|
1. |
Preparation Reduces the Effect And Frequency of Interruptions |
|
Opflow,
Volume 1,
Issue 7,
1975,
Page 1-4
Preview
|
PDF (159KB)
|
|
摘要:
Whether a utility's supply source is groundwater or surface water, drought may occur, so the sinking of a second well should be considered. Utilities should also be aware of debris accumulation or silting of streams and lakes. Intakes on navigable waterways should be clearly marked so water vehicles do not hit them. Testing for pollutants should be part of a regular program of maintenance. Machinery failures can also occur, so preventive maintenance is advised.
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1975.tb00813.x
出版商:Wiley
年代:1975
数据来源: WILEY
|
2. |
Certification Corner |
|
Opflow,
Volume 1,
Issue 7,
1975,
Page 2-7
Preview
|
PDF (141KB)
|
|
摘要:
Lime soda softening, soft water, benefits of lime soda, magnesium hardness, and noncarbonate hardness of water are some of the topics of questions in this month's “Certification Corner.”
ISSN:0149-8029
DOI:10.1002/j.1551-8701.1975.tb00814.x
出版商:Wiley
年代:1975
数据来源: WILEY
|
|