【摘要】 为研究各种抗生素组合对猪场废水厌氧发酵的影响以及各种抗生素之间的相互作用关系,根据正交试验方案,通过分批培养,对阿莫西林、金霉素、磺胺二甲基氧、氟苯尼考4种抗生素的联合抑制作用进行了研究.结果表明,阿莫西林210 mg/L、金霉素10 mg/L、磺胺二甲基氧210 mg/L、氟苯尼考130 mg/L的组合对产甲烷的抑制率为87.8%,而4种抗生素浓度均为10mg/L的组合对产甲烷速率不但没有抑制影响,反而有促进作用.4种抗生素对产甲烷抑制作用的显著性依次为:金霉素>阿莫西林>氟苯尼考>磺胺二甲基氧.4种抗生素两两之间呈现不同的互作类型,除氟苯尼考和磺胺二甲基氧、氟苯尼考和阿莫西林呈现相关加关系外,其余2种抗生素之间均表现为拮抗关系.更多还原

【Abstract】 In order to investigate the combined effects of antibiotics on anaerobic digestion of piggery wastewater,batch tests based on orthogonal test were adopted.Amoxicillin,aureomycin,sulfadimethoxine,florfenicol which are the most common antibiotics used in the prevention and treatment of pig diseases were chosen in the experiment.The results showed that the methane production rate was affected most by the combination of 130 (mg/L) of florfenicol,210(mg/L) of amoxicillin,10 (mg/L) doxycycline and 210 (mg/L) sulfadimethoxine and the inhibitory effect on maximum methane production rate amounted to 87.8%.No inhibitory effect but stimulus was observed on anaerobic digestion in the presence of florfenicol,amoxicillin,aureomycin,sulfadimethoxine with 10(mg/L).The significance of the inhibitory effect of the selected antibiotics was in an order of aureomycin,amoxicillin,florfenicol and sulfadimethoxine(p>0.005). Different kinds of first-order interactions between either two antibiotics were concluded from the experiment.Except that florfenicol was in a additivity relationship with amoxicillin and sulfadimethoxine the interaction in other antibitotics was antagonistic.更多还原