| 碱-热法预处理改善污泥厌氧消化性能的试验研究 |
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| 引用本文： | ZHENG Zhen,LIU Bin,YU Xu. 碱-热法预处理改善污泥厌氧消化性能的试验研究[J]. 水资源与水工程学报, 2011, 22(3): 110-112 |
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| 作者姓名： | ZHENG Zhen LIU Bin YU Xu |
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| 作者单位： | 上海理工大学环境与建筑学院,上海,200093 |
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| 摘 要： | 用传统热化学法(简称同步法)促进污泥水解,将污水厂浓缩污泥预先用NaOH处理24 h,然后再进行热处理(简称碱-热法)。以生物化学甲烷势(BMP)试验后污泥的溶解性化学需氧量(SCOD)去除率和产气量来评价碱-热法预处理对污泥厌氧消化性能的影响。BMP试验结果表明:经碱-热法处理的污泥,SCOD去除率是同步法预处理污泥SCOD去除率的1.06~1.31倍,产气量是同步法预处理污泥产气量的1.08~1.31倍。可见,碱-热法能有效提高污泥中有机物的可生化性,减少厌氧消化后污泥的剩余SCOD浓度,提高生物气产量。
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| 关 键 词： | 污泥 水解 厌氧消化 生物化学甲烷势 |
Enhancement of sewage sludge anaerobic digestibility by pretreatment of alkaline-thermal methods |
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| ZHENG Zhen,LIU Bin,YU Xu. Enhancement of sewage sludge anaerobic digestibility by pretreatment of alkaline-thermal methods[J]. Journal of water resources and water engineering, 2011, 22(3): 110-112 |
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| Authors: | ZHENG Zhen LIU Bin YU Xu |
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| Affiliation: | ZHENG Zhen,LIU Bin,YU Xu(School of Environment and Architecture,University of Shanghai for Science & Technology,Shanghai 200093,China) |
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| Abstract: | Traditional thermochemical method promoted the thermal hydrolysis treatment on sewage sludge which had been pretreated by alkaline for 24 hours.The SCOD removal rate of sludge and the biogas production of anaerobic digestion were examined to investigate the effects of alkaline-thermal hydrolysis on the digestibility of sewage sludge.Biochemical methane potential(BMP) experiment results showed that the SCOD removal rate of alkaline-thermal pretreatment is 1.06~1.31 times as high as the traditional thermochem... |
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| Keywords: | sewage sludge hydrolysis anaerobic digestion biochemical methane potential |
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