Comparatio curatio effectus ferrea sulfate et sodium bisulfite
Processus of electroplating productionem indiget esse galvanized, et in processus galvanized purificationis, basically in electroplating plantabis mos utor chromate, ita ad electroplating wastewater erit producendum numerus chromium, quibus wastewater propter chromium plating. In chromium in wastewater continet Chromium continet hexavalent chromium, quod est toxicus et difficile ad removendum. Hexavalent Chromium plerumque convertitur trivalent Chromium et remota. Nam remotionem de Chrome-continet electroplation wastewater, eget coagulation et praecipitatio sunt saepe solebat removere est. Communiter solebat ferrea sulfate et calce reductionem praecipitatio methodo et sodium bisulfite et alkali reductionem praecipitatio methodo.
I. Ferrum Sulfate et calce Reduction praecipitatio Modus
Ferrum Sulfate est fortis acidum coagulant fortis oxidatio-reducendo proprietatibus. Ferrum ferrea potest directe reducitur cum hexavalent chromium post hydrolysis in wastewater, convertens eam in partem trivalent Chromium coagulation et praecipitatio, et addit in VIII, ut possit adiuvare ad COURANDITIONUM ad Generale Chromium Hydroxide%.
Ferrous Sulfate Plus Callus Coagulant Reduction Chromate praecipitatio habet bonum effectus in Chromium remotionem et humilis sumptus. Secundo non est opus ad adjust in PH valorem ante etiam de ferrea sulfate et non opus ad addere calce ad adjust in PH valorem. Tamen, ex magna moles ferrea sulfate dosing etiam fecit magna incremento in ferrum limo, augendae sumptus de caeno curatio.
II, .sodium bisulfite et alkali reductionem praecipitatio modum
Sodium bisulfite et alkali reductionem praecipitatio chromate, PH de wastewater est adaequatum ad ≤2.0. Then sodium bisulfite is added to reduce chromate to trivalent chromium, and the waste water enters the comprehensive pool after the reduction is completed, the waste water is pumped to the regulating pool for adjustment, and the pH value is adjusted to about 10 by adding alkali nodes, and then the waste water is discharged to the sedimentation tank to precipitate chromate, and the removal rate can reach about 95%.
Method of sodium bisulfite et alkali reductionem praecipitatio chromate est bonum pro Chromium remotionem, et eius pretium est relative altius quam ferrea sulfate et curatio reactionem tempore est secundum acidum ante curatio. Autem, cum ferrea sulfate curatio, quod plerumque non producere nimium obscure, magna reducendo sumptus de repellens curatio, et tractata celand potest solere reddi.
Post tempus: Mar-07-2024
