Journal of Environmental Engineering: Recent submissions
Now showing items 841-860 of 6477
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Improved Bioactivity on Substrate Degradation in Microbial Fuel Cells Using Tourmaline-Modified Anodes
(American Society of Civil Engineers, 2019)The modification of anodes to improve the startup and biodegradation is an effective way to advance the development of microbial fuel cells (MFCs) as a promising technology for wastewater treatment. This paper studied ... -
Electrocatalytic Degradation of Phenol by the Electrooxidation–Electrocoagulation Hybrid Process: Kinetics and Identification of Degradation Intermediates
(American Society of Civil Engineers, 2019)The electrocatalytic degradation of phenol has been investigated by combining two processes, namely electrocoagulation (EC) and electrooxidation (EO), as a hybrid process. Ti/Pt-Fe and Ti/Pt-Al pairs of electrodes have ... -
Response Surface Methodology for Optimization of Enzyme-Catalyzed Azo Dye Decolorization
(American Society of Civil Engineers, 2019)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 ... -
Cohesivity, Formation of Particle Clusters, and Blanket Settling Velocity in a Fluidized Bed
(American Society of Civil Engineers, 2019)This study describes the formation, particle clustering, settling mechanism, and settling velocity (Vs) in a fluidized bed reactor using laboratory and field experiments based on its cohesivity, which is expressed as a ... -
Stabilization of Scorodite by Aluminum Silicate Microencapsulation
(American Society of Civil Engineers, 2019)Crystalline scorodite (FeAsO4·2H2O) is a common arsenic-(As-)containing solid waste produced from nonferrous metallurgical processes. Its stability is the key factor to determine environmental risks. Scorodite is stable ... -
Enhanced Effects of Tourmaline on Moving Bed Biofilm Reactor–Based Partial Nitrification Process
(American Society of Civil Engineers, 2019)This paper compares two different carriers, polyurethane foam (PU) and polyurethane foam loaded with tourmaline (TPU), for the partial nitrification (PN) of supernatant from an anaerobic sludge digester using moving bed ... -
Enhancement of Nitrate-Removal Efficiency Using a Combination of Organic Substrates and Zero-Valent Iron as Electron Donors
(American Society of Civil Engineers, 2019)Agriculture is the most extensive source of nitrate to water resources. A high concentration of nitrate contamination in drinking water is a significant risk to human health. The aim of this study was to select the appropriate ... -
Changes in Physical and Mechanical Properties of Gas Oil–Contaminated Clayey Sand after Addition of Clay Nanoparticles
(American Society of Civil Engineers, 2019)In this paper, behavior of clayey sand contaminated with gas oil was studied through a series of laboratory experiments, and the possibility of improving it for the treatment of physical and mechanical characteristics was ... -
Effects of Land Use and Soil Management on Soil Quality in India’s Northeastern Himalayas
(American Society of Civil Engineers, 2019)Quantitative evaluation of soil quality is needed to investigate the sustainability of a particular land use and soil management in relation to plant production and environmental quality. The present study aims to detect ... -
Supercritical Water Oxidation of Pyridine and 3-Cyanopyridine: TOC Removal, Kinetics, and Degradation Pathway
(American Society of Civil Engineers, 2019)Supercritical water oxidation (SCWO) has emerged as a promising technique to eliminate refractory aromatic compounds, which are difficult to remove by conventional wastewater-treatment processes. Decompositions and degradation ... -
Evidence for Resistance of Activated Sludge Flocs to Deflocculative DO Stress
(American Society of Civil Engineers, 2019)In the published literature, deflocculation of aerobic biological flocs under low dissolved oxygen (DO) (<0.5 mg/L) conditions is typically reported as occurring as early as after 1 h of oxygen deficiency. However, ... -
Photocatalysis in Membrane Bioreactor Effluent: Assessment of Inhibition by Dissolved Organics
(American Society of Civil Engineers, 2019)Photocatalysis has been proposed as a synergistic addition to ultraviolet (UV) dosing systems to provide a form of advanced oxidation. The photocatalytic process, however, is significantly inhibited by dissolved organic ... -
Aluminum-Impregnated Biochar for Adsorption of Arsenic(V) in Urban Stormwater Runoff
(American Society of Civil Engineers, 2019)Biochar has recently emerged for the alleviation of various pollutants in urban runoff. However, the adsorption of arsenate (a frequently identified pollutant in urban runoff) with biochar is typically poor. In this study, ... -
Potential of a Static Magnetic Field to Inhibit Filamentous Sludge Bulking in Activated Sludge Process
(American Society of Civil Engineers, 2019)Sludge bulking caused by filamentous microorganisms is one of the prevailing operational problems in activated sludge process. Its severity is determined by the relative abundance of filamentous microorganisms that prevents ... -
Electrokinetic Enhancement: Effect of Sample Stacking on Strengthening Heavy Metal Removal in Electrokinetic Remediation of Municipal Solid Waste Incineration Fly Ash
(American Society of Civil Engineers, 2019)Municipal solid waste incineration (MSWI) fly ash is internationally categorized into a hazardous waste due to its high content of heavy metals (HMs) and dioxins. A traditional electrochemical platform was intrinsically ... -
Energy Recovery and Nitrogen Management from Struvite Precipitation Effluent via Microbial Fuel Cells
(American Society of Civil Engineers, 2019)Engineered struvite precipitation (ESP) is now a common procedure to recover phosphorus and nitrogen from waste streams such as wastewater-treatment-plant sidestreams, urine, landfill leachate, and agricultural waste. ... -
Temporal and Spatial Changes in Bromine Incorporation into Drinking Water–Disinfection By-Products in Pennsylvania
(American Society of Civil Engineers, 2019)Bromide concentrations have been changing in rivers in Pennsylvania. Elevated bromide in source waters at drinking water treatment plant intake locations is expected to increase the formation and bromine incorporation of ... -
Geochemistry in Sediment Core for Zinc and Nickel Metals and Comparison between Indexes of Environmental References
(American Society of Civil Engineers, 2019)This study applies calculations and methodologies for the evaluation of concentrations of zinc and nickel coupled to local reference values (background). It also calculates the geoaccumulation index and the intensity of ... -
Water Reduction and Nutrient Reconcentration of Hydrolyzed Urine via Direct-Contact Membrane Distillation: Ammonia Loss and Its Control
(American Society of Civil Engineers, 2019)Water flushing increases the urine transportation cost in a source-separation system, a new concept in sustainable management of municipal wastewater. This study investigates the reduction of water and the reconcentrations ... -
Comparing Transport of <i>Cryptosporidium</i>-Sized Carboxylated Microspheres in Two Undisturbed Soil Cores under Unsaturated Conditions
(American Society of Civil Engineers, 2019)Cryptosporidia are opportunistic pathogens, some of which infect humans when ingested in water or food. Filtration through granular media is the primary mechanism to remove them from water. Natural soils’ ability to filter ...