摘要
燃煤烟气脱硫副产物是工业发电的燃煤脱硫过程产生的一种固体废弃物,本文研究了它的农业利用价值,并进行了酸性土壤上施用的肥效试验和作物的重金属含量检测。结果显示:燃煤烟气脱硫副产物富含南方酸性土壤中普遍缺乏的Ca、S、Si、B、Mo等元素,具极好的农业利用价值;在3种不同类型的赤红壤上,供试作物适量施用脱硫副产物均可获得不同程度的增产和提高品质的效果,若与活化剂配合施用效果更佳;并能有效改善土壤的理化性能;供试物中的重金属含量均没有超过国家的限量标准,故适量施用后,当造作物植株中检出的重金属含量均低于国家限量标准。
The desulphurised byproducts is a solid castoff procreant process of burn coal desulfurize. In order to apply the desulphurised byproducts as a resource,the agriculture use was studied in this paper. The pot expcrimert was condncted on acid soils and the heavy metal concentration of crop was examined. (1) The desulphurised products are rich in Ca,S,B,Si,Mo e t c.,Which are insufficing generally in red soils. (2) Applying the desulphurised products properly to red soil derived from different parent material was effective in promoting the growth and improving the quality of crop. The physical and chemical properties of soil were also effectively improved. (3) The content of heavy metal such as Pb, Cd, Cr, As, Se, Ni, Cu e t c. in desulphurised products was below the national limit, thus if applying the desulphurised products properly to the soil , the content of heavy metals in the first season crop was below the limit for nuisanceless food.
出处
《土壤通报》
CAS
CSCD
北大核心
2004年第4期441-448,共8页
Chinese Journal of Soil Science
基金
清华大学重点基础研究(985校-06-基础-6)
广东省环保局科技研究项目(2001-09)资助
