簡素な工程で製造することができることから、産業上の利用価値は頗る大きいと云える。   Therefore, according to the microorganism carrier of the present invention, the surface area to which a large number of microorganisms can adhere can be increased, and since it can be produced by a simple process, it can be said that the industrial utility value is very large. .

本発明の実施形態に用いる押出成形機を表わす説明正面図である。It is explanatory front view showing the extrusion molding machine used for embodiment of this invention. 本発明の第１実施形態のダイの断面形状を表わす正面図である。It is a front view showing the cross-sectional shape of die | dye of 1st Embodiment of this invention. 本発明の第１実施形態のダイの断面形状を表わす部分拡大図である。It is the elements on larger scale showing the cross-sectional shape of die | dye of 1st Embodiment of this invention. 本発明の第１実施形態の製造方法による成形品を表わす説明側面図である。It is explanatory side view showing the molded article by the manufacturing method of 1st Embodiment of this invention. 本発明の第１実施形態の製造方法による成形品を表わす斜視図である。It is a perspective view showing the molded article by the manufacturing method of 1st Embodiment of this invention. 本発明の第１実施形態の製造方法による成形品を表わす斜視図である。It is a perspective view showing the molded article by the manufacturing method of 1st Embodiment of this invention. 本発明の第２実施形態のダイの断面形状を表わす正面図である。It is a front view showing the cross-sectional shape of the die | dye of 2nd Embodiment of this invention. 本発明の第２実施形態のダイの断面形状を表わす部分拡大図である。It is the elements on larger scale showing the cross-sectional shape of die | dye of 2nd Embodiment of this invention. 本発明の第３実施形態のダイの断面形状を表わす正面図である。It is a front view showing the cross-sectional shape of the die | dye of 3rd Embodiment of this invention. 本発明の第３実施形態のダイの断面形状を表わす部分拡大図である。It is the elements on larger scale showing the cross-sectional shape of die | dye of 3rd Embodiment of this invention. 本発明の実施形態のダイの断面形状の変形例を表わす正面図である。It is a front view showing the modification of the cross-sectional shape of die | dye of embodiment of this invention.

本発明を実施するための形態を、具体的に図示した図面に基づいて、更に詳細に説明すると、次のとおりである。   The mode for carrying out the present invention will be described in more detail with reference to the drawings specifically illustrated as follows.

『第１実施形態』
本発明の第１実施形態を図１から図６に基づいて説明する。図中、符号１で指示するものはダイであり、このダイ１は、押出成形機Ｍの先端に配設されている。“First Embodiment”
A first embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a die, and this die 1 is disposed at the tip of the extrusion molding machine M.

しかして、本発明は、汚水処理装置等における処理槽内に投入する微生物担体の製造方法であって、まず、熱可塑性樹脂材料と発泡剤とを混合して発泡樹脂材料Ｐを調製する。   Thus, the present invention is a method for producing a microbial carrier to be introduced into a treatment tank in a sewage treatment apparatus or the like. First, a foamed resin material P is prepared by mixing a thermoplastic resin material and a foaming agent.

本実施形態では、この熱可塑性樹脂材料として、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）などのポリオレフィン系樹脂や、ポリスチレン系樹脂、ポリ塩化ビニル、エチレン−プロピレン共重合体などを採用することができる。   In this embodiment, polyolefin resin such as polypropylene (PP) and polyethylene (PE), polystyrene resin, polyvinyl chloride, ethylene-propylene copolymer, and the like can be used as the thermoplastic resin material.

