Development of a Metals Toxicity Protocol for Biosolids

WERF Report 00-PUM-6

Ebook only

Available as an ebook

Please purchase via www.iwaponline.comOpens in new window

Also part of Water Intelligence Online Digital Reference Library

Standard ePrice: £28.00


Access ebook

Publication Date: 31/03/2006

Pages: 146

ISBN13: 9781843396895

eISBN: 9781843396895

Download book flyer Print page

Sixty percent of all wastewater treatment biosolids are recycled, compared to 30% in 1990. Environmental biosolids management systems are now commonly implemented for municipalities. The promotion of beneficial use of biosolids has transformed our historic view of processed wastewater treatment residuals. Instead of wastes requiring disposal, we now view biosolids as valuable manufactured products. Land application of biosolids has proven to be beneficial because organic matter and nutrients can be used effectively for enhancement of agricultural crop production. 

There is concern, however, about the potential for degradation of soil quality. Although thorough investigations of potential risk from biosolids have generally indicated that land application does not threaten human or ecosystem health, questions continue to arise concerning the safety of biosolids recycling.

This project was initiated to evaluate the toxicity resulting from the amendment of soils with biosolids from municipal wastewater treatment. Toxicity was evaluated using standard tests including earthworm mortality, growth, and reproduction; seedling germination and root elongation; microbial respiration; and nematode mortality reproduction. In addition, chemical lability tests for metals were employed including water soluble, exchangeable, and metals extractable by the physiologically based extraction test (PBET).

This report is available as a pay-per-view product only.

P Schwab

K Banks

J Alleman

M Switzenbau

The latest from @IWApublishing

RT : It is very satisfying how a clear and decided strategy favouring open access is placing IWA journals higher and hig… 17 hours 40 min ago
📣Journal news! Blue-Green Systems now has its first Our youngest journal has… 19 hours 43 min ago
Submit to this Special Issue of AQUA: Building Trust with in Supply Managemen… 1 day 14 hours ago