Dielectric Barrier Discharge (DBD) plasma is a new technique for use in environmental pollutant degradation, which is characterized by the production of hydroxyl radicals as the primary degradation species. Due to the short lifetime of the chemically active species generated during the plasma reaction, the dissolution of the plasma gas has a significant effect on the reaction performance. The plasma reaction performance can be enhanced by combining the basic plasma reactor with a homogenizer system in which the bubbles are destroyed and turned into micro-bubbles. For this purpose, the improvement of the dissolution of plasma gas was evaluated by measuring the RNO (N-dimethyl-4-nitrosoaniline, an indicator of the generation of OH radicals). Experiments were conducted to evaluate the effects of the diameter, rotation speed, and height of the homogenizer, pore size, and number of the diffuser and the applied voltage on the plasma reaction. The results showed that the RNO removal efficiency of the plasma reactor combined with a homogenizer is two times higher than that of the conventional one. The optimum rotor size and rotation speed of the homogenizer were 15.1 mm, and 19,700 rpm, respectively. Except for the lowest pore size distribution of 10-16 μm, the pore size of the diffuser showed little effect on RNO removal.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험재료 및 실험방법
  2.2. 분석 및 측정방법
 3. 결과 및 고찰
  3.1. RNO 분해에 대한 산기관과 균질기 성능 비교
  3.2. RNO 분해에 대한 균질기의 회전자 직경, 속도 및 위치의 영향
  3.3. RNO 분해에 대한 산기관 공극 크기와 산기관 개수의 영향
  3.4. RNO 분해에 대한 플라즈마 전압의 영향
 4. 결 론
 REFERENCES

• 박영식(대구대학교 기초교육대학) | Young-Seek Park (DU University College, Daegu University) Corresponding author