| 植物多酚吸持硫酸铁沉淀法去除猪场粪污废水中氨氮的研究 |
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| 引用本文： | 余雅琳,高菲,杨德坤,李琦,孙露露,梁剑茹,周立祥.植物多酚吸持硫酸铁沉淀法去除猪场粪污废水中氨氮的研究[J].农业环境科学学报,2017,36(11):2343-2348. |
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| 作者姓名： | 余雅琳 高菲 杨德坤 李琦 孙露露 梁剑茹 周立祥 |
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| 作者单位： | 南京农业大学资源与环境科学学院,南京,210095 |
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| 基金项目： | 国家自然科学基金项目（21477054） |
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| 摘 要： | 以天然植物多酚(单宁)为吸持剂,以硫酸铁为沉淀剂,研究了废水pH、初始氨氮浓度、温度、吸附剂投加量等因素对吸持沉淀法去除氨氮的影响。研究结果表明:供试材料的最大吸附量达到13.8 mg·g~(-1),是人造沸石吸附量的2.4倍;在研究设定的投加量范围内,随着投加量的增加,氨氮去除率持续上升,达到16.3%;在试验条件下,供试材料对猪场废水的吸附量达到19.3 mg·g~(-1),是人造沸石的3.3倍,略优于阳离子交换树脂。植物多酚(单宁)吸持硫酸铁沉淀法有望作为一种新方法用于含氨氮废水的快速处理。
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| 关 键 词： | 植物多酚 单宁 猪场粪污废水 氨氮 吸持 去除 |
| 收稿时间： | 2017/5/3 0:00:00 |
Removal of ammonium nitrogen from piggery wastewater by complexation with natural plant polyphenols |
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| YU Ya-lin,GAO Fei,YANG De-kun,LI Qi,SUN Lu-lu,LIANG Jian-ru and ZHOU Li-xiang.Removal of ammonium nitrogen from piggery wastewater by complexation with natural plant polyphenols[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2017,36(11):2343-2348. |
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| Authors: | YU Ya-lin GAO Fei YANG De-kun LI Qi SUN Lu-lu LIANG Jian-ru and ZHOU Li-xiang |
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| Institution: | College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China,College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China and College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China |
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| Abstract: | Adsorption is a proven means of efficiently removing ammonia nitrogen(NH4+-N) from wastewater, and natural plant polyphenols are reported as excellent biosorbents for the removal of NH4+-N. In the present study, a soluble natural plant polyphenol, tannin, was added into NH4+-N-containing wastewater to form a complex compound of plant polyphenol-ammonia, and then this complex compound was precipitated by a precipitant ferric sulfate. Natural plant polyphenol exhibited high adsorption capacity for NH4+ in piggery wastewater. The effects of pH, initial concentration of NH4+-N, temperature, and adsorbent dosage on the adsorption of NH4+-N were investigated. Results showed that complexation capacity of NH4+-N onto the tested natural plant polyphenol were 13.8 mg·g-1 in 3 hours, 2.4 times higher than that of zeolite. The efficiency of NH4+-N removal was increased to 16.3% with an increase in the concentration of natural plant polyphenols. Under the optimum conditions, the adsorption capacity of natural plant polyphenol for NH4+-N in piggery wastewater was 19.3 mg·g-1 which was 3.3 times higher than that of zeolite and slightly better than that of cation exchange resin. Therefore, the natural plant polyphenols possess a high adsorption capacity for NH4+-N and can be easily precipitated by ferric sulfate, which is potentially a novel approach to remove NH4+-N from wastewater. |
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| Keywords: | plant polyphenol tannin piggery wastewater ammonia complexation removal |
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