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Efficacy of enhanced coagulation & d...

Mayer, Brooke Kay.

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Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses./
作者:	Mayer, Brooke Kay.
面頁冊數:	197 p.
附註:	Source: Dissertation Abstracts International, Volume: 69-03, Section: B, page: 1805.
Contained By:	Dissertation Abstracts International69-03B.
標題:	Biology, Microbiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3304862
ISBN:	9780549513063

Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses.
Mayer, Brooke Kay.

Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses. - 197 p.

Source: Dissertation Abstracts International, Volume: 69-03, Section: B, page: 1805.

Thesis (Ph.D.)--Arizona State University, 2008.

This study assessed the treatability of the United States Environmental Protection Agency's Contaminant Candidate List (CCL) viruses (adenovirus, calicivirus, coxsackievirus, and echovirus) using enhanced coagulation and ultraviolet (UV) disinfection.

ISBN: 9780549513063Subjects--Topical Terms:

1017734
Biology, Microbiology.

Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses.
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245 1 0 $a Efficacy of enhanced coagulation & disinfection for treatment of enteric viruses.
300 $a 197 p.
500 $a Source: Dissertation Abstracts International, Volume: 69-03, Section: B, page: 1805.
502 $a Thesis (Ph.D.)--Arizona State University, 2008.
520 $a This study assessed the treatability of the United States Environmental Protection Agency's Contaminant Candidate List (CCL) viruses (adenovirus, calicivirus, coxsackievirus, and echovirus) using enhanced coagulation and ultraviolet (UV) disinfection.
520 $a Bench-scale jar testing demonstrated that optimal removal of dissolved organic carbon (DOC) was achieved using 40 mg/L ferric chloride and a pH between 5.0 and 6.5. Under these conditions, maximum removals of 56% DOC, 2.6 logs of adenovirus, 2.5 logs of feline calicivirus, 3.0 logs of coxsackievirus, 1.8 logs of echovirus, 2.5 logs of poliovirus, 2.7 logs of MS2, 1.7 logs of PRD1, 1.7 logs of phi-X174, and 2.5 logs of fr were observed. Pilot-scale removals exceeded jar test removals for the bacteriophages, indicating that jar testing provides a conservative estimate of pilot plant removals. The results demonstrate that enhanced coagulation reduces the potential for disinfection byproduct formation by (1) removing precursor material such as DOC, and (2) removing viruses prior to disinfection such that the microbial load is reduced.
520 $a The removals of coxsackievirus and echovirus were similar to poliovirus, which may contribute to future CCL and regulatory determinations. The bacteriophages appear to be suitable surrogates for the physical removal of the CCL viruses. For calicivirus, MS2 and fr were most representative; for coxsackievirus, fr and phi-X174 were more representative; and for echovirus, M52 and PRD1 were most appropriate. The bacteriophages are not recommended as adenovirus surrogates. For the CCL viruses as a group, MS2 may be the most appropriate surrogate since it provides at least a conservative estimate of the physical removals of calicivirus, coxsackievirus, and echovirus.
520 $a An alternative integrated cell culture-quantitative polymerase chain reaction (ICC-qRTPCR) assay was developed for the simultaneous quantification of coxsackievirus, echovirus, and poliovirus in disinfection studies. The UV dose requirements determined using the assay were comparable (3-log inactivation at approximately 30--40 millijoules per square centimeter) to previous reports. The ICC-qRTPCR assay offers significant time and material savings as well as accuracy and reproducibility benefits compared to conventional in-vitro cell culture assays thereby providing a practical alternative for the quantification of inactivation in disinfection studies.
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650 4 $a Engineering, Civil. $3 783781
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650 4 $a Environmental Sciences. $3 676987
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