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This study describes the effects of treated water (TW) on PH changing, growth of watermelon seedlings, canola oil and diesel absorption, the antibacterial ability of the filter that composited from polyurethane(PU) and silver powder(Ag) producing by Electrospinning. In this study, we used the battery energy acquired from solar cell, the water has been processed when it pass through the electromagnetic field. The results of this research indicated that the PH value of TW changed slightly compared with untreated water (UW), but the TW could absorb smell of PH reagent. In addition, the TW could also promote the growth of watermelon seedling, and the growth of watermelon seedling stem length was about twice compared with UW. On the effects of canola oil and diesel absorption, the TW also showed a good oil absorptive capacity, especially for the diesel absorption, it could absorb 28% diesel. For thePU+PU+Ag/CNT filter, it showed about 100% of the antibacterial rate on strain 1 (Staphylococcus aureus ATCC 6538P) and 2 (Escherichia coli ATCC 8739).