Mohan Seneviratne's A Practical Approach to Water Conservation for Commercial PDF

By Mohan Seneviratne

ISBN-10: 1856174891

ISBN-13: 9781856174893

And trade use giant quantities of water, and in a few elements of the realm water is turning into a scarce commodity. This publication is a 'best perform' guide for water conservation for business and advertisement clients world-wide. It bargains a pragmatic account of the measures which are taken to re-educate business and advertisement clients within the concepts of water saving and re-use - wherever on this planet.

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

Sample text

Most naturally occurring organic matter are negatively charged colloids and will be degraded by the action of micro-organisms. Some man-made organics do not degrade naturally; these are known as bio­ refractory compounds and for this reason regulatory agencies strictly limit their discharge. Examples are aromatic and chlorinated hydrocarbons and dioxins from paper mill effluent. Organic concentrations are typically expressed as biochemical oxygen demand (BOD) or chemical oxygen demand (COD). 1 Biochemical Oxygen Demand Biochemical oxygen demand (BOD) is the amount of oxygen in mg/L used by micro-organisms to consume biodegradable organics in wastewater under aerobic conditions over a 5-day period at a temperature of 20 C.

Out of this, 132 participants represent the world’s 1000 leading global companies. Nearly 60% of the survey respondents estimated that corporate reputation represented more than 40% of a company’s market capitalisation [27]. For global companies such as Nike and Gap, protecting their brand image means recognising the responsibility to manage not only their own environ­ mental performance but also that of their global suppliers. Therefore they have adopted global water quality guidelines for suppliers.

Less common anions are • • • • • Carbonates CO3 2− Hydroxide OH− Sulphides S2− and Phosphates PO4 3− Silicate SiO4 2− . 1 Conductivity and Total Dissolved Solids Conductivity is a measurement of the ability of water to conduct electricity due to salts present in water. The higher the dissolved salts content of the water, the higher its conductivity. Monovalent salts have a higher conductivity than diva­ lent salts. Organic compounds like oil, phenol, alcohol and sugar are not ion­ ized in water and therefore have a low conductivity.

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A Practical Approach to Water Conservation for Commercial and Industrial Facilities by Mohan Seneviratne


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