Journal of Environmental Engineering: Recent submissions
Now showing items 581-600 of 6477
-
Evaluation of Thermal Hydrolysis Efficiency of Sewage Sludge via Rheological Measurement
(ASCE, 12/1/2020 )Thermal hydrolysis processes (THP) play an important role in sewage sludge treatment. In this study, both low-temperature (60°C–90°C) and high-temperature (120°C–170°C) thermal hydrolysis experiments were performed on the ... -
Removal of Fluoride from Water Using a Calcium-Modified Dairy Manure–Derived Biochar
(ASCE, 12/1/2020 )This study investigated the removal of fluoride from water using a calcium-modified dairy manure–derived biochar (Ca-DM500). The Ca-DM500 showed a 3.82−8.86 times higher removal of fluoride from water than the original ... -
Mathematical Modeling and Application of Aperture Type of Collimated Beam Apparatus for Fluence Measurement and Radiometer Calibration
(ASCE, 12/1/2020 )In the application of ultraviolet (UV light), it is necessary to obtain reliable information on UV effectiveness, i.e., one should know the fluence reached by microorganisms or the dose absorbed by chemicals. For this ... -
Harvesting Microalgal Biomass from a Cultured Algae-Based Wastewater Pond System
(ASCE, 12/1/2020 )Wastewater stabilization ponds (WSPs) are a popular and economical method to treat wastewater. In the current study, algae-treated effluent from WSPs was used to compare microalgal biomass harvesting methods (aluminum ... -
Mechanical, Chemical, Hydraulic, and Microstructural Properties of Buckshot Clay Amended with Gasification Biochar
(ASCE, 11/1/2020 )This study investigated the effect of gasification biochar amendment on mechanical, chemical, hydraulic, and microstructural properties of Buckshot clay, a high-plasticity clay with poor engineering properties. The ... -
Decomposition of Carboxylic PFAS by Persulfate Activated by Silver under Ambient Conditions
(ASCE, 10/1/2020 )Perfluoroalkyl and polyfluoroalkyl substances (PFAS), widely used in many commercial and military products, have been notorious due to their environmental persistence. Even radical-based advanced oxidation technologies ... -
Nitric Oxide Removal by Combined Ammonia and Fe(II)EDTA in a Packed Tower
(ASCE, 11/1/2020 )To explore the effects of some operating conditions on NO removal efficiency in a packed tower, the denitration process was simulated in a laboratory-scale packed tower using an ammonia solution containing Fe(II) ethylene ... -
Prediction of Nanofiltration and Reverse-Osmosis-Membrane Rejection of Organic Compounds Using Random Forest Model
(ASCE, 11/1/2020 )Data-driven membrane prediction models including multiple linear regression and neural network have been widely applied to analyze reveal rejection interactions between various compounds and membranes. While the random ... -
Three-Dimensional Modeling of Hydrodynamic and Water-Quality Processes in a Wetland
(ASCE, 11/1/2020 )Few studies have been published on three-dimensional (3D) hydrodynamic and water quality modeling of a wetland with extensive data sets for model calibration and verification. Wetland plants include submerged aquatic ... -
CFD as a Complementary Tool to Benchmark Physical Testing of PM Separation by Unit Operations
(ASCE, 11/1/2020 )Unit operation (UO) systems have proliferated to sequester urban drainage particulate matter (PM) and PM-bound constituents. PM has been a primary focus of testing and certification. A nominal class of UOs, hydrodynamic ... -
Oil Removal from Water through the Sorption on Natural Agrowaste Materials
(ASCE, 10/1/2020 )The aim of this work is to investigate the ability of three agrowaste materials (corncobs, palm tree petioles, and sawdust) to remove diesel motor oil and oily waste from demineralized water and natural seawater. Sorption ... -
Ozonation in Tandem with Biosand Filtration to Remove Microcystin-LR
(ASCE, 11/1/2020 )A hybrid ozonation-biofiltration approach is evaluated to understand the necessity and concentration of ozone dose in removing the micropollutant microcystin-LR (MC-LR). To simulate real polluted water, three levels of ... -
Predicting the Adsorption of Indoor VOCs onto Commercial Activated Carbon Based on Linear Solvation Energy Relationship
(ASCE, 10/1/2020 )Volatile organic chemicals (VOCs) are well-known indoor pollutants and are one of the top risks to human health. In this study, we chose commercial activated carbon (CAC) as adsorbents, which are used widely for the removal ... -
Sediment Depositions in a Submerged Storm Sewer Pipe
(ASCE, 10/1/2020 )Sediment depositions in storm sewer systems have received significant attention due to their implications for urban flooding and environmental impacts. However, only limited attention has been paid to sediment deposition ... -
Horizontal Subsurface-Flow-Constructed Wetlands with Tropical Vegetation for the Treatment of Landfill Leachate: Case Study in Cartagena, Colombia
(ASCE, 10/1/2020 )Landfill leachate in developing countries is often discharged into the environment without treatment because most treatment technologies have high costs and are highly complex, making their implementation infeasible. This ... -
Alternative Treatment to Remove Resistant Strains of <i>Vibrio cholerae</i> in Water
(ASCE, 10/1/2020 )Resistant strains of Vibrio cholerae have the potential to reemerge in aquatic reservoirs where they remain in a viable but not cultivable (VBNC) state, or as a rough variant embedded in an exopolysaccharide matrix, which ... -
Enhanced Reduction of Bromate from Water by AC/S-nZVI: Performance and Mechanism
(ASCE, 9/1/2020 1)Nanoscale zero-valent iron (nZVI) particles are one of the most efficient materials for water treatment. However, their poor resistance to oxidation is one of the major reported drawbacks. This study synthesized a series ... -
Investigation of Ultrasonically Induced Degradation of Tris(2-chloroethyl) Phosphate in Water
(ASCE, 10/1/2020 )The widespread use of hazardous organophosphate ester (OPE) flame retardants has led to the contamination of groundwater and drinking water sources. Given the negative impact of OPEs on environmental and human health, there ... -
Comparison of Adsorption Behaviors of Kaolin from Column and Batch Tests: Concept of Dual Porosity
(ASCE, 9/1/2020 1)Batch equilibrium tests with various soil-liquid ratios (S/L=1∶2.5, 1∶5, 1∶10, and 1∶20) and column tests with a flow interruption and rest period were performed to evaluate the adsorption behavior of kaolin. Identical ... -
Preparation of Polyurethane and Carbon Nanotube Foam and Its Adsorption Properties for Sulfonamides in Water
(ASCE, 10/1/2020 )At present, the problem of antibiotic contamination has become a global crisis. Some methods on the removal of antibiotics have been reported, and the adsorptive process was an effective approach to the disposal of antibiotics ...