Proposal of Experimental Methods for Nutrients Release and SOD

Three kinds of experimental methods are proposed to investigate nutrient release rate fbom the sediment and sediment oxygen demand (SOD). The first method is a continuous-flow incubation method with non-disturbed core sample of the sediment, and is suitable for conventionai use. The second is perfomed with a rectangular, closed nume, which should be used for fundamental research to investigate, i. e., hydrodynamic control of mass transfbr. The third one consists of a rectangular flume and a non-disturbed core sample, which addresses an accurate, standard method and is coupled to measurements widl microelectrodes. Advantages and disadvantages of these methods are discussed.