JPS55159140A - Sludge volume index measuring device - Google Patents
Sludge volume index measuring deviceInfo
- Publication number
- JPS55159140A JPS55159140A JP6708079A JP6708079A JPS55159140A JP S55159140 A JPS55159140 A JP S55159140A JP 6708079 A JP6708079 A JP 6708079A JP 6708079 A JP6708079 A JP 6708079A JP S55159140 A JPS55159140 A JP S55159140A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- measuring
- mlss
- way
- pipe
- 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
- 239000010802 sludge Substances 0.000 title abstract 13
- 239000007788 liquid Substances 0.000 abstract 5
- 238000005070 sampling Methods 0.000 abstract 3
- 238000005259 measurement Methods 0.000 abstract 2
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To make measurement highly accurate by providig a branch pipe on the way of the channel for sampling sludge liquid into the sedimented sludge volume measuring pipe and mounting an activated sludge suspended matter concentration measuring part to this branch pipe. CONSTITUTION:A branch pipe 41 is mounted on the way of a channel 40 which samples sludge liquid and the device is constituted by communicating an activated sludge suspended matter MLSS concentration measuring part with this. At the sampling of sludge into a sedimented sludge volume SV measuring pipe 5, the piston 50 of the MLSS measuring part is drawn out to sample the sludge liquid into an inside barrel 47 and the MLSS concentration is measured by way of an MLSS measuring circuit 16. On the other hand, the sludge liquid is precipitated in the SV measuring pipe 5 and the SV value is measured in an SV measuring circuit 28. This MLSS value and SV value are put into an arithmetic circuit 30, by which the sludge volume index is obtained. Since the MLSS concentration may be measured in this way without waiting for the end of the sludge liquid sampling into the SV measuring pipe, the measurement may be done while the sludge suspended matter is in an evenly dispersed state, hence its accuracy may be enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6708079A JPS5923379B2 (en) | 1979-05-30 | 1979-05-30 | Sludge capacity indicator measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6708079A JPS5923379B2 (en) | 1979-05-30 | 1979-05-30 | Sludge capacity indicator measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55159140A true JPS55159140A (en) | 1980-12-11 |
| JPS5923379B2 JPS5923379B2 (en) | 1984-06-01 |
Family
ID=13334529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6708079A Expired JPS5923379B2 (en) | 1979-05-30 | 1979-05-30 | Sludge capacity indicator measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5923379B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0412250A (en) * | 1990-04-28 | 1992-01-16 | Tsurumi Seiki:Kk | Measuring instrument for cod of water |
| US5335067A (en) * | 1992-09-29 | 1994-08-02 | The United States Of America As Represented By The United States Department Of Energy | Spectrophotometric probe |
-
1979
- 1979-05-30 JP JP6708079A patent/JPS5923379B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0412250A (en) * | 1990-04-28 | 1992-01-16 | Tsurumi Seiki:Kk | Measuring instrument for cod of water |
| US5335067A (en) * | 1992-09-29 | 1994-08-02 | The United States Of America As Represented By The United States Department Of Energy | Spectrophotometric probe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5923379B2 (en) | 1984-06-01 |
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