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논문 기본 정보

자료유형
학술저널
저자정보
양승규 (고등기술연구원) 이은실 (고등기술연구원) 김호 (고등기술연구원)
저널정보
한국에너지기후변화학회 에너지기후변화학회지 에너지기후변화학회지 Vol.12 No.1
발행연도
2017.6
수록면
44 - 51 (8page)

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표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
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초록· 키워드

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The air stripping process was used to recover and reuse the ammonia nitrogen generated during the liquefaction of livestock manure which is mostly treated as compost and liquid fertilizer. Ammonia contained in a high concentration in livestock manure was stripped and then ammonium sulfate was formed by absorption. After supplying 2,400 Air-L/Water-L which is the required air volume for air stripping at the temperature of 20 °C, the air stripping rate was checked to determine the optimum pH condition. The actual air consumption was measured and compared with the theoretical value. Furthermore, to determine the air stripping rate according to the residence time, the injected air flow rate was varied from 1.5 to 10 L/min, and the air stripping rate at 8 hours was the highest at a constant air flow rate. This appears to be the effect of the transmittance of the injected air. The livestock manure contains a high concentration of suspended solids (SS) which decrease the air transfer rate. Thus, the air stripping rate was compared at the SS content of 4,000, 10,000 and 14,000 mg/L. As a result, the air stripping efficiency decreased from 41% to 24% as the SS content increased from 4,000 mg/L. Therefore, the conditions below 4,000 mg/L would be the appropriate concentration of the SS content. To evaluate the absorption rate of the stripped ammonia, the production concentration of ammonium sulphate and the fraction of actually generated sludge were determined at 100% absorption, and the produced ammonium sulphate was evaluated for compliance with the KS ISO 6363-3 standard.

목차

ABSTRACT
1. 연구배경 및 목적
2. 실험재료 및 방법
3. Result and discussion
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2018-453-001213252