Chemical Tank Cleaning Eliminates Town's Chlorine Demand
Water & Wastes Digest
May 2003
Ulrich Reimann-Philipp, Ph.D.
Finished water quality often declines in storage facilities. Traditional tank cleaning methods have some effect in removing loose debris and sediment, but leave most of the scale, metal oxide deposits and biological growth in place. Chemical cleaning methods have been widely applied in Europe for years and have become an essential part of preserving water quality in systems which operate with minimal or no chlorine.
Minimizing Out-of-Service Time During Tank Painting
Water Engineering & Management
February 2002
Tank painting projects can cost many thousands of dollars, but often the most costly aspect of tank rehabilitation is having your tank out of service. What can be done to get your tank back in service sooner? One approach is to control the environment and minimize delays due to poor weather. Another is to use coatings that tolerate a wide range of climatic conditions and cure quickly at ambient temperature. By combining these methods, down-time can be greatly reduced.
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Environmental Control Speeds Water Tank Project
Water Engineering & Management
April 2001
Concerns about expenses, deadlines and the environment all came into play when the Helix Water District near San Diego, Calif., had to recoat a four-million-gallon water storage tank.
San Diego Tank Structure Wins Award
Water & Wastes Digest
May 2000
Demand for additional sewerage system capacity and the need to reclaim wastewater in San Diego’s arid region led the City of San Diego Metropolitan Wastewater Department, San Diego, California, to construct two 3.5 MG flow equalization basins at the North City Water Reclamation Plant (NCWRP).
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