GB1474145A - Reducing the contents of heavy metals in solution - Google Patents

Reducing the contents of heavy metals in solution

Info

Publication number
GB1474145A
GB1474145A GB1736975A GB1736975A GB1474145A GB 1474145 A GB1474145 A GB 1474145A GB 1736975 A GB1736975 A GB 1736975A GB 1736975 A GB1736975 A GB 1736975A GB 1474145 A GB1474145 A GB 1474145A
Authority
GB
United Kingdom
Prior art keywords
waters
iron
electropositive
purification
contents
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.)
Expired
Application number
GB1736975A
Other languages
English (en)
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.)
Tecneco SpA
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 GB1474145A publication Critical patent/GB1474145A/en
Expired legal-status Critical Current

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)
GB1736975A 1974-05-08 1975-04-25 Reducing the contents of heavy metals in solution Expired GB1474145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22396/74A IT1010486B (it) 1974-05-08 1974-05-08 Procedimento per la depurazione delle acque di scarico

Publications (1)

Publication Number Publication Date
GB1474145A true GB1474145A (en) 1977-05-18

Family

ID=11195718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1736975A Expired GB1474145A (en) 1974-05-08 1975-04-25 Reducing the contents of heavy metals in solution

Country Status (23)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613128C2 (de) * 1976-03-27 1982-03-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Verminderung des Quecksilbergehaltes von Betriebsabwässern
DE3321451A1 (de) * 1982-06-16 1983-12-22 Occidental Chemical Corp., 48089 Warren, Mich. Vorrichtung und verfahren zum entfernen von kupferionen aus waessrigen loesungen
DE3411228C1 (de) * 1984-03-27 1985-05-30 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Verfahren zur umweltfreundlichen Reinigung von photographischem Waschwasser aus Filmverarbeitungsmaschinen und Vorrichtung zur Durchführung des Verfahrens
DE4217987A1 (de) * 1992-05-30 1993-12-02 Battelle Institut E V Verfahren zur Abtrennung von Schwermetallen, insbesondere in Form von Quecksilber, Nickel und Kobalt sowie Verbindungen hiervon aus dem Erdreich, Schlämmen und Wässern
DE102007045337B4 (de) * 2007-09-22 2021-01-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Schutz vor Chrom(VI)-haltigem Staub

Family Cites Families (1)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AU667132B2 (en) * 1992-09-18 1996-03-07 Kruger Off-Shore A/S Method for the purification of metal-containing aqueous media and method of preparing an adsorbent

Also Published As

Publication number Publication date
DD118051A5 (de) 1976-02-12
ATA390876A (de) 1979-01-15
CS202546B2 (en) 1981-01-30
NL7505514A (nl) 1975-11-11
IL47073A (en) 1978-07-31
IT1010486B (it) 1977-01-10
PL111038B1 (en) 1980-08-30
DE2520531A1 (de) 1975-11-13
AT351775B (de) 1978-02-15
IE41336B1 (en) 1979-12-05
SE7505290L (sv) 1975-11-10
NO751626L (de) 1975-11-11
BE828570A (fr) 1975-08-18
ATA351775A (de) 1978-02-15
ES437875A1 (es) 1977-01-01
JPS50152557A (de) 1975-12-08
IE41336L (en) 1975-11-08
YU103975A (en) 1982-02-28
FI751142A (de) 1975-11-09
AU8013875A (en) 1976-10-21
AT346253B (de) 1978-11-10
FR2270209A1 (de) 1975-12-05
IL47073A0 (en) 1975-06-25
DK196775A (da) 1975-11-09
RO69366A (ro) 1981-07-30
LU72427A1 (de) 1975-08-26
CH617642A5 (en) 1980-06-13
FR2270209B1 (de) 1980-04-18
TR19213A (tr) 1978-06-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee