欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为获取纳滤膜法处理阿斯巴甜高含盐有机废水的最佳操作工艺参数,建立了阿斯巴甜高含盐有机废水纳滤膜处理试验平台。对不同操作压力(1.6、2.0、2.4、2.8、3.2 MPa)、不同p H值(2、3、6、8、10)、不同温度(30、35、40、45、50℃)和不同进液流速(0.02、0.05、0.10、0.15、0.20 m/s)条件下,纳滤膜处理阿斯巴甜高含盐废水的膜通量、体积浓缩比、氯化钠去除率、氨基酸截留率和氨基酸回收率特性进行了试验研究。研究表明:采用纳滤膜处理阿斯巴甜高含盐有机废水,操作压力,温度、p H值和进液流速对纳滤膜的分离性能有不同程度的影响,试验得出的最佳操作压力为2.4 MPa,p H值为6,进液温度为40℃,进液流速为0.1 m/s,在该操作参数下,纳滤膜运行3 h,平均膜通量为21.5 L/(m2·h),体积浓缩比为5.9,氯化钠去除率为96%,有机物L-苯丙氨酸和L-天冬氨酸截留率分别为89%和77%,L-苯丙氨酸和L-天冬氨酸回收率分别为90.6%和80.3%。试验研究为高含盐有机废水处理的工业应用提供了基础。
英文摘要：
In order to obtain the appropriate operating parameters in treating aspartame hypersaline amino acids wastewater using nanofiltration membrane, the experimental device was built. Experimental investigation was carried out to explore the separation performance of average permeate flux, the volume concentration ratio,amino acid retention, sodium chloride removal rate and amino acid recovery rate under different experimental conditions. Experimental parameter conditions were as follows:when inlet pressure was 1.6, 2.0, 2.4, 2.8, 3.2 MPa, pH value was 6.8~7.5, temperature was 40℃and feed flow rate was 0.1m/s;when temperature was 30, 35, 40, 45, 50℃, inlet pressure was 2.4 MPa, pH value was 6.8~7.5 and feed flow rate was 0.1 m/s;when pH value was 2, 3, 6, 8, 10, inlet pressure was 2.4 MPa, temperature was 40℃and feed flow rate was 0.1m/s;when feed flow rate was 0.02, 0.05, 0.10, 0.15, 0.20 m/s, pressure was 2.4 MPa, temperature was 40℃, pH value was 6.8~7.5. The results show that the inlet pressure, temperature, pH and feed flow rate have different effects on nanofiltration membrane separation performance. When inlet pressure increases, the average permeate flux, volume concentration ratio, sodium chloride removal rate and amino acid retention increase, while amino acid recovery rate decreases slightly. When temperature increases, average permeate flux, volume concentration ratio and sodium chloride removal rate increase, while amino acid retention and amino acid recovery rate decrease. When pH value increases, average permeate flux, volume concentration ratio and sodium chloride removal rate increase, and there is a peak in pH value of 6. Then with the increase of pH value, average permeate flux, volume concentration ratio and sodium chloride removal rate decrease, while amino acid retention and amino acid recovery rate increase. When feed flow rate increases, average permeate flux, volume concentration ratio,sodium chloride removal rate increase. But when feed flow rate is greater than 0.1 m/s, they tend to
同期刊论文项目
同项目期刊论文
期刊信息
位置：