| 低铵污水灌溉下土壤中硝化作用试验研究 |
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| 引用本文： | 吴俊锋,王燕枫,李勇.低铵污水灌溉下土壤中硝化作用试验研究[J].江苏环境科技,2003,16(2):4-5. |
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| 作者姓名： | 吴俊锋 王燕枫 李勇 |
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| 作者单位： | 1. 江苏省环境科学研究院,南京,210036
2. 河海大学环境科学与工程学院,南京,210098 |
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| 摘 要： | 为模拟含低浓度铵的污水灌溉条件下土壤中硝化作用，采用了铵盐溶液(50mg/LNH4Cl)连续淋沥土壤，进行了垂向土柱试验研究，测定了土柱不同深度氮化合物的浓度。结果表明：低铵浓度污水灌溉下土壤溶液中的硝化作用主要是在30cm内发生的，NO3—N的浓度在30cm左右达到峰值。随后由于脱氮等作用，浓度迅速下降，在100cm处减小到10mg/L左右，在40cm以下土壤中未测出NH4—N。
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| 关 键 词： | 低浓度铵 污水灌溉 土壤 硝化作用 垂向土柱试验 氮化合物 |
| 修稿时间： | 2003年3月10日 |
Experimental study of Nifration Function in Soil Under Low Ammonium Wastewater Irrigation |
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| Wu Jungfeng Wang Yanfeng Li Yong.Experimental study of Nifration Function in Soil Under Low Ammonium Wastewater Irrigation[J].Jiangsu Environmental Science and Technology,2003,16(2):4-5. |
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| Authors: | Wu Jungfeng Wang Yanfeng Li Yong |
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| Institution: | Wu Jungfeng Wang Yanfeng Li Yong |
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| Abstract: | For modeling of nitration function in soil under low ammouium concentration wastewater irrigation condition, ammonium salt solution (50mg/L NH 4Cl) is employed in continuous drenching soil,while vertical soil pole experimental study is carried out, and the concentrations of N compound at different soil pole depth are determined. Results indicate that nitration function in soil solution under low ammonium concentration wastewater irrigation is happened chiefly within 30cm with peak value of NO 3-N concentration around 30cm.Soon afterwards due to denitrification etc,concentration reduces rapidly with reduction to about 10mg/L af 100cm depth and no NH 4-N is determined under soil of 40cm. |
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| Keywords: | Low concentration ammonium wastewater irrigation Soil Nitration function |
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