复合流人工浮岛系统植物与基质在污染水体修复中的作用

作为原位生态修复方法的一种,人工浮岛具有构建简单、操作管理方便、投资及运行费用低等优点,但较低的氮磷净化效率限制了其应用。由此,复合流人工浮岛作为一种新型的浮岛形式而发展起来。针对复合流人工浮岛的结构特征,综合论述了植物、基质及其他影响因素在复合流人工浮岛中的作用。在植物影响因素方面,主要论述了植物根系分泌物及微生物量、植物生长状态、泌氧能力、对氮磷富集能力及植物覆盖率的影响;在基质的作用方面,主要概括了基质的粒径、孔隙率、渗透系数和基质成分等物理化学参数及过水能力的影响。此外,对可能影响系统运行的水力梯度、温度及进水负荷等因素也进行了介绍。

The Roles of Plants and Substrate in the Multi-Flow Artificial Floating Island for Surface Water Remediation

As an in-situ ecological remediation technology,the artificial floating island(AF) with low constructing and operating cost is constructed simply and operated easily.However,the low removal efficiency for nitrogen and phosphorus is a great disadvantage for it to get a wide application.So multi-flow AFI which is a new article floating island was developed.In the aspect of plant effects,root secretion, microbial biomass,growth state,ability of radial oxygen loss,accumulation ability of nitrogen and phosphorus...