Water reuse in the petrochemical industry
Freshwater resources are increasingly under stress conditions and there exists a huge mismatch between available water resources and rising water demand in many parts of the world. In Europe, water scarcity affects at least 11% of the population and 17% of the territory. Regions with low rainfall and high population densities are prone to water stress same as areas with intense agricultural, industrial or tourism activities. Therefore, protection of water resources is one of the main milestones of environmental protection in Europe.
The industrial sector is the second largest consumer of water after agriculture, using 22% of the freshwater volume drawn in the world. Within the industrial sector, the petrochemical industry is a major water user, mainly for cooling and steam production, and generates considerable volumes of wastewater. At European level, this sector alone is responsible for 1,750 million cubic metres of wastewater a year. To face this challenge, the REWATCH project aims to validate the economic, environmental and technical feasibility of an innovative treatment system for water reuse in the petrochemical industry.
The main stages of REWATCH innovative treatment for water reuse
1 Wastewater generation
2 Physicochemical pre-treatment
3 Biological process
5 Reverse Osmosis
6 Water deionization
7 Use of reclaimed water
The water recycling scheme foreseen in the REWATCH project includes a final step using ion exchange resins aimed at removing trace ions. The aim of this polishing step after is achieve a water effluent fulfilling quality specifications for boiler feed water. Water...
The second review meeting of the project took place at VEOLIA facilities in Sant Cugat del Vallès, Barcelona, on September 21th 2017. Representatives of DOW, Veolia, KWR, WssTP and Fundació CTM Centre Tecnològic attended to the meeting. During the meeting the...
Filtration membranes such as Reverse Osmosis (RO) and Ultrafiltration (UF) are becoming one of the most used technologies in water treatment and separation processes in the industry worldwide. As water scarcity increases and the quality of the water available...