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首页> 外文期刊>Iranica Journal of Energy and Environment >Anaerobic Co-digestion of Food Waste with Cow Manure
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Anaerobic Co-digestion of Food Waste with Cow Manure

机译:与牛粪的厌氧共同消化食物垃圾

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摘要

The composition of waste generated in urban areas of Nepal is primarily decomposable which provides scope to convert the waste into energy. In addition, organic fraction of municipal waste is a serious environmental and economic burden in Nepal. In this study, samples from food waste were taken from household of Biratnagar Metropolitan city and Kathmandu University Canteen, Dhulikhel. The samples were analyzed for physical and chemical properties and biogas production. The feed containing 6% TS were analyzed for the potential of biogas production from the canteen food waste (CFW) of Kathmandu University (KU) and household food waste (HFW) from Biratnagar in ambient and control temperature (35 °C) in a batch reactor. This was also conducted for food waste mixed with 30% cow manure in both the conditions. The average total solid and volatile solid for BFW were 17.7 and 93.2% of TS and CFW were 19.9 and 90.2% of TS, respectively. In every run of the experiment, the volume changes of gas were monitored. Both in the ambient and the controlled temperature, biogas production and yield were higher when 30% cow dung as inoculum was added in both samples. Moreover, the biogas production and yield of CFW was also higher than the BFW at different conditions. This shows that food wastes characteristics and biogas production potential varies depending on the source of the food waste, inoculum added and operating condition for the anaerobic digestion process.
机译:尼泊尔城市地区产生的废物的组成主要是可分解的,这提供了将废物转化为能量的范围。此外,市政废物的有机分数是尼泊尔的严重环境和经济负担。在这项研究中,来自粮食废物的样本来自Biratnagar Metropolitan City和加德满都大学Canteen,Dhulikhel。分析样品以进行物理和化学性质和沼气生产。分析含有6%TS的饲料,用于从加德满都大学(KU)的食堂食品废物(CFW)和来自BiratNagar的家庭食物废物(HFW)的沼气生产的潜力在批量中,控制温度(35°C)反应堆。这也是在条件下与30%牛粪混合的食物废物进行。 BFW的平均全固体和挥发性固体分别为17.7%,93.2%的TS和CFW分别为Ts,9.9%和90.2%。在每次实验中,监测气体的体积变化。在两个样品中加入30%牛粪时,在环境和受控温度下,沼气产生和产量较高,在两种样品中加入。此外,CFW的沼气产量和产率也高于不同条件的BFW。这表明食品废弃的特性和沼气生产潜力根据食品废物,占状物添加和厌氧消化过程的操作条件而变化。

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