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Detoxifying CO2 capture reclaimer waste by anaerobic digestion

Abstract

The decrease in toxicity of carbon capture reclaimer monoethanolamine (MEA) waste (MEAw) during anaerobic degradation of such waste together with easily degradable organics was investigated. Samples were collected from a bioreactor at steady state with 86 % organic chemical oxygen demand removal at room temperature, which had been running on MEAw for 2 years. The toxicity of the digester effluents were 126, 42 and 10 times lower than that of the MEAw to the tested freshwater trophic groups of Pseudokirchneriella subcapitata, Daphnia magna and embryos of Danio rerio, respectively. The toxicity of the tested taxonomic groups after anaerobic digestion was mainly attributed to the ammonia generated by the degradation of MEAw.

Category

Academic article

Client

  • Research Council of Norway (RCN) / 199874

Language

English

Author(s)

Affiliation

  • University of South-Eastern Norway
  • SINTEF Industry / Process Technology
  • Norwegian Institute of Water Research

Year

2013

Published in

Applied Biochemistry and Biotechnology (ABAB)

ISSN

0273-2289

Publisher

Springer

Volume

172

Issue

2

Page(s)

776 - 783

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