HUT54950A - Process for chemical dephosphorizing and biological purifying waste waters - Google Patents
Process for chemical dephosphorizing and biological purifying waste watersInfo
- Publication number
- HUT54950A HUT54950A HU569388A HU569388A HUT54950A HU T54950 A HUT54950 A HU T54950A HU 569388 A HU569388 A HU 569388A HU 569388 A HU569388 A HU 569388A HU T54950 A HUT54950 A HU T54950A
- Authority
- HU
- Hungary
- Prior art keywords
- sludge
- forming body
- droplet forming
- following
- mins
- Prior art date
Links
Landscapes
- Activated Sludge Processes (AREA)
- Removal Of Specific Substances (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
P removal by chemical means during biological purificn. of effluent is undertaken following purificn. on a droplet forming body and prior to post-settling, and happens simultaneously with a short live sludge treatment. Most, if not all, biologically decomposable organic matter is removed on the droplet forming body. Following addn. of chemicals removal of P takes place in the presence of 300-600g/l live sludge and with simultaneous aeration. Sludge contact and aeration time is 5-60 mins.. - A pref. implementation of this process is to flocculate chemically treated live sludge mix at 10-70 per sec. velocity gradient for 5-20 mins., and/or to allow the sludge to settle in the post-settling section, and following 1-20 min. preaeration recirculate it to effluent purified on the droplet forming body. (1pp Dwg.No.0/1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU569388A HU204479B (en) | 1988-11-03 | 1988-11-03 | Process for biological purifying and chemical dephosphorinating waste waters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU569388A HU204479B (en) | 1988-11-03 | 1988-11-03 | Process for biological purifying and chemical dephosphorinating waste waters |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT54950A true HUT54950A (en) | 1991-04-29 |
HU204479B HU204479B (en) | 1992-01-28 |
Family
ID=10970600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU569388A HU204479B (en) | 1988-11-03 | 1988-11-03 | Process for biological purifying and chemical dephosphorinating waste waters |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU204479B (en) |
-
1988
- 1988-11-03 HU HU569388A patent/HU204479B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU204479B (en) | 1992-01-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HPC4 | Succession in title of patentee |
Owner name: ESZAKDUNANTULI VIZMUE RT., HU |
|
HMM4 | Cancellation of final prot. due to non-payment of fee |