用不可逆过程热力学模型估算通过纳米过滤膜电解质和有机化合物的分离

来源 :中国化学工程学报 | 被引量 : 0次 | 上传用户:iamformywish
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Nanofiltration separation has become a popular technique for removing large organic molecules and inorganic substances from water. It is achieved by a combination of three mechanisms: electrostatic repulsion,sieving and diffusion. In the present work, a model based on irreversible thermodynamics is extended and used to estimate rejection of inorganic salts and organic substances. Binary systems are modeled, where the feed contains an ion that is much less permeable to the membrane as compared with the other ion. The two model parameters are estimated by fitting the model to the experimental data. Variation of these parameters with the composition of the feed is described by an empirical correlation. This work attempts to describe transport through the nanofiltration membranes by a simple model.
其他文献
河南民间美术项目众多,具有浓厚民间传统美术正在受到市场与工业化生产的冲击,大量的民间美术在逐年消失。从五个方面探讨河南民间美术的生存现状,探索河南民间美术在保护及
针对目前我国许多高校课程教学理念陈旧、教学质量不高、人才培养质量下降、创新不足等问题,从教学理念、师资队伍、课程建设、教学内容、教学方法和教学手段、考核、教学资源
中外史学的比较研究,应当包括中日、中韩(朝)古代史学的比较研究.比较东亚各国同源而异流的传统史学,对于深化史学史研究具有重大意义.这种史学的比较研究,应当解决一些关键
为促进世界和平与发展,我国已派出维和部队,分赴黎巴嫩、苏丹、刚果(金)等地执行维和任务,维和行动已经成为当前我国部队军事行动的一项重要内容[1,2]。维和人员心理健康是国
1912年3月10日,袁世凯在北京就任中华民国临时大总统后颁布的,确定了辛亥革命后"有条件地援引前清法律令"的法制发展原则,使民国时期的法律与旧法之间形成了既有断裂又有传承
Mixed-weight least-squares (MWLS) predictive control algorithm, compared with quadratic programming (QP) method, has the advantages of reducing the computer bur
为减少对出站层、站台层,特别是桥梁范围内工程施工组织的影响,结合现场情况及方案比选,长沙南站采用钢结构安装栈道施工技术。通过对大型履带式起重机行走通道的加固与监测,
A high yield xylanase producing strain, A. usamii L336-23, was screened out from its parent strain A.usamii L336 after microwave irradiation. Its productivity o
邵循正是我国著名历史学家,国内外知名的蒙古史、元史学者。他在自己所涉的历史研究领域,比如洋务运动研究、戊戌维新运动研究方面都提出许多重要见解,表现出严谨的学风和鲜
A new process for the direct chlorination of 2-chloro-5-methylpyridine to yield 2-chloro-5-chloromethylpyridine in an airlift loop reactor (ALR) has been studie