JPS6339307B2 - - Google Patents
Info
- Publication number
- JPS6339307B2 JPS6339307B2 JP55071827A JP7182780A JPS6339307B2 JP S6339307 B2 JPS6339307 B2 JP S6339307B2 JP 55071827 A JP55071827 A JP 55071827A JP 7182780 A JP7182780 A JP 7182780A JP S6339307 B2 JPS6339307 B2 JP S6339307B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- coagulation
- flocculant
- cod
- added
- 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
- 239000010802 sludge Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000004062 sedimentation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 claims description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Chemical group 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000005345 coagulation Methods 0.000 claims description 7
- 230000015271 coagulation Effects 0.000 claims description 7
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 5
- 150000004692 metal hydroxides Chemical class 0.000 claims description 5
- 159000000014 iron salts Chemical class 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000003311 flocculating effect Effects 0.000 claims description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- 229910001424 calcium ion Inorganic materials 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 7
- 235000010755 mineral Nutrition 0.000 description 7
- 238000005189 flocculation Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010013496 Disturbance in attention Diseases 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 229920006318 anionic polymer Polymers 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 150000001879 copper Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006864 oxidative decomposition reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910018626 Al(OH) Inorganic materials 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000010800 human waste Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7182780A JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7182780A JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56168879A JPS56168879A (en) | 1981-12-25 |
| JPS6339307B2 true JPS6339307B2 (no) | 1988-08-04 |
Family
ID=13471764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7182780A Granted JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56168879A (no) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020170343A1 (ja) | 2019-02-19 | 2020-08-27 | 株式会社五十嵐電機製作所 | 汎用型ロータリーエンコーダ及びそれを用いたサーボモータ |
| WO2021090372A1 (ja) | 2019-11-05 | 2021-05-14 | 株式会社五十嵐電機製作所 | 汎用型ロータリーエンコーダ |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2297321A (en) * | 1995-01-25 | 1996-07-31 | Air Prod & Chem | Method for treating water |
| GB2297322A (en) * | 1995-01-25 | 1996-07-31 | Air Prod & Chem | Method for treating industrial effluent |
| JP4879590B2 (ja) * | 2006-01-24 | 2012-02-22 | オルガノ株式会社 | 汚泥の濃縮減容化方法及び装置 |
| AU2013298635B2 (en) * | 2012-07-31 | 2016-04-07 | Basf Se | Concentration of suspensions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244052A (en) * | 1975-10-03 | 1977-04-06 | Hitachi Ltd | Factory waste water processing method |
| JPS5398153A (en) * | 1977-02-08 | 1978-08-28 | Jgc Corp | Method of treating sludge exuded foul water |
-
1980
- 1980-05-29 JP JP7182780A patent/JPS56168879A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244052A (en) * | 1975-10-03 | 1977-04-06 | Hitachi Ltd | Factory waste water processing method |
| JPS5398153A (en) * | 1977-02-08 | 1978-08-28 | Jgc Corp | Method of treating sludge exuded foul water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020170343A1 (ja) | 2019-02-19 | 2020-08-27 | 株式会社五十嵐電機製作所 | 汎用型ロータリーエンコーダ及びそれを用いたサーボモータ |
| KR20200103529A (ko) | 2019-02-19 | 2020-09-02 | 가부시키가이샤 이가라시덴키세이사쿠쇼 | 범용형 로터리 인코더 및 그것을 사용한 서보모터 |
| WO2021090372A1 (ja) | 2019-11-05 | 2021-05-14 | 株式会社五十嵐電機製作所 | 汎用型ロータリーエンコーダ |
| KR20210056948A (ko) | 2019-11-05 | 2021-05-20 | 가부시키가이샤 이가라시덴키세이사쿠쇼 | 범용형 로터리 인코더 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56168879A (en) | 1981-12-25 |
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