Construction of Algal Bed Substratum by Steel-making Slag

Abstract

The objective of this study is evaluate algal bed substratum by steel-making slag. We carried out construction of algal bed substratum by steel-making slag that of particle size finer than natural rock. When algal bed substratum was constructed, the value of the turbidity and pH was almost the same as the surrounding sea area. It could not be confirmed increase in pH when steel-making slag was submerged into the sea. The steel-making slag had been maintained as algal bed substratum after one year. The algal species and amount of the constructed bed by steelmaking slag has been similar that of natural bed and constructed by natural rock.