Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 308 for “"bench-scale"”.
-
Bench Scale Characterization of Joints and Coatings
The ASTM E119 is a large-scale test used to qualify assemblies for fire resistance, including heat transmission and structural integrity. The test requires specialized furnaces and full-scale assemblies that are 3.0 m (10 ft) or more on each side, making it very expensive to perform. In this study, …
-
Bench-scale fire toxicity measurements of polymers and cables
… based on obtaining a better understanding of bench-scale techniques and their limitations for fire toxicity assessment including closed box test (NBS Smoke Density Chamber) and flow-through tests such as the steady state tube furnace (ISO TS 19700). Toxicity results for several different …
-
Bench-scale study of chemically enhanced primary treatment in Brazil
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
-
Bench-scale two-dimensional fluidized bed hydrodynamics and struvite growth studies
A bench-scale, two-dimensional multi-compartmentalized fluidized reactor was designed and studies of hydrodynamic behavior of fluidization of struvite pellets were performed. Also size growth distribution tests were analyzed qualitatively. The study validated a previously-proposed theory, …
-
Wastewater Treatment and Nitrogen Removal in Bench-Scale Photobioreactors Operated with Solids Recycling
… removal, and algal-bacterial productivity in bench-scale photobioreactors (PBRs) simulating winter pond conditions in San Luis Obispo, California and a 6-acre raceway system in Delhi, California. Two sets of duplicate photobioreactors operated with or without solids recycling were fed primary …
-
Flash calcination of limestone in a bench-scale sorbent activation process (SAP) unit
… (DSI) applications. In this research, a bench-scale SAP unit (2 kg/hr limestone feed rate) was used to prepare quicklime from two limestone samples. The impacts of particle size, surface morphologies of limestone, and operating parameters of SAP including temperature profile, and …
-
Evaluation of Nitrification Inhibition Using Bench-Scale Rate Measurements, Profile Sampling, and Process Simulation Modeling
… include influent sampling and the operation of bench-scale sequencing batch reactors. This will be used to establish "normal" COD, nutrient and DO profiles though the VIP process without (and possibly with) the impact of inhibitory conditions, specifically with respect to N conversions and P …
-
Bench-scale modeling to evaluate the mechanical effects of subsidence on a monofill-type landfill cover
A bench-scale model was developed to simulate the effects of subsidence on compacted monofill-type landfill covers for the low-level radioactive waste landfills of the Radioactive Waste Management Sites of the Nevada Test Site. Of particular interest is the collapse mechanism of the cover with …
-
Design and application of a bench scale evaporator for the treatment of coal power plant waste water
The potential of scale formation during the application of Multi-Effect Distillation (MED) technology for the treatment of Reverse Osmosis (RO) retentate was investigated in this study. An improved bench scale single effect evaporation unit was designed using the Solidworks Simulation Package and …
-
Bench-scale evaluation of an energy efficient acoustic aerosol purification device with a newly designed bioaerosol testing and evaluation chamber
… also achieving high operational stability. A bench-scale test chamber has been designed, assembled, and validated for the evaluation of operational characteristics of novel LPD filtration technologies at flow rates up to 50 CFM (1.4 m3/min) including removal efficiency, pressure drop, and …
-
Bench Scale Analysis Of Experimental Fouling-resistent Low Pressure Reverse Osmosis Membranes Using High Organic Surface Water And Synthetic Colloidal Water
The utilization of membrane treatment for the production of potable water has become more prevalent in today's industry. As drinking water regulations become more stringent this trend is expected to continue. Widespread use is also a result of membrane treatment being the best available treatment …
-
The effect of polymer dose and mixing intensity on sludge dewatering with a plate and frame filter press
… and polymer mixing conditions. In addition, bench-scale polymer dosing and mixing experiments were conducted with the same sludge samples to determine the relationship between the bench-scale tests and actual plate and frame filter press performance. Dewatering rate was measured in bench- …
-
Laboratory evaluation of conditioning requirements for sludge dewatering using belt filter press
… of this study were to develop a reliable bench-scale testing procedure to adequately predict polymer conditioning requirements for full-scale belt filter presses, and to determine the additional polymer demand exerted by applied pressure during the expression stage of a dewatering process. …
-
Precombustion Removal of Hazardous Air Pollutant Precursors
… This thesis details the findings of a bench-scale test program that was implemented to evaluate the capabilities of physical coal cleaning technologies on the removal of trace elements from coal. Test work was completed on Pittsburgh No. 8 seam coal that was processed using physical …
-
Colloidal magnetic fluids as extractants for chemical processing applications
… successfully with experimental results from a bench-scale HGMS column. Permanent capture of individual nanoparticles is limited by diffusion away from the wires; however, 60-125 nm aggregates of particles can be captured permanently in the bench-scale column. The model provided estimates of the …
-
Investigation of the Effects of Sequential Anaerobic, Anoxic and Aerobic Zones on Dissolved Oxygen Transfer Parameters in a biological Nutrient Removal Pilot Plant
Bench and pilot scale determinations of the volumetric oxygen transfer coefficient, K<sub>L</sub>a, were performed on an improved A²/O biological nutrient removal (BNR) pilot plant. Effluent from a full scale primary clarifier, used as pilot plant influent, was found to have an alpha (ratio of …
-
The evaluation of metham sodium and dichlobenil impacts on activated sludge nitrification
… Vaporooter II process were separately tested in bench scale reactors. Metham sodium was found to be the herbicide responsible for disrupting nitrification. It did so at concentrations of 4 mg/L or higher in systems which have a mixed liquor volatile suspended solids concentrations of 1800 mg/L. …
-
Development of Instrumental and Computational tools for investigation of polymer flammability
… is the development and utilization of the microscale combustion calorimeter (MCC) and how it helps us understand the flammability of materials. A reproducible way to quantitatively assess material flammability was needed. The simplest approach is based on the molecular structure of a material to …
-
Predicting dewatering equipment performance from laboratory tests
… to evaluate the dewatering characteristics of a bench-scale belt filter press and a full-scale screw press, and to develop a suitable bench-scale test to simulate dewatering in a full-scale screw press. Tests were conducted to determine the effect of pressure and shear on dewatering of …
Page 1 of 16