Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment

Eva Eriksson, Kresten Ole Kusk, Mie Barrett Sørensen, Cevilie Møller Kudahl, Åsa Davidsson

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Abstract

Application of sludge from wastewater treatment plants (WWTPs) on agricultural land is an approach for nutrient recycling that rise challenges due to recalcitrant and harmful pollutants. In this study we assessed the feasibility of a seed germination test to evaluate sludge ecotoxicity and compared germination responses from two test parameters, root elongation and seed germination (sprouts elongation) of the barley (Hordeum vulgare). 2nd objective was to evaluate sewage sludge pre-treatments at batch-scale of sludge samples from two WWTPs using anaerobic digestion, and thermal and ozonation pre-treatments. Glyphosate and eco-labelled soil were used as references. Inhibition of germination of seeds exposed to the glyphosate and sludge was registered and thus germination was successfully applied for sludge ecotoxicity assessment, and using the root elongation as the end-point was both faster and more precise than the sprout elongation. In comparison of pre-treated raw samples and pre-treaded and subsequently digested sludge the effects of the pre-treatments were limited and hence, the anaerobic digestion in it-self gave the foremost detoxification.
Original languageEnglish
Publication date2013
Number of pages8
Publication statusPublished - 2013
Event1st International IWA Conference on Holistic Sludge Management - Västerås, Sweden
Duration: 6 May 20138 May 2013
Conference number: 1
http://www.hsm2013.se/

Conference

Conference1st International IWA Conference on Holistic Sludge Management
Number1
CountrySweden
CityVästerås
Period06/05/201308/05/2013
Internet address

Keywords

  • Detoxification
  • Growth inhibition
  • Ozonation
  • Sewage sludge
  • Thermal treatment
  • Toxic responses

Cite this

Eriksson, E., Kusk, K. O., Barrett Sørensen, M., Møller Kudahl, C., & Davidsson, Å. (2013). Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment. Paper presented at 1st International IWA Conference on Holistic Sludge Management, Västerås, Sweden.
Eriksson, Eva ; Kusk, Kresten Ole ; Barrett Sørensen, Mie ; Møller Kudahl, Cevilie ; Davidsson, Åsa. / Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment. Paper presented at 1st International IWA Conference on Holistic Sludge Management, Västerås, Sweden.8 p.
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abstract = "Application of sludge from wastewater treatment plants (WWTPs) on agricultural land is an approach for nutrient recycling that rise challenges due to recalcitrant and harmful pollutants. In this study we assessed the feasibility of a seed germination test to evaluate sludge ecotoxicity and compared germination responses from two test parameters, root elongation and seed germination (sprouts elongation) of the barley (Hordeum vulgare). 2nd objective was to evaluate sewage sludge pre-treatments at batch-scale of sludge samples from two WWTPs using anaerobic digestion, and thermal and ozonation pre-treatments. Glyphosate and eco-labelled soil were used as references. Inhibition of germination of seeds exposed to the glyphosate and sludge was registered and thus germination was successfully applied for sludge ecotoxicity assessment, and using the root elongation as the end-point was both faster and more precise than the sprout elongation. In comparison of pre-treated raw samples and pre-treaded and subsequently digested sludge the effects of the pre-treatments were limited and hence, the anaerobic digestion in it-self gave the foremost detoxification.",
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Eriksson, E, Kusk, KO, Barrett Sørensen, M, Møller Kudahl, C & Davidsson, Å 2013, 'Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment', Paper presented at 1st International IWA Conference on Holistic Sludge Management, Västerås, Sweden, 06/05/2013 - 08/05/2013.

Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment. / Eriksson, Eva; Kusk, Kresten Ole; Barrett Sørensen, Mie; Møller Kudahl, Cevilie; Davidsson, Åsa.

2013. Paper presented at 1st International IWA Conference on Holistic Sludge Management, Västerås, Sweden.

Research output: Contribution to conferencePaperResearchpeer-review

TY - CONF

T1 - Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment

AU - Eriksson, Eva

AU - Kusk, Kresten Ole

AU - Barrett Sørensen, Mie

AU - Møller Kudahl, Cevilie

AU - Davidsson, Åsa

PY - 2013

Y1 - 2013

N2 - Application of sludge from wastewater treatment plants (WWTPs) on agricultural land is an approach for nutrient recycling that rise challenges due to recalcitrant and harmful pollutants. In this study we assessed the feasibility of a seed germination test to evaluate sludge ecotoxicity and compared germination responses from two test parameters, root elongation and seed germination (sprouts elongation) of the barley (Hordeum vulgare). 2nd objective was to evaluate sewage sludge pre-treatments at batch-scale of sludge samples from two WWTPs using anaerobic digestion, and thermal and ozonation pre-treatments. Glyphosate and eco-labelled soil were used as references. Inhibition of germination of seeds exposed to the glyphosate and sludge was registered and thus germination was successfully applied for sludge ecotoxicity assessment, and using the root elongation as the end-point was both faster and more precise than the sprout elongation. In comparison of pre-treated raw samples and pre-treaded and subsequently digested sludge the effects of the pre-treatments were limited and hence, the anaerobic digestion in it-self gave the foremost detoxification.

AB - Application of sludge from wastewater treatment plants (WWTPs) on agricultural land is an approach for nutrient recycling that rise challenges due to recalcitrant and harmful pollutants. In this study we assessed the feasibility of a seed germination test to evaluate sludge ecotoxicity and compared germination responses from two test parameters, root elongation and seed germination (sprouts elongation) of the barley (Hordeum vulgare). 2nd objective was to evaluate sewage sludge pre-treatments at batch-scale of sludge samples from two WWTPs using anaerobic digestion, and thermal and ozonation pre-treatments. Glyphosate and eco-labelled soil were used as references. Inhibition of germination of seeds exposed to the glyphosate and sludge was registered and thus germination was successfully applied for sludge ecotoxicity assessment, and using the root elongation as the end-point was both faster and more precise than the sprout elongation. In comparison of pre-treated raw samples and pre-treaded and subsequently digested sludge the effects of the pre-treatments were limited and hence, the anaerobic digestion in it-self gave the foremost detoxification.

KW - Detoxification

KW - Growth inhibition

KW - Ozonation

KW - Sewage sludge

KW - Thermal treatment

KW - Toxic responses

M3 - Paper

ER -

Eriksson E, Kusk KO, Barrett Sørensen M, Møller Kudahl C, Davidsson Å. Barley Seed Germination/Root Elongation Toxicity Test For Evaluation Of Sludge Pre-Treatment. 2013. Paper presented at 1st International IWA Conference on Holistic Sludge Management, Västerås, Sweden.