Effects of chlortetracycline amended feed on anaerobic sequencing batch reactor performance of swine manure digestion
Effects of chlortetracycline amended feed on anaerobic sequencing batch reactor performance of swine manure digestion
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DOI：
10.1016/j.biortech.2012.08.077
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发表时间：
2012-12-01
影响因子：
11.4
通讯作者：
Stone, James J.
中科院分区：
文献类型：
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作者：
Dreher, Teal M.;Mott, Henry V.;Stone, James J.
采用厌氧序批式反应器(ASBRs)研究了抗菌剂金霉素(CTC)对猪粪泥厌氧消化(AD)的影响。以2.5g/L/d的速度装入从饲喂四氯化碳和不添加抗菌剂的日粮中采集的猪的粪便，将泥浆间歇地投加到4个9.5 L实验室规模的厌氧序批式反应器中，其中两个投加无菌肥，两个投加四氯化碳改良的粪便，共完成4个28天的ASBR周期。粪便中四氯化碳含量在采集后即刻为28 mg/L，稀释后为1.02 mg/L，储存250d。CTC对ASBR产气量没有明显的抑制作用，但在56d期间，甲烷的体积组成(周期1和周期2分别约为13%和15%)明显低于未加抗菌剂的ASBR。(C)2012爱思唯尔有限公司。保留所有权利。
The effects of antimicrobial chlortetracycline (CTC) on the anaerobic digestion (AD) of swine manure slurry using anaerobic sequencing batch reactors (ASBRs) was investigated. Reactors were loaded with manure collected from pigs receiving CTC and no-antimicrobial amended diets at 2.5 g/L/d. The slurry was intermittently fed to four 9.5 L lab-scale anaerobic sequencing batch reactors, two with no-antimicrobial manure, and two with CTC-amended manure, and four 28 day ASBR cycles were completed. The CTC concentration within the manure was 28 mg/L immediately after collection and 1.02 mg/L after dilution and 250 days of storage. CTC did not inhibit ASBR biogas production extent, however the volumetric composition of methane was significantly less (approximately 13% and 15% for cycles 1 and 2, respectively) than the no-antimicrobial through 56 d. CTC decreased soluble chemical oxygen demand and acetic acid utilization through 56 d, after which acclimation to CTC was apparent for the duration of the experiment. (c) 2012 Elsevier Ltd. All rights reserved.