Pretreatment for seawater desalination by flocculation ...
2020-4-22 · The procedure of the preparation of modified poly ferric silicate (PFSi-δ) consisted of three processes: (i) preparation of polysalicic acid (PSiA) (ii) preparation of poly ferric silicate (PFSi) and (iii) modification of PFSi (PFSi-δ). Firstly, PSiA was prepared by acidification of Na. 2. SiOsodium silicate (3) containing 26.6% SiO. 2
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