• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of environmental analytical chemistry >Evaluating the biochemical potential for Irbid's food waste as a source for energy
【24h】

Evaluating the biochemical potential for Irbid's food waste as a source for energy

机译：评估羊羔食物垃圾作为能量来源的生化潜力

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Solid waste generated from the city of Irbid is all directed to a local unlined landfill with no gas collection system. More than half of the waste stream is made of food waste which turns the landfill to a concentrated point source of greenhouse gases. To assess the impact that the landfill has at the moment on global warming and to evaluate the future value of the city's waste as a source of biogas, 20 trucks of municipal solid waste were sampled. In addition, food waste samples from Irbid were collected from five different sources for 12 weeks to quantify their generation rates and to measure their components and chemical composition. Irbid's solid waste was found to have a distinctively high biodegradable content 68%, which is typical of developing countries' solid waste. Physical assessment showed that 38%, 6%, 33% and 23% of the food waste was rice, meat, fruits and vegetables, and bread, respectively. Measured methane yields for the volatile solids (VS) in rice, meat, fruits and vegetables, and bread were 362, 499, 352 and 375 mL/g VS, respectively. A representative food waste sample was created to test the actual methane yield and compare it to calculated one. Actual methane yield (414 mL/g VS) was greater than the calculated value (370 mL/g VS) based on food type proportions and their specific methane yield. To assess the anaerobic biodegradability of food waste, a stoichiometric calculation of the methane production was made based on the elemental analysis of all food waste elements. Food waste was found to have the chemical formula C7H16O5N and calculated methane potential of 447 mL/g VS; indicating 85% anaerobic biodegradability of food waste, which makes Irbid's waste perceived as a valuable source of energy.
机译：从伊尔维登市产生的固体废物都是针对局部无衬里的垃圾填埋场，没有气体收集系统。超过一半的废物流是由食物垃圾制成的，使垃圾填埋场变成温室气体的集中点来源。为了评估垃圾填埋场目前在全球变暖的影响，并评估城市废物作为沼气来源的未来价值，采样了20卡车的市政固体废物。此外，来自羊巢的食物废物样品从五种不同来源收集12周，以量化它们的发电率并测量它们的组分和化学组成。发现IRBID的固体废物具有明显高的可生物降解的含量68％，这是发展中国家的固体废物的典型。物理评估表明，38％，6％，33％和23％的食物垃圾分别是水稻，肉，水果和蔬菜和面包。测得水稻，肉，水果和蔬菜中挥发性固体（Vs）的甲烷产率分别为362,499,352和375ml / g vs。产生代表性食物废物样品以测试实际的甲烷产量并将其与计算1进行比较。实际甲烷产率（414​​ml / g）基于食物型比例和其特定的甲烷产率大于计算值（370ml / g vs）。为了评估食物垃圾的厌氧生物降解性，基于所有食品废物元素的元素分析，对甲烷产生的化学计量计算。发现食物废物具有化学式C7H16O5N，计算447ml / g vs的甲烷电位;表明食物垃圾的85％厌氧生物降解性，这使得羊羔的废物被认为是有价值的能量来源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号