Scholarlink

The textile industry is one of the world’s largest consumers of water, accounting for 20% of global wastewater production and making it the second-largest contributor to water pollution worldwide. Anaerobic digestion (AD) may represent an environmentally sustainable option for proper treatment before discharge or for water reuse, transforming organic matter into a renewable energy source. In this work, anaerobic assays were performed using sludge pre-adapted to textile effluents and non-adapted sludge. The textile effluent inhibited anaerobic microorganisms in both sludges, with methanogenesis being completely inhibited in the assays performed with the non-adapted sludge. Inoculum-to-substrate ratios (ISR) were also investigated, revealing that a decrease in the ISR from 60% to 40% of inoculum (v/v) improved CH4 yield from (41 ± 9) LCH4 to (92 ± 11) LCH4 per kg of volatile solids (VS) of substrate added, respectively. Studies of the microbial communities composition revealed that, besides Thermovirga, the relative abundance of Chloroflexi, Clostridia, and Synergistaceae species increased during the anaerobic assays performed with the wastewater, both with the previously adapted and the non-adapted inocula, suggesting their low sensitivity to the toxic effect of the textile effluent and a possible role in the textile wastewater biodegradation.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimizing Anaerobic Treatment of Textile Wastewater: Performance Comparison of Adapted Versus Non-adapted Inocula

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Sónia G. Barbosa,
  • Ana R. Silva,
  • Andreia F. Salvador,
  • Aline Pinheiro,
  • Maria A. Pereira,
  • Luciana Pereira

摘要

The textile industry is one of the world’s largest consumers of water, accounting for 20% of global wastewater production and making it the second-largest contributor to water pollution worldwide. Anaerobic digestion (AD) may represent an environmentally sustainable option for proper treatment before discharge or for water reuse, transforming organic matter into a renewable energy source. In this work, anaerobic assays were performed using sludge pre-adapted to textile effluents and non-adapted sludge. The textile effluent inhibited anaerobic microorganisms in both sludges, with methanogenesis being completely inhibited in the assays performed with the non-adapted sludge. Inoculum-to-substrate ratios (ISR) were also investigated, revealing that a decrease in the ISR from 60% to 40% of inoculum (v/v) improved CH4 yield from (41 ± 9) LCH4 to (92 ± 11) LCH4 per kg of volatile solids (VS) of substrate added, respectively. Studies of the microbial communities composition revealed that, besides Thermovirga, the relative abundance of Chloroflexi, Clostridia, and Synergistaceae species increased during the anaerobic assays performed with the wastewater, both with the previously adapted and the non-adapted inocula, suggesting their low sensitivity to the toxic effect of the textile effluent and a possible role in the textile wastewater biodegradation.