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Development, testing and application...

Cho, Seongho.

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Development, testing and application of a real-time sensing network for monitoring chemical contamination events in a drinking water distribution system.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Development, testing and application of a real-time sensing network for monitoring chemical contamination events in a drinking water distribution system./
作者:	Cho, Seongho.
面頁冊數:	205 p.
附註:	Adviser: Ken Carlson.
Contained By:	Dissertation Abstracts International68-08B.
標題:	Engineering, Civil. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3279499
ISBN:	9780549202400

Development, testing and application of a real-time sensing network for monitoring chemical contamination events in a drinking water distribution system.
Cho, Seongho.

Development, testing and application of a real-time sensing network for monitoring chemical contamination events in a drinking water distribution system. - 205 p.

Adviser: Ken Carlson.

Thesis (Ph.D.)--Colorado State University, 2007.

Routine on-line monitoring which detects the change of water quality by both chemicals and biofilm of drinking water distribution systems offers potential in eliminating the danger of purposeful contamination events.

ISBN: 9780549202400Subjects--Topical Terms:

783781
Engineering, Civil.

Development, testing and application of a real-time sensing network for monitoring chemical contamination events in a drinking water distribution system.
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500 $a Source: Dissertation Abstracts International, Volume: 68-08, Section: B, page: 5420.
502 $a Thesis (Ph.D.)--Colorado State University, 2007.
520 $a Routine on-line monitoring which detects the change of water quality by both chemicals and biofilm of drinking water distribution systems offers potential in eliminating the danger of purposeful contamination events.
520 $a One of the objectives of this research was to evaluate on-line UV254 as a surrogate for TOC analysis to detect contaminants in the distribution system. UV254 has a lower cost than on-line TOC analysis or grab sampling techniques. Seven contaminants were monitored by measuring common water quality parameters such as conductivity, pH, chlorine residual, turbidity, TOC, and UV254. Results indicate that the seven chemical contaminants can be detected at relatively low concentrations with routine on-line monitoring. Some (aldicarb, sodium fluoroacetate, sodium cyanide) of the seven chemical contaminants can be detected below a concentration that will cause significant health impacts.
520 $a Because of the insensitivity of the turbidimeter, the indigenous biofilm in the presence of toxic chemicals may provide an effective, indirect surrogate response with either turbidity or UV254. The hypothesis is that, if toxic chemicals are added to the distribution system, the biofilm would die and slough off to an extent that would change the UV254 absorbance and light scattering of the water so that relatively inexpensive monitors could detect the event. This hypothesis was proven to be correct and turbidity was found to be an excellent indirect monitor for intentional contamination events.
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