JPS5710384A - Cod treating process for bentonite muddy water - Google Patents
Cod treating process for bentonite muddy waterInfo
- Publication number
- JPS5710384A JPS5710384A JP8259580A JP8259580A JPS5710384A JP S5710384 A JPS5710384 A JP S5710384A JP 8259580 A JP8259580 A JP 8259580A JP 8259580 A JP8259580 A JP 8259580A JP S5710384 A JPS5710384 A JP S5710384A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- water
- sent
- cod
- iron
- 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
Landscapes
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
PURPOSE: To decrease the content of COD in the waste water to ≤10ppm, by oxydation-depositing COD elements contained in the waste water which is freed of bentonite and added with oxidizing agent and iron salt, while pH value of the water being kept as ≤5pH and setting deposited iron salt of COD elements accompanied with iron hydroxide.
CONSTITUTION: The waste water, after removing of the bentonite contained in wasted muddy water, is sent to an oxidizing tank 1 and added there with sodium hydrochlorite as an oxidizing agent A and iron salt as a flocculant B. In this case, the waste water is agitated for 3min while pH value of the water being kept at around 30 and carboxyl-methylene-cellulose and sodium sulphonate in the waste water are oxidized and decomposed so as to easily flocculate to iron salt. Then, the treated waste water is sent to a flocculation tank 2 and added there with 5% caustic soda solution C so that fibrous iron chlorides can be deposited from the water under the condition of 4W4.5pH value and settled accompanied with iron hydroxide. The waste water is then sent to a settling tank 3 and separated there into sediments E and supernatant water F which is neutralized in a neutralization tank 4 and sent to a filter machine 5 for removing SS contents.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8259580A JPS5710384A (en) | 1980-06-18 | 1980-06-18 | Cod treating process for bentonite muddy water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8259580A JPS5710384A (en) | 1980-06-18 | 1980-06-18 | Cod treating process for bentonite muddy water |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5710384A true JPS5710384A (en) | 1982-01-19 |
Family
ID=13778833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8259580A Pending JPS5710384A (en) | 1980-06-18 | 1980-06-18 | Cod treating process for bentonite muddy water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5710384A (en) |
-
1980
- 1980-06-18 JP JP8259580A patent/JPS5710384A/en active Pending
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