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Performance and Biomass Characteristics of SB R s Treating High-Salinity Wastewater at Presence of Anionic Surfactants

Author

Listed:
  • Huiru Li

    (College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China)

  • Shaohua Wu

    (College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
    Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China)

  • Chunping Yang

    (College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
    Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China
    Hunan Provincial Environmental Protection Engineering Center for Organic Pollution Control of Urban Water and Wastewater, Changsha, Hunan 410001, China)

Abstract

Sodium dodecylbenzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), as two anionic surfactants, have diffused into environments such as surface water and ground water due to extensive and improper use. The effects on the removal performance and microbial community of sequencing batch reactors (SBRs) need to be investigated in the treatment of saline wastewater containing 20 g/L NaCl. The presence of SDS and SDBS could decrease the removal efficiencies of ammonia nitrogen and total phosphorus, and the effect of SDS was more significant. The effect of surfactants on the removal mainly occurred during the aeration phase. Adding SDS and SDBS can reduce the content of extracellular polymeric substances (EPS). In addition, SDS and SDBS also can reduce the inhibition of high salinity on sludge activity. A total of 16 s of rRNA sequencing analysis showed that the addition of surfactants reduced the diversity of microbial communities; besides, the relative abundance value of the dominant population Proteobacteria increased from 91.66% to 97.12% and 93.48% when SDS and SDBS were added into the system, respectively.

Suggested Citation

  • Huiru Li & Shaohua Wu & Chunping Yang, 2020. "Performance and Biomass Characteristics of SB R s Treating High-Salinity Wastewater at Presence of Anionic Surfactants," IJERPH, MDPI, vol. 17(8), pages 1-12, April.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:8:p:2689-:d:345274
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    References listed on IDEAS

    as
    1. Huiru Li & Shaohua Wu & Cheng Du & Yuanyuan Zhong & Chunping Yang, 2020. "Preparation, Performances, and Mechanisms of Microbial Flocculants for Wastewater Treatment," IJERPH, MDPI, vol. 17(4), pages 1-20, February.
    2. Yuanqiang Tang & Yunguo Liu & Tao Zhang & Jiang Li & Xiaohua Wang & Wei Zhang & Guangming Zeng & Shaobo Liu & Lei Guan, 2019. "Acute Toxicity of Divalent Mercury Ion to Anguilla japonica from Seawater and Freshwater Aquaculture and Its Effects on Tissue Structure," IJERPH, MDPI, vol. 16(11), pages 1-12, June.
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