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厨房垃圾的厌氧消化
引用本文:史红钻,张波,蔡伟民. 厨房垃圾的厌氧消化[J]. 哈尔滨工业大学学报, 2006, 38(5): 818-821
作者姓名:史红钻  张波  蔡伟民
作者单位:上海交通大学,环境科学与工程学院,上海,200240;上海交通大学,环境科学与工程学院,上海,200240;上海交通大学,环境科学与工程学院,上海,200240
摘    要:厨房垃圾易于酸化,为了提高酸化的缓冲能力,对带有消化液循环的两阶段间歇、湿法厌氧消化处理厨房垃圾工艺的稳定性和可操作性进行了研究.实验的运行效果良好,解决了pH的稳定性问题,稳定运行长达100多天.酸化相的酸化率达到了每克TS产生1 197.1 mgVFA,TS的去除率达到了72.26%,甲烷相的产气量平均为每克TS产生0.29 L气体.用第二相消化液的出水来调节pH值取得了满意的结果,没有氨中毒现象的发生.

关 键 词:厌氧消化  厨房垃圾  两阶段  消化液循环
文章编号:0367-6234(2006)05-0818-04
收稿时间:2004-07-10
修稿时间:2004-07-10

Anaerobic digestion for kitchen wastes
SHI Hong-zuan,ZHANG Bo,CAI Wei-min. Anaerobic digestion for kitchen wastes[J]. Journal of Harbin Institute of Technology, 2006, 38(5): 818-821
Authors:SHI Hong-zuan  ZHANG Bo  CAI Wei-min
Affiliation:School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China
Abstract:In order to improve the buffering capacity,the stability and operational performance of two-stage,batch and wet anaerobic digestion with liquor recycle were studied using a mixture of kitchen wastes as the digestion substrate.The experiment is effective and the value of pH is stable for over 100 days without any requirement for pH control.An acidification efficiency of about 1 197.1 mg VFA from per gram TS and 72.26% TS removal rate were attained in the acidification reactor.About 0.29 L biogas yield from per gram TS was achieved in the methanogenic reactor.The use of the second stage digester effluent to improve pH in the acidogenic reactor was satisfactory and no result of accumulation of ammonia toxicity was observed.
Keywords:anaerobic digestion  kitchen wastes  two stage  liquor recycling
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