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Flash fixation of heavy metals from electroplating wastewater (EPW) and pickling waste liquor (PWL) into ferrite lattice can be investigated by microwave hydrothermal process. The toxicity of wastewater may be reduced by the redox reaction between Cr(VI) in electroplating wastewater and Fe(II) in pickling waste liquor. Box–Behnken design (BBD) experiment gives optimal process condition of ferrite...
Pickling waste liquor was added into electroplating wastewater as a raw material and NaOH was used as a precipitant. Reacting pH (pH 7-11), volume ratio of electroplating wastewater(V1) to pickling waste liquor (V2) (V1:V2=2:1-20:1), and reaction time (5-30min) were studied by microwave hydrothermal process to synthesize ferrite. Treatment effect was determined by analyzing supernatant with Inductively...
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