This study has implemented an experiment in which hydrogen sulfide was removed by establishing a two-stage packed tower effector filled with nutritious medium and also filling a tower that was immobilized in ceramic media after isolating and identifying the sulfur oxidizing bacteria from a sewage treatment plant. As a result, strains isolated from the sewage treatment plant were found to be similar, including Bacillus fusiformis, Bacillus anthracis sp., Paenibacillus sp., Serratia marcescens sp., Bacillus thuringiensis. The effector that immobilized isolated strains in the ceramic media achieved an approximately 90% removal rate of hydrogen sulfide, while the sterilized ceramic media not immobilized with isolated strains showed a removal rate of about 65%. In addition, the removal rate of hydrogen sulfide in the primary media packing effector immobilized with sulfur oxidizing bacteria was about 92%, while the secondary effector filled with medium had a hydrogen sulfide removal rate near 100%. In addition, 90% efficiency of removal was shown in conditions of EBCT 60s in the experiment that investigated removal rate of hydrogen sulfide according to residence-time, while the efficiency was rapidly reduced up to 45% in conditions of EBCT 30s. On the other hand, when operating for an extended period time while increasing the concentration of injected hydrogen sulfide, the amount of sulfate was increased from 2 mg/L to 12.7 mg/L, and pH was rapidly reduced to 2.7.

1. 서 론
  1.1 연구 배경 및 목적
 2. 재료 및 방법
  2.1 미생물의 분리 및 배양
  2.2 균주의 동정
  2.3 실험장치의 구성
  2.4 Sulfate (SO42−) 농도 및 pH 분석
  2.5 미생물 생균수 측정
 3. 결과 및 고찰
  3.1 신종 미생물 균주의 염기서열 분석결과
  3.2 미생물 포괄고정 효과
  3.3 2단 반응기의 황화수소 제거효율
  3.4 EBCT와 제거효율 관계
  3.5 pH와 sulfate 농도관계
  3.6 미생물 생존율 평가
 4. 결 론
 감사의 글
 References

• 고준일(전남대학교 환경에너지공학과) | Joon-il Ko
• 정선용(전남대학교 환경에너지공학과) | Seon-yong Chung Corresponding author