垃圾填埋场用HDPE膜灭蝇的试验

垃圾填埋场苍蝇孳生的根本原因是覆土不及时造成的，而传统的灭蝇方法就是洒药，我们用一种替代材料-HDPE膜覆盖在垃圾上进行灭蝇，并进行试验。试验采用0.5mmHDPE膜，膜与膜的一种搭接方法是采用编织袋填土压力，另一种是采用焊接。试验结果用HDPE膜灭蝇在技术上是可行的，膜与膜的搭接最好是焊接后将周边用土压实，以保证膜内高温，高湿，使蛹不能正常羽化，从而达到灭蝇的目的。最后进行了经济效益分析。

Test on Flies Eradication Using HDPE Membrane in Waste Landfill Site

The reason of flies breeding in waste landfill site is that waste filled in can not be cover promptly. Spraying medicine is traditional method of flies eradication. We use HDPE membrane as substitution material to killing flies on waste. The test was carried out. The thickness of the membrane is 0.5 mm. Two kinds of lap joints of membrane were adopted. One is compacted by braid bag filled with soil, the other is welding. The result of test showed that eradicating flies using membrane is feasible on technology. The best way of lap joints of membrane is welding and compacting along perimeter with soil, that can ensure high temperature and water content and prevent normal eclosion of pupa, the purpose of flies eradication could be achieved. Finally, the economic effectiveness analysis was made out.