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Treatment of Industrial Textile Wastewater in Biological Aerated Filters – Microbial Diversity Analysis

Research and development

Authors:

  • Paździor Katarzyna
    Department of Bioprocess Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Łódź, Poland
  • Wrębiak Julita (j/w)
  • Ledakowicz Stanisław
    Division of Molecular Engineering, Faculty of Process Engineering and Environmental Protection, Lodz University of Technology, Łódź, Poland

Nr DOI: 10.5604/01.3001.0013.5865

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Abstract:

Investigated herein was the biodegradation of highly contaminated textile wastewater on a laboratory scale, with biological aerobic filters as a single treatment and in combination with the coagulation/flocculation process. Among the three support materials tested (Intalox saddles, ceramsite and beach shavings), the highest organic carbon compound removals (above 60% measured as COD and TOC) and steady operation were obtained for ceramsite. Effective and stable biological treatment was possible thanks to the development of biofilm of high bacterial and fungal diversity. The biodiversity of microflora was estimated on the basis of metagenomic analysis. The coagulation process with PAX 18 was effective in total phosphorus depletion (94%), while the coagulant Epoly CRD enabled up to 99% colour removal. The best results were obtained after the combined treatment, in which biodegradation was followed by coagulation (PAX 18). Such a combination enabled the removal of 98% of BOD5, 87% of COD, 88% of TOC, 48% of the total nitrogen, 98% of the total phosphorus, 98% of toxicity (towards Vibrio fisheri) and above 81% of colour.

Tags:

Biological Aerated Filters, metagenomic analysis, textile wastewater, toxicity, coagulation.

Citation:

Paździor K, Wrębiak J, Ledakowicz S. Treatment of Industrial Textile Wastewater in Biological Aerated Filters – Microbial Diversity Analysis. FIBRES & TEXTILES in Eastern Europe  2020; 28, 1(139): 106-114. DOI: 10.5604/01.3001.0013.5865

Published in issue no 1 (139) / 2020, pages 106–114.

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