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 20 of 165 for “"Chlorination"”.
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The chlorination of sulfate lignin
… purpose of this investigation was to study the chlorination reaction of lignin obtained from the black liquors of the sulfate process of paper manufacture. Results of preliminary experimental work indicated that the optimum method of chlorinating lignin was by suspending or dissolving the lignin …
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Regioselective chlorination of cellulose esters
… to bromination of cellulose typically used, this chlorination method has many advantages, including low cost of reagents and ease of separation. The chlorinated cellulose esters are useful intermediates for appending new functionalities by displacement reactions. We have synthesized a library of …
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Chlorination of Titanium Oxycarbide and Oxycarbonitride
The project undertook a systematic study of chlorination of titanium oxycarbide and oxycarbonitride with the aim to develop further understanding of kinetics and mechanisms of the chlorination reactions. The project studied titania, ilmenite ores, and synthetic rutile reduced by carbon in argon and …
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A study of the chlorination of milk
Thesis (M.A.)--University of Kansas, Bacteriology, 1929.
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The Chlorination of Triclosan: A Kinetic Study
Triclosan, 5-chloro-2-(2,4 dichlorophenoxy)phenol, is an anti-microbial additive in a plethora of Pharmaceutical and Personal Care Products (PPCPs) including, toothpastes, hand creams and soaps, and acne creams. Because many triclosan containing products are topical solutions that are readily …
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The effect of selected organics on breakpoint chlorination
A synthetic secondary effluent, comprised of an animal feed and distilled water, was chlorinated under the influence of three selected organics: dextrose, phenol, and phenylalanine. The initial ammonia nitrogen and organic compound concentrations were varied. The breakpoint curves and total …
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Development of a small-scale electro-chlorination system for rural water supplies
… thesis, the development of a small-scale water chlorination system that runs on salt and solar panels is described. The system combines a membrane-based hypochlorite generator, or “membrane electrolyser”, with an automated hypochlorite dosing system.The system was designed to (i) coordinate …
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Chlorination disinfection by-products in drinking water and risk of pancreatic cancer.
This thesis studied the effect of chlorination disinfection by-products (CDBPs) in drinking water on the risk of developing pancreatic cancer. The study was based on the case-control component of the National Enhanced Cancer Surveillance System. Incident cases and frequency-matched population …
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Separation of rosin and fatty acids from tall oil by selective chlorination
… and losses as pitch, incurred in distillation. Chlorination is used as a step in the purification of tall oil, or to produce a sticky chlorinated oil, but no separation based on the use of chlorine appears to have been proposed. It was proposed in this investigation to chlorinate the fatty acid …
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The chlorination of midlothian coal to produce a liquid adsorbent active carbon
… from coals. It has been reported that an initial chlorination of a geologically young coal before its carbonization results in a high yield of a good active carbon. The existence of large deposits of such a coal in the Piedmont section of Virginia and North Carolina which has not been exploited to …
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I. Selective Chlorination and Fluorination of Quinols II. Synthetic Study of Strongylophorine-26
… This thesis describes our strategy in selective chlorination and fluorination of quinols to offer the corresponding aromatic structures. Quinols, or cyclohexadienones, as oxidized derivatives of phenols, have their remarkable chemical reactivities, including additions to enone, enolate …
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Household water chlorination for the developing world : a cast study in Lumbini, Nepal
… world and evaluates a pilot study of household chlorination established in January 2001 in Lumbini, Nepal based on the Safe Water System approach. The evaluation of the Lumbini Household Chlorination Pilot Study presented here is based on field visits conducted in Lumbini, Nepal in January 2002. …
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The Chlorination of Pharmaceuticals and Other Phenolic Compounds in the Presence of Iodide
Pharmaceuticals and personal care products (PPCPs) include a wide range of chemicals such as prescription and over-the-counter drugs, fragrances, diagnostic agents, and a litany of other compounds commonly added to household products such as sunscreens, soaps, toothpastes, and deodorants. If …
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Formation of Chloroform and Other Chlorinated Byproducts by the Chlorination of Antibacterial Products
Triclosan is a widely used antibacterial agent found in many personal hygiene products. While it has been established that pure triclosan and free chlorine readily react, interactions between triclosan-containing products and free chlorine have not previously been analyzed. Sixteen double-blinded …
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A study of lethality and toxic mechanisms of intermittent chlorination to freshwater fish
… fish of this type. The toxicity of intermittent chlorination, and the possible interaction with temperature to a warmwater fish, bluegill (Lepomis macrochirus) was investigated with the support of the American Electric Power Corporation. Because relatively little is known about the physiological …
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Influence of Chlorination and the Distribution System on Mutagens in a Potable Water Supply
… disinfection practice from chloramine to chlorination beyond breakpoint at monthly intervals in the summer. We assayed the mutagenicity of the water at weekly intervals and continually through transitions from chloramine to breakpoint and reverse for a period of a year. In general …
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Efficacy of gravity-fed chlorination system for community-scale water disinfection in northern Ghana
… using high-test hypochlorite (HTH) as a viable chlorination option for community-scale drinking water disinfection in Northern Region, Ghana. In addition, this study compares the Pulsar 1 unit to the household treatment of the Kosim filter plus Aquatabs. The Kosim filter is a pot-shaped Potters …
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