EP 0991596 A1 20000412 - A PROCESS AND A PLANT FOR TREATMENT OF LANDFILL LEACHATES
Title (en)
A PROCESS AND A PLANT FOR TREATMENT OF LANDFILL LEACHATES
Title (de)
PROZESS UND ANLAGE ZUR BEHANDLUNG VON DEPONIESICKERWÄSSERN
Title (fr)
PROCEDE ET INSTALLATION PERMETTANT DE TRAITER LES LIXIVIATS DE DECHARGES
Publication
Application
Priority
IT 9700137 W 19970617
Abstract (en)
[origin: WO9857898A1] Leachates from sanitary landfills and waste water liquid in general are depurated and converted into clear water (19), ammonium sulphate (24) and polluted mud by gradually heating the liquid, raising its pH (5) to precipitate heavy metals (6), stripping ammonia (7), lowering the pH by treatment with CaCl2 (8), neutralising and precipitating further metals and impurities (14), and evaporating (17; 18; 15; 27) the water into steam that is condensed while gradually heating the incoming liquid.
IPC 1-7
IPC 8 full level
B01D 1/28 (2006.01); C02F 1/04 (2006.01); C02F 1/58 (2006.01); C02F 1/66 (2006.01)
CPC (source: EP)
B01D 1/2846 (2013.01); C02F 1/048 (2013.01); C02F 1/586 (2013.01); C02F 1/66 (2013.01); C02F 2103/06 (2013.01)
Citation (search report)
See references of WO 9857898A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
DOCDB simple family (application)
IT 9700137 W 19970617; EP 97928426 A 19970617