AI Article Synopsis

  • The study explores the use of flaxseed mucilage (FSM) as an eco-friendly coagulant in a method to remove sodium dodecyl sulfate (SDS), an anionic surfactant, from wastewater.
  • The optimum conditions for the coagulation process were found to be at a pH of 7.0, with a dosage of 100 mg/L of FSM, carried out over 30 minutes.
  • In the subsequent photo-Fenton-like oxidation stage using a MnFeO nanocatalyst, complete removal of SDS was achieved with 76 mg of the catalyst and 1.07 mL of hydrogen peroxide in just 17 minutes, demonstrating the method's effectiveness for treating industrial effluents

Article Abstract

In this study, flaxseed mucilage (FSM) has been used as a green coagulant in the pretreatment stage of a combined process for the removal of an anionic surfactant, sodium dodecyl sulfate (SDS). In the post-treatment stage, heterogeneous photo-Fenton-like oxidation using MnFeO nanocatalyst was applied to remove the remained SDS. Using response surface methodological approach, optimum condition in the coagulation process was obtained at pH 7.0, FSM dose of 100 mg L and 30 min. In the photo-Fenton oxidation process, complete SDS removal was achieved using 76 mg of the nanocatalyst, 1.07 mL of HO at 17 min. Application of the combined process on the real wastewater samples indicates that the proposed method can be used effectively for the treatment of industrial effluents containing surfactants.

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http://dx.doi.org/10.1016/j.chemosphere.2019.05.118DOI Listing

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