Generation characteristics and spreading risk of VOCs released from a biological fermentation pharmaceutical factory

Abstract

Pharmaceutical factories produced a large amount of volatile organic compounds (VOCs), which may pose a potential health threat to the environment, workers, and nearby residents. Sampling points were set up...

Assessment of novel hybrid treatment wetlands as nature‐based solutions for pharmaceutical industry wastewater treatment

“…The results demonstrate that the increased concentration of NO 3 − ‐N in the TFTW effluent primarily resulted from the transformation of NH 4 + ‐N via the nitrification process in the well‐oxygenized TFTW bed. Meanwhile, the removal of TN in TFTW (Figure 3c,f) was mainly attributable to other forms of nitrogen, such as nitrogen‐containing organic compounds like proteins, amino acids, and urea in pharmaceutical wastewater (Wang et al, 2022). The subsequent stage of HSSF TW with the anoxic condition was found to be more conducive for the denitrification process, leading to significant removal of NO 3 − ‐N (Figure 3e) and contributing to the reduction of TN (Figure 3c).…”