Valsts valodas centra izstrādātie vides zinātņu, zemes zinātņu un fiziskās ģeogrāfijas termini

Konteksts: [..] Sludge which has undergone biological, chemical or heat treatment, long-term storage or any other appropriate process so as significantly to reduce its fermentability [..]
Avots: Council Directive 86/278/EEC of 12 June 1986 on the protection of the environment, and in particular of the soil, when sewage sludge is used in agriculture