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Showing results 1974 to 1993 of 2351
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- slags 1
- slowing-down 1
- sludges 1
- sodium sulfates 1
- Soils 2
- soils 5
- Sol-gel process 7
- sol-gel process 22
- solar energy 1
- Soledade 1
- solid solutions 2
- Solid Wastes 1
- solid wastes 10
- solidification 4
- solidification; waste processing 1
- solo 1
- solubility 1
- Solvent extraction 3
- solvent extraction 14
- solvents 1