Phycoremediation and valorization of hypersaline pickled mustard wastewater via Chaetoceros muelleri and indigenous bacteria

文献类型： 外文期刊

第一作者： Zhang, Kai

作者： Zhang, Kai;Jiang, Shuqin;Zhang, Juan;Zheng, Jishu;Li, Ping;Bi, Ru;Gao, Lihong;Zhang, Kai;Jiang, Shuqin;Zhang, Juan;Zheng, Jishu;Li, Ping;Bi, Ru;Gao, Lihong;Wang, Song;Zhang, Kai

作者机构：

关键词： Microalgae-bacteria consortium; Diatom; High salinity; Nutrient removal; Pilot-scale verification

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.7； 五年影响因子：9.4 ）

ISSN： 0960-8524

年卷期： 2024 年 393 卷

页码：

收录情况： SCI

摘要： Hypersaline pickled mustard wastewater (PMW), a typical food wastewater with high nutrient content, was successfully bioremediated via the co-treatment of Chaetoceros muelleri and indigenous bacteria in this study. Chemical oxygen demand, ammonia nitrogen, total nitrogen and total phosphorus in 10 % PMW could be effectively reduced by 82 %, 90 %, 94 % and 96 %, respectively, after 12 days treatment. Oxygen species ac-tivities, malondialdehyde content, microalgal biomass, photosynthesis and extracellular polymeric substances were characterized during the treatment to determine the responses of the consortium when exposed to different concentration of PMW. Microbial community analysis demonstrated a significant increase in the relative abundance of Halomonas and Marinobacter in the 10 % PMW after 12 days treatment, which was beneficial for nutrients recycling by the diatoms. Meanwhile, C. muelleri was effective in reducing the relative abundance of potentially pathogenic bacteria Malaciobacter. In conclusion, the work here offers a promising and environ-mentally friendly approach for hypersaline wastewater treatment.

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