Effect of organic waste amendments on degradation of pahs in soil using thermophillic composting

C. K. Wan, J. W. C. Wong*, M. Fang, D. Y. Ye

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

15 Citations (Scopus)
20 Downloads (Pure)


The feasibility of using various types of organic wastes including pig manure, sewage sludge, and soybean refuse for remediation of soil spiked with phenanthrene, anthracene and pyrene (PAHs) was evaluated through batch‐scale composting reactors. The most active degradation of PAHs occurred between day 4 to 30 and maximum removal at the end of composting accounted for 90% of the initial concentrations of the three PAH compounds. Among the three PAHs, degradation of pyrene in the composting mass was relatively slow as indicated by a longer lag period than that of phenanthrene and anthracene. This corresponded well with the high molecular weight and log Kow values of pyrene. The organic amendments were effective in enhancing the degradation of PAHs, and pig manure amendment exhibited a slightly higher removal efficiency than sewage sludge and soybean refuse. A decrease in total organic matter in all treatments indicated that the decomposition process occurred. Toxicity test with cress seed germination was evaluated and no phytotoxidty was noted after 21 days of composting. This preliminary study positively supports that pig manure is an effective organic additive for bioremediation of PAH‐contaminated soil using composting as a treatment technology.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalEnvironmental Technology (United Kingdom)
Issue number1
Publication statusPublished - 1 Jan 2003

Scopus Subject Areas

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

User-Defined Keywords

  • Anthracene
  • Composting
  • Degradation
  • Organic wastes
  • Phenanthrene
  • Pyrene


Dive into the research topics of 'Effect of organic waste amendments on degradation of pahs in soil using thermophillic composting'. Together they form a unique fingerprint.

Cite this