Global patent index - EP 1084083 A2

EP 1084083 A2 2001-03-21 - FILTERING PLANT FOR WASTE WATER

Title (en)

FILTERING PLANT FOR WASTE WATER

Title (de)

SCHMUTZWASSER-REINIGUNGSANLAGE

Title (fr)

INSTALLATION DE FILTRAGE D'EAUX USEES

Publication

EP 1084083 A2 (EN)

Application

EP 99943497 A

Priority

  • NO 9900191 W
  • NO 982737 A

Abstract (en)

[origin: WO9967173A2] This invention comprises a purification plant for purifying waste water and recycling water from a small group of households, agricultural units, cabins and the like. If the plant receives only grey water, the plant should purify it to such an extent that the water can be re-used for watering, washing, flushing of toilets, etc. If the plant receives black water, the plant should purify it to such an extent that the effluent can be safely discharged into the environment. The plant is divided into three main parts; a sludge interceptor, a main filter with vertical unsaturated aerobic flow at the top and saturated anaerobic flow at the bottom of the filter, and a final filter with horizontal saturated anaerobic flow. As a final treatment the water is disinfected in order to remove bacteria. The filter plant is equipped with one or more buffer zones and overflow pipes between the main parts in order to give the plant the capacity to absorb extraordinary loads without untreated waste water running out into the environment.

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

C02F 3/30; C02F 1/32; C02F 9/00

IPC 8 full level (invention and additional information)

C02F 3/12 (2006.01); C02F 3/30 (2006.01); C02F 1/32 (2006.01); C02F 1/78 (2006.01)

CPC (invention and additional information)

C02F 3/1242 (2013.01); C02F 3/30 (2013.01); C02F 1/32 (2013.01); C02F 1/78 (2013.01); Y02W 10/15 (2015.05)

Citation (search report)

See references of WO 9967173A3

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 9967173 A2 19991229; WO 9967173 A3 20000302; AU 5657299 A 20000110; CA 2334829 A1 19991229; EP 1084083 A2 20010321; NO 307653 B1 20000508; NO 982737 A 19991213; NO 982737 D0 19980612

INPADOC legal status

2002-12-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020608

2002-03-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020128

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001221

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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