Comparative study of atrazine degradation by magnetic clay activated persulfate and HO.

To effectively remove the endocrine disrupting chemicals (EDCs) in water, FeO was loaded on the surface of modified sepiolite clay by the method of co-precipitation to catalyze potassium persulfate (KSO) and hydrogen peroxide (HO) respectively to generate SO˙ and ·OH for atrazine (ATZ) removal. The magnetic clay catalyst was characterized by XRD, SEM, N adsorption-desorption and isoelectric point. The degradation efficiency of ATZ in the two systems was systematically compared in terms of initial pH, oxidant dosage and oxidant utilization rate.

Effective treatment of spacer tube reverse osmosis membrane concentrated leachate from an incineration power plant using coagulation coupled with electrochemical treatment processes.

Membrane concentrated leachate is an important secondary pollutant in incineration plants and needs to be treated properly in order to achieve the "zero discharge" standard for pollutants from incineration plants. In this study, coagulation followed by the electro-oxidation (EO), and electro-coagulation (EC) methods were studied. Each of these processes was used to treat the spacer tube reverse osmosis membrane concentrated leachate from an incineration plant.

Atrazine degradation using FeO-sepiolite catalyzed persulfate: Reactivity, mechanism and stability.

In this study, with sepiolite as a support, a novel magnetic FeO-sepiolite composite was fabricated by coprecipitation method. The characterization results reveal that the sepiolite support could anchor FeO nanoparticles with good dispersion. The composite was used as a catalyst to activate persulfate (PS) for atrazine (ATZ) degradation.