また、発泡剤としては、重炭酸ナトリウム、炭酸ナトリウム、重炭酸アンモニウム、炭酸アンモニウム、亜硝酸アンモニウムなどの無機発泡剤；Ｎ，Ｎ’−ジメチル−Ｎ，Ｎ’−ジニトロン・テレフタルアミド、Ｎ，Ｎ’−ジニトロン・ペンタメチレン・テトラミンなどのニトロソ化合物；アゾジカルボンアミド、アゾジカルボキサミド、アゾビスイソブチロニトリル、アゾシクロヘキシルニトリル、アゾジアミノベンゼン、バリウム・アゾジカルボキシレートなどのアゾ化合物；ベンゼンスルホニルヒドラジド、トルエンスルホニルヒドラジド、Ｐ，Ｐ’−オキシビス（ベンゼンスルホニルヒドラジド）、ジフェニルスルホン−３，３’−ジスルホニルヒドラジドなどのスルホニルヒドラジド化合物；カルシウムアジド、４，４’−ジフェニルジスルホニルアジド、p−トルエンスルホニルアジドなどのアジド化合物などをあげることができ、これらは、それぞれ単独で使用することもできるし、２種以上を組み合わせて使用することもできる。   Examples of the foaming agent include inorganic foaming agents such as sodium bicarbonate, sodium carbonate, ammonium bicarbonate, ammonium carbonate, and ammonium nitrite; N, N′-dimethyl-N, N′-dinitrone terephthalamide, N, N ′ -Nitroso compounds such as dinitrone, pentamethylene, tetramine; azo compounds such as azodicarbonamide, azodicarboxamide, azobisisobutyronitrile, azocyclohexylnitrile, azodiaminobenzene, barium azodicarboxylate; benzenesulfonyl hydrazide, Sulfonyl hydrazide compounds such as toluenesulfonyl hydrazide, P, P′-oxybis (benzenesulfonyl hydrazide), diphenylsulfone-3,3′-disulfonyl hydrazide; calcium azide, 4,4′-diphe Distearate azide, etc. may be mentioned. Azide compounds such as p- toluenesulfonyl azide, these can either be used alone, it may be used in combination of two or more thereof.

また、本実施形態では、これらの熱可塑性樹脂材料と発泡剤との混合比率を、１００重量部：０．１〜１０重量部にするのが好ましい。このように、発泡剤を混入することにより、粘度を下げて、頭頂部12ａと基端部12ｂとの間に流速差が生じて分断され易くなる。   Moreover, in this embodiment, it is preferable that the mixing ratio of these thermoplastic resin materials and a foaming agent shall be 100 weight part: 0.1-10 weight part. Thus, by mixing the foaming agent, the viscosity is lowered, and a flow velocity difference is generated between the top portion 12a and the base end portion 12b, so that the foaming agent is easily divided.

なお、本実施形態では、適宜、発泡樹脂材料Ｐに比重調整のための充填材を混合することができる。この充填材としては、例えば、炭酸カルシウム、タルク、クレー、ケイ酸カルシウム、ケイ酸マグネシウム、ウォラストナイト、木粉、竹粉等が配合されていることが好ましい。この際、これらの熱可塑性樹脂材料と充填材との混合比率を、１００重量部：８０重量部以下にする。このような充填材を混合することによって、浮力を調節して（比重０．８５〜１．２）、水中で適切に漂わせることができる。   In the present embodiment, the foamed resin material P can be appropriately mixed with a filler for adjusting the specific gravity. As this filler, for example, calcium carbonate, talc, clay, calcium silicate, magnesium silicate, wollastonite, wood powder, bamboo powder and the like are preferably blended. At this time, the mixing ratio of the thermoplastic resin material and the filler is set to 100 parts by weight: 80 parts by weight or less. By mixing such a filler, the buoyancy can be adjusted (specific gravity 0.85 to 1.2), and can be floated appropriately in water.

