oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
  • text
  • asciidoc
  • rtf
Degradation of diclofenac and triclosan residues in sewage sludge compost
Tartu College, Tallinn University of Technology, Tartu, Estonia.
Tartu College, Tallinn University of Technology, Tartu, Estonia.
Tartu College, Tallinn University of Technology, Tartu, Estonia.
Estonian University of Life Sciences, Tartu, Estonia.
Show others and affiliations
2017 (English)In: Agronomy Research, ISSN 1406-894X, Vol. 15, no 2, p. 395-405Article in journal (Refereed) Published
Abstract [en]

Land application of sewage sludge compost is an important and efficient tool in the remediation of industrial landscapes and agricultural soils in Estonia. A number of studies have shown that, as a rule, pharmaceuticals and personal care products (PPCPs) are neither completely removed by sewage treatment, nor completely degraded in the environment. In this study, degradation rates of diclofenac sodium (DFC) and triclosan (TCS) were determined during sewage sludge composting. Anaerobically digested and dewatered sewage sludge was mixed with sawdust at two different ratios (1:2 and 1:3 sludge/sawdust, v:v). Then aerobic composting was carried out. These ratios were chosen on the basis of previous studies on sewage sludge composting with different bulking agents. The initial concentration of DFC and TCS was 2 mg kg-1 in relation to dry weight (dw). Low quantities of the studied pharmaceuticals were present in sewage sludge that was used for preparing the compost mixtures used in our experiments. The background concentrations of DFC and TCS were never equal to zero. The results showed that the difference between sewage sludge and bulking agent ratios (1:2 vs 1:3) in compost samples did not significantly affect temperature profiles during the experiment. The degradation of pharmaceuticals was more complete in the compost samples where the ratio of bulking agent was higher (1:3 by volume). The average degradation level (in all compost mixtures) was 95% for DFC and 68% for TCS. Pharmaceuticals entering into the soil may affect microbial activity, plant growth and development, and may have adverse effects on living organisms.

Place, publisher, year, edition, pages
Eesti Pollumajandusulikool , 2017. Vol. 15, no 2, p. 395-405
Keywords [en]
sewage sludge compost, sawdust, fertilizers, diclofenac, triclosan
National Category
Analytical Chemistry
Research subject
Analytical Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-61887Scopus ID: 2-s2.0-85019607901OAI: oai:DiVA.org:oru-61887DiVA, id: diva2:1150599
Note

Funding Agency:

Environmental Investment Centre of Estonia

Available from: 2017-10-19 Created: 2017-10-19 Last updated: 2017-10-20Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

ScopusDegradation of diclofenac and triclosan residues in sewage sludge compost

Authority records BETA

Aro, Rudolf

Search in DiVA

By author/editor
Aro, Rudolf
Analytical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 76 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
  • text
  • asciidoc
  • rtf