JPS55142600A - Treating method of excretion purifying tank sludge - Google Patents
Treating method of excretion purifying tank sludgeInfo
- Publication number
- JPS55142600A JPS55142600A JP5108779A JP5108779A JPS55142600A JP S55142600 A JPS55142600 A JP S55142600A JP 5108779 A JP5108779 A JP 5108779A JP 5108779 A JP5108779 A JP 5108779A JP S55142600 A JPS55142600 A JP S55142600A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- tank
- purifying tank
- excretion
- liquid
- 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.)
- Granted
Links
- 239000010802 sludge Substances 0.000 title abstract 8
- 230000029142 excretion Effects 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 239000007788 liquid Substances 0.000 abstract 7
- 239000008394 flocculating agent Substances 0.000 abstract 3
- 238000005273 aeration Methods 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To attain rational treatment of a purifying tank by a method wherein a sludge of an excretion purifying tank and a treated liquid of raw excretion are mixed and, after biologically treated, a high molecular flocculating agent is added to carry out the solid-liquid separation.
CONSTITUTION: The collected excretion 1 is flowed into an unaerobic digesting tank 2 without being mixed the sludge of a purifying tank and the sludge 3 of a purifying tank 3 is blended into a digested and separated liquid 4. Thereafter, both liquids are treated in an aeration tank 5 and an effluent liquid is flowed into a precipitation basin 6 and the concentrated sludge 7 is recycled to an aeration tank 5. Subsequently, an excessive sludge 8 is appropriately blended into an overflowed water and a cationic high molecular flocculating agent 9 is added to the formed slurry, thereafter said slurry is directly subjected to dehydrating treatment by a dehydrator 10. Therefore, because the sludge of a purifying tank is blended into a digested and treated liquid, a functional obstruction of a digesting tank is eliminated and, moreover, by a rational operation of a sludge treating procedure, an amount of an inorganic flocculating agent added to a succeeding flocculating and precipitating procedure of a dehydrated separated liquid can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5108779A JPS55142600A (en) | 1979-04-25 | 1979-04-25 | Treating method of excretion purifying tank sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5108779A JPS55142600A (en) | 1979-04-25 | 1979-04-25 | Treating method of excretion purifying tank sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55142600A true JPS55142600A (en) | 1980-11-07 |
| JPS6245000B2 JPS6245000B2 (en) | 1987-09-24 |
Family
ID=12877028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5108779A Granted JPS55142600A (en) | 1979-04-25 | 1979-04-25 | Treating method of excretion purifying tank sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55142600A (en) |
-
1979
- 1979-04-25 JP JP5108779A patent/JPS55142600A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245000B2 (en) | 1987-09-24 |
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