UST102905I4 - Control of sulfides in aqueous systems - Google Patents

Control of sulfides in aqueous systems Download PDF

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Publication number
UST102905I4
UST102905I4 US06/308,625 US30862581A UST102905I4 US T102905 I4 UST102905 I4 US T102905I4 US 30862581 A US30862581 A US 30862581A US T102905 I4 UST102905 I4 US T102905I4
Authority
US
United States
Prior art keywords
forms
additives
sulfides
peroxygen
oxidize
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.)
Pending
Application number
US06/308,625
Inventor
William H. Kibbel, Jr.
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.)
FMC Corp
Original Assignee
FMC 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 FMC Corp filed Critical FMC Corp
Priority to US06/308,625 priority Critical patent/UST102905I4/en
Assigned to FMC CORPORATION, A CORP. OF DE. reassignment FMC CORPORATION, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KIBBEL, WILLIAM H. JR.
Priority to ES516182A priority patent/ES8308804A1/en
Priority to JP57174087A priority patent/JPS603871B2/en
Application granted granted Critical
Publication of UST102905I4 publication Critical patent/UST102905I4/en
Pending legal-status Critical Current

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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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Solid peroxygens may be compressed into shaped forms with or without additives to regulate the dissolving rate of the forms. Use of such peroxygen forms provides a simple and inexpensive method to dispense active oxygen and an alkali into a solution over a predetermined time to oxidize sulfides to sulfates and thus to reduce the chemical oxygen demand. Sodium carbonate peroxide and sodium perborate are two commercial peroxygen compounds particularly useful for this application as they provide both the active oxygen to oxidize the sulfide, and the alkalinity required to raise the pH of the solution to pH 8 or greater, thus preventing the formation of elemental sulfur. In addition, the two compounds are compatible with additives, such as carboxymethylcellulose and methylcellulose, which are useful in regulating the dissolution rate, as well as soda ash, which can be used to provide additional alkalinity.
US06/308,625 1981-10-05 1981-10-05 Control of sulfides in aqueous systems Pending UST102905I4 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US06/308,625 UST102905I4 (en) 1981-10-05 1981-10-05 Control of sulfides in aqueous systems
ES516182A ES8308804A1 (en) 1981-10-05 1982-10-04 Control of sulfides in aqueous systems
JP57174087A JPS603871B2 (en) 1981-10-05 1982-10-05 Method for adjusting sulfide in aqueous systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/308,625 UST102905I4 (en) 1981-10-05 1981-10-05 Control of sulfides in aqueous systems

Publications (1)

Publication Number Publication Date
UST102905I4 true UST102905I4 (en) 1983-04-05

Family

ID=23194725

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/308,625 Pending UST102905I4 (en) 1981-10-05 1981-10-05 Control of sulfides in aqueous systems

Country Status (3)

Country Link
US (1) UST102905I4 (en)
JP (1) JPS603871B2 (en)
ES (1) ES8308804A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207925A (en) * 1991-03-27 1993-05-04 Degussa Aktiengesellschaft Process for the detoxification of cyanide-containing aqueous solutions
US7291276B1 (en) * 2004-06-21 2007-11-06 Winston Company, Inc. Controlled production and release of oxygen activated biocide into holding tanks for RV's, boats and the like

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5940047B2 (en) * 2013-12-25 2016-06-29 株式会社Ｔｉｏ技研 Waste water purification material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207925A (en) * 1991-03-27 1993-05-04 Degussa Aktiengesellschaft Process for the detoxification of cyanide-containing aqueous solutions
US7291276B1 (en) * 2004-06-21 2007-11-06 Winston Company, Inc. Controlled production and release of oxygen activated biocide into holding tanks for RV's, boats and the like

Also Published As

Publication number Publication date
ES516182A0 (en) 1983-10-01
JPS5879591A (en) 1983-05-13
JPS603871B2 (en) 1985-01-31
ES8308804A1 (en) 1983-10-01

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