设施园艺废弃物厌氧消化产沼气特性
为获得典型设施园艺废弃物的产沼气特性,该文分析了5种不同设施园艺废弃物-黄瓜蔓、西红柿茎叶、小白菜、西瓜蔓和青草的物料特性,并在中温条件下研究了5种原料的厌氧发酵产气特性;在38℃条件下,以西瓜蔓为例进行了分离式两相厌氧消化工艺(separated two phase anaerobic digestion,STP)回流方式比较试验,比较分析了西瓜蔓在渗滤液喷淋和浸泡2种回流方式下的产气性能,研究了不同回流方式下的渗滤液pH值、沼气产量、甲烷含量的变化,为设施园艺废弃物的资源化利用提供了有益的参考。试验结果表明:5种设施园艺废弃物的产气潜力由大到小依次为西瓜蔓、小白菜、黄瓜蔓、西红柿茎叶和青草...
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| Published in | 农业工程学报 Vol. 30; no. 15; pp. 256 - 263 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
农业部规划设计研究院,农业部农业废弃物能源化利用重点实验室,北京 100125
2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2014.15.033 |
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| Summary: | 为获得典型设施园艺废弃物的产沼气特性,该文分析了5种不同设施园艺废弃物-黄瓜蔓、西红柿茎叶、小白菜、西瓜蔓和青草的物料特性,并在中温条件下研究了5种原料的厌氧发酵产气特性;在38℃条件下,以西瓜蔓为例进行了分离式两相厌氧消化工艺(separated two phase anaerobic digestion,STP)回流方式比较试验,比较分析了西瓜蔓在渗滤液喷淋和浸泡2种回流方式下的产气性能,研究了不同回流方式下的渗滤液pH值、沼气产量、甲烷含量的变化,为设施园艺废弃物的资源化利用提供了有益的参考。试验结果表明:5种设施园艺废弃物的产气潜力由大到小依次为西瓜蔓、小白菜、黄瓜蔓、西红柿茎叶和青草,其中西瓜蔓的单位干物质产气量达到508.85 mL/g(干物质total solid,TS);设施园艺废弃物对分离式两相厌氧消化工艺(STP)具有良好的适应性,渗滤液喷淋回流方式要优于浸泡回流方式,其产气量和甲烷含量更高,其中累计产气量达到506.39 L,比浸泡回流方式高出10.81%,甲烷体积分数基本稳定在53%~56%,系统稳定性更好,研究结果为设施园艺废弃物的处理与利用提供参考。 |
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| Bibliography: | 11-2047/S biogas;anaerobic digestion;agricultural wastes;protected horticulture residues;separated two phase anaerobic digestion Luo Juan,Tian Yishui,Chen Ling,Song Chengjun,Qi Yue,Li Xiaogang,Zhao Lixin (Chinese Academy of Agricultural Engineering, Key Laboratory of Energy Resource Utilization from Agricultural Residues, Beijing 100125, China) With the large-scale popularization of protected horticulture, many protected horticulture residues, which include vegetable stalks and fruit scrap, followed in recent years;and it is imperative to adopt a method of properly handling the residues. Protected horticulture residues have characteristics of high water content, high volatile solids content, and high biodegradability. If the residues are treated simply as general living garbage, it will lead to not only high costs but also a waste of resources. There are many studies abroad using anaerobic digestion processes to dealing with protected horticulture residues, while the domestic relevant reports are fewer. To obtai |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2014.15.033 |