No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Alum can be created through one of several chemical processes. One is by adding aluminum hydroxide Al (OH) 3 to sulfuric acid H 2 SO 4. The chemical reaction is: 2 Al (OH)3 …
In this study, the composite coagulant polymeric aluminum ferric sulfate (PAFS) was synthesized using FeSO 4.7H 2 O and nitric acid (HNO 3) under different Al/Fe, OH/Fe …
Poly aluminum chloride (PAC) and poly ferric sulfate (PFS) are widely used in wastewater treatment and sludge dewatering, resulting in their amounts being accumulated …
This study aimed to synthesize polymeric aluminum ferric sulfate (PAFS) flocculant from RM by acid leaching and then use the acidified RM residue to produce an acid RM-based ceramsite …
Polymeric aluminum ferric sulphate(PAFS) was prepared from high-sulfur bauxite flotation tailings and red mud by roasting, acid leaching and polymerization. The effects of leaching …
Phosphorus removal is most efficient in the pH range of 5 to 7 for alum and of 6.5 to 7.5 for ferric salts since their precipitates will not readily return to solution. With chemical addition, sludge …
Ferric sulfate solution was produced in situ by sulfating arsenic-bearing, hematite-rich calcines (56–62% Fe 2 O 3) with sulfuric acid, both produced by roasting refractory gold …
Aluminum and Ferric -based salts meet these criteria and are almost universally used.
Two of the major constituents of coal AMD are iron and aluminium, which can be recovered and engineered to function as coagulants. This work examines the potential of …
Efforts were made towards removal of traces of iron by oxidizing ferrous iron into ferric state, which is subsequently precipitated in acidic media. Parameters for quanti-tative oxidation and subsequent removal established. Key words: Iron, Aluminium sulphate, Commercial alum. …
