Deep removal of fluoride from tungsten smelting wastewater by combined chemical coagulation-electrocoagulation treatment: From laboratory test to pilot test
“…13 The electrochemical method remains the preferred approach due to its simplicity of operation, and high removal efficiency. 14,15 Iron and aluminum are commonly used electrode plates in electrochemistry. 16 The abundant aggregation of metal hydroxides, also known as the “web catching and sweeping” method, is used to remove fluoride in water.…”
This study demonstrates that the coordinated defluorination system (IE-BA) which is made up of the industrial aluminum electrode and natural bauxite for fluoride removal. The defluorination mechanism of the IE-BA system is discussed.
“…13 The electrochemical method remains the preferred approach due to its simplicity of operation, and high removal efficiency. 14,15 Iron and aluminum are commonly used electrode plates in electrochemistry. 16 The abundant aggregation of metal hydroxides, also known as the “web catching and sweeping” method, is used to remove fluoride in water.…”
This study demonstrates that the coordinated defluorination system (IE-BA) which is made up of the industrial aluminum electrode and natural bauxite for fluoride removal. The defluorination mechanism of the IE-BA system is discussed.
“… 26 The most common method is to treat industrial fluoride containing wastewater by adding bleaching powder, ultimately generate calcium fluoride precipitation to remove fluoride ions. 27 However, the chemical treatment process produces a large amount of waste residue, which is difficult to precipitate, and the value of the recovered products is low.…”
In the treatment process of electrolytic aluminum spent cathode carbon, a large amount of fluorine-containing wastewater will be produced. By adding different agents, cryolite was recovered under different reaction conditions.
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