Download e-book for kindle: Quantitative Forecasting of Problems in Industrial Water by A. G. D. Emerson

By A. G. D. Emerson

ISBN-10: 9812381848

ISBN-13: 9789812381842

This textbook is a diagnostic software. It permits chemical engineers, water technologists and others concerned with the layout and provision of an commercial water procedure, whereas it's nonetheless on the layout level, to begin with the chemical research of a water provide and make a quantitative forecast of the most probably difficulties (scale and corrosion). it really is therefore attainable to make provision for a suitable water remedy programme from the very outset. The inclusion of a giant volume of tabulated information permits effects to be learn off without delay with no making advanced calculations. this is often quite helpful for technologists engaged on website (for instance whilst "trouble-shooting"). the power to make quantitative forecasts allows designers to satisfy accountants on point phrases -- by way of justifying the price of together with a water therapy programme, and by means of giving a quantitative overview of the dangers more likely to be encountered if the suggested programme isn't really put in. tools of water remedy will not be mentioned during this textbook, because they could switch now and then; the actual chemistry utilized in quantitative forecasting doesn't.

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Additional info for Quantitative Forecasting of Problems in Industrial Water Systems (Chemical Engineering)

Example text

4. THE SPECIAL CASE OF RECIRCULATING SYSTEMS The comments made in Sec. 5 concerning recirculating systems also apply here. The only item that needs to be discussed in detail is the effect of concentration, in open recirculating systems, on the calcium phosphate saturation index. For any given water at any given temperature, the calcium phosphate saturation index is given by the Eq. 5 }. 5 − 5 log n}. (84) (84a) (84b) (84c) The equation cannot be developed beyond this stage, because of the changes in the pH of the water as it passes round the open recirculating system.

1. (xxii) From a water analysis at atmospheric temperature (15 °C) take the values of Alk and pH and use them to convert the pH to the value at T as already described in item (xvi) of Sec. 1. (xxiii) From (xxi) and (xxii) calculate the Langelier index at T. I = pH − pHS (5) 20 Quantitative Forecasting of Problems in Industrial Water Systems (xxiv) In Table 13, locate the sector containing the value of I obtained in (xxiii). Scan the sector heading horizontally and locate the column headed by the value of I.

Xxii) From a water analysis at atmospheric temperature (15 °C) take the values of Alk and pH and use them to convert the pH to the value at T as already described in item (xvi) of Sec. 1. (xxiii) From (xxi) and (xxii) calculate the Langelier index at T. I = pH − pHS (5) 20 Quantitative Forecasting of Problems in Industrial Water Systems (xxiv) In Table 13, locate the sector containing the value of I obtained in (xxiii). Scan the sector heading horizontally and locate the column headed by the value of I.

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Quantitative Forecasting of Problems in Industrial Water Systems (Chemical Engineering) by A. G. D. Emerson


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