本実施形態における具体的な配合比率（実施例１〜３）を以下の表に示す。
材料 実施例１ 実施例２ 実施例３
ＰＰまたはＰＥ（バージン） １００ １００ １００
タルク８０％ＭＢ ０．０ ６５．０ ２０．０
発泡剤（重曹） ３．０ ３．０ ３．０
ｔｏｔａｌ部数 １０３．０ １６８．０ １２３．０
真比重 ０．９２ １．１６ １．０１
測定比重 ０．９０ １．１４ ０．９９
発泡倍率 １．０２ １．０２ １．０２Specific blending ratios (Examples 1 to 3) in this embodiment are shown in the following table.
Materials Example 1 Example 2 Example 3
PP or PE (virgin) 100 100 100
Talc 80% MB 0.0 65.0 20.0
Blowing agent (soda) 3.0 3.0 3.0
Total number of copies 103.0 168.0 123.0
True specific gravity 0.92 1.16 1.01
Specific gravity of measurement 0.90 1.14 0.99
Foaming ratio 1.02 1.02 1.02

次いで、本実施形態に使用する押出成形機Ｍを図１に示す。この押出成形機Ｍのダイ１の断面形状は、中央の軸部11の（外周）縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12の基端部12ｂを連続的に隣接させる（図２参照）。   Next, an extrusion molding machine M used in this embodiment is shown in FIG. The cross-sectional shape of the die 1 of the extrusion molding machine M is such that a plurality of projections 12, 12... Are formed in parallel on the (outer periphery) edge of the central shaft portion 11, and the base end portion 12b of each projection 12 is formed. Adjacent to each other (see FIG. 2).

本実施形態では、ダイ１の軸部11を対称的な中空筒状（または柱状）にすることができる（図３参照）。   In the present embodiment, the shaft portion 11 of the die 1 can be formed into a symmetrical hollow cylindrical shape (or column shape) (see FIG. 3).

具体的サイズとしては、ダイ１の軸部11を厚み１．０ｍｍ程度の円筒形にすると共に、突起12の高さを０．５〜２．０ｍｍにするのが好ましい。この突起12の高さが０．５ｍｍ以下では低すぎて頭頂部12ａと基端部12ｂの間に十分な流速差が生じ難く、逆に、２．０ｍｍ以上では高すぎて基端部12ｂまで分断（途切れ）が生じ難いからである。   As a specific size, it is preferable that the shaft portion 11 of the die 1 has a cylindrical shape with a thickness of about 1.0 mm and the height of the protrusion 12 is 0.5 to 2.0 mm. If the height of the projection 12 is 0.5 mm or less, it is too low to cause a sufficient flow rate difference between the top 12 a and the base end 12 b, and conversely, if it is 2.0 mm or more, it is too high to the base end 12 b. This is because division (discontinuity) hardly occurs.

そして、前記押出成形機Ｍの押出スクリューＳを一定速度で回転させて前記ダイ１から発泡樹脂材料Ｐを押し出す。本実施形態における成形温度は、発泡剤の通常の分解温度（１８０〜２２０℃）よりも２０〜４０℃高めの２００〜２４０℃にする。   Then, the foaming resin material P is extruded from the die 1 by rotating the extrusion screw S of the extrusion molding machine M at a constant speed. The molding temperature in this embodiment is set to 200 to 240 ° C., which is 20 to 40 ° C. higher than the normal decomposition temperature (180 to 220 ° C.) of the foaming agent.

そうすると、前記ダイ１の内部において、発泡樹脂材料Ｐを突起12内の頭頂部12ａの周面に擦過させながら送出することになる。更に、熱可塑性樹脂材料に発泡剤を混合したことにより発泡樹脂材料Ｐの粘度を下げたことによって、このダイ１の外側に押し出されてきた発泡樹脂材料Ｐの軸部11表面と突起12の基端部12ｂとの境界近傍における流速に対して、当該突起12の頭頂部12ａにおける流速を相対的に小さくすることができる。   Then, the foamed resin material P is sent out while being rubbed against the peripheral surface of the crown 12a in the protrusion 12 inside the die 1. Further, by reducing the viscosity of the foamed resin material P by mixing the foaming agent with the thermoplastic resin material, the surface of the shaft portion 11 of the foamed resin material P pushed out to the outside of the die 1 and the base of the projection 12 The flow velocity at the top portion 12a of the protrusion 12 can be made relatively smaller than the flow velocity in the vicinity of the boundary with the end portion 12b.

