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Maturity and security assessment of pilot-scale aerobic co-composting of penicillin fermentation dregs (PFDs) with sewage sludge

  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In this work, penicillin fermentation dregs (PFDs) and sewage sludge (SWS) were co-composted to analyze the possibility of recycling nutrients in PFDs. The temperature was maintained above 55 °C for more than 3 days, and the final electrical conductivity (EC), pH and C/N all met the national standards in maturity. A nearly 100% removal of the residual penicillin was achieved, and the seed germination index (GI) increased from 0.02% to 83.54 ± 3.1% by the end of the composting process. However, monitoring the quantity of antibiotic resistance genes (ARGs) showed that the logarithm of the number of copies of blaTEM increased from 4.17 ± 0.19 at the initial phase to 8.92 ± 0.27 by the end of the composting process, which means that there is a high risk for land use when using PFD compost products.

Original languageEnglish
Pages (from-to)185-191
Number of pages7
JournalBioresource Technology
Volume204
DOIs
StatePublished - 1 Mar 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy
  2. SDG 15 - Life on Land
    SDG 15 Life on Land

Keywords

  • Antibiotic resistance genes (ARGs)
  • Antibiotics fermentation dregs (AFDs)
  • Co-composting
  • Germination index
  • Penicillin fermentation dregs (PFDs)

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