Effect of low levels of oxytetracycline on anaerobic digestion of cattle manure

被引：0

作者：

Mushtaq, Moniba ^{[1
]}

Zeshan ^{[1
]}

Zeeshan, Muhammad ^{[1
]}

Nawaz, Ismat ^{[2
]}

Hassan, Muneeb ^{[1
]}

机构：

[1] Institute of Environmental Sciences and Engineering (IESE), School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Islamabad,44000, Pakistan

[2] Department of Biosciences, COMSATS University Islamabad, Islamabad Campus, Islamabad, Pakistan

来源：

Bioresource Technology | 2022年 / 349卷

关键词：

Biogas; -; Antibiotics; Manures; Fertilizers;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Cattle manure is rich in organic matter and nutrients, but it may also contain harmful substances such as residual antibiotics and other toxic compounds. Oxytetracycline (OTC) is a widely used veterinary antibiotic and its presence in manure can affect the subsequent anaerobic digestion process. This study evaluated the effect of OTC concentrations viz. 0.12, 0.3, 0.6, 1.2, 3, 6 and 12 mg L−1 on batch mesophilic anaerobic digestion of cattle manure. The results showed that cumulative biogas yield decreased by 25, 29 and 55% at 3, 6 and 12 mg OTC L−1 in contrast to control. Volatile solids removal was 39% for control which reduced to 13% in 12 mg L−1 OTC spiked reactor. Effect on stability parameters was significant at OTC concentrations from 1.2 to 12 mg L−1. Two different kinetic models were used for biogas data validation and the modified Gompertz model best fitted to the experimental data. © 2022 Elsevier Ltd

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