NO980210L - Process for treating activated sludge excess - Google Patents

Process for treating activated sludge excess

Info

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
Application number
NO980210A
Other languages
Norwegian (no)
Other versions
NO980210D0 (en
Inventor
Vladimir Pavlovich Groudinine
Alexandre Vladimiro Groudinine
Original Assignee
Vladimir Pavlovich Groudinine
Alexandre Vladimiro Groudinine
Anisimov Alexandre Pavlovich
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vladimir Pavlovich Groudinine, Alexandre Vladimiro Groudinine, Anisimov Alexandre Pavlovich filed Critical Vladimir Pavlovich Groudinine
Publication of NO980210L publication Critical patent/NO980210L/en
Publication of NO980210D0 publication Critical patent/NO980210D0/en

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.The present invention relates to a process for treating precipitates formed by biological purification of municipal and industrial wastewater and can be applied to various fields of industry, especially in paper and pulp production. A pre-thickened excess of activated sludge is treated with hatch sludge provided by the corrosive green liquor state in the production of sulfate wood pulp during stirring. Air sludge is used in a volume ratio to the excess of the activated sludge equal to 1: 5 - 10. Then the sludge is dehydrated by filtration, preferably at a temperature of between 75 and 104 ° C. The dehydrated precipitate is dried and incinerated. A residual product of ash obtained as well as a clear alkaline hydrolysis! used in the production of sludge wood pulp. The present process for treating an excess that activated sludge allows intensification of the filtration process, avoiding the use of expensive chemical reagents, a complete use of the products obtained by treating the sludge as well as the use of the waste from the production of sulphate wood pulp, i.e., sludge sludge. , with simplification of production procedures and technology and a significant reduction in material costs.

NO980210A 1995-07-18 1998-01-16 Process for treating activated sludge excess NO980210D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU9595112218A RU2079454C1 (en) 1995-07-18 1995-07-18 Method of processing excessive activated sludge
PCT/RU1996/000032 WO1997003928A1 (en) 1995-07-18 1996-02-12 Process for treating a surplus activated sludge

Publications (2)

Publication Number Publication Date
NO980210L true NO980210L (en) 1998-01-16
NO980210D0 NO980210D0 (en) 1998-01-16

Family

ID=20170155

Family Applications (1)

Application Number Title Priority Date Filing Date
NO980210A NO980210D0 (en) 1995-07-18 1998-01-16 Process for treating activated sludge excess

Country Status (11)

Country Link
EP (1) EP0842125A1 (en)
JP (1) JPH11510090A (en)
KR (1) KR19990028251A (en)
CN (1) CN1196033A (en)
AU (1) AU4680296A (en)
BR (1) BR9609736A (en)
CA (1) CA2224683A1 (en)
FI (1) FI980091A (en)
NO (1) NO980210D0 (en)
RU (1) RU2079454C1 (en)
WO (1) WO1997003928A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1295399C (en) * 2003-12-01 2007-01-17 中国农业科学院土壤肥料研究所 Technology of repairing rock dome using mixed polymer of daily sludge and waste plastics
CA2854292A1 (en) * 2011-11-04 2013-05-10 Valmet Ab Method for the causticizing process for producing white liquor
CN102491618A (en) * 2011-11-29 2012-06-13 曾秀仪 Depth dehydration method for residual sludge
CN106396308B (en) * 2016-10-27 2019-12-31 环境保护部华南环境科学研究所 Recycling method of residual activated sludge
CN109279758B (en) * 2018-11-21 2021-08-10 湖南骏泰新材料科技有限责任公司 Efficient green mud washing method
CN110424179B (en) * 2019-08-26 2021-09-21 华南理工大学 Method for modifying solid waste after incineration of papermaking sludge to be used as papermaking filler
CN112726252B (en) * 2020-11-30 2022-11-25 山东华泰纸业股份有限公司 Comprehensive utilization method of waste residues in paper mill
CN112796144A (en) * 2020-12-28 2021-05-14 山东泗水金立得纸业有限公司 Method for recycling kaolin from sludge of carbon-free copy paper production line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2410394A1 (en) * 1973-03-07 1974-09-12 Andco Inc PROCESS FOR DRAINING AN AQUATIC SLUDGE OF DISPERSED, FINELY CRUSHED SOLIDS
US4030968A (en) * 1975-12-22 1977-06-21 Consolidated-Bathurst Limited Disposal of paper pulp mill sludge
NL7707081A (en) * 1977-06-27 1978-12-29 Stamicarbon METHOD FOR THE BIOLOGICAL PURIFICATION OF WASTE WATER.
FI73253C (en) * 1979-11-20 1987-09-10 Vn Proizv Ob Celljuloszno FOERFARANDE FOER AOTERVINNING AV MATERIAL I AVLOPPSVATTEN.
SU1038287A1 (en) * 1979-11-20 1983-08-30 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Method of treating excessive active slurry

Also Published As

Publication number Publication date
RU2079454C1 (en) 1997-05-20
CA2224683A1 (en) 1997-02-06
FI980091A0 (en) 1998-01-16
KR19990028251A (en) 1999-04-15
AU4680296A (en) 1997-02-18
CN1196033A (en) 1998-10-14
EP0842125A1 (en) 1998-05-20
NO980210D0 (en) 1998-01-16
JPH11510090A (en) 1999-09-07
WO1997003928A1 (en) 1997-02-06
FI980091A (en) 1998-01-16
BR9609736A (en) 1999-12-21

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