86-08: Replacement of Asbestos Cement Fills in Natural Draft Cooling Towers

Case studies will be presented based on experience with actual fill replacements in crossflow and counterflow towers. The contribution of water chemistry and cold weather operation to deterioration of asbestos cement fill will be addressed. Environmental considerations in handling and disposal of asbestos materials will be discussed along with the appropriate interface with regulatory agencies. Details of the design and installation of the replacement plastic fill system will be shown and their effect on the performance of the tower will be described.