Method for rapidly determining nanofiltration membrane kind and operation conditions during water processing
A technology of operating conditions and nanofiltration membranes, which is applied in the field of nanofiltration membrane reuse in water treatment, can solve the problems of complex analysis methods and the inability to quickly evaluate membrane performance, and achieve less time and workload, rapid evaluation and prediction, Effect of Membrane Fouling Reduction
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[0035] The method for quickly determining the type and operating conditions of the nanofiltration membrane in water treatment of the present embodiment, its specific steps are as follows:
[0036] (1) The water quality of the biochemical effluent of a fermentation pharmaceutical wastewater pretreated by a security filter is shown in Table 1:
[0037] Table 1 The water quality of a certain fermented pharmaceutical wastewater biochemical effluent after being pretreated by a security filter
[0038]
[0039](2) The NFW nanofiltration membrane of Synder Company and the HNF90 nanofiltration membrane of Hyde Energy Company were selected for the test. Before the membrane filtration experiment, wash the nanofiltration membrane with pure water and soak it for about 24 hours, then pre-press it at a pressure of 1.5-1.6 MPa for about 1.2 hours until the membrane flux of pure water is stable, and then set it aside.
[0040] (3) Filter the waste water through a security filter. The str...
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