| 污泥土地利用对环境的影响 |
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| 引用本文： | 张增强,殷宪强.污泥土地利用对环境的影响[J].农业环境科学学报,2004,23(6):1182-1187. |
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| 作者姓名： | 张增强 殷宪强 |
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| 作者单位： | 1. 西北农林科技大学生命科学学院,陕西,杨凌,712100
2. 西北农林科技大学资源环境学院杨凌示范区,陕西,杨凌,712100 |
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| 摘 要： | 污泥中含有丰富的有机质及氮、磷等养分，土地利用是污泥处理的重要途径之一。由于污泥的含水率很高，易腐烂发臭，且含有病原菌、重金属及毒性有机物等，在土地利用之前进行稳定化处理是必要的。在污泥的稳定化处理方法中以堆肥化处理较符合我国国情。污泥的土地利用对土壤物理、化学及生物学性质有明显的改良作用，可促进植物生长，提高产量及品质。同时，由于污泥中的重金属及丰富的氮素，使用不当，可导致重金属在土壤与植物中的积累，过量的硝态氮可能污染地表与地下水。
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| 关 键 词： | 污泥 土地利用 植物生长响应 环境影响 |
| 文章编号： | 1672-2043(2004)06-1182-06 |
| 修稿时间： | 2004年9月24日 |
Environmental Effects of Sludge Application on Land |
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| ZHANG Zeng qiang,YIN Xian qiang.Environmental Effects of Sludge Application on Land[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2004,23(6):1182-1187. |
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| Authors: | ZHANG Zeng qiang YIN Xian qiang |
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| Institution: | ZHANG Zeng qiang1,YIN Xian qiang2 |
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| Abstract: | There are lots of soil nutrients such as organic matters, nitrogen and phosphorus in sludge, therefore, application of sludge on land is one of the most important ways for sludge treatment. Because sludge always contains high percentage of water, it is easily putrefied and is often odiferous, and it may also contain lots of pathogens, heavy metals as well as toxic organic matters, therefore, it is necessary for sludge to be stabilized before it is applied on land. For different treatment methods of sludge stabilization, the composting method is accordance with our country's conditions. Sludge and its compost application on land can improve soil physical, chemical as well as biological properties apparently, it also can promote the plants growth, raise the grain output, as well as improve the quality of the products. Meanwhile, as it contents heavy metals and abundant nitrogen, if sludge is ill- treated and utilized unreasonably, it can lead to heavy metals accumulation in the soils and plants, and excessive nitrate nitrogen may pollute surface water and ground water. |
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| Keywords: | sludge land application plant growth response environmental effect |
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