摘要:

This column provides news briefs and vignettes of the water industry as of April 1962.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00865.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses Sacramento's problems with planning for water needs. The article states that the most important consideration in planning a major expansion of a water system is to allow time for completion of the project. The article discusses Sacramento's experience with allowing for sufficient time for making a comprehensive study of the existing system, developing a master plan of improvements, and financing and construction. The various phases should be carefully worked out and executed, making use of consulting firms and competent construction engineers. By planning ahead and planning carefully, the growth, health, and prosperity of the community will not be jeopardized by an inadequate water supply.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00854.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses the city of Louisville's (Kentucky) experiences with the joint collection of water and sewer accounts, the methods used to bill and collect the accounts, the methods used to compute the payment for this service, and the effects on the company's public relations.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00855.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This notice corrects a sentence in the last paragraph of column 2 on p. 228 of the article “Flame Photometric Determination of Lithium in Water,” by Marvin J. Fishman (February 1962 JOURNAL, Vol. 54, pp. 228‐234).

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00856.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses utility operating data collected during a short visit to Japan. It includes data for Tokyo, Osaka, Nagoya, Kyoto, Yokohama, and Kobe that were compiled from published reports and from notes taken during interviews with the management of the Tokyo metropolitan utility. The data presented is for water use, water rates, and finances including revenues and expenses.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00857.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses the Philadelphia Water Department's experience with developing and fully integrating a corrosion control program into its design, construction, and operational activities. Corrosion control features were incorporated into all new plans where required; inspectors were specifically trained to make sure that corrosion control facilities were properly installed; and, a programmed study of the existing transmission and distribution system has been undertaken to correct the existing problems. The development, in 4 year's time, of such a broad project in a water system serving the fourth largest city in this country was a major accomplishment.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00858.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses general definitions of reserve and equalizing storage, along with contrasting the basic concepts underlying the intended function of reserve storage and equalizing storage. The article presents several empirical formulas, which can be used in applicable situations to determine the amount of fire reserve storage needed at present or in the future. A statistical method illustrating how present and future equalizing storage needs may be determined is presented, and several general observations are made concerning some of the factors involved in locating reserve or equalizing storage facilities in the distribution system.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00859.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses two valve survey and inspection programs, that differ in methods, by the Inglewood (California) Water Department, a publicly owned utility, and the San Gabriel Valley (California) Water Company, a privately owned utility.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00860.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses the development of a procedure for the determination of alkyl benzene sulfonates (ABS), which is based on methylene blue but is perhaps more dependable than the Standard Method. The study found that a mixture of strong chromic acid and sulfuric acid would not measurably attack ABS if the operating temperature was kept below about 45°C and the time of treatment was not extended beyond about 30 min. It appeared reasonable that other organic materials would be oxidized by the chrome sulfuric acid, perhaps after hydrolysis of organic sulfates, phosphates, and the like in the strongly acid medium, and that volatile interfering inorganic anions such as chloride and nitrate could be eliminated by boiling. Other investigations indicated that chloride also might be vaporized in the process as chromyl chloride. Excess chromic acid was reduced to trivalent chromium salt and the resultant mixture subjected to the methylene blue method.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00861.x

出版商:Wiley    

年代:1962

数据来源: WILEY

摘要:

This article discusses a situation that occurred in May 1961 when the threshold odors on the Cedar River in Iowa reached 400 for the first time and a highly objectionable taste was present. The tremendous flood on the Cedar River in March of that year could have affected the odor and taste problem which developed. By the end of May, algae concentrations rose to about 18,000 organisms per milliliter. The most successful treatment consisted of adding permanganate at the intake, and permitting it to pass through the primary mixers and clarifiers without adding other chemicals. Alum coagulant was applied in the secondary mixers along with lime for pH adjustment. Carbon was added as the water passed out of the mixers and entered the final clarifiers. The ammonia and chlorine application point was changed to the clear well after filtration, and the permanganate dosage was adjusted so that the permanganate demand of the lime and coagulant dispelled the remaining color before addition of the carbon.

ISSN:0003-150X    

DOI:10.1002/j.1551-8833.1962.tb00862.x

出版商:Wiley    

年代:1962

数据来源: WILEY