A Practical Approach to Water Conservation for Commercial by Mohan Seneviratne

By Mohan Seneviratne

And trade use giant quantities of water, and in a few elements of the area water is turning into a scarce commodity. This booklet is a 'best perform' handbook for water conservation for commercial and advertisement clients world-wide. It bargains a realistic account of the measures which are taken to re-educate business and advertisement clients within the recommendations of water saving and re-use - wherever on the earth.

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Additional resources for A Practical Approach to Water Conservation for Commercial and Industrial Facilities

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Uk. August 2005. [21] Gleick P. Waste Not Want Not – The Potential for Urban Water Conser­ vation in California. Pacific Institute. Oakland, California. November 2003. [22] European Environment Agency. Sustainable Water Use in Europe: Part 1 – Sectoral Use of Water. Brussels. 1999. [23] Department of Natural Resources and Planning. NSW Govt Securing Sydney’s Water Future. Sydney. 2004. 24 A Practical Approach to Water Conservation [24] The Environment Agency. It Pays to be Green. Environment Agency tells Business and Investors.

Most common is silica SiO2 , ranging from 1 to 100 mg/L in natural waters. Higher concentrations are found in waters with significant volcanic activ­ ity. The total silica levels are comprised of reactive silica and unreactive silica. Reactive silica (silicates SiO4 ) is dissolved silica that is slightly ionised and has not been polymerised into a long chain. Silicate scale is formed when soluble silica reacts with Ca2+ and Mg2+ to form various complex silicates at high temperatures. For this reason silica concentrations are controlled below 150 mg/L in cooling water systems.

For this reason heavy metal concentrations are regulated by the EPA and water utilities. 1 Chromium Chromium is a naturally occurring element found in rocks, animals, plants, soil and in volcanic dust and gases. Chromium is present in the environ­ ment in several different forms. The most common forms are as the ele­ ment chromium(0), chromium Cr3+ and chromium Cr6+ . No taste or odour is associated with chromium compounds. Chromium Cr3+ occurs natu­ rally in the environment and is an essential nutrient.

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