Chapter XII Sampling and Instrumental Identification of Water-Formed Deposits PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Chapter XII Sampling and Instrumental Identification of Water-Formed Deposits PDF full book. Access full book title Chapter XII Sampling and Instrumental Identification of Water-Formed Deposits by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 26
Get Book Here
Book Description
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.
Author:
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 26
Get Book Here
Book Description
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.
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 348
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Industrial Waste
Languages : en
Pages : 22
Get Book Here
Book Description
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.
Author:
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 384
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 384
Get Book Here
Book Description
Author: C. M. Maddin
Publisher:
ISBN:
Category : Electron microscopy
Languages : en
Pages : 16
Get Book Here
Book Description
A combination of elemental and direct instrumental analyses has proved most successful for identifying the chemical compounds present in water-formed deposits. Qualitative X-ray diffraction analysis may be enhanced by improving resolution of lines, concentrating minor constituents, and converting amorphous compounds to crystalline form. Quantitative X-ray diffraction is accomplished with the aid of calcium fluoride as an internal standard, to compensate for absorption of X-rays by the deposit sample. Petrographic thin section techniques provide unique advantages for studying layers of deposition directly. Distinctive infrared absorption spectra have been obtained for phosphate, carbonate, and silicate compounds, which should aid in deposit identification. A wide variety of deposits undergo thermal reactions to give characteristic differential thermal analysis patterns. Thermal reactions taking place in steam atmospheres aid in the identification of hydrates; compounds which form carbonates are more easily detected in carbon dioxide atmospheres; and oxygen atmospheres bring about thermal reactions in compounds susceptible to oxidation. Although instrumental methods are extremely useful and may be expected to increase in utility, elemental analysis must still be relied on in difficult cases.
Author: American Water Works Association
Publisher:
ISBN:
Category : Water-supply
Languages : en
Pages : 754
Get Book Here
Book Description
Vols. for 2012- contain only executive summaries of articles.
Author: American Public Health Association
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1254
Get Book Here
Book Description
Author: American Society for Testing and Materials
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 456
Get Book Here
Book Description
Vols. 61-66 include technical papers.
Author:
Publisher:
ISBN:
Category : Factory and trade waste
Languages : en
Pages : 674
Get Book Here
Book Description
