期刊论文

Low Temperature Evaporation Technology Based on Non-Contact High-Efficiency Membrane Distillation

中文

核化学与放射化学

0253-9950

2021

43

02

163-168

10.7538/hhx.2020.yx.2019097

国家自然科学基金资助项目（11475082）； 南华大学科研启动基金资助项目（190XQD011）；

本校为第一机构

膜蒸馏能对放射性废水进行深度净化,但传统直接接触式膜蒸馏技术存在膜通量小、能耗高等不足,工业应用有限。为了克服直接接触式膜蒸馏技术的缺点,发展非接触式膜蒸馏技术,必须建立废水的低温蒸发技术。基于自制的废水低温蒸发装置,采用实验测量和理论模拟的方法,研究了装置蒸发特性与能力。在相同条件下,自制低温蒸发装置性能的实验测量结果与理论计算结果一致;理论计算了该装置在操作范围内蒸发量的最大值为80.6 kg/h,以及将低温蒸发装置尺寸放大为塔径1 m、填料高度3 m时,其最大蒸发量可达到1 143 kg/h;该装置出气冷凝水电导率反映的离子去除效率达到89.5%。低温蒸发装置能为后续膜蒸馏装置提...

Membrane distillation can be used for deep purification of radioactive wastewater,but the traditional direct contact membrane distillation technology has the disadvantages of low membrane flux and high energy consumption,the industrial use is limited.In order to overcome the insufficient of direct contact membrane distillation,develop non-contact membrane distillation,it is necessary to establish the low temperature evaporation technology of wastewater.Based on the self-made low temperature evaporation device,the evaporation characteristics and capacity of the device were studied by means of e...