CA2114583A1 - Waste Activated Sludge Treatment System - Google Patents

Waste Activated Sludge Treatment System

Info

Publication number
CA2114583A1
CA2114583A1 CA2114583A CA2114583A CA2114583A1 CA 2114583 A1 CA2114583 A1 CA 2114583A1 CA 2114583 A CA2114583 A CA 2114583A CA 2114583 A CA2114583 A CA 2114583A CA 2114583 A1 CA2114583 A1 CA 2114583A1
Authority
CA
Canada
Prior art keywords
sludge
solubilization
destruction
biological
cell walls
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
CA2114583A
Other languages
French (fr)
Other versions
CA2114583C (en
Inventor
Francis William Sweet
Donald R. Manolescu
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.)
Z-TECH ENVIRONMENTAL Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002114583A priority Critical patent/CA2114583C/en
Publication of CA2114583A1 publication Critical patent/CA2114583A1/en
Application granted granted Critical
Publication of CA2114583C publication Critical patent/CA2114583C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

A process and apparatus to promote rupturing and destruction of biological cell walls for solubilization of biological sludge is provided. The process involves concentrating a sludge above an initial concentration by an evaporation process at the saturation temperature for the operating pressure, and a high shearing process applied to the concentrated solids. The invention also provides an apparatus to promote rupturing of biological cell walls for the destruction and solubilization of biological sludge, the apparatus with an evaporation region for concentrating sludge, a shearing region for rupturing the biological cell walls, and a sump region for receiving a feed stream of sludge and discharging a dewatered product stream. The process also provides a retention time for the destruction and solubilization to take place and providesfor the separation of water from the sludge for re-use.
CA002114583A 1994-01-31 1994-01-31 Waste activated sludge treatment system Expired - Fee Related CA2114583C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002114583A CA2114583C (en) 1994-01-31 1994-01-31 Waste activated sludge treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002114583A CA2114583C (en) 1994-01-31 1994-01-31 Waste activated sludge treatment system

Publications (2)

Publication Number Publication Date
CA2114583A1 true CA2114583A1 (en) 1995-08-01
CA2114583C CA2114583C (en) 1996-09-10

Family

ID=4152823

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002114583A Expired - Fee Related CA2114583C (en) 1994-01-31 1994-01-31 Waste activated sludge treatment system

Country Status (1)

Country Link
CA (1) CA2114583C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6808636B2 (en) 2000-06-01 2004-10-26 Lystek International Inc. Treatment of sewage sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6808636B2 (en) 2000-06-01 2004-10-26 Lystek International Inc. Treatment of sewage sludge

Also Published As

Publication number Publication date
CA2114583C (en) 1996-09-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed