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Reynolds Stress Anisotropy in Open-Channel Flow
Publisher: American Society of Civil Engineers
Abstract: This paper reports the results of an experimental study characterizing turbulence and turbulence anisotropy in smooth and rough shallow open-channel flows. The rough bed consists of a train of two-dimensional transverse ...
Volatilization of Selected Organic Compounds from Quiescent Water
Publisher: American Society of Civil Engineers
Abstract: Volatilization of selected organic compounds from water without agitation has been studied. Mathematical models, incorporating Fick's diffusion law, are developed for volatilization under quiescent condition. A theoretical ...
PCE Volatilized from Stagnant Water and Soil
Publisher: American Society of Civil Engineers
Abstract: Batch equilibrium studies are conducted under controlled laboratory conditions to determine the volatilization rate for perchloroethylene (PCE) from water and soil. The PCE is observed to volatilize rapidly from water. The ...
Equilibrium Gaseous Adsorption at Different Temperatures
Publisher: American Society of Civil Engineers
Kinetic Model for Removal of Phenol by Horseradish Peroxidase with PEG
Publisher: American Society of Civil Engineers
Abstract: A kinetic model has been developed to simulate horseradish peroxidase-catalyzed polymerization of phenol in the presence of polyethylene glycol based on the following kinetics. The phenol conversion expression is a ...
Impact of Initial pH and Linoleic Acid (C18:2) on Hydrogen Production by a Mesophilic Anaerobic Mixed Culture
Publisher: American Society of Civil Engineers
Abstract: Hydrogen production from glucose using a mixed anaerobic culture was assessed under batch conditions by adjusting the initial pH and adding linoleic acid (LA). At an initial pH of 5.0, hydrogen (
Modeling a Retention Treatment Basin for CSO
Publisher: American Society of Civil Engineers
Abstract: Combined sewer overflows (CSOs) result in hazardous and unsightly contamination of receiving waters, particularly swimming areas. The removal of suspended solids and associated biological oxygen demand (BOD) can accelerate ...
Response Surface Methodology for Optimization of Enzyme-Catalyzed Azo Dye Decolorization
Publisher: American Society of Civil Engineers
Abstract: Azo dyes are a water-pollution problem causing damage to ecosystems and human health. Soybean peroxidase–catalyzed reactions of azo dyes, Acid blue 113 (AB113) and Direct black 38 (DB38), were optimized for color removal ...
Usage of Oleic and Stearic Acids in Mixed Anaerobic Culture for Sulfate Reduction While Inhibiting Methanogenesis
Publisher: ASCE
Abstract: In a mixed anaerobic biotreatment process, sulfate is converted into sulfide by sulfate-reducing bacteria (SRB). Sulfidogens and methanogens in a mixed anaerobic culture can compete for electrons. Diverting a larger fraction ...