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.
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Showing 1 to 12 of 12 for “"Water--Softening"”.
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Making Water Pure: A History of Water Softening From Potash to Tide
Making Water Pure: A History of Water Softening from Potash to Tide, is a history of water softening in the United States from 1860 through 1970. Water’s materiality, specifically its tendency to dissolve geological features, consistently interfered with labor processes, especially those that …
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Selective electrochemical separation of cations for rare earth element recovery and water softening
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01
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Nickel hydroxy-carbonate precipitation in a pellet reactor
… in pellet reactors was developed primarily for water softening purposes, and then extended in the Netherlands in a research context to heavy metal recovery from stream concentrations varying from 10 to 10 000ppm. The metals include copper, iron, lead, manganese, nickel and zinc. The potential …
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A comparison of the East Lansing, Michigan zeolite water treatment plants
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1941
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A systematic review of treatments for atopic dermatitis
… subjected to RCTs, such as occlusive dressings, water softening devices and stress management among many others.
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Environmentally Sustainable Mining: Reusable Zeolite for Sodium Mitigation from Potash Brine Impacted Groundwater
… however, the risk to surrounding soil and groundwater from the highly saline waste solution is a significant concern. Zeolites, specifically clinoptilolite-rich zeolites, have drawn significant attention as a viable and cost-effective treatment method for contaminated solutions. Zeolite has been …
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Nanoporous monolayer graphene membranes for water purification : from concept to realization
… a new class of highly permeable membranes for water purification and desalination. Though atomically thin, graphene exhibits both exceptional mechanical strength and imperviousness to atoms as small as helium. High-density, subnanometer pores within graphene have the potential for ultra-fast …
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Layer by Layer, Nano-particle "Only" Surface Modification of Filtration Membranes
… but exhibiting in common that wicking of water does not readily occur into the pore structure, including polycarbonate track etched (PCTE), polyethersulfone (PES) and sulfonated PES (SPEES) MF/UF membranes. Both spherical (cationic/anionic) and eccentric elongated (anionic) silica …
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Design of advanced reverse osmosis and nanofiltration membranes for water purification
… are being developed from polyimides for water and wastewater treatments. The following three projects have resulted from my research. (1) Positively charged and solvent resistant NF membranes. The use of solvent resistant membranes to facilitate small molecule separations has been a long …
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Modeling low-pressure nanofiltration membranes and hollow fiber modules for softening and pretreatment in seawater reverse osmosis
… impact of RO by decreasing the amount of water to be treated per unit volume of water produced, and reducing the volume of RO brine to be managed. This can potentially curb the CO2 emissions resulting from the RO desalination process. A novel class of low-pressure nanofiltration (NF) …
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A novel standardized assessment for the new end uses of recycled water schemes
Nowadays, recycled water has provided sufficient flexibility to satisfy short-term freshwater needs and increase the reliability of long-term water supplies in many water scarce areas. It becomes an essential component of integrated water resources management. However, the current applications of …
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Effects of Scale Reduction Technologies and Chemical Inhibitors on Calcium Precipitation in Premise Plumbing Systems
… (electric and gas) and tank-less building hot water systems. Scaling can cause energy inefficiencies, flow reduction, pressure loss, and erosion corrosion damage. Consumers are also concerned with unsightly soap scum, cloudy water, discolored glassware, and failing infrastructure including …