Vibrating membrane filtration device and industrial wastewater treatment method applying the same

Abstract

The invention discloses a vibrating membrane filtration device which comprises a vibration generation device fixedly connected with a support, a membrane component and a vibration transmission device used for connecting the vibration generation device and the membrane component; the vibration generation device is a motor; the vibration transmission device comprises a bottom plate, a counterweight, an elastic spindle, a transmission shaft and an eccentric block; one end of the elastic spindle is fixedly connected with the center of the bottom plate, and the other end thereof is fixedly connected with the membrane component; the counterweight and the eccentric block are respectively and fixedly connected with both ends of the center of the bottom plate; the rotating shaft of the motor is connected with the eccentric block through the transmission shaft; and the membrane component is provided with a concentrated water pipe, a water inlet pipe and a water outlet pipe, and a filter membrane is arranged in the membrane component. The invention can effectively prevent the filter membrane from being blocked, maintains stable water flux, effectively solves the technical difficult problems of low membrane flux and membrane blockage of wastewater during the filtration process so that a membrane separation technology can be better applied in an industrial wastewater treatment method, thereby not only improving the water treatment efficiency, but also reducing the water treatment cost.

Description

Technical field [0001] The invention relates to a vibrating membrane filtering device and an industrial wastewater treatment process using the device, belonging to the technical field of industrial wastewater treatment. Background technique [0002] With the development of industrial and agricultural production, more and more organic compounds are widely used in human production and life. At the same time, various kinds of wastewater containing a large number of difficult-to-degrade organic pollutants have also increased correspondingly, such as chemical industry, printing and dyeing, medicine, pesticides Wastewater discharged from industries such as chlorinated benzenes, nitrobenzenes, phenols, polycyclic aromatic hydrocarbons, pesticides and other priority control pollutants often contain a large amount of pollutants. These wastewaters generally have the characteristics of high concentration of pollutants, high toxicity, high salt content, and poor biodegradability. They are a ...

AI Technical Summary

Problems solved by technology

However, the existing problems in the above-mentioned industrial wastewater treatment methods are: when conventional membrane filtration devices treat the pretreated effluent, impurities in the water are often deposited on the surface of the filter membrane, which can easily cause blockage, resulting in a decrease in water flux.

In order to prevent this kind of situation from happening, the existing technology often has higher requirements for pretreatment, so as to complete the purification of wastewater in the pretreatment process as much as possible, but it brings high treatment cost and poor economy. For example, for the current The treatment of high-salt wastewater is often treated by diluting first and then biochemical or multi-effect evaporator, which is costly

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