摘要

从畜禽废水中回收磷已受到广泛关注。废水中的兽药抗生素残留物可能存在于回收产品中，从而对农业种植和人体健康构成药理威胁。本研究通过使用流化床研究了从猪废水中回收的鸟粪石颗粒中的抗生素发生。结果显示，四环素在鸟粪石颗粒中具有显着的残留，其值为195.2 mg•kg-1至1995.0 mg•kg-1。至于氟喹诺酮类药物，它们的浓度从0.4mg•kg-1变为1104.0mg•kg-1。结构颗粒具有不同的尺寸和形状，并显示出不同的抗生素吸附能力。数据还显示，较小的颗粒含有比较大的抗生素更多的抗生素，表明鸟粪石晶体的流化造粒过程对抗生素积累起着重要作用。对于四环素类，有机物和鸟粪石吸附对四环素迁移有显着影响。结果强调需要考虑废水资源回收中抗生素的残留，因为它们对回收产品的利用产生药理学影响。

Recovering phosphorus from livestock wastewater has gained extensive attention. The residue of veterinary antibiotics in the wastewater may be present in the recovered products, thereby posing pharmacological threats to the agricultural planting and human health. This study investigated antibiotic occurrence in the struvite particles recovered from swine wastewater by using a fluidized bed. Results revealed that tetracyclines possessed significant residues in the struvite granules, with the values ranging from 195.2 mg•kg–1 to 1995.0 mg•kg–1. As for fluoroquinolones, their concentrations varied from 0.4 mg•kg–1 to 1104.0 mg•kg–1. Struvite particles were of various sizes and shapes and displayed different antibiotic adsorption capacities. The data also showed that the smaller granules contained much more antibiotics than the larger ones, indicating that the fluidized granulation process of struvite crystals plays an important role on the accumulation of antibiotics. For tetracyclines, organic matters and struvite adsorption exerted significant impacts on tetracyclines migration. The outcomes underscore the need to consider the residues of antibiotics in resource recovery from wastewater because they exert pharmacological impacts on the utilization of recovered products.

https://link.springer.com/article/10.1007/s11783-018-1015-1