そして、かかる粘度の低下により、こうして生じた流速差により頭頂部12ａ近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形することができる（図４および図５参照）。   Then, due to the decrease in the viscosity, the resin in the vicinity of the top 12a is divided by the flow rate difference thus generated, and the resin is agglomerated by bursting the bubbles in the resin formed by the foaming agent. Irregular irregularities can be formed on the surface in a state of being interrupted (see FIGS. 4 and 5).

然る後、長手状に押し出された成形品を所定長さ（１０ｍｍ程度）に切断することによって微生物担体を完成させることができる（図６参照）。   Thereafter, the microbial carrier can be completed by cutting the molded product extruded in a longitudinal shape into a predetermined length (about 10 mm) (see FIG. 6).

『第２実施形態』
次に、本発明の第２実施形態を図７および図８に基づいて説明する。本実施形態では、押出成形機Ｍのダイ１の断面形状は、中央の軸部11の縁部に複数の突起12・12…を並列成形して、かつ、これら各突起12を、頭頂部12ａから基端部12ｂに向けて末広がりのテーパ状に成形する。“Second Embodiment”
Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the cross-sectional shape of the die 1 of the extrusion molding machine M is such that a plurality of projections 12, 12... Are formed in parallel on the edge of the central shaft portion 11, and each projection 12 is formed on the top 12a. To the base end portion 12b.

具体的には、ダイ１の軸部11を厚み１．０ｍｍ程度の円筒形にするとともに、突起12の高さを０．５〜２．０ｍｍ、基端部12ｂの幅を０．２〜１．５ｍｍにするのが好ましい。   Specifically, the shaft portion 11 of the die 1 is formed into a cylindrical shape having a thickness of about 1.0 mm, the height of the protrusion 12 is 0.5 to 2.0 mm, and the width of the base end portion 12b is 0.2 to 1. .5 mm is preferable.

このような形状にすることによっても、第１実施形態と同様に、ダイ１の外側に押し出されてきた発泡樹脂材料Ｐの軸部11表面と突起12の基端部12ｂとの境界近傍における流速に流速差を生じさせることができ、頭頂部12ａ近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形することができる。   Even in such a shape, similarly to the first embodiment, the flow velocity in the vicinity of the boundary between the surface of the shaft portion 11 of the foamed resin material P pushed out to the outside of the die 1 and the base end portion 12b of the protrusion 12 is obtained. The flow rate difference can be caused to occur, the resin in the vicinity of the top portion 12a is divided, and the resin is agglomerated by bursting the bubbles in the resin formed by the foaming agent. With this, irregular irregularities can be formed on the surface.

『第３実施形態』
次に、本発明の第３実施形態を図９および図１０に基づいて説明する。本実施形態においては、押出成形機Ｍのダイ１の断面形状が、上記第１実施形態および第２実施形態を複合させた形状であって、即ち、中央の軸部11の（外周）縁部に複数の突起12・12…を並列成形して、これら各突起12の基端部12ｂを連続的に隣接させると共に、これら各突起12を、頭頂部12ａから基端部12ｂに向けて末広がりのテーパ状に成形する。また、この際、ダイ１の突起12の頭頂部12ａの外周縁部を略円弧形状にする。“Third embodiment”
Next, a third embodiment of the present invention will be described with reference to FIGS. In this embodiment, the cross-sectional shape of the die 1 of the extrusion molding machine M is a shape obtained by combining the first embodiment and the second embodiment, that is, the (outer) edge of the central shaft portion 11. A plurality of protrusions 12, 12... Are formed in parallel so that the base end portions 12b of these protrusions 12 are continuously adjacent to each other, and each of the protrusions 12 spreads toward the base end portion 12b from the top 12a. Molded into a tapered shape. At this time, the outer peripheral edge of the top 12a of the protrusion 12 of the die 1 is formed into a substantially arc shape.

