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 15 of 15 for “"oil and grease"”.
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Kinetics of the electrocoagulation of oil and grease
… produced indication of internal recirculation and stagnant water when the fluid followed a vertical path. These anomalies were attenuated when the fluid flowed horizontally and at a velocity higher than 0.032 m s-1 . A series of EC experiments were performed using a synthetic emulsion with a …
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The measurement of the running torque of oil and grease lubricated instrument ball bearings under combined radial and axial loads
… bearings, most were conducted at two rpm or less and with thrust load only. A study by H.H. Mable tested the running torques of radially loaded bearings from 1,000 to 40,000 rpm. The purpose of this investigation was to study the running torques of R-3 size instrument ball bearings at speeds up to …
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PAH and PCB distribution in sediment fractions and sorptive phases
… sediment on every level. The technical and economic feasibility of treatment or beneficial use is a function of the accessibility or separability of the contaminants within the sediment. The magnitude of release to the environment during dredging and disposal is dependent upon the …
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Removal of hydrocarbons from urban stormwater runoff by gravity separation
… collected from the columns at specific depths and times over the 48-hour settling period. The samples were analyzed for total hydrocarbon content on a Horiba oil content analyzer. Hydrocarbon values were averaged at each column depth in order to construct average THC concentration and average …
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Treatment of food processing industrial wastewater using two stages anaerobic system
… is known for its high concentration of COD and suspended solid. In wastewater treatment, anaerobic process is favorable due to its low cost, biogas production, low sludge production and more. In this study, upflow anaerobic sludge bed (UASB) and hybrid-UASB (HUASB) reactors, were combined …
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Efficiency of natural coagulants for treatment of public market wastewater
… investigate the efficiency Moringa oleifera seed and Chickpea (Cicer arietinum) for the reduction Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), Oil and Grease (O&G), turbidity and colour in public market wastewater. Optimization studies were undertaken for different dosage, pH and …
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A study on stryhcnos potatorum and pisum sativum as natural coagulants for meat food processing wastewater
… total suspended solids (TSS), chemical oxygen demand (COD), oil and grease (O&G) and colour from meat food processing wastewater (MFPW). The most common method among them is flocculation-coagulation process which is widely used. Although inorganic coagulants are prominent in wastewater treatments, …
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Fibra de calotropis procera: uma alternativa eficaz na remoção de hidrocarbonetos de petróleo em meio salino como bioadsorvente
Environmental accidents involving petroleum oil spills and its derivatives in water environment bodies and soil is common and troubling, compromising the quality to the environment. To rectify these oil spills is the use of sorption method by employing natural fibers and biomass is one form of an …
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Characterization and treatment of wastewater from blue crab (Callinectes sapidus) processing facilities
… TKN-N = 2,500-4,000 mg/L, NH3-N = 70-160 mg/L and Total Phosphorus= 100-185 mg/L. One process effluent contained chloride concentrations exceeding 100,000 mg/L. Analysis of production and effluent characterization data from two mechanized plants revealed that wastewater volumes and …
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Effect of Long Chain Fatty Acids on Anaerobic Digestion of Municiapal Sewage Sludge in Completely Mixed Reactors
Fats, oil and grease (FOG) are generated in large amounts by cooking and food processing. Anaerobic co-digestion with municipal sewage sludge has proven to be one of best alternatives for FOG disposal due to its high potential for biogas production. However, excessive addition of long chain fatty …
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Using Anaerobic Co-Digestion With Addition of Municipal Organic Wastes and Pre-Treatment to Enhance Biogas Production From Wastewater Treatment Plant Sludge
In this project, by adding selected co-substrates and by incorporating optimum pre-treatment strategies, four experimental phases were conducted to assess the enhancement of biogas production from anaerobic co-digestion using wastewater treatment plant sludge as the primary substrate. In the first …
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Role of physico-chemical environmental factors in the emergence and development of insecticides resistant mosquito in Nigeria
… sources of selection pressure for the emergence and development of insecticides resistance in <i>Anopheles gambiae</i> from Northern Nigeria.Prospecting for, and sampling of <i>An. gambiae</i> larvae was carried out from many breeding sites in towns and villages spread out across Kano and Jigawa …
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Evaluation and optimisation of the performance of a multi-integrated lab-scale plant for the treatment of dairy wastewater
… content, potentially leading to eutrophication and hypoxic zones in water bodies. Effective treatment methods are essential to mitigate these impacts. This study evaluates the performance of a lab-scale wastewater treatment plant, combining various biological processes previously used for …
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Environmental aspects of storm runoff discharge from a timber port, Tauranga, New Zealand
… was undertaken into storm runoff water quantity and quality, contaminant input to the receiving tidal waters from the Mt. Maunganui wharf, accumulation of potentially toxic resin acids in adjacent sediments, and the dilution of the wharf runoff in the receiving tidal waters, in order to assess …
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Green Diesel Production Via Catalytic Hydrogenation/decarboxylation Of Triglycerides And Fatty Acids Of Vegetable Oil And Brown Grease
… projected increases in the world’s energy demand and environmental awareness have shifted the research interest to the alternative fuel technologies. In particular, green diesel, vegetable oil/animal fat/waste oil and grease derived hydrocarbons in diesel boiling range, has become an …