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[Pollution Characteristics and Removal Effects of Antibiotics in Wastewater from Large-Scale Pig Farms in Guizhou].
Huan Jing Ke Xue. 2020 May 08; 41(5):2320-2328.HJ

Abstract

To understand the pollution characteristics and removal effect of antibiotics in the wastewater treatment process of large-scale pig farms in Guizhou, solid-phase extraction-liquid chromatography-tandem mass spectrometry (SPE-LC-MS) was used to investigate the removal of ten veterinary antibiotics from the influent and effluent of each treatment unit during the wastewater treatment process in two large-scale pig farms (named Farm A and Farm B). The results showed that the removal rates of conventional pollutants[including chemical oxygen demand (COD), NH4+-N, total nitrogen (TN), and total phosphorus (TP)] in Farm A and Farm B were above 88.10%. The antibiotics concentrations detected in the influent and effluent ranged from ND-120842.74 ng·L-1. The main antibiotics were sulfamonomethoxine (SMM), sulfamethoxazole (SMD), oxytetracycline (OTC), and ofloxacin (OFL), and the SMM concentration was highest at 120842.74 ng·L-1. The removal rate of the ten antibiotics was 99.23%-100.00% in Farm A and Farm B. In the wastewater treatment process of Farm A, the treatment section "USR+2A/O+disinfection pond+oxidation pond" removed antibiotics in wastewater effectively, with the total removal rate of SMM, SMD, and OTC reaching 100.00%. In the wastewater treatment process of Farm B, the treatment section "ultrafiltration (UF)+nanofiltration (NF)" removed antibiotics effectively by more than 99.23%. However, the concentrations of antibiotics investigated in the effluent were higher than the EU water environment antibiotic threshold (10 ng·L-1). Finally, through redundancy analysis, it was found that conventional indicators (COD, NH4+-N, TN, TP, and pH) in wastewater were related to the degradation of some antibiotics.

Authors+Show Affiliations

College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China.Guizhou Academy of Testing and Analysis, Guiyang 550000, China.Guizhou Academy of Testing and Analysis, Guiyang 550000, China.

Pub Type(s)

English Abstract
Journal Article

Language

chi

PubMed ID

32608850

Citation

Yang, Zhao, et al. "[Pollution Characteristics and Removal Effects of Antibiotics in Wastewater From Large-Scale Pig Farms in Guizhou]." Huan Jing Ke Xue= Huanjing Kexue, vol. 41, no. 5, 2020, pp. 2320-2328.
Yang Z, Li J, Xiang FL, et al. [Pollution Characteristics and Removal Effects of Antibiotics in Wastewater from Large-Scale Pig Farms in Guizhou]. Huan Jing Ke Xue. 2020;41(5):2320-2328.
Yang, Z., Li, J., Xiang, F. L., Li, Y. C., Ma, K., & Xie, F. (2020). [Pollution Characteristics and Removal Effects of Antibiotics in Wastewater from Large-Scale Pig Farms in Guizhou]. Huan Jing Ke Xue= Huanjing Kexue, 41(5), 2320-2328. https://doi.org/10.13227/j.hjkx.201910050
Yang Z, et al. [Pollution Characteristics and Removal Effects of Antibiotics in Wastewater From Large-Scale Pig Farms in Guizhou]. Huan Jing Ke Xue. 2020 May 8;41(5):2320-2328. PubMed PMID: 32608850.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Pollution Characteristics and Removal Effects of Antibiotics in Wastewater from Large-Scale Pig Farms in Guizhou]. AU - Yang,Zhao, AU - Li,Jiang, AU - Xiang,Fu-Liang, AU - Li,Yan-Chen, AU - Ma,Kai, AU - Xie,Feng, PY - 2020/7/2/entrez KW - pollution characteristics KW - redundancy analysis KW - removal effect KW - swine wastewater KW - veterinary antibiotics SP - 2320 EP - 2328 JF - Huan jing ke xue= Huanjing kexue JO - Huan Jing Ke Xue VL - 41 IS - 5 N2 - To understand the pollution characteristics and removal effect of antibiotics in the wastewater treatment process of large-scale pig farms in Guizhou, solid-phase extraction-liquid chromatography-tandem mass spectrometry (SPE-LC-MS) was used to investigate the removal of ten veterinary antibiotics from the influent and effluent of each treatment unit during the wastewater treatment process in two large-scale pig farms (named Farm A and Farm B). The results showed that the removal rates of conventional pollutants[including chemical oxygen demand (COD), NH4+-N, total nitrogen (TN), and total phosphorus (TP)] in Farm A and Farm B were above 88.10%. The antibiotics concentrations detected in the influent and effluent ranged from ND-120842.74 ng·L-1. The main antibiotics were sulfamonomethoxine (SMM), sulfamethoxazole (SMD), oxytetracycline (OTC), and ofloxacin (OFL), and the SMM concentration was highest at 120842.74 ng·L-1. The removal rate of the ten antibiotics was 99.23%-100.00% in Farm A and Farm B. In the wastewater treatment process of Farm A, the treatment section "USR+2A/O+disinfection pond+oxidation pond" removed antibiotics in wastewater effectively, with the total removal rate of SMM, SMD, and OTC reaching 100.00%. In the wastewater treatment process of Farm B, the treatment section "ultrafiltration (UF)+nanofiltration (NF)" removed antibiotics effectively by more than 99.23%. However, the concentrations of antibiotics investigated in the effluent were higher than the EU water environment antibiotic threshold (10 ng·L-1). Finally, through redundancy analysis, it was found that conventional indicators (COD, NH4+-N, TN, TP, and pH) in wastewater were related to the degradation of some antibiotics. SN - 0250-3301 UR - https://www.unboundmedicine.com/medline/citation/32608850/[Pollution_Characteristics_and_Removal_Effects_of_Antibiotics_in_Wastewater_from_Large-Scale_Pig_Farms_in_Guizhou] DB - PRIME DP - Unbound Medicine ER -
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