このような形状にすることによっても、第１実施形態および第２実施形態と同様に、ダイ１の外側に押し出されてきた発泡樹脂材料Ｐの軸部11表面と突起12の基端部12ｂとの境界近傍における流速に流速差を生じさせることができ、頭頂部12ａ近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形することができる。   Even with such a shape, the surface of the shaft portion 11 of the foamed resin material P and the base end portion 12b of the protrusion 12 pushed out to the outside of the die 1 can be obtained as in the first and second embodiments. The flow velocity in the vicinity of the boundary can be made to cause a flow velocity difference, the resin in the vicinity of the top 12a is divided, and the bubbles in the resin formed by the foaming agent are ruptured to agglomerate the resin. Irregular irregularities can be formed on the surface in an interrupted state.

本発明は、概ね上記のように構成されるが、図示の実施形態に限定されるものでは決してなく、「特許請求の範囲」の記載内において種々の変更が可能であって、例えば、ダイ１の断面形状は、図１１に示すように、四角形のものや（ａ）、円筒内部にリブが成形されているもの（ｂ）、六角形のもの（ｃ）であっても良く、また、ダイ１の軸部11の内部が中実の柱状のものであっても良く、これら何れのものも本発明の技術的範囲に属する。   The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”. As shown in FIG. 11, the cross-sectional shape may be a rectangular shape, (a), a rib formed inside the cylinder (b), a hexagonal shape (c), or a die. The inside of one shaft portion 11 may be a solid columnar shape, and any of these is within the technical scope of the present invention.

１ ダイ
11 軸部
12 突起
12ａ 頭頂部
12ｂ 基端部
Ｐ 発泡樹脂材料
Ｍ 押出成形機
Ｓ 押出スクリュー
Ａ 本体
Ｔ 突起1 die
11 Shaft
12 Protrusions
12a The top of the head
12b Base end P Foamed resin material M Extruder S Extrusion screw A Body T Projection

Claims (10)

