Waste processing Terms Links

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. 

This mass balance presents the possible links in the biogeochemical food web for various heavy metals. Some items may be neglected, like degassing of Pb, Cd, Cu and Zn metals. However, this process is of crucial importance for mercury (see Section 3.2). The output of the heavy metals with soil erosion may also be neglected. After elimination of these processes, the simplified following equation is workable. The sum of inputs by deposition, fertilizing, and waste and rubbish as fertilizer stands as the term Critical Load . 

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