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| 金属离子强化餐厨垃圾高温厌氧发酵产酸 | |
| 引用本文： | 王艳琴, 张洁, 赵晨曦, 刘月娥. 金属离子强化餐厨垃圾高温厌氧发酵产酸[J]. 环境工程学报, 2016, 10(4): 2051-2056. doi: 10.12030/j.cjee.20160476 |
| 作者姓名： | 王艳琴 张洁 赵晨曦 刘月娥 |
| 作者单位： | 1.新疆大学化学化工学院, 石油天然气精细化工教育部和自治区重点实验室, 乌鲁木齐 830046; 2.新疆环境保护科学研究院, 乌鲁木齐 830011 |
| 基金项目： | 新疆维吾尔自治区自然科学基金(资助项目2013211A046) |
| 摘 要： | 以经过高温驯化的污泥作为厌氧微生物,以餐厨垃圾作为发酵基质,向发酵体系中加入不同浓度Fe2+、Mg2+和Ni2+进行单因素实验。实验结果表明:当Fe2+、Mg2+和Ni2+加入量分别为800、250和0.50 mg/L时,挥发性脂肪酸(VFA)的产量最大,分别为23.58、22.38和23.08 g/L;加入不同浓度Fe2+、Mg2+和Ni2+的厌氧发酵液相产物中丁酸含量均最高,但在一定浓度范围内随着金属离子的添加,发酵产物中丁酸所占的比例逐渐减小,乙酸所占比例逐渐增加;加入适量金属离子在一定程度上能够抑制发酵液中氨氮的溶出。 |
| 关 键 词： | Fe2+ Mg2+ Ni2+ 餐厨垃圾 高温厌氧发酵 挥发性脂肪酸 |
| 收稿时间： | 2015-03-12 |
Enhancement of volatile fatty acid production from anaerobic fermentation of food wastes under thermophilic condition by adding metal ions |
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| Wang Yanqin, Zhang Jie, Zhao Chenxi, Liu Yuee. Enhancement of volatile fatty acid production from anaerobic fermentation of food wastes under thermophilic condition by adding metal ions[J]. Chinese Journal of Environmental Engineering, 2016, 10(4): 2051-2056. doi: 10.12030/j.cjee.20160476 | |
| Authors: | Wang Yanqin Zhang Jie Zhao Chenxi Liu Yuee |
| Affiliation: | 1.Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China; 2.Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China |
| Abstract: | In this study, food waste was fermented using acclimated anaerobic sludge under thermophilic conditions.Single-factor experiments were conducted by adding different concentrations of Fe2+ Mg2+ and Ni2+ into the fermentation system.Highest VFA output (23.58, 22.38, and 23.08 g/L) was obtained when 800, 250, and 0.5 mg/L of Fe2+, Mg2+ and Ni2+, respectively, were added to the fermentation system.Butyrate was dominant in liquid products obtained from the anaerobic fermentation system containing different concentrations of Fe2+, Mg2+ and Ni2+.However, acetate concentration increased and butyrate concentration decreased after adding the metal ions.Further, addition of appropriate concentrations of the metal ions inhibited the release of ammonia in the fermentation system. |
| Keywords: | Fe2+ Mg2+ Ni2+ food wastes thermophilic anaerobic fermentation VFA |
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