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摘要: |
构建了粉煤灰+石灰石混合基质床人工湿地处理养殖废水,并与石灰石单一基质床相比较,结果表明,粉煤灰是一种磷吸附能力很强的基质,在人工湿地中填充粉煤灰和石灰石组成的混合基质可以明显提高磷去除效率,而且粉煤灰还可以作为碱源供应碱而有利于氮的去除;磷素在人工湿地中的主要去除… |
关键词: 混合基质 人工湿地 脱氮除磷 |
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Study of the Effect of Substrata on Removing Nitrogen and Phosphorus in Constructed Wetland |
WANG Xiao-xue,LI Jie,ZHONG Cheng-hua,LIU Jie,XIA Xiao-fang
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Abstract: |
Constructed wetland treatment of wastwater is conducted by mixed substrata bed of fuel ash plus limestone and its effect is compared with simple substratum bed of limestone.The results show that fuel ash is a strong matrix for absorbing phosphorus… |
Key words: mixed substrata constructed wetland removal of nitrogen and phosphorus |