Abstract

Fallen leaves of Platanus orientalis and Ginkgo biloba linn were separately immersed in water to obtain leachates that were used as exogenous electron donors for accelerating pyridine and quinoline biodegradations. Leachate addition accelerated the pyridine removal rate by up to 4.4% and 3.6% and the quinoline removal rate by 9.5% and 11%. The rates increased further after the leachates were illuminated by UV light: up to 8.5% for pyridine and 12% for quinoline. Succinate and oxalate were separately added into solutions of pyridine and quinoline (respectively) to gauge the acceleration impact of the leaf leachates. Equations describing the relationships between addition of leachate and pyridine or quinoline removal rates were established based on electron-equivalent balances and comparison to the acceleration effects from succinate and oxalate. From 22% to 98% of the COD leached from leaves was available as an electron donor, with the fraction being greater for pyridine and after UV illumination.

LanguageEnglish (US)
Pages473-479
Number of pages7
JournalScience of the Total Environment
Volume654
DOIs
StatePublished - Mar 1 2019

Fingerprint

Biodegradation
Pyridine
leachate
biodegradation
electron
Electrons
oxalate
Oxalates
Succinic Acid
gauge
Ultraviolet radiation
Gages
pyridine
quinoline
Lighting
rate
Water
removal
water

Keywords

  • Bioavailable electron equivalent
  • Pyridine
  • Quinoline

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Cite this

Bioavailable electron donors leached from leaves accelerate biodegradation of pyridine and quinoline. / Lu, Qinyuan; Zhang, Chenyuan; Wang, Wenyi; Yuan, Biyue; Zhang, Yongming; Rittmann, Bruce.

In: Science of the Total Environment, Vol. 654, 01.03.2019, p. 473-479.

Research output: Contribution to journalArticle

Lu, Qinyuan ; Zhang, Chenyuan ; Wang, Wenyi ; Yuan, Biyue ; Zhang, Yongming ; Rittmann, Bruce. / Bioavailable electron donors leached from leaves accelerate biodegradation of pyridine and quinoline. In: Science of the Total Environment. 2019 ; Vol. 654. pp. 473-479.
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abstract = "Fallen leaves of Platanus orientalis and Ginkgo biloba linn were separately immersed in water to obtain leachates that were used as exogenous electron donors for accelerating pyridine and quinoline biodegradations. Leachate addition accelerated the pyridine removal rate by up to 4.4{\%} and 3.6{\%} and the quinoline removal rate by 9.5{\%} and 11{\%}. The rates increased further after the leachates were illuminated by UV light: up to 8.5{\%} for pyridine and 12{\%} for quinoline. Succinate and oxalate were separately added into solutions of pyridine and quinoline (respectively) to gauge the acceleration impact of the leaf leachates. Equations describing the relationships between addition of leachate and pyridine or quinoline removal rates were established based on electron-equivalent balances and comparison to the acceleration effects from succinate and oxalate. From 22{\%} to 98{\%} of the COD leached from leaves was available as an electron donor, with the fraction being greater for pyridine and after UV illumination.",
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AU - Rittmann, Bruce

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