Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water

H. Hartmann, Irini Angelidaki, Birgitte Kiær Ahring

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A new concept of a wet anaerobic digestion treatment of the organic fraction of municipal solid waste (OFMSW) is investigated. Once the waste is diluted with water, the entire liquid fraction of the effluent is recirculated and used as process water for dilution of the waste. This enables a well-mixed process without additional water supply. A methane yield of 400 and 445 ml/gVS from OFMSW was achieved in batch and reactor experiments, respectively. Reactor performance with 15 days retention time and an organic loading rate of 4.5 gVS/ld was stable with low VFA concentrations and a VS reduction of 70-80% when treating 100% OFMSW, diluted by 1:5. Recirculation of a larger fraction of the effluent makes removal of ammonia necessary in order to avoid inhibition of the process. The present process did not show degradation of the plasticizer DEHP (bis-2-ethylhexyl-phthalate) under thermophilic conditions after a period of 140 days.
Original languageEnglish
Title of host publication9th World Congress on Anaerobic Digestion
Publication date2001
Pages301-304
Publication statusPublished - 2001
Event9th World Congress : Anaerobic Digestion - Antwerpen, Belgium
Duration: 2 Sep 20016 Sep 2001
Conference number: 9

Conference

Conference9th World Congress : Anaerobic Digestion
Number9
CountryBelgium
CityAntwerpen
Period02/09/200106/09/2001

Keywords

  • xenobiotics degradation
  • recirculation
  • process water
  • anaerobic digestion
  • organic fraction of municipal solid waste

Cite this

Hartmann, H., Angelidaki, I., & Ahring, B. K. (2001). Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water. In 9th World Congress on Anaerobic Digestion (pp. 301-304)
Hartmann, H. ; Angelidaki, Irini ; Ahring, Birgitte Kiær. / Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water. 9th World Congress on Anaerobic Digestion. 2001. pp. 301-304
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abstract = "A new concept of a wet anaerobic digestion treatment of the organic fraction of municipal solid waste (OFMSW) is investigated. Once the waste is diluted with water, the entire liquid fraction of the effluent is recirculated and used as process water for dilution of the waste. This enables a well-mixed process without additional water supply. A methane yield of 400 and 445 ml/gVS from OFMSW was achieved in batch and reactor experiments, respectively. Reactor performance with 15 days retention time and an organic loading rate of 4.5 gVS/ld was stable with low VFA concentrations and a VS reduction of 70-80{\%} when treating 100{\%} OFMSW, diluted by 1:5. Recirculation of a larger fraction of the effluent makes removal of ammonia necessary in order to avoid inhibition of the process. The present process did not show degradation of the plasticizer DEHP (bis-2-ethylhexyl-phthalate) under thermophilic conditions after a period of 140 days.",
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Hartmann, H, Angelidaki, I & Ahring, BK 2001, Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water. in 9th World Congress on Anaerobic Digestion. pp. 301-304, 9th World Congress : Anaerobic Digestion, Antwerpen, Belgium, 02/09/2001.

Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water. / Hartmann, H.; Angelidaki, Irini; Ahring, Birgitte Kiær.

9th World Congress on Anaerobic Digestion. 2001. p. 301-304.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

TY - GEN

T1 - Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water

AU - Hartmann, H.

AU - Angelidaki, Irini

AU - Ahring, Birgitte Kiær

PY - 2001

Y1 - 2001

N2 - A new concept of a wet anaerobic digestion treatment of the organic fraction of municipal solid waste (OFMSW) is investigated. Once the waste is diluted with water, the entire liquid fraction of the effluent is recirculated and used as process water for dilution of the waste. This enables a well-mixed process without additional water supply. A methane yield of 400 and 445 ml/gVS from OFMSW was achieved in batch and reactor experiments, respectively. Reactor performance with 15 days retention time and an organic loading rate of 4.5 gVS/ld was stable with low VFA concentrations and a VS reduction of 70-80% when treating 100% OFMSW, diluted by 1:5. Recirculation of a larger fraction of the effluent makes removal of ammonia necessary in order to avoid inhibition of the process. The present process did not show degradation of the plasticizer DEHP (bis-2-ethylhexyl-phthalate) under thermophilic conditions after a period of 140 days.

AB - A new concept of a wet anaerobic digestion treatment of the organic fraction of municipal solid waste (OFMSW) is investigated. Once the waste is diluted with water, the entire liquid fraction of the effluent is recirculated and used as process water for dilution of the waste. This enables a well-mixed process without additional water supply. A methane yield of 400 and 445 ml/gVS from OFMSW was achieved in batch and reactor experiments, respectively. Reactor performance with 15 days retention time and an organic loading rate of 4.5 gVS/ld was stable with low VFA concentrations and a VS reduction of 70-80% when treating 100% OFMSW, diluted by 1:5. Recirculation of a larger fraction of the effluent makes removal of ammonia necessary in order to avoid inhibition of the process. The present process did not show degradation of the plasticizer DEHP (bis-2-ethylhexyl-phthalate) under thermophilic conditions after a period of 140 days.

KW - xenobiotics degradation

KW - recirculation

KW - process water

KW - anaerobic digestion

KW - organic fraction of municipal solid waste

M3 - Article in proceedings

SP - 301

EP - 304

BT - 9th World Congress on Anaerobic Digestion

ER -

Hartmann H, Angelidaki I, Ahring BK. Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water. In 9th World Congress on Anaerobic Digestion. 2001. p. 301-304