消化污泥中重金属的生物有效性研究

Study on the Bioavailability of Heavy Metals in Digested Sludge

对城市污水处理厂消化污泥中重金属的形态分布进行了分析 ,并对污泥农业利用后重金属对作物的生物有效性进行了研究、试验 .结果表明 ,消化污泥中的重金属大部分以稳定态存在 ,植物可吸收量极少 .

The form and distribution of heavy metals in digested sludge from sewage treatment plants and the effects of these heavy metals in sludge on crops were tested and analyzed. The results showed that the eight heavy metals in the sludge are mostly stable and are hardly absorbed by plants.