Developing Better Indicators for Pathogen Presence in Sewage Sludge: Werf Report U1r08 Suresh Pillai

ISBN: 9781780400129

Published: November 4th 2013

ebook

90 pages


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Developing Better Indicators for Pathogen Presence in Sewage Sludge: Werf Report U1r08  by  Suresh Pillai

Developing Better Indicators for Pathogen Presence in Sewage Sludge: Werf Report U1r08 by Suresh Pillai
November 4th 2013 | ebook | PDF, EPUB, FB2, DjVu, AUDIO, mp3, RTF | 90 pages | ISBN: 9781780400129 | 9.74 Mb

Today, more than eight million tons of biosolids are generated annually for land application nationwide. These biosolids contain beneficial plant nutrients, soil conditioners, and may also contain pathogenic bacteria, viruses, protozoa and parasites.MoreToday, more than eight million tons of biosolids are generated annually for land application nationwide. These biosolids contain beneficial plant nutrients, soil conditioners, and may also contain pathogenic bacteria, viruses, protozoa and parasites.

The fate of pathogens is a concern for biosolids generators, applicators, and the general public. The ability to detect the presence of microbial pathogens and the resulting health risks in biosolids is a significant issue confronting the wastewater industry. Ideally, wastewater treatment plants should be able to monitor for specific pathogens in biosolids. Since it is almost impossible to detect and quantify the presence of all possible pathogens in waste matrices, there is a compelling need to identify a suite of indicators that can be used to predict the presence of pathogenic microorganisms in biosolids.

The overall objective of this project was to identify those pathogens and surrogate indicator organisms that are at the highest density in raw sludge and determine their time-temperature-pH relationships in the laboratory under controlled conditions. There were surprisingly low numbers of culturable enteric viruses (median values shown) (



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