Wood ash for application in municipal biowaste composting

Jukka M. Kurola (Corresponding Author), Mona Arnold, Merja H. Kontro, Matti Talves, Martin Romantschuk

Research output: Contribution to journalArticleScientificpeer-review

29 Citations (Scopus)

Abstract

This study aimed to clarify the impacts of pH control by wood ash amendment on biowaste composting processes. To achieve this, fresh source separated municipal biowaste was mixed with low doses (2–8% wt/vol) of wood ash and processed in a pilot and large-scale composting systems. The results indicated a correlation between a low initial pH and delay in the early rise of the process temperature. Wood ash elevated the composting temperatures and pH, and stimulated the mineralisation both in the pilot scale and the industrial large-scale processes. According to the results addition of amounts of 4–8% wood ash is sufficient for efficient biowaste composting process and yields a safe end product. However, to minimise the environmental risk for heavy metal contamination, and meet the criteria for the limit values of the impurities in wood ash, strict quality control of the applied wood ashes should be implemented.
Original languageEnglish
Pages (from-to)5214-5220
Number of pages7
JournalBioresource Technology
Volume102
Issue number8
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Ashes
wood ash
Composting
composting
Wood
Heavy Metals
environmental risk
quality control
Heavy metals
Quality control
Contamination
temperature
heavy metal
Impurities
mineralization
Temperature

Keywords

  • Biowaste
  • Large-scale composting
  • pH control
  • Odour formation
  • Fly ash

Cite this

Kurola, Jukka M. ; Arnold, Mona ; Kontro, Merja H. ; Talves, Matti ; Romantschuk, Martin. / Wood ash for application in municipal biowaste composting. In: Bioresource Technology. 2011 ; Vol. 102, No. 8. pp. 5214-5220.
@article{02418b626c804ee89ca1672c99515f9e,
title = "Wood ash for application in municipal biowaste composting",
abstract = "This study aimed to clarify the impacts of pH control by wood ash amendment on biowaste composting processes. To achieve this, fresh source separated municipal biowaste was mixed with low doses (2–8{\%} wt/vol) of wood ash and processed in a pilot and large-scale composting systems. The results indicated a correlation between a low initial pH and delay in the early rise of the process temperature. Wood ash elevated the composting temperatures and pH, and stimulated the mineralisation both in the pilot scale and the industrial large-scale processes. According to the results addition of amounts of 4–8{\%} wood ash is sufficient for efficient biowaste composting process and yields a safe end product. However, to minimise the environmental risk for heavy metal contamination, and meet the criteria for the limit values of the impurities in wood ash, strict quality control of the applied wood ashes should be implemented.",
keywords = "Biowaste, Large-scale composting, pH control, Odour formation, Fly ash",
author = "Kurola, {Jukka M.} and Mona Arnold and Kontro, {Merja H.} and Matti Talves and Martin Romantschuk",
year = "2011",
doi = "10.1016/j.biortech.2011.01.092",
language = "English",
volume = "102",
pages = "5214--5220",
journal = "Bioresource Technology",
issn = "0960-8524",
publisher = "Elsevier",
number = "8",

}

Kurola, JM, Arnold, M, Kontro, MH, Talves, M & Romantschuk, M 2011, 'Wood ash for application in municipal biowaste composting', Bioresource Technology, vol. 102, no. 8, pp. 5214-5220. https://doi.org/10.1016/j.biortech.2011.01.092

Wood ash for application in municipal biowaste composting. / Kurola, Jukka M. (Corresponding Author); Arnold, Mona; Kontro, Merja H.; Talves, Matti; Romantschuk, Martin.

In: Bioresource Technology, Vol. 102, No. 8, 2011, p. 5214-5220.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Wood ash for application in municipal biowaste composting

AU - Kurola, Jukka M.

AU - Arnold, Mona

AU - Kontro, Merja H.

AU - Talves, Matti

AU - Romantschuk, Martin

PY - 2011

Y1 - 2011

N2 - This study aimed to clarify the impacts of pH control by wood ash amendment on biowaste composting processes. To achieve this, fresh source separated municipal biowaste was mixed with low doses (2–8% wt/vol) of wood ash and processed in a pilot and large-scale composting systems. The results indicated a correlation between a low initial pH and delay in the early rise of the process temperature. Wood ash elevated the composting temperatures and pH, and stimulated the mineralisation both in the pilot scale and the industrial large-scale processes. According to the results addition of amounts of 4–8% wood ash is sufficient for efficient biowaste composting process and yields a safe end product. However, to minimise the environmental risk for heavy metal contamination, and meet the criteria for the limit values of the impurities in wood ash, strict quality control of the applied wood ashes should be implemented.

AB - This study aimed to clarify the impacts of pH control by wood ash amendment on biowaste composting processes. To achieve this, fresh source separated municipal biowaste was mixed with low doses (2–8% wt/vol) of wood ash and processed in a pilot and large-scale composting systems. The results indicated a correlation between a low initial pH and delay in the early rise of the process temperature. Wood ash elevated the composting temperatures and pH, and stimulated the mineralisation both in the pilot scale and the industrial large-scale processes. According to the results addition of amounts of 4–8% wood ash is sufficient for efficient biowaste composting process and yields a safe end product. However, to minimise the environmental risk for heavy metal contamination, and meet the criteria for the limit values of the impurities in wood ash, strict quality control of the applied wood ashes should be implemented.

KW - Biowaste

KW - Large-scale composting

KW - pH control

KW - Odour formation

KW - Fly ash

U2 - 10.1016/j.biortech.2011.01.092

DO - 10.1016/j.biortech.2011.01.092

M3 - Article

VL - 102

SP - 5214

EP - 5220

JO - Bioresource Technology

JF - Bioresource Technology

SN - 0960-8524

IS - 8

ER -