Global Patent Index - EP 1086051 A1

EP 1086051 A1 2001-03-28 - AERATED POND WASTEWATER TREATMENT SYSTEM AND PROCESS

Title (en)

AERATED POND WASTEWATER TREATMENT SYSTEM AND PROCESS

Title (de)

ABWASSERBEHANDLUNGSPROZESS UND -SYSTEM IN BELÜFTETEM TEICH

Title (fr)

PROCEDE ET SYSTEME DE TRAITEMENT DES EAUX USEES D'UN ETANG AERE

Publication

EP 1086051 A1 (EN)

Application

EP 99921808 A

Priority

  • US 9910139 W
  • US 8959098 P

Abstract (en)

[origin: WO9965829A1] A four-pond wastewater treatment process for controlling algae and ammonia in the effluent stream is disclosed. A plurality of opaque modular cover casings (80, 81, 82, 83) are floated on some or all of the surface of the aeration pond, sedimentation pond, and polishing pond to block sunlight and thereby control algae growth and suspended solids. Attached growth biomedia is submerged in the aeration pond to enhance nitrification of ammonia.

IPC 1-7 (main, further and additional classification)

C02F 3/00; C02F 3/06; C02F 3/10

IPC 8 full level (invention and additional information)

C02F 3/02 (2006.01); C02F 3/06 (2006.01); C02F 3/10 (2006.01); C02F 7/00 (2006.01); E04H 4/08 (2006.01)

CPC (invention and additional information)

E04H 4/08 (2013.01); C02F 3/02 (2013.01); C02F 3/06 (2013.01); C02F 7/00 (2013.01); Y02W 10/15 (2015.05); Y02W 10/37 (2015.05)

Citation (search report)

See references of WO 9965829A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9965829 A1 19991223; AU 3892199 A 20000105; CA 2335697 A1 19991223; EP 1086051 A1 20010328; JP 2002518163 A 20020625

INPADOC legal status


2003-04-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20021001

2002-05-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020321

2001-03-28 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010111

2001-03-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE