摘要:

Because of their rugged design and low maintenance, propeller meters are durable and economical tools for measuring the velocity of raw water flowing through closed pipes. Discussed in the article are how they work, applications, selection, installation, maintenance, and troubleshooting.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1990.tb00218.x

出版商:Wiley    

年代:1990

数据来源: WILEY

摘要:

Santa Barbara, California, is finding water conservation increasingly important. Many water conservation efforts focus on reducing demand, but reducing waste on the supply side is just as beneficial. The project at Sheffield Reservoir is briefly discussed.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1990.tb00215.x

出版商:Wiley    

年代:1990

数据来源: WILEY

摘要:

It is possible to save significantly on electrical costs by altering standard operating procedures to lower demand charges. By closely monitoring the power bill, operators can track peak demands, then takes steps to flatten the peaks. An operator can directly affect power costs by controlling how many pumps or blowers are run at once. Steps taken by the City of New Port Richey, Florida resulted in savings of approximately $900 per month.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1990.tb00219.x

出版商:Wiley    

年代:1990

数据来源: WILEY

摘要:

If the filter beds at your treatment plant are plagued with mudballs and other heavy debris, an eductor and special shovel can help you keep them clean. Materials and costs for constructing the eductor are discussed in the article.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1990.tb00217.x

出版商:Wiley    

年代:1990

数据来源: WILEY