Specifications for Constructing the Water Use Model
Some restrictions are introduced based on the theoretical foundations and the general design. These restrictions deal with the timing and model structure, the number of desired goods and un-avoidable by products, and the process coefficients. Apart from the energy requirements for extracting raw materials from the natural environment and for producing water and treating wastewater, the relation of the capital stocks to the human labour inputs determines the dynamics of the water use model. Since the capital stock is only built up for the production sector, no capital stocks for the water and wastewater sector exist in the basic model. Instead of using dilution and damage functions for the relation between emissions and the environmental targets, the water and wastewater treatment requirements are determined by exogenously given water quality standards.