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 78 for “"Engineering, Sanitary and Municipal"”.
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Anaerobic co-digestion of municipal solid waste and sewage sludge.
As a solution to the problems of municipal solid waste management, anaerobic digestion possesses the optimal combination of volume reduction, probability of success and potential for both energy and resource recovery. An innovative application of anaerobic processes is the co-digestion of sewage …
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Chlorination disinfection by-products in drinking water and risk of pancreatic cancer.
… Cancer Surveillance System. Incident cases and frequency-matched population controls recruited between 1994 and 1997 from six Canadian provinces were used to estimate pancreatic cancer risks associated with exposure to CDBPs. Residence history collected from subjects was linked to two …
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Quantitative, Comparative Toxicity and Toxicogenomic Analyses of Nitrogenous Drinking Water Disinfection by-Products
… of a chemical reaction between natural and synthetic organic/inorganic materials in the source water and the particular disinfection method being utilized. Using calibrated microplate based mammalian cell assays we were able to utilize small quantities of synthesized DBP compounds and …
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Abiotic and Biotic Perchlorate Removal in an Activated Carbon Filter
… under a broad range of operating conditions and water quality characteristics.
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Using Molecular Signature Methods to Measure the in Situ Physiology of Acinetobacter Spp. In Enhanced Biological Phosphorus Removal Activated Sludge Wastewater Treatment
Herein, we have adapted, developed, and implemented novel technologies from molecular microbial ecology to understand the role of Acinetobacter spp. as a model phosphorus accumulating organisms in biological phosphorus removal. Oligonucleotide hybridization probes targeting the 16S ribosomal …
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Bromamine Decomposition and Cyanogen Bromide Formation in Drinking Water From Monobromamine and Formaldehyde
… is a fast equilibrium reaction. The equilibrium and second order rate constants are 2.5 x 105 M-1 and 6.3 x 104 M-1s-1, respectively. (Abstract shortened by UMI.).
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Characterization of Flow Turbulence Induced by a Bubble-Plume in Large-Scale Experiments
… the main variables (tank geometry, water depth, and air discharge) controlling the induced mixing in the tank. Finally, the extensive set of experimental data was summarized in a set of dimensionless plots which can be used to conduct a preliminary design of coarse-bubble diffuser for reservoir …
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Ideation and Evaluation in Environmental Planning
… substantial quantities of valuable resources and affect a large number of people. The final plan is selected by the decision-maker(s), but the objectives behind the selection are sometimes poorly defined. Since judgements can be affected by an individual's reaction to his surroundings, it is …
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Removing Soluble Organic Contaminants From Water Supplies by Lime Softening
… the types of contaminants that can be taken out and the factors influencing such removal are not well defined. This research was undertaken to investigate the mechanism responsible for the removal of trace organic contaminants by lime softening, to identify the molecular characteristics of …
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Effects of Activated Carbon on Reactions of Free and Combined Chlorine With Phenols (Chlorination, Gac)
… quinones, chlorine substitution, carboxylation, and dimer formation.
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Continuous Thickening of Non-Ideal Suspensions
Made available in DSpace on 2015-05-12T22:37:14Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7212228.PDF: 9355192 bytes, checksum: e65939cdb7a24726e8a2127a5bc62e69 (MD5) Previous issue date: 1971
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Virus Removal by Resinous Sorbents
Made available in DSpace on 2015-05-12T22:37:15Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7511717.PDF: 6745005 bytes, checksum: b356d29bba38e0e2f7fc9d16a05f3826 (MD5) Previous issue date: 1974
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Competitive Adsorption of Organic Compounds From Aqueous Systems Using Active-Carbon
Made available in DSpace on 2014-12-17T21:05:00Z (GMT). No. of bitstreams: 1 7317259.pdf: 3526198 bytes, checksum: 68c2e150425de9c7c401dfac0c90d7cf (MD5) Previous issue date: 1972
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Mathematical Models and Optimization Techniques for Use in Analysis and Design of Wastewater Treatment Systems
The objective of current wastewater treatment plant design practice is to provide a cost effective processing system for a given wastewater. The design of such a system involves many tradeoffs that have to be examined in detail before cost effectiveness can be achieved.
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Evaluation of the Performance of a Charged Droplet Scrubber (Aerosol, Collection)
… examined in terms of the collision efficiency and the adhesion efficiency. Two models, the fixed collector model and the accelerating collector model, were proposed to predicted the collision efficiency. The former finds its application in low-energy scrubbers where the collectors usually fall …
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Mechanism of Inactivation of New Indicators of Disinfection Efficiency by Free Available Chlorine
Made available in DSpace on 2014-12-13T19:31:46Z (GMT). No. of bitstreams: 1 7820950.pdf: 6312357 bytes, checksum: cd8a44fc1f662b0e7f38387d60c0782f (MD5) Previous issue date: 1978
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Mixing for Suspension of Solids
… impeller was used to produce downward flow. Sand, wheat straw, corn stover, activated carbon, and activated carbon-sand mixture were studied in this system. Several concentrations of the wheat straw, corn stover, and activated carbon were examined. The liquid level was equal to one tank …
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The Removal of Low Levels of Phenol by Activated Carbon in The Presence of Biological Activity
… through use of parallel bacterially seeded and non-seeded, non-bioactive columns. Phenol degrading organisms were taken from an enrichment using phenol as sole carbon source. Mass balance calculations on phenol and dissolved oxygen were used to estimate amounts of pre-adsorbed phenol being …
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Methods for Generating Alternative Solutions to Environmental Planning Problems
… to generate planning alternatives that are good and different so that the analyst and the decision maker can examine a wide range of alternatives to gain insight and understanding. Modeling to generate alternatives (MGA) is designed to serve this purpose. Several MGA methods, a random method, a …
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