Wastewater minimisation using inherent

The method presented below utilises inherent storage in idle processing units within a wastewater minimisation framework to allow for the minimisation of effluent and storage. The methodology can be used to either minimise the size of the central storage vessel or provide alternative storage opportunities in the wastewater minimisation problem. 

Gouws, J.F., Majozi, T., Gadalla, M., 2008. Flexible mass transfer model for water minimization in batch plants. Chem. Eng. Process., 47 2323-2335 Gouws, J.F., Majozi, T., 2009. Usage of inherent storage for minimisation of wastewater in multipurpose batch plants. Chem. Eng. Sci., 64 3545-3554 Majozi, T., 2005. Wastewater minimization using central reusable storage in batch plants. Comput. Chem. Eng., 29 1631-1646... 

Two illustrative examples are presented to demonstrate the application of the inherent storage methodology. In the first example the objective is to minimise the amount of wastewater generated as well as the size of central storage required. In the second example the objective is to minimise wastewater while making use of inherent storage and central storage. 

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