A5066179671- Child Nutrition and Water Access
- Wastewater Treatment and Reuse
- Fecal contamination and water quality
- Water resources management and optimization
- Wastewater Treatment and Nitrogen Removal
- Urban Stormwater Management Solutions
- Water Quality and Pollution Assessment
- Hydrology and Sediment Transport Processes
- Public-Private Partnership Projects
- Urban and Rural Development Challenges
- Water Systems and Optimization
- Coal Combustion and Slurry Processing
- Phosphorus and nutrient management
- Smart Materials for Construction
- Granular flow and fluidized beds
- Constructed Wetlands for Wastewater Treatment
- Parasitic Infections and Diagnostics
- Soil erosion and sediment transport
- Geological formations and processes
- Integrated Water Resources Management
- Water Quality Monitoring and Analysis
- Mineral Processing and Grinding
- Aerosol Filtration and Electrostatic Precipitation
- Water Quality Monitoring Technologies
- Water Treatment and Disinfection
University of KwaZulu-Natal
2004-2022
Georgia Institute of Technology
2001
This study presents an extensive plant-wide model-based assessment of four alternative activated sludge (AS) configurations for biological nitrogen (N) and phosphorus (P) removal under uncertain influent loads characteristics. Zeekoegat wastewater treatment plant (WWTP) in South Africa was chosen as case due to its flexible design that enables operation different AS configurations: 3-stage Bardenpho (A2O), University Cape Town (UCT), UCT modified (UCTM), Johannesburg (JHB). A metamodeling...
Previous studies involving filter runs seeded with oocysts have not shown significantly poorer removals during ripening. However, these typically did seed throughout the preceding run, which is necessary for representative numbers of to be present in backwash‐remnant water. In this study, four trials consisting three five consecutive were continuously and/or microsphere surrogates so that they would appear water successive run. Compared concentrations postripening period, and microspheres...
The increased passage of particles through granular media filters immediately following backwashing is commonly known as the filter‐ripening period, and several strategies have been developed years to reduce effect this vulnerable period filtration cycle on finished water quality. A new filter‐backwashing strategy aimed at reducing particle into effluent water—the extended terminal subfluidization wash—has evaluated both pilot‐ full‐scale a direct biological plant. sequence (FRS) described...
Delayed start is an operational procedure aimed at reducing the negative effect of filter ripening sequence (FRS) on quality filtered water. The delayed has been evaluated under a variety conditions and provides insights into mechanisms behind FRS. Experiments were conducted both pilot plant scales, comparison these results led to discovery importance backwash water chemistry Polyphosphates in shown negatively affect immediately after backwashing. Discoveries also made that will help explain...
The effect of solution chemistry on the behavior kaolinite in three different situations was investigated: (1) detachment from glass beads a fluidized bed, (2) erosion deposits laboratory flume and (3) determination stress-strain rate relationship concentrated suspensions rheometer. experimental results these approaches could be explained terms changes mode particle associations which turn characterized micromechanical force model predicts interaction between adjacent surfaces. Understanding...
Research Article| August 01 2005 Practical and theoretical guidelines for implementing the extended terminal subfluidization wash (ETSW) backwashing procedure James E. Amburgey; Amburgey 1Water Treatment Research, Inc., 2291 Plantation CourtLawrenceville, GA 30044, USA Tel.: (770) 488-4202 Fax: 488-4253 james_amburgey@hotmail.com E-mail: Search other works by this author on: This Site PubMed Google Scholar Barbara M. Brouckaert 2School of Chemical Engineering, University KwaZulu-Natal,...
A modelling study is under way in preparation for a planned upgrade of the capacity kwaMashu WWTP eThekwini, South Africa, from 50 to 80 ML/d. When configuration an existing plant be changed, most critical part model calibration influent wastewater fractionation. However, constantly varying characteristics make experimental determination adequately representative set components difficult, time-consuming and expensive, which constitutes significant barriers adoption by many municipalities....