The carbon source is essential as an electron donor in the heterotrophic denitrification
process. When there is a lack of organic carbon sources in the system, an external carbon …

Abstract Nitrate (NO 3−) pollution in water and wastewater has become a serious global
issue. Biological denitrification, which reduces NO 3− to N 2 (nitrogen gas) by denitrifying …

Constructed wetlands (CWs) have been proven as a reliable alternative to traditional
wastewater treatment technologies. Microorganisms in CWs, as an important component …

Nitrate, as the most stable form of nitrogen pollution, widely exists in aquatic environment,
which has great potential threat to ecological environment and human health. Heterotrophic …

Groundwater, as the most important drinking water source in arid regions of China, has been
polluted seriously by accumulated nitrate and heavy metals. An economic alternative with …

The contaminant of herbicide clopyralid (3, 6-dichloro-2-pyridine-carboxylic acid, CLP)
poses a potential threat to the ecological system. However, there is a general lack of …

Lead (Pb) accumulation can lead to serious threats to surrounding environments and
damage to the liver and kidneys. In the past few years, microbial-induced carbonate …

Denitrifying phosphorus removal (DPR) is a novel technology for removing phosphorus and
nitrogen with low energy requirements. Still, the metagenomic analysis comparing the effect …

Abstract Sponge iron (s-Fe 0) is a potential alternative electron donor for nitrate reduction.
To gain insight into the mechanism of denitrification in a constructed wetland-sponge iron …

Substrate clogging is regarded as one of the main influencing factors on the sustainable
operation in subsurface flow constructed wetlands (SSFCWs). The accumulation of …