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 11 of 11 for “"municipal wastewaters"”.
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Local marine wastewater discharges : characterisation and impacts
Raw municipal wastewaters from the three major sewage pumping stations in the Maltese Islands were sampled three times daily over a 7-day period in August-September 2002 so as to identify levels of suspended matter, nutrients (nitrates, nitrites, orthophosphates and total phosphorus), and …
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Dynamics of Simultaneous Nitrite Ion and Ammonia Chlorination in Complex Water Quality Matrices and their Impact on Chlorine Residual Speciation during Disinfection
… encountered during biological nitrification of municipal wastewaters. The spatial variation of the nitrogen species generates unpredictable complications in the effectiveness of chlorination as the disinfection process. The focus of the research study was the examination of chlorine residual …
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Verification of the bisubstrate concept in modelling of the activated sludge process
… were compared with the "standard" constants for municipal wastewaters.
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Removal Of Refractory Tkn From An Effluent Wastewater Using Sodium Ferrate
… the levels of nitrogen present in effluent wastewaters. Ferrate, a strong oxidant, was used for the treatment of these nitrogen forms with the objective of producing nitrogen compounds that can be removed by subsequent biological processes. Bench-scale experiments were performed on effluent …
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Trace metals in upper Susquehanna River ecosystem: environmental distribution, urban impacts, and interaction with sediment materials
… Basin [river water (RW) and bottom sediments, municipal wastewaters and sewage sludge, algae and fish] were collected and analyzed for the following Trace Metals (TMs), as appropriate: Pb, Cd, Co, Ni, Cr, Cu, Zn, and total and inorganic Hg. The median and range of TMs found in RW samples help …
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Investigating human pharmaceutical compounds present in municipal and hospital wastewaters and options for their removal
… the highest influent concentrations measured in municipal wastewater treatment plants (MWWTPs) were for paracetamol, naproxen and bezafibrate (> 1 μg/L), followed by carbamazepine, atenolol, lidocaine, sulfamethoxazole and NACS (<1 μg/L). In hospital wastewater treatment plants (HWWTPs), the …
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Quantitative analysis of anaerobic and phototrophic treatment technologies to advance resource recovery from wastewaters
… These problems underlie a need to re-envision municipal wastewaters as a renewable resource for nutrients and energy while continuing to hold human and environmental health paramount. This research addresses a critical barrier to technological advancement and adoption of mainline anaerobic and …
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Natural zeolitites in combination with struvite precipitation technology for the recovery of nutrients from agricultural wastewaters
… start turning the perception of “nutrient-rich wastewaters”, from “wastes” to dispose of, to “resources”, useful for plant nutrition, but, despite this, 80% of municipal wastewaters globally produced are still discarded in the environment, without having been subjected to any treatment. On the …
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Pharmaceutical occurrence, distribution and degradation in rural wastewaters and surface waters in Scotland
… distribution and degradation in rural wastewaters and surface waters in Scotland. The aim was carried out through: (i) comprehensive literature review; (ii) target compound selection; (iii) characterisation of hospital wastewater and its impact on pharmaceutical concentrations in a …
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Selection of bacterial species from wastewater for potential production of poly (γ-glutamic acid): isolation, characterisation and growth kinetics
… time to harness the value in these resources. Wastewaters are a source of nutrients such as carbon, nitrogen and phosphates. Macronutrients typically comprise the major share of the operating costs of commodity bioprocesses, such as the production of alcohols, organic acids and polymers. The …