JPS558818A - Washing of precipitated sand in waste water treatment - Google Patents
Washing of precipitated sand in waste water treatmentInfo
- Publication number
- JPS558818A JPS558818A JP8063778A JP8063778A JPS558818A JP S558818 A JPS558818 A JP S558818A JP 8063778 A JP8063778 A JP 8063778A JP 8063778 A JP8063778 A JP 8063778A JP S558818 A JPS558818 A JP S558818A
- Authority
- JP
- Japan
- Prior art keywords
- precipitated
- sands
- washing
- treated water
- filter
- 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
Abstract
PURPOSE: Resource by washing precipitated sands and simultaneously simplification and sureness of a third treatment by passing second treated water through the precipitated sands after separating dusts and organic substances, filtering and washing the precipitated sands, or by back-washing them.
CONSTITUTION: Dusts present in the precipitated sands in sewage are separated by mean of screens 1,6, and then organic substances are stripped by mean of a drum washer 7, etc. The precipitated sands are placed on the supporting bed 15 of a filter 14, and the precipitated sands are let to be a filter medium 16. The treated water which is subjected to a second treatment after separating the precipitated sands, is introduced in large quantities into the filter 14 over a long period of time. During filtration, floated substances are separated. The treated water is fed to a third treating water tank 19. If the inside pressure of filter 14 is elevated due to the presence of the floated substances, a blower 20 and a pump 21 are operated and back-washing is carried out by the third treated water. The precipitated sands are purified tore-use for aggregate, etc. and at the same time the third treatment is carried out simply and surely.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8063778A JPS558818A (en) | 1978-07-03 | 1978-07-03 | Washing of precipitated sand in waste water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8063778A JPS558818A (en) | 1978-07-03 | 1978-07-03 | Washing of precipitated sand in waste water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS558818A true JPS558818A (en) | 1980-01-22 |
Family
ID=13723877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8063778A Pending JPS558818A (en) | 1978-07-03 | 1978-07-03 | Washing of precipitated sand in waste water treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS558818A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5340770A (en) * | 1992-10-23 | 1994-08-23 | Ncr Corporation | Method of making a shallow junction by using first and second SOG layers |
| US5455185A (en) * | 1991-02-08 | 1995-10-03 | Siemens Aktiengesellschaft | Method for manufacturing a bipolar transistor having base and collector in a vertical sequence |
| US5541121A (en) * | 1995-01-30 | 1996-07-30 | Texas Instruments Incorporated | Reduced resistance base contact method for single polysilicon bipolar transistors using extrinsic base diffusion from a diffusion source dielectric layer |
| CN109879620A (en) * | 2019-04-24 | 2019-06-14 | 日昌升集团有限公司 | A kind of energy and water saving type sandstone aggregate water wash system and application method |
-
1978
- 1978-07-03 JP JP8063778A patent/JPS558818A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455185A (en) * | 1991-02-08 | 1995-10-03 | Siemens Aktiengesellschaft | Method for manufacturing a bipolar transistor having base and collector in a vertical sequence |
| US5340770A (en) * | 1992-10-23 | 1994-08-23 | Ncr Corporation | Method of making a shallow junction by using first and second SOG layers |
| US5541121A (en) * | 1995-01-30 | 1996-07-30 | Texas Instruments Incorporated | Reduced resistance base contact method for single polysilicon bipolar transistors using extrinsic base diffusion from a diffusion source dielectric layer |
| CN109879620A (en) * | 2019-04-24 | 2019-06-14 | 日昌升集团有限公司 | A kind of energy and water saving type sandstone aggregate water wash system and application method |
| CN109879620B (en) * | 2019-04-24 | 2021-07-30 | 日昌升集团有限公司 | Using method of water-saving and energy-saving sand stone aggregate washing system |
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