Standard price: £29.00

Currency:

Available as an ebook:
Please purchase via www.iwaponline.comOpens in new window

Also part of Water Intelligence Online Digital Reference Library

Standard ePrice: £29.00

+ VAT

Purchase ebook

Author(s): MJ Higgins
S Murthy

Publication Date: 30/09/2006

Pages: 72

ISBN13: 9781843397366

eISBN: 9781843397366

WERF Report 03-CTS-13T

OverviewExpand or collapse me

In a recent study of anaerobically digested solids from seven wastewater treatment facilities, counts of fecal coliform bacteria increased after dewatering at four of the facilities tested. Immediately after centrifugation, fecal coliform counts increased from very low or nondetectable levels, often by as much as several orders of magnitude, at the four facilities where increases were observed. This study only looked at seven facilities and only facilities using anaerobic digestion and high-solids centrifugation for dewatering; numerous other stabilization and dewatering processes are also widely used.

The study identifies some potential control methods and mitigation strategies that utilities could use to reduce coliform levels and provides information on the following:

  • Procedures and test methods that can be applied to assure measures for pathogen reduction are being achieved.
  • Potential mitigation options (e.g., changes to digester hydraulics, dewatering chemical additions, or longer-term storage) that might be considered by a facility to achieve desired reductions in both pathogenic and indicator organisms.

This book is out of print. If you need information about this, please contact [email protected].

Share this page:

The latest from @IWApublishing

Until the 31st of July, discover our spotlight on water policy and get 20% off key titles in the area, including 'R… https://t.co/OV42q82Ne3 16 hours 59 min ago
Great exposure for this important report from our journal. Read more about development and hydropower… https://t.co/mKU5PdVKx0 1 day 13 hours ago
RT : Share your vision for water and peace! Water touches many aspects of our lives, while also fostering cooperation a… https://t.co/EvD7WZJTSr 1 day 18 hours ago