| 摘要 |
A hardening agent for soil improvement and a pulp sludge based soil improvement agent are provided. The hardening agent includes cobalt chloride, ammonium chloride, sodium chloride, potassium carbonate, sodium carbonate, and water. The soil improvement agent includes the hardening agent, pulp sludge, an anti-aggregating agent, and water. Pulp sludge can be recycled as a high-value soil improvement agent along with the hardening agent so that environmental concerns associated with pulp sludge can be eliminated with added economical value. The soil improvement agent is effective in changing acidified soil into weak alkali soil, thereby resulting in high-fertility organic substance rich soils with enhanced productivity. |
