Taking a smeltery in Shenyang,Liaoning Province as research object,several alkali chemicals were added to increase the soil pH and reduce leaching toxicity of arsenic in soil impacted by heavy metals.

• 文章以沈阳某冶炼厂厂区旧址的重金属复合污染土壤为研究对象,通过向土壤中添加不同药剂,研究了不同碱性化学物质对土壤砷稳定化的效果。