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폐수처리용 페타이어 담체의 제조 및 특성

Preparation and Characteristics of Media from Waste Tire Powder for Waste Water Treatment

임광희^† 정용준¹ 박이순² 민경석¹

Kwang-Hee Lim^† Yong-Jun Jung¹ Lee Soon Park² Kyung-Sok Min¹

대구대학교 화학공학과, 대구 705-714 ¹경북대학교 환경공학과, 경북 705-714 ²경북대학교 고분자공학과, 경북 705-714

Dept. of Chemical Engineering, Taegu University, Taegu 705-714, Korea ¹Dept. of Environmental Engineering, Kyungpook National University, Kyungpook 702-701, Korea ²Dept. of Polymer Engineering, Kyungpook National University, Kyungpook 702-701, Korea

khlim@taegu.ac.kr

HWAHAK KONGHAK, October 2001, 39(5), 600-606(7), NONE

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Abstract

페타이어 재활용을 위하여 유동상 폐수처리용 폐타이어 담체를 제조할 수 있는 최적공정 조건을 제조된 폐타이어 담체의 물성 분석을 통하여 구축하였다. 페타이어 담체의 제조에 있어서 투입되는 폐타이어와 EVA(ethyl vinyl acetate)바인더의 적정조성(w/w)은 약 4대 1이었고 공극률은 0.74이었다. 이렇게 제조된 폐타이어 담체에 여러 가지 흡착제를 도포하여 미생물을 이용한 폐수처리공정에 적용하였을 때에 온도 및 C/N비의 변화에 따른 5가지 mode의 운전조건 하에서 각각의 폐타이어 담체에 대한 암모니움 이온의 제거율을 평가하고 상호간에 비교하였다. 20℃에서 암모니움 이온의 제거율은 담체의 종류에 무관하였고 10℃에서는 코코넛 또는 석탄재료의 활성탄을 도포한 담체가 합성 칼슘 실리케이트를 도포한 경우보다 약 1.5배 이상의 높은 암모니움 이온의 제거율을 나타내었다.

For recycling waste-tires the process conditions to prepare the media of waste-tire-powder for the fluidized treatment of waste-water were optimized by the analysis of their physical properties. The optimum ratio(w/w) of waste-tire-powder to EVA(ethyl vinyl acetate) binder to prepare waste-tire-powder media turned out to be 4 to 1 and their porosity was 0.74. Various adsorbents were applied to the surface of the prepared media, after which they were used in the treatment of waste-water so that their removal rates of ammonium ion were evaluated under 5 modes of different operating conditions such as temperature and C/N ratios and were compared each other. At 20 ℃ the ammonium ion removal rates of 5 modes were similar regardless of adsorbents applied to the surface of the prepared media. In the meantime, at 10 ℃ the ammonium ion removal rates of the media with coconut- or coal-based activated carbon were shown to be higher by more than 1.5 times than those of the media with synthetic calcium silicate.

Keywords

Media Waste-Tire-Powder Waste-Water Treatment Adsorbents Ammonium Ion

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