Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Transportation Engineering (11)
- Construction Engineering and Management (9)
- Structural Engineering (8)
- Environmental Engineering (6)
- Other Civil and Environmental Engineering (4)
-
- Geotechnical Engineering (3)
- Hydraulic Engineering (3)
- Computer Engineering (2)
- Engineering Science and Materials (2)
- Materials Science and Engineering (2)
- Mechanics of Materials (2)
- Other Materials Science and Engineering (2)
- Structural Materials (2)
- Communication (1)
- Communication Technology and New Media (1)
- Computational Engineering (1)
- Computational Linguistics (1)
- Computer and Systems Architecture (1)
- Digital Communications and Networking (1)
- Engineering Mechanics (1)
- Geological Engineering (1)
- Industrial Engineering (1)
- Linguistics (1)
- Operations Research, Systems Engineering and Industrial Engineering (1)
- Other Computer Engineering (1)
- Other Engineering Science and Materials (1)
- Risk Analysis (1)
- Keyword
-
- Faculty (38)
- Sustainability (11)
- ABAQUS (8)
- Machine learning (8)
- Rutting (8)
-
- Evaporation (7)
- Landfill (7)
- Recycled plastic pins (7)
- Life cycle assessment (6)
- Shear strength (6)
- Steel fiber (6)
- CFRP (5)
- Compressive strength (5)
- Condition assessment (5)
- Corrosion (5)
- Finite element analysis (5)
- Methane (5)
- Pavement (5)
- SFRC (5)
- Synthetic fibers (5)
- Anchors (4)
- Bridges (4)
- Concrete (4)
- Construction (4)
- Cracking (4)
- Durability (4)
- Expansive soils (4)
- Fiber-reinforced concrete (4)
- Finite element method (4)
- Fly ash (4)
- Publication Year
- Publication
- Publication Type
- File Type
Articles 301 - 330 of 677
Full-Text Articles in Civil Engineering
Non-Destructive Evaluation Of Soil Moisture In Evapotranspiration Cover System, Md Ishtiaque Hossain
Non-Destructive Evaluation Of Soil Moisture In Evapotranspiration Cover System, Md Ishtiaque Hossain
Civil Engineering Dissertations - Archive
A conventional landfill cover system is designed as a barrier layer system, with low hydraulic conductivity, to minimize the percolation of water from the cover to the waste. Evapotranspiration (ET) covers are currently becoming a popular alternative that are acceptable to landfill authorities, due to their cost effectiveness and nature-friendly performance. The principle function of the ET cover is to store the infiltrated water, using the water balance technique, until it is transpired by plants into the atmosphere, thus minimizing percolation. The performance of the final cover system is assessed by monitoring the soil moisture in the ET cover and …
Development Of A Production Estimation Model For Tunnel Boring Machines (Tbms), Saeed Janbaz
Development Of A Production Estimation Model For Tunnel Boring Machines (Tbms), Saeed Janbaz
Civil Engineering Dissertations - Archive
Advance rate (AR) estimation is a crucial factor at the conceptual phase of a tunneling project for preliminary estimation of tunnel boring machines' (TBMs') usage. The primary objective of this research is to develop order of magnitude performance charts for advance rate of TBMs that can be used using the limited information about the tunneling progress at the conceptual phase. The secondary objective of this dissertation is to evaluate factors that impact TBM progress in large diameter applications. Tunnel diameter and uniaxial compressive strength of ground are found to be some of the primary parameters for prediction of advance rate. …
Fatigue Impacts On Hdpe Pipe Material Properties, Marjan Shahrokh Esfahani
Fatigue Impacts On Hdpe Pipe Material Properties, Marjan Shahrokh Esfahani
Civil Engineering Dissertations - Archive
During a pipe’s life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. Frequent pressure surges or fluctuations in a piping system may cause a fatigue failure as fatigue is one of the most important issues in water pipes due to water hammer impacts. Application of buried High Density PolyEthylene (HDPE) water pipelines has significantly increased in recent years, and PE4710 is a new member of HDPE family. So, there is not yet enough information about PE4710 long-term performance. Due to lack of enough …
Aermod Modeling Of Air Pollutant Emissions From Backup Generator Use In Lagos, Nigeria, Temitope Abayomi
Aermod Modeling Of Air Pollutant Emissions From Backup Generator Use In Lagos, Nigeria, Temitope Abayomi
Civil Engineering Theses - Archive
Generator emissions contribute to increase in air pollution. In developing countries with inadequate electricity supply, many people rely on back-up generators for long-term electricity supply. Nigeria is the second biggest importer of generators in Africa. As of 2009, it was estimated that 60 million people in Nigeria owned and operated small to medium size generators to provide electricity for their daily use. The sheer number of generators in use suggests that generator emissions are a significant source of air pollution in the country, particularly in urban cities. In this work, the concentrations of pollutants emitted from 50 generators in a …
