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首页> 外文会议>Decentralised Water and Wastewater Systems >9.2 Alleviation of the Effect of Antibiotics on the Aerobic Biodegradation of Feces in Composting Toilet
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9.2 Alleviation of the Effect of Antibiotics on the Aerobic Biodegradation of Feces in Composting Toilet

机译：9.2减轻堆肥厕所中抗生素对粪便有氧生物降解的影响

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We have reported the severe effect of amoxicillin dosage (penicillin group antibiotics) on the feces composting process, and the degradation mechanisms of amoxicillin (the degradation of amoxicillin in a toilet matrix was dependent on the concentration of ammonia, phosphate and hydroxyl ion.) in the composting toilet matrix. Since, in general, to show an inhibitory effect of antibiotics on bacteria, concentration of antibiotics must be more than the concentration that shows the inhibitory effect and its level must be kept for the time needed. This suggested that it is better to keep high phosphate, ammonia, and pH level for rapid degradation of amoxicillin. During the biodegradation of feces, concentration of ammonia and pH level in the sawdust matrix increases due to the decay of organic nitrogen in feces, and thus our objective in this study is to evaluate the alleviation effect of higher feces loading operation. The results indicated that we observed higher enough respiratory activity in higher feces loading operation system than that of ordinary feces loading operation. Therefore we can conclude higher feces loading operation can relieve the inhibitory effect of amoxicillin on the composting process of feces. But the reason why we can observe the relieved bacterial activity seemed not to be the rapid degradation of amoxicillin but to be other reasons like an increase in bacterial counts or its high activity.
机译：我们已经报道了阿莫西林剂量（青霉素类抗生素）对粪便堆肥过程的严重影响，并且阿莫西林的降解机理（马桶基质中阿莫西林的降解取决于氨，磷酸盐和氢氧根离子的浓度）。堆肥厕所矩阵。由于一般而言，为了显示抗生素对细菌的抑制作用，抗生素的浓度必须大于显示抑制作用的浓度，并且必须在需要的时间内保持其水平。这表明最好保持较高的磷酸盐，氨水和pH值，以使阿莫西林快速降解。在粪便生物降解过程中，由于粪便中有机氮的衰减，木屑基质中的氨浓度和pH值会增加，因此，本研究的目的是评估较高粪便装载操作的缓解效果。结果表明，我们在较高的粪便装载系统中观察到了比普通粪便装载系统更高的呼吸活动。因此，我们可以得出结论，较高的粪便装载操作可以减轻阿莫西林对粪便堆肥过程的抑制作用。但是，我们观察到细菌活性降低的原因似乎不是阿莫西林的快速降解，而是其他原因，例如细菌数量增加或活性高。

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