德国人非常重视环境保护，尤其是在垃圾分类方面。德国自1904年开始进行垃圾分类，并在全国范围内逐渐实施和普及，至今已有超过50年的历史。

家庭厨房垃圾分类

他们的垃圾分类从居民的厨房开始。一般来说，德国人在厨房里放置四个垃圾桶，黄色桶用于塑料垃圾，蓝色桶用于纸张垃圾，棕色桶用于米饭、蔬菜和水果皮等厨房垃圾，黑色桶用于其他垃圾等。人们可以将空的啤酒瓶和塑料瓶带到超市换取现金。

塑料瓶回收政策

德国人不会随便丢弃塑料瓶、啤酒瓶和罐子。德国各地的超市都有包装回收设备。带有回收标志的瓶子可以带到超市并放入回收设施中。然后会发放一张票，顾客可以凭票领取押金。此外，超市还设有专门的回收设备，用于回收电池、药品等。

结论

Waste disposal has given rise to many related industries, such as the extraction of gold from cell phones, the use of plastic bottles as road fillers, etc. After being recycled by professional recycling equipment, plastic bottles will be crushed by a plastic bottle crusher and then processed by some methods. Then they can be reused by various industries, generating stable economic benefits. Waste separation not only protects resources but also provides real benefits to individuals, companies and society, which is the reason why the system is so well established in Germany.