BR7406705D0 - Aperfeicoamento em processo para tratamento de um liquido usado proviniente de um processo de producao de hidrossulfito por um processo de lama ativada - Google Patents

Aperfeicoamento em processo para tratamento de um liquido usado proviniente de um processo de producao de hidrossulfito por um processo de lama ativada

Info

Publication number
BR7406705D0
BR7406705D0 BR670574A BR670574A BR7406705D0 BR 7406705 D0 BR7406705 D0 BR 7406705D0 BR 670574 A BR670574 A BR 670574A BR 670574 A BR670574 A BR 670574A BR 7406705 D0 BR7406705 D0 BR 7406705D0
Authority
BR
Brazil
Prior art keywords
hydrosulphite
treating
improvement
used liquid
activated mud
Prior art date
Application number
BR670574A
Other languages
English (en)
Inventor
Y Yoshikawa
S Otsuka
A Amemiya
T Komatsu
Original Assignee
Mitsubishi Gas Chemical Co
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 Mitsubishi Gas Chemical Co filed Critical Mitsubishi Gas Chemical Co
Publication of BR7406705D0 publication Critical patent/BR7406705D0/pt

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
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1231—Treatments of toxic sewage
    • 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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • 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
BR670574A 1973-08-15 1974-08-14 Aperfeicoamento em processo para tratamento de um liquido usado proviniente de um processo de producao de hidrossulfito por um processo de lama ativada BR7406705D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9143573A JPS5341464B2 (pt) 1973-08-15 1973-08-15

Publications (1)

Publication Number Publication Date
BR7406705D0 true BR7406705D0 (pt) 1975-05-27

Family

ID=14026277

Family Applications (1)

Application Number Title Priority Date Filing Date
BR670574A BR7406705D0 (pt) 1973-08-15 1974-08-14 Aperfeicoamento em processo para tratamento de um liquido usado proviniente de um processo de producao de hidrossulfito por um processo de lama ativada

Country Status (12)

Country Link
US (1) US3962073A (pt)
JP (1) JPS5341464B2 (pt)
BE (1) BE818892A (pt)
BR (1) BR7406705D0 (pt)
CA (1) CA1028432A (pt)
DE (1) DE2439149A1 (pt)
FI (1) FI62811C (pt)
FR (1) FR2240891B1 (pt)
GB (1) GB1455047A (pt)
NL (1) NL7410852A (pt)
NO (1) NO142294C (pt)
SE (1) SE401363B (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108068A (en) * 1977-02-28 1978-09-20 Mitsubishi Gas Chem Co Inc Purifying method for waste solution formed in takahax desulfurization apparatus
JPS5415352A (en) * 1977-07-06 1979-02-05 Mitsubishi Heavy Ind Ltd Method of biologically treating waste water containing polythionic acid
JPS58186498A (ja) * 1982-04-27 1983-10-31 Sumitomo Jukikai Envirotec Kk 亜硫酸含有廃水の生物化学的処理法
US4582690A (en) * 1984-08-06 1986-04-15 University Of Waterloo Oxidation of polythionates
JPH02144197A (ja) * 1988-11-21 1990-06-01 Tetsuzo Tomioka 活性汚泥法における汚染値低減方法
US5052347A (en) * 1989-08-11 1991-10-01 Soltech, Inc. Water heater construction
US5141647A (en) * 1991-12-27 1992-08-25 Bhadra Amal K Control of odor and septicity of sewage
US5350516A (en) * 1991-12-27 1994-09-27 Bhadra Amal K Control of odor and septicity and purification of sewage and wastewater
US6019900A (en) * 1998-08-03 2000-02-01 The Regents Of The University Of California Single stage denitrification anaerobic digestion
US20050161410A1 (en) * 2003-11-06 2005-07-28 Wilson Gregg L. System, method and composition for treatment of wastewater

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB962237A (en) * 1961-04-19 1964-07-01 British Petroleum Co Improvements relating to the oxidation of sulphides in aqueous solutions
DE1275036B (de) * 1964-07-23 1968-08-14 Dr Yun Kyong Shin Verfahren zur raschen und quantitativen Herstellung waessriger Sulfatloesungen aus Sulfitloesungen durch Oxydation mit Sauerstoff oder sauerstoffhaltigen Gasen
US3718732A (en) * 1971-01-13 1973-02-27 Virginia Chemicals Inc Method of recovering chemical values from a formate-sodium hydrosulfite reaction mixture
US3627676A (en) * 1971-02-25 1971-12-14 Martin Marietta Corp Method for oxidizing the thiosulfate ions in a thiosulfate

Also Published As

Publication number Publication date
DE2439149A1 (de) 1975-02-27
FI62811C (fi) 1983-03-10
NO142294C (no) 1980-07-30
FI240674A (pt) 1975-02-16
JPS5039674A (pt) 1975-04-11
NO142294B (no) 1980-04-21
CA1028432A (en) 1978-03-21
GB1455047A (en) 1976-11-10
NL7410852A (nl) 1975-02-18
SE401363B (sv) 1978-05-02
US3962073A (en) 1976-06-08
FI62811B (fi) 1982-11-30
NO742919L (pt) 1975-03-17
BE818892A (fr) 1974-12-02
FR2240891A1 (pt) 1975-03-14
SE7410310L (pt) 1975-02-17
FR2240891B1 (pt) 1982-07-02
JPS5341464B2 (pt) 1978-11-02

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