文档介绍：Effect of Property Changes of Iron Nanoparticles on
Final Product Distribution in an Autotrophic
Denitrification System from Groundwater
Yi An, Tielong Li, Zhaohui Jin*, Meiying Dong, Qianqian Li
College of Environmental Science and Engineering/ Tianjin Key Laboratory of Environmental Remediation and Pollution
Control/ Ministry of Education Key Laboratory of Pollution Processed and Environmental Criteria
Nankai University
Tianjin 300071, China
******@nankai.
Abstract soluble microbial products after the process of biological
denitrification still required secondary treatment prior to water
The iron particles extracted from biological and abiotic reactors
use, especially when heterotrophic bacteria are used [8].
were used to be characterized pared with each other.
Alternatively, autotrophic denitrification using hydrogen as an
TEM, SEM, XRD and XPS were utilized to observe and quantify
electron donor can remove nitrate more cleanly, with minimal
the particle morphology and oxidized iron precipitates. Unlike
biomass clogging effects as a result of decreased cell
the Fe O and Fe O coating of nanoscale zero-valent iron
3 4 2 3 generation [9-11]. The main challenge of adopting the
(NZVI) particles in the abiotic reactors, the ponent of
hydrogenotrophic denitrification process for engineered
the coating of the activated part