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Table 2 Summary of the results from UHPLC-QTOF

From: Microbial nitrate removal by waste iron shavings from the biological and catalytic ozonation treated dyeing and finishing wastewater

  Influent AnSBR-I AnSBR-C
Medium or weak polar speciesa 44 (8%)b 43 (8%) 54 (9%)
Strong polar speciesa 530 (92%) 504 (92%) 526 (91%)
Total species 574 547 580
  1. aThe species with retention time ≤2 min were regarded as strong polar species, while the species with retention time 2 min were regarded as medium or weak polar species
  2. bThe number in the bracket was the ratio of the species to the total species