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Thermophilic anaerobic digestion of source-sorted household solid waste: the effects of enzyme additions

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Thermophilic anaerobic digestion of source-sorted household solid waste : the effects of enzyme additions. / Rintala, Jukka A.; Ahring, Birgitte K.

In: Applied Microbiology and Biotechnology, Vol. 40, No. 6, 02.1994, p. 916-919.

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Rintala, Jukka A. ; Ahring, Birgitte K. / Thermophilic anaerobic digestion of source-sorted household solid waste : the effects of enzyme additions. In: Applied Microbiology and Biotechnology. 1994 ; Vol. 40, No. 6. pp. 916-919.

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@article{da28074bd491413cbc942f9de261289e,
title = "Thermophilic anaerobic digestion of source-sorted household solid waste: the effects of enzyme additions",
abstract = "Thermophilic (55° C) methanation of source-sorted household solid waste (HSW) was studied in batch and in continuous experiments. Furthermore, the effects of additions of xylanase, lipase, protease and a mixture of these on the methanation were tested. In the batch studies, comparative assays with active and inactive enzymes were used to elucidate the role of the added enzymes. The results showed that the HSW was readily digestible, up to 400-590 mlCH4·g-1 volatile solids (VS) was produced. Only with protease added, at a concentration of 1.1 Anson protease units·kg-1 VS was a higher specific methanogenic activity found with active enzymes compared to inactive (autoclaved) enzymes or without enzyme addition. The methane yield by conversion of the HSW in the batch assays and in the reactor studies was not increased by enzyme additions (enzyme mixture).",
author = "Rintala, {Jukka A.} and Ahring, {Birgitte K.}",
year = "1994",
month = "2",
doi = "10.1007/BF00173999",
language = "English",
volume = "40",
pages = "916--919",
journal = "Applied Microbiology and Biotechnology",
issn = "0175-7598",
publisher = "Springer Verlag",
number = "6",

}

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TY - JOUR

T1 - Thermophilic anaerobic digestion of source-sorted household solid waste

T2 - the effects of enzyme additions

AU - Rintala, Jukka A.

AU - Ahring, Birgitte K.

PY - 1994/2

Y1 - 1994/2

N2 - Thermophilic (55° C) methanation of source-sorted household solid waste (HSW) was studied in batch and in continuous experiments. Furthermore, the effects of additions of xylanase, lipase, protease and a mixture of these on the methanation were tested. In the batch studies, comparative assays with active and inactive enzymes were used to elucidate the role of the added enzymes. The results showed that the HSW was readily digestible, up to 400-590 mlCH4·g-1 volatile solids (VS) was produced. Only with protease added, at a concentration of 1.1 Anson protease units·kg-1 VS was a higher specific methanogenic activity found with active enzymes compared to inactive (autoclaved) enzymes or without enzyme addition. The methane yield by conversion of the HSW in the batch assays and in the reactor studies was not increased by enzyme additions (enzyme mixture).

AB - Thermophilic (55° C) methanation of source-sorted household solid waste (HSW) was studied in batch and in continuous experiments. Furthermore, the effects of additions of xylanase, lipase, protease and a mixture of these on the methanation were tested. In the batch studies, comparative assays with active and inactive enzymes were used to elucidate the role of the added enzymes. The results showed that the HSW was readily digestible, up to 400-590 mlCH4·g-1 volatile solids (VS) was produced. Only with protease added, at a concentration of 1.1 Anson protease units·kg-1 VS was a higher specific methanogenic activity found with active enzymes compared to inactive (autoclaved) enzymes or without enzyme addition. The methane yield by conversion of the HSW in the batch assays and in the reactor studies was not increased by enzyme additions (enzyme mixture).

U2 - 10.1007/BF00173999

DO - 10.1007/BF00173999

M3 - Article

VL - 40

SP - 916

EP - 919

JO - Applied Microbiology and Biotechnology

JF - Applied Microbiology and Biotechnology

SN - 0175-7598

IS - 6

ER -