JPS6394599U - - Google Patents
Info
- Publication number
- JPS6394599U JPS6394599U JP1986186762U JP18676286U JPS6394599U JP S6394599 U JPS6394599 U JP S6394599U JP 1986186762 U JP1986186762 U JP 1986186762U JP 18676286 U JP18676286 U JP 18676286U JP S6394599 U JPS6394599 U JP S6394599U
- Authority
- JP
- Japan
- Prior art keywords
- aeration tank
- oxygen concentration
- dissolved oxygen
- water temperature
- activated sludge
- 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
- 238000005273 aeration Methods 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 4
- 230000000241 respiratory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 239000010865 sewage Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
Description
第１図は本考案の一実施例の説明図、第２図は
活性汚泥の呼吸活性と温度との相関図、第３図は
ＢＯＤ，ＰＨ，水温が一定の条件下に於ける溶存
酸素濃度と酸素移動速度との相関図、第４図は処
理場流入水温の季節変化図を示す。 １…溶存酸素濃度目標値補正演算装置、２…溶
存酸素濃度目標値補正回路、３…溶存酸素濃度目
標値リミツター、４…曝気風量目標値演算回路、
５…曝気風量調節回路、６…曝気槽流入量流量計
、７…曝気槽、８…曝気槽水温計、９…曝気槽溶
存酸素濃度計、１０…曝気風量調節弁、１１…風
量計、１２…送風機。
活性汚泥の呼吸活性と温度との相関図、第３図は
ＢＯＤ，ＰＨ，水温が一定の条件下に於ける溶存
酸素濃度と酸素移動速度との相関図、第４図は処
理場流入水温の季節変化図を示す。 １…溶存酸素濃度目標値補正演算装置、２…溶
存酸素濃度目標値補正回路、３…溶存酸素濃度目
標値リミツター、４…曝気風量目標値演算回路、
５…曝気風量調節回路、６…曝気槽流入量流量計
、７…曝気槽、８…曝気槽水温計、９…曝気槽溶
存酸素濃度計、１０…曝気風量調節弁、１１…風
量計、１２…送風機。
Claims (1)
- 活性汚泥法による下水処理場で、曝気槽の溶存
酸素濃度目標設定値による曝気風量制御方式に於
いて、曝気槽の水温による活性汚泥の呼吸活性を
関数として持つ曝気槽水温による溶存酸素濃度目
標値補正回路を追加し構成することにより、活性
汚泥の呼吸活性に見合つた曝気風量制御を可能と
することを特徴とする曝気槽水温による溶存酸素
濃度制御の補正制御装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986186762U JPS6394599U (ja) | 1986-12-05 | 1986-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986186762U JPS6394599U (ja) | 1986-12-05 | 1986-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6394599U true JPS6394599U (ja) | 1988-06-18 |
Family
ID=31136614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986186762U Pending JPS6394599U (ja) | 1986-12-05 | 1986-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6394599U (ja) |
-
1986
- 1986-12-05 JP JP1986186762U patent/JPS6394599U/ja active Pending
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