熱可塑性樹脂材料と発泡剤とを混合して発泡樹脂材料（Ｐ）を調製する一方、
押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を形成すると共に、
この押出成形機（Ｍ）の押出スクリュー（Ｓ）を一定速度で回転せしめる一方、
前記ダイ（１）の内部において、発泡樹脂材料（Ｐ）を突起（12）内の頭頂部（12ａ）の周面に擦過させながら送出すると共に、発泡剤により発泡樹脂材料（Ｐ）の粘度を下げることにより、このダイ（１）の外側に押し出されてきた発泡樹脂材料（Ｐ）の軸部（11）表面と突起（12）の基端部（12ｂ）との境界近傍における流速に対して、当該突起（12）の頭頂部（12ａ）における流速を相対的に小さくして、
こうして生じた流速差により頭頂部（12ａ）近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形し、
然る後、長手状に押し出された成形品を所定長さに切断することを特徴とする微生物担体の製造方法。While preparing a foamed resin material (P) by mixing a thermoplastic resin material and a foaming agent,
The cross-sectional shape of the die (1) of the extruder (M) is to form a plurality of protrusions (12, 12...) On the edge of the central shaft (11),
While rotating the extrusion screw (S) of this extrusion molding machine (M) at a constant speed,
Inside the die (1), the foamed resin material (P) is sent while being rubbed against the peripheral surface of the top (12a) in the protrusion (12), and the viscosity of the foamed resin material (P) is increased by the foaming agent. By lowering, with respect to the flow velocity in the vicinity of the boundary between the surface of the shaft portion (11) of the foamed resin material (P) extruded to the outside of the die (1) and the base end portion (12b) of the protrusion (12). , By relatively reducing the flow velocity at the top (12a) of the protrusion (12),
The surface in a state where the resin is aggregated by breaking the resin in the vicinity of the top (12a) by the flow velocity difference thus generated and by bursting the bubbles in the resin formed by the foaming agent, and breaking in the longitudinal direction. Irregular irregularities are molded into
After that, a method for producing a microbial carrier, characterized in that a molded product extruded in a longitudinal shape is cut into a predetermined length. 押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を並列成形して、かつ、これら各突起（12）を、頭頂部（12ａ）から基端部（12ｂ）に向けて末広がりのテーパ状に成形することを特徴とする請求項１記載の微生物担体の製造方法。   The cross-sectional shape of the die (1) of the extrusion molding machine (M) is such that a plurality of projections (12, 12,...) Are formed in parallel on the edge of the central shaft portion (11), and each of these projections (12) The method for producing a microbial carrier according to claim 1, characterized in that the tape is formed in a taper shape spreading from the top (12a) to the base end (12b). 押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を並列成形して、かつ、これら各突起（12）の基端部（12ｂ）を連続的に隣接させることを特徴とする請求項１または２記載の微生物担体の製造方法。   The cross-sectional shape of the die (1) of the extrusion molding machine (M) is such that a plurality of projections (12, 12,...) Are formed in parallel on the edge of the central shaft portion (11), and each of these projections (12) The method for producing a microbial carrier according to claim 1 or 2, wherein the base end portions (12b) of the microbial carriers are continuously adjacent to each other. ダイ（１）の中央の軸部（11）の外側周縁に複数の突起（12・12…）を成形することを特徴とする請求項１〜３の何れか一つに記載の微生物担体の製造方法。   The microbial carrier according to any one of claims 1 to 3, wherein a plurality of protrusions (12, 12, ...) are formed on the outer peripheral edge of the central shaft portion (11) of the die (1). Method. ダイ（１）の軸部（11）を対称的な中空筒状または柱状にすることを特徴とする請求項１〜４の何れか一つに記載の微生物担体の製造方法。   The method for producing a microorganism carrier according to any one of claims 1 to 4, wherein the shaft (11) of the die (1) is formed into a symmetrical hollow cylinder or column. 熱可塑性樹脂材料と発泡剤との混合比率を、１００重量部：０．１〜１０重量部にすることを特徴とする請求項１〜５の何れか一つに記載の微生物担体の製造方法。   The method for producing a microbial carrier according to any one of claims 1 to 5, wherein the mixing ratio of the thermoplastic resin material and the foaming agent is 100 parts by weight: 0.1 to 10 parts by weight. 発泡樹脂材料（Ｐ）に比重調整のための充填材を混合して、かつ、熱可塑性樹脂材料と充填材との混合比率を、１００重量部：８０重量部以下にすることを特徴とする請求項１〜６の何れか一つに記載の微生物担体の製造方法。   A filler for adjusting specific gravity is mixed with the foamed resin material (P), and a mixing ratio of the thermoplastic resin material and the filler is 100 parts by weight: 80 parts by weight or less. Item 7. A method for producing a microbial carrier according to any one of Items 1 to 6. 熱可塑性樹脂材料と発泡剤とを混合して発泡樹脂材料（Ｐ）を調製する一方、
