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Updated: Aug 15, 2026

Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment
Published on: May 2, 2025
Treatment of hypersaline-containing wastewater with salt-tolerant microorganisms
1Department of Bioscience & Technology, Faculty of Science & Engineering, Ritsumeikan University, Nojihigashi, Kusatsu, Shiga 525-8577, Japan. kubo@se.ritsumei.ac.jp
Abstract:
Two salt-tolerant bacteria were isolated from soil samples to treat a high-salt-content wastewater from a pickled plum production plant. The strains, which were identified as Staphylococcus sp. and Bacillus cereus, grew well in a medium containing 0 to 15% NaCl. When wastewater in a flask was treated with the strains for 72 h, the COD removal was about 70%, and this was increased to about 90% when they were used in a pilot plant (working volume 1 m3) in a batch culture carried out for 7 d. The Staphylococcus sp. and Bacillus cereus strains occupied almost all of the pilot plant, in which they were present in a ratio of 3:1 (at 23-27 degrees C).
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