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 707 for “"water treatment"”.
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Water treatment analysis guide
The treatment of water up to potable/drinkable standards is a complex process, with many variables and parameters impacting on each other. In South Africa drinking water delivered to consumers must meet the requirements as recorded in the South African National Standards (SANS). Today, more so than …
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Sustainable Hydrogels for Water Treatment
A major challenge in water treatment today is the elimination of micropollutants, including low-concentration emerging contaminants like PFAS and heavy metals like lead. Existing technologies like activated carbon adsorption fail to eliminate these contaminants due to their chemical diversity and …
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Non-thermal plasma for water treatment
Plasma generated in contact with water has been extensively investigated in various electrode geometries and various discharge types for water treatment, of which the applications have been employed industrially on different scales. The reactive species such as OH radicals, O3, H2O2 and HO2 can be …
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Metal-organic frameworks for water treatment
… application of metal-organic frameworks in waste water treatment and the synthesis of new metal-organic frameworks.<br/><br/>Chapter one gives a general overview of water-treatment processes, the methods and materials used in these processes, and also the structures and properties characteristics …
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MIB Adsorption in Drinking Water Treatment
It was observed that chlorine had a deleterious effect on the ability of both PAC and GAC to adsorb MIB. From this, it was encouraged to avoid contacting activated carbon with chlorine.
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Cloth Filter for Disaster Relief Water Treatment
… and governments strive to provide safe drinking water to natural disaster survivors as quickly as possible. However, drinking water is typically provided either as bottled water or via mobile water treatment equipment, both of which can be difficult or expensive to transport rapidly into disaster …
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Ozone-bromide-NOM interactions in water treatment
Ozonation (O$\sb3$) of waters containing bromide (Br$\sp{-}$) results in Br$\sp{-}$ oxidation to first hypobromite ion (OBr$\sp{-}$) and its conjugate acid (HOBr), and eventually bromate (BrO$\sb{3\sp{-}}$), a suspected carcinogen. Natural organic matter (NOM) reads with HOBr/OBr$\sp{-}$ to form …
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Effects of water treatment on pesticides in freshwaters.
… was to evaluate the effectiveness of various water treatment processes for the removal of selected pesticides from freshwaters. Of particular interest were the herbicides likely to contaminate water courses used for potable water supplies in Grampian Region. Laboratory based simulation …
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Characterising water treatment works performance using fluorescence spectroscopy
Organic matter (OM) in drinking water treatment is a common impediment responsible for increased coagulant and disinfectant dosages, formation of carcinogenic disinfection-by products (DBPs), and microbial re-growth in distribution system. The inherent heterogeneity of OM implies the utilization of …
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Development of Synthetic Nanofiltration Membranes for Water Treatment
Embargo set by: Seth Robbins for item 85568 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Effects of storage on water treatment plant sludges
… on the iron, manganese, and TOC removal of water treatment plant (WTP) clarifiers and on the dewatering characteristics of sludge were examined. The use of chlorine dioxide as a preoxidant to retard observed detrimental effects was also investigated. Sludge samples that were stored over a …
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Iron recovery from a representative water treatment plant sludge
Water treatment plant sludge disposal has become a timely problem to consider. While many methods of sludge treatment and disposal have been suggested, coagulant recovery may prove to be the most economical. This investigation was concerned with recovery of iron coagulant by chemical addition. …
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Optimal control of a biological waste-water treatment plant
… of minimizing concentration of contaminated water at terminal time T is stated and solved. Optimal solutions are obtained analytically with the use of Pontryagin's Maximum Principle.
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Nanotechnology and Biotechnology for Water Treatment: A Comparative Study
… world’s population does not have access to clean water and about 1.6 million deaths are caused by contaminated water annually. Even though there are several drinking water treatment technologies available today, they are not widely distributed or suitable for all types of water contamination …
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Point-of-Use Water Treatment Device for Disaster Relief
<p>A point-of-use water treatment device and an optimal method for its use were developed. The specially-designed vessel is to be used with flocculation and disinfection agents, while also providing for clean water storage. Possible applications would be disaster relief, emergency preparedness, and …
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Appropriate water treatment for the Nyanza Province of Kenya
… Nyanza Province of Kenya to reduce the rate of waterborne diseases. In 2002, CDC partnered up with the Society for Women and AIDS in Kenya (SWAK), a local NGO, to implement safe water treatment in SWAK-affiliated communities. SWAK is seeking ways to improve and expand sales of safe water …
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Water Treatment: Fundamentals and Practical Implications of Bubble Formation
Water utilities can experience problems from bubble formation during conventional treatment, including impaired particle settling, filter air binding, and measurement as false turbidity in filter effluent. Coagulation processes can cause supersaturation and bubble formation by converting …
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The effect of various oxidants on water treatment processes
The effects of four oxidants upon water treatment process parameters were investigated. The four oxidants under consideration were ozone, chlorine dioxide, potassium permanganate, and chlorine, Experimentation was directed towards the impact of these oxidants upon turbidity, TOC, and color removal, …
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