摘要:

Anticipating the inevitable, the Ottawa‐Carleton regional municipality has made provisions for a supply – and‐distribution water system to service the forecasted population. A short‐term and a long‐term plan have been developed to provide for the predicted water demand of more than half a million people.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02139.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

The water industry is always in search of new and improved methods of chemical analyses of its product—potable water supplies. This article proposes a new procedure for the analysis of anionic surfactant discharges in wastewater effluents. The procedure has been found to be reliable for linear alkylate sulfonate analysis and is also proposed as a possible new standard method.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02140.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

Problems concerning trace metals must be acknowledged and dealt with when one generates continuous data on a real‐time basis. What is needed is an understanding of the response obtained by data systems and how it relates to the total trace‐metal content. This information must then be defined and resolved in terms of achievement at reasonable cost, reliability, and time scale of results.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02141.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

This article presents a new and improved method for determining trace amounts of boron in water in the range of 0.25–1.00 mg/l. The modified method is purportedly more rapid, more precise, and less involved than the standard curcumim method.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02142.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

An analytical scheme has been developed for the separation and concentration of copper, cadmium, and zinc from waters. The ring–oven technique is employed for the final concentration step and measurement of the isolated species. Detection of concentrations of these metals well below the maximum permissible concentration is possible with this technique. It is anticipated that this procedure will be useful in field studies and as a screening device to determine compliance with standards.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02143.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

A modified methylene blue test for estimating MBAS concentrations has been developed that reduces the number of extractions from seven to two and also reduces the interference caused by chloroform‐extractable pollutants. This simplified methylene blue method is recommended for use by military personnel or treatment‐plant operators with limited training in chemistry.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02144.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

The zeta potential of different clays such as kaolinite, montomorillonite, and fuller's earth at 100, 250, 500, and 1 000 mg/l in 0.145, 0.58, 1.45, and 5.8 times 10‐4Mof aluminium sulphate at various pHs has been studied and compared with results for a surface water. The clays were selected on the basis of cation‐exchange capacity. The results are discussed with respect to the isoelectric point as an indicant for achieving optimum destabilization with an economically efficient coagulant dose.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02145.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

Chromatographic techniques are used by the authors to show that river‐water pollution can be sufficiently determined with regard to molecular fractions, thereby permitting suitable treatment.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02146.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

Ion‐selective electrodes may be useful for the continuous measurement of water quality throughout water‐treatment and water‐distribution facilities. A basic understanding of ion‐selective‐electrode theory will be helpful to water‐supply engineers and operators.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02147.x

出版商:Wiley    

年代:1975

数据来源: WILEY

摘要:

At no time is a community's water supply ignored. Constant surveillance, which is compulsory, includes sampling and checksampling to determine the quality of the supply. The objective of these stringent procedures is to maintain the best possible quality of drinking water.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1975.tb02148.x

出版商:Wiley    

年代:1975

数据来源: WILEY