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首页> 外文期刊>Journal of Hazardous Materials >Performance of in-vessel composting of food waste in the presence of coal ash and uric acid
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Performance of in-vessel composting of food waste in the presence of coal ash and uric acid

机译：粉煤灰和尿酸存在下餐厨垃圾的堆肥性能

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摘要

Massive quantities of food waste often coexist with other agroindustrial and industrial waste, which might contain coal ash (CA) and uric acid (UA). This study investigated the influence of CA and UA on the composting of food waste in the in-vessel system. The patterns of food waste composting were compared among various combinations. The results showed that the temperature level was enhanced in the presence of CA and UA during the first 8 days. The significant drop in pH was observed in the treatment without any amendment. But the presence of CA could alleviate the drop of pH. More intensive organic mass reduction took place in the treatments with amended CA and UA in the first half of process. The O_2 uptake rate in the reactor with CA and UA was higher than that with only CA in the early stage. Both thermophilic and mesophilic microorganisms were present throughout the composting period. The populations of both thermophilic and mesophilic microorganisms were influenced when amended with CA and UA. The decreasing trend in C/N ratio was shown in all the reactors, while a relatively lower C/N ratio was obtained in the series with both CA and UA.
机译：大量的食物垃圾经常与其他农业工业和工业垃圾共存，其中可能包含煤灰（CA）和尿酸（UA）。这项研究调查了CA和UA对容器内系统中食物垃圾堆肥的影响。比较了各种组合中食物垃圾堆肥的方式。结果表明，在前8天中，在存在CA和UA的情况下温度水平升高。在不作任何修改的情况下，观察到pH值明显下降。但是，CA的存在可以减轻pH的下降。在过程的前半段中，用改良的CA和UA进行的处理使有机物质量降低的程度更大。在早期阶段，CA和UA的反应器中O_2的吸收率高于仅CA的反应器。整个堆肥期间均存在嗜热和中温微生物。用CA和UA修改时，嗜热和中温微生物的种群均受到影响。在所有反应器中均显示出C / N比的下降趋势，而在CA和UA的系列中，获得了相对较低的C / N比。

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  • 来源
    《Journal of Hazardous Materials》 |2012年第2012期|p.38-45|共8页
  • 作者

    Chun-Jiang An; Guo-He Huang; Yao Yao; Wei Sun; Kai An;

  • 作者单位

    Faculty of Engineering and Applied Science, University ofRegina, Regina, Saskatchewan, S4S 0A2, Canada;

    Faculty of Engineering and Applied Science, University ofRegina, Regina, Saskatchewan, S4S 0A2, Canada;

    Faculty of Engineering and Applied Science, University ofRegina, Regina, Saskatchewan, S4S 0A2, Canada;

    Faculty of Engineering and Applied Science, University ofRegina, Regina, Saskatchewan, S4S 0A2, Canada;

    MOE Key Laboratory of Regional Energy Systems Optimization, S&C Academy of Energy and Environmental Research, North China Electric Power University, Beijing 102206, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composting; food waste; coal ash; uric acid; in-vessel system;

    机译：堆肥食物浪费;煤灰;尿酸;血管内系统;

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