Composition and biodegradability of products of wet air oxidation of polyester

Richard M. Dinsdale; Mats Almemark; Freda R. Hawkes; Dennis L. Hawkes

doi:10.1021/es9905086

Composition and biodegradability of products of wet air oxidation of polyester

Richard M. Dinsdale^*, Mats Almemark, Freda R. Hawkes, Dennis L. Hawkes

^*Corresponding author for this work

Faculty of Computing, Engineering and Science

Research output: Contribution to journal › Article › peer-review

Abstract

Knowledge of the chemical composition of wet air oxidation (WAO) effluents is essential in determining the effectiveness of the WAO system and in selecting further treatment. WAO with excess O ₂ of cured green architectural polyester (33,77 g L ^-1 total solids) at 300 °C for 80 min gave 97% destruction of volatile solids, with 92% of the remaining total organic carbon (TOC) in the soluble form. Volatile fatty acids (C1-C5 with acetic acid as the major component) and other short organic acids (maleic and glyoxylic) and benzoic acid were also identified, in total comprising 98.5% of the soluble TOC. The polyester sample oxidized under O ₂ limitation (107.01 g L ^-1 total solids) for 4 h at 290 °C showed 84% volatile solids destruction, with 67% of the remaining TOC in the soluble form, and gave a more complex range of organic compounds. Soluble effluent from both WAO processes showed good biodegradability both aerobically and anaerobically.

Original language	English
Pages (from-to)	4092-4095
Number of pages	4
Journal	Environmental Science and Technology
Volume	33
Issue number	22
DOIs	https://doi.org/10.1021/es9905086
Publication status	Published - 1999

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title = "Composition and biodegradability of products of wet air oxidation of polyester",

abstract = "Knowledge of the chemical composition of wet air oxidation (WAO) effluents is essential in determining the effectiveness of the WAO system and in selecting further treatment. WAO with excess O 2 of cured green architectural polyester (33,77 g L -1 total solids) at 300 °C for 80 min gave 97% destruction of volatile solids, with 92% of the remaining total organic carbon (TOC) in the soluble form. Volatile fatty acids (C1-C5 with acetic acid as the major component) and other short organic acids (maleic and glyoxylic) and benzoic acid were also identified, in total comprising 98.5% of the soluble TOC. The polyester sample oxidized under O 2 limitation (107.01 g L -1 total solids) for 4 h at 290 °C showed 84% volatile solids destruction, with 67% of the remaining TOC in the soluble form, and gave a more complex range of organic compounds. Soluble effluent from both WAO processes showed good biodegradability both aerobically and anaerobically.",

author = "Dinsdale, {Richard M.} and Mats Almemark and Hawkes, {Freda R.} and Hawkes, {Dennis L.}",

year = "1999",

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TY - JOUR

T1 - Composition and biodegradability of products of wet air oxidation of polyester

AU - Dinsdale, Richard M.

AU - Almemark, Mats

AU - Hawkes, Freda R.

AU - Hawkes, Dennis L.

PY - 1999

Y1 - 1999

N2 - Knowledge of the chemical composition of wet air oxidation (WAO) effluents is essential in determining the effectiveness of the WAO system and in selecting further treatment. WAO with excess O 2 of cured green architectural polyester (33,77 g L -1 total solids) at 300 °C for 80 min gave 97% destruction of volatile solids, with 92% of the remaining total organic carbon (TOC) in the soluble form. Volatile fatty acids (C1-C5 with acetic acid as the major component) and other short organic acids (maleic and glyoxylic) and benzoic acid were also identified, in total comprising 98.5% of the soluble TOC. The polyester sample oxidized under O 2 limitation (107.01 g L -1 total solids) for 4 h at 290 °C showed 84% volatile solids destruction, with 67% of the remaining TOC in the soluble form, and gave a more complex range of organic compounds. Soluble effluent from both WAO processes showed good biodegradability both aerobically and anaerobically.

AB - Knowledge of the chemical composition of wet air oxidation (WAO) effluents is essential in determining the effectiveness of the WAO system and in selecting further treatment. WAO with excess O 2 of cured green architectural polyester (33,77 g L -1 total solids) at 300 °C for 80 min gave 97% destruction of volatile solids, with 92% of the remaining total organic carbon (TOC) in the soluble form. Volatile fatty acids (C1-C5 with acetic acid as the major component) and other short organic acids (maleic and glyoxylic) and benzoic acid were also identified, in total comprising 98.5% of the soluble TOC. The polyester sample oxidized under O 2 limitation (107.01 g L -1 total solids) for 4 h at 290 °C showed 84% volatile solids destruction, with 67% of the remaining TOC in the soluble form, and gave a more complex range of organic compounds. Soluble effluent from both WAO processes showed good biodegradability both aerobically and anaerobically.

U2 - 10.1021/es9905086

DO - 10.1021/es9905086

M3 - Article

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SN - 0013-936X

VL - 33

SP - 4092

EP - 4095

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 22

ER -

Composition and biodegradability of products of wet air oxidation of polyester

Abstract

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