JPS54136750A - Sewage system disposal process - Google Patents
Sewage system disposal processInfo
- Publication number
- JPS54136750A JPS54136750A JP4466178A JP4466178A JPS54136750A JP S54136750 A JPS54136750 A JP S54136750A JP 4466178 A JP4466178 A JP 4466178A JP 4466178 A JP4466178 A JP 4466178A JP S54136750 A JPS54136750 A JP S54136750A
- Authority
- JP
- Japan
- Prior art keywords
- nitrifying
- reaction
- alkaline agent
- calcium
- limes
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000010865 sewage Substances 0.000 title abstract 2
- 230000001546 nitrifying effect Effects 0.000 abstract 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 3
- 239000000920 calcium hydroxide Substances 0.000 abstract 3
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 2
- 240000006909 Tilia x europaea Species 0.000 abstract 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 2
- 239000004571 lime Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 241000894006 Bacteria Species 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 abstract 1
- 230000001079 digestive effect Effects 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Abstract
PURPOSE: To save a cost, to promote a digestive reaction, and to reduce a color of processed water, by using limes, such as calcium hydroxide etc., as an alkaline agent in a nitrifying process which denitrifies biologically swage system sludge.
CONSTITUTION: Ammonia in sewage 1 is nitrified into a nitric oxide matter in a nitrifying bath 3. At that time the nitrifying reaction means an acid-making reaction, and pH will lower gradually. But, since an optimum pH of nitrification bacteria is 6 to 9.5, it is maintained within the optimum pH by adding an alkaline agent. Limes, such as unslaked lime, slaked lime etc., are used as the alkaline agent. Carbonic acid in nitrifying process in difused in a gaseous state, a nitrifying reaction can be promoted, and a color composition in processed water can be cleared off due to a synergism of a physical and chemical action of calcium in calcium hydroxide and a microbic action without any fear for scale sedimentation of a calcium carbonate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4466178A JPS54136750A (en) | 1978-04-15 | 1978-04-15 | Sewage system disposal process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4466178A JPS54136750A (en) | 1978-04-15 | 1978-04-15 | Sewage system disposal process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54136750A true JPS54136750A (en) | 1979-10-24 |
Family
ID=12697620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4466178A Pending JPS54136750A (en) | 1978-04-15 | 1978-04-15 | Sewage system disposal process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54136750A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123598A (en) * | 1982-12-28 | 1984-07-17 | Showa Denko Kk | Biological denitrifying method of organic sewage |
-
1978
- 1978-04-15 JP JP4466178A patent/JPS54136750A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59123598A (en) * | 1982-12-28 | 1984-07-17 | Showa Denko Kk | Biological denitrifying method of organic sewage |
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