在回收PET瓶的过程中,首先将旧产品切成两到三毫米的小块。然后进行冷热清洗,之后用苛性水清洗以去除灰尘,例如沙子、固体、贴纸和残留的粘合剂。
为了不必经常更换洗涤水和昂贵的碱溶液或不堵塞后续工艺所需的设备和机器,必须在清洗期间清除水循环中的所有污染物。在回收行业中使用具有极高G力和扭矩处理能力的GEA环境卧螺离心机。通过此工艺清洗的洗涤水可以送回工艺循环中。这样可以保护环境并降低生产成本。因此,有效的分离系统可以对维持水循环的经济性做出不可估量的贡献。
然后,可以进一步使用清洁后的PET薄片,并且可以将其加工成运动鞋、功能服装、靠垫填充物、可重复使用的袋子、粘合剂或用于加工卫生产品(如湿纸巾)中的聚酯,或用于“瓶到瓶” 回收,这需要非常乏味的清洗旧PET瓶过程。
Pro 4000卧螺离心机
GEA's innovative process marks a milestone in the pretreatment of biofuels such as hydro-treated vegetable oil and sustainable aviation fuel. By eliminating the bleaching process, manufacturers benefit from significant savings potential: over 50% lower operating costs and up to 12% less CO2 emissions.
The world's population is growing and with it demand for milk. Dairy is an essential component of many global diets. However, its production can be resource-intensive and impact the environment. GEA’s Christian Müller, Senior Director Sustainability Farm Technologies, sheds light on how technological innovations powered by GEA make milk production more efficient and profitable.