国产欧美精品一区二区三区四区_97国产大学生情侣11在线视频_99久久免费精品视频_青草电影青草免费视频_日本三级在线观看免费_欧美色图一区二区三区_1024手机在线精品观看_国产三级全黄在线观看_在线观看人成午夜影片

To prevent the pollution of MSW is a very important protection work, therefore, analysis the status of MSW disposal, for the current waste sorting, garbage compression station nuisance, countryside rubbish management and difficult to disposal, these issue need to suggestions for improvement.

Solid waste types are varied, size, shape, structure and nature are very different. In order to facilitate its processing, need to be pretreated. Compaction, for the waste to be landfill, according to a certain way to compact, to reduce amount of solid waste transport and disposal volume. Shredding, through human or mechanical external forces, destruction of the cohesion with the object and intermolecular forces leaving the object rupture broken. Sorting, according to physical or chemical properties, before the solid waste treatment, soring, separation of useful and harmful ingredients.