DE2928784C2 - - Google Patents

Info

Publication number
DE2928784C2
DE2928784C2 DE19792928784 DE2928784A DE2928784C2 DE 2928784 C2 DE2928784 C2 DE 2928784C2 DE 19792928784 DE19792928784 DE 19792928784 DE 2928784 A DE2928784 A DE 2928784A DE 2928784 C2 DE2928784 C2 DE 2928784C2
Authority
DE
Germany
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.)
Expired
Application number
DE19792928784
Other versions
DE2928784A1 (de
Inventor
Lena Robecco Mailand/Milano It Filippetti
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.)
HYDRO SYSTEM Srl MAILAND/MILANO IT
Original Assignee
HYDRO SYSTEM Srl MAILAND/MILANO IT
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 HYDRO SYSTEM Srl MAILAND/MILANO IT filed Critical HYDRO SYSTEM Srl MAILAND/MILANO IT
Publication of DE2928784A1 publication Critical patent/DE2928784A1/de
Application granted granted Critical
Publication of DE2928784C2 publication Critical patent/DE2928784C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/30—Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30207—Sphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30296—Other shapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/304—Composition or microstructure of the elements
    • B01J2219/30466—Plastics
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B29C2045/338—Mould parts with combined axial and transversal movements
    • 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
DE19792928784 1978-09-01 1979-07-17 Anlage zur herstellung von fuellelementen mit grosser austauschflaeche aus kunststoff mit duennen, aber steifen waenden fuer biologische tropfkoerper-klaeranlagen und die so hergestellten fuellelemente Granted DE2928784A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2726178A IT1098434B (it) 1978-09-01 1978-09-01 Apparecchiatura per la produzione di elementi di riempimento a grande superficie di scambio in materia plastica a parete sottile,marigida,per impianti di depurazione biologica a letti filtranti,ed elementi di riempimento cosi' ottenuti

Publications (2)

Publication Number Publication Date
DE2928784A1 DE2928784A1 (de) 1980-03-13
DE2928784C2 true DE2928784C2 (de) 1987-01-22

Family

ID=11221298

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792928784 Granted DE2928784A1 (de) 1978-09-01 1979-07-17 Anlage zur herstellung von fuellelementen mit grosser austauschflaeche aus kunststoff mit duennen, aber steifen waenden fuer biologische tropfkoerper-klaeranlagen und die so hergestellten fuellelemente

Country Status (2)

Country Link
DE (1) DE2928784A1 (de)
IT (1) IT1098434B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724821A1 (de) * 1986-08-04 1988-03-03 Mueanyagfel Dolgozo Vall Fuellelemente aus kunststoff zur ungeordneten fuellung von biologischen tropfkoerpern

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106465A1 (de) * 1981-02-21 1982-09-09 Menzel Gmbh & Co, 7000 Stuttgart Verfahren, vorrichtung und mittel zur abwasserreinigung
IT1138844B (it) * 1981-07-17 1986-09-17 Hydro System Srl Corpi di riempimento

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE191890C (de) *
FR1405374A (fr) * 1964-03-25 1965-07-09 Hauts Fourneaux & Forges De Sa Corps de remplissage pour le traitement des fluides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3724821A1 (de) * 1986-08-04 1988-03-03 Mueanyagfel Dolgozo Vall Fuellelemente aus kunststoff zur ungeordneten fuellung von biologischen tropfkoerpern

Also Published As

Publication number Publication date
IT1098434B (it) 1985-09-07
DE2928784A1 (de) 1980-03-13
IT7827261A0 (it) 1978-09-01

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee