The Physical Characterization and Terminal Velocities of Aluminium, Iron and Plastic Bottle Caps in a Water Environment

Aluminium, iron and plastic are materials which extensively used at both industry individual levels. However, significant amounts of aluminium, end up in the environment. Specifically, bottle caps made these often thrown away, with or without bottles, appear among common debris entering world’s oceans beaches. More than 20 million lids have been identified during beach-cleaning campaigns over last 30 years. To recover from shores, conventional technologies can be used. In this paper, physical properties metal were examined related to settling rising velocities caps, as well their drag coefficients hydrodynamic modes water environments, respect gravity separation. The sample contained iron, high-density polyethylene (HDPE), low-density (LDPE), polypropylene (PP) caps. findings revealed that density differences between resulted terminal aluminium particles, significantly higher results allowed us design a flowsheet for cap recovery beach coasts order reduce environmental impact produce add-on products.