Materials management Terms Links

As a result, the concept of toxicity classes and management categories linked to dredged-material relocation, as presented in Tables 2 and 3, are presently based on sediment porewater and elutriate testing and may have to be adjusted in the long term. Incorporation of solid-phase tests in routine test batteries should also serve to improve sediment quality guidelines and ensure better protection of aquatic ecosystems. 

LCI, where the system is quantified in a strict format of linked processes. Each process is described in terms of the physical inputs and outputs, both economic (raw materials, materials, products) and environmental (extractions from and emissions to the environment). Out of the total, an ecological profile is compiled listing and adding up all extractions and emissions of the system. An important methodological issue is allocation how to deal with multi-output processes This issue is especially important when dealing with waste management processes and will be dealt with below. 

Event management is rooted in the concept of workflow and milestones, and Figure 9.3 uses nodes and links to illustrate the idea of workflow across the supply chain. Once a chain has been described in terms of the nodes that are in place and the links that have been established, the controls that have been defined respond to events across the chain. An event is a conversion of material at a node in the chain or a movement of material between nodes in the chain. 

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