Pox 8, School of Information Management, Nanjing Agricultural University, Nanjing, 210031, China.
Environ Sci Pollut Res Int. 2021 Dec;28(47):67724-67735. doi: 10.1007/s11356-021-15400-5. Epub 2021 Jul 14.
Although the recycling of an entire piece of plastic film after farmland use has attracted significant attention, the film fragments generated by punching holes in such plastic films have never been studied. These film fragments can penetrate deeper into the soil more easily than whole pieces of plastic film, causing soil pollution. In this study, two new punchers with burrs were designed, and a group of comparative experiments were conducted on waste film fragment recycling. The results show that the average time required to complete the same task using punchers with two burrs (puncher 3) and one burr (puncher 2) can be reduced by 40.37% and 26.19%, respectively. The average success rates in recycling the film fragments are 91.67% and 68.17%, respectively. The performance of puncher 3 is better than that of puncher 2 for recycling the film fragments. Thus, the application of puncher 3 is beneficial for solving the problems in waste film recycling. Accordingly, the study is of great significance for protecting the soil environment, reducing "white pollution" and achieving China's sustainable development goals.
虽然农田使用后的整卷塑料薄膜回收已引起广泛关注，但此类塑料薄膜上的打孔碎片从未得到研究。这些薄膜碎片比整卷塑料薄膜更容易深入土壤，造成土壤污染。在这项研究中，设计了两种带有毛刺的新型打孔机，并对废膜碎片回收进行了一组对比实验。结果表明，使用双毛刺打孔机（打孔机 3）和单毛刺打孔机（打孔机 2）完成相同任务所需的平均时间可分别减少 40.37%和 26.19%。薄膜碎片的平均回收成功率分别为 91.67%和 68.17%。打孔机 3 在回收薄膜碎片方面的性能优于打孔机 2。因此，打孔机 3 的应用有利于解决废膜回收问题。因此，这项研究对于保护土壤环境、减少“白色污染”和实现中国的可持续发展目标具有重要意义。
