摘要

通过比较餐厨垃圾厌氧一次消化、餐厨垃圾与鸡粪共消化、餐厨垃圾与废活性污泥共消化过程中厌氧消化性能和厌氧转化过程，评价了活性炭( AC )对沼气产生和抗生素抗性基因( ARGs )去向的影响。结果表明，在厌氧消化器中添加AC通过细菌和古菌的富集，提高了甲烷产量至少两倍。常规消化过程表现出去除某些类型的ARG的能力，如tetA，tetX，sul1，sul2，cmlA，floR和intl1。在厌氧消化器中补充AC可增强食物垃圾单一消化过程中大部分ARG的去除。鸡粪和废活性污泥等含有一定抗生素的共基质在共消化过程中的影响较小。

The effects of activated carbon (AC) on methane production and the fate of antibiotic resistance genes (ARGs) were evaluated through comparing the anaerobic digestion performance and transformation of ARGs among anaerobic mono-digestion of food waste, co-digestion of food waste and chicken manure, and co-digestion of food waste and waste activated sludge. Results showed that adding AC in anaerobic digesters improved methane yield by at least double through the enrichment of bacteria and archaea. Conventional digestion process showed ability in removing certain types of ARGs, such as tetA, tetX, sul1, sul2,cmlA, floR, and intl1. Supplementing AC in anaerobic digester enhanced the removal of most of the ARGs in mono-digestion of food waste. The effects tended to be minimal in co-digestion of co-substrates such as chicken manure and waste activated sludge, both of which contain a certain amount of antibiotics.

https://www.sciencedirect.com/science/article/pii/S0960852417319119#!