GB1405080A - Reduction of dissolved organic lead content in aqueous solutions - Google Patents

Reduction of dissolved organic lead content in aqueous solutions

Info

Publication number
GB1405080A
GB1405080A GB1033874A GB1033874A GB1405080A GB 1405080 A GB1405080 A GB 1405080A GB 1033874 A GB1033874 A GB 1033874A GB 1033874 A GB1033874 A GB 1033874A GB 1405080 A GB1405080 A GB 1405080A
Authority
GB
United Kingdom
Prior art keywords
organic lead
lead content
reduction
aqueous solutions
soluble
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
GB1033874A
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.)
Ethyl Corp
Original Assignee
Ethyl Corp
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 Ethyl Corp filed Critical Ethyl Corp
Publication of GB1405080A publication Critical patent/GB1405080A/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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C02F1/64—Heavy metal compounds of iron or manganese
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH

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)
  • Removal Of Specific Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1405080 Reduction of organic lead content in aqueous solutions ETHYL CORP 7 March 1974 [23 March 1973 9 July 1973] 10338/74 Heading C1C A process for reducing the soluble organic lead content of an aqueous solution comprises (a) treating the solution by contacting it with Fe (II) ions and a water-soluble borohydride salt and (b) separating the resulting insoluble leadcontaining product. Additionally the aqueous solution may be contacted with a water-soluble high MW anionic polyelectrolyte, e.g. acrylamide polymer. The process is useful for treatina effluent from alkyl lead manufacture. The pH is 9 to 11, and a temperature of 15-50‹ C. is preferred. Organic lead concentrations are reduced to less than 1 ppm.
GB1033874A 1973-03-23 1974-03-07 Reduction of dissolved organic lead content in aqueous solutions Expired GB1405080A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34425673A 1973-03-23 1973-03-23
US37744173A 1973-07-09 1973-07-09

Publications (1)

Publication Number Publication Date
GB1405080A true GB1405080A (en) 1975-09-03

Family

ID=26993827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1033874A Expired GB1405080A (en) 1973-03-23 1974-03-07 Reduction of dissolved organic lead content in aqueous solutions

Country Status (5)

Country Link
CA (1) CA1025134A (en)
DE (1) DE2408995C3 (en)
FR (1) FR2222320B1 (en)
GB (1) GB1405080A (en)
IT (1) IT1011117B (en)

Also Published As

Publication number Publication date
IT1011117B (en) 1977-01-20
DE2408995C3 (en) 1978-10-05
FR2222320A1 (en) 1974-10-18
FR2222320B1 (en) 1976-12-17
DE2408995A1 (en) 1974-10-10
CA1025134A (en) 1978-01-24
DE2408995B2 (en) 1978-02-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee