Download or read book Symposium on Identification of Water Formed Deposits written by R Scott and published by . This book was released on 1960 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chapter VIII Sampling and Identification of Water Formed Deposits written by and published by . This book was released on 1960 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pure water in an uncorrodible vessel would never leave a deposit. Although this ideal case has been very nearly reached in some instances, deposits are still found in most water or steam systems. The examination and analysis of these deposits provides the person responsible for water treatment with information about phenomena in the water system, and will frequently indicate to him the means for correcting the condition that caused the deposit. This chapter covers the nature of water-formed deposits, the sampling of deposits for analysis, and methods for identification of the constituents of a deposit. Quantitative chemical analysis is dealt with in Chapter IX. Some of the instrumental methods discussed in this chapter are not at present widely used in the examination of water-formed deposits, but brief descriptions are included because there are instances where they can be used to advantage. Deposits may be divided into three general classes: inorganic, organic, and biological. Inorganic deposits result from corrosion of containing surfaces; from precipitation by chemical reaction between two or more constituents of the water; or precipitation from physical causes, such as change in solubility with pressure or temperature, by evaporation to dryness, or by relief of supersaturation. Closely akin to these, but still somewhat distinct, is the sedimentation of suspended matter.

Download or read book Identification of Water formed Deposits written by American Society for Testing and Materials. Meeting and published by . This book was released on 1960 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Identification of Water formed Deposits written by and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification of Water Formed Deposits written by ASTM. Committee D-19 on Industrial Water and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chapter VII Sampling and Identification of Water Formed Deposits written by and published by . This book was released on 1956 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water-formed deposits usually are not homogeneous. Inorganic deposits may be formed by reaction between the water or its solutes and the containing vessel or piping, and by reaction between solutes in the water. Biological types grow by consuming the required nutrients from water and, like inorganic deposits, may be deposited where formed or carried in suspension and later deposited some distance away. Chemical and physical changes in the operation of the water system may alter the site and character of deposits either temporarily, cyclically, or permanently. Determination of the average chemical composition of the resultant mixture therefore is of limited help in diagnosing the cause, or in providing a means for prevention, of a water-formed deposit.

Download or read book Chapter XII Sampling and Instrumental Identification of Water Formed Deposits written by and published by . This book was released on 1969 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pure water in an uncorrodible vessel would never leave a deposit. Although this ideal case has been very nearly reached in some instances, deposits are still found in most water or steam systems. The examination and analysis of these deposits provides the person responsible for water treatment with information about phenomena in the water system, and will frequently indicate to him the means for correcting the condition that caused the deposit.

Download or read book Chapter VIISampling and Identification of Water Formed Deposits written by and published by . This book was released on 1953 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water-formed deposits usually are not homogeneous. Inorganic deposits may be formed by reaction between the water or its solutes and the containing vessel or piping, and by reaction between solutes in the water. Biological types grow by consuming the required nutrients from water and, like inorganic deposits, may be deposited where formed or carried in suspension and later deposited some distance away. Chemical and physical changes in the operation of the water system may alter the site and character of deposits either temporarily, cyclically, or permanently. Determination of the average chemical composition of the resultant mixture therefore is of limited help in diagnosing the cause, or in providing a means for prevention, of a water-formed deposit.

Download or read book Symposium on Identification of Water formed Deposits written by American Society for Testing and Materials. Meeting and published by . This book was released on 1960 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Identification of Water formed Deposits written by American Society for Testing and Materials and published by . This book was released on 1960 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on the Identification of Water formed Deposits Scales and Corrosion Products by Physico chemical Methods written by American Society for Testing Materials and published by . This book was released on 1943 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Identification of Water formed Deposits written by and published by . This book was released on 1960 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on the Identification of Water formed Deposits Scales and Corrosion Products by Physico chemical Methods written by American Society for Testing and Materials and published by . This book was released on 1943 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deposit Identification First Step Toward Understanding a Water Problem written by J. K. Rice and published by . This book was released on 1960 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A knowledge of the composition of a water-formed deposit is necessary in order to understand the manner in which the deposit formed. This truism is so obvious that it should not be necessary to state it, and yet incomplete or incorrect knowledge of deposit composition derails many investigations, sidetracks others, and generally fills the literature with cause and effect examples that are confusing at best and very misleading at worst. It is not sufficient to know just the environment, location, and appearance of a deposit in order to understand with certainty how the deposit formed. It is unfortunate that at the outset most deposits encountered are very incompletely detailed by the first observer before a crucial part of the total evidence needed is destroyed by careless sampling. Even with adequate sampling and a good description of the appearance of the deposit, accurate information on the composition of the deposit is required. It is here that the intelligent employment of the appropriate analytical tools is able to produce the most startling and conclusive results. Such employment of the proper instrumental methods of analysis by the engineer concerned presumes at the very minimum an understanding of the potentialities of each method.

Download or read book Standard Practices for Identification of Crystalline Compounds in Water Formed Deposits By X Ray Diffraction Withdrawn 2022 written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Identification of Water formed Deposits written by American Society for Testing Materials and published by . This book was released on 1960 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chapter VIII Analysis of Water Formed Deposits written by and published by . This book was released on 1956 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the difficulties which arise during the industrial use of water are closely related to water-formed sludges, scales, and corrosion products. The composition of such deposits can be interpreted to provide a guide for practical preventive treatment of either the water or its environment. In the proper hands, complete and detailed information concerning water-formed deposits can be useful; however, unless this information is accurate, it can be misleading. Accordingly, reliable methods should be available for the analyses of carefully selected samples.