PHYSICO-CHEMICAL THEORY OF CLEANING WATER ALUMINUM SULFATE KOAHULYUVANNYAM (POST 1)
DOI:
https://doi.org/10.20535/2218-9300712012138920Keywords:
coagulation, aluminium sulfate, aqua systems, aluminium hydroxideAbstract
The authors suggest a new physical-chemical theory of water treatment coagulants (eg aluminum sulfate). For the first time expressed the opinion that the hydrated aluminum ion in the solid crystalline sulphate (Al2(SO4)3*24H2O) is in the form of dimer [Al2(H2O)24]6+. Last ochyschayemiy water in the presence of sufficient alkaline reserve undergo hydrolytic polymerization of the scheme:
[Al2(H2O)24]6+ → [Al2(H2O)24(OH)2]4+ → [Al4(H2O)36(OH)6]6+ →
→ [Al6(H2O)36(OH)12]6+ → { [Al2(OH)6]3 [Al6(H2O)36(OH)12]2 }6+ → micelles
→ aggregation of micelles in Globular aggregates and chain structure → flakes.
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