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A method of operating and controlling a group of filtration membrane modules and a group of modules for the embodiment of this method
A method of operating and controlling a group of filtration membrane modules and a group of modules for the embodiment of this method
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机译:一种用于操作和控制一组过滤膜组件的方法以及用于该方法的实施例的一组组件的方法
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摘要
A method for operating and controlling a bank of filtration membrane modules arranged in parallel and periodically backwashed. Untreated water is fed in for treatment at a controlled pressure and the discharge pressure of the permeate is adjusted to below the feed pressure; the bank is provided with a water meter (60) on the untreated water inlet, and three pressure sensors on the untreated water inlet, the permeate outlet and the backwashing circuit respectively, so that the meter and the sensors (100) output signals to a control unit; each module is successively backwashed using the permeate from the other modules by isolating each module in turn, whereby the water meter and the pressure sensors may be used to determine the specific backwashing permeability (150) of the isolated module and the production permeability of the other modules; and the resulting values are compared with reference values to change the backwash periodicity, wash the modules and detect any operating defects.
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