| 针铁矿和菱苦土强化养殖粪污厌氧发酵液中氮、磷固定的研究 |
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| 引用本文： | 周跃飞,归显扬,陈天虎,姚敦璠,何光亚,张楠,黎少杰.针铁矿和菱苦土强化养殖粪污厌氧发酵液中氮、磷固定的研究[J].矿物学报,2011,31(4):726-731. |
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| 作者姓名： | 周跃飞 归显扬 陈天虎 姚敦璠 何光亚 张楠 黎少杰 |
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| 作者单位： | 合肥工业大学资源与环境工程学院,安徽合肥,230009 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目(编号:2007CB8156032011CB411904); 国家自然科学基金(批准号:40802015) |
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| 摘 要： | 对比研究了养殖粪污厌氧发酵体系中添加针铁矿和/或菱苦土对N、P固定的作用。实验过程中对溶液pH进行监控,厌氧发酵44 d后,对发酵液中氨氮和磷浓度进行了分析,对固体产物进行了XRD和SEM分析。结果表明：单独或同时添加针铁矿、菱苦土的厌氧发酵罐中,发酵液中N、P浓度均降低,其中N浓度降幅小于P,添加菱苦土厌氧发酵罐中P浓度降幅较大,达90%以上。单独添加针铁矿的厌氧发酵罐中,针铁矿发生还原分解,转化为铁白云石;添加菱苦土的厌氧发酵罐中,形成了大量鸟粪石。研究认为在养殖粪污厌氧发酵体系中,由于碱金属离子的影响,针铁矿和菱苦土对N的固定作用不明显;针铁矿对P的固定效果一般,菱苦土对P固定效果显著,固P产物鸟粪石可作为优质缓释肥使用。
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| 关 键 词： | 养殖粪污 厌氧发酵 针铁矿 菱苦土 鸟粪石 |
Goethite and Magnesia Enhanced Consolidations of N and P in Anaerobic Fermentation Wastewater of Manure |
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| ZHOU Yue-fei,GUI Xian-yang,CHEN Tian-hu,YAO Dun-fan,HE Guang-ya,ZHANG Nan,LI Shao-jie.Goethite and Magnesia Enhanced Consolidations of N and P in Anaerobic Fermentation Wastewater of Manure[J].Acta Mineralogica Sinica,2011,31(4):726-731. |
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| Authors: | ZHOU Yue-fei GUI Xian-yang CHEN Tian-hu YAO Dun-fan HE Guang-ya ZHANG Nan LI Shao-jie |
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| Institution: | ZHOU Yue-fei,GUI Xian-yang,CHEN Tian-hu,YAO Dun-fan,HE Guang-ya,ZHANG Nan,LI Shao-jie(School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | This study investigated the transformations of goethite and magnesia in anaerobic fermentation systems of manure and their effects on the consolidations of N and P.Four fermentation experiments,with no mineral,only goethie,only magnesia and both goethite and magnesia added were executed for 44 days.During the experimental period,pH variations were monitored constantly.After the experiments,the concentrations of N and P in the solutions and characteristics of residual solids were determined.The results showe... |
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| Keywords: | livestock manure anaerobic fermentation goethite magnesia struvite |
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