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Articles 1 - 5 of 5
Full-Text Articles in Engineering
Research Of Rheological Properties And Filtrability Of Suspension In The Production Of Potassium Hydroxide By Calcareous Method, Behzod Begmatovich Turakulov, Aktam Ulashevich Erkayev, Baxrom Xayrievich Kucharov, Zokir Kalandarovich Toirov, Akhmed Maksetbaevich Iskenderov
Research Of Rheological Properties And Filtrability Of Suspension In The Production Of Potassium Hydroxide By Calcareous Method, Behzod Begmatovich Turakulov, Aktam Ulashevich Erkayev, Baxrom Xayrievich Kucharov, Zokir Kalandarovich Toirov, Akhmed Maksetbaevich Iskenderov
Chemical Technology, Control and Management
The problems of the production of potassium hydroxide from local raw materials of Uzbekistan are considered. The methods for producing potassium hydroxide are analyzed. The rheological properties of the intermediate solutions and suspensions formed in the process of obtaining potassium hydroxide by the calcareous method have been investigated. The optimal technological parameters of the process — the content of potassium hydroxide in the liquid phase, the ratio of the solid and liquid phases and the concentration of the washing solution were established to achieve the maximum filtration rate. The effect of the amount and concentration of washing water on the …
Understanding The Interplay Between Fluid Mechanics And Particle Size Distributions For Filtration Of Flocculated Mixtures, Brooke Remler
Understanding The Interplay Between Fluid Mechanics And Particle Size Distributions For Filtration Of Flocculated Mixtures, Brooke Remler
Electronic Thesis and Dissertation Repository
The breakdown of nutrients in biological processes in wastewater treatment require a sub- stantial amount of energy, contributing to greater greenhouse gas (GHG) emissions. Floc- culation can be used to reduce the loading on a biological process by increasing removals during primary treatment in devices such as a rotating belt filter (RBF). The relationship between shear conditions, defined by velocity gradients (G-values) and floc size is crucial. Understanding G-value magnitudes and distributions within an RBF, corresponding trans- port network, and the effects on floc size degradation are needed to maximize removals. G-values were calculated using a newly developed approach, improving …
Influences Of Catchment And River Channel Characteristics On The Magnitude And Dynamics Of Storage And Re-Suspension Of Fine Sediments In River Beds, Jungsu Park, Ramon J. Batalla, François Bírgand, Michel Esteves, Francesco Gentile, Joseph R. Harrington, Oldrich Navratil, José Andres López-Tarazón, Damiá Vericant
Influences Of Catchment And River Channel Characteristics On The Magnitude And Dynamics Of Storage And Re-Suspension Of Fine Sediments In River Beds, Jungsu Park, Ramon J. Batalla, François Bírgand, Michel Esteves, Francesco Gentile, Joseph R. Harrington, Oldrich Navratil, José Andres López-Tarazón, Damiá Vericant
Publications
Fine particles or sediments are one of the important variables that should be considered for the proper management of water quality and aquatic ecosystems. In the present study, the effect of catchment characteristics on the performance of an already developed model for the estimation of fine sediments dynamics between the water column and sediment bed was tested, using 13 catchments distributed worldwide. The model was calibrated to determine two optimal model parameters. The first is the filtration parameter, which represents the filtration of fine sediments through pores of the stream bed during the recession period of a flood event. The …
Developments Towards High-Flux Silica Nanosphere Substrates To Support Conforming Self-Assembled Gold Nanoparticle Monolayers For Applications In Size-Selective Filtration, Ryan Baker Vincent
Developments Towards High-Flux Silica Nanosphere Substrates To Support Conforming Self-Assembled Gold Nanoparticle Monolayers For Applications In Size-Selective Filtration, Ryan Baker Vincent
Theses, Dissertations and Capstones
Hydrophobic thiol coated gold nanoparticles have recently been investigated for their ability to self-assemble into robust, ultra-thin, porous membranes at a liquid-vapor interface. Due to the well-ordered, hexagonal close-packed nanoparticle arrays formed during the self-assembly process, these 2-dimensional sheets have very well-defined pore structures and have been shown to span gaps of several microns under ideal conditions. While these self-assembled nanoparticle monolayers have very promising applications in the field of size-selective filtration due to their well-defined pore structure, they need to be supported by a rigid substrate with a large amount of open area. Here, tightly packed arrays of silica …
Prevention Of Harmful Algal Blooms By The Mitigation Of Phosphorus Nutrient Loading Via Filtration By Steel Wool And Activated Carbon, Ronald Simpson, Sara Kidd, Samantha Zidd
Prevention Of Harmful Algal Blooms By The Mitigation Of Phosphorus Nutrient Loading Via Filtration By Steel Wool And Activated Carbon, Ronald Simpson, Sara Kidd, Samantha Zidd
Williams Honors College, Honors Research Projects
Harmful Algal Blooms (HABs) are a devastating ecological and economic consequence of the abundance of nutrient-rich agricultural runoff entering aquatic ecosystems (Baker et al. 2014). Bio-available phosphorus from synthetic fertilizers is one of the major nutrients contributing to this global issue. Previous studies indicated that dissolved phosphorus can be removed from an aqueous environment when passed through a composite mixture of granular steel wool particles and activated carbon (Erickson, Gulliver, and Weiss, 2007). In this project, we conducted experiments using higher quality concentration measurements to determine what grades of steel wool (SW-0000, SW-000, SW-00) and types of activated carbon (granulated …