Effect of Fly Ash to Status on Cu,Zn,Pb During Composting of Sewage Sludge

ZENG Zheng-zhong; ZHANG He-fei; PAN Yu; WANG Zhi-bo; NAN Zhong-ren

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Effect of Fly Ash to Status on Cu,Zn,Pb During Composting of Sewage Sludge

更新时间：2024-11-07

- Effect of Fly Ash to Status on Cu,Zn,Pb During Composting of Sewage Sludge
- Vol. 25, Issue 5, (2011)
- 作者机构：
  
  兰州大学资源环境学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZENG Zheng-zhong, ZHANG He-fei, PAN Yu, et al. Effect of Fly Ash to Status on Cu,Zn,Pb During Composting of Sewage Sludge[J]. 2011, 25(5).
DOI：

ZENG Zheng-zhong, ZHANG He-fei, PAN Yu, et al. Effect of Fly Ash to Status on Cu,Zn,Pb During Composting of Sewage Sludge[J]. 2011, 25(5). DOI：

摘要

污泥中重金属的危害是影响污泥土地利用的重要因素;污泥重金属危害不仅取决于总量

其形态分布更能反映重金属的迁移性以及生物有效性。实验以木屑为调节剂

粉煤灰作为钝化剂

研究污泥堆肥前后重金属Cu、Zn与Pb的形态分布变化。结果表明

堆肥对Cu有活化作用

而添加粉煤灰堆肥化能有效抑制这种活化

起到钝化作用

堆肥化使Pb向更稳定形态转化

添加粉煤灰堆肥化对Zn的钝化效果较好

当粉煤灰添加量为35%时

对Cu、Zn、Pb 3种重金属的易迁移态均具明显的钝化效果。

Abstract

The hazard of heavy metals in sewage sludge is one of the most important factors that influences land use;the hazard of heavy metals not only depends on the amount but also on the speciation

which could react on the migration and the bioavailability of heavy metals.The experiment studied the speciation of heavy metals(Cu

Zn and Pb) after composting of sewage sludge including sawdust as regulator and fly ash as a passive agent.The results showed that composting could make Cu more active but adding fly ash co...

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