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Impact of animal manure separation technologies on steriod hormone distribution: consequences for agricultural practices
University of California Berkeley.
University of Copenhagen.
Kristianstad University, School of Education and Environment, Avdelningen för Naturvetenskap.
University of Copenhagen.
Show others and affiliations
2014 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

When steroid hormones are emitted into the environment, they may have harmful effects on the reproduction system of aquatic life. Until now, research has primarily focused on human excretion, demonstrating that steroid hormones reach the aquatic environment due to insufficient removal in waste water treatment processes. However more recently, it has been revealed that agricultural practices also may add to the environmental burden of steroid hormones. So far, research activities have mainly focused on steroid estrogens, but also androgens, progestagens and glucocorticoids, expressed in the vertebrate steroidogenesis, may occur at substantial levels in animal manure and should be addressed. In agricultural practices the animal manure can be applied to the soil as raw manure, but also as a solid or liquid manure fraction, since current livestock production facilities utilizes a recently developed technology, which separates raw animal manure into a solid and a liquid fraction.This technology offers an improved handling and refined distribution of the manure nutrients to the farmlands and the possibility to reduce the environmental impact of manure nutrients, especially avoiding the surplus load of phosphorous. In the present work we investigated the distribution of 9 steroid hormones (pregnenolone, progesterone, dehydroepiandrosterone, androstenedione, testosterone, dihydrotestosterone, estrone, 17α-estradiol and 17β-estradiol) in raw manure and manure separates from 10 to 15 different pig farms in Denmark utilizing 4 different separation technologies. Furthermore, we investigated a possible relationship between the steroid hormone concentration and the different manure fractions and separation technologies. The chemical steroid hormone analysis was done by inverse and integrated clean-up pressurized liquid extraction, and further cleaned by a two step solid-phase extraction before derivatization and finally analyzed by GC-MS/MS.It was found that the steroid hormones were predominant in the solid manure separate calling for manure management strategies to reduce the content of steroid hormones in separated manure solid fraction. This could potentially be achieved through composting or anaerobic digestion for biogas production of the solid fraction; however, the effects of these technologies on steroid hormones need to be verified.

Place, publisher, year, edition, pages
2014.
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:hkr:diva-14934OAI: oai:DiVA.org:hkr-14934DiVA: diva2:860724
Conference
SETAC North America 35th Annual Meeting, Vancouver, Canada, November 9-13, 2014
Available from: 2015-10-13 Created: 2015-10-13 Last updated: 2015-10-13Bibliographically approved

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http://www.setac.org/event/id/244645/SETAC-North-America-35th-Annual-Meeting.htm

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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