押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を形成すると共に、
この押出成形機（Ｍ）の押出スクリュー（Ｓ）を一定速度で回転せしめる一方、
前記ダイ（１）の内部において、発泡樹脂材料（Ｐ）を突起（12）内の頭頂部（12ａ）の周面に擦過させながら送出すると共に、発泡剤により発泡樹脂材料（Ｐ）の粘度を下げることにより、このダイ（１）の外側に押し出されてきた発泡樹脂材料（Ｐ）の軸部（11）表面と突起（12）の基端部（12ｂ）との境界近傍における流速に対して、当該突起（12）の頭頂部（12ａ）における流速を相対的に小さくして、
こうして生じた流速差により頭頂部（12ａ）近傍の樹脂を分断させて、かつ、発泡剤により形成した樹脂内の気泡を破裂させることによって樹脂を凝集せしめて、長手方向に亙り途切れた状態で表面に不規則な凹凸を成形し、
長手状に押し出された成形品を所定長さに切断して形成されていることを特徴とする微生物担体。While preparing a foamed resin material (P) by mixing a thermoplastic resin material and a foaming agent,
The cross-sectional shape of the die (1) of the extruder (M) is to form a plurality of protrusions (12, 12...) On the edge of the central shaft (11),
While rotating the extrusion screw (S) of this extrusion molding machine (M) at a constant speed,
Inside the die (1), the foamed resin material (P) is sent while being rubbed against the peripheral surface of the top (12a) in the protrusion (12), and the viscosity of the foamed resin material (P) is increased by the foaming agent. By lowering, with respect to the flow velocity in the vicinity of the boundary between the surface of the shaft portion (11) of the foamed resin material (P) extruded to the outside of the die (1) and the base end portion (12b) of the protrusion (12). , By relatively reducing the flow velocity at the top (12a) of the protrusion (12),
The surface in a state where the resin is aggregated by breaking the resin in the vicinity of the top (12a) by the flow velocity difference thus generated and by bursting the bubbles in the resin formed by the foaming agent, and breaking in the longitudinal direction. Irregular irregularities are molded into
A microbial carrier characterized by being formed by cutting a molded product extruded in a longitudinal shape into a predetermined length. 押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を並列成形して、かつ、これら各突起（12）を、頭頂部（12ａ）から基端部（12ｂ）に向けて末広がりのテーパ状に成形して、形成されていることを特徴とする請求項８記載の微生物担体。   The cross-sectional shape of the die (1) of the extrusion molding machine (M) is such that a plurality of projections (12, 12,...) Are formed in parallel on the edge of the central shaft portion (11), and each of these projections (12) The microbial carrier according to claim 8, wherein the microbial carrier is formed into a taper shape that spreads from the top (12a) toward the base end (12b). 押出成形機（Ｍ）のダイ（１）の断面形状は、中央の軸部（11）の縁部に複数の突起（12・12…）を並列成形して、かつ、これら各突起（12）の基端部（12ｂ）を連続的に隣接させて、形成されていることを特徴とする請求項８または９記載の微生物担体。   The cross-sectional shape of the die (1) of the extrusion molding machine (M) is such that a plurality of projections (12, 12,...) Are formed in parallel on the edge of the central shaft portion (11), and each of these projections (12) The microbial carrier according to claim 8 or 9, wherein the base end (12b) is continuously adjacent to each other.
JP2012521177A 2010-06-25 2010-09-01 Microbial carrier and method for producing the same Active JP5492299B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012521177A JP5492299B2 (en) 2010-06-25 2010-09-01 Microbial carrier and method for producing the same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010144859 2010-06-25
JP2010144859 2010-06-25
JP2012521177A JP5492299B2 (en) 2010-06-25 2010-09-01 Microbial carrier and method for producing the same
PCT/JP2010/005393 WO2011161736A1 (en) 2010-06-25 2010-09-01 Microorganism carrier and method for producing same

