Evaluation of sewage sludge incineration ash as a potential land reclamation material

Wenlin Yvonne Lin, Wei Cheng Ng, Belinda Shu Ee Wong, Serena Lay Ming Teo, Gayathiri d/o Sivananthan, Gyeong Hun Baeg, Yong Sik Ok, Chi Hwa Wang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This study evaluated the potential of utilising sewage sludge incineration ash as a land reclamation material. Toxicity assessment of the leachate of the ash was carried out for both terrestrial and marine organisms. Both the fruit fly Drosophila melanogaster and barnacle Amphibalanus amphitrite showed that both bottom and fly ash leached at liquid-to-solid (L/S) ratio 5 did not substantially affect viabilities. The leachate carried out at L/S 10 was compared to the European Waste Acceptance Criteria and the sewage sludge ashes could be classified as non-hazardous waste. The geotechnical properties of the sewage sludge ash were studied and compared to sand, a conventional land reclamation material, for further evaluation of its potential as a land reclamation material. It was found from direct shear test that both bottom and fly ashes displayed similar and comparable shear strength to that of typical compacted sandy soil based on the range of internal friction angle obtained. However, the consolidation profile of bottom ash was significantly different from sand, while that of fly ash was more similar to sand. Our study showed that the sewage sludge ash has the potential to be used as a land reclamation material.

Original languageEnglish
Pages (from-to)63-72
Number of pages10
JournalJournal of Hazardous Materials
Volume357
DOIs
Publication statusPublished - 2018 Sep 5

Fingerprint

Ashes
Coal Ash
Incineration
Land reclamation
Waste incineration
land reclamation
Sewage sludge
Sewage
ash
bottom ash
fly ash
Fly ash
Sand
sand
leachate
liquid
geotechnical property
shear test
sandy soil
Internal friction

Keywords

  • Biotoxicity assessment
  • Land reclamation
  • Leaching
  • Sewage sludge ash
  • Waste management

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Lin, W. Y., Ng, W. C., Wong, B. S. E., Teo, S. L. M., Sivananthan, G. D., Baeg, G. H., ... Wang, C. H. (2018). Evaluation of sewage sludge incineration ash as a potential land reclamation material. Journal of Hazardous Materials, 357, 63-72. https://doi.org/10.1016/j.jhazmat.2018.05.047

Evaluation of sewage sludge incineration ash as a potential land reclamation material. / Lin, Wenlin Yvonne; Ng, Wei Cheng; Wong, Belinda Shu Ee; Teo, Serena Lay Ming; Sivananthan, Gayathiri d/o; Baeg, Gyeong Hun; Ok, Yong Sik; Wang, Chi Hwa.

In: Journal of Hazardous Materials, Vol. 357, 05.09.2018, p. 63-72.

Research output: Contribution to journalArticle

Lin, Wenlin Yvonne ; Ng, Wei Cheng ; Wong, Belinda Shu Ee ; Teo, Serena Lay Ming ; Sivananthan, Gayathiri d/o ; Baeg, Gyeong Hun ; Ok, Yong Sik ; Wang, Chi Hwa. / Evaluation of sewage sludge incineration ash as a potential land reclamation material. In: Journal of Hazardous Materials. 2018 ; Vol. 357. pp. 63-72.
@article{713898859a80415ca2ad1457a63ae8c4,
title = "Evaluation of sewage sludge incineration ash as a potential land reclamation material",
abstract = "This study evaluated the potential of utilising sewage sludge incineration ash as a land reclamation material. Toxicity assessment of the leachate of the ash was carried out for both terrestrial and marine organisms. Both the fruit fly Drosophila melanogaster and barnacle Amphibalanus amphitrite showed that both bottom and fly ash leached at liquid-to-solid (L/S) ratio 5 did not substantially affect viabilities. The leachate carried out at L/S 10 was compared to the European Waste Acceptance Criteria and the sewage sludge ashes could be classified as non-hazardous waste. The geotechnical properties of the sewage sludge ash were studied and compared to sand, a conventional land reclamation material, for further evaluation of its potential as a land reclamation material. It was found from direct shear test that both bottom and fly ashes displayed similar and comparable shear strength to that of typical compacted sandy soil based on the range of internal friction angle obtained. However, the consolidation profile of bottom ash was significantly different from sand, while that of fly ash was more similar to sand. Our study showed that the sewage sludge ash has the potential to be used as a land reclamation material.",
keywords = "Biotoxicity assessment, Land reclamation, Leaching, Sewage sludge ash, Waste management",
author = "Lin, {Wenlin Yvonne} and Ng, {Wei Cheng} and Wong, {Belinda Shu Ee} and Teo, {Serena Lay Ming} and Sivananthan, {Gayathiri d/o} and Baeg, {Gyeong Hun} and Ok, {Yong Sik} and Wang, {Chi Hwa}",
year = "2018",
month = "9",
day = "5",
doi = "10.1016/j.jhazmat.2018.05.047",
language = "English",
volume = "357",
pages = "63--72",
journal = "Journal of Hazardous Materials",
issn = "0304-3894",
publisher = "Elsevier",