Seismic Performance Of Double-Channel And Double-Hss Sections, Special Truss Moment Frame With Buckling Restrained Braces, And Long Span Special Truss Moment Frame, Chatchai Jiansinlapadamrong
Seismic Performance Of Double-Channel And Double-Hss Sections, Special Truss Moment Frame With Buckling Restrained Braces, And Long Span Special Truss Moment Frame, Chatchai Jiansinlapadamrong
Civil Engineering Dissertations - Archive
Until recently, all special truss moment frame (STMF) experimental research was done on only double angle STMFs. In order to satisfy the code seismic drift limitation, especially for mid-rise and tall multistory buildings, a large column section is needed, when double angle sections are used. However, heavy chord members can be used in this instance. Due to configuration of STMFs, the chord members in the special segment of an STMF experience higher rotational demand than the story drift. As a result, there is a need to verify large rotational capacity of other heavy steel shapes. Recent analytical investigation and experimental …
Conditional Bias-Penalized Kalman Filter For Improved Estimation And Prediction Of Extremes, Miah Mohammad Saifuddin
Conditional Bias-Penalized Kalman Filter For Improved Estimation And Prediction Of Extremes, Miah Mohammad Saifuddin
Civil Engineering Theses - Archive
Kalman filter (KF) and its variants are widely used for real-time updating of model states and prediction in environmental sciences and engineering. Whereas in many applications the most important performance criteria may be the fraction of the times when the filter performs satisfactorily under different conditions, in many other applications the performance for estimation and prediction of extremes, such as floods, droughts, algal blooms, etc., may be of primary importance. Because KF is essentially a least squares solution, it is subject to conditional biases (CB) which arise from the error-in-variable, attenuation, effects when the model dynamics are highly uncertain, the …
Hydrocarbon Pool Fire Performance Of Reinforced Elastomeric Bearing Pads, Shashank Malal
Hydrocarbon Pool Fire Performance Of Reinforced Elastomeric Bearing Pads, Shashank Malal
Civil Engineering Theses - Archive
Bearing pads are used as support for bridge girders to transfer the reaction forces to the substructure. They are designed to accommodate high axial loads from girder, shear deformations due to lateral thermal expansion of girder, and rotational deformation. Apart from these deformations bearing pads may also be subjected to thermal stresses due to daily temperature variations and extreme events like fire hazard. Current design methods do not account for these thermally induced stresses in elastomeric bearing pads. The objective of this research is to study the hydrocarbon pool fire performance of elastomeric bearing pad. This research has three parts. …
Investigation And Proposed Remedy Of Vibration Problem In Industrial Crane System Due To Human Operation, Dustin C. Lorance
Investigation And Proposed Remedy Of Vibration Problem In Industrial Crane System Due To Human Operation, Dustin C. Lorance
Civil Engineering Theses - Archive
A recent investigation of a crane system began when a facilities manager reported a runway beam under-going torsional vibration during operations. The investigation revealed the runway beam’s twisting was caused by resonance vibration due to “inching” of the crane hoist. A Fourier spectrum analysis revealed that one of the harmonic frequencies of this rhythmical motion coincided very close to the natural frequency of the crane system. The runway beam, although met strength requirements, failed to meet serviceability criteria due to the resonance vibration. Resonance vibration issues due to human activity in crane operation (inching, sway, etc.) is often encountered by …
Performance Of Lime- And Cement- Based Treatments Of Sulfate-Rich Soil Via Rc Testing, Azadeh Asghariastaneh
Performance Of Lime- And Cement- Based Treatments Of Sulfate-Rich Soil Via Rc Testing, Azadeh Asghariastaneh
Civil Engineering Theses - Archive
Chemical treatment of expansive sulfate-rich soils, particularly lime- and cement-based methods, had been rather popular due to their relatively low cost and ready availability. However, over the last few decades, extensively documented pavement failures, mainly caused by excessive heaving and/or shrinkage of lime- and cement-treated subgrades with moderate-to-high sulfate content, have led to thorough investigations to assess the actual feasibility and effectiveness of calcium based stabilizers in sulfate-rich soils. Studies have concluded, with solid experimental evidence, that the calcium present in the chemical stabilizers react with the sulfate and alumina of the treated soil to form Ettringite, an expansive mineral …
