Water Expo, a three-day exhibition at the Chennai Trade Centre Tamil Nadu, showcases a range of products for industry, office and home water needs. From reverse osmosis membranes to quality testing equipment, the stalls offer the latest in technology for wastewater treatment, desalination and purification. Finance Minister K. Anbazhagan and Environment Minister T.P.M Mohideen Khan visited the exhibition. Mr. Khan said industries must give priority to wastewater treatment to prevent the destruction of water bodies in Tamil Nadu. S. Rajamani, technical adviser to the Centre on environment, inaugurated the exhibition.