Chapter VIII--Sampling and 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 VIII--Sampling and Identification of Water-Formed Deposits PDF full book. Access full book title Chapter VIII--Sampling and Identification of Water-Formed Deposits by . Download full books in PDF and EPUB format.
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 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 : Water
Languages : en
Pages : 10
Get Book Here
Book Description
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.
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 652
Get Book Here
Book Description
Author: American Society for Testing Materials. Committee D-19 on Industrial Water
Publisher: ASTM International
ISBN:
Category : Industrial water supply
Languages : en
Pages : 505
Get Book Here
Book Description
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 : 384
Get Book Here
Book Description
Author: American Society for Testing and Materials. Committee D-19 on Water
Publisher:
ISBN:
Category : Industrial water supply
Languages : en
Pages : 794
Get Book Here
Book Description
Author: ASTM Committee D-19 on Industrial Water, American Society for Testing Materials
Publisher:
ISBN:
Category : Industrial technicians
Languages : en
Pages : 680
Get Book Here
Book Description
Author:
Publisher: ASTM International
ISBN:
Category :
Languages : en
Pages : 348
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Industrial Waste
Languages : en
Pages : 10
Get Book Here
Book Description
Many of the difficulties that 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; unless this information is accurate, however, it can be misleading. Accordingly, reliable methods should be available for the analysis of carefully selected samples. The chemical analysis of water-formed deposits presents a challenge to the analyst's skill and causes him to muster all the knowledge of his profession. The usual quantitative analysis will yield the elemental composition of the major constituents of such deposits, but other tools must be used to determine accurately the combinations of these elements. These include the spectrograph, biological and petrographic microscopes, and X-ray diffraction equipment described in Chapter VIII. It is often possible to determine the source or cause of water-formed deposits from the results of chemical and physical analyses. The treatment for removal or prevention of such deposits can thus be accomplished scientifically instead of by trial and error.
