FR2363524A1 - Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant - Google Patents

Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant

Info

Publication number
FR2363524A1
FR2363524A1 FR7627069A FR7627069A FR2363524A1 FR 2363524 A1 FR2363524 A1 FR 2363524A1 FR 7627069 A FR7627069 A FR 7627069A FR 7627069 A FR7627069 A FR 7627069A FR 2363524 A1 FR2363524 A1 FR 2363524A1
Authority
FR
France
Prior art keywords
drum
flocculating
filter
sludge
plant
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
FR7627069A
Other languages
French (fr)
Other versions
FR2363524B1 (en
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.)
Hanssen Et Cie SA Const Meca P
Original Assignee
Hanssen Et Cie SA Const Meca P
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 Hanssen Et Cie SA Const Meca P filed Critical Hanssen Et Cie SA Const Meca P
Priority to FR7627069A priority Critical patent/FR2363524A1/en
Publication of FR2363524A1 publication Critical patent/FR2363524A1/en
Application granted granted Critical
Publication of FR2363524B1 publication Critical patent/FR2363524B1/fr
Granted 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
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/123—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using belt or band filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/03—Processes of filtration using flocculating agents

Abstract

Thesludge is received into a primary flocculating, rotary drum inside, a coaxial contra-rotating filter drum. The flocculating drum delivers into a pre-dehydrating, rotary drum from which sludge is spread via a distributor onto an endless first filter band. The loaded, first filter band is lapped around the filter drum under pressure of an outer, driving filter band. This first pair of filter bands delivers to successive filter bands, zig-zag lapped between pressure rollers to achieve adequate drainage. The flocculating drum pref. has central, coaxial inlet and outlet and is supplied with a mixt. of sludge and flocculating agent. Filtrate passing into the filter drum via perforations in its circumference is pref. discharged to the sides of the drum by deflectors. Paddles are pref. provided on the exterior of the flocculating drum to assist lateral discharge of filtrate. Used for dehydrating sludge discharged from waste water purificn. processes. The installation is inexpensive to install and simple and cheap to run, requiring negligible maintenance. It produces a dehydrated prod. of desirable homogeneity, density etc. It eliminates a supplementary flocculation station. The design lends itself to a packaged, mobile construction which could be used at several sites.
FR7627069A 1976-09-03 1976-09-03 Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant Granted FR2363524A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7627069A FR2363524A1 (en) 1976-09-03 1976-09-03 Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7627069A FR2363524A1 (en) 1976-09-03 1976-09-03 Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant

Publications (2)

Publication Number Publication Date
FR2363524A1 true FR2363524A1 (en) 1978-03-31
FR2363524B1 FR2363524B1 (en) 1979-01-12

Family

ID=9177508

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627069A Granted FR2363524A1 (en) 1976-09-03 1976-09-03 Flocculating and draining sludge from effluent purificn. plant - in low cost low energy potentially mobile filter plant

Country Status (1)

Country Link
FR (1) FR2363524A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392422A (en) * 1980-06-25 1983-07-12 Axel Johnson Engineering Ab Apparatus for removing liquid from a suspension
US4906369A (en) * 1986-10-21 1990-03-06 Baehr Albert Apparatus for dewatering sludge and similar substances
CN112897742A (en) * 2021-01-20 2021-06-04 常兴丽 Domestic sewage filters deposits device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4392422A (en) * 1980-06-25 1983-07-12 Axel Johnson Engineering Ab Apparatus for removing liquid from a suspension
US4906369A (en) * 1986-10-21 1990-03-06 Baehr Albert Apparatus for dewatering sludge and similar substances
CN112897742A (en) * 2021-01-20 2021-06-04 常兴丽 Domestic sewage filters deposits device

Also Published As

Publication number Publication date
FR2363524B1 (en) 1979-01-12

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Legal Events

Date Code Title Description
ST Notification of lapse