JPH0317560B2 - - Google Patents
Info
- Publication number
- JPH0317560B2 JPH0317560B2 JP63299496A JP29949688A JPH0317560B2 JP H0317560 B2 JPH0317560 B2 JP H0317560B2 JP 63299496 A JP63299496 A JP 63299496A JP 29949688 A JP29949688 A JP 29949688A JP H0317560 B2 JPH0317560 B2 JP H0317560B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- activated sludge
- treatment
- nitrification
- denitrification
- 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 - Lifetime
Links
- 239000010802 sludge Substances 0.000 claims description 86
- 238000011282 treatment Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 25
- 239000012535 impurity Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000010800 human waste Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000356 contaminant Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000005273 aeration Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 235000019645 odor Nutrition 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 229920006317 cationic polymer Polymers 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000852 hydrogen donor Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63299496A JPH01274900A (ja) | 1988-11-29 | 1988-11-29 | 汚泥の脱水方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63299496A JPH01274900A (ja) | 1988-11-29 | 1988-11-29 | 汚泥の脱水方法 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9412879A Division JPS5617690A (en) | 1979-07-24 | 1979-07-24 | Dehydrating method for sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01274900A JPH01274900A (ja) | 1989-11-02 |
| JPH0317560B2 true JPH0317560B2 (enrdf_load_stackoverflow) | 1991-03-08 |
Family
ID=17873327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63299496A Granted JPH01274900A (ja) | 1988-11-29 | 1988-11-29 | 汚泥の脱水方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01274900A (enrdf_load_stackoverflow) |
-
1988
- 1988-11-29 JP JP63299496A patent/JPH01274900A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01274900A (ja) | 1989-11-02 |
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