期刊
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
卷 133, 期 -, 页码 148-159出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cep.2018.10.004
关键词
Advanced Fenton process (AFP); Landfill leachate; One factor at a time (OFAT); Box-Behnken design model (BBD); Response surface methodology (RSM)
资金
- University Grant Commission (UGC) Gov. of India [F.25-1/2014-15 (BSR), F.5-64/2007 (BSR)]
The intensification of complex landfill leachate treatment using advanced Fenton process (AFP) (H2O2 + Fe(II) + Ozone) was investigated with classical One Factor At a Time (OFAT) and Statistical Experimental Design (SED) approach. The Classical OFAT was employed to identify the range of operating parameters whereas SED using the Box-Behnken Design model (BBD) with Response Surface Methodology (RSM) was employed to optimise the operating parameters. In the OFAT model, the optimum dosage of operating parameter viz. Fe(II) (0.06 mol/L), H2O2 (0.6 mol/L), ozone (30 gm/m(3)) and pH (3) have shown COD and colour removal efficiency of 89.74% and 81.33% respectively within 120 min of reaction. Furthermore, in BBD, the optimum dosage at operating parameter viz. Fe(II) (0.06 mol/L), H2O2 (0.55 mol/L), ozone (25 gm/m(3)) and pH (3) have shown COD and colour removal efficiency of 89.74% and 82.9% respectively. SED model also confirms the correlation between factors and their responses in line with OFAT. The present intensification approach has helped to achieve efficient way for complex landfill leachate treatment compared to other published studies.
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