Making Public Health Performance Measures For Transportation Accessible To Practitioners, Ziaur Rahman
Making Public Health Performance Measures For Transportation Accessible To Practitioners, Ziaur Rahman
Civil Engineering Dissertations - Archive
Pollutants emitted into the atmosphere from static and mobile sources pose a threat to human health. The detrimental impact associated with air pollution varies by the type of pollutant, the magnitude, frequency and duration of exposure, and the associated toxicity. While stationary sources play an important role in air pollution, motor vehicle exhaust emissions represent the single largest source of regional air pollution in urban areas. Moreover, outdoor physical activity requires an increased oxygen level with an increase in exercise intensity. Research has shown that both the ventilation and deposition fractions increase significantly during outdoor activities, which may lead to …
Integrated Modeling Of Storm Drain And Natural Channel Networks For Real-Time Flash Flood Forecasting And Stormwater Planning And Management In Large Urban Areas, Hamideh Habibi
Civil Engineering Dissertations - Archive
Urban flash flooding is a serious problem in large highly populated areas such as the Dallas–Fort Worth metroplex (DFW). Being able to monitor and predict flash flooding at a high spatiotemporal resolution is critical to mitigating its threats and for cost effective emergency management. In this reserach, a high-resolution flash flood forecast system which operates in real time is developed for DFW using a gridded distributed hydrologic model and high-resolution quantitative precipitation estimates from the DFW Demostration Network of the Collaborative Adaptive Sensing of the Atmosphere (CASA) Program high-resolution X band radars and the National Weather Service (NWS) NEXRAD radar. …
Life Cycle Assessment And Cost-Benefit Analysis Of Landfill Mining At The City Of Denton Landfill, Umme Zakira
Life Cycle Assessment And Cost-Benefit Analysis Of Landfill Mining At The City Of Denton Landfill, Umme Zakira
Civil Engineering Theses - Archive
The concept of landfill mining has evolved the way of transforming the existing landfills from a final waste disposal site to a temporary storage location for the potentially valuable resources. The convergence of the sustainable material management and environmental protection issues have emerged the demand for the feasibility study of the landfill mining both in environmental and economic aspects considering the scope of potential resource recovery. Few studies have been conducted either on the environmental impacts on waste management (especially incineration) and operational options or generalized cost-benefit estimation for landfill mining project. Therefore, the present study aims to evaluate both …
Response Of Unsaturated Soils Under Monotonic And Dynamic Loading Over Moderate Suction States, Aritra Banerjee
Response Of Unsaturated Soils Under Monotonic And Dynamic Loading Over Moderate Suction States, Aritra Banerjee
Civil Engineering Dissertations - Archive
The understanding of the mechanical behavior of the unsaturated soils has been significantly enhanced due to the recent advancement of technology and modifications to the conventional testing devices. However, the implementation of the concepts of unsaturated soil has lagged, mainly due to the risks associated with the development of civil infrastructure based on practically untested theories and the limited reliable prediction methods for compacted, expansive, residual, and collapsible soils, which requires reliable and comprehensive experimental data. Moreover, the tests on unsaturated soils are enormously time consuming and often exorbitantly expensive, which further hinders the use of unsaturated soil mechanics in …
Performance Of Cement Treated Recycled Aggregates Under Wetting-Drying Cycles In Pavement Base, Saif Bin Salah
Performance Of Cement Treated Recycled Aggregates Under Wetting-Drying Cycles In Pavement Base, Saif Bin Salah
Civil Engineering Theses - Archive
Resilient Modulus (MR) is one of the most important stiffness parameter to determine the thickness of a pavement layer (AASHTO 2003 pavement design guideline). Recent studies conducted by researchers on the variability of MR with wetting-drying (WD) and freeze-thaw (FT) cycles show that long-term durability is an important criterion to be considered in designing pavement base with recycled materials. At present, the design procedure does not consider the effect of deterioration of pavement layers due to seasonal variations and limited studies have been conducted to evaluate the effect of environmental deterioration on the reclaimed asphalt pavement (RAP) and recycled crushed …
Effect Of Manure And Enzyme On The Degradation Of Organic Fraction Of Municipal Solid Waste In Biocell, Anuja Sapkota
Effect Of Manure And Enzyme On The Degradation Of Organic Fraction Of Municipal Solid Waste In Biocell, Anuja Sapkota
