CAJ | 학술논문

以L-天冬氨酸为原料合成了聚天冬氨酸,红外光谱性质表征确认了其结构;并进行了含镉废水的除镉正交试验,确定了最佳条件.当反应温度60℃、恒温时间30min、水样pH=6时,最大吸附容量为1.97 g·g~(-1),去除率79.38%.聚天冬氨酸可以作为含镉废水的除镉材料.
이L-천동안산위원료합성료취천동안산,홍외광보성질표정학인료기결구;병진행료함력폐수적제력정교시험,학정료최가조건.당반응온도60℃、항온시간30min、수양pH=6시,최대흡부용량위1.97 g·g~(-1),거제솔79.38%.취천동안산가이작위함력폐수적제력재료.
The PASP (polyaspartic acid) is synthesized by L-aspartic acid,and is charactered by IR. The optimal conditions with polyaspartic acid remove cadmium (Ⅱ) in waste water are definited: reaction temperature 60 ℃ time 30 min, the water's pH 6, the biggest chelate ability is 1.97 g·g~(-1) and the removing rate is 79.38％. Polyaspartic acid was of no poison, harmless and biological degradation , it i8 a good material in removing cadmium(Ⅱ).