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

Bioresource Technology
Lian YangYao Wang

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.

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Citations

Jul 11, 2020·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Bo ZhangHuiling Liu
Jan 22, 2021·Journal of Environmental Management·Jianjun RenDongze Niu
Dec 2, 2020·Journal of Hazardous Materials·Yuan ChenWeigang Lin
Oct 15, 2020·Bioengineering·Ali Hosseini TaleghaniPhuc H Vo
Jun 20, 2021·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Shouxue LiZengling Yang
Sep 11, 2021·Environmental Science and Pollution Research International·Mingyue XuChuanfu Wu
Nov 9, 2021·Applied Biochemistry and Biotechnology·Shi-Peng WangKenji Kida

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