English AGROVOC

uf Water disinfection
NT Water desalting
RT Disinfection
RT Filtration
RT Ozonization
RT Purification
RT Reverse osmosis
RT Wastewater treatment
RT Water pollution
RT Water quality
RT Water reuse
RT Water supply
(Lao)
   ການເຮັດໃຫ້ນ້ຳບໍລິສຸດ
(French)
   Purification de l'eau
(Spanish)
   Purificación del agua