NO980210L - Fremgangsmåte for å behandle overskudd av aktivert slam - Google Patents
Fremgangsmåte for å behandle overskudd av aktivert slamInfo
- Publication number
- NO980210L NO980210L NO980210A NO980210A NO980210L NO 980210 L NO980210 L NO 980210L NO 980210 A NO980210 A NO 980210A NO 980210 A NO980210 A NO 980210A NO 980210 L NO980210 L NO 980210L
- Authority
- NO
- Norway
- Prior art keywords
- sludge
- production
- excess
- treating
- activated sludge
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Foreliggende oppfinnelse omhandler en fremgangsmåte for å behandle bunnfall dannet ved biologisk rensing av kommunalt og industrielt avfallsvann og kan anvendes på ulike felt innen industrien, spesielt innen papir og tremasse-produksjon. Et pre-fortykket overskudd av aktivert slam behandles med lutslam som tilveiebringes ved den etsende grønnlut-tilstanden i produksjonen av sulfat-tremasse under røring. Lutslam anvendes i et volumforhold til overskuddet av det aktiverte slammet lik l : 5 - 10. Deretter dehydreres slammet ved filtrering, foretrukket ved en temperatur på mellom 75 og 104°C. Det dehydrerte bunnfallet tørkes og forbrennes. Et rest-produkt av aske som oppnås såvel som et klaret alkalisk hydrolysa! anvendes ved produksjonen av slufat-tremasse. Foreliggende fremgangsmåte for å behandle et overskudd at aktivert slam tillater intensifisering av filtreringsprosessen, hvor man unngår anvendelse av dyre kjemiske reagensmidler, en fullstendig anvendelse av produktene som oppnås ved behandling av slammet såvel som anvendelse av avfallet av produksjonen av sulfat-tremasse, dvs. lutslam, med forenkling av produksjonsprosedyrene og teknikken og en vesentlig reduksjon av materialkostnadene.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU9595112218A RU2079454C1 (ru) | 1995-07-18 | 1995-07-18 | Способ обработки избыточного активного ила |
PCT/RU1996/000032 WO1997003928A1 (en) | 1995-07-18 | 1996-02-12 | Process for treating a surplus activated sludge |
Publications (2)
Publication Number | Publication Date |
---|---|
NO980210D0 NO980210D0 (no) | 1998-01-16 |
NO980210L true NO980210L (no) | 1998-01-16 |
Family
ID=20170155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO980210A NO980210L (no) | 1995-07-18 | 1998-01-16 | Fremgangsmåte for å behandle overskudd av aktivert slam |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0842125A1 (no) |
JP (1) | JPH11510090A (no) |
KR (1) | KR19990028251A (no) |
CN (1) | CN1196033A (no) |
AU (1) | AU4680296A (no) |
BR (1) | BR9609736A (no) |
CA (1) | CA2224683A1 (no) |
FI (1) | FI980091A0 (no) |
NO (1) | NO980210L (no) |
RU (1) | RU2079454C1 (no) |
WO (1) | WO1997003928A1 (no) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1295399C (zh) * | 2003-12-01 | 2007-01-17 | 中国农业科学院土壤肥料研究所 | 生活污泥-废弃塑料混聚物修复岩石坡面技术 |
CN104066885B (zh) * | 2011-11-04 | 2015-10-21 | 维美德公司 | 苛化工艺制备白液的方法 |
CN102491618A (zh) * | 2011-11-29 | 2012-06-13 | 曾秀仪 | 一种剩余污泥的深度脱水方法 |
CN106396308B (zh) * | 2016-10-27 | 2019-12-31 | 环境保护部华南环境科学研究所 | 一种剩余活性污泥的回收利用方法 |
CN109279758B (zh) * | 2018-11-21 | 2021-08-10 | 湖南骏泰新材料科技有限责任公司 | 一种绿泥高效洗涤方法 |
CN110424179B (zh) * | 2019-08-26 | 2021-09-21 | 华南理工大学 | 一种造纸污泥焚烧后固废改性用作造纸填料的方法 |
CN112726252B (zh) * | 2020-11-30 | 2022-11-25 | 山东华泰纸业股份有限公司 | 一种造纸厂废渣的综合利用方法 |
CN112796144A (zh) * | 2020-12-28 | 2021-05-14 | 山东泗水金立得纸业有限公司 | 一种无碳复写纸产线污泥回收高岭土的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2410394A1 (de) * | 1973-03-07 | 1974-09-12 | Andco Inc | Verfahren zum entwaessern eines waessrigen schlamms dispergierten, fein zerkleinerten feststoffes |
US4030968A (en) * | 1975-12-22 | 1977-06-21 | Consolidated-Bathurst Limited | Disposal of paper pulp mill sludge |
NL7707081A (nl) * | 1977-06-27 | 1978-12-29 | Stamicarbon | Werkwijze voor het biologisch zuiveren van afvalwater. |
SU1038287A1 (ru) * | 1979-11-20 | 1983-08-30 | Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности | Способ обработки избыточного активного ила |
FI73253C (fi) * | 1979-11-20 | 1987-09-10 | Vn Proizv Ob Celljuloszno | Foerfarande foer aotervinning av material i avloppsvatten. |
-
1995
- 1995-07-18 RU RU9595112218A patent/RU2079454C1/ru active
-
1996
- 1996-02-12 CA CA002224683A patent/CA2224683A1/en not_active Abandoned
- 1996-02-12 WO PCT/RU1996/000032 patent/WO1997003928A1/en active IP Right Grant
- 1996-02-12 JP JP9506587A patent/JPH11510090A/ja active Pending
- 1996-02-12 KR KR1019970709562A patent/KR19990028251A/ko active IP Right Grant
- 1996-02-12 EP EP96902522A patent/EP0842125A1/en not_active Withdrawn
- 1996-02-12 BR BR9609736-1A patent/BR9609736A/pt not_active Application Discontinuation
- 1996-02-12 AU AU46802/96A patent/AU4680296A/en not_active Abandoned
- 1996-02-12 CN CN96196796A patent/CN1196033A/zh active Pending
-
1998
- 1998-01-16 NO NO980210A patent/NO980210L/no unknown
- 1998-01-16 FI FI980091A patent/FI980091A0/fi unknown
Also Published As
Publication number | Publication date |
---|---|
RU2079454C1 (ru) | 1997-05-20 |
JPH11510090A (ja) | 1999-09-07 |
AU4680296A (en) | 1997-02-18 |
KR19990028251A (ko) | 1999-04-15 |
CN1196033A (zh) | 1998-10-14 |
CA2224683A1 (en) | 1997-02-06 |
NO980210D0 (no) | 1998-01-16 |
BR9609736A (pt) | 1999-12-21 |
WO1997003928A1 (en) | 1997-02-06 |
EP0842125A1 (en) | 1998-05-20 |
FI980091A (fi) | 1998-01-16 |
FI980091A0 (fi) | 1998-01-16 |
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