摘要
通过对稳定化处理、淋洗处理与生物修复处理后的砷污染土壤开展试验研究,探索不同修复措施对土壤砷总量、砷形态及分布、土壤有机质含量、土壤呼吸强度、土壤水稳性团聚体含量、土壤CEC、土壤速效氮含量、土壤速效钾含量与土壤速效磷含量的影响。结果表明:稳定化处理并未显著降低土壤中总砷含量,淋洗处理与生物修复处理可显著降低土壤总砷含量。稳定化处理与淋洗处理使得土壤呼吸强度、土壤水稳性团聚体含量、土壤CEC、土壤速效氮含量、土壤速效钾含量与土壤速效磷含量显著降低,生物修复使得土壤呼吸强度、土壤水稳性团聚体含量、土壤CEC、土壤速效氮含量、土壤速效钾含量与土壤速效磷含量显著升高。
In this paper, stabilization, leaching and bioremediation treatments were carried out on the arsenic-contaminated soil to explore the soil arsenic content, arsenic morphology and distribution, soil organic matter content, soil respiration intensity, soil water stability agglomeration, soil CEC, soil available nitrogen, potassium and phosphorus contents. The results showed that the stabilization treatment did not significantly reduce the total arsenic content in the soil, and the leaching and bioremediation significantly reduced the total arsenic content in the soil. Stabilization treatment and leaching resulted in significant reduction of soil respiration intensity, soil water-stable aggregate content, soil CEC, soil available nitrogen potassium and phosphorus contents. Bioremediation made soil respiration intensity, soil water stability, agglomerate content, soil CEC, and soil available nitrogen, potassium and phosphorus increased significantly.
作者
卜庆国
李朝晖
张姣
熊燕娜
BU Qing-guo;LI Zhao-hui;ZHANG Jiao;XIONG Yan-na(CECEP Environmental Proection Equipment Co., Ltd. Beijing 100082, PRC;Louis Engineering Co., Ltd. Beijing 100082, PRC;Solid Waste and Chemicals Management Technology Center, Ministry of Environmental Protection, Beijing 100029, PRC)
出处
《湖南农业科学》
2019年第3期40-43,共4页
Hunan Agricultural Sciences
关键词
砷污染
土壤
形态分布
土壤理化性质
arsenic pollution
soil
morphological distribution
soil physical and chemical properties