FR791990A - Device for the production of scum for waste water clarification plants by the flotation process using scum - Google Patents

Device for the production of scum for waste water clarification plants by the flotation process using scum

Info

Publication number: FR791990A
Authority: FR; France
Prior art keywords: scum; production; waste water; flotation process; water clarification
Prior art date: 1935-01-08
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.): Expired

Application number

Other languages

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.)

BWS Technologie GmbH

Original Assignee

Maschinenfabrik Buckau R Wolf AG

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.)

1935-01-08

Filing date

1935-07-02

Publication date

1935-12-20

1935-07-02 Application filed by Maschinenfabrik Buckau R Wolf AG filed Critical Maschinenfabrik Buckau R Wolf AG

1935-12-20 Application granted granted Critical

1935-12-20 Publication of FR791990A publication Critical patent/FR791990A/en

Status Expired legal-status Critical Current

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
- C02F1/24—Treatment of water, waste water, or sewage by flotation

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)
Separation Of Suspended Particles By Flocculating Agents (AREA)
Physical Water Treatments (AREA)

FR791990D 1935-01-08 1935-07-02 Device for the production of scum for waste water clarification plants by the flotation process using scum Expired FR791990A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEM129687D DE662868C (en)	1935-01-08	1935-01-08	Process for clearing industrial and urban waste water

Publications (1)

Publication Number	Publication Date
FR791990A true FR791990A (en)	1935-12-20

Family

ID=28798222

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR791990D Expired FR791990A (en)	1935-01-08	1935-07-02	Device for the production of scum for waste water clarification plants by the flotation process using scum

Country Status (6)

Country	Link
BE (1)	BE410202A (en)
DE (1)	DE662868C (en)
DK (1)	DK53258C (en)
FR (1)	FR791990A (en)
GB (1)	GB451202A (en)
NL (1)	NL42350C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2477671A (en) *	1944-11-29	1949-08-02	Diamond Alkali Co	Purification of alkylation mixtures
DE2939813A1 (en) *	1979-08-29	1981-04-02	BBC AG Brown, Boveri & Cie., Baden, Aargau	FLOTATION METHOD FOR WASTEWATER PURIFICATION

0
- NL NL42350D patent/NL42350C/xx active
- BE BE410202D patent/BE410202A/xx unknown
1935
- 1935-01-08 DE DEM129687D patent/DE662868C/en not_active Expired
- 1935-07-02 FR FR791990D patent/FR791990A/en not_active Expired
- 1935-12-18 DK DK53258D patent/DK53258C/en active
1936
- 1936-01-06 GB GB475/36A patent/GB451202A/en not_active Expired

Also Published As

Publication number	Publication date
BE410202A (en)
GB451202A (en)	1936-07-31
DK53258C (en)	1937-06-21
NL42350C (en)
DE662868C (en)	1938-07-23

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