Glossary entry (derived from question below)
Portuguese term or phrase:
Projetos de sistemas de espigotamento de rejeitos
English translation:
tailings spigot discharge systems design
Portuguese term
Brazil
Brazilian lawyer - 40+ years in Brazil
Native in: English (Variants: Scottish, British, UK, Irish, US, Australian, Canadian, New Zealand) 
, Portuguese (Variants: Brazilian, Mozambican, Angolan, European/Portugal) 
Works in: Portuguese to English, English to Portuguese, English, and 1 more.
Projetos de sistemas de espigotamento de rejeitos
| 3 | tailings spingot discharge systems project |
Charles R. Castleberry
|
| 4 +1 | tailing spigotting system design |
Mario Freitas
|
Jan 15, 2016 17:25: Mario Freitas Created KOG entry
Jan 30, 2016 14:22: Mario Freitas changed "Edited KOG entry" from "<a href="/profile/799114">Mario Freitas's</a> old entry - "Projetos de sistemas de espigotamento de rejeitos"" to ""tailings spigot discharge systems design""
Proposed translations
United States
Business, Legal & Financial Translation
Native in: English (Variant: US)
Works in: Portuguese to English
tailings spingot discharge systems project
Brazil
32 years engineering/law/contracts
Native in: English (Variant: US) , Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English
Discussion
2. The tailings come from the benificiation plant, not from the dam construction process. It is the leftover slurry from the process plant.
3. Spigotting is a method of spreading, compacting or stacking the tailings in the reservoir.