목편살수여상조를 이용한 축산뇨오수 처리와 목편여재의 물성 및 부착미생물 특성 (Treatment of Animal Wastewater Using Woodchip Trickling Filter System and Physical and Microbial Characteristics of Wood Chip Media)

서지정보

· 발행기관 : (사)한국축산환경학회
· 수록지 정보 : 축산시설환경학회지 / 17권 / 2호 / 71 ~ 80페이지
· 저자명 : 류종원

초록

Trickling filter has been extensively studied for the domestic wastewater treatment especially for the small scale plants in rural area. The purpose of this research is to survey the physical and microbial characteristics of wood chip media and the removal efficiency of animal wastewater using wood chip trickling filter system. The trickling filtration system comprises a filtration bed packed with wood chip media having a particle dia. of 5~7cm. The method comprises natural air from the bottom of the bed. The system also comprises a control mechanism including a time a constant discharge pump for controlling supply of the wastewater into the bed.
The following conclusions were obtained from the results of this research.
1.The specific surface area of wood chip was 0.4123m^2/g, pore volume was 0.0947cm^3/g, density was 0.49g/cm^3. It has forms of parallelogram and oblong which have numerous small pore space. This wood chip has been good condition for microorganism’s habitat, having very larger specific surface area by complex the three dimension structure of cellulose at wood’s major ingredients.
2.The total counts of in attached aerobic microbes were ranged from 106 to 108CFU/g, and anaerobes microbial numbers were from 104 to 107. The aerobic microbial numbers appeared to be much more than those of anaerobic microbial numbers.
3.The average efficiency of BOD5 and CODcr were 74.5% and 51.5%, respectively. The removal efficiency of T-N and T-P were 61.4%, 56.2%, respectively. But SS removal levels remain 19.3%.

영어초록

Trickling filter has been extensively studied for the domestic wastewater treatment especially for the small scale plants in rural area. The purpose of this research is to survey the physical and microbial characteristics of wood chip media and the removal efficiency of animal wastewater using wood chip trickling filter system. The trickling filtration system comprises a filtration bed packed with wood chip media having a particle dia. of 5~7cm. The method comprises natural air from the bottom of the bed. The system also comprises a control mechanism including a time a constant discharge pump for controlling supply of the wastewater into the bed.
The following conclusions were obtained from the results of this research.
1.The specific surface area of wood chip was 0.4123m^2/g, pore volume was 0.0947cm^3/g, density was 0.49g/cm^3. It has forms of parallelogram and oblong which have numerous small pore space. This wood chip has been good condition for microorganism’s habitat, having very larger specific surface area by complex the three dimension structure of cellulose at wood’s major ingredients.
2.The total counts of in attached aerobic microbes were ranged from 106 to 108CFU/g, and anaerobes microbial numbers were from 104 to 107. The aerobic microbial numbers appeared to be much more than those of anaerobic microbial numbers.
3.The average efficiency of BOD5 and CODcr were 74.5% and 51.5%, respectively. The removal efficiency of T-N and T-P were 61.4%, 56.2%, respectively. But SS removal levels remain 19.3%.

참고자료

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