摘要:

The Semper Water Treatment Plant in Westminster, Colorado has taken an innovative approach to plant operations by implementing a 12‐hour shift schedule and by installing tube settlers for use in the sedimentation process. The 12‐hour shift has resulted in lower labor costs and higher‐quality plant operations. The tube settlers have resulted in cost savings for alum and lime, in a significant decrease in backwash water required, and in a 28 percent decrease in finish water turbidity.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00672.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

Questions on sodium hypochlorite dosage calculations, rate‐of‐flow controllers, breakpoint chlorination symptoms, “artesian water,” use of caustic soda (sodium hydroxide) to prevent corrosive water, and matching of chemical formulae with generic names are included in this portion of “Certification Corner.”

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00674.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

This article describes various types of screwdrivers and procedures for their proper and safe uses.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00675.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

This portion of “Math for Operators” covers concentration and dilution problems. Explanations and examples of concentration by weight, the general law of concentration and the dilution rectangle are included.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00676.x

出版商:Wiley    

年代:1980

数据来源: WILEY

摘要:

OpFlow Editorial Advisory Committee member Herb Waite is working for two years as a treatment plant specialist with Public Administration Service in Addis Ababa, Ethiopia. The former water treatment instructor at the Community College of Denver (Colorado) is concerned mainly with operator training during the project.

ISSN:0149-8029    

DOI:10.1002/j.1551-8701.1980.tb00677.x

出版商:Wiley    

年代:1980

数据来源: WILEY