Anaerobic digestion of antibiotic residue in combination with hydrothermal pretreatment for biogas.
Anaerobic digestion of antibiotic residue in combination with hydrothermal pretreatment for biogas.
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DOI：
10.1016/j.biortech.2015.05.014
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发表时间：
2015-09
影响因子：
11.4
通讯作者：
Guangyi Zhang;Chunxing Li;Dachao Ma;Zhikai Zhang;Guangwen Xu
中科院分区：
文献类型：
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作者：
Guangyi Zhang;Chunxing Li;Dachao Ma;Zhikai Zhang;Guangwen Xu
抗生素残留物由于含水量高、残留抗生素等原因，难以处理或利用。研究了头孢菌素C残留物（CPCAR）经厌氧消化与水热预处理（HTPT）相结合生产沼气的可能性。实验室规模的实验结果表明，HTPT和厌氧消化相结合可以提供一种可行的方法将CPCAR转化为沼气，沼气和甲烷产量分别达到290和200 ml（g TS）−1。本文在理论计算的基础上，利用中试HTPT试验数据，从能量平衡和技术可行性方面对该技术进行了进一步评价。结果表明，该工艺在能量上完全自给自足，其主要挑战性问题氨抑制可以通过氨汽提来解决。
Antibiotic residues are difficult to be treated or utilized because of their high water content and residual antibiotics. This article is devoted to investigating the possibility of biogas production from cephalosporin C residue (CPCAR), one typical type of antibiotic residues, via anaerobic digestion in combination with hydrothermal pretreatment (HTPT). The results from the bench-scale experiments showed that the combination of HTPT and anaerobic digestion can provide a viable way to convert CPCAR into biogas, and the biogas and methane yields reached 290 and 200 ml (g TS)−1, respectively. This article further evaluated the proposed technology in terms of energy balance and technical feasibility based on theoretical calculation using the data from a pilot HTPT test. It was shown that the process is totally self-sufficient in energy and its main challenging problem of ammonia inhibition can be solved via ammonia stripping.