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Zhang M, Hou J, Yang Z, Wu M, Wu J, Miao L. A new efficient tannin-based flocculant made by a new modification idea: multiple rounds of Mannich reaction with aminated tannins as ammonia chloride. Environ Sci Pollut Res Int. 2023 Mar;30(12):34996–5008. doi: 10.1007/s11356-022-24583-4. PMID: 36525193. |