The use of water in power plants, both in relation to the quantity required and the quality of that discharged is of growing concern in a number of countries.
Many countries have legislation which sets limits on the composition of pollutants in the effluent.
Other streams are related to the FGD plant, boiler cleaning, ash transport. Demineraliser plant regeneration and coal stockpile run-off. More recently the trend is towards water conservation and the attainment of zero discharge. This report considers issues relating to the discharge of effluent from power plant. The different affluent streams in power plants are described - the role they play in the operation of the plant, how the pollutants arise in the effluent and the typical composition.