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J Korean Soc Environ Eng > Volume 37(10); 2015 > Article
J Korean Soc Environ Eng 2015;37(10): 558-562. doi: https://doi.org/10.4491/KSEE.2015.37.10.558
마이크로버블과 촉매 적용에 따른 가축분뇨의 슬러지와 유기오염물질 감량 효과
장재경1, 김민영1, 성제훈1, 장인섭2, 김태영2, 김현우3, 강연구1, 김영화1
1국립농업과학원 농업공학부 에너지환경공학과
2광주과학기술원 환경공학과
3전북대학교 환경공학과
Effect of the Application of Microbubbles and/or Catalyst on the Sludge Reduction and Organic matter of Livestock Wastewater
Jae Kyung Jang1, Min Young Kim1, Je Hoon Sung1, In Seop Chang2, Tae Young Kim2, Hyun Woo Kim3, Young Koo Kang1, Young Hwa Kim1
1Energy and Environmental Division, National Academy of Agricultural Science
2Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology
3Department of Environmental Engineering, JunBuk National University
Corresponding author  Jae Kyung Jang ,Tel: 063-238-4074, Fax: 063-238-4078, Email: jkjang1052@korea.kr
Received: October 2, 2015;  Revised: October 20, 2015;  Accepted: October 23, 2015.  Published online: October 31, 2015.
ABSTRACT
This study was tested to evaluate the effect of the six different combinations of microbubble, catalyst, and air as oxidant on the sludge and organic matter reduction. When all of microbubbles and catalyst, and an oxidizing agent (under Conditions 1) such as air were used, the sludge was removed more than 99%, and TCOD and SCOD removal was 58% and 13%, respectively. This result was the highest value of six conditions. In the following order, the sludge reduction of the microbubbles with air (Condition 2) and catalyst with air (condition 4) was 95% and 93.1%, respectively. TCOD removal was found to be each 53% and 47%. When the microbubbles were used with oxidant like air, the removal of sludge and organic matter was high. All of these values were higher than that of using only microbubbles and catalyst without air. In the microbubbles and catalyst react under air supply condition, OH-radicals were generated in the reaction process. These OH-radicals in the reaction process decomposed the pollutants by the strong oxidizing power. In all conditions with air, the sludge reduction was high removal rate more than 93% and TCOD removal was over 47%.
Key Words: Microbubble, Catalyst, Sludge, Organic Matter, Livestock Wastewater
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