NZ228257A - Plastics contact material strips for biological water treatment - Google Patents

Plastics contact material strips for biological water treatment

Info

Publication number
NZ228257A
NZ228257A NZ22825789A NZ22825789A NZ228257A NZ 228257 A NZ228257 A NZ 228257A NZ 22825789 A NZ22825789 A NZ 22825789A NZ 22825789 A NZ22825789 A NZ 22825789A NZ 228257 A NZ228257 A NZ 228257A
Authority
NZ
New Zealand
Prior art keywords
filler
strips
biological
water treatment
contact material
Prior art date
Application number
NZ22825789A
Inventor
Hartwig Basse
Jurgen Wittek
Original Assignee
Norddeutsche Seekabelwerke Ag
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
Priority claimed from DE3807695A external-priority patent/DE3807695A1/en
Application filed by Norddeutsche Seekabelwerke Ag filed Critical Norddeutsche Seekabelwerke Ag
Publication of NZ228257A publication Critical patent/NZ228257A/en

Links

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
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02—Thermal shrinking
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/40—Applying molten plastics, e.g. hot melt
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/30—Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
    • B60N2/3095—Auxiliary rear seats accessible from outside the vehicle when in an in-use position
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/14—Filters
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1084—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing of continuous or running length bonded web
    • Y10T156/1087—Continuous longitudinal slitting
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24777—Edge feature

Abstract

A filler and a process for producing it, where the filler, in the case of the biological treatment of sewage, should in particular exhibit a "biological meadow" which is necessary for this purpose, and a uniform moistening ability. In the case of known fillers which consist of strips, it has been found that the strips straighten under influence of encrustation and thereby form a pore foothold for the "biological meadow" and seek to become attached to each other. The purpose of the novel filler is to eliminate this drawback, and for it to be easy to manufacture and install. The novel filler exhibits at least one tensile member (fibre 29), which has been located beside the strips 20. When suspended, this takes up the load such that the strips 20 are essentially unloaded and thereby retain the shape they were given during manufacture. The filler is especially suitable for the biological treatment of sewage and drinking water, i.e. denitrification. <IMAGE>
NZ22825789A 1988-03-09 1989-03-07 Plastics contact material strips for biological water treatment NZ228257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3807695A DE3807695A1 (en) 1988-03-09 1988-03-09 FILLING MATERIAL AND METHOD FOR PRODUCING THE SAME

Publications (1)

Publication Number Publication Date
NZ228257A true NZ228257A (en) 1991-10-25

Family

ID=6349230

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ22825789A NZ228257A (en) 1988-03-09 1989-03-07 Plastics contact material strips for biological water treatment

Country Status (8)

Country Link
AT (1) ATE76041T1 (en)
AU (1) AU611776B2 (en)
DE (1) DE58901362D1 (en)
DK (1) DK174626B1 (en)
ES (1) ES2032064T3 (en)
FI (1) FI100522B (en)
NO (1) NO179280C (en)
NZ (1) NZ228257A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807695A1 (en) * 1988-03-09 1989-09-21 Norddeutsche Seekabelwerke Ag FILLING MATERIAL AND METHOD FOR PRODUCING THE SAME

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345595A1 (en) * 1983-12-16 1985-06-27 Felix Schoeller jr. GmbH & Co KG, 4500 Osnabrück FILLING FOR DRIP BODIES FOR BIOLOGICAL WASTE WATER TREATMENT
FR2565841B1 (en) * 1984-06-14 1989-08-18 Inst Nat Rech Chimique MATERIAL WITH A LARGE SPECIFIC SURFACE AND ITS APPLICATIONS FOR PROMOTING CONTACT BETWEEN MEDIA OR REAGENTS INVOLVING PHYSICAL AND / OR CHEMICAL, AND / OR BIOLOGICAL PHENOMENES
DE3641960A1 (en) * 1986-12-09 1988-06-16 Norddeutsche Seekabelwerke Ag FILLING MATERIAL FOR DRIP BODIES FOR THE TREATMENT OF LIQUIDS AND METHOD FOR THE PRODUCTION AND ASSEMBLY OF THE SAME

Also Published As

Publication number Publication date
FI100522B (en) 1997-12-31
DK113589D0 (en) 1989-03-08
DE58901362D1 (en) 1992-06-17
FI890956A0 (en) 1989-02-28
NO890918L (en) 1989-09-11
FI890956A (en) 1989-09-10
ES2032064T3 (en) 1993-01-01
DK174626B1 (en) 2003-07-28
NO890918D0 (en) 1989-03-03
ATE76041T1 (en) 1992-05-15
DK113589A (en) 1989-09-10
AU3105289A (en) 1989-09-14
NO179280C (en) 1996-09-11
AU611776B2 (en) 1991-06-20
NO179280B (en) 1996-06-03

Similar Documents

Publication Publication Date Title
ATE225192T1 (en) MATERIAL FOR BONE PROSTHESIS CONTAINING CALCIUM CARBONATE PARTICLES DISPERSED IN A BIORESORBABLE POLYMER MATRIX
DE3751925D1 (en) Ostomy pouch specially designed for flushing, method of manufacture and method of disposal
DE69223674T2 (en) Superficially cross-linked and surface-active coated absorbent resin particles and method for their production
DE69518423D1 (en) Continuous process for the production of very stable, very finely divided, low-viscosity polymer polyols with a low average particle size
DE69021947T2 (en) Process for the production of micro-voids containing polymer particles.
AT363865B (en) SOLID PARTICLES WITH A CONTENT OF CALCIUM PEROXIDE, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE FOR WATER TREATMENT
BR9204330A (en) BANDAGE FOR WOUNDS AND PROCESS FOR FORMING A POLYURETHANE FOAM
DE69102096D1 (en) Copolymers suitable for film production and their use for water vapor permeable coatings.
DE3173508D1 (en) Pressurized aeration tank for activated-sludge process sewage treatment
DE3470519D1 (en) Process and apparatus for the biological treatment of waste water
NZ228257A (en) Plastics contact material strips for biological water treatment
ATE22136T1 (en) PRODUCTS FOR CLOTHING, INSULATION AND PACKAGING FROM INDUSTRIAL WASTE AND IN PARTICULAR PULP AND PROCESS FOR THEIR MANUFACTURE.
GB2130570B (en) Method for the elimination or prevention of blockages in bottom aerators in water treatment and sewage treatment under operating conditions
JPS5615889A (en) Sewage purifying apparatus
FR2359080A1 (en) Purifying waste water esp. domestic sewage of small settlements - with bio-filter between primary and secondary settlements and digesters
ES2040688T3 (en) MULTI-COMPONENT SYSTEM OF NATURAL POLYMERS AND MOLDED BODIES OF PAN STRUCTURE WITH SPECIFIC PROPERTIES OF ASBESTOS FOR USE IN HYDRAULIC BINDERS.
DE59606631D1 (en) Carrier material for biomass in waste water treatment processes
GR3007449T3 (en)
Gould Oxygen in wastewater treatment.
JPS5447362A (en) Biological treatment of waste water
Peukert Possibilities and Limits of Further Pig Slurry Treatment in Pond Systems.
MY104221A (en) Filter device
JPS53108661A (en) Apparatus for bioligical treatment of waste water
HUP0001128A2 (en) Compact sewage treatment plant
ES8800288A1 (en) Process for the preparation of a hydrogel or material forming partly neutralised and slightly cross-linked hydrogel which is substantially insoluble in water

Legal Events

Date Code Title Description
RENW Renewal (renewal fees accepted)