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Roxarsone (3-nitro-4-hydroxyphenylarsonic acid) has been widely used as organic arsenic additive in animal industry. In this study, the adsorption of roxarsone on TiO2 under dark conditions, the photocatalytic decomposition of roxarsone under UV/TiO2, and the possible photocatalytic pathway were investigated. At the initial concentration of 5–35 mg/L, the adsorption of roxarsone fitted well with the...
Roxarsone is an organic arsenic compound existing extensively in animal wastewater, while multiwalled carbon nanotubes (MWCNTs) is a good adsorbent for the removal of trace organic pollutants from aqueous solution. In this study, the effect of various experimental parameters, such as adsorbent content, initial pH, ionic strength and temperature was investigated using batch adsorption experiment. The...
Adsorption removal of a cationic dye, rhodamine B (RhB) from water onto the tea waste (TW) was investigated. The effects of several variables on the removal of RhB were studied, including initial RhB concentration, pH and contact time. Attempts were made to fit the isothermal data using Langmuir and Freundlich equations. The experimental results have demonstrated that the equilibrium data are fitted...
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