Journal of Environmental Engineering: Recent submissions
Now showing items 701-720 of 6477
-
Computational Fluid Dynamics of a Corrugated Plate-and-Frame Heat Exchanger Used for Ocean Thermal-Energy Conversion
(ASCE, 2020)Computational fluid dynamics (CFD) simulations were employed in this paper to analyze the dynamic flow patterns within extremely thin slit spaces of two corrugated heat exchanger (HEx) plates. The entire plates are 1.0 m ... -
Soil Microcosm Study for Bioremediation by a Crude Oil Degrading <i>Pseudomonas aeruginosa</i> NCIM 5514
(ASCE, 2020)Agricultural land pollution is a big threat globally, which is associated with petroleum industry activities. Hence, the exploration of remedial methods for the treatment of polluted agricultural soils is necessary. In ... -
Examining Fate and Transport of Heavy Metal in Landfill Site through Numerical Environmental Multimedia Modeling Approach
(ASCE, 2020)In this study, the environmental multimedia model (EMM) is extended for assessing the heavy metal in a contaminated site. Using numerical analysis, the EMM is advanced as a numerical EMM system (NEMMS) including three ... -
Effect of Permeate Flux and Backwashing on Quorum Sensing and Quenching within Biocake Layer in Membrane Bioreactor
(ASCE, 2020)Filtration and backwashing during the operation of a membrane bioreactor (MBR) physically induce the cyclic attachment and detachment of microbes on the membrane surface. Thus, permeate flux and backwashing affect the ... -
Prediction of Boundary and Stormwater <i>E. Coli</i> Concentrations Using River Flows and Baseflow Index
(ASCE, 2020)E. coli (EC) concentrations of the upstream boundary, tributaries, and stormwater in the lower Passaic River at Paterson, New Jersey, were modeled using multivariate polynomial regression (MPR). Baseflow indexes (BFIs) and ... -
Laboratory and Field Investigation of Sulfolane Removal from Water Using Activated Carbon
(ASCE, 2020)Batch and fixed-bed adsorption experiments were conducted to evaluate the feasibility of using activated carbon to remove sulfolane from aqueous media. Nine commercially available activated carbons with different particle ... -
Impacts of High-Strength Boat Waste on Activated Sludge Processes
(ASCE, 2020)Decisions to accept side-stream wastes at municipal wastewater treatment facilities require knowledge about potential impacts on plant operations. Among potential waste streams, coastal communities are increasingly asked ... -
Preparation of AC/Cu-BTC Composite and Its Adsorption Mechanisms
(ASCE, 2020)The copper-based metal organic framework Cu-BTC (Copper Benzene-1,3,5-tricarboxylate) was synthesized by the solvothermal method, and AC/Cu-BTC composites were prepared by introducing different proportions of activated ... -
Issues in Hydraulic Design of Sanitary Sewers
(ASCE, 2020)Various protocols are used in the hydraulic design of sanitary sewers, with key differences related to the assurance of self-cleansing, and the selection of Manning’s n. Analyses reported in this paper show that ... -
Facile Improvement of Nanoscale Zero-Valent Iron Activity with Exceptional Stability for Reduction of Cr(VI)
(ASCE, 2020)In the present study, a highly active reaction system of nanoscale zero-valent (nZVI) was successfully established by enhancing nZVI with a biodegradable complexing agent (CA) and applied to hexavalent chromium [Cr(VI)] ... -
Effects of Different Additives and Ambient Conditions on Acceleration of Sludge Stabilization: Laboratory-Scale Simulated Landfill Study
(ASCE, 2020)Fresh cow dung and iron scraps were added to municipal sewage sludge under laboratory-simulated anaerobic landfill conditions. Simulated anaerobic and semiaerobic landfilling of sludge without any additives were conducted ... -
Three-Dimensional Laboratory Experiments on Fate and Transport of LNAPL under Varying Groundwater Flow Conditions
(ASCE, 2020)Variations in groundwater flow regimes due to direct draining/pumping and surrounding climatic variabilities may significantly affect the spatial and temporal distribution of hydrocarbon compounds in the subsurface. The ... -
Nitrate Reduction Using Iron and Copper Bimetallic Nanoparticles Supported by Chelating Resin: Effect of Solution Chemistry, Mechanism, and Regeneration
(ASCE, 2020)Nanoscale zero-valent iron/copper supported on chelating resin (D-Fe/Cu) was prepared for removing nitrate from water. Batch experiments were carried out to investigate the effect of solution chemistry, including the initial ... -
Table Optimization of Operating Conditions for a Superwetting Ultrafiltration ZrO2 Ceramic Membrane
(ASCE, 2020)This paper represents an experimental and modeling study on the performance of a novel superwetting zirconium dioxide ultrafiltration membrane. The effects of different operating conditions were tested using an oily emulsion ... -
Extended Activated Sludge Model No.1 with Floc and Biofilm Diffusion for Organic and Nutrient Removal
(ASCE, 2020)This paper presents a modified mathematical model for substrate degradation and nutrient removal by aerobic microorganisms. The modified model is based on Activated Sludge Model No.1 (ASM1) for bacterial growth incorporated ... -
Full-Scale Application of Activated Carbon to Reduce Pollutant Bioavailability in a 5-Acre Lake
(ASCE, 2020)The first full-scale remediation project in North America to use the direct placement of activated carbon (AC) into sediments was completed in 2013 in a 2-ha lake on the St. Jones River in Dover, Delaware. The sediment ... -
Evaluating Resilience of Water Distribution Networks to Operational Failures from Cyber-Physical Attacks
(ASCE, 2020)Water cyber-physical systems (CPSs) have gained increasing interest to improve operational efficiency and reliability. However, due to growing exposure to cyber-physical attacks, cybersecurity and resilience against the ... -
Protozoa and Virus Disinfection by Silver- and Copper-Embedded Ceramic Tablets for Water Purification
(ASCE, 2020)Point-of-use water treatment (PoUWT) technologies have been shown to reduce incidences of waterborne diseases. However, their effectiveness is limited against the most harmful pathogens, such as protozoa and viruses, due ... -
Evaluation of the Effects of Inlet Conditions on Particle-Laden Flows in Secondary Sedimentation Tanks
(ASCE, 2020)Sedimentation tanks are one of the most important and costly parts of the water treatment process in which particles remaining from previous stages settle down due to the force of gravity. In this research, particle-laden ... -
Carbon Nano-Onions (CNOs)/TiO2 Composite Preparation and Its Photocatalytic Performance under Visible Light Irradiation
(ASCE, 2020)Carbon nano-onions/titanium dioxide (CNOs/TiO2) photocatalyst was synthesized by a simple sol-gel method and characterized by the methods of X-ray diffraction (XRD), scanning electronic microscope (SEM), X-ray photoelectron ...