Method for treating water by ballasted flocculation and decantation
The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated water in overflow and a mixture of s...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
19.05.2005
|
Edition | 7 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated water in overflow and a mixture of sludge and the ballast in underflow; conveying at least part of said mixture to a sludge/ballast separating system and recycling into or upstream of the flocculation zone the ballast and part of the sludge introduced in said separation system. The invention is characterized in that it comprises steps which consists in conveying the mixture to the sludge/ballast separating system; in subjecting said mixture to a ballast concentration, extracting the ballast from the sludge extracted from the separation system; and more than 20% of the volume entering the sludge/ballast separating system is recycled into or upstream of the flocculation zone, after passing through at least part of the sludge/ballast separation system; and the ballast has an effective diameter greater than 60 micrometers, and the sludge extracted from the treatment system has a concentration higher than 5 g/L. |
---|---|
AbstractList | The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in the presence and around a ballast; introducing the mixture in a decantation zone; separating the treated water in overflow and a mixture of sludge and the ballast in underflow; conveying at least part of said mixture to a sludge/ballast separating system and recycling into or upstream of the flocculation zone the ballast and part of the sludge introduced in said separation system. The invention is characterized in that it comprises steps which consists in conveying the mixture to the sludge/ballast separating system; in subjecting said mixture to a ballast concentration, extracting the ballast from the sludge extracted from the separation system; and more than 20% of the volume entering the sludge/ballast separating system is recycled into or upstream of the flocculation zone, after passing through at least part of the sludge/ballast separation system; and the ballast has an effective diameter greater than 60 micrometers, and the sludge extracted from the treatment system has a concentration higher than 5 g/L. |
Author | ZUBACK JOE DAHL CLAUS P BINOT PATRICK |
Author_xml | – fullname: DAHL CLAUS P – fullname: ZUBACK JOE – fullname: BINOT PATRICK |
BookMark | eNrjYmDJy89L5WRw9k0tychPUUjLL1IoKUpNLMnMS1coTyxJLVJIqlRISszJSSwuSQXK5-QnJ5fmAOXz8xQS81IUUlKTE_NKwHweBta0xJziVF4ozc2g7OYa4uyhm1qQH59aXJCYnJqXWhIfGmxkYGBqaGBsbmjpaGhMnCoAcfM1RA |
ContentType | Patent |
DBID | EVB |
DatabaseName | esp@cenet |
DatabaseTitleList | |
Database_xml | – sequence: 1 dbid: EVB name: esp@cenet url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP sourceTypes: Open Access Repository |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Medicine Chemistry Sciences |
Edition | 7 |
ExternalDocumentID | US2005103719A1 |
GroupedDBID | EVB |
ID | FETCH-epo_espacenet_US2005103719A13 |
IEDL.DBID | EVB |
IngestDate | Fri Jul 19 13:08:27 EDT 2024 |
IsOpenAccess | true |
IsPeerReviewed | false |
IsScholarly | false |
Language | English |
LinkModel | DirectLink |
MergedId | FETCHMERGED-epo_espacenet_US2005103719A13 |
Notes | Application Number: US20040499108 |
OpenAccessLink | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050519&DB=EPODOC&CC=US&NR=2005103719A1 |
ParticipantIDs | epo_espacenet_US2005103719A1 |
PublicationCentury | 2000 |
PublicationDate | 20050519 |
PublicationDateYYYYMMDD | 2005-05-19 |
PublicationDate_xml | – month: 05 year: 2005 text: 20050519 day: 19 |
PublicationDecade | 2000 |
PublicationYear | 2005 |
RelatedCompanies | OTV S.A |
RelatedCompanies_xml | – name: OTV S.A |
Score | 2.6240523 |
Snippet | The invention concerns a water treatment method which consists in introducing coagulated water in a flocculation zone, to enable flocculation of microflocs in... |
SourceID | epo |
SourceType | Open Access Repository |
SubjectTerms | APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
Title | Method for treating water by ballasted flocculation and decantation |
URI | https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20050519&DB=EPODOC&locale=&CC=US&NR=2005103719A1 |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_GFPVNp-LHlIDSt2LtF-ahiEtbhtBtuFX2NpImg4F0Y6sM_3svodU97S0fcCQhl9_lkvsdwCN3AuG60rEp7hjbDx1h81AENi0oAv4cUcEkm8gGYT_336fBtAVfTSyM4QndGnJE1KgC9b0y5_Xq34kVm7-VmyexwKblazqJYqu5HQfaIrHiXpSMhvGQWYxF-dgafJg-HRL3TN_wrnSgDWnNtJ989nRcymoXVNJTOByhvLI6g5YqO3DMmtxrHTjK6idvLNbatzkHlpl0zwTtTGI-iCPskC3KWBPxQ4R2iWvnJZkjQBV1Wi7CS0mk0gto6hfwkCYT1rdxNLO_yc_y8e7QvUtol8tSXQHhUqB1LH1EeDzthHyh3FOFS33lUe67zjV090m62d99CyeGpFTzlNIutKv1t7pD-K3EvVm1Xz4WiCs |
link.rule.ids | 230,309,786,891,25594,76903 |
linkProvider | European Patent Office |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV3dS8MwED_GFOebTsWPqQGlb8XaL81DEdeuVF274VrZW0naDgTpxlYZ_vdeQqt72ls-4EiOXH53l9wdwC3TLK7ruaZSPDGqaWtcZTa3VJpRBPwZooIsNhFGdpCYr1Nr2oKvJhZG5gldy-SIKFEZynsl7-vFvxPLk38rV3f8E4fmT37seEpjHVtCI1G8vjMYj7yRq7iuk0yU6F3OiZC4e_qMttLOAxqF0lj66Iu4lMUmqPgHsDtGemV1CK2i7ELHbWqvdWEvrJ-8sVlL3-oI3FCWeyaoZxL5QRxhh6yRxpLwH8KFS1w4L8kMASqry3IRVuYkLwQDZf8YbvxB7AYqrib923yaTDaXbpxAu5yXxSkQlnPUjnMTER5vO54_UmYUmU7NwqDM1LUz6G2jdL59-ho6QRwO0-FL9HYB-zJhqchZSnvQrpbfxSVCccWvJAd_AcEIixU |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Method+for+treating+water+by+ballasted+flocculation+and+decantation&rft.inventor=DAHL+CLAUS+P&rft.inventor=ZUBACK+JOE&rft.inventor=BINOT+PATRICK&rft.date=2005-05-19&rft.externalDBID=A1&rft.externalDocID=US2005103719A1 |