Development of Thermophilic Oxic Process for High Rate Degradation of Livestock Organic Waste and Recovery of Nitrogen and Phosphorus Resources

高效降解畜牧有机废弃物及氮磷资源回收的高温好氧工艺开发

• 批准号: 11555141
• 负责人: NISHIMURA Osamu
• 金额: $ 8.45万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555141/
• 关键词: oxic fermentation process; organic waste; waste edible oil; nitrogen; phosphorus; thermophile; livestock; 高温好気醗酵; 畜産系廃棄物; リニ; 高温好気発酵; ヨシ

In this study, bench scale and pilot plant experiment using a swine waste were carried out in order to develop thermophilic oxic fermentation process for high rate degradation of livestock organic waste and recovery of nitrogen and phosphorus resources. The results obtained by this study are summarized as follows.1) In bench scale experiment, it was possible to remove carbon of about 86% and moisture of 98% under the conditions of BOD loading of 3 kg m^<-3> day^<-1>, air flow of 100 L m^<-3> min^<-1> and adding edible oil of 120 mL.2) 55% was optimum as average water content, and ATP concentration and thermophile number became highest under this condition.3) As a result of the long-term operation in bench scale experiment, it was able to treat swine waste efficiently during first 60 days and the treatment efficiency lowered after that. The treatment efficiency was recovered by changing cedar chip of 50% on day 86.4) In the pilot plant experiment, 64℃ of fermentation temperature and weight loss rate of 91% were achieved. In the water, which accumulated in the cooler, high concentrated T-N was detected, though TOC and T-P were not detected. It was cleared nitrogen was removed as an ammonia gas.5) By shortening input interval of organic waste from 24 hours to 8 hours, treatment volume increased over the double. It was shown that the optimization of input condition of organic waste enabled the high rate degradation.

本研究以猪场废弃物为原料，进行了高温好氧发酵工艺的小试和中试研究，旨在开发高效降解畜禽有机废弃物并回收氮磷资源的高温好氧发酵工艺。结果表明：（1）在实验室条件下，当BOD负荷为3 kg·m ~（-1）·d ~（-1）<-3><-1>，空气流量为100 L·m ~（-1）·<-3>min <-1>~（-1），食用油添加量为120 mL时，除碳率可达86%左右，水分去除率可达98%左右;（2）平均含水量为55%时，在此条件下，ATP浓度和嗜热菌数均达到最高值。3）在长期的小试运行中，在最初的60天内，它能够有效地处理猪排泄物，之后处理效率降低。在第86天更换50%的雪松片即可恢复处理效率。4）中试发酵温度为64℃，失重率为91%。在冷却器中积累的水中，检测到高浓度的T-N，但未检测到TOC和T-P。5）通过将有机废物的输入间隔从24小时缩短到8小时，处理体积增加了一倍以上。结果表明，有机废物输入条件的优化可以实现高速率降解。

项目成果

高谷圭吾, 西村修, 千葉信男, 高橋一郎: "畜産排水における17β-エストラジオールの処理過程及び環境中での挙動調査"土木学会東北支部技術研究発表会. 740-741 (2001)

Keigo Takatani、Osamu Nishimura、Nobuo Chiba、Ichiro Takahashi：“畜牧废水中 17β-雌二醇的处理过程及其在环境中的行为的调查”日本土木工程师学会东北分会技术研究会议 740-741（2001）。

C.W.Lee,N.Chiba,O.Nishimura,Y.Yamada,R.Sudo: "Complete treatment of swine waste by developing thermophilic oxic process"Water Science and Technology. 42(3-4). 363-368 (2000)

C.W.Lee、N.Chiba、O.Nishimura、Y.Yamada、R.Sudo：“通过开发嗜热氧化工艺来彻底处理猪排泄物”水科学与技术。

千葉信男, 西村修: "下水汚泥のコンポスト化における微生物の動態"再生と利用. 24・91. 87-93 (2001)

千叶伸夫、西村修：“堆肥污泥中的微生物动力学”24・91（2001）。

濱中俊輔, 坂巻隆史, 千葉信男, 西村修: "高温好気醗酵法における攪拌の影響に関する研究"日本水環境学会年会講演集. (発表予定). (2002)

Shunsuke Hamanaka、Takashi Sakamaki、Nobuo Chiba、Osamu Nishimura：“高温好氧发酵中搅拌的影响研究”日本水环境学会年会论文集（2002 年）。

C.W.LEE,N.CHIBA,O.NISHIMURA,K.YAMADA,R.SUDO: "Complete Treatment of Swine Waste by Developing Thermoplnlic Oxic Process"Conference Preprint of ASIAN WATERQUAL '99, Taipei, Taiwan. vol.1. 47-52 (1999)

C.W.LEE、N.CHIBA、O.NISHIMURA、K.YAMADA、R.SUDO：“通过开发热氧工艺彻底处理猪废物”ASIAN WATERQUAL 99 会议预印本，台湾台北。