JPS54127871A - Recovery of chemicals used in regeneration in purified water manufacturing apparatus - Google Patents
Recovery of chemicals used in regeneration in purified water manufacturing apparatusInfo
- Publication number
- JPS54127871A JPS54127871A JP3622778A JP3622778A JPS54127871A JP S54127871 A JPS54127871 A JP S54127871A JP 3622778 A JP3622778 A JP 3622778A JP 3622778 A JP3622778 A JP 3622778A JP S54127871 A JPS54127871 A JP S54127871A
- Authority
- JP
- Japan
- Prior art keywords
- regeneration
- waste water
- subsequent
- early period
- manufacturing apparatus
- 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
- Treatment Of Water By Ion Exchange (AREA)
Abstract
PURPOSE: To cut down on the costs of chemicals and waste water treatment without impairing the regenerating capability by reusing part of waste water for regeneration in the early period of the subsequent regeneration when the regeneration of purified water manufacturing apparatus is made.
CONSTITUTION: The hydrochloric acid 11 for regeneration is passed through the cation exchange resion tower 2 for a certain time, and when the concentration of Ca2+ and Mg2+ in waste water falls down rapidly, the waste water is stored in the recovery tank 15 by the timer 13 and then reused for the regeneration of the exchange tower 2 through the piping 16 in the early period of subsequent regenerating operation. In the same way, in the anion exchange tower 3, the waste water, when the concentration of Cl- and So-2 4 in NaOH solution for regeneration drops abruptly, is stored in the recovery tank 15' by the timer 13' and then reused in the early period of subsequent regenerating operation. Thus, chemicals for regeneration can be greatly reduced and the amount of waste water can be decreased without impairing the regenerating capability, so that neutralizing agent for waste water can also be reduced and waste water treatment cost can be curtailed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3622778A JPS54127871A (en) | 1978-03-28 | 1978-03-28 | Recovery of chemicals used in regeneration in purified water manufacturing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3622778A JPS54127871A (en) | 1978-03-28 | 1978-03-28 | Recovery of chemicals used in regeneration in purified water manufacturing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54127871A true JPS54127871A (en) | 1979-10-04 |
Family
ID=12463881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3622778A Pending JPS54127871A (en) | 1978-03-28 | 1978-03-28 | Recovery of chemicals used in regeneration in purified water manufacturing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54127871A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919549A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Reduction of low-electric conductive liquid waste during regeneration of ion-exchange resin and apparatus therefor |
| JPS5919550A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Reduction of high-electric conductive liquid waste during regeneration of ion-exchange resin and apparatus therefor |
| JPS5919551A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Retrenchment of regenerating agent during regeneration of ion-exchange resin, reduction of total solid part and apparatus therefor |
| JP2017023932A (en) * | 2015-07-22 | 2017-02-02 | 前澤工業株式会社 | Ion-exchange resin regeneration method |
-
1978
- 1978-03-28 JP JP3622778A patent/JPS54127871A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919549A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Reduction of low-electric conductive liquid waste during regeneration of ion-exchange resin and apparatus therefor |
| JPS5919550A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Reduction of high-electric conductive liquid waste during regeneration of ion-exchange resin and apparatus therefor |
| JPS5919551A (en) * | 1982-07-23 | 1984-02-01 | Ebara Corp | Retrenchment of regenerating agent during regeneration of ion-exchange resin, reduction of total solid part and apparatus therefor |
| JPH0339743B2 (en) * | 1982-07-23 | 1991-06-14 | Ebara Seisakusho Kk | |
| JP2017023932A (en) * | 2015-07-22 | 2017-02-02 | 前澤工業株式会社 | Ion-exchange resin regeneration method |
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