| 摘要 |
To aid in the spontaneous opening of closed garbage bags deposited in landfills, a biodegradable bag tie made from plant sources is described. The preparation of the tie material includes hydrolysis with an acidic, enzymatic, or basic aqueous solution, combined with microwave exposure, to make the strip amenable to rapid digestion by microorganisms indigenous to landfill environments. The strips may then be tied by knotting around the open end of the polyethylene garbage bag or by joining the two ends of the strip with double-sided adhesive tape. In this way, the closed tie is digested soon after deposition of the bag in a landfill, thereby also exposing its contents to local aerobic bacteria and fungi. |
