Hu, Xinyu Zeng, Chunlin Hou, Zhaozhi Wang, Yuan Xu, Qin Isobe, Kazuo Senoo, Keishi Zhu, Lin
Published in
Annals of Microbiology
PurposeAs a potential tool for the biodegradation of nitrogen contaminants, including nitrate, nitrite, and ammonium, in pickled foods with high salinity, the halophilic and denitrifying archaeal strain Halomicrobium sp. ZPS1 was isolated from edible salt particles.MethodsUnder anaerobic and static culture conditions, Halomicrobium sp. ZPS1 could s...
Dahiru, Muntaka Abu Bakar, Nor Kartini Yus off, Ismail Low, Kah Hin Mohd, Muhammad N.
Published in
Environmental Monitoring and Assessment
In an effort to determine the reason behind excellent nitrate remediation capacity at Kelantan region, a multivariate approach is employed to evaluate extent to which the influence of sea on soil geochemical composition affect variation pattern of groundwater quality. The results obtained from geochemical analysis of paleo-beach soil in coastal sit...
Hunter, Brandon Deshusses, Marc A.
Published in
The Science of the Total Environment
• Low-cost filters were investigated for the treatment of fecal waste digestate. • 84% of the COD was removed in the GAC medium trickling filter. • 69% of total N was removed in the biochar medium trickling filter. • 89% PO4-P was removed across the system. • Ammonium magnesium phosphate hydrate was precipitated in the denitrification filter.
Guo, Wenrui Wen, Yue Chen, Yi Zhou, Qi
Published in
Frontiers of Environmental Science & Engineering
A constructed wetland microcosm was employed to investigate the sulfur cycle-mediated electron transfer between carbon and nitrate. Sulfate accepted electrons from organics at the average rate of 0.84 mol/(m3·d) through sulfate reduction, which accounted for 20.0% of the electron input rate. The remainder of the electrons derived from organics were...
Dolan, Stephen K Kohlstedt, Michael Trigg, Stephen Vallejo Ramirez, Pedro Kaminski, Clemens F Wittmann, Christoph Welch, Martin
Pseudomonas aeruginosa is an opportunistic human pathogen, particularly noted for causing infections in the lungs of people with cystic fibrosis (CF). Previous studies have shown that the gene expression profile of P. aeruginosa appears to converge toward a common metabolic program as the organism adapts to the CF airway environment. However, we st...
Dai, Weiwei Bai, Edith Li, Wei Jiang, Ping Dai, Guanhua Zheng, Xingbo
Published in
Soil Ecology Letters
Soil-emitted N2O contributes to two-thirds of global N2O emissions, and is sensitive to global change. We used DayCent model to simulate major plant–soil N cycling processes under different global change scenarios in a typical temperate mixed forest in north-eastern China. Simulated scenarios included warming (T), elevated atmospheric CO2 concentra...
Hu, Yuming Jin, Zanfang Hu, Qiyue Hu, Jing Ni, Chenhao Li, Feili
Published in
The Science of the total environment
Constructed wetlands are effective at removing nitrate, one of the major pollutants in aquatic ecosystems. In this study, nitrogen and oxygen isotopes (δ15N and δ18O) were used to determine the sources and transformations of nitrate (NO3-), evaluate isotopic fractionation, and estimate nitrogen (N) removal in the Xixi Wetland, a large semi-construc...
Pan, Weiyan Huang, Quanzhong Xu, Zhenghe Pang, Guibin
Published in
Journal of contaminant hydrology
The nitrogen dynamics in a subsurface infiltration system (SIS) are affected by many factors, including temperature, system design, and feed water quality, which are not easily quantified. In this study, a column experiment was conducted to simulate an SIS. The HYDRUS-1D software package was used to investigate and quantify the factors that affect ...
Hinshaw, Sarra E Zhang, Taiping Harrison, John A Dahlgren, Randy A
The San Joaquin River (SJR) in California is purported to receive high nitrate loadings from surrounding agricultural lands through both surface and groundwater inputs. To investigate the potential removal of nitrate (NO3-) from surface and ground water sources, the spatial variations in dinitrogen (N2) gas concentrations and direct measurements of...
Billen, Gilles Garnier, Josette Grossel, Agnès Thieu, Vincent Théry, Sylvain Hénault, Catherine
The frequently observed discrepancy between estimations of N 2 O emissions at regional or global scale based either on field data or inventories (bottom-up) or on direct atmospheric observations (top-down) suggests that riparian areas and river surfaces play a significant role as hot spots of emission. We developed a modeling procedure to assess N ...
