Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Technology to Remove Trace Pollutants in Sewage Treatment Water Using Jellyfish Characteristics

해파리의 특성을 활용한 하수처리장 처리수 내 미량오염물질 제거 기술

  • Hyeok Jin Park (SCIST Inc.) ;
  • Eun Jin Kim (SCIST Inc.) ;
  • Kyung Sil Choo (Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University) ;
  • Joo Eun Shim (Department of Applied Environmental Science, Graduate School, Kyung Hee University) ;
  • Min-Kyeong Yeo (Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University)
  • 박혁진 (싸이스트 주식회사) ;
  • 김은진 (싸이스트 주식회사) ;
  • 추경실 (경희대학교 환경학 및 환경공학과) ;
  • 심주은 (경희대학교 환경응용과학과) ;
  • 여민경 (경희대학교 환경학 및 환경공학과)
  • Received : 2023.12.28
  • Accepted : 2024.01.25
  • Published : 2024.02.10
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Abstract

The present study was aimed to evaluate the removal of the trace pollutants (heavy metals and microplastics) in the sewage treatment plant by using the jellyfish Extract at Immunity reaction (JEI) of Aurelia coerulea. The experiment was conducted on two different scales: the lab scale using a Jar-tester and the Pilot system scale equipped with two newly developed devices in the laboratory, the active tube connection mixed system and the concentration integrated separation device. Compared to anionic polymers currently used in the field, JEI showed similar or higher efficiency to remove the trace pollutants. When JEI was added to the effluent through the Pilot system, the combination of JEI and the trace pollutants was maximized through two mixing processes, and as a result, the removal rate of the trace pollutants was greatly improved. Based on these results, we propose the present technology as an alternative to removing trace pollutants that can reduce ecosystem risk and minimize the generation of inorganic waste, away from the existing method.

본 연구에서는 자포동물인 보름달물해파리의 면역반응을 유도하여 추출한 점액물질(jellyfish extract at immunity reaction, JEI)을 활용하여 하수처리장 처리수 내 잔존하는 미량오염물질(중금속과 미세플라스틱)의 제거 가능성에 대해 평가하였다. 실험은 자-테스터(jar-tester)를 이용한 lab 규모와 자체 개발한 관접속형 혼화반응 시스템과 농축일체형 분리장치를 연계한 pilot system 규모의 두 방법으로 수행하였다. 모든 실험 조건에서 JEI는 기존 음이온 고분자에 비해 미량오염물질 제거효율이 유사하거나 높은 것으로 분석되었다. 특히 pilot system 규모로 JEI를 하수처리장의 방류수와 혼합하여 사용하면 두 번의 혼합과정에 의해 JEI와 미량오염물질의 결합이 극대화되고 이로 인해 미량오염물질 제거율이 매우 향상됨을 확인하였다. 이러한 실험 결과를 토대로 본 기술을 기존의 방식에서 벗어나 생태계 위해성이 적고 무기성 폐기물 발생을 최소화할 수 있는 미량오염물질 제거 방법으로 제안하는 바이다.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원의 생태모방환경기술개발사업의 지원을 받아 연구되었습니다(2021002800019).

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