Journal of the Korean Industrial and Engineering Chemistry, Vol.11, No.8, 872-877, December, 2000
폐수처리공정에서 경량기포콘크리트의 효능
Effect of ALC in the Waste Water Treatment Process
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초록
본 연구는 경량기포콘크리트를 폐수처리공정에 활용하기 위한 목적으로 진행되었다. 경량기포콘크리트를 흡착제로 사용한 경우와 교반형태와 폭기형태의 반응기에서 사용하였을 경우의 탁도원인물질 및 총인 성분의 제거 효율 및 BOD 제거에 대한 실험을 실시하였다. 본 연구에서는 탁도는 950NTU, 총용존고형물은 약 700 ppm, 그리고 총인의 농도는 115∼170ppm이며, BOD는 200ppm인 인공폐수를 대상으로 실시하였다. SEM과 BET 방법에 의하여 ALC의 구조 및 비표면적을 분석한 결과 비표면적은 27.66 ㎡/g 이었다. 본 실험조건에서 총인의 85% 정도가 제거되고 탁도는 99% 정도가 제거되며 BOD는 90% 정도가 제거되었다. 경량기포콘크리트를 폐수처리공정에 사용할 경우 반응의 형태에 따라서는 탁도원인물질은 폭기공정에서 처리효율이 우수하며, 총인성분 및 BOD의 제거는 교반공정에서 제거효율이 우수하였다.
The objective of this study is to investigate the removed T-P and turbidity in wastewater treatment process using Autoclaved Lightweight Concrete (ALC). ALC was used as a packing material and supporters. Effects of several physical factors on the phosphorous, turbidity and BOD removal efficiencies were examined by using artificial waste water(T-P: 115∼170 ppm, turbidity: 950 NTU, TDS: 150∼700 ppm and BOD: 200 ppm). Morphology of ALC was investigated by the SEM. The specific area which measured by BET was 27.66 ㎡/g. The results showed that the ALC was effective material as an adsorbent due to its structure and porosity. It was found that turbidity removed was 95∼98%; phosphate removed was 85∼90%; and BOD removed was 90%. Agitation process was more effective than aeration process in the removal of phosphate and BOD.
- 장복기, 정창주, 이종호, 임용무, 시멘트재료화학 291, 전남대학교 출판부, 광주 (1998)
- Howards P, Donald R, George T, Environ. Eng., McGraw-Hill, New York (1998)
- 박상숙, 대한환경공학회지, 17, 1271 (1996)
- Meyers RA, Encyclopedia of Environmental Analysis and Remediation, 8, 5162, John Wiley & Sons, Inc., New York (1998)
- Cheremisinoff PN, Handbook of Water and Wastewater Treatment Technology, 536, Marcel Dekker, New York (1995)
- Reyes O, Sanchez E, Pellon A, Borja R, Colmenarejo MF, Milan Z, Cruz M, J. Environ. Sci. Health, 32, 2483 (1997)
- Son DH, Kim DW, Chung YC, Biotechnol. Lett., 22(1), 35 (2000)
- 米田幸夫, "觸媒基礎測定法," 161, 地人書館, 東京 (1967)
- American Public Health Association. Standard Methods for Examination of Waste and Wastewater, 18th edition, Washington, D.C. (1992)
- Shaw DJ, Colloid Surf. Chem., 174, Butterworth, London (1992)
- Somasundaran P, Agar GE, J. Colloid Interface Sci., 24, 433 (1967)