JP2000325710A5 - - Google Patents
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- Publication number
- JP2000325710A5 JP2000325710A5 JP1999144137A JP14413799A JP2000325710A5 JP 2000325710 A5 JP2000325710 A5 JP 2000325710A5 JP 1999144137 A JP1999144137 A JP 1999144137A JP 14413799 A JP14413799 A JP 14413799A JP 2000325710 A5 JP2000325710 A5 JP 2000325710A5
- Authority
- JP
- Japan
- Prior art keywords
- water
- minutes
- backwash
- filter layer
- 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.)
- Granted
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001914 filtration Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005429 turbidity Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Description
「実験条件」
・原水流量：２３．６ｍ3／ｄ
・混和槽１０：滞留時間４分
・傾斜板沈殿槽２２：滞留時間４０分、上昇速度５ｃｍ／ｍｉｎ
・ろ過器２４仕様：φ５００ｍｍ×Ｈ４０００ｍｍ（ろ過面積０．１９６ｍ2）
・ろ過速度（ＬＶ：空塔速度）：５ｍ／ｈ（１２０ｍ／ｄ）
・ろ層２４ｂのろ材：活性アルミナ（比重１．５、有効径１．０ｍｍ、均等係数１．４、ろ層高４００ｍｍ）
・ろ層２４ａのろ材：ケイ砂（比重２．５、有効径０．６ｍｍ、均等係数１．４、ろ層高３００ｍｍ）
・通水時間：４８時間（タイマーにより洗浄開始）
・原水濁度：８〜３０度
・原水ｐＨ：７．２〜７．５
・ろ過処理水ｐＨ：６．９〜７．３
・凝集剤：ＰＡＣ（ポリ塩化アルミニウム）１０〜３０ｍｇ／ｌ
・目標処理水濁度：０．１度未満
・洗浄条件：（ｉ）水逆洗 ＬＶ＝４０ｍ／ｈ×４分、（ｉｉ）酸性水逆洗 ＬＶ＝４０ｍ／ｈ×３分、（ｉｉｉ）水逆洗 ＬＶ＝４０ｍ／ｈ×３分（すすぎ）
・逆洗水：中性水はろ過処理水（ｐＨ６．９〜７．３）、酸性水は硫酸にてｐＨ４．０に調整した。
"Experiment conditions"
・ Raw water flow rate: 23.6 m 3 / d
-Mixing tank 10: residence time 4 minutes-Inclined plate sedimentation tank 22: residence time 40 minutes, rising speed 5 cm / min
・ Filter 24 specification: φ500mm × H4000mm (filtration area 0.196m 2 )
-Filtration speed (LV: superficial tower speed): 5 m / h (120 m / d)
-Filter medium of the filter layer 24b: activated alumina (specific gravity 1.5, effective diameter 1.0mm, uniformity coefficient 1.4, filter layer height 400mm)
-Filter material of the filter layer 24a: silica sand (specific gravity 2.5, effective diameter 0.6mm, uniformity coefficient 1.4, filter layer height 300mm)
・ Water flow time: 48 hours (washing started by timer)
-Raw water turbidity: 8 to 30 degrees-Raw water pH: 7.2 to 7.5
-Filtration water pH: 6.9-7.3
Flocculant: PAC (polyaluminum chloride) 10 to 30 mg / l
-Target treated water turbidity: less than 0.1 degree-Cleaning conditions: (i) water backwash LV = 40 m / h x 4 minutes, (ii) acid water backwash LV = 40 m / h x 3 minutes, (iii) Water backwash LV = 40m / h x 3 minutes (rinse)
-Backwash water: neutral water was adjusted to pH 4.0 with filtered water (pH 6.9 to 7.3), and acidic water was adjusted to pH 4.0 with sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14413799A JP4176915B2 (en) | 1999-05-24 | 1999-05-24 | Solid-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14413799A JP4176915B2 (en) | 1999-05-24 | 1999-05-24 | Solid-liquid separator |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000325710A JP2000325710A (en) | 2000-11-28 |
| JP2000325710A5 true JP2000325710A5 (en) | 2006-03-30 |
| JP4176915B2 JP4176915B2 (en) | 2008-11-05 |
Family
ID=15355091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14413799A Expired - Fee Related JP4176915B2 (en) | 1999-05-24 | 1999-05-24 | Solid-liquid separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4176915B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4918703B2 (en) * | 2007-02-27 | 2012-04-18 | 日本ソリッド株式会社 | Muddy water treatment method |
| JP5351406B2 (en) * | 2007-10-10 | 2013-11-27 | オルガノ株式会社 | Aggregation filtration treatment method and aggregation filtration treatment apparatus |
| JP4763670B2 (en) * | 2007-10-11 | 2011-08-31 | オルガノ株式会社 | Filtration device |
| JP5951984B2 (en) * | 2011-12-27 | 2016-07-13 | 日鉄住金環境株式会社 | Biological treatment method of organic wastewater |
| KR101527005B1 (en) * | 2014-10-06 | 2015-06-09 | 주식회사 에코빅 | A pollutant purification apparatus |
| CN105983273B (en) * | 2015-02-17 | 2018-05-01 | 刘朝南 | A kind of activity suspended filter material and preparation method thereof |
| CN104998466B (en) * | 2015-08-20 | 2017-03-29 | 崔学烈 | A kind of water process lightweight filter medium and its preparation method and application |
| JP7089345B2 (en) * | 2017-05-25 | 2022-06-22 | 株式会社 イージーエス | Water treatment method and water treatment equipment |
| JP7256644B2 (en) * | 2019-01-15 | 2023-04-12 | 株式会社ディスコ | Waste liquid treatment equipment |
| CN114053774B (en) * | 2022-01-18 | 2022-04-08 | 山东省烟台地质工程勘察院 | Hydraulic ring geological sample separating device |
-
1999
- 1999-05-24 JP JP14413799A patent/JP4176915B2/en not_active Expired - Fee Related
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