Civil Engineering Theses - Archive
More than half of total Municipal Solid Waste (MSW) generated is composed of organic degradable waste for developed countries and the percentage is even higher for developing countries. Handling of organic fraction of MSW has always been challenging due to environmental and economic reasons. Among all the MSW management alternatives, Sustainable Biocell concept has potential to solve environmental and economic concerns related to organic waste. This potential of Sustainable Biocell can be enhanced by accelerated decomposition of waste. Accelerated decomposition of organic fraction of MSW can be achieved by the addition of nitrogen rich, macro and micro nutrients such as …
The Study Of Screws Under Bending For Curtain Wall Head And Sill Anchors, Humberto Madero Mcentee
The Study Of Screws Under Bending For Curtain Wall Head And Sill Anchors, Humberto Madero Mcentee
Civil Engineering Theses - Archive
The study of screws under bending is a very important topic for the solution of anchors (connections) of the vertical members of a Curtain Wall or Storefront that connects top and bottom thru Head and Sill anchors. When there are shims that create a gap between the connected anchor and the structure that connects to, the screws connecting the anchor to the structure would be under bending; very few or any tests are available showing the capacity of a screw under bending; this thesis would present tests and theory of screws under bending, and discussion/clarification of the behavior of these …
Applications Of Ultra-High Performance Fiber-Reinforced Concrete On Flexural Structural And Architectural Members, Venkatesh Babu Kaka
Applications Of Ultra-High Performance Fiber-Reinforced Concrete On Flexural Structural And Architectural Members, Venkatesh Babu Kaka
Civil Engineering Theses - Archive
This thesis presents the test results of a study on flexural and shear behavior of Ultra-High-Performance Fiber-Reinforced concrete (UHP-FRC) beams, reinforced with Grade 60 steel (ASTM A615/A615M), Grade 100 steel (ASTM A1035/A1035M) and Basalt fiber reinforced polymer (BFRP) bars. Ultra-high-performance fiber-reinforced concrete (UHP-FRC) has high compressive strength (> 22 ksi (150 MPa)) and exceptional compressive ductility. The use of UHP-FRC provides new opportunities for future infrastructure. However, structural design criteria have not been developed to fully utilize UHP-FRC’s excellent mechanical properties. Maximum useable compressive strain, ecu, specified in the current design codes (ACI 318 Building Code and AASHTO LRFD Bridge …
A Comparison Of Smart City Indicators For Three Top Ten Us Cities, Rasoul Adnan Abbas
A Comparison Of Smart City Indicators For Three Top Ten Us Cities, Rasoul Adnan Abbas
Civil Engineering Theses - Archive
The world population has been increasing each year, and the immigration from rural to urban cities has increased as well. The United Nations has estimated that more than 66% of people worldwide live in urban area, and this urbanization trend will continue to increase, thereby generating challenges to the cities as they strive to provide health care, schools, and transportation. The urban population explosion has also caused problems to the environment and overall urban economy as the need for more housing, jobs, and community services require smart solutions. The term, smart city, has many definitions, but all of them agree …
Investigation Of Reuse Of Coal Fly Ash To Mitigate Landfill Methane Gas, Amin Homaei
Investigation Of Reuse Of Coal Fly Ash To Mitigate Landfill Methane Gas, Amin Homaei
Civil Engineering Theses - Archive
Methane (CH4) is a powerful greenhouse gas (GHG), contributing 32% of current climate forcing (US EPA, 2015). In 2014 the White House released the “Strategy to Cut Methane Emissions” as part of the Climate Action Plan. Landfills are one of the strategy’s 4 key sectors, contributing 18% of US methane emissions (US EPA, 2013). Even when landfills capture methane and burn it to produce electricity, around 25% of methane still leaks through landfill covers (US EPA, 2005). In natural environments, iron oxides, manganese oxides, nitrates, and sulfates have been shown to stimulate microbial anaerobic oxidation of methane (AOM) (Sivan et …
Structural Competency And Environmental Soundness Of The Recycled Base Materials In North Texas, Mohammad Faysal
Structural Competency And Environmental Soundness Of The Recycled Base Materials In North Texas, Mohammad Faysal
Civil Engineering Dissertations - Archive
Aggregates, which are derived from natural resources, are the most important raw materials used in pavement construction; however, depletion of the natural resources, increasing labor costs, and environmental concerns have led us to look for alternatives. Recycled materials, such as recycled crushed concrete aggregate (RCCA) and reclaimed asphalt pavement (RAP), can be used as an alternative to natural aggregates and can be obtained from construction of newer structures and demolition of existing structures, such as buildings, bridges, pavement, etc. Recycled materials can reduce the cost, depletion of natural resources, and construction debris. The properties of recycled materials are source-dependent, which …
Development Of A New Joint System For A Circular-Shaped Infrastructure, Sugyu Lee
Development Of A New Joint System For A Circular-Shaped Infrastructure, Sugyu Lee
Civil Engineering Dissertations - Archive
This dissertation focused on development of new carbon fiber joint systems for all types of underground gravity and sewer pipe systems. Specifically, the external CFRP wrap and, particularly, the carbon fiber reinforced polymer (CFRP) internal coupler can be used for concrete pipes with regular or reduced wall thicknesses. The concrete pipes with reduced wall thickness are classified as semi-rigid pipe and are referred to as thin-wall (TW) concrete pipe. The performance of the CFRP coupler is presented in this report based on full-scale experimental tests and three dimensional non-linear finite element studies for regular and thin wall pipes. Finally, design …
Long-Term Shear Investigation Of Polypropylene Fiber-Reinforced Concrete Beams, Michael Daniels
Long-Term Shear Investigation Of Polypropylene Fiber-Reinforced Concrete Beams, Michael Daniels
Civil Engineering Dissertations - Archive
This study investigates the long-term influence of polypropylene fibers on the shear strength and failure behavior of longitudinally reinforced concrete beams, with or without stirrups, subjected to accelerated aging conditions. For this study, 32 large scale short beams with different volume fractions of polypropylene fibers were casted and tested in the Civil Engineering Laboratory Building (CELB) at the University of Texas at Arlington: (1) Control reinforced concrete beams (RC); (2) Reinforced concrete beams with minimum stirrups (RCS) according to ACI 318; (3) Synthetic fiber-reinforced concrete beams with Vf=0.5% (SNFRC 0.5%), which correspond to 7.67 lbs./yd3 (4.55 kg/m3)’; and (4) Synthetic …
A Comprehensive Resilience Framework For The Seismic Evaluation Of Hydraulic Fill Dams In North Texas, Santiago R. Caballero
A Comprehensive Resilience Framework For The Seismic Evaluation Of Hydraulic Fill Dams In North Texas, Santiago R. Caballero
Civil Engineering Dissertations - Archive
Hydraulic filling is a construction procedure that was used for earthen structures during the mid-1800s to the early 1900s; however, dams and levees that were constructed by implementing this technique had a significant potential for geotechnical hazards. Historically, most of the failures of these structures were a result of the soil cyclic liquefaction phenomenon. This phenomenon occurs when excess pore water pressure develops during cyclic loading and causes loss of effective strength in the soil. The cyclic stress approach is one of the methods widely used to assess cyclic liquefaction; however, seismic parameters (loading conditions) and soil characterization (liquefaction resistance) …
Development Of Cone Testing Device For Improved Deep Foundation Design Protocols, Hai Minh Nguyen
Development Of Cone Testing Device For Improved Deep Foundation Design Protocols, Hai Minh Nguyen
Civil Engineering Dissertations - Archive
A novel cone penetration test device, the P-cone, has been developed to assist in deep foundation design and this P-cone device combines features of CPTU cone sounding technologies with capabilities to perform bidirectional loading at a given soil depth condition. Using two independent systems, the P cone measures shear stress versus movements of cone shaft and stress versus penetration of the cone tip at desired depths. The P-cone can also improve the penetration depth and offer a potential application for the in situ consolidation test. Laboratory experiments of the P-cone device were successful beyond the expectation. P-cone Tests performed on …
Toward High-Resolution Flood Forecasting For Large Urban Areas - New Solutions For 1d Routing, Behzad Nazari
Toward High-Resolution Flood Forecasting For Large Urban Areas - New Solutions For 1d Routing, Behzad Nazari
Civil Engineering Dissertations - Archive
The ability to forecast flow, depth, and velocity in flooding events is one of the most important needs in highly populated urban areas. Urbanization and climate change highlight the necessity to understand and accurately predict water-related hazards in urban areas due to extreme precipitation. Towards that end, this study initially assesses the impact of changes in precipitation magnitude and imperviousness on urban inundation in a flooding prone urban catchment in the Dallas-Fort Worth Metroplex. Consequently, this study focuses on identifying potential alternatives to the conventional inundation models to improve operational viability of real-time flood forecasting in urban areas by downscaling …
Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 1. Theory And Different Model Concepts, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig
Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 1. Theory And Different Model Concepts, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig
Civil Engineering Faculty Publications - Archive
Evaporation is an important component of the soil water balance. It is composed of water flow and transport processes in a porous medium that are coupled with heat fluxes and free air flow. This work provides a comprehensive review of model concepts used in different research fields to describe evaporation. Concepts range from nonisothermal two-phase flow, two-component transport in the porous medium that is coupled with one-phase flow, two-component transport in the free air flow to isothermal liquid water flow in the porous medium with upper boundary conditions defined by a potential evaporation flux when available energy and transfer to …
Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 2. Numerical Analysis, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig
Heat And Water Transport In Soils And Across The Soil-Atmosphere Interface: 2. Numerical Analysis, Jan Vanderborght, Thomas Fetzer, Klaus Mosthaf, Kathleen M. Smits, Rainer Helmig
Civil Engineering Faculty Publications - Archive
In an accompanying paper, we presented an overview of a wide variety of modeling concepts, varying in complexity, used to describe evaporation from soil. Using theoretical analyses, we explained the simplifications and parameterizations in the different approaches. In this paper, we numerically evaluate the consequences of these simplifications and parameterizations. Two sets of simulations were performed. The first set investigates lateral variations in vertical fluxes, which emerge from both homogeneous and heterogeneous porous media, and their importance to capturing evaporation behavior. When evaporation decreases from parts of the heterogeneous soil surface, lateral flow and transport processes in the free flow …
Shear Investigation Of Polypropylene Fiber-Reinforced Concrete Beams, Ehsan Navadeh
Shear Investigation Of Polypropylene Fiber-Reinforced Concrete Beams, Ehsan Navadeh
Civil Engineering Theses - Archive
This study investigates the effect of macro-synthetic polypropylene fibers on the shear strength and failure behavior of longitudinally reinforced concrete beams with and/ or without transverse reinforcement. Eight large-scale were constructed, cured and tested at Civil Engineering Laboratory Building (CELB). This includes flexural reinforced concrete beams without transverse reinforcement (RC), reinforced concrete beam with minimum transverse reinforcement (RCS), 0.5% volume macro-synthetic polypropylene fiber-reinforced concrete beams without stirrups (SNFRC 0.5%), and 0.75% macro-synthetic polypropylene-fiber reinforced concrete beams without stirrups (SNFRC 0.75%). During production of large-scale beams, 19 Cylinders and 9 small-scale beams were produced from the same mix-design and cured for …
Effect Of Tio2/Uv-Led Operational Parameters On The Degradation Of Pharmaceuticals In Water, Burhanuddin Khuzema Zaveri
Effect Of Tio2/Uv-Led Operational Parameters On The Degradation Of Pharmaceuticals In Water, Burhanuddin Khuzema Zaveri
Civil Engineering Theses - Archive
The presence of pharmaceutical residues in water resources has alarmed water and health authorities. Among many treatment technologies for pharmaceuticals, ultraviolet (UV)-based oxidation has gained significant attention because it is capable of decomposing a variety of recalcitrant and toxic chemicals. As an alternative UV source to problematic conventional mercury lamps, light-emitting diode (LED) has shown many advantages for water treatment applications, so-called UV-LED. The overall goal of this study is to evaluate the high potential of the UV-LED technology to treat water contaminated with pharmaceuticals including sulfamethoxazole, ibuprofen, and triclosan. In particular, important operational parameters were investigated, including UV wavelength, …
Effect Of Manures On Food Waste Degradation In Biocell, Md Nur Basit Zaman
Effect Of Manures On Food Waste Degradation In Biocell, Md Nur Basit Zaman
Civil Engineering Theses - Archive
Proper disposal of food waste is a challenge due to adverse effect on the environment through generation of excessive leachate and greenhouse gas (CH4). After food loss through the food supply chain, the food waste ends up mostly in landfills. A study by EPA showed food waste to be the second largest component found in landfill. However, food waste imposes major cost on landfill management, and demands a potential alternative disposal solution that can negate the adverse effects. Though anaerobic digester and composting are possible solutions for food waste disposal, the former is highly expensive while in later solution, a …