Maritime waste is not only the actual discussed micro particles. Maritime waste can be larger fragments pieces, lines, ropes or nets from the economical side – the fishing. Nets like fish net, trawl net or aquaculture nets are in the water as well as fishing lines. Historically such fishing tools were made from natural things but nowadays these are prepared from polymers. Their possible characteristics allow diverse variations of net and line products confected to its need. Such variation is found as waste in the maritime areas like the water, at beach and partly in the recycling. Old nets are wasted and collected. The intension is to produce new nets from it.
Such nets and lines were in contact with salt or sweet water, in contact with the fishing materials like fish (protein, fish fat), algae (protein, cellulose), and stone (particles in water, beach, at bottom of the sea or moved over heavy stones). UV light exposure from sunshine plays also a role. Some of the net material is with protection layer as the nets for the aquaculture could be. As heavy element copper (Cu) plays an important role for fish farms. The copper has an antimicrobial effect. Such should keep bacteria, fungi, viruses, etc.
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