UA93952C2 - Process for stabilization of aerotank work - Google Patents
Process for stabilization of aerotank workInfo
- Publication number
- UA93952C2 UA93952C2 UAA200911464A UAA200911464A UA93952C2 UA 93952 C2 UA93952 C2 UA 93952C2 UA A200911464 A UAA200911464 A UA A200911464A UA A200911464 A UAA200911464 A UA A200911464A UA 93952 C2 UA93952 C2 UA 93952C2
- Authority
- UA
- Ukraine
- Prior art keywords
- sludge
- work
- microorganisms
- water
- aerotank
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention relates to the treatment of industrial and waste water, particularly to the methods for the biological aerobic purification of water from organic substances by microorganisms of active sludge, and can be used for stabilization of work of biological sewage disposal plants with the use of aerotanks. The task of the invention – providing of stable work of aerotank, increasing of its oxidizing ability, support of sludge index at specification level, the elimination of the process of active sludge foaming and achievement of optimal development of biocenosis of microorganisms of active sludge. The process for stabilization of aerotank work is proposed, consisting of reagent treatment of water-sludge mixture before the secondary settler by magnesium salt and calcium hydroxide, at mass ratio of magnesium and calcium ions of 1: (1.1-1.3) and at рН 9.0-10.0, and regeneration of reverse sludge with its repeating treatment (3-4 times in a month) for 1-1.5 days by calcium hydroxide at pH 10.5-11.5. The realization of the proposed process provides high degree of water purification by BCK (10-25 mg О2/dm3), support of the sludge index at the level of 85-100 cm3/g and optimal species composition of microorganisms of active sludge with the elimination in it of the development process of thread bacteria and fungi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA200911464A UA93952C2 (en) | 2009-11-11 | 2009-11-11 | Process for stabilization of aerotank work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| UAA200911464A UA93952C2 (en) | 2009-11-11 | 2009-11-11 | Process for stabilization of aerotank work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA93952C2 true UA93952C2 (en) | 2011-03-25 |
Family
ID=50831591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UAA200911464A UA93952C2 (en) | 2009-11-11 | 2009-11-11 | Process for stabilization of aerotank work |
Country Status (1)
| Country | Link |
|---|---|
| UA (1) | UA93952C2 (en) |
-
2009
- 2009-11-11 UA UAA200911464A patent/UA93952C2/en unknown
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