摘要
研究了奶牛粪便堆肥过程中形成的腐殖质与Fe2+的络合特征。结果表明,堆肥过程中形成的腐殖质与Fe2+的络合能力呈现一种动态变化。腐殖质与Fe2+的络合稳定常数受到腐殖质腐殖化程度,所处环境的离子强度、pH值的影响。此外,腐殖质络合Fe2+的能力还与腐殖质中羧基的含量成正相关。对以奶牛粪便为主的农业有机固体废弃物进行堆肥化处理,有助于其中的腐殖质与Fe2+的络合。
The complexation characteristics of humic matter, which was extracted from cow dung composting, with Fe^2＋ were studied. The results showed that the value of complexation stability constant changed with the composting process and it was affected by the factors such as humification degree of humus, pH and ion strength in the environment. At the same time, complexation stability of humic acids with Fe^2＋ was positively related to the content of hydroxyl in humic matter. Composing agricultural organic solid waste is helpful for humic matter to form complex with Fe^2＋.
出处
《河南农业科学》
CSCD
北大核心
2006年第10期78-80,共3页
Journal of Henan Agricultural Sciences
基金
南京农业大学2005年学校资助SRT项目(0506A05)