Publications (2)

Publication Number Publication Date
JPWO2011161736A1 JPWO2011161736A1 (en) 2013-08-19
JP5492299B2 true JP5492299B2 (en) 2014-05-14

Family

ID=45370952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012521177A Active JP5492299B2 (en) 2010-06-25 2010-09-01 Microbial carrier and method for producing the same

Country Status (2)

Country Link
JP (1) JP5492299B2 (en)
WO (1) WO2011161736A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102327742B1 (en) * 2021-04-14 2021-11-17 김순연 Microorganism carrie and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3018208B1 (en) * 2014-03-05 2016-10-14 Aliaxis R&D S A S METHOD FOR MANUFACTURING A FASTENING BRACKET AND FIXING BRACKET FOR BACTERIA

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123596A (en) * 1982-12-28 1984-07-17 Ryowa Sanshi Kk Production of carrier for sticking of microorganism for treating sewage
JPH09296066A (en) * 1996-05-02 1997-11-18 Ogura Boeki Kk Preparation of carrier with microorganism deposited thereon and carrier with microortganism deposited thereon
JPH10193425A (en) * 1997-01-14 1998-07-28 Tsutsunaka Plast Ind Co Ltd Manufacture of extrusion foam
JP2001310312A (en) * 2000-05-01 2001-11-06 Yamasho:Kk Porous composite formed body, multiobjective material using the same, composition applied to its manufacture, and its manufacturing method
JP2003117577A (en) * 2001-10-16 2003-04-22 Mitsubishi Rayon Co Ltd Microorganism immobilized carrier and method for manufacturing the same, and waste water treating method using the carrier
JP2003117980A (en) * 2001-10-16 2003-04-23 Sekisui Chem Co Ltd Method for producing polyolefin resin open-cell foam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123596A (en) * 1982-12-28 1984-07-17 Ryowa Sanshi Kk Production of carrier for sticking of microorganism for treating sewage
JPH09296066A (en) * 1996-05-02 1997-11-18 Ogura Boeki Kk Preparation of carrier with microorganism deposited thereon and carrier with microortganism deposited thereon
JPH10193425A (en) * 1997-01-14 1998-07-28 Tsutsunaka Plast Ind Co Ltd Manufacture of extrusion foam
JP2001310312A (en) * 2000-05-01 2001-11-06 Yamasho:Kk Porous composite formed body, multiobjective material using the same, composition applied to its manufacture, and its manufacturing method
JP2003117577A (en) * 2001-10-16 2003-04-22 Mitsubishi Rayon Co Ltd Microorganism immobilized carrier and method for manufacturing the same, and waste water treating method using the carrier
JP2003117980A (en) * 2001-10-16 2003-04-23 Sekisui Chem Co Ltd Method for producing polyolefin resin open-cell foam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102327742B1 (en) * 2021-04-14 2021-11-17 김순연 Microorganism carrie and method for manufacturing the same

Also Published As

Publication number Publication date
WO2011161736A1 (en) 2011-12-29
JPWO2011161736A1 (en) 2013-08-19

Similar Documents

Publication Publication Date Title
JP5650373B2 (en) Method for manufacturing fluid processing carrier
CN106883490B (en) Micro-foaming master batch, preparation method thereof and refrigerator foaming plate
CN106883446B (en) Micro-foaming functional master batch composition, preparation method thereof and refrigerator foaming plate
JP5492299B2 (en) Microbial carrier and method for producing the same
JP6535629B2 (en) Method of producing resin particles
CN1358620A (en) Polyolefine resin sparkling sheet material and productive method
JP4230375B2 (en) Composite board
CN104311993A (en) Polypropylene sheet foaming technology
JP2014172381A (en) Foamed resin made plate and production method thereof
JP4612266B2 (en) Thermoplastic resin molded article excellent in wood texture and method for producing the same
JP3581025B2 (en) Method for producing non-crosslinked polypropylene resin foam sheet and non-crosslinked polypropylene resin foam sheet
US20070023946A1 (en) Continuous method for producing solid, hollow or open profiles
JP3718570B2 (en) Method for producing extruded foam
JP5964195B2 (en) Microbial carrier
JP2000033647A (en) Production of thermoplastic resin sheet-like material
JP4999096B2 (en) Thermoplastic resin foam
JP2008274072A (en) Resin composition for crosspiece and crosspiece
JP2002240124A (en) Method for producing three-layered resin pipe
JP2004099701A (en) Foamed molded article appearing to be made from ice and method for producing the same
JPS63182130A (en) Manufacture of platelike foam of polyolefin resin
US9920177B2 (en) Continuous method for producing solid, hollow or open profiles
JP2005041034A (en) Method for manufacturing extruded foamed molded product
JP2009292039A (en) Screw
JP2007276245A (en) Method for producing foamed resin-extruded body
CN105922538B (en) Extruder screw for a process for foaming polymers and extruder with such a screw

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140219

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140228

R150 Certificate of patent or registration of utility model

Ref document number: 5492299

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150