Characterization of the pyrolytic solid derived from used disposable diapers

Taek Keun Oh, Yoshiyuki Shinogi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper confirms through physical and chemical analyses the possibility to reuse the solid pyrolytic residue derived from used disposable diapers (UDD), heated at different temperatures ranging from 500, 700 and 900°C as a soil amendment. With an increasing pyrolytic temperature, the pH, electrical conductivity, available P2O5, exchangeable K+ and cation exchange capacity tended to increase; however, total-N and exchangeable Ca2+ and Mg2+ decreased. The pyrolytic diaper solid produced at 500°C had a high volatile matter (60.22%) and low ash content (19.10%), which can negatively affect crop growth and productivity when added to soil. Heavy metal concentrations were less than the maximum allowable limits according to Japan standards. The surface of the pyrolytic diaper solid was coarse, porous and heterogeneous with higher temperatures. Hydrogen-containing functional groups, such as OH, C-H, N-H and CH2, decreased with increasing pyrolytic temperature. Based on these results, we concluded that the pyrolytic product derived from UDD at higher temperatures offers a potentially effective soil amendment option.

Original languageEnglish
Pages (from-to)3153-3160
Number of pages8
JournalEnvironmental Technology (United Kingdom)
Volume34
Issue number24
DOIs
Publication statusPublished - Dec 1 2013

Fingerprint

soil amendment
phosphorus pentoxide
Ashes
Soils
temperature
cation exchange capacity
Temperature
functional group
electrical conductivity
ash
hydrogen
heavy metal
productivity
Heavy Metals
crop
Functional groups
Crops
Cations
Hydrogen
Productivity

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal

Cite this

Characterization of the pyrolytic solid derived from used disposable diapers. / Oh, Taek Keun; Shinogi, Yoshiyuki.

In: Environmental Technology (United Kingdom), Vol. 34, No. 24, 01.12.2013, p. 3153-3160.

Research output: Contribution to journalArticle

@article{48442e81ea484772acf9959ba53b961b,
title = "Characterization of the pyrolytic solid derived from used disposable diapers",
abstract = "This paper confirms through physical and chemical analyses the possibility to reuse the solid pyrolytic residue derived from used disposable diapers (UDD), heated at different temperatures ranging from 500, 700 and 900°C as a soil amendment. With an increasing pyrolytic temperature, the pH, electrical conductivity, available P2O5, exchangeable K+ and cation exchange capacity tended to increase; however, total-N and exchangeable Ca2+ and Mg2+ decreased. The pyrolytic diaper solid produced at 500°C had a high volatile matter (60.22{\%}) and low ash content (19.10{\%}), which can negatively affect crop growth and productivity when added to soil. Heavy metal concentrations were less than the maximum allowable limits according to Japan standards. The surface of the pyrolytic diaper solid was coarse, porous and heterogeneous with higher temperatures. Hydrogen-containing functional groups, such as OH, C-H, N-H and CH2, decreased with increasing pyrolytic temperature. Based on these results, we concluded that the pyrolytic product derived from UDD at higher temperatures offers a potentially effective soil amendment option.",
author = "Oh, {Taek Keun} and Yoshiyuki Shinogi",
year = "2013",
month = "12",
day = "1",
doi = "10.1080/09593330.2013.808240",
language = "English",
volume = "34",
pages = "3153--3160",
journal = "Environmental Technology (United Kingdom)",
issn = "0959-3330",
publisher = "Taylor and Francis Ltd.",
number = "24",

}

TY - JOUR

T1 - Characterization of the pyrolytic solid derived from used disposable diapers

AU - Oh, Taek Keun

AU - Shinogi, Yoshiyuki

PY - 2013/12/1

Y1 - 2013/12/1

N2 - This paper confirms through physical and chemical analyses the possibility to reuse the solid pyrolytic residue derived from used disposable diapers (UDD), heated at different temperatures ranging from 500, 700 and 900°C as a soil amendment. With an increasing pyrolytic temperature, the pH, electrical conductivity, available P2O5, exchangeable K+ and cation exchange capacity tended to increase; however, total-N and exchangeable Ca2+ and Mg2+ decreased. The pyrolytic diaper solid produced at 500°C had a high volatile matter (60.22%) and low ash content (19.10%), which can negatively affect crop growth and productivity when added to soil. Heavy metal concentrations were less than the maximum allowable limits according to Japan standards. The surface of the pyrolytic diaper solid was coarse, porous and heterogeneous with higher temperatures. Hydrogen-containing functional groups, such as OH, C-H, N-H and CH2, decreased with increasing pyrolytic temperature. Based on these results, we concluded that the pyrolytic product derived from UDD at higher temperatures offers a potentially effective soil amendment option.

AB - This paper confirms through physical and chemical analyses the possibility to reuse the solid pyrolytic residue derived from used disposable diapers (UDD), heated at different temperatures ranging from 500, 700 and 900°C as a soil amendment. With an increasing pyrolytic temperature, the pH, electrical conductivity, available P2O5, exchangeable K+ and cation exchange capacity tended to increase; however, total-N and exchangeable Ca2+ and Mg2+ decreased. The pyrolytic diaper solid produced at 500°C had a high volatile matter (60.22%) and low ash content (19.10%), which can negatively affect crop growth and productivity when added to soil. Heavy metal concentrations were less than the maximum allowable limits according to Japan standards. The surface of the pyrolytic diaper solid was coarse, porous and heterogeneous with higher temperatures. Hydrogen-containing functional groups, such as OH, C-H, N-H and CH2, decreased with increasing pyrolytic temperature. Based on these results, we concluded that the pyrolytic product derived from UDD at higher temperatures offers a potentially effective soil amendment option.

UR - http://www.scopus.com/inward/record.url?scp=84890114577&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84890114577&partnerID=8YFLogxK

U2 - 10.1080/09593330.2013.808240

DO - 10.1080/09593330.2013.808240

M3 - Article

C2 - 24617074

AN - SCOPUS:84890114577

VL - 34

SP - 3153

EP - 3160

JO - Environmental Technology (United Kingdom)

JF - Environmental Technology (United Kingdom)

SN - 0959-3330

IS - 24

ER -