中国科技论文在线

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2006年06月26日

【期刊论文】Ultrasonic cleaning of nylon microfiltration membranes fouled by Kraft paper mill effluent

李建新， Jianxin Li， R.D. Sanderson*， E.P. Jacobs

J. Li et al./Journal of Membrane Science 205 (2002) 247-257，-0001，（）：

-1年11月30日

An ultrasonic technique was successfully applied to remove fouling and recover the permeate flux of flat sheet microfiltration (MF) membranes. Three kinds of cleaning methods were used, namely: forwardflushing, ultrasonic cleaning and ultrasound with forw

Ultrasonic cleaning， Forwardflushing， Microfiltration， Nylon membrane， Paper effluent

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2006年06月26日

【期刊论文】Interpretation of calcium sulfate deposition on reverse osmosis membranes using ultrasonic measurements and a simplified model

李建新， Jianxin Li a*， L.J. Koen b， D.K. Hallbauer c， L. Lorenzen b， R.D. Sanderson c

J.X. Li et al./Desalination 186 (2005) 227-241，-0001，（）：

-1年11月30日

摘要

Many models of foulant deposition on a membrane surface during reverse osmosis (RO) are based on fluxdecline data and scanning electron microscopy (SEM) to predict the mechanism of fouling. The actual mechanism of calcium sulfate deposition remains incomp

Reverse osmosis， Calcium sulfate， Membrane fouling， Ultrasonic time-domain reflectometry， Ultrasonic reflection modeling

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2013年04月17日

【期刊论文】Continuous esterification to produce biodiesel by SPES/PES/NWF composite catalytic membrane in flow-through membrane reactor: Experimental and kinetic studies

李建新， Wenying Shi， Benqiao He， Jianxin Li*， Feng Yan， Zhenyu Cui， Zhiqun Zou， Shiwei Guo， Xiaomin Qian.

Bioresource Technology 129(2013)100-107，-0001，（）：

-1年11月30日

摘要

　　A novel composite catalytic membrane (CCM) was prepared from sulfonated polyethersulfone (SPES) and polyethersulfone (PES) blend supported by non-woven fabrics, as a heterogeneous catalyst to produce biodiesel from continuous esterification of oleic acid with methanol in a flow-through mode. A kinetic model of esterification was established based on a plug-flow assumption. The effects of the CCM structure (thickness, area, porosity, etc.), reaction temperature and the external and internal mass transfer resistances on esterification were investigated. The results showed that the CCM structure had a significant effect on the acid conversion. The external mass transfer resistance could be neglected when the flow rate was over 1.2 ml·min-1. The internal mass transfer resistance impacted on the conversion when membrane thickness was over 1.779 mm. An oleic acid conversion kept over 98.0% for 500 h of continuous running. The conversions obtained from the model are in good agreement with the experimental data.

Continuous esterification， Composite catalytic membrane， Oleic acid， Flow-through membrane reactor， Sulfonated polyethersulfone (， SPES)， .，

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2006年06月26日

【期刊论文】Direct monitoring of membrane fouling and cleaning during ultrafiltration using a non-invasive ultrasonic technique

李建新， Jianxin Li， D.K. Hallbauer， R.D. Sanderson*

J. Li et al./Journal of Membrane Science 215 (2003) 33-52，-0001，（）：

-1年11月30日

摘要

An ultrasonic technique has been applied as a non-destructive, real-time, in situ measuring technique for the non-invasive study of fouling and cleaning during ultrafiltration (UF) with polysulfone (PSU) membranes. Paper mill effluent from a wastewater tr

Fouling， Cleaning， Membrane compaction， Ultrasound， Ultrafiltration

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2006年06月26日

【期刊论文】A focused ultrasonic sensor for in situ detection of protein fouling on tubular ultrafiltration membranes

李建新， Jian-Xin Li a， *， R.D. Sanderson b， G.Y. Chai b

J.-X. Li et al./Sensors and Actuators B 114 (2006) 182-191，-0001，（）：

-1年11月30日

摘要

One of the greatest challenges in membrane fouling studies is the development of non-invasive methods that allow for in situ detection of protein fouling, especially in tubular membrane modules. This study describes the extension of ultrasonic time-domain

Ultrasonic time-domain reflectometry， Protein fouling， Ultrafiltration， Tubular membranes， Bovine serum albumin

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