Is polyaluminium silicate sulfate a new coagulant for potable and wastewater treatment?

Polyaluminum silicate sulfate-a new coagulant for potable and wastewater treatment. In: Klute R, Hahn HH, editors. Chemical water and wastewater treatment II, Proceedings of the fifth Gothenburg Symposium, Nice, France, Berlin: Springer, 1992. p. 203–19. Study on the species distribution and transformation of polyaluminium silicate chloride (PASiC)

What is polyaluminium silicate sulphate?

Polyaluminium Silicate Sulphate (PASS (R)) is a new coagulant for potable water treatment which is increasingly being used in North America, the Far East and Europe. It is a patented product resulting from a reaction between three chemicals traditionally used in potable water treatment: aluminium sulphate, sodium aluminate and sodium silicate.

What is polyaluminum silicate sulphate (pass)?

Chemtrade produces Polyaluminum Silicate Sulphate (PASS) for certain applications. While not as widely used as Polyaluminum Chloride or Polyaluminum Chlorosulphate, PASS continues to hold a place in the overall coagulant market and has for many years. Safety Data Sheets (SDS) for Chemtrade products can be found here.

How to improve the stability of polyaluminum silicate sulfate (Pas)?

In order to improve the stability of PAS, polyaluminum silicate sulfate (PASS) with excellent stability was prepared by the introduction of SiO32− and pre-activated silicic acid in Canada Handy Company and Japan, respectively (Jarvis et al., 2005; HaaseD Spiratos, 1989 ).

How to prepare polyaluminum sulfate?

The traditional preparation process of polyaluminum is to slowly add a small amount of alkaline solution to the aluminum sulfate solution under the synergistic conditions of low temperature (10–20 °C) and high-speed shearing ( Tolkou and Zouboulis, 2020; Cheng et al., 2022; Krahnstöver et al., 2019).

Does H+ coagulant interact with petroleum sulfonate?

The introduction of H + will destroy the emulsified oil, thereby reducing the ability of PASS to interact with petroleum sulfonate. Therefore, the coagulant with improved deprotonation ability only interacts with colloidal particles in oily sewage containing a small amount of emulsified oil.