施用城市污泥堆肥对土壤中Cu<sup>2+</sup>吸附行为的影响

杨艳琴; 魏明宝; 马闯; 张宏忠

doi:10.3969/j.issn.2096-1553.2016.5.004

September 2016

Article Contents

YANG Yan-qin, WEI Ming-bao, MA Chuang and et al. Effects of municipal sludge composts on Cu2+ adsorption in soil[J]. Journal of Light Industry, 2016, 31(5): 20-24. doi: 10.3969/j.issn.2096-1553.2016.5.004

Citation: YANG Yan-qin, WEI Ming-bao, MA Chuang and et al. Effects of municipal sludge composts on Cu2+ adsorption in soil[J]. Journal of Light Industry, 2016, 31(5): 20-24. doi: 10.3969/j.issn.2096-1553.2016.5.004 shu

Effects of municipal sludge composts on Cu²⁺ adsorption in soil

YANG Yan-qin ^1,2 ,
WEI Ming-bao ^1,2 ,
MA Chuang ^1,2 ,
ZHANG Hong-zhong ^1,2,,

Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration He'nan Province, Zhengzhou 450001, China;
College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China

Corresponding author: ZHANG Hong-zhong,
Received Date: 2016-05-13
Available Online: 2016-09-15

Abstract

In order to understand the accumulation rules of heavy metals in soil, the effects of municipal sludge composts on the content of heavy metals,adsorption capacity of copper and the content of nutriment in soil were studied.The results showed that the content of metal heavy metals in soil had little difference before and after adding municipal sludge composts.The adsorption isotherms of copper in the samplesagree well with the Langmuir equation with all correlation coefficients of above 0.9. Furthermore the application amount of municipal sludge composts should be controlled under 2 000 kg/mu. The addition of municipal sludge composts under 2 000 kg/mu could not only reduce the adsorption capacity of copper, but also increase the content of nutriment in soil.
- municipal sludge,
- composts,
- soil,
- heavy metals accumulation,
- adsorption capacity
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