A5103064645- Constructed Wetlands for Wastewater Treatment
- Wastewater Treatment and Nitrogen Removal
- Urban Stormwater Management Solutions
- Anaerobic Digestion and Biogas Production
- Wastewater Treatment and Reuse
- Phosphorus and nutrient management
- Water Quality and Pollution Assessment
- Land Use and Ecosystem Services
- Heavy metals in environment
- Coastal wetland ecosystem dynamics
- Membrane Separation Technologies
- Soil and Water Nutrient Dynamics
- Groundwater flow and contamination studies
- Landfill Environmental Impact Studies
- Flood Risk Assessment and Management
- Peatlands and Wetlands Ecology
- Urban Heat Island Mitigation
- Hydraulic flow and structures
- Smart Materials for Construction
- Water Quality Monitoring Technologies
- Hydrology and Watershed Management Studies
- Groundwater and Isotope Geochemistry
- Biofuel production and bioconversion
- Coastal and Marine Dynamics
- Wetland Management and Conservation
Queen's University
2013-2022
Tianjin University
2022
SES Group & Associates (United States)
2011
Hawaii Pacific University
2010
University of Manchester
2000-2007
SKA Observatory
2000
Parsons (United States)
2000
National Water Research Institute
1997
Westinghouse Electric (United States)
1990
College of Idaho
1982
ABSTRACT Microbes may play a key role in the mobilization of arsenic present elevated concentrations within aquifers extensively exploited for irrigation and drinking water West Bengal, Bangladesh, other regions South‐East Asia. Microcosm experiments using Cambodian sediments (which are also representative similar reducing containing arsenic‐rich waters) show that release iron reduction microbially mediated demonstrate type organic matter present, not necessarily total abundance matter, is...
Land use and land cover (LULC) change in tropical regions can cause huge amounts of carbon loss storage, thus significantly affecting the global climate. Due to differences natural social conditions between regions, it is necessary explore correlation mechanism LULC storage changes from a broader geographical perspective. This paper takes Hainan Island as research object, through integration CA-Markov Integrated Valuation Ecosystem Services Tradeoffs (InVEST) models, based on multi-source...
Extreme rainfalls in southern Ontario may increase significantly as a result of climate change. This study was designed to determine the impact 15% design rainfall intensities on drainage typical urban catchment and investigate adaptive measures. A calibrated model (PCSWMM 2000) used to: (1) system performance under current climate-changed rainfalls; (2) calculate magnitudes various measures required reduce peak discharge levels. For this type catchment, effective retrofit options that...
In this study, the short-term effects of NaCl stress on free amino acid content and composition root exudates Phragmites australis were evaluated. Nineteen types detected in all samples. The results indicated that significantly influenced total (TotAA) content. TotAA at 6‰ salinity (1098.79 μM g−1 DW) was up to 24 times higher than control group (45.97 but decreased 106.32 DW first hour. period also affected After 4 h stress, 1‰ groups increased by approximately 30- 14-fold, those 3‰ 60%...
The effects of land use on the chemical composition urban stormwater runoff and its subsequent acute toxicity to aquatic invertebrate Daphnia pulex have been investigated in Brunette drainage basin Burnaby, British Columbia. Both interval between rainfall events influenced stormwater. industrial commercial sites were major source those trace metals most often considered toxic invertebrates, with from proving frequently test organism. Toxicity followed sequence > residential open space. A...
Anaerobic co-digestions with fat, oil, and grease (FOG) were investigated in semi-continuous flow digesters under various operating conditions. The effects of hydraulic retention times (HRTs) 12 24 days, organic loading rates (OLRs) between 1.19 8.97 g TVS/Ld, digestion temperatures 37°C 55°C on biogas production evaluated. It was proposed that, compared to anaerobic wastewater treatment plant sludge (primary raw sludge), co-digestion FOG could effectively enhance methane production....
Woodchip bioreactors that stimulate denitrification are proposed to reduce nitrogen (N) loads emanating from subsurface agricultural drainage. However, drainage water contains both N and phosphorus (P), frequently in concentrations exceeding environmental criteria. A mixed-media bioreactor containing woodchips plus reactive media binds soluble P could concurrently lower This study evaluated the concentration load reductions achieved with woodchip full-scale field installations cold, humid...
Abstract Physical and chemical properties of bottom sediment suspended particu-lates were studied at the Kingston stormwater pond. The sediments have accumulated in pond an average rate 0.02 m/year comprised gravel, sand, silt clay; first two materials only by inlet last spread throughout represented up to 45% 54% total sediment, respectively. water content ranged from low 48% (by inlet) high 78% (at outlet), volume. assessment metals against MOEE quality guidelines indicated a gross...
Characteristics of solids recovered from stormwater best management practice (BMP) facilities, including ponds, constructed wetlands, an infiltration basin, a biofilter, treatment clarifier, and three-chamber oil grit separators were described with respect to their metal chemistry. The reported trace concentrations in BMP sediments assessed against the Ontario Sediment Quality Guidelines. Between 80 100% all samples marginally-to-intermediately polluted by Cd, Cr, Cu, Fe, Pb, Mn, Ni Zn....
The detection of microbiological contamination in drinking water from groundwater wells is often made with a limited number samples that are collected using traditional geochemical sampling protocols. objective this study to examine the variability fecal indicator bacteria, as observed discrete samples, due pumping. Two were instrumented multilevel piezometers bedrock aquifer, and bacterial enumeration was conducted on total 166 (for coliform, Escherichia coli, streptococci) standard...