College of Water Conservancy and Civil Engineering, China Agricultural University, P.O. Box 184, Beijing 100083, PR China.
Waste Manag. 2012 Jan;32(1):131-6. doi: 10.1016/j.wasman.2011.07.031. Epub 2011 Aug 24.
Antibiotics of inorganic and organic origin in pig manure can inhibit the anaerobic process in biogas plants. The influence of three frequently used antibiotics, copper dosed as CuSO(4), sulfadiazine (SDZ), and difloxacin (DIF), on the anaerobic digestion process of pig manure was studied in semi-continuous experiments. Biogas production recovered after every Cu dosage up to a sum of 12.94g Cukg(-1) organic dry matter (ODM), probably due to Cu precipitation following the formation of sulphide from sulphate. Complete inhibition was found at the very high Cu concentration of 19.40g Cukg(-1) ODM. Inhibitory effect of SDZ and DIF was observed at concentrations as high as 2.70gkg(-1) ODM and 0.54gkg(-1) ODM, respectively. It seems very unlikely that the antibiotics tested would inhibit the anaerobic process in a full-scale biogas plant.
无机和有机来源的抗生素存在于猪粪中，会抑制沼气厂中的厌氧过程。本研究采用半连续实验，检测了三种常用抗生素（硫酸铜（CuSO4）、磺胺嘧啶（SDZ）和二氟沙星（DIF））对猪粪厌氧消化过程的影响。每次添加铜，直到铜的总量达到 12.94g Cukg(-1)有机干物质（ODM）时，沼气产量都会恢复，这可能是由于硫酸盐形成硫化物后发生了铜沉淀。当铜的浓度达到 19.40g Cukg(-1)ODM 时，完全抑制了沼气的产生。磺胺嘧啶和二氟沙星的浓度分别高达 2.70gkg(-1)ODM 和 0.54gkg(-1)ODM 时，也表现出抑制作用。因此，在实际规模的沼气厂中，这些抗生素不太可能会抑制厌氧过程。