}

TY - JOUR

T1 - Evaluation of sewage sludge incineration ash as a potential land reclamation material

AU - Lin, Wenlin Yvonne

AU - Ng, Wei Cheng

AU - Wong, Belinda Shu Ee

AU - Teo, Serena Lay Ming

AU - Sivananthan, Gayathiri d/o

AU - Baeg, Gyeong Hun

AU - Ok, Yong Sik

AU - Wang, Chi Hwa

PY - 2018/9/5

Y1 - 2018/9/5

N2 - This study evaluated the potential of utilising sewage sludge incineration ash as a land reclamation material. Toxicity assessment of the leachate of the ash was carried out for both terrestrial and marine organisms. Both the fruit fly Drosophila melanogaster and barnacle Amphibalanus amphitrite showed that both bottom and fly ash leached at liquid-to-solid (L/S) ratio 5 did not substantially affect viabilities. The leachate carried out at L/S 10 was compared to the European Waste Acceptance Criteria and the sewage sludge ashes could be classified as non-hazardous waste. The geotechnical properties of the sewage sludge ash were studied and compared to sand, a conventional land reclamation material, for further evaluation of its potential as a land reclamation material. It was found from direct shear test that both bottom and fly ashes displayed similar and comparable shear strength to that of typical compacted sandy soil based on the range of internal friction angle obtained. However, the consolidation profile of bottom ash was significantly different from sand, while that of fly ash was more similar to sand. Our study showed that the sewage sludge ash has the potential to be used as a land reclamation material.

AB - This study evaluated the potential of utilising sewage sludge incineration ash as a land reclamation material. Toxicity assessment of the leachate of the ash was carried out for both terrestrial and marine organisms. Both the fruit fly Drosophila melanogaster and barnacle Amphibalanus amphitrite showed that both bottom and fly ash leached at liquid-to-solid (L/S) ratio 5 did not substantially affect viabilities. The leachate carried out at L/S 10 was compared to the European Waste Acceptance Criteria and the sewage sludge ashes could be classified as non-hazardous waste. The geotechnical properties of the sewage sludge ash were studied and compared to sand, a conventional land reclamation material, for further evaluation of its potential as a land reclamation material. It was found from direct shear test that both bottom and fly ashes displayed similar and comparable shear strength to that of typical compacted sandy soil based on the range of internal friction angle obtained. However, the consolidation profile of bottom ash was significantly different from sand, while that of fly ash was more similar to sand. Our study showed that the sewage sludge ash has the potential to be used as a land reclamation material.

KW - Biotoxicity assessment

KW - Land reclamation

KW - Leaching

KW - Sewage sludge ash

KW - Waste management

UR - http://www.scopus.com/inward/record.url?scp=85048479414&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048479414&partnerID=8YFLogxK

U2 - 10.1016/j.jhazmat.2018.05.047

DO - 10.1016/j.jhazmat.2018.05.047

M3 - Article

AN - SCOPUS:85048479414

VL - 357

SP - 63

EP - 72

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -