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Water is very important in the agricultural sector as it is used for irrigation, washing and cooling purposes. Microbiological and chemical criteria differ considerably between the different types of water and hence different treatment levels and techniques are required to meet these criteria. There is a trend of using other water sources such as rainwater and recuperated waste water instead of tap water and this because of cost and sustainability issues. There are however concerns on the removal efficiency of different micro-organisms and the occurrence of chemical disinfection by-products (DBP). These DBPs are formed when disinfectants, such as chlorine, ozone, chlorine dioxide or chloramine, react with components present in the water (e.g. natural organic matter).
A systematic evaluation of currently applied water treatments is necessary with respect to the sustainability of water use. Special attention will be given to the advanced oxidation processes as these techniques show great potential in treating pollutants at low and high concentrations and have already resulted in diverse applications. During water treatment applications, not only the efficiency towards microbiological quality will be monitored and evaluated but also the production of the chemical by-products in order to assess the chemical safety. This collected data will further be used for the development of a semi-mechanistic mathematical model for water treatment. This model will allow the analysis of different treatment scenario’s