Download A Practical Approach to Water Conservation for Commercial by Mohan Seneviratne PDF

By Mohan Seneviratne

And trade use enormous quantities of water, and in a few elements of the realm 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 pragmatic account of the measures which might be taken to re-educate business and advertisement clients within the thoughts of water saving and re-use - anyplace on this planet.

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Scientific and Cultural Organisation. Water a Shared Responsibility. The United Nations World Water Development Report 2. Berghahn Books Inc. New York. 2006. [12] Foran B. and Poldy F. Chapter 6 – The Future of Water. CSIRO Sus­ tainable Ecosystems. Canberra. October 2002. [13] BBC News. At-a-glance: The Stern Review. uk 30 October 2006. [14] Department of Parliamentary Services. Issues Encountered in Advancing Australia’s Water Recycling Schemes. Parliament of Australia. Canberra. 16 August 2005.

Pricing Determination. 2005. , Schmidheiny S. and Watts P. Walking The Talk – The Business Case for Sustainable Development. Greenleaf Publishing. 2002. 1 Overview Before we delve into water conservation, it is useful to have an understanding of the basic concepts in water chemistry and ions commonly found in water. Water is known as the universal solvent due to its power to dissolve virtually all substances to some extent. The key to this phenomenal ability is its structure. The water molecule consists of two atoms of hydrogen and one atom of oxygen with a slight positive charge near the hydrogen atoms and a slight negative charge near the oxygen atom.

On the other hand, water suitable for use in the electronics and microelectronics industry for purposes such as the washing and rinsing of semiconductor components in cleaning and etching operations require extremely high purity water and for this reason is expressed as resistivity 32 A Practical Approach to Water Conservation megaohm-cm. It is the inverse of conductivity. A Ultrapure water (type E-1) has a resistivity of 18 megaohm-cm. The dissolved contaminants are mea­ sured in g/L or ng/L (parts per billion or trillion).

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