EP 0000006 B1 19810204 - PROCESS FOR NITRIFICATION OF WASTE WATER
Title (en)
PROCESS FOR NITRIFICATION OF WASTE WATER
Publication
Application
Priority
NL 7706189 A 19770606
Abstract (en)
[origin: EP0000006A1] Process for the nitrification of waste water in a trickle phase reactor whereby the gas containing molecular oxygen contains more than 25% by weight of molecular oxygen, the off-gas in the column is vented and/or recycled, during the nitrification 0.5-10% by weight of CO2, with respect to the total quantity of molecular oxygen present, such a quantity of the liquid effluent of the reactor is recycled that the entire column contents are irrigated and the gas and the liquid contact each other counter-currently. This process can be used for the nitrification of industrial waste water, especially waste water of fertilizer plants.
IPC 1-7
IPC 8 full level
CPC (source: EP)
C02F 3/06 (2013.01); C02F 3/34 (2013.01); Y02W 10/10 (2015.05)
Designated contracting state (EPC)
BE DE FR GB NL SE
DOCDB simple family (publication)
EP 0000006 A1 19781220; EP 0000006 B1 19810204; DE 2860387 D1 19810319; NL 7706189 A 19781208
DOCDB simple family (application)
EP 78200030 A 19780601; DE 2860387 T 19780601; NL 7706189 A 19770606