| 电厂粉煤灰作为碱化土壤改良剂的风险分析 |
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| 引用本文： | 梁师英,赵锦慧,李海燕.电厂粉煤灰作为碱化土壤改良剂的风险分析[J].安徽农业科学,2009,37(34):16945-16947. |
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| 作者姓名： | 梁师英 赵锦慧 李海燕 |
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| 作者单位： | 湖北大学资源环境学院,湖北武汉,430062 |
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| 基金项目： | 国家科技部农村黑臭水体资源化治理技术研究与应用，湖北省自然科学基金立项项目，湖北大学教学改革项目 |
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| 摘 要： | ［目的］为粉煤灰在碱化土壤改良中的合理应用提供指导。［方法］采用已知化学元素的粉煤灰改良已知化学成分的碱化土壤，研究灌水量、改良深度、电厂废渣与土壤处理方式等对土壤改良效果的影响。［结果］粉煤灰可改善碱化土壤的物理性质，降低其碱化度，增强土壤的吸热能力，提高地温，有利于微生物活动、养分转化和种子萌发；粘质土壤中施入粉煤灰后，土壤粘粒含量降低，沙粒含量增加；粉煤灰的施用带来了一定程度的重金属污染（Se含量偏高等），破坏了植物根系对营养成分的吸收，通过添加有机质和复合肥等措施可防止其不利影响。［结论］采取合理措施可减少粉煤灰对土壤的不利影响。
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| 关 键 词： | 粉煤灰 碱化土壤 重金属污染 |
Risk Evaluation of Coal Ash from Power Plant Used As Alkaline Soil Amendment |
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| LIANG Shi-ying et al.Risk Evaluation of Coal Ash from Power Plant Used As Alkaline Soil Amendment[J].Journal of Anhui Agricultural Sciences,2009,37(34):16945-16947. |
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| Authors: | LIANG Shi-ying |
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| Institution: | LIANG Shi-ying et al(Resource , Environmental College of Hubei University,Wuhan,Hubei 430062) |
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| Abstract: | Objective] The study was to provide the guidance for reasonable application of coal ash in alkaline soil improvement.Method] The alkaline soil which chemical constituents were known was improved by coal ash which chemical elements were known,the effects of irrigation amount,improvement depth and treatment methods of waste residue from power plant and soil on improvement effect of soil were studied.Result] Coal ash could improve the physical properties of alkaline soil and decrease its alkalinity,and incr... |
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| Keywords: | Coal ash Alkaline soil Heavy metal pollution |
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