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热水解污泥-香蕉秸秆改善厌氧消化性能实验

邓清华,  张健,  冼萍,  方晴,  蒙政成

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文章导航 > 环境工程  > 2020 >  38(5): 144-149
邓清华, 张健, 冼萍, 方晴, 蒙政成. 热水解污泥-香蕉秸秆改善厌氧消化性能实验[J]. 环境工程, 2020, 38(5): 144-149. doi: 10.13205/j.hjgc.202005025
引用本文: 邓清华, 张健, 冼萍, 方晴, 蒙政成. 热水解污泥-香蕉秸秆改善厌氧消化性能实验[J]. 环境工程, 2020, 38(5): 144-149. doi: 10.13205/j.hjgc.202005025
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DENG Qing-hua, ZHANG Jian, XIAN-Ping, FANG Qing, MENG Zheng-cheng. IMPROVING ANAEROBIC DIGESTIBILITY OF SLUDGE PRETREATED BY THERMAL HYDROLYSIS AND BANANA STRAW ADDED[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 144-149. doi: 10.13205/j.hjgc.202005025
Citation: DENG Qing-hua, ZHANG Jian, XIAN-Ping, FANG Qing, MENG Zheng-cheng. IMPROVING ANAEROBIC DIGESTIBILITY OF SLUDGE PRETREATED BY THERMAL HYDROLYSIS AND BANANA STRAW ADDED[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 144-149. doi: 10.13205/j.hjgc.202005025
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热水解污泥-香蕉秸秆改善厌氧消化性能实验

doi: 10.13205/j.hjgc.202005025

  • 1. 广西大学 土木建筑工程学院, 南宁 530004;

  • 2. 广西壮族自治区政府投资项目评审中心, 南宁 530022;

  • 3. 广西大学 轻工与食品工程学院, 南宁 530004;

  • 4. 广西大学 资源环境与材料学院, 南宁 530004

基金项目: 

广西自然科学基金项目(2016GXNSFAA380294)。

国家自然科学基金项目(21167003)

详细信息
    作者简介:

    邓清华(1981-),男,高级工程师,博士研究生,主要研究方向为水处理理论和新技术,长期从事政府投资项目前期论证及技术经济评审工作。40225763@qq.com

    通讯作者:

    冼萍(1960-),女,教授、博士生导师,主要研究方向为生物质能的热化学转化技术、城镇生活污水及工业废水的治理技术、传质及分离工程的技术开发与应用。xianping@gxu.edu.cn

IMPROVING ANAEROBIC DIGESTIBILITY OF SLUDGE PRETREATED BY THERMAL HYDROLYSIS AND BANANA STRAW ADDED

  • 1. College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China;

  • 2. Guangxi Zhuang Autonomous Region Government Investment Project Evaluation Center, Nanning 530022, China;

  • 3. College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China;

  • 4. College of Resources, Environment and Materials, Guangxi University, Nanning 530004, China

    摘要
  • 摘要: 采用添加高有机质含量的香蕉秸秆协同厌氧以及高温高压热水解预处理的方法,可显著提高低有机质污泥甲烷产率和厌氧消化性能。生化甲烷潜力实验结果表明:经过预处理后的污泥、香蕉秸秆及其混合物厌氧消化最大累积甲烷产量分别为388,372,537 mL/gVS,甲烷提升产量及协同效应显著。在污泥、香蕉秸秆及其混合物各自的最佳预处理条件下,甲烷产量达到80%的时间(T80)分别为12,19,17 d;SCOD溶出值分别为预处理前的14.4,2.8,5.9倍;厌氧消化结束后,SCOD去除率分别为93.7%、89.8%、94.5%;VS去除率分别为48.4%、48.8%、59.2%;热水解预处理使液相中溶解性蛋白质和VFA、溶解性多糖的浓度增加明显,分别为预处理前的14.5,5.1,8.2倍,随后的厌氧消化阶段的去除率分别为94.4%、94.9%和95.2%,稍高于单独厌氧消化的有机质降解率。
    Abstract: The anaerobic biodegradability and methane yield of the low organic municipal sludge could be significantly improved on anaerobic co-digestion, by combing banana straw with high temperature thermal hydrolysis pretreatment (HTHP). In the combining system of anaerobic co-digestion and HTHP, the methane yield of municipal sludge, banana straw and their mixture were 388, 372, 537mL/gVS, respectively, which showed the significant synergistic effect. In their own optimal pretreatment condition of sludge, banana straw and their mixture, the T80 was 12, 19, 17 days, respectively, which could be represented as hydraulic retention time of anaerobic digestion; SCOD dissolution ratio was respectively 14.4, 2.8, and 5.9 times of those before pretreatment; SCOD removal rate was 93.7%, 89.8% and 94.5% after anaerobic digestion, and the removal rate of VS was 48.4%, 48.8% and 59.2%, respectively. The concentration of soluble protein, VFA and soluble polysaccharide were increased significantly, which was 14.5, 5.1 and 8.2 times of that before HTTP, and the removal rate was 94.4%, 94.9% and 95.2% in the subsequent anaerobic digestion stage, which was slightly higher than single treatment.
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  • 收稿日期:  2019-09-23

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