Recovery and application of heavy metals from pickling waste liquor (PWL) and electroplating wastewater (EPW) by the combination process of ferrite nanoparticles
作者： Dan Chen , Qian Li , Li Shao , Fan Zhang , Guangren Qian
DOI: 10.1080/19443994.2016.1172984
关键词: Pickling 、 Wastewater 、 Sewage treatment 、 Metallurgy 、 Rhodamine B 、 Metal 、 Nuclear chemistry 、 Metal ions in aqueous solution 、 Materials science 、 X-ray photoelectron spectroscopy 、 Catalysis
摘要: AbstractHeavy metal contamination in wastewater poses a severe threat to the environment and public health. Magnetic iron-based materials are effective for heavy treatment, resources conservation, recycling of ions. In present work, two kinds were used fabricate magnetically separable MnFe2O4 CuFe2O4 as catalysts. The obtained catalysts characterized by scanning electron microscopy, X-ray diffractometry, vibrating sample magnetometer, photoelectron spectroscopy. Results showed that MNPs could effectively activate peroxymonosulfate (PMS) generate powerful sulfate radicals () Rhodamine B (RhB) removal. More than 99% RhB (10 mg/L) was degraded within 20 min using 0.4 g/L 0.2 g/L PMS. most pH degradation PMS/WB-MnFe2O4 3. And under condition loading (0.40 g/L), dye concentration (10 mg/L), PMS = 0.2 g/L T = 25°C, stability reusa...
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