银纳米颗粒对污水污泥和农业废弃物共堆肥的影响：有机物和氮的演变。
The impact of silver nanoparticles on the co-composting of sewage sludge and agricultural waste: Evolutions of organic matter and nitrogen.
机构信息
College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, PR China.
出版信息
Bioresour Technol. 2017 Apr;230:132-139. doi: 10.1016/j.biortech.2017.01.032. Epub 2017 Jan 19.
This study evaluated the influence of silver nanoparticles (AgNPs) on evolutions of organic matter and nitrogen during co-composting of sewage sludge and agricultural waste. Two co-composting piles were conducted, one was treated without AgNPs (pile 1) and the other with AgNPs (pile 2). Results showed that the AgNPs affected the quality of final composts. Less organic matter (OM) losses were determined in pile 2 (57.96%) than pile 1 (61.66%). 27.22% and 30.1% of the initial total organic matter (TOC) was decomposed in pile 1 and pile 2, respectively. The final water soluble carbon (WSC) concentration in pile 2 was 23559.27mg/kg DW compost which was significantly lower than pile 1 (25642.75mg/kg DW compost). Changes of different forms of nitrogen in the two piles showed that AgNPs could reduce the losses of TN but increase the losses of mineral N.
本研究评估了银纳米粒子（AgNPs）对污水污泥和农业废物共堆肥过程中有机物和氮演变的影响。进行了两个共堆肥堆，一个未处理 AgNPs（堆 1），另一个处理了 AgNPs（堆 2）。结果表明，AgNPs 影响最终堆肥的质量。堆 2（57.96%）中有机物（OM）损失低于堆 1（61.66%）。堆 1 和堆 2 中初始总有机碳（TOC）分别有 27.22%和 30.1%被分解。堆 2 中的最终水溶性碳（WSC）浓度为 23559.27mg/kg DW 堆肥，明显低于堆 1（25642.75mg/kg DW 堆肥）。两个堆中不同形式氮的变化表明，AgNPs 可以减少 TN 的损失，但会增加矿化氮的损失。
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