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Machine translation
1. (WO1997039982) METHODS OF TREATING WASTEWATER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/039982    International Application No.:    PCT/US1997/006734
Publication Date: 30.10.1997 International Filing Date: 18.04.1997
Chapter 2 Demand Filed:    17.11.1997    
IPC:
C02F 1/56 (2006.01)
Applicants: NORTH CAROLINA STATE UNIVERSITY [US/US]; 103 Holladay Hall, Campus Box 7003, Raleigh, NC 27695-7003 (US) (For All Designated States Except US).
HOECHST CELANESE CORPORATION [US/US]; P.O. Box 32414, Charlotte, NC 28232-6085 (US) (For All Designated States Except US).
CARBONELL, Ruben, G. [US/US]; (US) (For US Only).
CHEN, Li, Ang [BR/US]; (US) (For US Only).
SERAD, George, A. [US/US]; (US) (For US Only)
Inventors: CARBONELL, Ruben, G.; (US).
CHEN, Li, Ang; (US).
SERAD, George, A.; (US)
Agent: SIBLEY, Kenneth, D.; P.O. Box 37428, Raleigh, NC 27627 (US)
Priority Data:
08/635,445 19.04.1996 US
Title (EN) METHODS OF TREATING WASTEWATER
(FR) PROCEDES DE TRAITEMENT D'EAUX USEES
Abstract: front page image
(EN)The present invention provides methods of treating or clarifying a turbid wastewater containing a least one contaminant selected from the group consisting of proteinaceous materials, fats, oils, and other biological contaminants. The methods of the present invention include the steps of (a) contacting turbid wastewater to cellulose ester fibrets under conditions sufficient to flocculate the contaminant to form a treatment suspension, and then (b) separating the flocculants from the treatment suspension to provide a clarified wastewater.
(FR)Procédés de traitement ou de clarification d'eaux usées troubles contenant au moins un contaminant appartenant au groupe constitué de matériaux protéiniques, de graisses, d'huiles et d'autre contaminants biologiques. Les procédés de la présente invention consistent (a) à mettre en contact les eaux usées troubles avec des fibres d'ester de cellulose dans des conditions suffisantes pour provoquer la floculation du contaminant afin de former une suspension de traitement et ensuite (b) à séparer les flocons de la suspension de traitement pour obtenir des eaux usées clarifiées.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN.
African Regional Intellectual Property Organization (GH, KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)