CA2033000A1 - Sewage sludge treatment with gas injection - Google Patents

Sewage sludge treatment with gas injection

Info

Publication number
CA2033000A1
CA2033000A1 CA2033000A CA2033000A CA2033000A1 CA 2033000 A1 CA2033000 A1 CA 2033000A1 CA 2033000 A CA2033000 A CA 2033000A CA 2033000 A CA2033000 A CA 2033000A CA 2033000 A1 CA2033000 A1 CA 2033000A1
Authority
CA
Canada
Prior art keywords
sludge
oxygen
adjusting
mixing
gas
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.)
Granted
Application number
CA2033000A
Other languages
French (fr)
Other versions
CA2033000C (en
Inventor
Charles A. Long, Jr.
Robert D. Blythe
William A. Cobb
Philip M. Grover
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.)
Long Enterprises Inc
Original Assignee
Long Enterprises Inc
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
Priority claimed from US07/539,112 external-priority patent/US5147563A/en
Application filed by Long Enterprises Inc filed Critical Long Enterprises Inc
Priority to CA002033000A priority Critical patent/CA2033000C/en
Publication of CA2033000A1 publication Critical patent/CA2033000A1/en
Application granted granted Critical
Publication of CA2033000C publication Critical patent/CA2033000C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Abstract

This invention relates to a sewage sludge treatment system resulting in an oxygenated and/or ozonated treated sludge containing substantially no pathogens. The system includes apparatus (10) and a process for mascerating raw sludge, adjusting the pH to about 2.5 to about 3, adjusting the solids content to about 2.5% to about 4%, adjusting the temperature, if necessary, to about 20°C to about 40°C, mixing an oxygen-rich gas, such as oxygen and/or ozone with the sludge as the sludge is mixed or recirculated through a hyperbaric vessel (12) and simultaneously injecting the oxygen-rich gas into a combination gas and sludge mixing and dispersing assembly (30) in an upper portion (16) of the hyperbaric vessel (12). Such injection causes mixing of the gas and sludge and dispersement of such mixture in a plurality of streams (76) to atomize and oxygenate the sludge.
CA002033000A 1990-06-15 1990-12-21 Sewage sludge treatment with gas injection Expired - Fee Related CA2033000C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002033000A CA2033000C (en) 1990-06-15 1990-12-21 Sewage sludge treatment with gas injection

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US539,112 1990-06-15
US07/539,112 US5147563A (en) 1989-09-01 1990-06-15 Sewage sludge treatment with gas injection
CA002033000A CA2033000C (en) 1990-06-15 1990-12-21 Sewage sludge treatment with gas injection

Publications (2)

Publication Number Publication Date
CA2033000A1 true CA2033000A1 (en) 1991-12-16
CA2033000C CA2033000C (en) 1999-03-23

Family

ID=25674423

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002033000A Expired - Fee Related CA2033000C (en) 1990-06-15 1990-12-21 Sewage sludge treatment with gas injection

Country Status (1)

Country Link
CA (1) CA2033000C (en)

Also Published As

Publication number Publication date
CA2033000C (en) 1999-03-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed