Journal of Environmental Engineering: Recent submissions
Now showing items 541-560 of 6477
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Purification Efficiency of Bioretention with Modified Media under Varied Rain Intensity and Drying Conditions
(ASCE, 4/1/2021)Bioretention media plays a vital role in bioretention systems for controlling rainfall runoff volume and removing pollutants. In this work, three different types of modified media used in bioretention including a mixture ... -
Kinetics and Stoichiometry of an Efficient Methanotroph <i>Methylosarcina</i> sp. LC-4 Isolated from a Municipal Solid Waste Dumpsite
(ASCE, 5/1/2021)In recent times methanotrophs have gained immense interest due to their ability to sequester and utilize methane, which is an inexpensive carbon source as well as a very potent greenhouse gas. Despite their vast potential ... -
Long-Term Operation of a Pilot-Scale Membrane Bioreactor Treating Brewery Wastewater: Relaxation as a Method for Detection of Membrane Fouling
(ASCE, 4/1/2021)Fouling control and operation below critical fluxes are relevant for operating membrane bioreactors (MBRs). Within this study, the long-term performance of a pilot-scale MBR was characterized with the aim of achieving ... -
Catalytic Wet Peroxide Oxidation of Dye Wastewater over Fe-Zr-Al/Mt Catalysts with High Activity and Stability
(ASCE, 3/1/2021)The construction of a catalyst with high activity and stability is crucial for wastewater treatment. In this study, Fe-Zr-Al/pillared montmorillonite (Fe-Zr-Al/Mt) catalysts were successfully prepared by the conventional ... -
Measurement of the Ultraviolet Output of an Underwater Monochromatic (254 nm) Low Pressure–Mercury Ultraviolet Lamp
(ASCE, 4/1/2021)The International Ultraviolet Association (IUVA) recommended a method to measure the ultraviolet (UV) output of monochromatic (254 nm) UV lamps. In that method, the lamp is operated in open air and it is not applicable to ... -
Bioenergy Production and Slaughterhouse Wastewater Treatment in a Column-Type Anaerobic Sequencing Batch Reactor without Any External Mixer or Gas or Liquid Recirculation
(ASCE, 3/1/2021)The performance of a column-type anaerobic sequencing batch reactor (ASBR) with a high height-to-diameter (H/D) ratio of 10 was evaluated while treating slaughterhouse wastewater. The reactor was operated without any ... -
Study of Aerated Fluidized Bed Treatment of Wastewater Containing Cd2+ and Simulation of Flow Field of Internal Circulation System
(ASCE, 3/1/2021)Using the computational fluid dynamic numerical simulation method, the gas, liquid, and solid three-phase hydrodynamic behavior in a self-made aeration fluidized bed reactor was simulated numerically. The influence of gas ... -
Design and Performance of a Toluene-Degrading Differential Biotrickling Filter as an Alternative Research Tool to Column Reactors
(ASCE, 3/1/2021)A differential biotrickling filter (DBTF) was developed as a research tool to minimize radial and longitudinal gradients, which hinder analysis in integral (column) reactors. The main design modifications were a very high ... -
Evaluating the Physicochemical, Nutrient, and Pathogenic Characteristics of Fecal Sludge for Fertilizer Application: Case from Vadgaon Maval, Maharashtra, India
(ASCE, 3/1/2021)Unscientific application of fecal sludge (FS) on agricultural fields in India has led to fecal coliform and heavy metal accumulation in the food chain. The design of FS treatment depends on accurate knowledge of its ... -
Exogenous pH Buffer System with K2HPO4/KH2PO4 Addition Improving Thermophilic High-Solid Anaerobic Digestion of Waste-Activated Sludge
(ASCE, 2/1/2021)Volatile fatty acids (VFAs) and ammonia accumulation showed high inhibition for the high-solid anaerobic digestion (HSAD) of waste-activated sludge. This study investigated the effects of an exogenous pH buffer system with ... -
Impact of Total Suspended Solids on Struvite Precipitation from Source-Diverted Blackwater
(ASCE, 3/1/2021)Source-diverted blackwater, especially concentrated blackwater collected from vacuum toilet systems, has been demonstrated to be an ideal source for struvite (NH4MgPO4·6H2O) production. However, the impacts of total suspended ... -
Enhanced Performance of Sulfonated GO in SPEEK Proton-Exchange Membrane for Microbial Fuel-Cell Application
(ASCE, 2/1/2021)Sulfonated graphene oxide (SGO) was prepared using sulfuric acid and used as a nanofiller at various concentrations in self-fabricated sulfonated polyetheretherketone (SPEEK) to produce nanocomposite proton-exchange membranes ... -
Behavior of Natural Fine Soil Particle Dispersions in Nonaqueous-Phase Liquids
(ASCE, 2/1/2021)Understanding and quantifying particle–fluid interaction (PFI) is of fundamental importance for such geoenvironmental issues as polluted soil behavior, transport of organic contaminants in porous media, and the behavior ... -
Removal of Polycyclic Aromatic Hydrocarbons from Water Using Mn(III)-Based Advanced Oxidation Process
(ASCE, 3/1/2021)Floods have the potential to resuspend polycyclic aromatic hydrocarbons (PAHs) laden sediments and potentially impact drinking water intakes. This work identifies optimal operating conditions for the PAH removal from water ... -
<i>Cryptosporidium</i> and <i>Giardia</i> Concentrations: 13-Year Longitudinal Analysis of Monitoring in Eight Independent Streams
(ASCE, 4/1/2021)Since the 1990s, a major Australian water agency has monitored the concentrations of Cryptosporidium and Giardia in eight tributaries to its principal water supply reservoir. The accumulated data have recently been made ... -
Biological Excess-Sludge Reduction and Sludge Settleability Improvement Using a New Modified IFAS-OSA Process by Adding an Anoxic Sludge-Holding Tank to the Return Activated Sludge Line of the System
(ASCE, 2/1/2021)Integrated fixed film activated sludge-oxic settling anoxic system (IFAS-OSA) is a new, modified system for excess-sludge reduction. In this research, the efficiency of the IFAS-OSA system in biological excess-sludge ... -
Application of Carbon Microsphere Loaded with Magnetite Nanoparticles for the Removal of a Cationic Azo Dye: Efficiency and Mechanism
(ASCE, 2/1/2021)Methylene blue (MB), a cationic azo dye, is harmful to the environment and human health. In this study, carbon microspheres (CMS)@magnetite was prepared to remove MB. The performance of CMS@magnetite on MB removal and ... -
Conversion of Waste Materials into Heterogeneous Oxidation Catalysts for Treatment of Chlorinated Organics
(ASCE, 2/1/2021)Waste disposal is a challenging environmental concern worldwide. Carbon-rich waste materials can be transformed into adsorbent and/or catalyst support to reduce treatment costs and promote waste recycling. In the present ... -
Three-Dimensional Hydrodynamic Behavior of an Operational Waste-Stabilization Pond
(ASCE, 2/1/2021)Waste stabilization ponds (WSPs) are a common wastewater treatment approach throughout the world. Typically, WSPs are designed with the aid of empirical equations that may not incorporate complex hydrodynamics. Whereas ... -
Influence of Waste Temperatures on Long-Term Landfill Performance: Coupled Numerical Modeling
(ASCE, 3/1/2021)A coupled thermo-hydro-bio-mechanical (CTHBM) numerical model to simulate the long-term behavior of municipal solid waste in landfills is presented. Three numerical simulations—a conventional landfill simulation with no ...