| The aim of this paper is to enhance the permeate flux of the ceramic membrane and lower the operation cost of the membrane equipment, in the area such as the separation of submicron and nanometer particles, and removal of biomass from fermentation broth in pharmaceutical industry and biochemical engineering. By analyzing the application of ceramic membranes in liquid separation, we proposed a way of membrane separation process intensification to solve some problems in whole set equipment, so that the commercial application of ceramic membrane in these areas on the membrane separation process could be realized. The influences of the configuration and appearance shape of turbulence promoter were systematically investigated. It was founded that the winding turbulence promoter could effectively increase the membrane permeate flux and reduce membrane fouling. The mechanism of intensifying the filtration process was elucidated. On the other hand, the influences of backflushing on flux were examined and the operational conditions were optimized.To investigate the mechanism of membrane fouling and cleaning method, oilfield produced water, a complex system, was selected as a research object. Contaminant on membrane surface and cross section were analyzed by the scanning electron microscopy and EDX. The electric potential of membrane material and waster water was measured with electroosmosis and electrophoresis. It confirmed that sulfur and silicon were selectively adsorbed on the membrane surface, which result in more membrane fouling. With the accumulation of the contaminants, the permeation flux decreased continuously. The adsorption could be receded and the fouling could be controlled through pretreatment to membrane. The permeation flux can be recovered by washing with acid, surfactant and base as well as appropriate pulse washing. The determination of the method to investigate the membrane fouling mechanism and to clean the membrane gave the long-term stable operation of the membrane equipment. The effects of the structure parameters of the membrane, such as the pore size and the thickness on the permeation flux were examined in the MF process of submicron and nanometer suspensions. The process of membrane fouling in this kind of separation process was simulated based on the resistance model. It was thought that the membrane fouling in a particle system was composed of the blockage of the process the filtration cake. Wastewater containing titanium pigment was treated by microfiltration membrane, Nanometer titanium can be purified and concentrated by use of microfiltration. Operational conditions were optimized and the model was built. Finally, the amount of wash water was reduced. Based on the above research, the whole set equipment was designed, which can meet the needs in a titanium industry with a capability of 500 ton per year. Backflush and automatic control were used in the equipment, which has been steadily run two years, has been widely adopted in titanium industry. The technology has been widely adopted in titanium industry.In the recent years, whole set equipment of ceramic membrane was increasingly used in the recovery of desired production from fermentation broth in China. A new membrane process integrated with pretreatment of flocculation or coagulation was exploited to recover Inosine. ZrO2 ceramic membrane was used in the work, and the average permeation flux could reach 150L/m2.h under pH value of 3, transmembrane pressure 0.1MPa, CFV 3m/s, and temperature higher than 70C. The recovery ratio of inosine is higher than traditional recovery method, although inosine degraded under acidic and high temperature condition. To improve the recovery ratio of inosine and shorten the process, microfiltation under basic condition was investigated. Generally, proteins prefer to precipitate under basic condition, which would result in membrane fouling. Membrane fouling could be decreased and permeation flux could be effectively improved by adding coagulant. When CaCl2 was added in the fermentation broth...
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