A5005338582- Groundwater flow and contamination studies
- Fecal contamination and water quality
- Viral gastroenteritis research and epidemiology
- Soil and Unsaturated Flow
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide and Herbicide Environmental Studies
- Groundwater and Isotope Geochemistry
- Parasitic Infections and Diagnostics
- Chronic Myeloid Leukemia Treatments
- Water Treatment and Disinfection
- Bacteriophages and microbial interactions
- Urban Stormwater Management Solutions
- Legionella and Acanthamoeba research
- Chronic Lymphocytic Leukemia Research
- Environmental DNA in Biodiversity Studies
- Landfill Environmental Impact Studies
- Child Nutrition and Water Access
- Bacterial biofilms and quorum sensing
- Soil and Water Nutrient Dynamics
- SARS-CoV-2 detection and testing
- Mine drainage and remediation techniques
- Reservoir Engineering and Simulation Methods
- Environmental remediation with nanomaterials
- Amoebic Infections and Treatments
- Biosensors and Analytical Detection
Tianjin Normal University
2025
State Grid Corporation of China (China)
2025
Institute of Environmental Science and Research
2014-2024
Peking University Shenzhen Hospital
2009-2024
Crown Research Institutes
1999
Strongly sorbing chemicals (e.g., heavy metals, radionuclides, pharmaceuticals, and explosives) in porous media are associated predominantly with the solid phase, which is commonly assumed to be stationary. However, recent field‐ laboratory‐scale observations have shown that presence of mobile colloidal particles microbes, humic substances, clays, metal oxides), colloids can act as pollutant carriers thus provide a rapid transport pathway for strongly contaminants. To address this problem,...
Chitosan nanoparticles (CNPs) are known to have great utility in many fields (pharmaceutical, agricultural, food industry, wastewater treatment, etc.). In this study we aimed synthesize sub-100 nm CNPs as a precursor of new biopolymer-based virus surrogates for water applications. We present simple yet efficient synthesis procedure obtaining high yield, monodisperse with size 68-77 nm. The were synthesized by ionic gelation using low molecular weight chitosan (deacetylation 75-85%) and...
Information about the microbial removal efficiencies of subsurface media is essential for assessing risk water contamination, estimating setback distances between disposal fields and receiving waters, selecting suitable sites wastewater reclamation. By analyzing published data from field experiments large intact soil cores, an extensive database rates was established a wide range media. High were found in volcanic soils, pumice sand, fine highly weathered aquifer rocks. Low structured clayey...
Abstract Efficient removal of 99 TcO 4 − from radioactive effluents while recovering drinking water remains a challenge. Herein, an excellent ReO (a nonradioactive surrogate ) scavenger is presented through covalently bonding imidazolium poly(ionic liquids) polymers with ionic porous aromatic framework (iPAF), namely iPAF‐P67, following adsorption‐site density‐addition strategy. It shows rapid sorption kinetics, high uptake capacity, and exceptional selectivity toward . Notably, the residual...
Abstract A field study was conducted to characterize the transport of rhodamine WT dye and endospores bacterium Bacillus subtilis through preferential flowpaths in an alluvial gravel aquifer using natural gradient tracer experiments. Preliminary experiments were with determine a resin bag method, because spatial heterogeneity at site. Rhodamine WT, Cl, B. then injected 0.1 1.6 m below water table, downgradient ground monitored. behaved like Cl used as nonreactive this study. The method time...
The HYDRUS‐1D mobile–immobile water model (MIM) was used to evaluate the transport of fecal coliforms, Salmonella bacteriophage, and Br in 10 soils. At a flux 5 mm h −1 , pulse dairy shed effluent applied 30 large undisturbed lysimeters, followed by irrigation. Soil types included clayey gley soil, clay loam, silt loam over gravels, fine sandy dune sand pumice allophanic soil. Except for sand, modeling results showed lower mobile contents dispersivities microbes than Br, indicating exclusion...
Contamination of groundwater by pathogenic viruses from small biological wastewater treatment system discharges in remote areas is a major concern. To protect drinking water wells against virus contamination, safe setback distances are required between disposal fields and supply wells. In this study, calculated for alluvial sand gravel aquifers different vadose zone aquifer thicknesses horizontal gradients. This study applies to individual households settlements (1-20 persons) decentralized...
Abstract The relative attenuation of rhodamine WT dye, two strains Escherichia coli, Bacillus subtilis endospores, and the F‐RNA bacteriophage MS2 in an alluvial gravel aquifer was investigated tracing experiments at Burnham, near Christchurch, New Zealand. A simulated concentration curve fitted to observed breakthrough curves using contaminant transport model AT123D, by optimising hydraulic conductivity (K), longitudinal dispersivity (αx), a removal constant (λ) (which includes die‐off...