JPS5753288A - Neutralization and solid-liquid separation in treatment of waste water - Google Patents
Neutralization and solid-liquid separation in treatment of waste waterInfo
- Publication number
- JPS5753288A JPS5753288A JP12773980A JP12773980A JPS5753288A JP S5753288 A JPS5753288 A JP S5753288A JP 12773980 A JP12773980 A JP 12773980A JP 12773980 A JP12773980 A JP 12773980A JP S5753288 A JPS5753288 A JP S5753288A
- Authority
- JP
- Japan
- Prior art keywords
- precipitate
- vessel
- solid
- liquid separation
- neutralization
- 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
- 238000000926 separation method Methods 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 title abstract 5
- 238000006386 neutralization reaction Methods 0.000 title abstract 5
- 239000002351 wastewater Substances 0.000 title abstract 2
- 239000002244 precipitate Substances 0.000 abstract 7
- 239000000725 suspension Substances 0.000 abstract 3
- 239000002245 particle Substances 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
PURPOSE: To improve settling characteristics of precipitate and to enhance the purification effect of a supernatant and the separation effect of the precipitate, by feeding the precipitate concentrated in a solid-liquid separation vessel into a neutralization vessel, and adding a flocculant to suspension on the way of feeding it into the solid-liquid separation vessel.
CONSTITUTION: A passage 3 for treated suspension (a) and a circulating pipe 4 for precipitate (b) are communicated between a neutralization vessel 1 and a solid- liquid separation vessel 2, to form a circulating system. Waste water fed into the neutralization vessel 1 is neutralized under aeration with pressurized air from an injection pip1 1' during a period when it comes in contact with a proper amount of the precipitate (b) repeatedly fed through the circulating pipe 4 and a neutralizer (d) properly added from a reserving tank 9, so that the precipitate particles grow. While the suspension (a) treated in the neutralization vessel 1 passes through the passage 3, its particles are coagulated by a high-molecular flocculant fed from a dissolving vessel 6. Thereafter, the precipitate is settled in the solid-liquid separation vessle 2. According to this method, load on a sludge-reserving pool or the like is reduced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12773980A JPS5753288A (en) | 1980-09-13 | 1980-09-13 | Neutralization and solid-liquid separation in treatment of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12773980A JPS5753288A (en) | 1980-09-13 | 1980-09-13 | Neutralization and solid-liquid separation in treatment of waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5753288A true JPS5753288A (en) | 1982-03-30 |
Family
ID=14967477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12773980A Pending JPS5753288A (en) | 1980-09-13 | 1980-09-13 | Neutralization and solid-liquid separation in treatment of waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5753288A (en) |
-
1980
- 1980-09-13 JP JP12773980A patent/JPS5753288A/en active Pending
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