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Synthetic Textile Wastewater Treatment using Potassium Ferrate(VI) – Application of Taguchi Method for Optimisation of Experiment

Research and development

Authors:

  • Thomas Maciej
    Chemiqua Company, Kraków, Poland
  • Barbusiński Krzysztof
    Institute of Water and Wastewater Engineering, Silesian University of Technology, Gliwice, Poland
  • Kliś Simona
    The Central Mining Institute, Katowice, Poland
  • Szpyrka Ewa
    Faculty of Biotechnology, University of Rzeszów, Rzeszów, Poland
  • Chyc Marek
    Institute of Mathematical and Natural Science, State Higher Vocational School in Tarnów, Tarnów, Poland

Nr DOI: 10.5604/01.3001.0011.7313

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Abstract:

The article attempts to assess the usefulness of the Taguchi method to optimise the purification process of synthetic textile wastewater (pH 6.7 - 7.2, Conductivity = 6.71 - 6.84 mS/cm, Salinity = 3581 - 3648 mg NaCl/l, Colour = 560 - 4710 mg Pt/l, COD = 2220 - 2290 mg O2/l, TOC = 394 - 551 mg/l) using K2FeO4. The research was conducted using 3 types of wastewater containing anionic detergent (sodium lauryl sulfate, 100 mg/l) and differing only in the concentration of azo dye Acid Green 16 (AG 16). Technical K2FeO4 was used as an oxidiser, which was subjected to physico-chemical analysis (purity, UV-VIS spectrum, surface characteristics and chemical composition using SEM and EDX methods). For planning and optimising the wastewater treatment process, the Taguchi method was used for four input parameters: pH (2, 7, 12), reaction time (10, 30, 50 min), AG 16 concentrations (20, 120, 220 mg/l) and K2FeO4 concentrations (25, 125, 225 mg/l), for which 9 experiments were performed in accordance with the plan adopted. Test result analysis allowed to indicate the optimal values for individual input parameters (pH 2, time = 50 min, AG 16 = 20 mg/l, K2FeO4 = 125 mg/l). Under these conditions, visual discoloration of wastewater was obtained (AG 16 = 0.4 mg/l, ↓98% ), colour removal (66 mg Pt/l, ↓88%) and DOC (249 mg/l, ↓37%).

Tags:

textile wastewater, potassium ferrate(VI), Acid Green 16, Taguchi method.

Citation:

Thomas M, Barbusiński K, Kliś S, Szpyrka E, Chyc M. Synthetic Textile Wastewater Treatment using Potassium Ferrate(VI) – Application of Taguchi Method for Optimisation of Experiment. FIBRES & TEXTILES in Eastern Europe 2018; 26, 3(129): 104-109. DOI: 10.5604/01.3001.0011.7313

Published in issue no 3 (129) / 2018, pages 104–109.

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