Industrial water consumption makes up 22% of global water use (UNWATER 2012). As industrialisation in developing nations increases, industrial water use could potentially increase by a factor of five, strongly increasing pressure on water resources. Further, reusing water in industry has the potential to reduce the costs of water supply and wastewater treatment by industries. Wastewater can be reused in agriculture and within a business itself, or between several businesses through industrial symbiosis. Depending on the type and quality of the wastewater, it may either be reused directly, or treated before reuse (i.e. recycled).
Keywords: Water supply, wastewater treatment, reuse in industry and agriculture