Lou Y.,Key Laboratory of Urban Pollutant Conversion |
Deng Y.,Key Laboratory of Urban Pollutant Conversion |
Ye Z.,Key Laboratory of Urban Pollutant Conversion |
Ye X.,Key Laboratory of Urban Pollutant Conversion |
Chen S.,Key Laboratory of Urban Pollutant Conversion
Chinese Journal of Environmental Engineering | Year: 2015
The residues of veterinary antibiotics and heavy metals in the precipitates during struvite recovery from swine wastewater were investigated. Results revealed that the precipitated solids contained significant antibiotic contents, with tetracyclines above 30 mg/kg, sulfonamindes at 1.86~13.63 mg/kg and fluoroquinolones at 5.1~59.1 mg/kg, respectively. Among the heavy metals, Cu and Zn displayed relatively high concentrations, with the values of 96.01 and 140.34 mg/kg, respectively. It should be noted that the existence of humic acid and SS in the wastewater could promote the transfer of antibiotics and heavy metals to the products. These outcomes suggested that the pollution risks of antibiotics to struvite recovery from swine wastewater should be concerned. © 2015, Science Press. All right reserved.