Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Biological Treatment of Livestock Wastewater using Aerobic Granular Sludge

호기성 그래뉼 슬러지를 이용한 축산폐수의 생물학적 처리에 관한 연구

  • Received : 2023.04.14
  • Accepted : 2023.06.16
  • Published : 2023.07.31
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Abstract

In this study, the treatment of livestock wastewater using an aerobic granular sludge based sequencing batch reactor was investigated. The reactor operation was carried out by general injection and split injection methods. The average removal efficiency of organic matter after the adaptation period was 71.5 and 87.4%, respectively. Some untreated organic matter was attributed to recalcitrant organic matter. The average removal efficiency of total nitrogen was 65.6 and 88.4%, respectively. These results indicate that the denitrification reaction by split injection was carried out smoothly. As for the solids, the ratio of aerobic granular sludge/mixed liquor suspended solid can be determined as the main factor of the process operation, and the ratio increased gradually and finally reached 86.0%. Correspondingly, the sludge volume index (SVI) was also improved, reaching 54 mL/g at the end of operation, and it is believed that the application of a short settling time contributed to the improvement of settleability.

Keywords

Acknowledgement

본 논문은 경기도형 연구자 중심의 R&D지원(과제번호#2022-011)에 의해 수행되었습니다.

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