用若干固体废弃物改良土壤的可行性研究

合理利用粉煤灰、水库淤积物和污泥三种废弃物对保护环境有重要意义。选择干旱半干旱地区 ,联合施用上述三种废物进行土壤改良 ,兼有建设生态环境的作用。盆栽试验结果表明 :粉煤灰、水库淤积物、污泥按适当比例配合施用 ,对改良贫瘠土壤、促进植物生长有明显效果。

FEASIBLE RESEARCH ON SOIL IMPROVEMENT WITH SOLID WASTES

It was harmful to store largely coal ash, reservoir sediments and sewage sludges in the environment. How to make use of these wastes reasonably is a significant and urgent subject. The present study reveals that there are many little-hollow glass balls and some carbon particles with holes in coal ash, and that large quantities of nutrition elements exist in sewage sludges and reservoir sediments. The wastes mentioned above, therefore, are able to improve the structure and compensate nutrition of soil effectively while they are added into farmland. The results of potted planting showed that the three kinds of wastes mixed in proper proportions could greatly promote plant growing and increase production obviously. ;