Journal of Environmental Engineering: Recent submissions
Now showing items 881-900 of 6477
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Treatment of Organic Wastewater Containing High Concentration of Sulfate by Crystallization-Fenton-SBR
(American Society of Civil Engineers, 2018)In this study, a process consisting of cooling crystallization, Fenton reactions, and a sequencing batch reactor was investigated for the treatment of organic wastewater with high chemical oxygen demand (COD) and sulfate ... -
Application of Microbial Transformation to Remediate Hg-Contaminated Water: Strain Isolation and Laboratory Microcosm Study
(American Society of Civil Engineers, 2018)The groundwater at an abandoned industrial site located in Southern Taiwan has been polluted by mercury (Hg), which endangers human health and ecosystems. The objectives of this study were to (1) isolate Hg- and ... -
Mathematical Model for Multiphase Extraction Simulation
(American Society of Civil Engineers, 2018)In this work, a model was built to simulate the multiphase extraction (MPE) applied to soil polluted by toluene. The model is composed of three differential partial equations simulating the multiphase flow of the three ... -
Nitrogen Removal in a Partially Saturated Vertical Subsurface Flow Constructed Wetland Used for Restaurant Wastewater Treatment
(American Society of Civil Engineers, 2018)The objective of this research was to evaluate the nitrogen removal efficiency of a partially saturated vertical subsurface flow constructed wetland (VSFCW) used on university restaurant (UR) effluent treatment. The research ... -
Optimization of an External Nanofiltration Anaerobic Membrane Bioreactor Treating a High-Strength Starch-Based Wastewater
(American Society of Civil Engineers, 2018)Membrane and reactor performance for an anaerobic membrane bioreactor (AnMBR) treating a high-strength starch-based wastewater [average chemical oxygen demand (COD) of 84.8±8.9 g/L] was examined under six varied cleaning ... -
Performance of Regenerative Stormwater Conveyance on the Removal of Dissolved Pollutants: Field Scale Simulation Study
(American Society of Civil Engineers, 2018)Regenerative stormwater conveyance (RSC) is a stormwater control measure (SCM) built in a channel that uses a series of riffles, grade control structures, and pools with an underlying sand media layer to detain and treat ... -
Operational Limitations of Arctic Waste Stabilization Ponds: Insights from Modeling Oxygen Dynamics and Carbon Removal
(American Society of Civil Engineers, 2018)Presented here is a mechanistic model of the biological dynamics of the photic zone of a single-cell arctic waste stabilization pond (WSP) for the prediction of oxygen concentration and the removal of oxygen-demanding ... -
Role of Mycelium in Bioretention Systems: Evaluation of Nutrient and Metal Retention in Mycorrhizae-Inoculated Mesocosms
(American Society of Civil Engineers, 2018)Bioretention systems have become an increasingly common method for treating stormwater in urban areas, which help reduce peak flows and remove contaminants from stormwater. However, nutrients often leach out of the ... -
Dispersion of Weathered Biodiesel, Diesel, and Light Crude Oil in the Presence of Sophorolipid Biosurfactant in Seawater
(American Society of Civil Engineers, 2018)Sophorolipid biosurfactants have shown promise in remediation of oil-contaminated environments. This study investigated the potential application of sophorolipid biosurfactants for enhanced dispersion of weathered biodiesel, ... -
Effect of Dissolved Oxygen on Biological Phosphorous Removal in Continuous-Flow Anoxic-Oxic Process Using Starch as Sole Carbon Source
(American Society of Civil Engineers, 2018)Previous research has demonstrated that biological phosphorus removal (BPR) could be induced by an anoxic-aerobic sequencing batch reactor (SBR). This study applies a continuous-flow anoxic-oxic (AO) reactor at laboratory ... -
Seawater-Washed Activated Bauxite Residue for Fluoride Removal: Waste Utilization Technique
(American Society of Civil Engineers, 2018)Adsorption of fluoride on seawater-washed activated bauxite residue (SWABR) was studied by using fluoride ion analyzer (ion-selective electrode meter). Bauxite residue from the Bayer process is a waste of aluminium refinery, ... -
Proposal of Environmental Flow Assessment Criteria for Exceptional Hydrologic Situations
(American Society of Civil Engineers, 2018)One of the difficulties with habitat simulation methods for environmental flow determination is how to choose the minimum commitment point on the weighted usable area (WUA)–flow (Q) curve. For decades, considerable efforts ... -
Degradation of p-Aminobenzoic Acid by Zero-Valent Iron Activated Persulfate System
(American Society of Civil Engineers, 2018)Persulfate (PS) activated by zero-valent iron (ZVI) for the degradation of p-aminobenzoic acid (PABA) was investigated in this study. Compared with the removal of PABA, the degradation of PABA−CAP (in the presence of ... -
Cellular Confinement Systems to Prevent Resuspension in Sediment Basins
(American Society of Civil Engineers, 2018)Sediment basins provide quiescent conditions that enable settling of fine particles present in runoff, mitigating environmental effects created by excessive sediment discharges. Yet, settled particles are susceptible to ... -
Migration and Control of Invertebrates in Waterworks with Advanced Treatment
(American Society of Civil Engineers, 2018)The migration of invertebrates at each step of the treatment process in four waterworks with advanced treatment in eastern China was investigated for the first time. Raw water quality and water temperature had a strong ... -
Predicting the Partitioning of Organic Compounds through Polymer Materials: Quantum Mechanical Applications
(American Society of Civil Engineers, 2018)Hazardous organic compounds can permeate gas pipelines and geomembranes made of organic polymer materials in landfills and leak into the surrounding environment, contaminating groundwater. The permeation of organic compounds ... -
Online Fluorescence Monitoring of Effluent Organic Matter in Wastewater Treatment Plants
(American Society of Civil Engineers, 2018)Wastewater treatment is an energy-intensive operation. Energy consumption is forecast to increase by 6% in the forthcoming decade due to tightened legislation surrounding the discharge of final effluent to watercourses. ... -
Methane Production of Algal Biomass from Facultative Stabilization Pond: Evaluation of Anaerobic Biodegradability and Codigestion with Sewage Sludge
(American Society of Civil Engineers, 2018)Anaerobic biodegradability tests of algae biomass produced on a facultative sewage stabilization pond were conducted at 33 K for up to 24 days. The addition of urea and KH2PO4 enabled the algae biomass to adjust ... -
Biodegradation of Chlortetracycline by Trametes versicolor–Produced Laccase: By-Product Identification
(American Society of Civil Engineers, 2018)Chlortetracycline (CTC) is one of the widely used antibiotics in animal farms commonly found in wastewater and surface water and therefore development of new treatment technologies is necessary to avoid adverse effects on ... -
Impact of Pulsed Dielectrophoretic Supply on the Function of Microorganisms in Membrane Bioreactors
(American Society of Civil Engineers, 2018)This study aims to investigate the effect of dielectrophoretic (DEP) force on microorganisms’ viability in a membrane bioreactor (MBR). The impact of different electrical potentials (5–15 V) and different exposure ...