Journal of Environmental Engineering: Recent submissions
Now showing items 681-700 of 6477
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Urban Water Revolution: Sustainable Water Futures for California Cities
(ASCE, 2020)California has consistently altered natural water resources to provide water for its growing population and to support the fifth largest economy in the world. However, the old ways of coping with the California’s urban ... -
Sustainable Use of Concrete Demolition Waste as Reactive Material in Permeable Barrier for Remediation of Groundwater: Batch and Continuous Study
(ASCE, 2020)This study investigated the possibility of using granules of crushed concrete demolition waste (CCDW) as a reactive medium in a permeable reactive barrier (PRB) to remediate groundwater contaminated with heavy metals. ... -
Effect of pH on Methane Oxidation and Community Composition in Landfill Cover Soil
(ASCE, 2020)Municipal solid waste (MSW) landfills are regarded as one of the major sources of greenhouse gas (GHG) emissions across the world. An innovative and sustainable biogeochemical cover system that consists of soil, biochar, ... -
Performance Evaluation of Biodegradation of Isoprene–Acetone Mixture in Integrated Biofilter
(ASCE, 2020)In this research, the effect of operating variables, namely, inlet isoprene (1–4 g/m3) and acetone concentrations (0.25–1 g/m3), flow rates (0.0785–0.157 m3/h), and biofilter heights (25, 50, 75, and 100 cm) on the ... -
Monorhamnolipids Predominance among Kerosene Degraders
(ASCE, 2020)Rhamnolipids, produced during biodegradation, enhance the removal of hydrocarbons by decreasing the surface tension and increasing the bioavailability. Unlike the synthetic surfactants, rhamnolipids are very promising for ... -
Nitrogen Removal Characteristics in a Biofilm System for Recirculating Aquaculture Wastewater Treatment under High-Salinity Conditions and Oligotrophic Stress
(ASCE, 2020)This study evaluated nitrogen removal characteristics in a biofilm system for recirculating aquaculture wastewater treatment with different carriers and aeration modes under salinity conditions (35 g NaCl L−1) and ... -
Adhesion and Deadhesion of Ureolytic Bacteria on Sand under Variable Pore Fluid Chemistry
(ASCE, 2020)It is essential to understand the phenomena of adhesion, deadhesion, and transport of microorganisms in porous media to scale up bioengineering processes. In this study, the adhesion and deadhesion of two ureolytic ... -
Performance Evaluation of Membrane-Aerated Biofilm Reactor for Acetonitrile Wastewater Treatment
(ASCE, 2020)Biological treatment for volatile organic compound (VOC)–contaminated wastewater with conventional aeration methods causes significant stripping loss of pollutants due to its high volatility. To overcome this problem, the ... -
Simulation of Long-Term Performance of an Innovative Membrane-Aerated Biofilm Reactor
(ASCE, 2020)Researchers have observed that the biofilm nitrification rate (NR) in membrane-aerated biofilm reactor (MABR) systems did not deteriorate at low winter temperatures. Using the pilot data, the temperature impacts were studied ... -
CFD Simulation and Optimization of Flow-Reverse Catalytic-Combustion Reactor
(ASCE, 2020)This work attempts to optimize the traditional flow-reverse reactor by establishing a three-dimensional model of a toluene catalytic-combustion reactor through computational fluid dynamics (CFD). Four optimized structures ... -
Adsorption of Copper and Methylene Blue on an Agrowaste of <i>Mauritia Flexuosa</i>
(ASCE, 2020)Agroindustrial by-products have become an economical and ecofriendly alternative for wastewater treatment because their lignocellulosic structures are prone to adsorb metals and dyes from solutions. Mauritia flexuosa ... -
Chitosan-Based Silver Nanocomposite for Hexavalent-Chromium Removal from Tannery Industry Effluent Using a Packed-Bed Reactor
(ASCE, 2020)Chitosan-based silver nanocomposite beads were synthesized through the facile chemical precipitation method, and its efficiency was evaluated for removal of hexavalent chromium from synthetic and tannery industrial effluents ... -
Optimization of Organic Nitrogen Compounds Removal in Pymetrozine Production Wastewater Using Complex Extraction with Response-Surface Methodology
(ASCE, 2020)Production wastewater of pymetrozine leads to producing a lot of highly concentrated saline organic wastewater so that the related environmental aspects must be studied. In this study, a response surface methodology (RSM) ... -
Agricultural Byproducts as Amendments in Bioretention Soils for Metal and Nutrient Removal
(ASCE, 2020)This study investigated the effectiveness of metal and nutrient removal from stormwater in bioretention systems amended with agricultural byproducts. Both batch and column studies were conducted to evaluate three amendments: ... -
Prediction of H2S Concentration in Landfill Gas Resulting from Construction and Demolition Debris and the Selection of Treatment Method
(ASCE, 2020)Hydrogen sulfide (H2S) concentration in landfill gas (LFG) is predominately dependent on the biodegradation of gypsum drywall, a major component of construction and demolition (C&D) debris. This study focuses on the ... -
Simulating the Long-Term Performance of Multifunctional Green-Pervious Concrete Pavement in Stormwater Runoff–Induced PAHs Remediation
(ASCE, 2020)Stormwater runoff–induced polycyclic aromatic hydrocarbons (PAHs) increasingly raise concerns about groundwater quality and safety. Among stormwater management infrastructures and facilities, pavement plays an important ... -
Effect of Biological Activities on Selenium Removal by Continuous-Flow Reactors Packed with Alum-Impregnated Activated Alumina
(ASCE, 2020)Se(VI) and Se(IV) are the two major species of selenium in water. They are toxic to aquatic lives and human beings at high levels. Biological reduction of Se(VI) is a two-stage process, first from Se(VI) to Se(IV) and then ... -
Factors Affecting Steel Water-Transmission Pipe Failure and Pipe-Failure Mechanisms
(ASCE, 2020)Water-transmission main (WTM) failures transporting a much greater volume of water cause flooding roads, the inconvenience of daily activities, and economic loss. However, few studies have investigated factors affecting ... -
Life-Cycle Assessment of Tertiary Treatment Technologies to Treat Secondary Municipal Wastewater for Reuse in Agricultural Irrigation, Artificial Recharge of Groundwater, and Industrial Usages
(ASCE, 2020)Life-cycle assessment (LCA) was applied to assess the environmental impacts of a wastewater treatment plant (WWTP), along with 20 tertiary treatment options for reuse in agricultural irrigation, artificial recharge of ... -
Influence of Model Parameters and Inlet Turbulence Boundary Specification Methods in Secondary Settling Tanks: Computational Fluid Dynamics Study
(ASCE, 2020)Computational fluid dynamics (CFD) has been applied in secondary settling tank (SST) analysis for more than 30 years. Although great progresses has been achieved, there are still some uncertainties in CFD SST modeling. ...