ATA202191A - METHOD FOR TREATING WASTE - Google Patents
METHOD FOR TREATING WASTEInfo
- Publication number
- ATA202191A ATA202191A AT202191A AT202191A ATA202191A AT A202191 A ATA202191 A AT A202191A AT 202191 A AT202191 A AT 202191A AT 202191 A AT202191 A AT 202191A AT A202191 A ATA202191 A AT A202191A
- Authority
- AT
- Austria
- Prior art keywords
- liquid phase
- waste materials
- residual water
- separated
- solid phase
- Prior art date
Links
Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a process for treating waste materials such as sludges and dusts which comprise heavy metals, pathogenic microbes and/or other pollutants and organic constituents, in which the waste materials are mixed with a concentrated mineral acid to achieve a pH of zero and are then mechanically separated into a solid phase and a liquid phase, the liquid phase is adjusted to a pH of about 7 by addition of lime and the resultant precipitated-out solids are mechanically separated off and optionally supplied to a landfill or to further processing, and the remaining liquid phase is separated osmotically into pure water and into residual water comprising various constituents, which residual water is fed to the solid phase from the first mechanical separation and the resultant suspension is if appropriate further treated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT202191A AT406472B (en) | 1991-10-10 | 1991-10-10 | Process for treating waste materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT202191A AT406472B (en) | 1991-10-10 | 1991-10-10 | Process for treating waste materials |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA202191A true ATA202191A (en) | 1994-12-15 |
AT406472B AT406472B (en) | 2000-05-25 |
Family
ID=3526096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT202191A AT406472B (en) | 1991-10-10 | 1991-10-10 | Process for treating waste materials |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT406472B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2835763A1 (en) * | 1978-08-16 | 1980-02-28 | Kraftwerk Union Ag | PROCESSES FOR PURIFYING CONTAMINATED WASTEWATER CONTAINING TENSIDS AND DETERGENTS |
DE2920054A1 (en) * | 1979-05-18 | 1980-11-20 | Steinmueller Gmbh L & C | METHOD FOR PRE-TREATING RAW WATER FOR REVERSOSMOSE SYSTEMS |
-
1991
- 1991-10-10 AT AT202191A patent/AT406472B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AT406472B (en) | 2000-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
ELJ | Ceased due to non-payment of the annual fee |