JPS574287A - Treatment of organic waste water - Google Patents
Treatment of organic waste waterInfo
- Publication number
- JPS574287A JPS574287A JP7945080A JP7945080A JPS574287A JP S574287 A JPS574287 A JP S574287A JP 7945080 A JP7945080 A JP 7945080A JP 7945080 A JP7945080 A JP 7945080A JP S574287 A JPS574287 A JP S574287A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- dehydrated
- concnd
- treatment process
- mineral acid
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 239000010815 organic waste Substances 0.000 title 1
- 239000010802 sludge Substances 0.000 abstract 5
- 239000002253 acid Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 3
- 239000011707 mineral Substances 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 150000002506 iron compounds Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000008719 thickening Effects 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To save inorg. flocculants and lower the moisture contents of dehydrated cake by adding a mineral acid to at least one of the sludges produced in a biological treatment process and a flocculation treatment process, then adding an oxidizer and further dehydrating the same.
CONSTITUTION: The excess sludge 7 and concnd. sludge 8-1 from a biological treatment process are concnd. in a thickening process such as a gravity concentrating device or the like, after which they are added with a mineral acid 10 such as sulfuric acid in an acid treating tank 9, so that the iron compounds and aluminum compounds in the concnd. sludge 8-2 are dissolved. Thence, it is subjected to oxidation reaction treatment by being added with an oxidizer 12 such as hydrogen peroxide in the 1st chemical oxidation tank 11, after which the effluent sludge is dehydrated by a dehydrator 13, whereby it is separated to dehydated cake 14 and dehydrated and separated water 15. The dehydrated and separated water 15 is recycled as it is to a flocculator 5, and is reused as a flocculant. It is preferable to add a mineral acid 23 to the effluent sludge prior to the above-described dehydration.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7945080A JPS574287A (en) | 1980-06-12 | 1980-06-12 | Treatment of organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7945080A JPS574287A (en) | 1980-06-12 | 1980-06-12 | Treatment of organic waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS574287A true JPS574287A (en) | 1982-01-09 |
| JPH0155920B2 JPH0155920B2 (en) | 1989-11-28 |
Family
ID=13690212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7945080A Granted JPS574287A (en) | 1980-06-12 | 1980-06-12 | Treatment of organic waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07136408A (en) * | 1993-11-17 | 1995-05-30 | Kankyo Eng Kk | Wastewater treatment method |
| JP2016047490A (en) * | 2014-08-27 | 2016-04-07 | 水ｉｎｇ株式会社 | Oil- and fat-containing wastewater treatment method and apparatus |
| WO2020165765A1 (en) * | 2019-02-12 | 2020-08-20 | Paulee Cleantec Ltd. | Organic waste treatment process |
-
1980
- 1980-06-12 JP JP7945080A patent/JPS574287A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07136408A (en) * | 1993-11-17 | 1995-05-30 | Kankyo Eng Kk | Wastewater treatment method |
| JP2016047490A (en) * | 2014-08-27 | 2016-04-07 | 水ｉｎｇ株式会社 | Oil- and fat-containing wastewater treatment method and apparatus |
| WO2020165765A1 (en) * | 2019-02-12 | 2020-08-20 | Paulee Cleantec Ltd. | Organic waste treatment process |
| US12065369B2 (en) | 2019-02-12 | 2024-08-20 | Paulee Cleantec Ltd. | Organic waste treatment process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0155920B2 (en) | 1989-11-28 |
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