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

H. Hartmann; Irini Angelidaki; Birgitte Kiær Ahring

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 proceeding › Article in proceedings › Research › peer-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 language	English
Title of host publication	9th World Congress on Anaerobic Digestion
Publication date	2001
Pages	301-304
Publication status	Published - 2001
Event	9th World Congress Anaerobic Digestion 2001 - Antwerp, Belgium Duration: 2 Sept 2001 → 6 Sept 2001 Conference number: 9

Conference

Conference	9th World Congress Anaerobic Digestion 2001
Number	9
Country/Territory	Belgium
City	Antwerp
Period	02/09/2001 → 06/09/2001

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste With Recirculation of Process Water",

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.",

keywords = "xenobiotics degradation, recirculation, process water, anaerobic digestion, organic fraction of municipal solid waste",

author = "H. Hartmann and Irini Angelidaki and Ahring, {Birgitte Ki{\ae}r}",

year = "2001",

language = "English",

pages = "301--304",

booktitle = "9th World Congress on Anaerobic Digestion",

note = "9th World Congress Anaerobic Digestion 2001 ; Conference date: 02-09-2001 Through 06-09-2001",

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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

N1 - Conference code: 9

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

T2 - 9th World Congress Anaerobic Digestion 2001

Y2 - 2 September 2001 through 6 September 2001

ER -

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

Abstract

Conference

Keywords

UN SDGs

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