REVIEW OF PREVENTION OF HEAVY METAL POLLUTION IN MARINE SEDIMENTS

Heavy metals in marine sediments can cause many serious pollution problems. The sample pretreatment and elemental composition measurement of heavy metals in marine sediments, as well as some characteristics in the recent research methods, were summarized in this paper. It is hoped to make further progress in prevention of heavy metal pollution in marine sediments. According to modern bio-mediation and chemical control technologies, some tentative plans to prevent or reduce the concentrations of heavy metals in marine sediments were put forward at the same time. And in the chemical control, the potential application of Chitosan in prevention of heavy metal pollution in marine sediments was introduced in detail.