화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터)
권호 24권 1호, p.289
발표분야 분리기술
제목 Study on TNT waste concentration gradient by continuous drum crystallization using decompressure
초록 TNT waste is composed of 2,4,6-trinitrotoluene (TNT), hexahydro-1,3,5-trinitro-1,3,5-triaxzine (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), because of the toxicity and possible carcinogenicity of TNT and RDX, these chemical substances need to be removed before TNT waste is discharged to the environment. Conventional wastewater treatment technologies have been mainly used for incineration. This study investigates a continuos drum ice crystallization process that consume less energy than incineration. The ice from the crystallizer is transferred to a wash column, sweating process proceed with changed the pressure of the decompressor used in the separation process to 200, 400, 600, 800, while maintaining the temperature 20℃. As a result, as the pressure decreased from 800 mbar to 200 mbar, the separation rate became faster and more pure crystals could be obtained from 103 ppm to 63 ppm.
저자 고정완, 김광주
소속 한밭대
키워드 결정화
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