[Decoloration and degradation of direct pink 12B by microwave-promoted heterogeneous Fenton-like reaction].

Microwave-promoted heterogeneous Fenton-like reaction, the combination of Fenton-like reagent with microwave, is an efficient method for waste water treatment. In the present paper, the degradation of direct pink 12B (a kind of organic dye) was studied using this method was studied. Through numerous experiments, the influences of various parameters including the initial pH value, dosage of Fe-Ni-Mn/AlO3, dosage of H2O2 and microwave were investigated intensively.

[Study on the hydrolysis distribution of ferric saline by infrared spectrophotometry and single crystal X-ray diffraction method].

The hydrolytic stability of Fe(a), Fe(b) and Fe(c) in different pH values of poly-ferric-flocculants was studied by using Fe-ferron time by time complexation colorimetry. The research results showed that Fe(b) was unstable, and all Fe(b) was transformed to Fe(c) after 10-15 d placement. The content of Fe(c) tended towards stability after 10-15 d.

[Study on apparent kinetics of photocatalytic oxidation degradation Rhodamine B by photo-Fenton reaction].

The Fenton process, mixed by hydrogen peroxide and iron salts with highly oxidative effect, is recognized as one of powerful advanced oxidation technologies available and can be used to destroy a variety of persistent organic pollutants. The oxidation power of Fenton reagent is due to the generation of hydroxyl radical (* OH) during the iron catalysed decomposition of hydrogen peroxide in acid medium. The hydroxyl radical with a high oxidation potential (2.

[Studies on light catalysis oxidation degradation of Malachite Green by Photo-Fenton reagent].

In the present paper, light catalysis oxidation degradation of Malachite Green by Photo-Fenton reagent was researched. The influences of various parameters such as the wave length-absorbency curve of Malachite Green, the concentration-absorbency curve of Malachite Green, initial pH, optimum dosage of Fe2+, optimum dosage of H2O2, different light sources and cation-exchange resin, on dye degradation were researched. Through numerous experiments, the optimum condition for Malachite Green degradation was given.