JPH0233849Y2 - - Google Patents
Info
- Publication number
- JPH0233849Y2 JPH0233849Y2 JP5208086U JP5208086U JPH0233849Y2 JP H0233849 Y2 JPH0233849 Y2 JP H0233849Y2 JP 5208086 U JP5208086 U JP 5208086U JP 5208086 U JP5208086 U JP 5208086U JP H0233849 Y2 JPH0233849 Y2 JP H0233849Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- filtration
- surface washing
- pipe
- filtration layer
- 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.)
- Expired
Links
- 238000005406 washing Methods 0.000 claims description 55
- 238000001914 filtration Methods 0.000 claims description 53
- 238000004140 cleaning Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000011001 backwashing Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5208086U JPH0233849Y2 (enrdf_load_stackoverflow) | 1986-04-09 | 1986-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5208086U JPH0233849Y2 (enrdf_load_stackoverflow) | 1986-04-09 | 1986-04-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62170108U JPS62170108U (enrdf_load_stackoverflow) | 1987-10-28 |
| JPH0233849Y2 true JPH0233849Y2 (enrdf_load_stackoverflow) | 1990-09-11 |
Family
ID=30876928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5208086U Expired JPH0233849Y2 (enrdf_load_stackoverflow) | 1986-04-09 | 1986-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233849Y2 (enrdf_load_stackoverflow) |
-
1986
- 1986-04-09 JP JP5208086U patent/JPH0233849Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62170108U (enrdf_load_stackoverflow) | 1987-10-28 |
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