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Reduction of pathogens in biosolids ...

Dominguez Sanchez, Teodulo.

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Reduction of pathogens in biosolids in Mexico using solar drying beds.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Reduction of pathogens in biosolids in Mexico using solar drying beds./
作者:	Dominguez Sanchez, Teodulo.
面頁冊數:	99 p.
附註:	Source: Masters Abstracts International, Volume: 44-02, page: 1010.
Contained By:	Masters Abstracts International44-02.
標題:	Engineering, Environmental. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1429013
ISBN:	9780542334412

Reduction of pathogens in biosolids in Mexico using solar drying beds.
Dominguez Sanchez, Teodulo.

Reduction of pathogens in biosolids in Mexico using solar drying beds. - 99 p.

Source: Masters Abstracts International, Volume: 44-02, page: 1010.

Thesis (M.S.)--The University of Arizona, 2005.

In this study, die-off patterns of helminth ova, fecal coliforms, and Salmonella spp. in biosolids were documented using three small-scale sand drying beds located in a greenhouse. Treatments involved tilling the biosolids with differing frequencies. The results indicate that the inactivation rate for helminth ova was 0.88, 0.55, and 0.22 eggs/4 g TS day-1 for the intensively-tilled, moderately-tilled, and control beds, respectively. Achievement of Class A criteria was only possible in the intensively-tilled bed by Day 70 of the experiment. Salmonella spp. were inactivated to Class A levels in 9 days for the intensively and moderately-tilled beds. Regrowth of Salmonella spp. occurred thereafter in all beds, but high levels were seen only in the control bed. Fecal coliforms reached Class A criteria late in the experiment. Tilling treatments enhanced the inactivation rate of helminth ova and offer a potentially cost-effective method of pathogen reduction.

ISBN: 9780542334412Subjects--Topical Terms:

783782
Engineering, Environmental.

Reduction of pathogens in biosolids in Mexico using solar drying beds.
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