Characteristics of poly-silicate aluminum sulfate prepared by sol method and its application in Congo red dye wastewater treatment.

ABSTRACT: A novel method for synthesizing poly-silicate aluminum sulfate coagulant (PSAS) using a silica-alumina sol was reported. Herein, two modalities (nSiO₂/nNa₂O: 1.11 and 3.27) of self-made water glasses were used as the silica source for synthesizing the sol precursor. Then, the PSAS_1.11 and PSAS_3.27 with different basicity were obtained by controlling the Al molar ratio of precursor to aluminum sulfate. The results showed that the PSAS_1.11 coagulant prepared with low modulus water glass (LMWS, 1.11) has low turbidity and good stability. Using low modulus water glass, the effect of the Al molar ratio of precursor to aluminum sulfate on the basicity and stability of PSAS_1.11 with Al/Si of 20 and the effect of the m

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC9043950 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature