Dewatering of livestock waste using by liquefied dimethyl ether

液化二甲醚对畜禽粪便进行脱水

• 批准号: 23360231
• 负责人: OSHITA Kazuyuki
• 金额: $ 12.31万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23360231/
• 关键词: 畜産廃棄物; 液化ジメチルエーテル; 動物医薬品; 脱水; 乾燥; 省エネルギー; 再利用; 燃料化; 家畜糞尿; 抽出; 結合水

In this study, an advanced dewatering process for livestock manure, operated at room temperature with low energy requirements due to the use of liquefied dimethyl ether (DME), was investigated experimentally to generate dry livestock manure as a solid fuel.The results showed that the 80% water content in cattle manure was decreased to 5.7% when DME was applied at 38 mL-DME/g-manure with a 70 min dewatering time, which represented the optimized dewatering conditions. Under these conditions, the wet based lower heating value of the dewatered manure was 18 times higher than that of the original cattle manure, and odor and self-pyrogenicity of the dewatered manure were decreased by liquefied DME dewatering. As for the behavior of the medicinal products used by veterinarians, the more hydrophobic medicinal products is, the higher it have an extractability by liquefied DME. Therefore, a DME dewatering system could be controlled by hydrophobic environment.

在这项研究中，一种先进的牲畜粪便脱水工艺，由于使用液化二甲醚（DME），结果表明，当DME用量为38 mL-DME/g时，牛粪中80%的水分可降至5.7%。最佳脱水条件为：有机肥脱水时间70 min。在此条件下，脱水后牛粪的湿基低热值比未脱水牛粪高18倍，液化二甲醚脱水后牛粪的臭味和自热性降低。对于兽医使用的药品的行为，疏水性越强的药品，其通过液化DME的可浸提性越高。因此，DME脱水系统可以通过疏水环境来控制。

项目成果

液化ジメチルエーテルを用いた家 畜糞の乾燥に関する研究

液化二甲醚干燥畜禽粪便的研究

• 发表时间: 2012
• 作者: 戸田覚之;大下和徹;高岡昌輝;松川和嗣;藤原拓;神田英輝
• 通讯作者: 神田英輝

液化ジメチルエーテルを用いた家畜糞の乾燥に関する研究

液化二甲醚干燥畜禽粪便的研究

• 发表时间: 2012
• 作者: 梶原康至;溝上章志;藤見俊夫;戸田覚之
• 通讯作者: 戸田覚之