ATA351775A - METHOD FOR PURIFYING CHROMATIC WASTE WATER - Google Patents

METHOD FOR PURIFYING CHROMATIC WASTE WATER

Info

Publication number
ATA351775A
ATA351775A AT753517A AT351775A ATA351775A AT A351775 A ATA351775 A AT A351775A AT 753517 A AT753517 A AT 753517A AT 351775 A AT351775 A AT 351775A AT A351775 A ATA351775 A AT A351775A
Authority
AT
Austria
Prior art keywords
chromatic
purifying
waste water
waste
water
Prior art date
Application number
AT753517A
Other languages
German (de)
Other versions
AT346253B (en
Inventor
Carlo Piccinini
Fabio Federici
Original Assignee
Tecneco Spa
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 Tecneco Spa filed Critical Tecneco Spa
Publication of ATA351775A publication Critical patent/ATA351775A/en
Application granted granted Critical
Publication of AT346253B publication Critical patent/AT346253B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C02F1/705—Reduction by metals
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/467—Foam spreading or levelling devices
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Removal Of Specific Substances (AREA)
  • Catalysts (AREA)
AT351775A 1974-05-08 1975-05-07 METHOD FOR CLEANING UP CHROMATIC WASTE AT346253B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22396/74A IT1010486B (en) 1974-05-08 1974-05-08 PROCEDURE FOR THE PURIFICATION OF WASTE WATER

Publications (2)

Publication Number Publication Date
ATA351775A true ATA351775A (en) 1978-02-15
AT346253B AT346253B (en) 1978-11-10

Family

ID=11195718

Family Applications (2)

Application Number Title Priority Date Filing Date
AT351775A AT346253B (en) 1974-05-08 1975-05-07 METHOD FOR CLEANING UP CHROMATIC WASTE
AT390876A AT351775B (en) 1974-05-08 1976-05-28 PROCESS FOR SHAPING THE SURFACE OF FOAMED POLYMERS FROM LIQUID MIXTURES IN ONE STEP

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT390876A AT351775B (en) 1974-05-08 1976-05-28 PROCESS FOR SHAPING THE SURFACE OF FOAMED POLYMERS FROM LIQUID MIXTURES IN ONE STEP

Country Status (23)

Country Link
JP (1) JPS50152557A (en)
AT (2) AT346253B (en)
BE (1) BE828570A (en)
CH (1) CH617642A5 (en)
CS (1) CS202546B2 (en)
DD (1) DD118051A5 (en)
DE (1) DE2520531A1 (en)
DK (1) DK196775A (en)
ES (1) ES437875A1 (en)
FI (1) FI751142A (en)
FR (1) FR2270209B1 (en)
GB (1) GB1474145A (en)
IE (1) IE41336B1 (en)
IL (1) IL47073A (en)
IT (1) IT1010486B (en)
LU (1) LU72427A1 (en)
NL (1) NL7505514A (en)
NO (1) NO751626L (en)
PL (1) PL111038B1 (en)
RO (1) RO69366A (en)
SE (1) SE7505290L (en)
TR (1) TR19213A (en)
YU (1) YU103975A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613128C2 (en) * 1976-03-27 1982-03-04 Hoechst Ag, 6000 Frankfurt Process for reducing the mercury content of industrial wastewater
DE3321451A1 (en) * 1982-06-16 1983-12-22 Occidental Chemical Corp., 48089 Warren, Mich. DEVICE AND METHOD FOR REMOVING COPPERIONS FROM AQUEOUS SOLUTIONS
DE3411228C1 (en) * 1984-03-27 1985-05-30 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Process for the environmentally friendly purification of photographic wash water from film processing machines and apparatus for carrying out the process
DE4217987A1 (en) * 1992-05-30 1993-12-02 Battelle Institut E V Removal and recovery of heavy metals from earth, sludges and waterways - by amalgamation and sedimentation of esp. mercury@, nickel@ and cobalt@ and their cpds., by addn. of powered zinc@ or aluminium@
WO1994006717A1 (en) * 1992-09-18 1994-03-31 I. Krüger Systems As Method for the purification of metal-containing aqueous media and method of preparing an adsorbent
DE102007045337B4 (en) * 2007-09-22 2021-01-07 Bayerische Motoren Werke Aktiengesellschaft Procedure for protection against dust containing chromium (VI)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2177656B1 (en) * 1972-03-31 1979-02-16 Lewandowski Raymond

Also Published As

Publication number Publication date
DD118051A5 (en) 1976-02-12
ATA390876A (en) 1979-01-15
CS202546B2 (en) 1981-01-30
NL7505514A (en) 1975-11-11
IL47073A (en) 1978-07-31
IT1010486B (en) 1977-01-10
PL111038B1 (en) 1980-08-30
DE2520531A1 (en) 1975-11-13
AT351775B (en) 1978-02-15
IE41336B1 (en) 1979-12-05
SE7505290L (en) 1975-11-10
NO751626L (en) 1975-11-11
BE828570A (en) 1975-08-18
ES437875A1 (en) 1977-01-01
JPS50152557A (en) 1975-12-08
GB1474145A (en) 1977-05-18
IE41336L (en) 1975-11-08
YU103975A (en) 1982-02-28
FI751142A (en) 1975-11-09
AU8013875A (en) 1976-10-21
AT346253B (en) 1978-11-10
FR2270209A1 (en) 1975-12-05
IL47073A0 (en) 1975-06-25
DK196775A (en) 1975-11-09
RO69366A (en) 1981-07-30
LU72427A1 (en) 1975-08-26
CH617642A5 (en) 1980-06-13
FR2270209B1 (en) 1980-04-18
TR19213A (en) 1978-06-07

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee